Polishing device for production of rear axle half shaft of tractor

Abstract

The utility model discloses a grinding device for tractor rear axle shaft production in the related technical field of rear axle shaft machining, which comprises a rotary power box and a rotary support seat, the rotary support seat is arranged above the rotary power box, and a fixed chuck is rotatably connected and mounted on the rotary support seat. A fixed clamping jaw is installed on the fixed chuck, a translation power box is arranged on the side edge of the rotating power box, a movable frame is arranged on the translation power box in a matched mode, and a hydraulic rod is fixedly installed on the top of the movable frame. According to the utility model, the rotary power box and the fixed chuck are arranged, the rear axle shaft can be vertically and fixedly arranged on the fixed chuck, the flange end of the rear axle shaft is clamped and fixed by utilizing the fixed chuck, and when the fixed chuck drives the rear axle shaft to rotate, the gravity center is positioned at the lower half part of a workpiece; the situation that the free end of the rear axle half shaft swings in the rotating process can be effectively reduced, and then the grinding quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of rear axle half shaft processing, concretely relates to a polishing device for tractor rear axle half shaft production. BACKGROUND

[0002] Tractor rear axle half shaft refers to the part connecting the wheel and the driving shaft, which is used for transmitting power and bearing vehicle load. It is a very important component in the tractor driving system, which can effectively transmit the power generated by the engine to the wheel to drive the vehicle. In the processing of tractor rear axle half shaft, polishing is one of the necessary steps. Specifically, polishing is usually carried out after forging, which aims to eliminate uneven structure, coarse grains and forging stress after forging, and improve the machinability. Through polishing, uniform fine pearlite structure can be obtained, thereby improving the hardness and processing performance of the half shaft. When the existing rear axle half shaft polishing device is used for polishing, the rear axle half shaft is usually clamped horizontally. Due to the influence of its own gravity, the free end of the rear axle half shaft will swing during the rotation of the rear axle half shaft driven by the power device, which affects the polishing quality. At the same time, the polishing device has a complex structure and high production investment cost.

[0003] Therefore, the utility model is provided. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide a polishing device for tractor rear axle half shaft production. To solve the above technical problems, the basic idea of the technical scheme adopted by the utility model is:

[0005] A polishing device for tractor rear axle half shaft production, comprising a rotary power box and a rotating support seat, a rotating support seat is arranged above the rotary power box, a fixed chuck is rotatably connected and arranged on the rotating support seat, a fixed jaw is arranged on the fixed chuck, a translational power box is arranged on the side of the rotary power box, a movable frame is arranged on the translational power box in a matched mode, a hydraulic rod is fixedly installed on the top of the movable frame, a lifting mounting frame is fixedly installed on the lower end of the hydraulic rod, a polishing motor is arranged on the lifting mounting frame, the main shaft of the polishing motor is connected with the upper end of a polishing mounting shaft through a shaft coupling, a polishing wheel is arranged on the polishing mounting shaft, arc-shaped edges are arranged on the upper and lower edges of the polishing wheel, and the arc-shaped edges are well adapted to the shaft body and the flange transition position of the rear axle half shaft.

[0006] As a further scheme of the utility model, a guide rod is fixedly arranged on the movable frame, the guide rod is arranged in parallel with the telescopic rod of the hydraulic rod, a through hole adapted to the guide rod is arranged on the top plate of the lifting mounting frame, and the stability of the lifting and moving of the lifting mounting frame is ensured through the cooperation of the guide rod and the through hole.

[0007] As a further solution of the present invention: a rotating motor is installed in the rotating power box, a driving gear is installed on the main shaft of the rotating motor, a driven gear is meshed with the side of the driving gear, the driven gear is installed on the rotating shaft, the upper end of the rotating shaft is connected to the fixed chuck, and the rotating motor is used to provide power support for the rotation of the fixed chuck.

[0008] As a further solution of the present invention: a positioning sleeve is installed on the rotating shaft above the driven gear, a support bearing is provided at the matching position between the rotating shaft and the rotating support seat, and a bearing end cover is provided at the upper end of the support bearing, and the bearing end cover is used to protect the support bearing.

[0009] As a further solution of the present invention: a translation motor is fixedly installed on the outside of the translation power box, the main shaft of the translation motor is connected to the transmission screw, bearings are provided at both ends of the transmission screw and the matching positions of the translation power box, a moving nut seat is installed on the transmission screw, and the translation motor is used to provide power support for the rotation of the transmission screw.

[0010] As a further solution of the present invention: the movable frame is an L-shaped structure, the lower end of the movable frame is fixedly connected to the movable nut seat, a movable slide groove is provided on the translational power box, the lower part of the movable frame is arranged in the movable slide groove, and a telescopic protective cover is provided in the translational power box to provide dust protection for the transmission structure in the translational power box.

[0011] As a further solution of the present invention: the grinding installation shaft is a stepped shaft structure, a connecting key is provided on the outside of the matching section between the grinding installation shaft and the grinding wheel, a matching groove adapted to the connecting key is provided in the inner hole of the grinding wheel, and a locking nut is installed at the lower end of the grinding installation shaft for fixing the grinding wheel.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art.

[0013] The utility model is provided with a rotating power box and a fixed chuck, which can vertically fix the rear axle half-shaft on the fixed chuck, and the flange end of the rear axle half-shaft is clamped and fixed by the fixed chuck. When the fixed chuck drives the rear axle half-shaft to rotate, the center of gravity is located at the lower half of the workpiece, which can effectively reduce the swinging of the free end of the rear axle half-shaft during the rotation process, thereby improving the grinding quality.

[0014] The arc-shaped edge is arranged at the upper and lower edge positions of the polishing wheel, and can be well matched with the shaft body and the flange transition position of the rear axle half shaft during the polishing process, so that the transition arc can be polished and treated, stress concentration at the transition arc position is reduced, the upper end surface of the flange can also be polished and treated, and the polishing effect is improved.

[0015] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. DRAWINGS

[0016] The drawings are part of the present application and serve to provide further understanding of the utility model, the schematic embodiments of the utility model and the description thereof serve to explain the utility model, but do not constitute improper limitation on the utility model. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is an internal schematic view of the rotary power box of the utility model;

[0020] Figure 4 It is an internal schematic view of the translation power box of the utility model;

[0021] Figure 5 It is a polishing wheel installation schematic view of the utility model.

[0022] In the drawings: 1, rotary power box; 2, rotating support seat; 3, fixed chuck; 4, fixed jaw; 5, translation power box; 6, moving sliding groove; 7, telescopic protective cover; 8, translation motor; 9, moving frame; 10, hydraulic rod; 11, polishing wheel; 12, lifting mounting frame; 13, guide rod; 14, polishing motor; 15, shaft coupling; 16, arc-shaped edge; 17, polishing installation shaft; 18, rotary motor; 19, driving gear; 20, driven gear; 21, positioning shaft sleeve; 22, support bearing; 23, bearing end cover; 24, transmission lead screw; 25, moving nut seat; 26, connecting key; 27, matching groove; 28, locking nut.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] like Figures 1 to 5 As shown, a grinding device for the production of tractor rear axle half-axles comprises a rotating power box 1 and a rotating support seat 2. A rotating support seat 2 is provided above the rotating power box 1. A fixed chuck 3 is rotatably installed on the rotating support seat 2. A fixed claw 4 is installed on the fixed chuck 3. A translation power box 5 is provided on the side of the rotating power box 1. A movable frame 9 is matched with the translation power box 5. A hydraulic rod 10 is fixedly installed on the top of the movable frame 9. A lifting mounting frame 12 is fixedly installed on the lower end of the hydraulic rod 10. A grinding motor 14 is provided on the lifting mounting frame 12. The main shaft of the grinding motor 14 is connected to the upper end of the grinding mounting shaft 17 through a coupling 15. A grinding wheel 11 is installed on the grinding mounting shaft 17. Arc edges 16 are provided at the upper and lower edge positions of the grinding wheel 11. The arc edges 16 are well adapted to the shaft body and flange transition position of the rear axle half-axle.

[0026] Among them, a guide rod 13 is fixedly provided on the movable frame 9, and the guide rod 13 is arranged parallel to the telescopic rod of the hydraulic rod 10. A through hole adapted to the guide rod 13 is provided on the top plate of the lifting mounting frame 12. The cooperation between the guide rod 13 and the through hole ensures the stability of the lifting and moving of the lifting mounting frame 12.

[0027] A rotating motor 18 is installed in the rotating power box 1, and a driving gear 19 is installed on the main shaft of the rotating motor 18. A driven gear 20 is engaged with the side of the driving gear 19. The driven gear 20 is installed on the rotating shaft. The upper end of the rotating shaft is connected to the fixed chuck 3. The rotating motor 18 is used to provide power support for the rotation of the fixed chuck 3.

[0028] A positioning sleeve 21 is installed on the rotating shaft above the driven gear 20, and a support bearing 22 is provided at the matching position between the rotating shaft and the rotating support seat 2. A bearing end cover 23 is provided on the upper end of the support bearing 22. The bearing end cover 23 is used to protect the support bearing 22.

[0029] A translation motor 8 is fixedly installed on the outside of the translation power box 5. The main shaft of the translation motor 8 is connected to the transmission screw 24. Bearings are provided at both ends of the transmission screw 24 and the matching positions with the translation power box 5. A moving nut seat 25 is installed on the transmission screw 24. The translation motor 8 is used to provide power support for the rotation of the transmission screw 24.

[0030] The movable frame 9 is an L-shaped structure. The lower end of the movable frame 9 is fixedly connected to the movable nut seat 25. A movable slide 6 is provided on the translational power box 5. The lower part of the movable frame 9 is arranged in the movable slide 6. A telescopic protective cover 7 is provided in the translational power box 5 to provide dust protection for the transmission structure in the translational power box 5.

[0031] The grinding installation shaft 17 is a stepped shaft structure. A connecting key 26 is provided on the outside of the matching section between the grinding installation shaft 17 and the grinding wheel 11. A matching groove 27 that matches the connecting key 26 is provided in the inner hole of the grinding wheel 11. A locking nut 28 is installed at the lower end of the grinding installation shaft 17 for fixing the grinding wheel 11.

[0032] The working principle of the present invention is as follows: when grinding the rear axle half shaft, the flange end of the rear axle half shaft is clamped and fixed by the fixing chuck 3, and the grinding wheel 11 adapted to the rear axle half shaft is fixedly mounted on the lower end of the grinding mounting shaft 17. The grinding wheel 11 is installed and positioned by the matching groove 27 and the connecting key 26, and the grinding wheel 11 is locked by the locking nut 28. The grinding motor 14 drives the grinding mounting shaft 17 to rotate through the coupling 15, thereby driving the grinding wheel 11 to rotate.

[0033] The rotary motor 18 works, and through the meshing of the driving gear 19 and the driven gear 20, it drives the fixed chuck 3 to rotate, thereby driving the rear axle half shaft to rotate. The translation motor 8 drives the transmission screw 24 to rotate. During the rotation of the transmission screw 24, the mobile nut seat 25 moves horizontally along the transmission screw 24, and the mobile frame 9 moves horizontally along the mobile slide 6, thereby realizing the horizontal adjustment of the mobile frame 9, so that the grinding wheel 11 contacts the rear axle half shaft. The hydraulic rod 10 works, driving the lifting mounting frame 12 to move up and down, thereby driving the grinding wheel 11 to move up and down, and grinding the rear axle half shaft;

[0034] The utility model is provided with a rotating power box 1 and a fixed chuck 3, which can vertically fix the rear axle half-shaft on the fixed chuck 3, and the flange end of the rear axle half-shaft is clamped and fixed by the fixed chuck 3. In the process of the fixed chuck 3 driving the rear axle half-shaft to rotate, the center of gravity is located in the lower half of the workpiece, which can effectively reduce the swinging of the free end of the rear axle half-shaft during the rotation, thereby improving the grinding quality. The upper and lower edge positions of the grinding wheel 11 are provided with arc edges 16, which can be well adapted to the shaft body and flange transition position of the rear axle half-shaft during the grinding process, not only can the transition arc be ground to reduce stress concentration at the transition arc position, but also the upper end face of the flange can be ground to improve the grinding effect. The overall structure of the device is simple and easy to use, which can effectively improve the grinding efficiency of the rear axle half-shaft.

[0035] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A grinding device for producing a tractor rear axle half shaft, comprising a rotary power box (1) and a rotary support seat (2), characterized in that: A rotating support seat (2) is provided above the rotating power box (1), a fixed chuck (3) is rotatably mounted on the rotating support seat (2), a fixed claw (4) is mounted on the fixed chuck (3), a translation power box (5) is provided on the side of the rotating power box (1), a movable frame (9) is provided on the translation power box (5), a hydraulic rod (10) is fixedly mounted on the top of the movable frame (9), a lifting mounting frame (12) is fixedly mounted on the lower end of the hydraulic rod (10), a grinding motor (14) is provided on the lifting mounting frame (12), a main shaft of the grinding motor (14) is connected to the upper end of the grinding mounting shaft (17) through a coupling (15), a grinding wheel (11) is mounted on the grinding mounting shaft (17), and arc edges (16) are provided at the upper and lower edge positions of the grinding wheel (11).

2. A grinding device for producing tractor rear axle half shafts according to claim 1, characterized in that: A guide rod (13) is fixedly provided on the movable frame (9), and the guide rod (13) is arranged in parallel with the telescopic rod of the hydraulic rod (10). A through hole adapted to the guide rod (13) is provided on the top plate of the lifting mounting frame (12).

3. A grinding device for producing tractor rear axle half shafts according to claim 2, characterized in that: A rotating motor (18) is installed in the rotating power box (1), a driving gear (19) is installed on the main shaft of the rotating motor (18), a driven gear (20) is meshed with the side of the driving gear (19), and the driven gear (20) is installed on the rotating shaft, and the upper end of the rotating shaft is connected to the fixed chuck (3).

4. A grinding device for producing tractor rear axle half shafts according to claim 3, characterized in that: A positioning sleeve (21) is installed on the rotating shaft above the driven gear (20), a support bearing (22) is provided at the matching position between the rotating shaft and the rotating support seat (2), and a bearing end cover (23) is provided at the upper end of the support bearing (22).

5. A grinding device for producing tractor rear axle half shafts according to claim 4, characterized in that: A translation motor (8) is fixedly mounted on the outer side of the translation power box (5); a main shaft of the translation motor (8) is connected to a transmission screw (24); bearings are provided at the matching positions of the two ends of the transmission screw (24) and the translation power box (5); and a moving nut seat (25) is mounted on the transmission screw (24).

6. A grinding device for producing tractor rear axle half shafts according to claim 5, characterized in that: The movable frame (9) is an L-shaped structure. The lower end of the movable frame (9) is fixedly connected to the movable nut seat (25). A movable slide groove (6) is provided on the translational force box (5). The lower part of the movable frame (9) is arranged in the movable slide groove (6). A telescopic protective cover (7) is provided in the movable slide groove (6).

7. A grinding device for producing tractor rear axle half shafts according to claim 6, characterized in that: The grinding installation shaft (17) is a stepped shaft structure. A connecting key (26) is provided on the outside of the matching section between the grinding installation shaft (17) and the grinding wheel (11). A matching groove (27) matching the connecting key (26) is provided in the inner hole of the grinding wheel (11). A locking nut (28) is installed at the lower end of the grinding installation shaft (17).

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