A rocker shaft durability improving device

Abstract

The application relates to the technical field of rocker shaft machining, and discloses a rocker shaft durability improving device, which comprises a rack, a heating assembly arranged on one side of the rack, a cooling liquid supply mechanism arranged on the other side of the rack, a conveying belt arranged on the upper side of the rack, and a plurality of rocker shaft hangers arranged on the conveying belt and comprising connecting seats. The rocker shaft hangers are used for fixing workpieces, the cooling mechanism and the rocker shaft adjusting mechanism are arranged on the rocker shaft hangers, the heating assembly and the cooling liquid supply mechanism are arranged on the side edges of the rack, the cooling liquid supply mechanism supplies cooling liquid to the cooling mechanism, the stirring mechanism works as the cooling liquid enters, the rocker shaft station is adjusted through the linkage between the stirring mechanism and the rocker shaft adjusting mechanism, the degree of automation is good, the cooling mechanism is arranged, the rocker shaft can be automatically cooled after heating, and the safety is good.

Description

Technical Field

[0001] This invention relates to the field of rocker arm shaft processing technology, specifically to a device for improving the durability of rocker arm shafts. Background Technology

[0002] A rocker arm shaft, as the name suggests, is a shaft used to fix a rocker arm. Conventional rocker arm shafts are generally cylindrical. To facilitate fixing with other structures, the end of the rocker arm shaft is often equipped with a fixing lug, which has a fixing hole. Heat treatment is a commonly used process to improve the durability of metal parts. Depending on the process, there are two types: overall heat treatment and local heat treatment. Overall heat treatment involves heating and cooling the entire workpiece to improve its overall durability. Local heat treatment involves heat treating a specific area of ​​the workpiece to improve the durability of that specific area.

[0003] For rocker arm shafts with fixed holes, the fixed holes often need to be heat-treated to improve their wear resistance. The conventional method is to manually adjust the position of the workpiece to align it with the heating device. Then, the heating device operates, and under the push of the cylinder, the high-frequency electromagnetic induction heater extends into the fixed hole to heat the periphery of the fixed hole. After heating, the worker puts the workpiece into the coolant to cool it down. After cooling, the workpiece is removed. This method has a low degree of automation, and the processing efficiency is greatly affected by the worker's skill level. Moreover, burns are prone to occur during the heating process, resulting in poor safety. Summary of the Invention

[0004] This invention provides a device for improving the durability of rocker arm shafts, which has the advantages of high automation and good safety. It solves the problems mentioned in the background art of conventional rocker arm shaft heat treatment methods, which require manual positioning and cooling of the workpiece, resulting in low automation and low safety.

[0005] The present invention provides the following technical solution: a device for improving the durability of rocker arm shafts, including a frame, a heating component on one side of the frame, a coolant supply mechanism on the other side of the frame, a conveyor belt on the upper side of the frame, and a plurality of rocker arm shaft hangers on the conveyor belt, each rocker arm shaft hanger including a connecting seat, one end of the connecting seat being fixedly connected to the rocker arm shaft hanger, and a first hanging rod on one side of the connecting seat;

[0006] A cooling mechanism is provided on the other side of the connecting seat. The cooling mechanism includes a liquid distribution seat, which is fixedly connected to the connecting seat. The liquid distribution seat is a hollow structure, and a liquid inlet is provided on the side of the liquid distribution seat away from the connecting seat. A first spray cooling pipe and a second spray cooling pipe are movably provided on the side of the liquid distribution seat close to the connecting seat. A rocker arm shaft adjustment mechanism is provided at the end of the connecting seat close to the conveyor belt.

[0007] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, the rocker arm shaft adjustment mechanism includes a lever and an adjustment block. The lever is elastically connected to the connecting seat via a torsion spring. The adjustment block is located on one side of the lever and is elastically connected to the connecting seat via a first spring. One side of the adjustment block is provided with an extension protrusion, and one end of the extension protrusion abuts against the lever. The middle of the connecting seat is provided with an opening for the lever to pass through.

[0008] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, wherein: one end of the liquid distribution seat is provided with a feeding mechanism, and the feeding mechanism includes a cylinder, the piston is elastically connected to the cylinder through a first return spring, the end of the cylinder away from the liquid distribution seat is provided with an adjusting rod, one end of the adjusting rod passes through the cylinder and is fixedly connected to the piston, one end of the adjusting rod is provided with a paddle block, the paddle block is elastically connected to the adjusting rod through a second spring, and the position of the paddle block is opposite to the adjusting block.

[0009] As an optional solution of the rocker arm shaft durability improvement device of the present invention, wherein: the liquid distribution seat is provided with a flow gathering groove, one end of the flow gathering groove is connected to the liquid inlet, and the other end of the flow gathering groove is provided with a first flow channel and a second flow channel, the first flow channel is connected to the first spray cooling pipe, and the second flow channel is connected to the second spray cooling pipe.

[0010] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, wherein: a flow direction adjustment plate is provided at one end of the flow collection tank away from the liquid inlet, and the flow direction adjustment plate is slidably connected to the liquid distribution seat.

[0011] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, wherein: a transmission plate for adjusting the flow direction adjustment plate is provided on one side of the connecting seat, and the transmission plate is elastically connected to the liquid distribution seat through a fourth spring, the transmission plate is fixedly connected to the flow direction adjustment plate through a connecting rod, and an extension column is provided at one end of the transmission plate, and a guide rod is provided on the side of the connecting seat away from the liquid distribution seat.

[0012] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, the first spray cooling pipe and the second spray cooling pipe are both slidably connected to the liquid distribution seat, and spray holes are arranged around the pipe body of the first spray cooling pipe and the second spray cooling pipe. A limiting block is provided at the end of the first spray cooling pipe. One end of the limiting block is triangular, and the limiting block is elastically connected to the first spray cooling pipe through a first return spring.

[0013] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, wherein: the end of the first hanging rod is provided with a tapered limiting block, and the tapered limiting block is elastically connected to the first hanging rod through a second return spring.

[0014] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, the coolant supply mechanism includes a base, the base being slidably connected to the frame via a second return spring, and a supply pipe being provided on one side of the base, and an electric push rod being provided on the base for pushing the supply pipe to move.

[0015] As an optional embodiment of the rocker arm shaft durability improvement device of the present invention, the heating assembly includes a first heating unit and a second heating unit. The first heating unit includes a first cylinder, and a first high-frequency induction heater is provided on the piston rod of the first cylinder. The second heating unit includes a second cylinder, and a second high-frequency induction heater is provided on the piston rod of the second cylinder.

[0016] The present invention has the following beneficial effects:

[0017] 1. The device for improving the durability of a rocker arm shaft includes a rocker arm shaft hanger, which includes a connecting seat and a first hanging rod on the connecting seat. In use, one end of the rocker arm shaft is first hung on the first hanging rod, and then the conveyor belt moves the rocker arm shaft hanger to the first heating unit. The first heating unit heats the fixing hole at the end of the rocker arm shaft away from the first hanging rod. After heating is completed, the first spray cooling pipe extends and the coolant is sprayed out through the spray hole to cool the rocker arm shaft.

[0018] A material feeding mechanism is provided at the cooling mechanism. As the coolant enters, the material feeding mechanism is linked with the rocker arm shaft adjustment mechanism, which in turn causes the rocker arm shaft adjustment mechanism to work. Under the push of the rocker arm shaft adjustment mechanism, the rocker arm shaft slides along the first hanging rod and the first spray cooling pipe. The length of the first spray cooling pipe is longer than the first hanging rod. Therefore, as the rocker arm shaft moves, one end of it separates from the first hanging rod, and then the other end rotates around the first spray cooling pipe. At this time, the end that was originally facing upward and has not been heated changes to facing downward as the rocker arm shaft rotates, and its position is opposite to the second spray cooling pipe. The conveyor belt drives the rocker arm shaft hanging part to move to the second heating unit, and the other end of the rocker arm shaft is heated by the second heating unit. Then the coolant supply mechanism supplies coolant again, and the second spray cooling pipe extends into the fixed hole to spray and cool the hole wall of the fixed hole. After the cooling is completed, the coolant supply mechanism separates from the rocker arm shaft hanging part, and the workpiece moves to the next station under the drive of the conveyor belt.

[0019] This technical solution uses a rocker arm shaft hanger to fix the workpiece. The rocker arm shaft hanger is equipped with a cooling mechanism and a rocker arm shaft adjustment mechanism. Correspondingly, a heating component and a coolant supply mechanism are provided on the side of the frame. When the coolant supply mechanism supplies coolant into the cooling mechanism, the entry of coolant can cause the material feeding mechanism to work. Through the linkage between the material feeding mechanism and the rocker arm shaft adjustment mechanism, the rocker arm shaft position can be adjusted, resulting in a high degree of automation. By setting up a cooling mechanism, the rocker arm shaft can be automatically cooled after heating, ensuring good safety.

[0020] 2. This device for improving the durability of a rocker arm shaft includes a material feeding mechanism comprising a cylinder, one end of which is connected to a flow-collecting tank. A piston is located inside the cylinder. When coolant enters the flow-collecting tank, it enters the cylinder. Driven by the coolant, the piston overcomes the resistance of the first return spring and moves. Driven by the piston, the adjusting rod moves. As the adjusting rod moves, one end of the shift block abuts against the inclined end of the adjusting block. At this time, the shift block overcomes the resistance of the second spring and moves to avoid the adjusting block. When the coolant supply stops, the piston returns to its original position under the pull of the first return spring. The adjusting rod moves synchronously with the shift block. At this time, the shift block abuts against the inclined end of the adjusting block. Driven by the shift block, the adjusting block overcomes the resistance of the first spring and moves. Driven by the adjusting block, the extended protrusion pushes the shift rod to deflect. One end of the shift rod abuts against the rocker arm shaft. As the shift rod deflects, the rocker arm shaft moves horizontally, and then one end of it disengages from the first hanging rod, thus completing the adjustment of the rocker arm shaft position.

[0021] This invention features a liquid distribution seat with a feeding mechanism. The liquid pressure generated during liquid supply drives the feeding mechanism, which in turn causes the rocker arm shaft adjustment mechanism to move. The rocker arm shaft adjustment mechanism allows for adjustment of the rocker arm shaft's position. When cooling a heated workpiece, the linkage between the cooling mechanism and the feeding mechanism indirectly drives the rocker arm shaft adjustment mechanism, thereby achieving the purpose of adjusting the rocker arm shaft's position. This invention is more convenient and energy-efficient.

[0022] 3. This device for improving the durability of rocker arm shafts includes a liquid distribution seat with a flow direction adjustment plate. The flow direction adjustment plate has a through hole that matches the inlet of the second flow channel. Under normal circumstances, the flow direction adjustment plate covers the second flow channel, while the first flow channel is exposed. When liquid is supplied, the liquid can only enter the first flow channel and the first spray cooling pipe. When the rocker arm shaft rotates around the first spray cooling pipe, its free end will abut against the extension column, which will cause the extension column, transmission plate, and connecting rod to move. Under the pull of the connecting rod, the flow direction adjustment plate moves. At this time, the second flow channel is aligned with the through hole, and the first flow channel is covered. When liquid is supplied again, the coolant can only enter the second flow channel and the second spray cooling pipe.

[0023] This application sets up a liquid distribution seat with a transmission plate and a flow direction adjustment plate. During the process of changing work positions, the workpiece will rotate around the first spray cooling pipe as the axis. During normal operation, the free end of the workpiece will abut against the extension column and the transmission plate, which will cause the connecting rod and the flow direction adjustment plate to move, so as to achieve the purpose of adjusting the flow direction of the cooling mechanism, making it more convenient to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the rocker arm shaft hanger structure of the present invention.

[0026] Figure 3 This is a side view of the rocker arm shaft bracket of the present invention.

[0027] Figure 4 This is a schematic diagram of the connector structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the internal structure of the liquid separator of the present invention.

[0029] Figure 6 This is a schematic diagram of the internal structure of the flow-gathering channel of the present invention.

[0030] Figure 7 This is a schematic diagram of the internal structure of the first spray cooling pipe of the present invention.

[0031] Figure 8 This is a schematic diagram of the internal structure of the first hanging rod of the present invention.

[0032] In the diagram: 1. Frame; 2. Conveyor belt; 3. Rocker arm shaft hanger; 4. Connecting seat; 401. First hanging rod; 402. Opening; 403. Conical limiting block; 404. Second return spring; 5. Liquid distribution seat; 501. Liquid inlet; 502. Flow concentrator; 503. First flow channel; 504. Second flow channel; 505. Flow direction adjusting plate; 6. First spray cooling pipe; 7. Second spray cooling pipe; 8. Cylinder; 801. Piston; 802. First return spring; 803. Adjusting rod; 804. Paddle 9. Block; 10. Lever; 11. Adjusting block; 12. Extension protrusion; 13. Torsion spring; 14. First spring; 15. Transmission plate; 16. Extension column; 17. Fourth spring; 18. Connecting rod; 19. Guide rod; 20. Spray hole; 21. Limiting block; 22. First return spring; 23. Base; 24. Second return spring; 25. Liquid supply pipe; 26. Electric push rod; 27. First cylinder; 28. First high-frequency induction heater; 29. ​​Second cylinder; 20. Second high-frequency induction heater. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figures 1 to 8 The present invention discloses a device for improving the durability of rocker arm shafts, including a frame 1, a heating component on one side of the frame 1, and a coolant supply mechanism on the other side of the frame 1. A conveyor belt 2 is provided on the upper side of the frame 1, and a plurality of rocker arm shaft hangers 3 are provided on the conveyor belt 2. Each rocker arm shaft hanger 3 includes a connecting seat 4, one end of the connecting seat 4 is fixedly connected to the rocker arm shaft hanger 3, and a first hanging rod 401 is provided on one side of the connecting seat 4.

[0036] A cooling mechanism is provided on the other side of the connecting seat 4. The cooling mechanism includes a liquid distribution seat 5, which is fixedly connected to the connecting seat 4. The liquid distribution seat 5 is a hollow structure, and a liquid inlet 501 is provided on the side of the liquid distribution seat 5 away from the connecting seat 4. A first spray cooling pipe 6 and a second spray cooling pipe 7 are movably provided on the side of the liquid distribution seat 5 close to the connecting seat 4. A rocker arm shaft adjustment mechanism is provided at the end of the connecting seat 4 close to the conveyor belt 2.

[0037] The rocker arm shaft adjustment mechanism includes a lever 9 and an adjustment block 10. The lever 9 is elastically connected to the connecting seat 4 via a torsion spring 11. The adjustment block 10 is located on one side of the lever 9 and is elastically connected to the connecting seat 4 via a first spring 12. One side of the adjustment block 10 is provided with an extension protrusion 1001, and one end of the extension protrusion 1001 abuts against the lever 9. The middle part of the connecting seat 4 is provided with an opening 402 for the lever 9 to pass through.

[0038] By setting the rocker arm shaft hanger 3, this device uses a hanging method to hang the rocker arm shaft. The rocker arm shaft hanger 3 is fixed on the conveyor belt 2 and can move between various workstations under the drive of the conveyor belt 2. Specifically, the rocker arm shaft hanger 3 includes a connecting seat 4, on which a first hanging rod 401 is provided. In use, one end of the rocker arm shaft is first hung on the first hanging rod 401. Then the conveyor belt 2 drives the rocker arm shaft hanger 3 to move to the first heating unit. The first heating unit heats the fixing hole at the end of the rocker arm shaft away from the first hanging rod 401. After heating is completed, the coolant supply mechanism supplies coolant to the cooling mechanism. Under the push of the coolant, the first spray cooling pipe 6 extends out. As the first spray cooling pipe 6 moves, one end of it is inserted into the fixing hole, and the coolant is sprayed out through the spray hole 17 to cool the rocker arm shaft.

[0039] Subsequently, the coolant supply mechanism stops supplying coolant. A feeding mechanism is installed at the cooling mechanism. As coolant enters, the feeding mechanism is linked with the rocker arm shaft adjustment mechanism, which in turn causes the rocker arm shaft adjustment mechanism to operate. Driven by the rocker arm shaft adjustment mechanism, the rocker arm shaft slides along the first hanging rod 401 and the first spray cooling pipe 6. The length of the first spray cooling pipe 6 is longer than the first hanging rod 401. Therefore, as the rocker arm shaft moves, one end separates from the first hanging rod 401, and then the other end rotates around the first spray cooling pipe 6 as an axis. The end that was originally facing upward and had not been heated becomes downward as the rocker arm shaft rotates, and its position is opposite to the second spray cooling pipe 7. The conveyor belt 2 moves the rocker arm shaft hanger 3 to the second heating unit, and the other end of the rocker arm shaft is heated by the second heating unit. Then the coolant supply mechanism supplies coolant again, and the second spray cooling pipe 7 extends into the fixing hole to spray and cool the hole wall. After the cooling is completed, the coolant supply mechanism separates from the rocker arm shaft hanger 3, and the workpiece moves to the next station under the drive of the conveyor belt 2.

[0040] This technical solution uses a rocker arm shaft hanger 3 to fix the workpiece. The rocker arm shaft hanger 3 is equipped with a cooling mechanism and a rocker arm shaft adjustment mechanism. Correspondingly, a heating component and a coolant supply mechanism are provided on the side of the frame 1. When the coolant supply mechanism supplies coolant into the cooling mechanism, the entry of coolant can cause the material feeding mechanism to work. Through the linkage between the material feeding mechanism and the rocker arm shaft adjustment mechanism, the rocker arm shaft position can be adjusted, resulting in a high degree of automation. By setting up a cooling mechanism, the rocker arm shaft can be automatically cooled after heating, ensuring good safety.

[0041] Example 2

[0042] This embodiment is an explanation based on Embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 One end of the liquid distribution seat 5 is provided with a feeding mechanism, which includes a cylinder 8 and a piston 801 inside the cylinder 8. The piston 801 is elastically connected to the cylinder 8 through a first return spring 802. The end of the cylinder 8 away from the liquid distribution seat 5 is provided with an adjusting rod 803. One end of the adjusting rod 803 passes through the cylinder 8 and is fixedly connected to the piston 801. One end of the adjusting rod 803 is provided with a toggle block 804. The toggle block 804 is elastically connected to the adjusting rod 803 through a second spring 805, and the position of the toggle block 804 is opposite to the adjusting block 10.

[0043] The liquid distribution seat 5 is provided with a flow-gathering groove 502. One end of the flow-gathering groove 502 is connected to the liquid inlet 501, and the other end of the flow-gathering groove 502 is provided with a first flow channel 503 and a second flow channel 504. The first flow channel 503 is connected to the first spray cooling pipe 6, and the second flow channel 504 is connected to the second spray cooling pipe 7.

[0044] The flow regulating plate 505 is provided at the end of the flow collection tank 502 away from the liquid inlet 501, and the flow regulating plate 505 is slidably connected to the liquid distribution seat 5.

[0045] A transmission plate 13 for adjusting the flow direction adjustment plate 505 is provided on one side of the connecting seat 4. The transmission plate 13 is elastically connected to the liquid distribution seat 5 through the fourth spring 14. The transmission plate 13 is fixedly connected to the flow direction adjustment plate 505 through the connecting rod 15. An extension column 1301 is provided at one end of the transmission plate 13. A guide rod 16 is provided on the side of the connecting seat 4 away from the liquid distribution seat 5.

[0046] The feeding mechanism includes a cylinder 8, one end of which is connected to a flow-gathering tank 502. A piston 801 is installed inside the cylinder 8. When coolant enters the flow-gathering tank 502, it also enters the cylinder 8. Driven by the coolant, the piston 801 overcomes the resistance of the first return spring 802 and moves. Driven by the piston 801, the adjusting rod 803 moves. As the adjusting rod 803 moves, one end of the feeding block 804 abuts against the inclined end of the adjusting block 10. At this time, the feeding block 804 overcomes the resistance of the second spring 805 to move away from the adjusting block 10. When the coolant supply stops... Afterwards, piston 801 returns to its original position under the pull of the first return spring 802, and adjusting rod 803 moves synchronously with paddle block 804. At this time, paddle block 804 abuts against the inclined end of adjusting block 10. Under the pull of paddle block 804, adjusting block 10 overcomes the resistance of the first spring 12 and moves. Under the pull of adjusting block 10, extension protrusion 1001 pushes paddle 9 to deflect. One end of paddle 9 abuts against rocker arm shaft. As paddle 9 deflects, rocker arm shaft moves horizontally, and then one end of it disengages from the first hanging rod 401, thus completing the adjustment of rocker arm shaft position.

[0047] The liquid distribution seat 5 is provided with a first flow channel 503 and a second flow channel 504, which are respectively connected to the first spray cooling pipe 6 and the second spray cooling pipe 7. Correspondingly, the flow convergence tank 502 is provided with a flow direction adjustment plate 505 for adjusting the first flow channel 503 and the second flow channel 504. The flow direction adjustment plate 505 has a through hole that matches the inlet of the second flow channel 504. Under normal circumstances, the flow direction adjustment plate 505 covers the second flow channel 504, and the first flow channel 503 is exposed. At this time, when the liquid is supplied, the liquid can only enter the first flow channel 503 and the first spray cooling pipe 6. When the rocker arm shaft rotates around the first spray cooling pipe 6, its free end will abut against the extension column 1301, which will cause the extension column 1301, the transmission plate 13, and the connecting rod 15 to move. Under the pull of the connecting rod 15, the liquid flows to the adjusting plate 505. At this time, the second flow channel 504 is aligned with the through hole, and the first flow channel 503 is blocked. When the liquid is supplied again, the coolant can only enter the second flow channel 504 and the second spray cooling pipe 7.

[0048] This application sets up a liquid distribution seat 5 with a transmission plate 13 and a flow direction adjustment plate 505. During the process of changing work positions, the workpiece will rotate around the first spray cooling pipe 6 as the axis. During normal operation, the free end of the workpiece will abut against the extension column 1301 and the transmission plate 13, which will cause the connecting rod 15 and the flow direction adjustment plate 505 to move, so as to achieve the purpose of adjusting the flow direction of the cooling mechanism, making it more convenient to use.

[0049] Since the rocker arm shaft needs to deflect from a specific direction in order to cause the extension column 1301 and the transmission plate 13 to move, a guide rod 16 is provided on one side of the connecting seat 4. Correspondingly, an inclined surface is provided at one end of the rocker arm shaft. The end of the rocker arm shaft with the inclined surface rests on the guide rod 16. In this way, when the rocker arm shaft is separated from the first hanging rod 401, it will deflect according to the preset deflection angle.

[0050] Example 3

[0051] This embodiment is an explanation based on Embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 The first spray cooling pipe 6 and the second spray cooling pipe 7 are slidably connected to the liquid distribution seat 5, and spray holes 17 are arranged around the pipe body of the first spray cooling pipe 6 and the second spray cooling pipe 7. The end of the first spray cooling pipe 6 is provided with a limiting block 18. One end of the limiting block 18 is triangular, and the limiting block 18 is elastically connected to the first spray cooling pipe 6 through the first return spring 19.

[0052] The end of the first hanging rod 401 is provided with a tapered limiting block 403, and the tapered limiting block 403 is elastically connected to the first hanging rod 401 through a second return spring 404.

[0053] The coolant supply mechanism includes a base 20, which is slidably connected to the frame 1 via a second return spring 21. A supply pipe 22 is provided on one side of the base 20, and an electric push rod 23 is provided on the base 20 for pushing the supply pipe 22 to move.

[0054] The heating assembly includes a first heating unit and a second heating unit. The first heating unit includes a first cylinder 24, and a first high-frequency induction heater 25 is provided on the piston rod of the first cylinder 24. The second heating unit includes a second cylinder 26, and a second high-frequency induction heater 27 is provided on the piston rod of the second cylinder 26.

[0055] The end of the first spray cooling pipe 6 is provided with a limiting block 18. The presence of the limiting block 18 can limit the rocker arm shaft and prevent it from separating from the first spray cooling pipe 6 during processing. The end of the first hanging rod 401 is provided with a conical limiting block 403. The conical limiting block 403 also serves to limit the rocker arm shaft. The difference is that the conical limiting block 403 can be pressed into the first hanging rod 401 by applying force from both the positive and negative directions. The limiting effect of the conical limiting block 403 is relatively weak.

[0056] The base 20 is slidably connected to the frame 1 via the second return spring 21. An electric push rod 23 is provided on the base 20. A liquid supply pipe 22 is provided on the push rod of the electric push rod 23. The liquid supply pipe 22 is connected to a water source. One end is provided with an interface that fits into the liquid inlet 501. Under the push of the electric push rod 23, the interface is inserted into the liquid inlet 501. Then the rocker arm shaft hanger 3 moves between the two heating units, and the coolant supply mechanism also moves synchronously with it under the drive of the rocker arm shaft hanger 3.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for improving the durability of a rocker arm shaft, comprising a frame, characterized in that: A heating component is provided on one side of the frame, and a coolant supply mechanism is provided on the other side of the frame. A conveyor belt is provided on the upper side of the frame, and several rocker arm shaft hangers are provided on the conveyor belt. Each rocker arm shaft hanger includes a connecting seat, one end of which is fixedly connected to the rocker arm shaft hanger, and a first hanging rod is provided on one side of the connecting seat. A cooling mechanism is provided on the other side of the connecting seat. The cooling mechanism includes a liquid distribution seat, which is fixedly connected to the connecting seat. The liquid distribution seat is a hollow structure, and an inlet is provided on the side of the liquid distribution seat away from the connecting seat. A first spray cooling pipe and a second spray cooling pipe are movably provided on the side of the liquid distribution seat close to the connecting seat. A rocker arm shaft adjustment mechanism is provided at the end of the connecting seat close to the conveyor belt. The rocker arm shaft adjustment mechanism includes a lever and an adjustment block. The lever is elastically connected to the connecting seat via a torsion spring. The adjustment block is located on one side of the lever and is elastically connected to the connecting seat via a first spring. One side of the adjustment block has an extension protrusion, and one end of the extension protrusion abuts against the lever. The middle of the connecting seat has an opening for the lever to pass through. One end of the liquid separator is provided with a feeding mechanism, which includes a cylinder and a piston inside the cylinder. The piston is elastically connected to the cylinder through a first return spring. The end of the cylinder away from the liquid separator is provided with an adjusting rod. One end of the adjusting rod passes through the cylinder and is fixedly connected to the piston. One end of the adjusting rod is provided with a paddle block. The paddle block is elastically connected to the adjusting rod through a second spring, and the position of the paddle block is opposite to the adjusting block. The liquid separator is equipped with a flow-gathering groove. One end of the flow-gathering groove is connected to the liquid inlet nozzle, and the other end of the flow-gathering groove is equipped with a first flow channel and a second flow channel. The first flow channel is connected to the first spray cooling pipe, and the second flow channel is connected to the second spray cooling pipe. A flow direction regulating plate is provided at the end of the flow collection tank away from the liquid inlet, and the flow direction regulating plate is slidably connected to the liquid distribution seat; A transmission plate for adjusting the flow direction adjustment plate is provided on one side of the connecting seat. The transmission plate is elastically connected to the liquid distribution seat through a fourth spring. The transmission plate is fixedly connected to the flow direction adjustment plate through a connecting rod. An extension column is provided at one end of the transmission plate. A guide rod is provided on the side of the connecting seat away from the liquid distribution seat.

2. The device for improving the durability of a rocker arm shaft according to claim 1, characterized in that: Both the first and second spray cooling pipes are slidably connected to the liquid distribution seat, and spray holes are arranged around the pipe body of both the first and second spray cooling pipes. A limiting block is provided at the end of the first spray cooling pipe. One end of the limiting block is triangular, and the limiting block is elastically connected to the first spray cooling pipe through a first return spring.

3. The device for improving the durability of a rocker arm shaft according to claim 2, characterized in that: The end of the first hanging rod is provided with a tapered limiting block, and the tapered limiting block is elastically connected to the first hanging rod through a second return spring.

4. The device for improving the durability of a rocker arm shaft according to claim 1, characterized in that: The coolant supply mechanism includes a base, which is slidably connected to the frame via a second return spring. A supply pipe is provided on one side of the base, and an electric push rod for moving the supply pipe is provided on the base.

5. The device for improving the durability of a rocker arm shaft according to claim 1, characterized in that: The heating assembly includes a first heating unit and a second heating unit. The first heating unit includes a first cylinder, and a first high-frequency induction heater is provided on the piston rod of the first cylinder. The second heating unit includes a second cylinder, and a second high-frequency induction heater is provided on the piston rod of the second cylinder.

Images