Small motor load test bench

Abstract

The utility model relates to the field of electromechanical technology, in particular to a small motor load test bench, which comprises a mounting base, a clamping mechanism and a lifting mechanism, the mounting base is arranged at the bottom of the test bench, a mounting hole is formed in the mounting base, and the clamping mechanism is mounted on the mounting base through the mounting hole; the clamping mechanism comprises a left clamping block and a right clamping block. The opposite faces of the left clamping block and the right clamping block are provided with semicircular grooves so as to stably clamp a motor to be tested. The lifting mechanism comprises a steering shaft connected with an output shaft of the motor in an inserted mode, the end, away from the motor, of the steering shaft is connected with a lead screw, the lead screw is connected with a moving block, and the top end of the moving block is fixedly connected with a containing base for containing the balancing weight. The device can be adapted to various motors of different models, so that one test bench can meet the test requirements of more types of motors, and the utilization rate and the practicability of the test bench are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromechanics, concretely relates to a small motor weight test bench. BACKGROUND

[0002] The motor is a kind of electromagnetic device to realize electric energy conversion or transmission according to electromagnetic induction law, and its main function is to generate driving torque as the power source of electric appliance or various machines.In the production process of electronic products, whether the weight performance of motor meets the weight requirement of product is very important, because the unqualified weight of motor will affect the quality and precision of product.However, the motor load detection device in the prior art is complex in structure, and the replacement of motor to be tested is not convenient, so it is necessary to develop a test device which is simple and reasonable in structure, convenient in motor replacement and flexible in size change of weight block, for testing the weight performance of motor to ensure the quality and precision of product.

[0003] Chinese patent CN208421177U discloses a motor weight test device, which installs the motor to be tested on the bottom plate through motor positioning block and guide shaft, and uses the through slot on the sliding plate and the weight block, and the bolt and nut on the top fixed plate to constitute a weight system, so that the motor output shaft is in contact with the weight block, and the test of motor weight performance is realized.The bottom plate is provided with a clamping groove, and the motor positioning block is detachably installed in the clamping groove, the output shaft of the motor is in contact with the weight block through the through slot on the sliding plate, and the top fixed plate is movably connected at the top end of the guide shaft, so that the weight block with different weights can be conveniently replaced.The sliding plate is connected to the guide shaft through a bearing and can move up and down, so that the weight block is in contact with the motor output shaft, and the support rod and support part on the bottom plate are used to support the sliding plate to ensure its stability.The whole device is simple, stable and reasonable in structure, convenient to use, has good practical performance, can conveniently test the weight of motor, and can test the motor with different weights, and the replacement of motor and test method is simple.

[0004] The motor clamping device in the patent document is relatively complex in overall structure, and according to the drawings in the specification, it can be concluded that the clamping mode between the motor and the base is still difficult to operate, and the number of motor models adapted is less, and the counterweight block in the device is not easy to take and place, and the process of replacing the counterweight block needs to go through a series of steps, and there is a possibility of improvement in the process. UTILITY MODEL CONTENTS

[0005] In view of the above problems, a small motor weight test bench is provided, which sets clamping devices and placement base, solves the problems of too few motor models adapted and too complex replacement of counterweight block.

[0006] The utility model provides a small motor weight test bench, including installation base, clamping mechanism and elevating system, installation base is located test bench bottom, and installation hole is set up on installation base, clamping mechanism is installed on installation base through installation hole, clamping mechanism includes left clamping block and right clamping block, and left clamping block and right clamping block all set up semicircular groove on the facing one side to stabilize the motor of clamping and measuring, elevating system includes the steering shaft of motor output shaft insertion, and the end away from motor of steering shaft is connected with lead screw, and the movable block is connected on lead screw, and movable block top end fixedly connected with the placement base of counterweight block placement.

[0007] Preferably, the first rack is provided at the bottom of the left clamping block, the second rack is provided at the bottom of the right clamping block, the first rack and the second rack are engaged with the gear, the center of the gear is provided with a rotating shaft, the rotating shaft penetrates through the clamping mechanism and is fixedly connected with a rotating block for the operator to hold.

[0008] Preferably, a plurality of limiting grooves are formed on the output shaft of the motor, a plurality of insertion grooves are formed on the steering shaft for the limiting grooves to be inserted, and a plurality of limiting blocks are arranged in the insertion grooves.

[0009] Preferably, a reset mechanism is arranged in the clamping mechanism; the reset mechanism comprises a guide groove and a guide rod, the guide groove is arranged on the side of the left clamping block and the right clamping block away from the semicircular groove, the guide rod is arranged on the two side walls of the clamping mechanism, and the guide rod is inserted into the guide groove; a reset spring is arranged in the guide groove.

[0010] Preferably, a limiting mechanism is arranged on the placement base; the limiting mechanism comprises a limiting hole and a limiting rod, the limiting hole is formed on the placement base, and the limiting rod is arranged above the test bench and penetrates through the limiting hole.

[0011] Preferably, a limiting block is arranged on the limiting rod.

[0012] The utility model has the beneficial effects compared with prior art:

[0013] 1. The utility model discloses a plurality of installation holes are arranged on the installation base, and a plurality of clamping mechanisms can be installed on the installation base through the installation holes, thereby improving the applicability and flexibility of the test bench. This design can adapt to motors of various models, breaking through the limitation of fewer motor models in the prior art, so that one test bench can meet the testing needs of more types of motors, improving the utilization rate and practicality of the test bench.

[0014] 2. The clamping mechanism of the utility model is equipped with a reset mechanism, including guide slot and guide rod, and reset spring in the guide slot. This design enables the left clamping block and the right clamping block to automatically return to the initial clamping position after loosening the motor to be tested, simplifies the operation process and improves the test efficiency. The reset mechanism reduces the manual adjustment of the operator during the test process, reduces the labor intensity, and also improves the response speed and accuracy of the clamping mechanism.

[0015] 3. The utility model discloses a limiting mechanism on the placing base, including limiting hole and limiting rod, and the limiting rod is equipped with a height limiting block. This design ensures the stability and safety of the placing base during the lifting process, prevents the placing base from exceeding the highest point of the limiting rod due to excessive movement, and avoids possible equipment damage and safety accidents. The setting of the limiting mechanism improves the reliability of the whole test bench, ensures the smooth progress of the test process, and also protects the motor to be tested and the counterweight from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of a small motor weight test bench.

[0017] Figure 2 It is a front view of a small motor weight test bench.

[0018] Figure 3 It is a three-dimensional schematic view of the clamping mechanism and lifting mechanism of a small motor weight test bench.

[0019] Figure 4 It is a structure exploded view of the lifting mechanism of a small motor weight test bench.

[0020] Figure 5 It is Figure 4 It is a local enlarged view of A in figure.

[0021] Figure 6 It is a structure exploded view of the clamping mechanism of a small motor weight test bench.

[0022] The figure mark is: 1, mounting base; 2, clamping mechanism; 21, left clamping block; 211, first rack; 22, right clamping block; 221, second rack; 23, gear; 24, rotating shaft; 25, rotating block; 3, motor; 31, limiting slot; 4, lifting mechanism; 41, steering shaft; 411, slot; 412, limiting block; 42, screw rod; 43, moving block; 44, placing base; 5, reset mechanism; 51, guide slot; 511, reset spring; 52, guide rod; 6, limiting mechanism; 61, limiting hole; 62, limiting rod; 621, height limiting block. DETAILED DESCRIPTION

[0023] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0024] Referring to Figures 1-6 As shown in the figure: a small motor weight test bench, including installation base 1, clamping mechanism 2 and lifting mechanism 4, installation base 1 is located at the bottom of test bench, installation hole is set up on installation base 1, clamping mechanism 2 is installed on installation base 1 through installation hole;The clamping mechanism 2 includes left clamping block 21 and right clamping block 22, left clamping block 21 and right clamping block 22 are all set up semicircular groove on the facing surface to stably clamp the motor 3 to be tested;The lifting mechanism 4 includes steering shaft 41 that is inserted with the output shaft of motor 3, the end of steering shaft 41 away from motor 3 is connected with lead screw 42, and moving block 43 is connected on lead screw 42, and the top end of moving block 43 is fixedly connected with the placement base 44 for placing counterweight block.

[0025] The model of motor 3 adapted in the prior art is less, and the installation mode of counterweight block is more complex, thereby leading to the whole weight test mode to be complicated. In view of this, in the utility model, the bottom of test bench is provided with installation base 1, a plurality of installation holes are set up on installation base 1, clamping mechanism 2 is provided with a plurality of installation holes, and is installed on installation base 1 through installation hole, left clamping block 21 and right clamping block 22 are arranged in clamping mechanism 2, and left clamping block 21 and right clamping block 22 can be close to or away from each other along the direction of the bottom edge of clamping mechanism 2. Semicircular grooves are set up on the facing surface of left clamping block 21 and right clamping block 22, which are used to stably clamp the motor 3 to be tested, to ensure that motor 3 will not move or tilt during the test process. The steering shaft 41 of lifting mechanism 4 is inserted with the output shaft of motor 3, which is used to transmit the rotary power of motor 3. The other end of steering shaft 41 is connected with lead screw 42, and lead screw 42 is not in the same axis with the output shaft of motor 3, and the rotary power of the output shaft of motor 3 can be transmitted to lead screw 42 not in the same axis through steering shaft 41, and the steering shaft 41 can be universal shaft or universal coupling. Moving block 43 is connected on lead screw 42, and moving block 43 moves up and down along the axial direction of lead screw 42 with the rotation of lead screw 42, to realize the lifting function. The top end of moving block 43 is fixed with placement base 44, and placement base 44 is used to place counterweight block. When motor 3 starts, the output shaft will drive steering shaft 41 to rotate, and then drive lead screw 42 to rotate, so that moving block 43 moves up and down. The lifting of moving block 43 changes the height of placement base 44, thereby changing the weight force exerted by counterweight block on the output shaft of motor 3. By changing the weight of counterweight block, the performance of motor 3 under different weight conditions can be tested.

[0026] Referring to Figure 6As shown: the bottom of the left clamping block 21 is provided with a first rack 211, the bottom of the right clamping block 22 is provided with a second rack 221, the first rack 211 and the second rack 221 are meshed with a gear 23, the center of the gear 23 is provided with a rotating shaft 24, the rotating shaft 24 penetrates out of the clamping mechanism 2 and is fixedly connected with a rotating block 25 for the operator to hold.

[0027] The first rack 211 and the second rack 221 are provided with the gear 23, the gear 23 is meshed with the first rack 211 and the second rack 221, when the rotating block 25 is held and rotated by the operator, the gear 23 will drive the first rack 211 and the second rack 221 to move synchronously, so as to realize the relative movement of the left clamping block 21 and the right clamping block 22 to clamp or release the motor 3 to be tested. The center of the gear 23 is provided with the rotating shaft 24, the rotating shaft 24 penetrates out of the clamping mechanism 2, and is fixedly connected with the rotating block 25 for the operator to hold, the operator can control the opening and closing of the left clamping block 21 and the right clamping block 22 by rotating the rotating block 25, so as to conveniently install or remove the motor 3 to be tested, which simplifies the installation or setting of the motor 3, and also maintains the stability and operation accuracy of the clamping mechanism 2.

[0028] Referring to Figure 5 As shown: a plurality of limiting grooves 31 are formed on the output shaft of the motor 3, a plug groove 411 is formed on the steering shaft 41 for the limiting grooves 31 to be inserted, and a plurality of limiting blocks 412 are arranged in the plug groove 411.

[0029] A plurality of limiting grooves 31 are formed on the output shaft of the motor 3, the limiting grooves 31 are used to ensure that the steering shaft 41 is correctly connected with the output shaft of the motor 3 and keeps aligned. The plug groove 411 is formed on the steering shaft 41, and the limiting blocks 412 are arranged on the inner wall of the plug groove 411, the number of the limiting blocks 412 matches the number of the limiting grooves 31 on the output shaft of the motor 3. When the steering shaft 41 is inserted with the output shaft of the motor 3, the limiting blocks 412 will be inserted into the limiting grooves 31 of the output shaft of the motor 3, so as to ensure that the position of the steering shaft 41 on the output shaft of the motor 3 is fixed, and prevent the steering shaft 41 from being displaced or falling off due to the force generated by the operation of the motor 3.

[0030] Referring to Figures 1-6 As shown: the clamping mechanism 2 is provided with a reset mechanism 5; the reset mechanism 5 includes a guide groove 51 and a guide rod 52, the guide groove 51 is arranged on the side of the left clamping block 21 and the right clamping block 22 away from the semicircular groove, the guide rod 52 is arranged on the two side walls of the clamping mechanism 2, and the guide rod 52 is inserted into the guide groove 51; the guide groove 51 is provided with a reset spring 511.

[0031] The reset mechanism 5 can ensure that the left clamping block 21 and the right clamping block 22 can automatically return to the initial clamping position after the motor to be tested 3 is released. The guide groove 51 is arranged on the side of the left clamping block 21 and the right clamping block 22 away from the semicircular groove, the guide rod 52 is arranged on the two side walls in the clamping mechanism 2, the guide rod 52 is inserted into the guide groove 51, and the guide rod 52 can slide in the guide groove 51; the reset spring 511 is arranged in the guide groove 51, and when the left clamping block 21 and the right clamping block 22 release the motor 3, the elastic force of the reset spring 511 acts on the guide rod 52, so that the guide rod 52 slides along the guide groove 51, and then the left clamping block 21 and the right clamping block 22 are pushed to move towards the semicircular groove, and the reset action is completed.

[0032] Referring to Figures 1-4 As shown in the figure: the placement base 44 is provided with a limiting mechanism 6; the limiting mechanism 6 comprises a limiting hole 61 and a limiting rod 62, the limiting hole 61 is arranged on the placement base 44, and the limiting rod 62 is arranged above the test bench and penetrates the limiting hole 61.

[0033] The limiting hole 61 is arranged on the placement base 44, and the limiting rod 62 penetrates the placement base 44 through the limiting hole 61, so that the direction of movement of the placement base 44 is limited during the jacking process, and the placement base 44 can only move in the axial direction of the limiting rod 62.

[0034] Referring to Figure 2 As shown in the figure: the limiting rod 62 is provided with a height limiting block 621.

[0035] The height limiting block 621 can prevent the placement base 44 from moving excessively on the limiting rod 62, so that the placement base 44 exceeds the highest point of the limiting rod 62.

[0036] A plurality of mounting holes are arranged on the mounting base 1 at the bottom of the test bench, and a plurality of clamping mechanisms 2 are mounted on the mounting base 1 through the mounting holes, so as to adapt to different models of motors 3. Each clamping mechanism 2 comprises a left clamping block 21 and a right clamping block 22, which can move towards or away from each other along the bottom edge, and semicircular grooves are arranged on the two opposite sides to stably clamp the motor to be tested 3, so as to ensure that the motor 3 does not move or tilt during the test. The lifting mechanism 4 comprises a steering shaft 41 connected with the output shaft of the motor 3, which can be a universal shaft or a universal coupling to adapt to different connection requirements, one end of the steering shaft 41 is connected with a lead screw 42, the lead screw 42 is connected with a moving block 43, the moving block 43 moves up and down with the rotation of the lead screw 42 to realize the lifting function, and the top end of the moving block 43 is fixed with a placement base 44 for placing a counterweight, so as to change the height of the placement base 44 and the weight force exerted by the counterweight on the output shaft of the motor 3, and test the performance of the motor 3 under different weight conditions.

[0037] The bottom of the left clamping block 21 is provided with a first rack 211, the bottom of the right clamping block 22 is provided with a second rack 221, and the two are connected through a gear 23, the center of the gear 23 is provided with a rotating shaft 24, the rotating shaft 24 penetrates out of the clamping mechanism 2 and is fixedly connected with a rotating block 25 for an operator to hold, the operator can control the opening and closing of the left clamping block 21 and the right clamping block 22 by rotating the rotating block 25, the loading and unloading process of the motor 3 is simplified, and the stability of the clamping mechanism 2 and the accuracy of operation are maintained.

[0038] A plurality of limiting grooves 31 are formed on the output shaft of the motor 3, and a plug groove 411 is formed on the steering shaft 41, and a limiting block 412 is arranged on the inner wall of the plug groove 411, when the steering shaft 41 is inserted with the output shaft of the motor 3, the limiting block 412 is inserted into the limiting groove 31 of the output shaft of the motor 3, so that the position of the steering shaft 41 on the output shaft of the motor 3 is fixed, and the displacement or falling of the steering shaft 41 caused by the force generated by the motor 3 is prevented.

[0039] The clamping mechanism 2 is further provided with a reset mechanism 5, which comprises a guide groove 51 and a guide rod 52, the guide groove 51 is arranged on the side of the left clamping block 21 and the right clamping block 22 away from the semicircular groove, the guide rod 52 is arranged on the two side walls in the clamping mechanism 2 and is inserted into the guide groove 51, and a reset spring 511 is arranged in the guide groove 51, when the left clamping block 21 and the right clamping block 22 are loosened from the motor 3, the elastic force of the reset spring 511 acts on the guide rod 52, and the left clamping block 21 and the right clamping block 22 are pushed to move towards the semicircular groove, so that the reset action is completed.

[0040] The placing base 44 is provided with a limiting mechanism 6, which comprises a limiting hole 61 and a limiting rod 62, the limiting hole 61 is formed on the placing base 44, the limiting rod 62 is arranged above the test bench and penetrates through the limiting hole 61, so that the placing base 44 moves along the axial direction of the limiting rod 62 during the lifting process, and a limiting block 621 is arranged on the limiting rod 62, so that the placing base 44 is prevented from moving excessively on the limiting rod 62, the placing base 44 is prevented from exceeding the highest point of the limiting rod 62, and the safety and stability of the test are ensured.

[0041] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A small motor load testing bench, comprising a mounting base (1), a clamping mechanism (2), a lifting mechanism (4), and a motor to be tested (3), characterized in that: The mounting base (1) is located at the bottom of the test bench, and mounting holes are provided on the mounting base (1). The clamping mechanism (2) is mounted on the mounting base (1) through the mounting holes. The clamping mechanism (2) includes a left clamping block (21) and a right clamping block (22). Both the left clamping block (21) and the right clamping block (22) have semi-circular grooves on their opposite sides to stably clamp the motor to be tested (3). The lifting mechanism (4) includes a steering shaft (41) that is plugged into the output shaft of the motor (3). A lead screw (42) is connected to one end of the steering shaft (41) away from the motor (3). A moving block (43) is connected to the lead screw (42). The top of the movable block (43) is fixedly connected to a placement base (44).

2. The small motor load testing bench according to claim 1, characterized in that, The left clamping block (21) has a first rack (211) at its bottom and the right clamping block (22) has a second rack (221) at its bottom. A gear (23) meshes between the first rack (211) and the second rack (221). A rotating shaft (24) is located at the center of the gear (23). The rotating shaft (24) passes through the clamping mechanism (2) and is fixedly connected to a rotating block (25) for the operator to hold.

3. The small motor load testing bench according to claim 1, characterized in that, The output shaft of the motor (3) is provided with several limiting grooves (31), and the steering shaft (41) is provided with slots (411) for the limiting grooves (31) to be inserted. The slots (411) are provided with limiting blocks (412) matching the number of limiting grooves (31).

4. The small motor load testing bench according to claim 1, characterized in that, The clamping mechanism (2) is equipped with a reset mechanism (5); The reset mechanism (5) includes a guide groove (51) and a guide rod (52). The guide groove (51) is located on the side of the left clamping block (21) and the right clamping block (22) away from the semicircular groove. The guide rod (52) is located on the inner two side walls of the clamping mechanism (2) and corresponds to the position of the guide groove (51). The guide rod (52) is inserted into the guide groove (51); A return spring (511) is provided in the guide groove (51).

5. A small motor load testing bench according to claim 1, characterized in that, A limiting mechanism (6) is provided on the base (44); The limiting mechanism (6) includes limiting holes (61) and limiting rods (62). The limiting holes (61) are opened on the placement base (44) and there are multiple holes. The limiting rods (62) are located above the test bench and are the same number as the limiting holes (61) and pass through the limiting holes (61).

6. A small motor load testing bench according to claim 5, characterized in that, The limiting rod (62) is provided with a height limiting block (621).

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