Motor test fixture

Abstract

The utility model discloses a motor test fixture which comprises an operation table, the operation table is provided with installation grooves for installing a plurality of groups of bases side by side, two groups of bases are provided with a group of clamping assemblies, each clamping assembly comprises a supporting frame, a clamping ring and a clamping seat, and the supporting frames and the clamping seats are respectively installed on two sides of the bases. One end of the clamping ring is hinged to the end of the supporting seat, a tooth buckle is arranged on the outer side wall of the other end of the clamping ring, a clamping groove allowing the other end of the clamping ring to be embedded is formed in the inner side wall of the clamping seat, a cavity communicated with the clamping groove is formed in the clamping seat, a clamping block is rotationally connected to one side of the cavity, and teeth buckled with the tooth buckle are arranged on the inner side wall of the clamping block. When the clamping ring rotates clockwise and is embedded into the clamping groove, the clamping ring cannot rotate anticlockwise through buckling of the tooth buckle and the teeth and limitation of the limiting mechanism, and clamping and fixing of the motor are achieved. The tooth buckle and the teeth can be rapidly separated through cooperation of the rope and the pull ring, so that the clamping ring can rotate anticlockwise, and clamping and fixing of the motor are relieved.

Description

Technical Field

[0001] This utility model relates to the field of motor test fixture technology, and more specifically, to a motor test fixture. Background Technology

[0002] A high-pressure plunger rotary motor is a hydraulic drive device mainly used in heavy machinery such as excavators to achieve the rotational movement of the equipment. The working principle of a high-pressure plunger rotary motor relies primarily on the conversion of hydraulic force and the movement of the plunger. Specifically, the high-pressure plunger rotary motor drives the plunger to reciprocate through externally supplied hydraulic pressure, and then converts this linear motion into the circular motion of the output shaft through a motion conversion mechanism.

[0003] After the high-pressure plunger rotary motor is assembled, it needs to undergo multiple tests. Before testing the high-pressure plunger rotary motor, a test fixture is often used to clamp and fix it. For example, Chinese utility model publication CN214135724U discloses a split-type motor test fixture, which includes a base. The four corners of the bottom of the base are connected to support feet. The top of the base has a shaft hole in the middle. The top of the base has screws connected to both sides of the shaft hole. The top of the base is connected to a support plate by two screws. The two screws are connected to a clamping plate on the top of the support plate. Nuts are connected to the screws on the top of the clamping plate. The top of the support plate has a groove in the middle. The clamping plate has a clamping groove in the middle.

[0004] The above solution can clamp and fix the motor, but the clamping time required is long, resulting in low testing efficiency.

[0005] Therefore, a new solution is needed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a motor testing fixture.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A motor testing fixture includes an operating table with mounting slots for multiple sets of bases to be installed side-by-side. The bases and the operating table are detachably connected. Two sets of bases are each equipped with a clamping assembly, which is located on both sides of the motor to clamp and fix it. Each clamping assembly includes a support frame, a retaining ring, and a retaining seat. The support frame and retaining seat are respectively installed on both sides of the base. One end of the retaining ring is hinged to the end of the support frame. The outer side wall of the other end of the retaining ring has a toothed buckle. The inner side wall of the retaining seat has a groove for the other end of the retaining ring to be inserted into. The interior of the retaining seat has a cavity communicating with the groove. A retaining block is rotatably connected to one side of the cavity. The inner side wall of the retaining block has teeth that engage with the toothed buckle.

[0009] Furthermore, the cavity is provided with a limiting mechanism for restricting the rotation of the locking block. The limiting mechanism includes a positioning post, a telescopic rod, and a spring. The positioning post is fixedly installed on one side of the cavity and abuts against the inner sidewall of one end of the locking block. The telescopic rod is located on the other side of the cavity, and its two ends are respectively fixed to the outer sidewall of the locking block and the sidewall of the cavity. A spring is sleeved on the telescopic rod.

[0010] Furthermore, a rope is connected to the outer wall of one end of the card block, the end of the rope passes through the card seat and extends outside the card seat, and a pull ring is installed at the end of the rope.

[0011] Furthermore, a limiting block is installed on the other side of the cavity, the limiting block has a limiting groove, and the locking block has a protrusion corresponding to the limiting groove.

[0012] Furthermore, a rubber pad is installed on the inner wall of the retaining ring.

[0013] Furthermore, the buckle is provided in three sets, arranged side by side, and the teeth are provided in three sets, arranged side by side.

[0014] Furthermore, through holes are provided at each of the four corners of the base, and screw holes corresponding to the through holes are provided in the mounting groove. The base is installed on the operating table by means of bolts passing through the through holes and then screwing into the screw holes.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, by adjusting the installation position of the base on which the clamping components are installed, motors of different sizes can be adapted to clamp and fix motors of different sizes; at the same time, when clamping and fixing the motor, the two sets of clamping components are located on both sides of the motor respectively, clamping and fixing the motor from both sides simultaneously to improve the stability of clamping.

[0017] 2. In this utility model, when the retaining ring rotates clockwise and is inserted into the retaining groove, the retaining ring cannot rotate counterclockwise due to the locking mechanism of the toothed buckle and the toothed teeth, thus achieving quick clamping and fixing of the motor; at the same time, the toothed buckle and the toothed teeth can be quickly separated by the cooperation of the rope and the pull ring, so that the retaining ring can rotate counterclockwise, thereby releasing the clamping and fixing of the motor. Attached Figure Description

[0018] Figure 1 This is a top view of one of the motor test fixtures in this embodiment;

[0019] Figure 2 This is a schematic diagram of one structure of the clamping component in this embodiment;

[0020] Figure 3 This is a cross-sectional view of the card holder in this embodiment;

[0021] Figure 4 This is a schematic diagram of a connection structure between the teeth and the buckle in this embodiment;

[0022] Figure 5 This is a schematic diagram illustrating the use of the motor test fixture in this embodiment.

[0023] Reference numerals: 1. Operating table; 2. Base; 3. Mounting groove; 4. Clamping assembly; 401. Support frame; 402. Snap ring; 403. Snap seat; 404. Snap tooth; 405. Cavity; 406. Snap block; 407. Snap tooth; 408. Positioning post; 409. Telescopic rod; 410. Spring; 411. Rope; 412. Pull ring; 413. Limiting block; 414. Limiting groove; 415. Protrusion; 416. Rubber pad; 417. Rotating shaft; 418. Hook; 419. Through hole; 5. Screw hole; 6. Bolt; 7. Motor; 8. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: A motor test fixture, such as Figures 1-5As shown, the system includes an operating table 1 with mounting slots 3 for mounting multiple sets of bases 2. When the multiple sets of bases 2 are installed in the mounting slots 3, they are arranged side by side and are detachably connected to the operating table 1. Each set of bases 2 is equipped with a clamping assembly 4 for clamping and fixing a motor 8. In use, the installation position of the bases 2 with the clamping assemblies 4 is adjusted to accommodate motors 8 of different sizes, allowing for clamping and fixing of motors 8 of different sizes. Simultaneously, when clamping and fixing the motor 8, the two sets of clamping assemblies 4 are positioned on both sides of the motor 8, clamping and fixing the motor 8 from both sides simultaneously to improve clamping stability.

[0026] Furthermore, such as Figure 1 and Figure 5 As shown, through holes 5 are provided at the four corners of the base 2, and screw holes 6 corresponding to the through holes 5 are provided in the mounting groove 3. The base 2 is installed on the operating table 1 by means of bolts 7 passing through the through holes 5 and screwing into the screw holes 6.

[0027] In use, the installation position of the base 2 with the clamping assembly 4 is determined according to the size of the motor 8, so that the clamping assembly 4 is on both sides of the motor 8. After the installation position of the base 2 with the clamping assembly 4 is determined, the base 2 with the clamping assembly 4 and the base 2 without the clamping assembly 4 are fixedly installed on the control panel by screwing the bolts 7 into the screw holes 6. The screwing engagement of the bolts 7 and the screw holes 6 allows for quick assembly and disassembly of the base 2, thereby facilitating the adjustment of the installation position of the base 2.

[0028] Furthermore, such as Figures 2-4 As shown, the clamping assembly 4 includes a support frame 401, a retaining ring 402, and a retaining base 403. The support frame 401 and the retaining base 403 are respectively installed on both sides of the base 2. The area between the support frame 401 and the retaining base 403 is used to place the motor 8. The retaining ring 402 has an arc-shaped structure. One end of the retaining ring 402 is hinged to the end of the support frame 401, so that the retaining ring 402 can rotate clockwise or counterclockwise about the hinge axis. The outer side wall of the other end of the retaining ring 402 The card holder 403 has a toothed buckle 404 and a slot 405 for the other end of the card ring 402 to be inserted into the inner wall of the card holder 403. The inner wall of the card holder 403 has a cavity 406 that communicates with the slot 405. A card block 407 is rotatably connected to one side of the cavity 406. That is, a rotating shaft 418 is installed at the corner of one side of the cavity 406. The card block 407 is rotatably connected to the rotating shaft 418. The inner wall of the card block 407 has teeth 408 that engage with the toothed buckle 404.

[0029] In use, first place the motor 8 between the support frame 401 and the clamping seat 403, then rotate the retaining ring 402 clockwise so that the other end of the retaining ring 402 enters the clamping groove 405 of the clamping seat 403. Since the teeth 404 and 408 are both helical tooth structures, when the retaining ring 402 rotates clockwise, the teeth 404 pushes open the teeth 408 and the clamping block 407, allowing the retaining ring 402 to rotate continuously. During the rotation, the space between the retaining ring 402 and the base 2 becomes smaller and smaller until the retaining ring 402 abuts against the motor 8 and stops rotating. At this time, due to the mutual abutment of the teeth 404 and 408 and the action of the limiting mechanism, the retaining ring 402 cannot rotate counterclockwise, thus achieving clamping and fixing of the motor 8.

[0030] Furthermore, such as Figure 3 As shown, the limiting mechanism for restricting the rotation of the locking block 407 includes a positioning post 409, a telescopic rod 410, and a spring 411. The positioning post 409 is fixedly installed on one side of the cavity 406. The telescopic rod 410 has an arc-shaped structure and is located on the other side of the cavity 406. That is, one end of the telescopic rod 410 is fixed to the outer wall of the locking block 407, and the other end of the telescopic rod 410 is fixed to the side wall of the cavity 406. The spring 411 is sleeved on the telescopic rod 410 and is in a compressed state.

[0031] Because the spring 411 is in a compressed state, under the force of the spring 411, the locking block 407 rotates counterclockwise until its inner sidewall comes into contact with the positioning post 409 and then stops. During the clockwise rotation of the retaining ring 402, when the teeth of the buckle 404 correspond to the teeth of the tooth 408, the locking block 407 will be pushed open, that is, the locking block 407 rotates clockwise at a certain angle, the spring 411 is further compressed, so that the retaining ring 402 can rotate continuously. When the teeth of the tooth 408 correspond to the tooth groove of the buckle 404, under the elastic force of the spring 411, the locking block 407 rotates counterclockwise and returns to contact the positioning post 409, locking the buckle 404 and the tooth 408 together, so that the buckle 404 and the tooth 408 cannot be separated. At this time, the retaining ring 402 cannot rotate counterclockwise.

[0032] Furthermore, a rope 412 is connected to the outer wall of one end of the locking block 407. The end of the rope 412 passes through the locking seat 403 and extends outside the locking seat 403. A pull ring 413 is installed at the end of the rope 412. When it is necessary to release the clamping fixation of the motor 8, the rope 412 and the pull ring 413 can be used to separate the buckle 404 and the teeth 408, so that the locking ring 402 can rotate counterclockwise.

[0033] Specifically, pulling the pull ring 413 outward causes the pull ring 413 to drive the locking block 407 to rotate clockwise by a certain angle through the rope 412, causing the teeth 408 and the buckle 404 to separate. At this time, the locking ring 402 can be rotated counterclockwise to disengage it from the slot 405, thereby releasing the clamping and fixing of the motor 8.

[0034] Preferably, a limiting block 414 is installed on the other side of the cavity 406, and a limiting groove 415 is provided on the limiting block 414. A protrusion 416 is provided on the locking block 407 corresponding to the position of the limiting groove 415. By setting the limiting groove 415 and the protrusion 416, the rotation angle of the locking block 407 can be limited.

[0035] Preferably, the outer wall of the card holder 403 is provided with a hook 419; when the motor 8 is released from clamping, the pull ring 413 can be hooked onto the hook 419 so that the teeth 408 and the buckles 404 remain separated, which facilitates operation with both hands and makes it easy to remove the card ring 402 from the card slot 405.

[0036] Furthermore, such as Figure 5 The buckle 404 on the outer wall of the retaining ring 402 is provided in three sets, arranged side by side. Correspondingly, the teeth 408 on the retaining block 407 are also provided in three sets, arranged side by side, that is, one set of buckles 404 corresponds to one set of teeth 408. By adopting the above structure, the buckling stability is improved by increasing the number of buckles 404 and teeth 408 that are engaged.

[0037] Furthermore, such as Figure 2 and Figure 3 As shown, a rubber pad 417 is installed on the inner wall of the retaining ring 402. By setting the rubber pad 417, on the one hand, flexible clamping is achieved by utilizing the elastic deformation of the rubber pad 417, ensuring sufficient clamping force while avoiding unnecessary damage caused by rigid clamping; on the other hand, the rubber pad 417 has a shock-absorbing effect, eliminating or reducing the impact of vibration generated by the operation of the motor 8 on the engagement of the teeth 404 and 408. At the same time, the elastic force of the spring 411 should be greater than the force generated by the vibration of the motor 8.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A motor testing fixture, comprising an operating table (1), characterized in that, The operating table (1) has mounting slots (3) for multiple sets of bases (2) to be installed side by side. The bases (2) and the operating table (1) are detachably connected. Two sets of bases (2) are equipped with a set of clamping components (4). The two sets of clamping components (4) are located on both sides of the motor (8) to clamp and fix the motor (8). The clamping components (4) include a support frame (401), a retaining ring (402), and a retaining seat (403). The support frame (401) and the retaining seat (403) are respectively installed on both sides of the base (2). One end of the ring (402) is hinged to the end of the support frame (401). The outer side wall of the other end of the ring (402) is provided with a toothed buckle (404). The inner side wall of the card seat (403) is provided with a card groove (405) for the other end of the ring (402) to be inserted. The inside of the card seat (403) is provided with a cavity (406) that communicates with the card groove (405). A card block (407) is rotatably connected to one side of the cavity (406). The inner side wall of the card block (407) is provided with teeth (408) that engage with the toothed buckle (404).

2. The motor testing fixture according to claim 1, characterized in that, The cavity (406) is provided with a limiting mechanism for restricting the rotation of the locking block (407). The limiting mechanism includes a positioning post (409), a telescopic rod (410), and a spring (411). The positioning post (409) is fixedly installed on one side of the cavity (406) and abuts against the inner sidewall of one end of the locking block (407). The telescopic rod (410) is located on the other side of the cavity (406). The two ends of the telescopic rod (410) are respectively fixed to the outer sidewall of the locking block (407) and the sidewall of the cavity (406). The spring (411) is sleeved on the telescopic rod (410).

3. A motor testing fixture according to claim 1, characterized in that, A rope (412) is connected to the outer wall of one end of the card block (407). The end of the rope (412) passes through the card seat (403) and extends to the outside of the card seat (403). A pull ring (413) is installed at the end of the rope (412).

4. A motor testing fixture according to claim 3, characterized in that, A limiting block (414) is installed on the other side of the cavity (406). A limiting groove (415) is provided on the limiting block (414), and a protrusion (416) corresponding to the limiting groove (415) is provided on the locking block (407).

5. A motor testing fixture according to claim 1, characterized in that, A rubber pad (417) is installed on the inner wall of the retaining ring (402).

6. A motor testing fixture according to claim 1, characterized in that, The teeth (404) are arranged in three sets, side by side, and the teeth (408) are arranged in three sets, side by side.

7. A motor testing fixture according to claim 1, characterized in that, The base (2) has through holes (5) at each of its four corners. The mounting groove (3) has screw holes (6) corresponding to the through holes (5). The base (2) is installed on the operating table (1) by passing a bolt (7) through the through hole (5) and then screwing it into the screw hole (6).

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