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cone crusher leaking oil

cone crusher - tips of operation and regular maintenance | hxjq

cone crusher - tips of operation and regular maintenance | hxjq

During the using process, if the worker operates and maintains the crusher according to correct standards, it will have great significance in normal production, output, quality, service life, working efficiency and the prevention of accidents, etc.

At present, the common cone crushers are mainly the single toggle cone crusher and compound cone crusher (Symons cone crusher). Although both types of cone crushers are totally different, they have the same operation procedure.

The operation procedure of cone crusher can be divided into four stages: before the start, at start-up, at run time and turning-off time. All conditions should be paid attention in each stage, and the potential problems can be found and solved timely and the service time can be prolonged.

Turn on the lubricating oil pump to run for three to five minutes. After everything runs well, turn on the crusher as required. After the crusher idles for one to two minutes, confirm that all things are well, and feed the rocks or stones.

During the crushing process, there is a great impact on the concave which makes the filled zinc layer be out of shape. Therefore, the U-type bolt should be tightened frequently to make the concave fix and avoid concave from deformation.

The mantle is fixed by the upper bolt of the main shaft. The looseness of the bolt can make the mantle unstable, even the filled layer may fall off to cause downtime. Hence, the bolts should be often checked and fixed to avoid looseness.

The spherical bearing should be installed in the borehole of crusher closely. After a long period of working, the tightness of crusher' parts can be broken. The tightness of spherical bearing must be checked frequently, and the oil gallery of the spherical bearing should be kept clean.

Water seal is the equipment for preventing crusher from dust, which is very important to the normal operation of cone crusher. Therefore, daily maintenance and checking its integrality are very necessary.

Through the study of this article, you must have a deeper understanding of the operation and maintenance of the cone crusher. In the case of the above-mentioned failure of the crusher, the problem is analyzed and solved by referring to the method given in this article.

14 cone crusher common problems and how to fix them | m&c

14 cone crusher common problems and how to fix them | m&c

Cone crusher has high crushing ratio, high efficiency, low energy consumption, uniform product size, suitable for medium crushing and fine crushing of various ores and rocks. In the cone crusher working process will encounter a variety of problems, So, we provides 14 common fault causes and solutions!

Table of Contents 1. The oil temperature is too high.2. Oil temperature and pressure rise.3.Oil pressure is low after oil pump is started4.Oil contain lots of fine mud and impurities.5.There is water in the oil6.The vibration of cone crusher is too strong.7. The crushing cone rotates very high.8. The sudden speed of the moving cone accelerates.9. Non-uniform rotation of transmission shaft10. Make splitting sounds.11. The coupling rotates and the crusher does not move.12. The drive shaft produces a strong knock.13. The supporting ring jumps.14. The size of ore discharging increases.

Cause: The quality of the oil is poor or the oil is insufficient; the bearing is damaged; the ambient temperature is high, there is no cooling water or the cooling water pressure is low; the cooler is clogged. Solution: change oil or refuel; change bearings; supply cooling water or increase the pressure of cooling water; clean the cooler.

Causes: water enters the lean oil station; the cooler leaks, and the water pressure is greater than the oil pressure; water supply too much or the return pipe is blocked. Solutions: Clean oil tank and replace oil; repair leakage or replace cooler, reduce water pressure, clean oil tank and replace oil; adjust water supply or clean water return pipe, clean oil tank and replace new oil.

Causes: Cone crusher base is loosening; Difficult-to-break materials enter the crushing chamber, leading to blockage; parts break or wear; poor lubrication makes the spindle tightened by bushing. Solutions: fastening bolts, pouring; controlling the type of feed, strictly forbidding the entry of non-fragments; strictly controlling the amount of feed; stopping the machine to check accessories; replacing damaged parts, repairing oil pumps and pipelines.

Causes: oil shortage or dust in oil between spindle and bushing; insufficient clearance of tapered bushing; wear or manufacturing reasons of bowl bearing bush, contact surface deep to inner circle, conical body sinking. Solutions: overhaul or replace bushings, spindles, etc., and find out the causes of oil shortage, eliminate it; adjust bushing clearance; re-scrape, and meet the requirements.

Causes: serious wear or damage of gears; damage of connection keys; breakage of spindle. Solutions: stop and replace gears, and make meshing clearance meet the requirements; change the connection keys; change the spindle, strengthen iron removal work.

380x cone crusher. Raised to clear to empty out it wont come back down. The open/ close switches work along with clear button. So hyd works. Turn on delivery belt and pull the lube/ hyd button to bring cone down. hyd wont engage. Changed the contacts on the pull button. Nothing. Swap soil nods no go.

The cone crusher can not be restarted immediately when it stops suddenly, so as to avoid secondary damage to the cone crushing production line. First of all, you should find out the reasons for the sudden stop of the cone crusher, there are 5 common reasons:

1. The discharge port of the cone crusher is blocked, too much or uneven feeding will lead to the blockage of the discharge port, resulting in excessive production load of the crushing machine, resulting in the fracture of the fuse and lead to shutdown.

2. Sudden shutdown may also be caused by too low or too high voltage, unstable voltage or easily forcing the cone to break self-protection resulting in shutdown. So be sure to check whether the voltage is normal before turning on.

3. It may be the eccentric shaft problem, the eccentric shaft fixed bushing loose or falling will lead to no gap between the bearing housing and the frame, resulting in the eccentric shaft can not operate, so the cone crusher will stop suddenly.

First of all, before starting up, check to see if there is any residue in the tapered discharge opening, clean it up immediately, and pay attention to control the feeding evenly, not too much or too little.

The second is whether the belt tightness is appropriate, reasonable adjustment to prevent too tight or too loose. In addition, pay attention to the voltage situation to maintain the stability of the voltage.

common faults and solutions of cone crusher | quarrying & aggregates

common faults and solutions of cone crusher | quarrying & aggregates

Cone crusher is the most common secondary and tertiary crushing equipment. It has high production efficiency and uniform product size. However, in harsh environments, cone crushers will also encounter various problems when working. This article shares common faults and solutions of cone crushers.

how to maintain a cone crusher---five tips for you - zhongde heavy industries co.,ltd

how to maintain a cone crusher---five tips for you - zhongde heavy industries co.,ltd

Compared with traditional stone crushers, Cone crusher is a more advanced and very popular equipment now. Cone crusher has the ability to crusher various materials and its processing efficiency is higher. Therefor, users are very satisfied with the machine. This is why cone crusher is todays mainstream equipment of stone crushers.

Tip 3: Change regularly lubricating oil. When oil gets dirty, the bad lubrication will lead to accelerated wear of gears, bowl shaped tiles and shaft sleeve, even the damage of shaft sleeve, so the replacement of oil is a must.

Tip 4: Check regularly slip rings fixing. If dust sealing slip ring becomes loose or falls off in the processing of crushing, a great amount of dust and mineral sand will enter the cone crushers body, thereby preventing the equipment from normal processing, even badly damaging the machine.

Tip 5: When water in oil forces oil level up, adjust water pressure to make it is slightly lower than oil pressure; check and repair the part of leaking; adjust water supply; clean up water pipes and tank and change new oil. Water in oil is caused by water pressure in cooler higher than oil pressure, leaking of cooler, over water supply and clogged pipes. So we can use the ways above to solve the problem.

In fact, maintenance is a trivial job. Its ordinary maintenance work that influences the operating of equipment and its service life. Zhongde Heavy Industries is a leading brand of cone crusher. In our company, product quality is assured and after-sale service is good. Welcome to contact us online and tell us your needs.

NOTE: please feel free to fill out the form below in detail and you can also send a message to us([email protected]) we will send you latest price within 24 hours.Besides, you can click Chat Online on the right hand side to get quotation online

cone crusher oil system, dust seal & thrust bearing

cone crusher oil system, dust seal & thrust bearing

The second group of crusher components consists of the Cone Crushersoil system, the Cone Crushers dust seal and the thrust-bearing. The oil system, like the one used with the primary crusher, is one that requires a large EXTERNAL RESERVOIR. It has the same features that was described earlier in the chapter that dealt with the Primary crusher. It too lubricates a thrust bearing, Eccentric inner and outer bearing, and crown and pinion gear.

One of the difference in this type of crusher over the gyratory crusher is that these crushers require a DUST SEAL to prevent dust and -dirt from getting into the internal workings of the crusher. The seal is made up of three components. Two rings that circle the crusher. These rings may be made from a variety of materials depending upon the age and type of crusher. Their purpose is to provide a smooth interface that the moving crusher mantle will slide over as it gyrates. The third component is WATER, it is this water that forms the fluid barrier that the dust will not be able to penetrate. Any dirt that comes into contact with the water will be carried away. This makes the water flow a very important item in an operators check list.

Another area that an operator should he checking periodically is under the crusher in the discharge chamber. Under the crusher there is an armour protected arm. This arm provides access for the drive shaft, dust seal water and oil lines. It also provides a place for wire, plastic, and assorted garbage to collect. It should be cleaned off once in a while. Cleaning off this arm also provides the operator with the opportunity of visually checking the liners for wet spots that would indicate water leaking from a worn dust seal.

the common questions of cone crusher and corresponding solutions | hxjq

the common questions of cone crusher and corresponding solutions | hxjq

Crushing machine is the most widely used equipment in the mining industry, and it is divided into several types according to different applications. The cone crusher is one of the most common ones and often used as the secondary crushing machine in the whole stone crushing process.

During the operation of the cone crusher, the operator often encounters a variety of problems. This article will list the common problems of the cone crusher and our professional engineers will give the most appropriate solutions, hoping it can help you.

Poor oil quality will reduce the viscosity of the oil film, causing the oil film to rupture in the process of breaking the spindle bushing, causing the copper sleeve to burn out. Therefore, it should be checked and replaced in time.

When the oil tubing is blocked or the oil pump's capacity is reduced, it is easy to cause the copper bush to be oil-free and the oil film cannot be formed until the copper sleeve is burnt. Therefore, the pipeline and the oil pump should be inspected regularly to ensure sufficient oil.

If the materials are mixed with iron, iron will increase the instantaneous load of the crusher, causing the oil film to rupture and burning the copper bush. Therefore, the metal detector on the feeding machine should maintain a sensitive and reliable state.

The gap between the spindle and its bushing should be kept between 1.0 and 1.2 mm. If it is too large or too small, the copper bushing will be burnt. Therefore, the gap between the spindle bushing and the spindle should be carefully checked during the replacement of new bushings.

The deformation of the spindle will cause a significant reduction in the cooperation between the spindle and the spindle bushing, especially after the crusher is running hot, causing the copper sleeve to burn. Therefore, the spindle status needs to be checked regularly.

Generally, the gap between the locking ring and the adjusting ring of the newly installed crusher is 12.5 mm. Therefore, according to the wear condition of the adjusting ring and the locking ring thread, the gap between the two can be appropriately increased to increase the locking force.

Different types of cone crushers have different maximum feeding sizes. Once the size of materials exceeds the maximum feeding range, the crushing load will increase and the locking force will be relatively insufficient, causing the adjustment ring to vibrate and adversely affect the product size. Therefore, the feed size needs to be strictly controlled.

Due to the improper or unreasonable position of the crusher feeding chamber, the feeding center and the crusher center seriously deviate, resulting in an unbalanced crushing force of the crusher, which makes the adjusting ring has a large force on one side.

The locking ring and the adjusting ring are combined by four bolts. Due to there is mixed with iron in material or the feeding size is overlarge, causing the locking bolt of crusher overload and brake, and the adjusting ring vibrates. Therefore, under this condition, the locking bolts should be replaced and the gap between the locking ring and adjusting ring should be set in the correct position.

The short type cone crusher with the longest parallel band can crush materials to a relatively fine size. And generally, it is used in the fine crushing process; while standard type cone crusher can crush materials to a relatively coarse size, but it has a high output and usually used in the middle crushing process.

During the crushing process, the worn condition of the sealing ring between the shaft frame and the mainframe should be checked. After a long term of use, this part of cone crusher may be worn and the original flexibility of the sealing ring would be reduced.

The reason for the oil leakage may also be that the oil cannot be quickly discharged from the equipment, especially when the oil temperature is low. Therefore, in the production, it should be checked whether there is any dirt in the main oil drain hose or pipe. Otherwise, the accumulation of dirt will hinder the flow of oil, which will cause the cone crusher to leak oil.

If the oil return hole of the U-shape tile of the cone crusher is too small, the lubricating oil will be leaked, and the amount of oil returned is small, which cant satisfy the well-lubrication of gears. In this case, it is necessary to appropriately increase the oil return hole of the U-shape tile to ensure the oil return amount, and fundamentally solve the problem of ole leakage and poor lubrication of the bevel gear.

The lubricating oil enters the lower part of the main shaft from the inlet pipe and is rubbed by the lubricating friction disc. If the working pressure of the cone crusher lubrication system is improper, the oil will be ejected from the shaft gap, causing the lubricating oil to leak downward along the outer circumference of the sealing cylinder.

If the gap between the inner wall of the base oil sump and the counterweight oil baffle ring plate is too small, the lubricating oil between them will easily form an oil seal under the action of tension during the working process of the cone crusher. Under the pressure of the air pressure, the oil seal will continuously overflow from the dust seal along the inner wall of the mainframe.

The design of the sealing structure is related to the effect of the sealing and the life of the sealing ring. The sealing effect of the sealing ring depends on the size of the mounting groove. The sealing ring installation groove is too deep and the compression of the sealing ring is insufficient of which will make a bad sealing effect.

Install the sealing ring correctly to ensure that the equipment is well sealed. Do not install the sealing ring with an angled tool to prevent scratching from the rings and avoid stretching it to deformation. Lubricate the sealing ring properly for installation.

Therefore, we should prohibit the temperature rise of the lubricating oil by increasing the heat dissipation area of the fuel tank to improve the heat dissipation effect of the fuel tank. If necessary, a cooler can be added to reduce the temperature of the lubricating oil.

The author hopes that the above questions and corresponding answers can help you. If you have any other questions about the cone crusher, please fill out the message form on the right or send us an email, our engineers will give you the first reply.

cone crusher maintenance critical to optimum output - quarry

cone crusher maintenance critical to optimum output - quarry

Even performing minor clean-up and inspections around and on cone crushers on a daily basis can yield increased service life. But doing a bit more can boost production performance and product quality. Kraig Thistle, a regional service technician for Telsmith in the US, shares some top tips for getting the most from cone crushers.

CHOKE FEEDING IS A MUSTAt the top of Thistles list is keeping the cone crusher choke fed during operation a practice that maximises the effectiveness of rock on rock crushing, which in turn maintains maximum manganese wear life and ensures a quality product shape. He stresses that it is common to see crushers operating with too little feed or with too many fines in the feed.

{{image2-a:r-w:250}}A lack of feed causes side loading of the machine, which means crushing forces are affecting all internal components. Similarly, in the case of an overabundance of fines, crushing forces subject components to damage and premature wear. Additionally, when not choke feeding, one is increasing recirculating loads, which affects components such as screens or other crushers that are downstream of the circuit.

OIL LUBRICATION A PRIORITYThe importance of timely oil changes cannot be stressed enough because your crusher uses the oil supply for cooling and lubrication. Allowing the crusher to operate with worn out or contaminated oil could lead to a reduction in bearing, gear and liner life. Check your oil and filters daily and change them at the proper intervals recommended in your owners manual.

Always uncover the source of contaminants. For instance, where oil leaks out, contaminants such as dust particles and water can get in. Inspect all your hydraulic systems and tag any leaks for corrective action on the very next maintenance cycle. Completely drain and thoroughly clean out the inside of the oil tank to eliminate any contaminants before refilling.

It is important to note that establishing a scheduled oil sampling program indicates a baseline of normal wear and can help indicate when abnormal wear or contamination is occurring. Oil that has been inside any moving mechanical apparatus for a period of time reflects the exact condition of that assembly.

Lubricate the oil pump bearings every 500 hours. Check reservoir oil level daily and change oil every 600 hours of operation. Perform a weekly inspection of the oil pump shaft seal. A slow drip of oil from this seal is normal while the pump is operating. If oil leakage is greater than a small drip, evenly tighten the packing gland (seal) until about one drip per minute is visible with the pump operating. Do not over-tighten the seal so no oil drip is present. The small drip must be present when the pump shaft is rotating.

Lubrication systems with tank-mounted oil pumps allow oil to be circulated before crusher start-up to provide pre-lubrication of the crusher internal components. An alarm system is an integral part of this lube system. During the operation of certain cone crushers, an alarm may sound if any of the following abnormal conditions occur for more than five seconds: a low feed-line oil flow; a low feed-line oil pressure; or a high return-line oil temperature. If these conditions continue to occur, a time-delayed shutdown of the crusher may occur.

{{image3-a:l-w:250}}The cone crusher may be equipped with either an air/oil cooler or a water cooler to help dissipate heat from the lube oil. The air/oil cooler will require periodic cleaning of the cooling fins to remove debris or build-up of dust and dirt. When cleaning the cooler fins, the fan blades should also be checked for build-up that could unbalance them.

The water cooler will need to be drained on a seasonal basis to keep it from freezing in winter conditions. At the time the cooler is drained, the passages should be blown out to check for debris or scale build-up.

When upgrading to modern cone crusher designs, ask your supplier about the engineering of the systems tank and oil cooler. Certain crushers feature clean and simple designs that allow reduced maintenance and provide greater protection against environmental hazards.

For example, new designs may offer a streamlined approach to plumbing, with an oil pump, suction line, motor coupling and bypass line all mounted inside the tank. This significantly reduces the risks of costly environmental damage caused by oil spills. To further simplify the plumbing, an oil distribution manifold is used, incorporating a bypass relief valve and a thermal bypass valve into the manifold. The integrated manifold protects the crusher from high oil pressure and offers better temperature control a benefit particularly to those who operate in extreme climates.

USE THE CORRECT OILThe type and condition of your lubrication oil is critical to successful operation of your cone crusher. Crushing with worn out oil or oil of the wrong specification can significantly reduce crusher life. Your crusher is designed to work with lube oil in the range of 10oC to 51oC.

A sensor switch at the reservoir return line controls the maximum oil temperature. If your crusher is being used regularly in extreme heat (38oC plus) or cold temperatures (-23oC) and it is hard to maintain crusher oil in the correct operating range, it may be helpful to switch to synthetic oil.

INSPECT THE MAIN FRAME{{image4-a:r-w:250}}Inspect the main frame bore for nicks, burrs, scoring or other damage. Attempt to remove any imperfections with a file or emery cloth. Use a micrometer to measure the bore at the top, bottom and centre. At each position, check the dimension at two places 90 degrees apart.

The average of all six measurements must fall within an acceptable range. If high spots cannot be filed down to an acceptable range, the bore will need to be re-machined into tolerance. Check the bore carefully after re-machining for burrs, particularly at the keyways and grooves. A main frame ?bore that is worn outside the tolerance limits will need to have the worn spots welded up and the complete bore re-machined to tolerance.

CHECK YOUR ALARMS DAILYIf electrical changes are made or programs are altered in automated systems, verify that all alarms and interlocks still function properly. Dont be afraid to replace switches or timers that appear damaged or are in poor condition. This is much cheaper than the completion of a major overhaul. Never disable or alter any alarms or interlocks!

KNOW YOUR MACHINE, REACT ACCORDINGLYRecord vital machine information such as motor amps and oil pressure in a variety of operating conditions. This will allow you to identify trends and will also help to detect problems before they cause costly damage or downtime.

gyratory crusher lubrication

gyratory crusher lubrication

The lubrication of Gyratory crushers may be one of the special problems that the Jaw crusher isnt as readily exposed to. This crusher, because it may be loaded from two sides, often is used in an open pit situation where large ore carriers are dumping directly into the crusher. This means that the machinery is exposed to whatever climate it is being operated in. In hot areas the oil may have to be cooled while the opposite is true for the colder climates. The oil temperature must be kept moderate so that it will provide the necessary cooling as well as warm enough to be easily pumped through the oil system. (not specificallygyratory spider grease).

In most of the modern crushers, instrumentation has been included in their design to provide control over the temperature range of the oil. If the temperature should exceed either the low or high set point then the crusher will automatically shut down. To aid in the cooling a large volume of oil is constantly circulated, by pump, through the oil system. Because of this volume and because it may have to be heated in cold climates, an external holding tank or reservoir is used. To .heat the oil a submersible heating unit will be placed inside this tank.

Now lets see what this oil lubricates. From the holding tank the oil will be pumped through filters to take out any solids that may be accumulating in the oil. From the filters the oil goes to the drive assembly to lubricate the pinion gear, the thrust bearing, eccentric bushing, as well as the eccentric itself from there it returns to the reservoir.

You notice that the oil doesnt lubricate the Spider bearing. This bearing is normally greased instead. You will notice the different types of alloys and surfaces that have to be lubricated, the pinion and crown gear, the alloys of the bronze thrust bearings and the eccentric which is made from Babbitts Metal. It is very important for these metals that the right type of oil or grease be used as a lubricant. In fact most manufacturers guarantees are void if the wrong oil is used.

I would like to put a foot note in here on thrust bearings, the name thrust bearing is not so much the type of bearing but the job that it does. As an example, the thrust bearing in a crusher is two flat pieces of metal with oil channels in between them. They support the weight of the mantle as well as provide an anti-friction surface for the rotation of the mantle.

There is another thrust bearing that looks very much like an ordinary roller hearing. The difference is the race and the cage of this hearing is heavier, with the hearings themselves sitting deeper into the race.

Lets get hack to our oil system. The reservoir is the area that the operator will give the most of his attention to when he does his circuit checks. It is here that problems with the system will he discovered. At the reservoir there will be gauges to indicate TEMPERATURE and LINE PRESSURE. These of course indicate any fluctuation of the oil temperature or pressure. A change in either of these could mean that a hearing is worn out, the oil level is to low, oil flow low, or perhaps dirty oil. If the crusher is fitted with a water line to cool the oil, it may be restricted or shut off.

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