CN220019180U - Motor shaft strength test fixture - Google Patents

Abstract

The utility model discloses a motor shaft strength test fixture, which relates to the technical field of motor shaft strength test and comprises a base and a supporting plate fixedly arranged at the top of the base, wherein a damping shaft is fixedly arranged in the supporting plate, a damping sleeve is sleeved outside the damping shaft in a rotating manner, two symmetrically arranged mounting seats are fixedly arranged on the outer side wall of the damping sleeve, a positioning frame is fixedly arranged at the upper end of the side wall of the mounting seat in a penetrating manner, a clamping mechanism for fixing a motor shaft is arranged in the positioning frame, a fixing plate is fixedly arranged at the upper end of the outer side of the mounting seat, a connecting plate is fixedly arranged in the positioning frame, a cross rod is rotatably arranged in the connecting plate in a penetrating manner, and a driving locking unscrewing mechanism is arranged between the cross rod and the fixing plate. The utility model can only need the manual work to install the motor shaft during the test work, does not need to be disassembled again after the test, reduces the manual operation and improves the test efficiency.

Description

Motor shaft strength test fixture

Technical Field

The utility model relates to the technical field of motor shaft strength test, in particular to a motor shaft strength test fixture.

Background

The motor shaft refers to the elongated object in the center of the rotating motor, also called the motor shaft or rotor, which is a very important component because it is subjected to the forces and torques generated by the motor.

The strength of the motor shaft and the like need to be detected in the production process of the motor shaft, the use strength of the motor shaft is reduced due to air holes generated in the manufacturing process of the motor shaft is avoided as much as possible, the shaft is required to be clamped and fixed when the strength of the motor shaft is detected, the shaft is required to be disassembled and taken down after the detection is finished, the manual operation is required, and when the number of the motor shafts required to be tested is large, the shaft is required to be frequently disassembled and assembled manually, so that the time is consumed, and the test efficiency is reduced.

Therefore, we propose a motor shaft strength test fixture to solve the above-mentioned problems.

Disclosure of Invention

The present utility model has been made in view of the above-mentioned problems with the existing motor shaft strength test jigs.

Therefore, the utility model aims to provide a motor shaft strength test fixture, which solves the problems that when the number of motor shafts to be tested is large, the manual and frequent shaft dismounting operation is needed, the time is consumed and the test efficiency is reduced.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a motor shaft strength test fixture, includes base and the fixed backup pad that locates the base top, the inside of backup pad is fixed to be equipped with the damping axle, the outside of damping axle rotates the cover and is equipped with the damping sleeve, the lateral wall of damping sleeve is fixed to be equipped with two mount pads that symmetry set up, the lateral wall upper end of mount pad is fixed to wear to be equipped with the locating rack, the inside of locating rack is equipped with the fixture that is used for fixing the motor shaft, two mount pads rotate and carry out autonomous positioning after rotating around the damping axle;

the fixing plate is fixedly arranged at the upper end of the outer side of the mounting seat, the connecting plate is fixedly arranged in the positioning frame, the cross rod is penetrated in the connecting plate in a rotating mode, and the driving locking unscrewing mechanism is arranged between the cross rod and the fixing plate.

Preferably, the fixture includes a plurality of lead screws that encircle the symmetry setting, the lead screw rotates to be located the inside of locating rack, and the wall thread bush is equipped with the clamp splice, fixed being equipped with the telescopic link between the inner wall of clamp splice and locating rack, a plurality of be equipped with synchronous drive mechanism between the lead screw, the cooperation of lead screw and clamp splice can be with the stable centre gripping of motor shaft between a plurality of clamp splice, fixes the position of motor shaft.

Preferably, the synchronous transmission mechanism comprises a plurality of first bevel gears, the first bevel gears are fixedly connected with the screw rods, a second bevel gear is fixedly arranged at one end of the cross rod, the plurality of first bevel gears are meshed with the second bevel gear, the first bevel gears and the second bevel gears are meshed, and the screw rods can be driven to rotate simultaneously, so that the clamping blocks clamp and fix the motor shaft.

Preferably, the locking and unscrewing mechanism comprises a rotating rod, the rotating rod is rotationally arranged in the fixed plate, a round gear is fixedly arranged at one end of the rotating rod, a third bevel gear is fixedly arranged at one end, close to the other end, of the rotating rod and the cross rod, the two third bevel gears are meshed, the outer side of the supporting plate is fixedly provided with a first arc-shaped rack and a second arc-shaped rack which are symmetrically arranged, the round gear is matched with the first arc-shaped rack and the second arc-shaped rack, the round gear and the first arc-shaped rack are arranged, a plurality of screw rod driving clamping blocks are in contact with the round gear to fix a motor shaft, and when the round gear is in contact with the second arc-shaped rack, the screw rod is reversed, the clamping blocks are far away from the motor shaft, so that the motor shaft falls independently to complete disassembly, and manual operation is reduced.

Further, the base is L-shaped, a plurality of mounting bolts are arranged at the lower end in a threaded manner, and the integral position of the clamp can be fixed.

Preferably, the locating frame penetrates through the upper end of the side wall of the mounting seat.

In the technical scheme, the utility model has the technical effects and advantages that:

1. according to the utility model, the motor shaft can be stably clamped through the base, the support plate, the damping shaft, the damping sleeve, the mounting seat, the positioning frame and the clamping mechanism, and the strength test of the motor shaft can be completed by extrusion contact with the test assembly.

2. According to the utility model, through the fixed plate, the transverse plate, the synchronous transmission mechanism and the driving locking unscrewing mechanism, the motor shaft can be clamped, fixed and unscrewed and disassembled only by rotating the two mounting seats, so that frequent manual disassembly and assembly work on the shaft body is reduced, and the test clamping efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side view of the positioning frame of FIG. 1 according to the present utility model;

fig. 3 is an enlarged schematic view of the portion a of fig. 1 according to the present utility model.

Reference numerals illustrate:

1. a base; 2. a support plate; 3. a damping shaft; 4. a damping sleeve; 5. a mounting base; 6. a positioning frame; 7. a fixing plate; 8. a connecting plate; 9. a cross bar; 10. a screw rod; 11. clamping blocks; 12. a telescopic rod; 13. a first bevel gear; 14. a second bevel gear; 15. a rotating rod; 16. a circular gear; 17. a third bevel gear; 18. a first arcuate rack; 19. a second arcuate rack; 20. and (5) installing a bolt.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a motor shaft strength test fixture.

The utility model provides a motor shaft strength test fixture as shown in figures 1-3, which comprises a base 1 and a supporting plate 2 fixedly arranged at the top of the base 1, wherein the base 1 is L-shaped, a plurality of mounting bolts 20 are arranged at the lower end in a threaded manner in a penetrating manner, a damping shaft 3 is fixedly arranged in the supporting plate 2, a damping sleeve 4 is sleeved on the outer side of the damping shaft 3 in a rotating manner, two symmetrically arranged mounting seats 5 are fixedly arranged on the outer side wall of the damping sleeve 4, a positioning frame 6 is fixedly arranged at the upper end of the side wall of the mounting seat 5 in a penetrating manner, the positioning frame 6 penetrates through the upper end of the side wall of the mounting seat 5, a fixing plate 7 is fixedly arranged at the upper end of the outer side of the mounting seat 5, a connecting plate 8 is fixedly arranged in the positioning frame 6, and a cross rod 9 is rotatably arranged in the connecting plate 8 in a penetrating manner.

Before the strength test of the motor shaft is carried out, the base 1 and the integral clamp can be fixed at the test position through the mounting bolts 20, then the motor shaft is inserted into the positioning frame 6, the motor shaft is fixed in position, and the mounting seat 5 can be sequentially clamped and fixed and unscrewed to be detached through the relative rotation of the damping sleeve 4 and the damping shaft 3 in the rotation process, so that the steps of mounting and dismounting the shaft body in the motor shaft test process are reduced, and the clamp use convenience and the test efficiency are improved.

In order to perform stable clamping and fixing on a motor shaft, as shown in fig. 1-3, a clamping mechanism for fixing the motor shaft is arranged in the positioning frame 6, the clamping mechanism comprises a plurality of screw rods 10 which are arranged in a surrounding symmetrical mode, the screw rods 10 are rotationally arranged in the positioning frame 6, clamping blocks 11 are sleeved on the screw rods in a threaded mode, telescopic rods 12 are fixedly arranged between the clamping blocks 11 and the inner walls of the positioning frame 6, a synchronous transmission mechanism is arranged between the screw rods 10 and comprises a plurality of first bevel gears 13, the first bevel gears 13 are fixedly connected with the screw rods 10, a second bevel gear 14 is fixedly arranged at one end of the cross rod 9, and the first bevel gears 13 and the second bevel gears 14 are meshed.

When one end of the motor shaft stretches into the positioning frame 6, at the moment, the first bevel gear 13 is meshed with the second bevel gear 14, the driving cross rod 9 drives the plurality of screw rods 10 to rotate, so that the plurality of clamping blocks 11 are close to the motor shaft under the connection limit of the telescopic rod 12, and finally clamp and fix the motor shaft, and the stability of the motor shaft in the testing process is guaranteed.

And in order that mount pad 5 can carry out the clamp fastening of motor shaft in proper order and unscrew the dismantlement in the rotation in-process, as shown in fig. 1 and 3, be equipped with the drive locking between horizontal pole 9 and the fixed plate 7 and unscrew the mechanism, the drive locking unscrew the mechanism including bull stick 15, in the fixed plate 7 was located in bull stick 15 rotation, and one end is fixed and is equipped with round gear 16, bull stick 15 and horizontal pole 9 are close to the one end and all are fixed and be equipped with third bevel gear 17 mutually, two third bevel gear 17 meshing settings, the outside of backup pad 2 is fixed and is equipped with first arc rack 18 and the second arc rack 19 that two symmetries set up, round gear 16 and first arc rack 18 and second arc rack 19 cooperation setting.

When the motor shaft inserts inside locating rack 6, two mount pads 5 begin to rotate this moment for circular gear 16 meshes with first arc rack 18, thereby under the meshing of third bevel gear 17, horizontal pole 9 can be driven and rotate, make clamp splice 11 carry out stable centre gripping to the motor shaft, carry out intensity test to the motor shaft afterwards, continue to rotate mount pad 5 after the test, make circular gear 16 mesh with below second arc rack 19, circular gear 16 reversal this moment, with this drive horizontal pole 9 reversal, thereby a plurality of lead screws 10 drive clamp splice 11 keep away from the motor shaft, can make the motor shaft accomplish the whereabouts through self gravity, make operating personnel reduce the centre gripping dismantlement operation to the motor shaft, efficiency and the convenience of motor shaft intensity test have been improved.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (6)

1. The utility model provides a motor shaft strength test fixture, includes base (1) and fixes locating backup pad (2) at base (1) top, its characterized in that, the inside of backup pad (2) is fixed to be equipped with damping axle (3), the outside of damping axle (3) rotates the cover and is equipped with damping sleeve (4), the lateral wall of damping sleeve (4) is fixed to be equipped with two mount pads (5) that set up symmetrically, the lateral wall upper end of mount pad (5) is fixed wears to be equipped with locating rack (6), the inside of locating rack (6) is equipped with the fixture that is used for fixing the motor shaft;

the fixing device is characterized in that a fixing plate (7) is fixedly arranged at the upper end of the outer side of the mounting seat (5), a connecting plate (8) is fixedly arranged in the locating frame (6), a cross rod (9) is arranged in the connecting plate (8) in a rotating mode, and a driving locking unscrewing mechanism is arranged between the cross rod (9) and the fixing plate (7).

2. The motor shaft strength test fixture according to claim 1, wherein the clamping mechanism comprises a plurality of screw rods (10) which are arranged in a surrounding symmetry manner, the screw rods (10) are rotationally arranged inside the positioning frame (6), clamping blocks (11) are sleeved on the screw threads of the rod walls, telescopic rods (12) are fixedly arranged between the clamping blocks (11) and the inner walls of the positioning frame (6), and a synchronous transmission mechanism is arranged between the screw rods (10).

3. The motor shaft strength test fixture according to claim 2, wherein the synchronous transmission mechanism comprises a plurality of first bevel gears (13), the first bevel gears (13) are fixedly connected with a screw rod (10), one end of the cross rod (9) is fixedly provided with a second bevel gear (14), and the plurality of first bevel gears (13) are meshed with the second bevel gear (14).

4. The motor shaft strength test fixture according to claim 1, wherein the driving locking unscrewing mechanism comprises a rotating rod (15), the rotating rod (15) is rotationally arranged in the fixed plate (7), a round gear (16) is fixedly arranged at one end of the rotating rod, a third bevel gear (17) is fixedly arranged at the position, close to one end, of the rotating rod (15) and the cross rod (9), the two third bevel gears (17) are meshed, a first arc-shaped rack (18) and a second arc-shaped rack (19) which are symmetrically arranged are fixedly arranged on the outer side of the supporting plate (2), and the round gear (16) is matched with the first arc-shaped rack (18) and the second arc-shaped rack (19).

5. The motor shaft strength test fixture according to claim 1, wherein the base (1) is L-shaped, and a plurality of mounting bolts (20) are threaded at a lower end thereof.

6. The motor shaft strength test fixture according to claim 1, wherein the positioning frame (6) penetrates through the upper end of the side wall of the mounting seat (5).