A grinding device for forging steel ball aging test

Abstract

The application discloses a kind of grinding devices for forging steel ball aging test, including dynamic constant pressure pre-tightening type belt driving mechanism, flexible rotational speed difference feedback mechanism, steel ball limiting pre-tightening mechanism and simulation impact mechanism.The application belongs to the technical field of steel ball aging test, specifically refers to a kind of grinding devices for forging steel ball aging test;The application proposes flexible rotational speed difference feedback mechanism and steel ball limiting pre-tightening mechanism, the rotational speed difference between coaxially arranged direct linkage idler and multistage transmission idler is used to feedback the skidding condition between steel ball and belt, so as to judge the surface roughness change of steel ball, not only conducive to observation, but also realizes the technical effect of real-time feedback in the process of simulation impact;The application also proposes dynamic constant pressure pre-tightening type belt driving mechanism, so that the driving belt elastic pre-tightening component maintains pre-tightening force in the process of reducing the diameter of steel ball, to avoid the situation that spring force decays due to the decrease of deformation amount.

Description

Technical Field

[0001] This invention belongs to the field of steel ball aging test technology, specifically referring to a grinding device for aging test of forged steel balls. Background Technology

[0002] In the process of precision grinding, special steel balls are often used as grinding media and mixed with materials to crush and grind them.

[0003] Forged steel balls need to frequently collide with materials during operation, thereby breaking the materials into smaller particles. However, since the materials being ground are generally hard, the steel balls will become smaller with use (wear). As we all know, the surface of the steel ball needs to maintain a certain roughness during the grinding process to achieve a good grinding and crushing effect. An overly smooth surface will easily dissipate the impact force (deflect the direction) when impacting the material. The surface roughness of the steel ball is well guaranteed in the initial state, but whether the steel ball can still maintain roughness as its diameter decreases is an important factor in verifying the quality of the steel ball.

[0004] The current conventional verification method is to simulate the working environment of the steel ball using a simulation device. During this process, the steel ball is taken out and its surface is inspected at regular intervals. This method is not only time-consuming and labor-intensive, but also, because it monitors individual feature points, it is not conducive to obtaining accurate, continuous, and complete measurement values, and it is easy to miss feature points.

[0005] Complete test data should be continuous. Therefore, based on the above-mentioned deficiencies, this invention focuses on proposing a grinding device for aging testing of forged steel balls that can continuously measure and provide real-time feedback. Summary of the Invention

[0006] To address the above issues and overcome the shortcomings of existing technologies, this invention proposes a grinding device for aging testing of forged steel balls that can continuously measure and provide real-time feedback. By continuously impacting and grinding the steel ball with suspended steel balls, the actual working conditions of the steel ball are simulated. Since the impact position and the test position of the steel ball are different, the steel ball must simultaneously rotate laterally and longitudinally during the simulation and testing. Therefore, even when there is good rolling contact between the test belt and the steel ball, a certain angle of twisting will occur. It is difficult to observe the difference between twisting and slippage with the naked eye. To overcome this technical challenge, this invention, based on the closed-loop feedback principle, creatively proposes a flexible speed difference feedback mechanism and a steel ball limiting pre-tightening mechanism. The speed difference between the coaxially arranged direct-linkage idler wheel and the multi-stage transmission idler wheel is used to feedback the slippage between the steel ball and the belt, thereby judging the change in the surface roughness of the steel ball. This not only facilitates observation but also achieves the technical effect of real-time feedback during the simulated impact process.

[0007] Since the diameter of the steel ball gradually decreases during the simulated impact, maintaining the preload of the drive belt is a complex technical challenge. To address this, this invention proposes a dynamic constant pressure preload belt drive mechanism. The heat generated by the friction between the belt and the thermally driven piston rod drives the thermally driven pressure holding component to move continuously and slowly. This allows the elastic preload component of the drive belt to maintain the preload as the diameter of the steel ball decreases, preventing the spring from weakening due to the reduction in deformation.

[0008] The technical solution adopted by this invention is as follows: This invention proposes a grinding device for aging testing of forged steel balls, including a dynamic constant pressure pre-tensioning belt drive mechanism, a flexible speed difference feedback mechanism, a steel ball limiting pre-tensioning mechanism, and a simulated impact mechanism. The steel ball limiting pre-tensioning mechanism can limit the steel ball body and maintain the tension of the feedback belt body. The dynamic constant pressure pre-tensioning belt drive mechanism is located on the steel ball limiting pre-tensioning mechanism. It can pre-tension the flexible speed difference feedback mechanism, maintain the contact pressure of the flexible speed difference feedback mechanism on the steel ball body, and prevent the pre-tensioning force from decaying as the diameter of the steel ball body decreases. The flexible speed difference feedback mechanism is located on the steel ball limiting pre-tensioning mechanism. It can feedback the change in friction force on the surface of the steel ball seat, thereby knowing the surface roughness of the steel ball body. The simulated impact mechanism is located on the steel ball limiting pre-tensioning mechanism. It can simulate the mutual impact between the material and the steel ball body and apply a force to the steel ball body to drive its longitudinal rotation.

[0009] Furthermore, the dynamic constant pressure pretensioned belt drive mechanism includes a fixed main drive reference assembly, a heat-driven pressure holding assembly, a guide heat conveying assembly, and a drive belt elastic pretensioning assembly. The fixed main drive reference assembly is disposed on the steel ball limiting pretensioning mechanism, the heat-driven pressure holding assembly is disposed on the steel ball limiting pretensioning mechanism, the guide heat conveying assembly is symmetrically disposed between the fixed main drive reference assembly and the heat-driven pressure holding assembly, and the drive belt elastic pretensioning assembly is symmetrically disposed between the fixed main drive reference assembly and the heat-driven pressure holding assembly.

[0010] Preferably, the fixed main drive reference assembly includes a rotary belt drive motor, a concealed bearing, and a symmetrical cantilever connecting rod. The fixed main drive reference assembly can limit the position of the flexible speed difference feedback mechanism. The rotary belt drive motor is mounted on a steel ball limiting preload mechanism. The concealed bearing is engaged with the rotary belt drive motor via an inner ring. One end of the symmetrical cantilever connecting rod has a cantilever connecting rod end collar. The symmetrical cantilever connecting rod is rotatably mounted on the outer ring of the concealed bearing via the cantilever connecting rod end collar. The concealed bearing itself has low rotational resistance, so when the rotary belt drive motor is driven, the torque output by the rotary belt drive motor will not be transmitted to the symmetrical cantilever connecting rod. The other end of the symmetrical cantilever connecting rod has a cantilever connecting rod end convex shaft. The symmetrical cantilever connecting rod also has a cantilever connecting rod intermediate groove, and the symmetrical cantilever connecting rod has a cantilever connecting rod intermediate hinge portion at the cantilever connecting rod intermediate groove.

[0011] As a further preferred embodiment of the present invention, the heat-driven pressure holding assembly includes a heat-driven assembly mounting bracket, a heat-driven housing, and a heat-driven piston connecting rod. The heat-driven assembly mounting bracket is mounted on a steel ball limiting and pre-tightening mechanism. The heat-driven housing is fixedly connected to the heat-driven assembly mounting bracket. The rear end of the heat-driven housing is provided with a vent hole for gas exchange with the outside environment. The end of the heat-driven housing is provided with a front guide portion. The heat-driven piston connecting rod is engaged and slidably disposed in the front guide portion. The piston of the heat-driven piston connecting rod and the interior of the heat-driven housing are in sliding and sealing contact. The heat-driven housing and the heat-driven piston connecting rod form a sealed cavity. When the heat-driven housing is heated... The gas in the sealed cavity will expand due to heat, further increasing the internal pressure (initially, the internal pressure of the sealed cavity is higher than the external pressure to resist the elastic force of the drive belt pretensioning component). This causes the thermally driven piston connecting rod to continue retracting into the thermally driven housing. The end of the thermally driven piston connecting rod is provided with a connecting rod end boss, and the connecting rod end boss is symmetrically provided with connecting rod boss hinge holes. During the test, the thermally driven piston connecting rod retracts continuously and slowly, which can change the reference position of the drive belt elastic pretensioning component when the diameter of the steel ball body decreases and the symmetrical cantilever connecting rod is displaced, thereby preventing the elastic force of the drive belt elastic pretensioning component from decreasing due to elongation.

[0012] As a further preferred embodiment of the present invention, the guiding heat transfer assembly includes a friction block and an outer-wrap heat-conducting rod. The friction block is fixed to the side of the symmetrical cantilever connecting rod, one end of the outer-wrap heat-conducting rod is fixed to the heat drive housing, and the other end of the outer-wrap heat-conducting rod is in sliding contact with the friction block. When the friction block rubs against the main drive belt body, it increases the heat of the friction block. After the friction block heats up, its own heat can be conducted to the heat drive housing through the outer-wrap heat-conducting rod. The drive belt elastic pretensioning assembly includes a telescopic sleeve and a telescopic rod. The telescopic rod body and telescopic rod pretensioning spring, the drive belt elastic pretensioning assembly has the function of supporting the symmetrical cantilever connecting rod and continuously providing pretensioning force for the flexible speed difference feedback mechanism. The telescopic sleeve is provided with a sleeve end convex shaft. The telescopic sleeve is rotatably mounted in the connecting rod boss hinge hole through the sleeve end convex shaft. The telescopic rod body is engaged and slidably engaged in the telescopic sleeve. The telescopic rod body is provided with a telescopic rod end convex shaft. The telescopic rod end convex shaft is engaged and slidably mounted in the middle hinge part of the cantilever connecting rod. The telescopic rod pretensioning spring is located between the telescopic sleeve and the telescopic rod body.

[0013] Furthermore, the flexible speed difference feedback mechanism includes a main drive assembly and a speed difference feedback assembly. The main drive assembly is mounted on a dynamic constant pressure preload belt drive mechanism, and the speed difference feedback assembly is mounted on a steel ball limiting preload mechanism. The main drive assembly includes a main drive toothed pulley, a driven toothed pulley, and a main drive toothed belt body. The main drive assembly is engaged on the output shaft of a rotary belt drive motor. The driven toothed pulley is rotatably mounted on a convex shaft at the end of the cantilever connecting rod. The main drive toothed pulley and the driven toothed pulley are connected by a transmission through the main drive toothed belt body. Through the rolling contact between the outer surface of the main drive toothed belt body and the steel ball body, the steel ball body can be driven to rotate laterally.

[0014] Preferably, the speed difference feedback component includes a feedback idler shaft, a direct-linkage idler, and a multi-stage transmission idler. The feedback idler shaft is mounted on the steel ball limiting and pre-tightening mechanism. The direct-linkage idler rotates on the feedback idler shaft, and the multi-stage transmission idler rotates on the feedback idler shaft. Through the speed difference between the direct-linkage idler and the multi-stage transmission idler, the input and output speed difference of the steel ball body during transmission can be fed back, thereby feeding back the slippage between the steel ball body and the feedback toothed belt body, and thus determining the roughness and grinding capability of the steel ball body at this time.

[0015] Furthermore, the steel ball limiting pre-tensioning mechanism includes a steel ball fixing assembly and a feedback belt pre-tensioning assembly, the feedback belt pre-tensioning assembly being disposed on the steel ball fixing assembly; the steel ball fixing assembly includes a main body base plate, a steel ball seat, a steel ball body, and a steel ball elastic pin, the rotary belt drive motor being disposed on the main body base plate, the thermal drive assembly being mounted on the main body base plate, the feedback idler wheel spindle being disposed on the main body base plate, the steel ball seat being disposed on the main body base plate, the inner surface of the steel ball seat being made of Teflon material, the steel ball body being rotatably disposed in the steel ball seat, and the steel ball elastic pin being disposed on the feedback belt pre-tensioning assembly, the steel ball elastic pin being always in contact with the surface of the steel ball body under the action of its own elastic force, thereby preventing the steel ball body from rolling out.

[0016] Preferably, the feedback belt pretensioning assembly includes a pretensioning sliding seat, a sliding pretensioning frame, a spring mounting seat, a mounting frame pretensioning spring, a feedback toothed belt gear, and a feedback toothed belt body. The pretensioning sliding seat is disposed on the main body base plate, and the sliding pretensioning frame is slidably disposed on the pretensioning sliding seat. A pretensioning frame top shaft is symmetrically disposed on the sliding pretensioning frame, and the feedback toothed belt gear is rotatably disposed on the pretensioning frame top shaft. The feedback toothed belt gear, the steel ball body, and the multi-stage transmission idler wheel are driven by the feedback toothed belt body. The spring mounting seat is disposed on the pretensioning sliding seat, and the mounting frame pretensioning spring is disposed between the spring mounting seat and the sliding pretensioning frame. Under the action of the mounting frame pretensioning spring, the sliding pretensioning frame tends to slide outward, thereby maintaining the pretensioning effect of the feedback toothed belt body.

[0017] Because the feedback toothed belt body is relatively long and affected by its self-enclosed shape, the deformation of the mounting bracket preload spring changes little when the diameter of the steel ball body decreases, and the problem of elastic force attenuation caused by deformation can be ignored. However, when the diameter of the steel ball body changes, the extension and retraction of the drive belt elastic preload component is large, so the problem of elastic force attenuation caused by deformation cannot be ignored.

[0018] As a further preferred embodiment of the present invention, the feedback toothed belt body and the main drive toothed belt body can be made of the same material, but the surface roughness of the feedback toothed belt body must be less than that of the main drive toothed belt body.

[0019] Furthermore, the simulated impact mechanism includes a motor mounting platform, an impact simulation motor, an impact disk mounting frame, an impact disk body, and suspended simulated steel balls. The motor mounting platform is located on the main body base plate, the impact simulation motor is located on the motor mounting platform, the impact disk mounting frame is engaged with the output shaft of the impact simulation motor, the impact disk body is located on the impact disk mounting frame, and the suspended simulated steel balls are evenly distributed in a ring below the impact disk body. When the impact disk mounting frame rotates with the impact disk body, the suspended simulated steel balls that are thrown up impact the upper surface of the steel ball body at high speed in the same direction. This not only simulates the grinding process but also applies a longitudinal rotational torque to the steel ball body and, in conjunction with the lateral rotation of the steel ball body, makes the impact and testing of the test area more comprehensive.

[0020] The beneficial effects achieved by the present invention using the above structure are as follows:

[0021] (1) The steel ball limiting and pre-tightening mechanism can limit the steel ball body and maintain the tension of the feedback toothed belt body;

[0022] (2) The flexible speed difference feedback mechanism can be pre-tightened by the dynamic constant pressure pre-tightening belt drive mechanism, maintaining the contact pressure of the flexible speed difference feedback mechanism on the steel ball body, and preventing the pre-tightening force from decaying as the diameter of the steel ball body decreases.

[0023] (3) The change in friction force on the surface of the steel ball seat can be fed back through the flexible speed difference feedback mechanism, so as to know the roughness of the surface of the steel ball body;

[0024] (4) The impact simulation mechanism can simulate the mutual impact between the material and the steel ball body, and apply a force to the steel ball body to drive its longitudinal rotation;

[0025] (5) When the heat-driven housing is heated, the gas in the sealed cavity will expand due to the heat, which will continue to increase the gas pressure inside the sealed cavity, thereby causing the heat-driven piston connecting rod to continue to retract into the heat-driven housing.

[0026] (6) The thermally driven piston rod retracts continuously and slowly during the test, which can change the reference position of the drive belt elastic pretensioning component when the diameter of the steel ball body becomes smaller and the symmetrical cantilever connecting rod is displaced, thereby preventing the elastic force of the drive belt elastic pretensioning component from decreasing due to elongation.

[0027] (7) By the speed difference between the direct linkage idler wheel and the multi-stage transmission idler wheel, the speed difference between the input and output of the steel ball body during the transmission process can be fed back, thereby feeding back the slippage between the steel ball body and the feedback toothed belt body, and then judging the roughness and grinding ability of the steel ball body at this time.

[0028] (8) When the impact plate mounting bracket rotates with the impact plate body, the suspended simulated steel balls that are thrown up impact the upper surface of the steel ball body at high speed in the same direction. This not only simulates the grinding process, but also applies a longitudinal rotational torque to the steel ball body and makes the impact and testing of the steel ball body more comprehensive by coordinating with the transverse rotation of the steel ball body. Attached Figure Description

[0029] Figure 1 This is a perspective view of a grinding device for aging testing of forged steel balls proposed in this invention;

[0030] Figure 2 This is a front view of a grinding device for aging testing of forged steel balls proposed in this invention;

[0031] Figure 3 This is a top view of a grinding device for aging testing of forged steel balls proposed in this invention;

[0032] Figure 4 for Figure 2 A cross-sectional view along the cutting line AA;

[0033] Figure 5 for Figure 4 A cross-sectional view along the cutting line BB;

[0034] Figure 6 for Figure 4 A cross-sectional view along the section line CC;

[0035] Figure 7 This is a schematic diagram of the dynamic constant pressure preload belt drive mechanism of the grinding device for aging testing of forged steel balls proposed in this invention;

[0036] Figure 8 This is a schematic diagram of the flexible speed difference feedback mechanism of a grinding device for aging testing of forged steel balls proposed in this invention;

[0037] Figure 9 This is a schematic diagram of the steel ball limiting and pre-tightening mechanism of a grinding device for aging testing of forged steel balls proposed in this invention;

[0038] Figure 10 This is a schematic diagram of the simulated impact mechanism of a grinding device for aging testing of forged steel balls proposed in this invention;

[0039] Figure 11 for Figure 6 A magnified view of a section at point I;

[0040] Figure 12 for Figure 1 Enlarged view of a section at point II;

[0041] Figure 13for Figure 5 A magnified view of a section at point III.

[0042] The components include: 1. Dynamic constant pressure pre-tensioned belt drive mechanism; 2. Flexible speed difference feedback mechanism; 3. Steel ball limit pre-tensioning mechanism; 4. Simulated impact mechanism; 5. Fixed main drive reference assembly; 6. Heat-driven pressure holding assembly; 7. Guided heat transfer assembly; 8. Drive belt elastic pre-tensioning assembly; 9. Rotary belt drive motor; 10. Concealed bearing; 11. Symmetrical cantilever connecting rod; 12. Heat-driven assembly mounting bracket; 13. Heat-driven housing; 14. Heat-driven piston connecting rod; 15. Friction block; 16. Externally wrapped heat-conducting rod; 17. Telescopic sleeve; 18. Telescopic rod body; 19. Telescopic rod pre-tensioning spring; 20. Cantilever connecting rod end collar; 21. Cantilever connecting rod end convex shaft; 22. Cantilever connecting rod intermediate groove; 23. Cantilever connecting rod intermediate hinge; 24. Vent hole at the rear of the cavity; 25. Guide part at the front of the cavity; 26. Sealed cavity; 27. 28. Connecting rod end boss; 29. ​​Connecting rod end boss hinge hole; 30. Sleeve end boss; 31. Telescopic rod end boss; 32. Main drive assembly; 33. Speed ​​difference feedback assembly; 34. Main drive toothed belt pulley; 35. Main drive toothed belt body; 36. Feedback idler pulley spindle; 37. Direct linkage idler pulley; 38. Multi-stage transmission idler pulley; 39. Steel ball fixing assembly; 40. Feedback belt pretensioning assembly; 41. Main... 42. Base plate, 43. Steel ball seat, 44. Steel ball body, 45. Steel ball elastic ejector pin, 46. Preload sliding seat, 47. Sliding preload frame, 48. Spring mounting seat, 49. Mounting frame preload spring, 50. Feedback toothed belt gear, 51. Feedback toothed belt body, 52. Preload frame top shaft, 53. Motor mounting platform, 54. Impact simulation motor, 55. Impact disc mounting frame, 56. Suspended simulated steel ball.

[0043] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0045] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0046] like Figure 1 As shown, this invention proposes a grinding device for aging testing of forged steel balls, including a dynamic constant pressure pre-tensioned belt drive mechanism 1, a flexible speed difference feedback mechanism 2, a steel ball limiting pre-tensioning mechanism 3, and a simulated impact mechanism 4. The steel ball limiting pre-tensioning mechanism 3 can limit the steel ball body 43 and maintain the tension of the feedback belt body 50. The dynamic constant pressure pre-tensioned belt drive mechanism 1 is mounted on the steel ball limiting pre-tensioning mechanism 3, and can pre-tension the flexible speed difference feedback mechanism 2 to maintain the tension of the flexible speed difference feedback mechanism. The flexible speed difference feedback mechanism 2 is located on the steel ball limiting pre-tightening mechanism 3. The flexible speed difference feedback mechanism 2 can feed back the change in friction force on the surface of the steel ball seat 42, thereby knowing the surface roughness of the steel ball body 43. The simulated impact mechanism 4 is located on the steel ball limiting pre-tightening mechanism 3. The simulated impact mechanism 4 can simulate the mutual impact between the material and the steel ball body 43, and apply a force to the steel ball body 43 to drive its longitudinal rotation.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 9As shown, the steel ball limiting pre-tensioning mechanism 3 includes a steel ball fixing assembly 39 and a feedback belt pre-tensioning assembly 40, with the feedback belt pre-tensioning assembly 40 mounted on the steel ball fixing assembly 39. The steel ball fixing assembly 39 includes a main body base plate 41, a steel ball seat 42, a steel ball body 43, and a steel ball elastic pin 44. A rotary belt drive motor 9 is mounted on the main body base plate 41, a heat drive assembly mounting bracket 12 is mounted on the main body base plate 41, a feedback idler wheel spindle 36 is mounted on the main body base plate 41, and the steel ball seat 42 is mounted on the main body base plate 41. The inner surface of the steel ball seat 42 is made of Teflon material, and the steel ball body... The body 43 is rotatably mounted in the steel ball seat 42. The steel ball elastic pin 44 is mounted on the feedback belt pretensioning assembly 40. Under its own elastic force, the steel ball elastic pin 44 always adheres to the surface of the steel ball body 43, thereby preventing the steel ball body 43 from rolling out. The feedback belt pretensioning assembly 40 includes a pretensioning sliding seat 45, a sliding pretensioning frame 46, a spring mounting seat 47, a mounting frame pretensioning spring 48, a feedback toothed belt gear 49, and a feedback toothed belt body 50. The pretensioning sliding seat 45 is mounted on the main body base plate 41, and the sliding pretensioning frame 46 is slidably mounted on the pretensioning sliding seat 45. A pretensioning frame top shaft 51 is symmetrically arranged on the 46. A feedback toothed belt gear 49 is rotatably mounted on the pretensioning frame top shaft 51. The feedback toothed belt gear 49, the steel ball body 43, and the multi-stage transmission idler wheel 38 are connected by a feedback toothed belt body 50. A spring mounting seat 47 is located on the pretensioning sliding seat 45. A mounting frame pretensioning spring 48 is located between the spring mounting seat 47 and the sliding pretensioning frame 46. Under the action of the mounting frame pretensioning spring 48, the sliding pretensioning frame 46 tends to slide outward, thereby maintaining the pretensioning effect of the feedback toothed belt body 50. Because the length of the feedback toothed belt body 50 is... Because the diameter of the steel ball body 43 is relatively long and affected by its self-enclosed shape, the deformation of the mounting bracket preload spring 48 changes little when the diameter of the steel ball body 43 decreases, and the problem of elastic force attenuation caused by deformation can be ignored. However, when the diameter of the steel ball body 43 changes, the extension and retraction of the drive belt elastic preload assembly 8 is large, so the problem of elastic force attenuation caused by deformation cannot be ignored. Preferably, the feedback toothed belt body 50 and the main drive toothed belt body 35 can be made of the same material, but the surface roughness of the feedback toothed belt body 50 must be less than the surface roughness of the main drive toothed belt body 35.

[0048] like Figure 1 , Figure 2 , Figure 4 , Figure 10As shown, the simulated impact mechanism 4 includes a motor mounting platform 52, an impact simulation motor 53, an impact disk mounting frame 54, an impact disk body 55, and suspended simulated steel balls 56. The motor mounting platform 52 is mounted on the main body base plate 41, the impact simulation motor 53 is mounted on the motor mounting platform 52, the impact disk mounting frame 54 is engaged with the output shaft of the impact simulation motor 53, the impact disk body 55 is mounted on the impact disk mounting frame 54, and the suspended simulated steel balls 56 are evenly distributed in a ring below the impact disk body 55. When the impact disk mounting frame 54 rotates with the impact disk body 55, the suspended simulated steel balls 56, which are thrown up, impact the upper surface of the steel ball body 43 at high speed in the same direction. This not only simulates the grinding process but also applies a longitudinal rotational torque to the steel ball body 43 and, in conjunction with the lateral rotation of the steel ball body 43, makes the impact and testing of the parts more comprehensive.

[0049] like Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 11 , Figure 13As shown, the dynamic constant pressure preload belt drive mechanism 1 includes a fixed main drive reference assembly 5, a heat-driven pressure holding assembly 6, a guide heat transfer assembly 7, and a drive belt elastic preload assembly 8. The fixed main drive reference assembly 5 is mounted on the steel ball limiting preload mechanism 3, the heat-driven pressure holding assembly 6 is mounted on the steel ball limiting preload mechanism 3, the guide heat transfer assembly 7 is symmetrically arranged between the fixed main drive reference assembly 5 and the heat-driven pressure holding assembly 6, and the drive belt elastic preload assembly 8 is symmetrically arranged between the fixed main drive reference assembly 5 and the heat-driven pressure holding assembly 6. The fixed main drive reference assembly 5 includes a rotary belt drive motor 9, a concealed bearing 10, and a symmetrical cantilever connecting rod 11. The fixed main drive reference assembly 5 can control the flexible speed difference feedback mechanism 2. The position is limited. The rotary belt drive motor 9 is mounted on the steel ball limiting pre-tightening mechanism 3. The hidden bearing 10 is engaged with the rotary belt drive motor 9 through the inner ring. One end of the symmetrical cantilever link 11 is provided with a cantilever link end collar 20. The symmetrical cantilever link 11 is rotatably mounted on the outer ring of the hidden bearing 10 through the cantilever link end collar 20. The hidden bearing 10 itself has low rotational resistance. Therefore, when the rotary belt drive motor 9 is driven, the torque output by the rotary belt drive motor 9 will not be transmitted to the symmetrical cantilever link 11. The other end of the symmetrical cantilever link 11 is provided with a cantilever link end convex shaft 21. The symmetrical cantilever link 11 is also provided with a cantilever link intermediate groove 22. The symmetrical cantilever link 11 is provided with a cantilever link intermediate hinge part 23 at the cantilever link intermediate groove 22.The heat-driven pressure holding assembly 6 includes a heat-driven assembly mounting bracket 12, a heat-driven housing 13, and a heat-driven piston connecting rod 14. The heat-driven assembly mounting bracket 12 is mounted on the steel ball limiting pre-tightening mechanism 3. The heat-driven housing 13 is fixedly connected to the heat-driven assembly mounting bracket 12. The rear end of the heat-driven housing 13 is provided with a vent hole 24 for gas exchange with the outside. The end of the heat-driven housing 13 is provided with a front guide portion 25. The heat-driven piston connecting rod 14 is engaged and slidably disposed in the front guide portion 25. The piston of the heat-driven piston connecting rod 14 and the interior of the heat-driven housing 13 are in sliding and sealing contact. The heat-driven housing 13 and the heat-driven piston connecting rod 14 form a sealed cavity. 26. When the heat-driven housing 13 is heated, the gas in the sealed cavity 26 will expand due to the heat, further increasing the internal air pressure of the sealed cavity 26 (initially, the internal air pressure of the sealed cavity 26 is higher than the external air pressure, used to resist the elastic force of the drive belt elastic pretensioning component 8), thereby causing the heat-driven piston connecting rod 14 to continue to retract into the heat-driven housing 13. The end of the heat-driven piston connecting rod 14 is provided with a connecting rod end boss 27, and the connecting rod end boss 27 is symmetrically provided with connecting rod boss hinge holes 28. During the test, the heat-driven piston connecting rod 14 retracts continuously and slowly, which can change the drive even when the diameter of the steel ball body 43 decreases and the symmetrical cantilever connecting rod 11 is displaced. The reference position of the belt elastic pretensioning assembly 8 is used to prevent the elastic force of the drive belt elastic pretensioning assembly 8 from decreasing due to elongation; the guide heat transfer assembly 7 includes a friction block 15 and an outer-wrap heat-conducting rod 16. The friction block 15 is fixed to the side of the symmetrical cantilever connecting rod 11, and one end of the outer-wrap heat-conducting rod 16 is fixed to the heat drive housing 13. The other end of the outer-wrap heat-conducting rod 16 is in sliding contact with the friction block 15. When the friction block 15 rubs against the main drive toothed belt body 35, it will increase the heat of the friction block 15. After the friction block 15 heats up, its own heat can be conducted to the heat drive housing 13 through the outer-wrap heat-conducting rod 16; drive belt elastic pretensioning assembly 8 The system includes a telescopic sleeve 17, a telescopic rod body 18, and a telescopic rod preload spring 19. The drive belt elastic preload assembly 8 supports the symmetrical cantilever connecting rod 11 and continuously provides preload force to the flexible speed difference feedback mechanism 2. The telescopic sleeve 17 has a sleeve end convex shaft 29, which rotatably engages with the connecting rod boss hinge hole 28. The telescopic rod body 18 is engaged and slidably fitted within the telescopic sleeve 17. The telescopic rod body 18 has a telescopic rod end convex shaft 30, which engages and slidably fits with the cantilever connecting rod's intermediate hinge portion 23. The telescopic rod preload spring 19 is located between the telescopic sleeve 17 and the telescopic rod body 18.

[0050] like Figure 1 , Figure 6 , Figure 8 , Figure 12As shown, the flexible speed difference feedback mechanism 2 includes a main drive assembly 31 and a speed difference feedback assembly 32. The main drive assembly 31 is mounted on the dynamic constant pressure preload belt drive mechanism 1, and the speed difference feedback assembly 32 is mounted on the steel ball limiting preload mechanism 3. The main drive assembly 31 includes a main drive toothed pulley 33, a main and driven toothed pulley 34, and a main drive toothed belt body 35. The main drive assembly 31 is engaged on the output shaft of the rotary belt drive motor 9. The main and driven toothed pulley 34 is rotatably mounted on the end cam 21 of the cantilever connecting rod. The main drive toothed pulley 33 and the main and driven toothed pulley 34 are connected by the main drive toothed belt body 35, and the transmission is achieved through the outer surface of the main drive toothed belt body 35 and the steel ball body 43. The rolling contact can drive the steel ball body 43 to rotate laterally; the speed difference feedback component 32 includes a feedback idler shaft 36, a direct linkage idler 37, and a multi-stage transmission idler 38. The feedback idler shaft 36 is mounted on the steel ball limiting pre-tightening mechanism 3. The direct linkage idler 37 is rotatably mounted on the feedback idler shaft 36, and the multi-stage transmission idler 38 is rotatably mounted on the feedback idler shaft 36. Through the speed difference between the direct linkage idler 37 and the multi-stage transmission idler 38, the input and output speed difference of the steel ball body 43 during transmission can be fed back, thereby feeding back the slippage between the steel ball body 43 and the feedback toothed belt body 50, and thus judging the roughness and grinding ability of the steel ball body 43 at this time.

[0051] In practical use, the user first needs to start the rotary belt drive motor 9. The main drive toothed pulley 33 drives the main and driven toothed pulleys 34 and the main drive toothed belt body 35 through the transmission. Through the supporting effect of the symmetrical cantilever connecting rod 11 on the main and driven toothed pulleys 34, the main drive toothed belt body 35 can be attached to and wrapped around the steel ball body 43 with a certain preload. Through the rolling friction between the main drive toothed belt body 35 and the steel ball body 43, the steel ball body 43 is rotated laterally.

[0052] When the steel ball body 43 rotates laterally, it will also drive the multi-stage transmission idler 38 to rotate through the feedback toothed belt body 50, while the direct linkage idler 37 rotates directly under the drive of the main drive toothed belt body 35.

[0053] At the same time, it is also necessary to start the impact simulation motor 53. The impact disk mounting bracket 54 installed on the output shaft of the impact simulation motor 53 drives the impact disk body 55 to rotate at high speed. When the impact disk body 55 rotates at high speed, the suspended simulated steel ball 56 is thrown up and impacts the steel ball body 43. While simulating the grinding condition, it can also apply a torque to the steel ball body 43 to drive its own longitudinal rotation.

[0054] When rotating both laterally and longitudinally, the impact area and the area in contact with the feedback toothed belt body 50 can be distributed across the entire surface of the steel ball body 43.

[0055] When the surface roughness of the steel ball body 43 is high (the steel ball body 43 and the feedback toothed belt body 50 have good contact), there will be twisting between the steel ball body 43 and the feedback toothed belt body 50, but there will be no obvious slippage. This means that the lateral linear velocity of the steel ball body 43 is the same as the linear velocity of the feedback toothed belt body 50. The same applies to the transmission between the steel ball body 43 and the main drive toothed belt body 35.

[0056] Under good contact conditions, the linear velocities of the outer surfaces of the main drive toothed pulley 33, the main drive toothed belt body 35, the steel ball body 43, the feedback toothed belt body 50, the direct linkage idler 37, and the multi-stage transmission idler 38 are basically the same. Therefore, when the surface roughness of the steel ball body 43 is high, the speed difference between the direct linkage idler 37 and the multi-stage transmission idler 38 is small.

[0057] When the surface roughness of the steel ball body 43 is not high, the lateral linear velocity of the steel ball body 43 is greater than the linear velocity of the feedback toothed belt body 50. At this time, the rotation speed of the multi-stage transmission idler wheel 38 will be lower than the rotation speed of the direct linkage idler wheel 37. When there is a large speed difference between the direct linkage idler wheel 37 and the multi-stage transmission idler wheel 38, it means that the outer surface of the steel ball body 43 is already relatively smooth and not conducive to grinding.

[0058] The above is the overall workflow of this invention. Simply repeat this process the next time you use it.

[0059] 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.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0061] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A grinding device for aging testing of forged steel balls, characterized in that: The system includes a dynamic constant pressure preload belt drive mechanism (1), a flexible speed difference feedback mechanism (2), a steel ball limiting preload mechanism (3), and a simulated impact mechanism (4). The dynamic constant pressure preload belt drive mechanism (1) is mounted on the steel ball limiting preload mechanism (3), the flexible speed difference feedback mechanism (2) is mounted on the steel ball limiting preload mechanism (3), and the simulated impact mechanism (4) is mounted on the steel ball limiting preload mechanism (3). The dynamic constant pressure preload belt drive mechanism (1) includes a fixed main drive reference assembly (5) and a heat-driven pressure holding assembly (6). 6) Guided heat transfer assembly (7) and drive belt elastic pretensioning assembly (8), the fixed main drive reference assembly (5) is disposed on the steel ball limiting pretensioning mechanism (3), the heat-driven pressure holding assembly (6) is disposed on the steel ball limiting pretensioning mechanism (3), the guided heat transfer assembly (7) is symmetrically disposed between the fixed main drive reference assembly (5) and the heat-driven pressure holding assembly (6), and the drive belt elastic pretensioning assembly (8) is symmetrically disposed between the fixed main drive reference assembly (5) and the heat-driven pressure holding assembly (6); The fixed main drive reference assembly (5) includes a rotary belt drive motor (9), a concealed bearing (10), and a symmetrical cantilever connecting rod (11). The rotary belt drive motor (9) is mounted on a steel ball limiting preload mechanism (3). The concealed bearing (10) is secured to the rotary belt drive motor (9) by an inner ring. One end of the symmetrical cantilever connecting rod (11) is provided with a cantilever connecting rod end collar (20). The symmetrical cantilever connecting rod (11) is rotatably mounted on the outer ring of the concealed bearing (10) through the cantilever connecting rod end collar (20). The other end of the symmetrical cantilever connecting rod (11) is provided with a cantilever connecting rod end convex shaft (21). The symmetrical cantilever connecting rod (11) is also provided with a cantilever connecting rod intermediate groove (22). The symmetrical cantilever connecting rod (11) is provided with a cantilever connecting rod intermediate hinge part (23) at the cantilever connecting rod intermediate groove (22). The flexible speed difference feedback mechanism (2) includes a main drive assembly (31) and a speed difference feedback assembly (32). The main drive assembly (31) is mounted on the dynamic constant pressure pretension belt drive mechanism (1), and the speed difference feedback assembly (32) is mounted on the steel ball limiting pretension mechanism (3). The main drive assembly (31) includes a main drive toothed pulley (33), a main driven toothed pulley (34), and a main drive toothed belt body (35). The main drive assembly (31) is engaged on the output shaft of the rotary belt drive motor (9). The main driven toothed pulley (34) is rotatably mounted on the end convex shaft (21) of the cantilever connecting rod. The main drive toothed pulley (33) and the main driven toothed pulley (34) are connected by transmission through the main drive toothed belt body (35).

2. The grinding device for aging testing of forged steel balls according to claim 1, characterized in that: The heat-driven pressure holding assembly (6) includes a heat-driven assembly mounting bracket (12), a heat-driven housing (13), and a heat-driven piston connecting rod (14). The heat-driven assembly mounting bracket (12) is mounted on the steel ball limiting pre-tightening mechanism (3). The heat-driven housing (13) is fixedly connected to the heat-driven assembly mounting bracket (12). The rear end of the heat-driven housing (13) is provided with a vent hole (24) for gas exchange with the outside. The end of the heat-driven housing (13) is provided with a front end of the housing. The guide part (25) is engaged and slidably disposed in the front end guide part (25) of the cavity. The piston of the thermal drive piston rod (14) and the interior of the thermal drive housing (13) are in sliding and sealed contact. The thermal drive housing (13) and the thermal drive piston rod (14) are in a sealed cavity (26). The end of the thermal drive piston rod (14) is provided with a connecting rod end boss (27). The connecting rod end boss (27) is symmetrically provided with connecting rod boss hinge holes (28).

3. The grinding device for aging testing of forged steel balls according to claim 2, characterized in that: The guiding heat transfer assembly (7) includes a friction block (15) and an outer-wrap heat-conducting rod (16). The friction block (15) is fixed to the side of the symmetrical cantilever connecting rod (11). One end of the outer-wrap heat-conducting rod (16) is fixed to the heat drive housing (13), and the other end of the outer-wrap heat-conducting rod (16) slides in contact with the friction block (15). The drive belt elastic pretensioning assembly (8) includes a telescopic sleeve (17), a telescopic rod body (18), and a telescopic rod pretensioning spring (19). 17) The telescopic sleeve (17) is provided with a sleeve end convex shaft (29). The telescopic sleeve (17) is rotatably disposed in the connecting rod boss hinge hole (28) through the sleeve end convex shaft (29). The telescopic rod body (18) is engaged and slidably disposed in the telescopic sleeve (17). The telescopic rod body (18) is provided with a telescopic rod end convex shaft (30). The telescopic rod end convex shaft (30) is engaged and slidably disposed in the middle hinge part (23) of the cantilever connecting rod. The telescopic rod preload spring (19) is disposed between the telescopic sleeve (17) and the telescopic rod body (18).

4. The grinding device for aging testing of forged steel balls according to claim 3, characterized in that: The speed difference feedback component (32) includes a feedback idler shaft (36), a direct linkage idler (37), and a multi-stage transmission idler (38). The feedback idler shaft (36) is mounted on the steel ball limiting pre-tightening mechanism (3). The direct linkage idler (37) is rotatably mounted on the feedback idler shaft (36), and the multi-stage transmission idler (38) is rotatably mounted on the feedback idler shaft (36).

5. The grinding device for aging testing of forged steel balls according to claim 4, characterized in that: The steel ball limiting pre-tightening mechanism (3) includes a steel ball fixing assembly (39) and a feedback belt pre-tightening assembly (40). The feedback belt pre-tightening assembly (40) is located on the steel ball fixing assembly (39). The steel ball fixing assembly (39) includes a main body base plate (41), a steel ball seat (42), a steel ball body (43), and a steel ball elastic pin (44). The rotary belt drive motor (9) is located on the main body base plate (41). The thermal drive assembly mounting bracket (12) is located on the main body base plate (41). The feedback idler wheel spindle (36) is located on the main body base plate (41). The steel ball seat (42) is located on the main body base plate (41). The steel ball body (43) is rotatably located in the steel ball seat (42). The steel ball elastic pin (44) is located on the feedback belt pre-tightening assembly (40).

6. The grinding device for aging testing of forged steel balls according to claim 5, characterized in that: The feedback belt pretensioning assembly (40) includes a pretensioning sliding seat (45), a sliding pretensioning frame (46), a spring mounting seat (47), a mounting frame pretensioning spring (48), a feedback toothed belt gear (49), and a feedback toothed belt body (50). The pretensioning sliding seat (45) is mounted on the main body base plate (41). The sliding pretensioning frame (46) is slidably mounted on the pretensioning sliding seat (45). The sliding pretensioning frame (46) is symmetrically provided with a pretensioning frame top shaft (51). The feedback toothed belt gear (49) is rotatably mounted on the pretensioning frame top shaft (51). The feedback toothed belt gear (49), the steel ball body (43), and the multi-stage transmission idler wheel (38) are driven by the feedback toothed belt body (50). The spring mounting seat (47) is mounted on the pretensioning sliding seat (45). The mounting frame pretensioning spring (48) is located between the spring mounting seat (47) and the sliding pretensioning frame (46).

7. The grinding device for aging testing of forged steel balls according to claim 6, characterized in that: The simulated impact mechanism (4) includes a motor mounting platform (52), an impact simulation motor (53), an impact disk mounting frame (54), an impact disk body (55), and suspended simulated steel balls (56). The motor mounting platform (52) is located on the main body base plate (41), the impact simulation motor (53) is located on the motor mounting platform (52), the impact disk mounting frame (54) is engaged with the output shaft of the impact simulation motor (53), the impact disk body (55) is located on the impact disk mounting frame (54), and the suspended simulated steel balls (56) are evenly distributed in a ring below the impact disk body (55).

8. The grinding device for aging testing of forged steel balls according to claim 7, characterized in that: The surface roughness of the feedback toothed belt body (50) must be less than the surface roughness of the main drive toothed belt body (35).

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