WO2020199392A1

WO2020199392A1 - Internal meshing gear running-in test device and test method therefor

Info

Publication number: WO2020199392A1
Application number: PCT/CN2019/093534
Authority: WO
Inventors: 戴飞; 孙键
Original assignee: 变厚机器人关节技术(上海)有限公司
Priority date: 2019-04-02
Filing date: 2019-06-28
Publication date: 2020-10-08
Also published as: CN109738186B; CN109738186A

Abstract

An internal meshing gear running-in test device and a test method therefor; a chuck device (4) comprises a chuck structure and a rotating structure; the chuck structure is used to fix a testing ring gear; the rotating structure comprises a chuck stop plate (411), and the chuck stop plate (411) comprises an end portion and a first circumferential extension section (51) extending outward from the end portion; the chuck structure is provided with a second circumferential extension section (54); the first circumferential extension section (51) may be located at an inner side of the second circumferential extension section (54), and a tapered bearing (44) and a thrust bearing (45) are fixed between the first circumferential extension section (51) and the second circumferential extension section (54). The described device has a simple and feasible combination structure, a well-designed structure, a tight and compact structure, a large adjustable range, and strong applicability, and is especially suitable for the detection and grinding of internal meshing systems; in addition, the described device may achieve and improve the detection capabilities and efficiency of tooth imprints of internal meshing gears, and is helpful in controlling drive run-in.

Description

Internal gear running-in test device and test method

Technical field

The invention relates to the technical field of internal gear testing, in particular to an internal gear running-in test device and a test method thereof.

Background technique

High-precision gears are key components in precision equipment, and are the main parts that transmit precision motion and power. The internal meshing thickened gear planetary system has the characteristics of large speed ratio and high precision. However, the existing technology only has a meshing test device suitable for external meshing thickened gears, and does not have the tooth print detection, abrasive addition and abrasive addition suitable for internal meshing gears. Accurate running-in testing capability device.

Summary of the invention

The purpose of the present invention is to solve the shortcomings of the prior art, and provide a running-in test device and a test method for an internal meshing gear, which can realize the tooth print detection and precision running-in test of the internal meshing gear.

In order to achieve the above objective, a running-in test device for internal gears is designed, which includes a drive mechanism and a chuck device. The chuck device includes a fixed chuck structure and a rotating structure. The chuck structure is used to achieve For the fixing of the test ring gear, the rotating structure includes a chuck stop plate, the chuck stop plate includes an end portion and a first circumferential extension section extending from the end portion to one side, the chuck The structure is provided with a second circumferential extension section, and the first circumferential extension section is located inside the second circumferential extension section, and is located between the first circumferential extension section and the second circumferential extension section A tapered bearing is fixed between to enable the chuck structure to rotate along the outer wall of the first circumferential extension section, a thrust bearing is also fixed at the end of the tapered bearing close to the chuck stop plate, and the drive mechanism It is used to coordinately connect the test gear and drive the test gear to rotate, thereby driving the test ring gear meshed with the test gear and the chuck structure for fixing the test ring gear to rotate.

The present invention also has the following preferred technical solutions:

The outer end of the second circumferential extension of the chuck structure is connected with a pressure plate that fits the outer end of the thrust bearing, and the chuck structure is provided with a chuck at the position of the inner end surface of the tapered bearing. Spring to achieve the limit of tapered bearing and thrust bearing.

The chuck structure is provided with a groove at the position of the inner end surface of the tapered bearing, and the circlip is fixed at the groove.

The outer surface of the first circumferential extension section is provided with a first step for limiting the outer end surface of the tapered bearing, and the inner surface of the second circumferential extension section is provided with a step for limiting the thrust bearing The second step.

The device also includes a base, on which a first guide rail and a second guide rail are perpendicular to each other, a motor base is connected to the first guide rail, and the second guide rail is A chuck base is matched and connected, the motor base is provided with the drive mechanism, and the chuck base is provided with the chuck stop plate.

Anti-collision devices are respectively arranged on both sides or one side of the running direction of the first guide rail and the second guide rail.

The chuck structure includes a chuck seat, a spiral chuck seat, a chuck foot, and a rotating card. The chuck seat is provided with a spiral chuck seat. One side of the chuck seat is matched with a rotating card. A number of clamping feet are evenly engaged in the circumferential direction.

An annular groove is provided at one end of the chuck structure to form a second circumferential extension section outside the annular groove, and a cylindrical structure is formed in the middle of the chuck structure. The first circumference of the chuck stop plate is The radial extension section is arranged between the second circumferential extension section and the cylindrical structure, and a connecting piece is connected between the outer wall of the cylindrical structure and the second circumferential extension section to form a mechanical oil seal.

An abrasive collection structure is provided on the lower side of the meshing position of the test gear and the test ring gear, the abrasive collection structure is provided with upward extensions on both sides, the abrasive collection structure is provided with abrasives, one side of the abrasive collection structure The blocking cover is rotatably connected.

The present invention also designs a test method for the internal meshing gear running-in test device. The method is as follows: connect the test gear and the drive mechanism in cooperation, fix the test ring gear through the chuck structure, and pass the first The guide rail and the second guide rail adjust the relative axial distance between the test gear and the test ring gear to control the meshing gap and adjust the center distance, and then use the driving mechanism to drive the tested planetary gear to rotate in the test thickened ring gear. And drive the test thickening inner gear ring to rotate, and then drive the chuck structure to rotate. The chuck structure rotates around the outer wall of the first circumferential extension of the chuck stop plate through the tapered bearing of the rotating structure, and is set in the abrasive collection structure. There are abrasive materials, and the test gear is driven by the drive mechanism to generate friction with the abrasive material to perform polishing tests on the surface of the test planetary gear and the surface of the thickened ring gear and improve the finish, and control the drive mechanism on the abrasive material Leave the mesh marks at different speeds.

Compared with the prior art, the combined structure of the present invention is simple and feasible, and its advantages are: the present invention has reasonable structural design, tight and compact structure, large adjustable range, strong practicability, and can realize quick clamping of the inner gear ring. It is especially suitable for the detection and grinding of internal gearing system, which can realize the detection of internal gear tooth marks and improve the detection efficiency, and is beneficial to the control of driving running-in.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the device of the present invention in an embodiment;

Figure 2 is a front view of the device of the present invention in an embodiment;

Figure 3 is a side view of the device of the present invention in an embodiment;

Figure 4 is a rear view of the device of the present invention in an embodiment;

Fig. 5 is a schematic diagram of the structure of the chuck device of the present invention in an embodiment.

In the figure: 1. Drive mechanism 2. Test gear 3. Test inner gear 4. Chuck device 5. Base 6. First guide rail 7. Second guide rail 8. First anti-collision device 9. Support block 10. Shield 11.Chuck base 12. Abrasive collection structure 13. Second anti-collision device 14. Hinge 15. Motor base 41. Clip 42. Chuck seat 43. Rotary card 44. Tapered bearing 45. Thrust bearing 46 Pressure plate 47. Mechanical oil seal 48. Bolt 49. Circlip 410. Spiral clamp 411. Chuck stop plate 51. First circumferential extension 52. First step 53. Groove 54. Second circumferential extension 55 . The first horizontal section 56. The vertical section 57. The second horizontal section 58. Ladder structure.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings. The structure and principle of this device and method are very clear to those in the field. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

Referring to Figures 1 to 4, this embodiment provides a running-in test device for internal meshing gears, which includes a base 5 on which a first guide rail 6 is fixed by a hexagonal nut, and a motor base is connected to the first guide rail 6 15, and the motor base 15 and the components arranged on the motor base 15 can move along the X-axis direction through the first guide rail 6. On the base 5, a second guide rail 7 is fixed by a hexagonal nut in a direction perpendicular to the first guide rail 6, and a chuck base 11 is fitted and connected to the second guide rail 7, and The second guide rail 7 can make the chuck base 11 and the components arranged on the chuck base 11 move along the Y-axis direction. A servo motor for matching with the test planetary gear and driving the test planetary gear is fixed on the motor base 15 through a nut, and a chuck device 4 is fixed on the chuck base 11 by a nut, and the chuck device 4 is used for fixing Test the thickened ring gear, and drive the test planetary gear to move in the X-axis direction through the first guide rail 6, and drive the test thickened ring gear to move in the Y-axis direction through the second guide rail 7 to adjust the test planetary gear and test The position of the inner ring gear is thickened and the side clearance of the two teeth is controlled to achieve the meshing of the two. Preferably, in order to prevent accidental collisions, anti-collision devices can be provided on both sides or one side of the running direction of the first guide rail 6 and the second guide rail 7 respectively. The first guide rail 6 and the second guide rail 7 in this embodiment can be linear guide rails.

Referring to Fig. 5, the chuck device 4 includes two parts, a chuck structure and a rotating structure. The chuck structure can adopt an existing related fixing structure that can realize clamping and unclamping functions. In this embodiment, the chuck structure adopts a three-legged chuck structure. The triangular chuck structure includes a chuck seat 42, a spiral chuck seat 410, a chuck foot 41 and a rotating card 43, and the chuck seat 42 is provided with Spiral card holder 410. One side of the screw holder 410 is matched with a rotating card 43. In this embodiment, a spiral bevel gear is used as the rotating card 43. The screw holder 410 is evenly engaged with three clamping feet 41 in the circumferential direction through threads. 41 is fixed at the end of the tripod chuck structure by a slot or screw. By driving the rotating card 43 to rotate, the screw holder 410 can be driven to rotate, thereby driving the angle of engagement with the screw holder 410 along the setting direction of the slot or screw. Move, so as to realize the clamping or loosening of the test thickened ring gear.

The rotation structure includes a chuck stop plate 411, and the chuck base 11 is connected with a chuck stop plate 411 through a nut. The chuck stop plate 411 includes one end and an end extending from the end to one side. The first circumferential extension section 51, the chuck seat 42 of the triangular chuck structure is provided with a second circumferential extension section 54 in the direction away from the clamping leg 41, and the inner diameter of the space enclosed by the second circumferential extension section 54 It is larger than the inner diameter of the space enclosed by the first circumferential extension 51, that is, when the chuck stop plate 411 and the chuck structure are matched, the first circumferential extension 51 can be accommodated in the second circumferential extension 54 On the inner side, and between the first circumferential extension section 51 and the second circumferential extension section 54 from left to right, that is, along the direction gradually away from the clip 41, a tapered bearing 44 and a thrust bearing are sequentially arranged 45. The chuck seat 42 is fixed at the outer end of the second circumferential extension 54 through a bolt 48 with a pressure plate 46 that is attached to the outer end of the thrust bearing 45, and the chuck stop plate 411 is on the tapered bearing 44 A groove 53 is provided at the position of the inner end surface, and a circlip 49 is fixed at the groove 53 to realize the fixing of the tapered bearing 44 and the thrust bearing 45. The inner surface of the second circumferential extension 54 is provided with The second step that limits the thrust bearing 45, and the outer surface of the first circumferential extension 51 is provided with a first step 52 to limit the outer end surface of the tapered bearing 44, but the The first step 52 does not hinder the contact between the outer end surface of the tapered bearing 44 and the inner end surface of the thrust bearing 45, so that the axial force received by the tapered bearing 44 is the force in the left and right directions in this embodiment. , Can be transmitted to the thrust bearing 45. The tapered bearing 44 in this embodiment may be a tapered roller bearing.

In a preferred embodiment, the chuck seat 42 of the chuck structure is provided with an annular groove 53 at one end away from the clamping leg 41 to form a second circumferential extension 54 outside the annular groove 53 and The middle of the chuck seat 42 forms a cylindrical structure. In this embodiment, the middle of the cylindrical structure is hollow. The first circumferential extension 51 of the chuck stop plate 411 is arranged in the annular groove 53, that is, Between the second circumferential extension 54 and the cylindrical structure, a connecting piece is connected between the outer wall of the cylindrical structure and the first circumferential extension 51 to form a mechanical oil seal 47. The connecting piece described in this embodiment includes The first horizontal section 55 and the second horizontal section 57 are parallel. The first horizontal section 55 and the second horizontal section 57 are connected by a vertical section 56. The outside of the second horizontal section 57 is provided with a protrusion. The end of 55 is restricted by a step structure 58 provided on the inner surface of the first circumferential extension section 51, and the protrusion of the second horizontal section 57 abuts against the outer wall of the cylindrical structure.

Between the first guide rail 6 and the second guide rail 7, that is, the lower side of the meshing position of the test planetary gear and the test thickened ring gear is provided with an abrasive collection structure 12, on both sides of the abrasive collection structure 12 It is provided with an upward extension, that is, its vertical section is U-shaped. The abrasive collection structure 12 is equipped with abrasives. One side of the abrasive collection structure 12 can also be connected to the shield 10 through a hinge 14 or other hinged structure. 10 can be rotated by hinge 14 or other articulated structures to cover the meshing transmission area of the test planetary gear and the test thickened ring gear when the device is running, thereby preventing abrasive splashing and hurting people during the rotation of the workpiece.

When in use, the test planetary gear is connected with the driving mechanism 1, the test thickened ring gear is fixed on the side of the chuck structure that can rotate in a circle, and the chuck device 4 has fast and automatic centering to achieve high efficiency. The function of the folder. Drive the test planetary gear to be tested through the driving mechanism 1, such as a servo motor. The test planetary gear rotates in the test thickened ring gear, and drives the test thickened ring gear to rotate, which in turn drives the chuck structure to rotate, the chuck structure The tapered bearing 44 of the rotating structure rotates stably around the outer wall surface of the first circumferential extension section 51 of the chuck stop plate 411. The first guide rail 6 and the second guide rail 7 can adjust the relative axial distance between the test planetary gear and the test thickened ring gear to control the meshing gap and adjust the center distance. Abrasive materials can be added to the abrasive collection structure 12. The test planetary gear is driven by a servo motor at high speed, and friction is generated with the abrasive material. It is used to polish the test planetary gear surface and test the thickened ring gear surface to achieve a better finish. The gear pair after running-in can clearly detect its matching meshing mark, and can detect meshing marks at different speeds through the controllable servo motor speed.

Claims

A running-in test device for internal meshing gears, including a driving mechanism, is characterized in that it also includes a chuck device. The chuck device includes a fixed chuck structure and a rotating structure, and the chuck structure is used to achieve alignment. To test the fixation of the inner gear ring, the rotating structure includes a chuck stop plate, the chuck stop plate includes one end and a first circumferential extension extending from the end to one side, the chuck structure A second circumferential extension section is provided, and the first circumferential extension section is located inside the second circumferential extension section, and is located between the first circumferential extension section and the second circumferential extension section A tapered bearing is fixed between it so that the chuck structure can rotate along the outer wall of the first circumferential extension. A thrust bearing is also fixed at the end of the tapered bearing close to the chuck stop plate, and the driving mechanism is used for The test gear is connected in cooperation and drives the test gear to rotate, thereby driving the test ring gear meshed with the test gear and the chuck structure for fixing the test ring gear to rotate.
The internal meshing gear running-in test device according to claim 1, wherein the outer end of the second circumferential extension of the chuck structure is connected with a pressure plate that fits the outer end of the thrust bearing, and The chuck structure is provided with a circlip at the position of the inner end surface of the tapered bearing to realize the limit of the tapered bearing and the thrust bearing.
The internal gear running-in test device of claim 2, wherein the chuck structure is provided with a groove at the position of the inner end surface of the tapered bearing, and the circlip is fixed at the groove.
The internal gear running-in test device according to claim 1 or 2, characterized in that the outer surface of the first circumferential extension section is provided with a first step for limiting the outer end surface of the tapered bearing, so The inner surface of the second circumferential extension section is provided with a second step for limiting the thrust bearing.
The internal gear running-in test device of claim 1, further comprising a base, and a first guide rail and a second guide rail that are perpendicular to each other are arranged on the base, and the first guide rail is A motor base is matched and connected, a chuck base is matched and connected to the second guide rail, the drive mechanism is provided on the motor base, and the chuck stop is provided on the chuck base. board.
The internal gear running-in test device according to claim 5, characterized in that anti-collision devices are respectively provided on both sides or one side of the running direction of the first guide rail and the second guide rail.
The internal gear running-in test device according to claim 1, wherein the chuck structure includes a chuck seat, a spiral chuck seat, a chuck foot and a rotating card, and the chuck seat is provided with a spiral chuck In the seat, one side of the spiral card seat is matched and connected with a rotating card, and the spiral card seat is evenly engaged with a number of clamping feet in the circumferential direction through threads.
The internal gear running-in test device of claim 1, wherein the chuck structure is provided with an annular groove at one end to form a second circumferential extension on the outside of the annular groove, and in the chuck structure The middle part forms a cylindrical structure, the first circumferential extension of the chuck stop plate is arranged between the second circumferential extension and the cylindrical structure, and the outer wall of the cylindrical structure and the second circumferential extension Connecting pieces are connected between the segments to form a mechanical oil seal.
The internal gear running-in test device according to claim 1, wherein the underside of the meshing position of the test gear and the test ring gear is provided with an abrasive collection structure, and both sides of the abrasive collection structure are provided with upward The extension section of the abrasive collection structure is provided with abrasives, and one side of the abrasive collection structure is rotatably connected with a shield.
A test method using the internal meshing gear running-in test device according to claim 9, characterized in that the test gear and the drive mechanism are matched and connected, and the test ring gear is fixed by the chuck structure and passed through the first guide rail Adjust the relative axial distance between the test gear and the test ring gear with the second guide rail to control the meshing gap and adjust the center distance, and then use the driving mechanism to drive the tested planetary gear to rotate in the test thickened ring gear and drive it Test the thickened ring gear to rotate, which in turn drives the chuck structure to rotate. The chuck structure rotates around the outer wall of the first circumferential extension of the chuck stop plate through the tapered bearing of the rotating structure. There is a grinding in the abrasive collection structure. Material, the test gear is driven by the drive mechanism to generate friction with the abrasive material to test the surface of the test planetary gear and the thickened ring gear surface to improve the finish, and leave on the abrasive material by controlling the drive mechanism Mesh marks at different speeds.