Cone crusher lubricating system and control method

Abstract

The invention relates to the technical field of cone crushers, and discloses a cone crusher lubricating system and a control method.The cone crusher is provided with a lubricating oil inlet and a lubricating oil outlet, the lubricating system comprises an oil tank, a valve block, a radiator and a driving pump, and specifically, the oil tank is provided with a first valve; the valve block is provided with a first oil way, a second oil way and a third oil way, the second oil way and the third oil way are communicated, the second oil way is communicated with the oil tank, an overflow valve is connected between the first oil way and the second oil way, and the first oil way is communicated with the oil tank. A radiating inlet of the radiator is communicated with the third oil way, and a radiating outlet of the radiator is communicated with the lubricating oil inlet; the driving pump is arranged between the oil tank and the second oil way; wherein in the vertical direction, the radiator is higher than the valve block, and the valve block is higher than the oil tank. According to the cone crusher lubricating system and the control method, the problem that when the lubricating system is started, oil pressure in the lubricating oil system is too large, and the radiator is damaged is solved or improved.

Description

Technical Field

[0001] This application relates to the field of cone crusher technology, specifically to cone crusher lubrication systems and control methods. Background Technology

[0002] Currently, the lubrication system of the cone crusher is used to lubricate the main bearing of the cone crusher. The lubricating medium is high-viscosity lubricating oil. The lubricating oil will enter the main body of the cone crusher through components such as filters and radiators, and return to the oil tank after completing lubrication and heat dissipation.

[0003] Lubricating oil has high viscosity and poor fluidity at low temperatures, resulting in high resistance when flowing through components and pipelines in the system. When the oil pump starts, it pumps in a large amount of lubricating oil, which generates a large pressure shock on the lubrication system. For example, in order to improve heat dissipation, the heat sink fins are relatively thin, which are prone to cracking when subjected to instantaneous impact, leading to oil leakage. Summary of the Invention

[0004] In view of this, this application provides a lubrication system and control method for a cone crusher to solve or improve the problem of excessive oil pressure in the lubrication system damaging the radiator when the lubrication system is started.

[0005] In a first aspect, this application provides a lubrication system for a cone crusher, wherein the cone crusher is provided with a lubricating oil inlet and a lubricating oil outlet, and the lubrication system includes: The fuel tank is equipped with a first valve; The valve block is provided with a first oil passage and a second oil passage and a third oil passage that are interconnected. The second oil passage is connected to the oil tank. An overflow valve is connected between the first oil passage and the second oil passage. The first oil passage is connected to the oil tank. A radiator, wherein the radiator's heat dissipation inlet is connected to the third oil passage, and the radiator's heat dissipation outlet is connected to the lubricating oil inlet; A drive pump is installed between the oil tank and the second oil circuit; In the vertical direction, the radiator is higher than the valve block, and the valve block is higher than the oil tank.

[0006] In this embodiment, when the cone crusher is working, the drive pump is started, the first valve is closed, and the drive pump delivers lubricating oil from the oil tank to the second oil circuit. The second oil circuit is connected to the third oil circuit. The lubricating oil passes through the third oil circuit and the radiator's heat dissipation inlet, then exits from the radiator's heat dissipation outlet, and re-enters the cone crusher's lubricating oil inlet before flowing back to the oil tank. After the cone crusher stops working, the drive pump is turned off, the first valve is opened, the radiator is higher than the valve block, and the valve block is higher than the oil tank. The lubricating oil in the system returns to the oil tank under gravity, and air fills the components and pipelines in the lubrication system, replacing the lubricating oil. When the cone crusher is restarted, the system contains air. The drive pump is started, and the lubricating oil compresses the air in the system. The air is compressed, and the pressure of the lubricating oil on the components and pipelines is buffered, preventing damage to the radiator and pipelines from excessive instantaneous oil pressure when the drive pump is started.

[0007] In one alternative embodiment, a second valve is further included, which is disposed between the first oil passage and the second oil passage.

[0008] In one alternative implementation, the second valve is a solenoid valve or a manual valve.

[0009] In one optional embodiment, the oil tank and the second oil circuit are connected via a first oil pipe, and the drive pump is mounted on the first oil pipe.

[0010] In an alternative embodiment, a filter is further included, which is disposed on the first oil pipe and located between the drive pump and the second oil passage.

[0011] In an alternative embodiment, a one-way valve is also included, which is disposed on the first oil pipe, and the drive pump delivers lubricating oil to the second oil circuit.

[0012] In one optional embodiment, the heat dissipation outlet of the radiator is connected to the oil tank via a second oil pipe, and a flow stabilizing valve is provided on the second oil pipe.

[0013] In one alternative embodiment, the first oil passage is connected to the second oil passage via a third oil pipe.

[0014] In one optional embodiment, the valve block is provided with a first opening, a second opening and a third opening, the first opening being connected to the first oil passage, the second opening being connected to the second oil passage, and the third opening being connected to the third oil passage. In the vertical direction, the second opening is higher than the third opening, and the third opening is higher than the first opening.

[0015] Secondly, this application also provides a control method applied to the aforementioned cone crusher lubrication system, the control method comprising: Obtain the startup command; The drive pump is started and the first valve is closed according to the start command; Obtain the stop command; The drive pump is shut down and the first valve is opened according to the stop command. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a lubrication system for a cone crusher according to an embodiment of this application; Figure 2 This is an exploded view of a valve block in a cone crusher lubrication system according to an embodiment of this application; Figure 3 This is an exploded view of a valve block in a cone crusher lubrication system according to an embodiment of this application from another angle; Figure 4 This is a schematic diagram showing the connection between the radiator and the valve block in a lubrication system of a cone crusher according to an embodiment of this application; Figure 5 This is a schematic diagram of another cone crusher lubrication system according to an embodiment of this application; Figure 6 This is an exploded view of a manual valve in a cone crusher lubrication system according to an embodiment of this application; Figure 7 This is an exploded view of a manual valve in a cone crusher lubrication system according to an embodiment of this application from another angle; Figure 8 This is an exploded view of a manual valve in a cone crusher lubrication system according to an embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 1. Cone crusher; 2. Lubricating oil inlet; 3. Lubricating oil outlet; 4. Oil tank; 5. Valve block; 6. First oil circuit; 7. Second oil circuit; 8. Third oil circuit; 9. Radiator; 10. Heat dissipation inlet; 11. Heat dissipation outlet; 12. Drive pump; 13. Second valve; 14. First oil pipe; 15. Filter; 16. Check valve; 17. Second oil pipe; 18. Flow stabilizing valve; 19. First opening; 20. Second opening; 21. Third opening; 22. Third oil pipe; 23. Overflow valve; 24. Pressure gauge; 25. Pressure switch; 26. Fourth oil pipe; 27. Fourth opening; 28. Fifth opening; 29. ​​Sixth opening; X, Vertical direction. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] Currently, the lubrication system of the cone crusher is used to lubricate the main bearing of the cone crusher. The lubricating medium is high-viscosity lubricating oil. The lubricating oil will enter the main body of the cone crusher through components such as filters and radiators, and return to the oil tank after completing lubrication and heat dissipation.

[0023] Lubricating oil has high viscosity and poor fluidity at low temperatures, resulting in high resistance when flowing through components and pipelines in the system. The oil pump injects a large amount of lubricating oil at startup, creating a significant pressure shock on the lubrication system. For example, radiators with thin fins designed for efficient heat dissipation are prone to cracking under this sudden impact, leading to oil leakage. Therefore, this application provides a lubrication system and control method for a cone crusher to solve or improve the problem of excessive oil pressure damaging the radiator during system startup.

[0024] The following is combined with Figures 1 to 8 This describes an embodiment of the present application.

[0025] According to an embodiment of this application, in one aspect, a lubrication system for a cone crusher is provided. The cone crusher 1 is provided with a lubricating oil inlet 2 and a lubricating oil outlet 3, such as... Figure 1 and Figure 4 As shown, the lubrication system includes: an oil tank 4, a valve block 5, a radiator 9, and a drive pump 12. Specifically, the oil tank 4 is equipped with a first valve; the valve block 5 is equipped with a first oil passage 6 and a second oil passage 7 and a third oil passage 8 that are interconnected. The second oil passage 7 is connected to the oil tank 4, and an overflow valve 23 is connected between the first oil passage 6 and the second oil passage 7. The heat dissipation inlet 10 of the radiator 9 is connected to the third oil passage 8, and the heat dissipation outlet 11 of the radiator 9 is connected to the lubricating oil inlet 2; the drive pump 12 is located between the oil tank 4 and the second oil passage 7. In the vertical direction X, the radiator 9 is higher than the valve block 5, and the valve block 5 is higher than the oil tank 4.

[0026] In this embodiment, such as Figure 1 and Figure 4 As shown, when the cone crusher 1 is working, the drive pump 12 is started and the first valve is closed. The drive pump 12 delivers the lubricating oil in the oil tank 4 to the second oil circuit 7. The second oil circuit 7 is connected to the third oil circuit 8. The lubricating oil passes through the third oil circuit 8 and the heat dissipation inlet 10 of the radiator 9, and then exits from the heat dissipation outlet 11 of the radiator 9. It then enters the lubricating oil inlet 2 of the cone crusher 1 and flows back to the oil tank 4. After the cone crusher 1 stops working, the drive pump 12 is closed and the first valve is opened. The radiator 9 is higher than the valve block 5, and the valve block 5 is higher than the oil tank 4. The lubricating oil in the system (mainly the lubricating oil in the radiator) returns to the oil tank 4 under the action of gravity. Air fills the components and pipelines in the lubrication system, and the lubricating oil in the system is replaced by air. When the cone crusher 1 is restarted, there is air in the system. The drive pump 12 is started, and the lubricating oil compresses the air in the system. The air is compressed, and the pressure of the lubricating oil on the components and pipelines is buffered, which can prevent the instantaneous excessive oil pressure when the drive pump 12 is started from damaging the radiator 9 and the pipelines.

[0027] When the pressure in the system is too high, the relief valve 23 opens to deliver some of the lubricating oil in the system to the oil tank 4, effectively reducing the oil pressure in the system.

[0028] In some embodiments, such as Figure 1 As shown, the lubricating oil outlet 3 is connected to the oil tank 4 through the fourth oil pipe 26.

[0029] In some embodiments, such as Figure 1 and Figure 4 As shown, the first valve is an oil breather valve, and the drive pump 12 is a gear pump. When the equipment stops, the gear pump shuts off and stops pumping oil. At this time, the lubricating oil in the radiator 9, valve block 5, and system pipelines flows naturally to the oil tank 4 located at the lowest point of the system under its own gravity, thus achieving self-draining of oil and replacing it with air inside the system. When the equipment restarts, because the radiator 9 and some pipelines are filled with air, and air is highly compressible, the lubricating oil pumped in by the gear pump compresses the air as soon as the equipment starts. The pressure inside the system gradually increases, avoiding the generation of peak pressure and protecting the equipment. At the same time, the slowly increasing pressure can discharge the residual oil in the subsequent pipelines that has not been completely drained, thus clearing the system, which is equivalent to a "soft start".

[0030] In some embodiments, such as Figure 1 and Figure 4 As shown, the pipeline of oil tank 4 is located at a lower position (oil tank 4 is located at the lowest position, not shown in the figure), valve block 5 is located at a lower middle position, and radiator 9 is located at a higher position. At the same time, the heat dissipation inlet 10 at the bottom of radiator 9 is higher than valve block 5, so that the residual oil in radiator 9 can be discharged by its own weight and its fluidity.

[0031] In one embodiment, such as Figure 1 As shown, it also includes a second valve 13, which is disposed between the first oil passage 6 and the second oil passage 7.

[0032] In this embodiment, such as Figure 1 As shown, the second valve 13 can switch the first oil passage 6 and the second oil passage 7 on and off. When the equipment stops working, the second valve 13 is opened, and the first oil passage 6 and the second oil passage 7 are connected, so that the lubricating oil in the second oil passage 7 and the first oil passage 6 can flow back to the oil tank 4 through the first oil passage 6.

[0033] In one embodiment, the second valve 13 is a solenoid valve or a manual valve.

[0034] Specifically, solenoid valves are easy to control and can achieve automation.

[0035] In one embodiment, such as Figure 1 As shown, the oil tank 4 and the second oil circuit 7 are connected by the first oil pipe 14, and the drive pump 12 is installed on the first oil pipe 14.

[0036] In one embodiment, such as Figure 1 As shown, it also includes a filter 15, which is installed on the first oil pipe 14 and located between the drive pump 12 and the second oil passage 7.

[0037] In this embodiment, the filter 15 can filter impurities in the lubricating oil, remove the impurities from the system, and prevent impurities from accumulating and causing blockage.

[0038] In one embodiment, such as Figure 1 As shown, it also includes a one-way valve 16, which is installed on the first oil pipe 14 and drives the pump 12 to deliver lubricating oil to the second oil circuit 7.

[0039] In one embodiment, such as Figure 1 As shown, the heat dissipation outlet 11 of the radiator 9 is connected to the oil tank 4 through the second oil pipe 17, and a flow stabilizing valve 18 is installed on the second oil pipe 17.

[0040] In this embodiment, the flow stabilizer valve 18 can improve the stability of the lubricating oil flow in the second oil pipe 17, ensure the pressure stability in the second oil pipe 17, and thus improve the pressure stability of the entire system.

[0041] In some embodiments, a pressure gauge 24 and a pressure switch 25 are provided on the second oil pipe 17.

[0042] In one embodiment, such as Figure 1 As shown, the first oil passage 6 is connected to the second oil passage 17 via the third oil pipe 22.

[0043] In this embodiment, the first oil passage 6 is connected to the second oil passage 17 via the third oil pipe 22, and then to the oil tank 4. When the equipment stops working, the lubricating oil in the second oil passage 7 and the third oil passage 8 can flow back to the oil tank 4 through the first oil passage 6 and the second valve 13.

[0044] In one embodiment, such as Figures 1 to 4 As shown, the valve block 5 has a first opening 19, a second opening 20 and a third opening 21. The first opening 19 is connected to the first oil passage 6, the second opening 20 is connected to the second oil passage 7, and the third opening 21 is connected to the third oil passage 8. In the vertical direction X, the second opening 20 is higher than the third opening 21, and the third opening 21 is higher than the first opening 19.

[0045] In this embodiment, besides the layout of lubrication system components and pipelines, the pipeline design of valve block 5 is also crucial to ensuring smooth oil drainage. For example... Figure 2 and Figure 3As shown, the first opening 19 is on the side of valve block 5, with the lowest height, and connects to the oil return port of oil tank 4; the third opening 21 is on the front of valve block 5, slightly higher than the first opening 19, and connects to the heat dissipation inlet 10 of radiator 9; the second opening 20 is on the top of valve block 5, with the highest height, and connects to check valve 16. When the equipment starts, the solenoid valve is energized, and lubricating oil enters from the second opening 20, passes through the third opening 21 into radiator 9, and then enters the conical main unit from radiator 9 for lubrication. When the equipment stops, the solenoid valve is de-energized, and the remaining oil in radiator 9 and some related pipelines slowly flows back to oil tank 4 under its own gravity.

[0046] In some embodiments, such as Figures 1 to 3 As shown, the valve block 5 has a first opening 19, a second opening 20 and a third opening 21. A fourth opening 27 is provided on the side adjacent to the second opening 20. The second opening 20 is connected to the fourth opening 27 through the second oil passage 7. The solenoid valve has a fifth opening 28 and a sixth opening 29. The fourth opening 27 is connected to the fifth opening 28. The fifth opening 28 and the sixth opening 29 are connected and disconnected by the movement of the solenoid valve core. The sixth opening 29 is connected to the first opening 19.

[0047] In working condition, such as Figure 1 As shown, the centerline of the first oil passage 6 between the sixth opening 29 and the first opening 19 is at a 0-degree or small angle to the horizontal plane, and the sixth opening 29 is slightly higher than the first opening 19 in the vertical direction X. In addition, the second opening 20 and the third opening 21 are both connected to the high-pressure chamber of the relief valve 23, while the first opening 19 is connected to the low-pressure chamber of the relief valve 23. When the relief valve 23 is open, the lubricating oil enters from the high-pressure chamber into the low-pressure chamber and returns to the oil tank 4 through the first opening 19.

[0048] In the overall system design, the layout of the oil return port of the oil tank 4, the valve block 5, the solenoid valve, and the radiator 9 has an appropriate height difference. Along the vertical direction X, the heat dissipation inlet 10 of the radiator 9 is higher than the second opening 20 of the valve block 5, the second opening 20 of the valve block 5 is higher than the third opening 21 of the valve block 5, the third opening 21 of the valve block 5 is higher than the first opening 19 of the valve block 5, and the first opening 19 of the valve block 5 is higher than the oil tank 4. The oil tank 4 is connected to or closed to the atmosphere through the first valve.

[0049] In some embodiments, the pipeline between the second opening 20 and the third opening 21 of the valve block 5, the heat dissipation inlet 10 of the radiator 9, the first opening 19 of the valve block 5, and the oil tank 4 is kept straight and without a "water trap" structure, so as to ensure that the lubricating oil in the radiator 9 flows out under the action of gravity.

[0050] In some embodiments, such as Figures 5 to 8As shown, the manual valve includes a valve body, a relief valve 23, and a plate ball valve. Ports P and A of the valve body are connected to port T. Port P connects to port p1, which in turn connects to port p2. Ports p2 and t2 are the inlet and outlet ports of the plate ball valve. When the ball valve is closed, port p2 and port t2 are not connected. When the ball valve is open, port p2 and port t2 are connected, and port t2 connects to port t1 of the valve body. Port t1 is connected to port T of the valve body. By controlling the opening and closing of ports p2 and t2, the opening and closing of ports P and T are achieved. The height of all the ports and associated oil passages along the vertical direction X satisfies: T ≤ t1 = t2 = p2 = p1 ≤ A ≤ P.

[0051] Specifically, the structure of the valve body is the same as that of the valve block 5. The first opening 19 is equivalent to the T port, the second opening 20 is equivalent to the P port, and the third opening 21 is equivalent to the A port.

[0052] In some embodiments, the plate ball valve is closed, the oil circuit is blocked, and the lubricating oil enters from the P port of the valve body, exits through the A port, and enters the radiator 9.

[0053] When the equipment is shut down: the plate ball valve opens, and the residual oil in the valve body and its inlet and outlet pipelines flows naturally to the oil tank 4 located at the lowest point of the system under its own gravity, thereby realizing self-draining of oil, and the system is replaced with air.

[0054] When the equipment is restarted, a "soft start" is achieved because the radiator 9 and some pipes are filled with air.

[0055] In some embodiments, the key to this solution is self-draining oil and air replacement, which includes the following features: 1. The oil level in the oil tank 4 must be at the lowest position, the valve block 5 at the second lowest position, and the radiator 9 at the highest position (because the residual oil in the radiator 9 accounts for most of the residual oil in the system, the self-draining oil mainly considers the radiator 9).

[0056] 2. The piping between the oil tank 4, valve block 5, and radiator 9 should be designed to be arranged from low to high, and there should be no "water trap" structure in the middle to facilitate oil drainage and the entry of external air.

[0057] 3. The valve block 5 should be designed such that the second opening 20 and the third opening 21 are higher than the first opening 19, and the internal oil passage design should conform to the principle that the second opening 20 and the third opening 21 are higher and the first opening 19 is lower, so as to ensure the smooth operation of self-draining oil and air replacement.

[0058] 4. The air inside the oil tank 4 can freely exchange with the atmosphere and can freely enter the oil drain line. The first valve is located at the top of the oil tank 4 and is equipped with an air filter. At the same time, the oil return port is designed at the top of the oil tank 4, so that the lubrication system can be connected to the atmosphere.

[0059] 5. The relief valve 23 is used as a safety valve. When the system pressure reaches the set pressure, the relief valve 23 opens to release oil, thereby limiting the pressure from rising further.

[0060] Secondly, this application also provides a control method for a cone crusher lubrication system, the control method including: Obtain the startup command; The drive pump 12 is activated and the first valve is closed according to the start command; Obtain the stop command; The drive pump 12 is shut down and the first valve is opened according to the stop command.

[0061] In this embodiment, when the cone crusher 1 is working, a start command is received, the drive pump 12 is started, the first valve is closed, and the drive pump 12 delivers the lubricating oil in the oil tank 4 to the second oil circuit 7. The second oil circuit 7 is connected to the third oil circuit 8. The lubricating oil passes through the third oil circuit 8 and the heat dissipation inlet 10 of the radiator 9, and then is output from the heat dissipation outlet 11 of the radiator 9, and then enters the lubricating oil inlet 2 of the cone crusher 1, and then flows back to the oil tank 4. A stop command is received, and after the cone crusher 1 stops working, the drive pump 12 is closed, the first valve is opened, the radiator 9 is higher than the valve block 5, the valve block 5 is higher than the oil tank 4, and the lubricating oil in the system (mainly the lubricating oil in the radiator) returns to the oil tank 4 under the action of gravity. Air fills the components and pipelines in the lubrication system, and the lubricating oil in the system is replaced by air. When the cone crusher 1 is restarted, there is air in the system. When the drive pump 12 is started, the lubricating oil compresses the air in the system. The air is compressed, and the pressure of the lubricating oil on the components and pipelines is buffered, which can prevent the instantaneous excessive oil pressure when the drive pump 12 is started from damaging the radiator 9 and the pipelines.

[0062] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended application.

Claims

1. A lubrication system for a cone crusher, wherein the cone crusher (1) is provided with a lubricating oil inlet (2) and a lubricating oil outlet (3), characterized in that, The lubrication system includes: The fuel tank (4) is equipped with a first valve; The valve block (5) is provided with a first oil passage (6) and a second oil passage (7) and a third oil passage (8) that are interconnected. The second oil passage (7) is connected to the oil tank (4). An overflow valve (23) is connected between the first oil passage (6) and the second oil passage (7). The first oil passage (6) is connected to the oil tank (4). Radiator (9), the heat dissipation inlet (10) of the radiator (9) is connected to the third oil passage (8), and the heat dissipation outlet (11) of the radiator (9) is connected to the lubricating oil inlet (2). A drive pump (12) is installed between the oil tank (4) and the second oil circuit (7); In the vertical direction (X), the radiator (9) is higher than the valve block (5), and the valve block (5) is higher than the oil tank (4).

2. The lubrication system for a cone crusher according to claim 1, characterized in that, It also includes a second valve (13), which is disposed between the first oil passage (6) and the second oil passage (7).

3. The lubrication system for a cone crusher according to claim 2, characterized in that, The second valve (13) is a solenoid valve or a manual valve.

4. The lubrication system for a cone crusher according to claim 1, characterized in that, The oil tank (4) is connected to the second oil circuit (7) through the first oil pipe (14), and the drive pump (12) is installed on the first oil pipe (14).

5. The lubrication system for a cone crusher according to claim 4, characterized in that, It also includes a filter (15) which is disposed on the first oil pipe (14) and located between the drive pump (12) and the second oil passage (7).

6. The lubrication system for a cone crusher according to claim 5, characterized in that, It also includes a one-way valve (16) which is installed on the first oil pipe (14), and the drive pump (12) delivers lubricating oil to the second oil circuit (7).

7. The lubrication system for a cone crusher according to claim 1, characterized in that, The heat dissipation outlet (11) of the radiator (9) is connected to the oil tank (4) through the second oil pipe (17), and a flow stabilizing valve (18) is provided on the second oil pipe (17).

8. The lubrication system for a cone crusher according to claim 7, characterized in that, The first oil passage (6) is connected to the second oil passage (17) through the third oil pipe (22).

9. The lubrication system for a cone crusher according to claim 1, characterized in that, The valve block (5) has a first opening (19), a second opening (20) and a third opening (21). The first opening (19) is connected to the first oil passage (6), the second opening (20) is connected to the second oil passage (7), and the third opening (21) is connected to the third oil passage (8). Along the vertical direction (X), the second opening (20) is higher than the third opening (21), and the third opening (21) is higher than the first opening (19).

10. A control method, characterized in that, The control method, applied to the lubrication system of a cone crusher according to any one of claims 1 to 9, comprises: Obtain the startup command; The drive pump (12) is turned on and the first valve is closed according to the start command; Obtain the stop command; The drive pump (12) is shut down and the first valve is opened according to the stop command.

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