Gear abrasion resistance detection equipment for precision gear production

Abstract

The invention discloses gear abrasion resistance detection equipment for precision gear production, which comprises a supporting seat, the top of the supporting seat is fixedly connected with a workbench, and the workbench is provided with annularly distributed storage grooves for placing precision gears. And lifting mechanisms which are annularly distributed and used for controlling the precise gear to ascend and descend on the inner wall of the containing groove are arranged at the bottom of the workbench, a cavity is formed in the workbench, the cavity is filled with hydraulic liquid, and a first electric push rod fixedly connected with the workbench is inserted into the top of the workbench in a penetrating mode. The device is compact in structure and low in use cost, the pressure value between the grinding ball and the gear can be automatically controlled, the pressure values of the grinding ball on the gears tested in the same batch are the same, the gear abrasion resistance detection accuracy is further improved, the pressure value between the gear and the grinding ball can be adjusted, the pressure value between the grinding ball and the gear is stable, and the gear abrasion resistance detection accuracy is improved. And the accuracy of detecting different batches of gears is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wear resistance testing equipment, and more specifically, to a gear wear resistance testing equipment for precision gear production. Background Art

[0002] The gear wear resistance testing equipment used in precision gear production is usually a wear testing machine, which simulates the wear process of the gear under actual working conditions by wearing the gear surface (not the teeth) to evaluate the wear resistance of the gear material.

[0003] When testing the wear resistance of various precision gears, grinding balls or grinding blocks are usually used to perform wear tests on the gears. In the initial state, the pressure between the grinding balls and each precision gear is the same, thereby ensuring the fairness of the test. However, during the test, the gears and grinding balls will experience varying degrees of wear. At this time, the pressure of the grinding balls on the gears will change. The change in pressure may cause changes in the wear rate and wear pattern, thereby affecting the accuracy of the test results. In order to maintain the same wear pressure value for multiple gears in the same test batch and reduce the impact of pressure changes on wear-resistant pad detection, a gear wear resistance testing device for precision gear production is required. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a gear wear resistance detection device for precision gear production.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: A gear wear resistance testing device for precision gear production comprises a support seat, a workbench is fixedly connected to the top of the support seat, an annular placement groove for placing precision gears is provided on the workbench, an annular lifting mechanism for controlling the lifting of precision gears on the inner wall of the placement groove is provided at the bottom of the workbench, a cavity is provided on the workbench, the cavity is filled with hydraulic fluid, an electric push rod 1 fixedly connected to the top of the workbench is inserted, a pressure plate is fixedly connected to the bottom end of the electric push rod 1, the outer side of the pressure plate is in contact with the inner wall of the cavity, and the pressure plate is in contact with the inner wall of the cavity. The middle pressure plate maintains a sealed state between the two during the movement inside the cavity, the inner wall of the cavity is provided with annular grooves, the inner wall of the groove is slidably connected to a piston plate, the piston plate is fixedly connected to the inner side away from the cavity with a moving block, the inner wall of the groove is provided with a through hole slidably connected to the moving block, the moving block is provided with a grinding mechanism, the inner wall of the storage groove is provided with a clamping mechanism, the inner wall of the cavity is fixedly connected to a pressure sensor for monitoring the internal pressure thereof, a controller is installed on the top of the workbench, and annularly distributed cameras are installed on the support seat.

[0006] As a further description of the above technical solution: The lifting mechanism includes a limit box, which is U-shaped. Two limit grooves are provided on the inner side of the limit box. A lifting block is slidably connected between the two limit grooves. The size of the lifting block is adapted to the storage slot. The shape of the lifting block is trapezoidal. Two electric push rods fixedly connected to the limit box are inserted through the limit box. The top of the two electric push rods is fixedly connected to the lifting block. A material discharge groove is provided on the inner wall of the limit groove on one side.

[0007] As a further description of the above technical solution: The clamping mechanism comprises an electric push rod three, one end of which is inserted into the inner wall of the storage slot and fixedly connected thereto, and one end of which is fixedly connected to a clamping plate.

[0008] As a further description of the above technical solution: The grinding mechanism comprises a motor, which is embedded in the moving block. The output shaft of the motor passes through the moving block and is equipped with grinding balls.

[0009] As a further description of the above technical solution: Two water tanks are provided inside the workbench, and the two water tanks are both annular in shape. The inner walls of the two water tanks are connected with annularly distributed conduits, and one end of the two groups of conduits are connected with through holes. An annularly distributed water box is provided on the outside of the workbench, and the water box is C-shaped. One side of the water box is connected with two water pipes, and the other ends of the two water pipes pass through the workbench and are respectively connected with the two water tanks. A water pump is installed on the water pipe at the bottom, and a filter box is inserted into one side of the water box with a sliding connection therewith, a through groove is provided on one side of the filter box, and a filter plate is embedded on the other side of the filter box.

[0010] As a further description of the above technical solution: The lifting block is a rubber layer, and anti-slip grooves are arranged on the top of the lifting block.

[0011] As a further description of the above technical solution: Three cooling fins are embedded on the outer side of the water box, and the heat absorbing ends of the three cooling fins all penetrate and extend into the interior of the water box.

[0012] As a further description of the above technical solution: A distance sensor is installed on a side of the piston plate away from the cavity, and an output end of the distance sensor is connected to a controller signal.

[0013] Compared with the prior art, the advantages of the present invention are: This solution has a compact structure and low use cost. It can automatically control the pressure value between the grinding ball and the gear, so that the gears tested in the same batch are subjected to the same pressure value from the grinding ball, thereby improving the accuracy of gear wear resistance detection. It can also adjust the pressure value between the gear and the grinding ball to stabilize the pressure value between the grinding ball and the gear, thereby improving the accuracy of detection of gears in different batches. When testing the wear resistance of gears, the positioning, cleaning, heat dissipation and unloading of gears can be achieved, effectively improving the practicality of the device. When completing the gear test, the gear wear condition can be pre-detected, gears with better wear resistance can be automatically unloaded, and gears with wear resistance problems can be subjected to camera image detection, thereby effectively improving the detection efficiency, reducing the use of cameras, saving energy, reducing detection costs, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the three-dimensional diagrams of the present invention; Figure 2 This is the second stereogram of the present invention; Figure 3 The third is a three-dimensional diagram of the present invention; Figure 4 The fourth is a three-dimensional diagram of the present invention; Figure 5 is a cross-sectional view of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of part A in the middle; Figure 7 For the present invention Figure 2 Enlarged view of middle part B; Figure 8 It is a three-dimensional diagram of the lifting mechanism in the present invention.

[0015] Description of the numbers in the figure: 1. Support seat; 2. Workbench; 3. Storage slot; 4. Lifting mechanism; 401. Limit box; 402. Limit slot; 403. Lifting block; 404. Electric push rod 2; 405. Feeding chute; 5. Cavity; 6. Electric push rod 1; 7. Press plate; 8. Groove; 9. Piston plate; 10. Moving block; 11. Through hole; 12. Grinding mechanism; 121. Motor; 122. Grinding ball; 13. Clamping mechanism; 131. Electric push rod 3; 132. Clamping plate; 14. Pressure sensor; 15. Controller; 16. Camera; 17. Sink; 18. Water box; 19. Water pipe; 20. Water pump; 21. Filter box; 22. Filter plate; 23. Refrigeration sheet; 24. Distance sensor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention; It should be noted that the present invention is based on the wear resistance test of the gear disc surface: although the gear disc surface is not directly involved in the meshing, it plays an important role in the installation, positioning and support of the gear. In addition, when the gear is running, the gear disc surface may contact with other components (such as bearings, shafts, etc.) to generate friction; the wear resistance test can ensure that the gear disc surface can still maintain sufficient surface quality and dimensional accuracy after long-term use, avoiding installation problems or performance degradation caused by wear; in view of this, the following scheme is proposed: See also Figure 1-8 In the present invention, a gear wear resistance testing device for precision gear production comprises a support seat 1, a workbench 2 is fixedly connected to the top of the support seat 1, a ring-shaped placement groove 3 for placing precision gears is provided on the workbench 2, a ring-shaped lifting mechanism 4 for controlling the lifting of the precision gears on the inner wall of the placement groove 3 is provided at the bottom of the workbench 2, a cavity 5 is provided on the workbench 2, and the cavity 5 is filled with hydraulic liquid, an electric push rod 6 fixedly connected to the top of the workbench 2 is inserted, and the bottom end of the electric push rod 6 is fixedly connected to the bottom end of the electric push rod 6. There is a pressing plate 7, the outer side of the pressing plate 7 is in contact with the inner wall of the cavity 5, wherein the pressing plate 7 maintains a sealed state between the two during the movement of the pressing plate 7 inside the cavity 5, the inner wall of the cavity 5 is provided with annular grooves 8, the inner wall of the groove 8 is slidably connected with a piston plate 9, the inner side of the piston plate 9 away from the cavity 5 is fixedly connected with a moving block 10, the inner wall of the groove 8 is provided with a through hole 11 slidably connected with the moving block 10, the moving block 10 is provided with a grinding mechanism 12, the inner wall of the storage groove 3 is provided with a clamping mechanism 13, the inner wall of the cavity 5 is fixedly connected with a pair of The pressure sensor 14 is used to monitor the internal pressure, the controller 15 is installed on the top of the workbench 2, and the camera 16 distributed in a ring is installed on the support seat 1; the lifting mechanism 4 includes a limit box 401, the limit box 401 is in a U-shaped configuration, two limit slots 402 are provided on the inner side of the limit box 401, and a lifting block 403 is slidably connected between the two limit slots 402. The size of the lifting block 403 is adapted to the storage slot 3, and the shape of the lifting block 403 is in a trapezoidal configuration. The limit box 401 is interspersed with an electric Push rod 2 404, the top end of the electric push rod 2 404 is fixedly connected to the lifting block 403, and a feeding groove 405 is opened on the inner wall of the limiting groove 402 on one side; the clamping mechanism 13 includes an electric push rod 3 131, one end of the electric push rod 3 131 is inserted into the inner wall of the storage groove 3 and fixedly connected thereto, and one end of the electric push rod 3 131 is fixedly connected to a clamping plate 132; the grinding mechanism 12 includes a motor 121, the motor 121 is embedded in the moving block 10, and the output shaft of the motor 121 passes through the moving block 10 and is installed with a grinding ball 122.

[0017] In the present invention, when the wear resistance of multiple precision gears is tested, the gear is first placed into the storage slot 3, and the gear will slide into the corresponding limit box 401 along the storage slot 3 and contact the limit slot 402 and the lifting block 403. Then, the user can drive the lifting block 403 to move by turning on the electric push rod 2 404, and the lifting block 403 will then drive the gear to slide into the storage slot 3. The position of the gear and the through hole 11 can be adjusted by controlling the height of the lifting block 403. The position corresponding to the gear and the through hole 11 is the position for the gear wear test. After the position of the gear to be tested for wear is adjusted to align with the corresponding through hole 11, the positioning of the gear can be completed. After the gear is positioned, the user turns on the electric push rod 3 131, and the electric push rod 3 131 drives the clamping plate 132 to push the gear to be in close contact with the inner wall of the storage slot 3, thereby completing the clamping of the gear. At this time, the preparation work for the gear is completed; After the gear is clamped, the user turns on the electric push rod 16 to drive the pressure plate 7 to slide along the inner wall of the cavity 5. At this time, the liquid inside the cavity 5 will be squeezed. Under the action of pressure, the liquid will push the piston plate 9 to slide in the corresponding groove 8. During the process, the piston plate 9 will drive the moving block 10 to slide along the inner wall of the through hole 11, and then the grinding ball 122 will contact the gear. As the pressure plate 7 descends, the grinding ball 122 will cause a certain pressure on the gear. The pressure sensor 14 will detect the pressure in the cavity 5, and then determine the pressure between the grinding ball 122 and the gear. The pressure applied to the inside of the cavity 5 by the descending pressure plate 7 will be evenly distributed to each groove 8, so that the pressure between each grinding ball 122 and the gear remains stable. After adjusting the pressure between the gear and the grinding ball 122 to the specified value, the user turns on the motor 121, and the motor 121 drives the grinding ball 122 to rotate to perform a wear test on the gear. During the test, if the gear or the grinding ball 122 is worn, the piston plate 9 will slide a certain distance in the groove 8. Since the volume in the groove 8 will increase after the piston plate 9 moves, the pressure in the cavity 5 will decrease. Although the pressure in the cavity 5 will decrease, the pressure in each groove 8 is still the same. The movement of one piston plate 9 causes the pressure between the grinding ball 122 and the gear to change, and the pressure between the remaining grinding balls 122 and the gear will change accordingly. The pressure change value will be apportioned to each gear and the grinding ball 122, thereby maintaining the same pressure between each grinding ball 122 and the gear, ensuring that each gear is subjected to the same pressure from the grinding ball 122, thereby improving the accuracy of wear resistance detection. After the wear detection, the user reversely turns on the electric push rod 1 6 and the electric push rod 3 131, and the electric push rod 1 6 can indirectly drive the grinding ball 122 away from the gear, and the electric push rod 3 131 will drive the clamping plate 132 away from the gear. At this time, the gear will fall on the top of the lifting block 403, and the electric push rod 2 404 will be turned on in the reverse direction. The electric push rod 2 404 will drive the lifting block 403 to descend, and then the gear will slide from the storage slot 3 into the limit slot 402 on the inner side of the limit box 401. As the lifting block 403 descends, the part of the gear that is tested for wear will face the camera 16. When the camera 16 is turned on, the position of the gear that is tested for wear can be imaged and detected, and then the wear condition of the gear can be determined, thereby determining the wear resistance of the gear. After the gear wear resistance test is completed, the electric push rod 2 404 is turned on. At this time, the gear will continue to descend in the limit box 401 until the top of the gear is lower than the feeding chute 405. Since the lifting block 403 is set in a trapezoidal shape, the gear will roll along the lifting block 403, and then the gear will roll down from the feeding chute 405, thereby completing the feeding of the gear; It should be emphasized that: for example, when the wear resistance of the gears is tested, if one of the gears or the grinding ball 122 is severely worn, multiple gears and the grinding ball 122 may also be severely worn at the same time, and the piston plate 9 in the corresponding groove 8 will move. At this time, the pressure sensor 14 detects that the pressure in the cavity 5 becomes smaller, and the pressure exerted by the grinding ball 122 on the gear will change. The user controls the electric push rod 6 to drive the pressure plate 7 to squeeze the liquid in the cavity 5, thereby achieving the effect of pressure replenishment, which can ensure that each batch of gears is subjected to the same wear effect, thereby improving the practicability of the device.

[0018] See also Figure 1-7 , wherein: two water tanks 17 are provided inside the workbench 2, and the two water tanks 17 are both annular in shape. The inner walls of the two water tanks 17 are connected with annularly distributed conduits, and one end of the two sets of conduits are connected with the through hole 11. An annularly distributed water box 18 is provided on the outside of the workbench 2. The water box 18 is C-shaped, and one side of the water box 18 is connected with two water pipes 19. The other ends of the two water pipes 19 penetrate the workbench 2 and are respectively connected with the two water tanks 17. A water pump 20 is installed on the bottom water pipe 19. A filter box 21 slidably connected to the water box 18 is inserted on one side of the water box 18, and a through groove is provided on one side of the filter box 21, and a filter plate 22 is embedded on the other side of the filter box 21.

[0019] In the present invention, before the wear test is performed, the user turns on the water pump 20, and the water pump 20 pumps the liquid in the bottom water tank 17 into the water box 18, and then the liquid flows from the top water pipe 19 into the top water tank 17, and then the liquid flows from the conduit into the corresponding through hole 11, and the liquid washes the gear surface, thereby preventing the dirt and impurities on the gear surface from affecting the wear resistance test, thereby improving the accuracy of the wear resistance test of the device, and during the process, the rubber ring at the inner wall of the storage tank 3 (reference Figure 6 As shown in the figure, the sealing effect between the storage groove 3 and the gear can be improved, and the leakage of liquid can be reduced. In addition, the liquid can clean up the debris generated by the wear test, thereby preventing the debris from affecting the wear test and further improving the accuracy of the test. The filter plate 22 in the filter box 21 can filter the washed impurities and the debris generated by the wear test, thereby improving the practicality of the device.

[0020] See also Figure 8 , wherein: the lifting block 403 is a rubber layer, and the top of the lifting block 403 is provided with anti-slip grooves.

[0021] In the present invention, the lifting block 403 is a rubber layer, which can effectively reduce the impact force on the lifting block 403 caused by the gear being put into the storage slot 3 and falling, thereby improving the practicality of the device. In addition, the lifting block 403 is a rubber layer, which can effectively increase the friction between the lifting block 403 and the gear, and thus when the lifting block 403 drives the gear to descend, it avoids the gear from contacting the limit slot 402, and the friction force causes the gear to rotate, so that the camera 16 can accurately perform image detection on the gear wear position, thereby improving the practicality of the device.

[0022] See also Figure 7 , wherein: three cooling fins 23 are embedded on the outer side of the water box 18 , and the heat absorbing ends of the three cooling fins 23 all penetrate and extend into the interior of the water box 18 .

[0023] In the present invention, during the wear resistance test, the cooling plate 23 can cool the liquid, and the cooled liquid can enter the through groove and cool the gears, so that the gears are kept at a suitable temperature, avoiding the influence of temperature on the gear wear resistance test, and improving the practicality of the device.

[0024] See also Figure 6 , wherein: a distance sensor 24 is installed on the side of the piston plate 9 away from the cavity 5 , and the output end of the distance sensor 24 is connected to the controller 15 for signal.

[0025] In the present invention, the distance sensor 24 is arranged to detect the distance between the piston plate 9 and the groove 8. If the distance change between the piston plate 9 and the groove 8 before and after the detection is small, it means that the gear has good wear resistance and there is no need to perform shooting detection with the camera 16. If the distance change between the piston plate 9 and the groove 8 is more obvious, it is necessary to perform image detection on the gear to analyze whether the gear is damaged or the grinding ball 122 is damaged, and judge the wear resistance of the gear, thereby effectively reducing the use of the camera 16 and improving the efficiency and energy consumption of the device.

[0026] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear wear resistance testing device for precision gear production, comprising a support seat (1), characterized in that: The top of the support seat (1) is fixedly connected to a workbench (2), the workbench (2) is provided with annular storage grooves (3) for placing precision gears, the bottom of the workbench (2) is provided with annular lifting mechanisms (4) for controlling the lifting of precision gears on the inner wall of the storage grooves (3), the workbench (2) is provided with a cavity (5), the cavity (5) is filled with hydraulic fluid, the top of the workbench (2) is inserted with an electric push rod (6) fixedly connected thereto, the bottom end of the electric push rod (6) is fixedly connected to a pressure plate (7), the outer side of the pressure plate (7) is in contact with the inner wall of the cavity (5), and the pressure plate (7) maintains a close contact with the inner wall of the cavity (5) during the movement of the pressure plate (7) in the cavity (5). In a sealed state, the inner wall of the cavity (5) is provided with annularly distributed grooves (8), the inner wall of the groove (8) is slidably connected to a piston plate (9), the inner side of the piston plate (9) away from the cavity (5) is fixedly connected to a moving block (10), the inner wall of the groove (8) is provided with a through hole (11) slidably connected to the moving block (10), the moving block (10) is provided with a grinding mechanism (12), the inner wall of the storage groove (3) is provided with a clamping mechanism (13), the inner wall of the cavity (5) is fixedly connected to a pressure sensor (14) for monitoring the internal pressure thereof, a controller (15) is installed on the top of the workbench (2), and annularly distributed cameras (16) are installed on the support seat (1).

2. The gear wear resistance testing device for precision gear production according to claim 1, characterized in that: The lifting mechanism (4) comprises a limit box (401), the limit box (401) is in a U-shaped configuration, two limit slots (402) are provided on the inner side of the limit box (401), a lifting block (403) is slidably connected between the two limit slots (402), the size of the lifting block (403) is adapted to the storage slot (3), the shape of the lifting block (403) is in a trapezoidal configuration, a second electric push rod (404) fixedly connected to the limit box (401) is inserted through the limit box (401), the top end of the second electric push rod (404) is fixedly connected to the lifting block (403), and a material discharge slot (405) is provided on the inner wall of the limit slot (402) on one side.

3. The gear wear resistance testing equipment for precision gear production according to claim 1, characterized in that: The clamping mechanism (13) comprises an electric push rod 3 (131), one end of which is inserted into the inner wall of the storage slot (3) and fixedly connected thereto, and one end of which is fixedly connected to a clamping plate (132).

4. The gear wear resistance testing device for precision gear production according to claim 1 is characterized by: The grinding mechanism (12) comprises a motor (121), the motor (121) being embedded in the moving block (10), the output shaft of the motor (121) passing through the moving block (10) and being equipped with grinding balls (122).

5. The gear wear resistance testing equipment for precision gear production according to claim 1, characterized in that: Two water tanks (17) are provided inside the workbench (2). The two water tanks (17) are both annular in shape. The inner walls of the two water tanks (17) are both connected to annularly distributed conduits. One end of the two groups of conduits is connected to the through hole (11). An annularly distributed water box (18) is provided outside the workbench (2). The water box (18) is C-shaped. One side of the water box (18) is connected to two water pipes (19). The other ends of the two water pipes (19) penetrate the workbench (2) and are respectively connected to the two water tanks (17). A water pump (20) is installed on the bottom of the water pipe (19). A filter box (21) slidably connected to the water box (18) is inserted through one side of the water box (18). A through groove is provided on one side of the filter box (21). A filter plate (22) is embedded on the other side of the filter box (21).

6. The gear wear resistance testing device for precision gear production according to claim 2, characterized in that: The lifting block (403) is a rubber layer, and anti-slip grooves are provided on the top of the lifting block (403).

7. The gear wear resistance testing device for precision gear production according to claim 5, characterized in that: Three cooling fins (23) are embedded on the outer side of the water box (18), and the heat absorbing ends of the three cooling fins (23) all penetrate and extend into the interior of the water box (18).

8. The gear wear resistance testing equipment for precision gear production according to claim 1, characterized in that: A distance sensor (24) is installed on the side of the piston plate (9) away from the cavity (5), and an output end of the distance sensor (24) is connected to a controller (15) for signal transmission.

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