Motor stalling test fixture

Abstract

The utility model discloses a motor locked-rotor test fixture comprising a bottom plate provided with a placing area used for placing a motor; the top plate is connected with the bottom plate, and the top plate and the bottom plate are arranged at intervals in the first direction; one end of the connecting part is used for being connected with a rotating gear of the motor, and the connecting part can rotate along with the motor in the circumferential direction; the top plate is provided with a rotating area, the rotating part is located in the rotating area, the rotating part is connected with the other end of the connecting part, and the rotating part can rotate in the rotating area in the circumferential direction along with the connecting part; the rotation stopping part can be switched between a first position and a second position; at the first position, the first part of the rotation stopping part is located in the rotation area; in the second position, the rotation stopping part is located outside the rotation area. According to the utility model, the safety of testers can be ensured during testing, and the accuracy of testing results can be ensured at the same time.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor stall test fixture. Background Art

[0002] At present, there are four main methods for motor stall testing:

[0003] 1) In a single motor test scenario, while the motor is running, employees manually place the blocking object at the blocking point and manually remove the blocking object after a collision occurs.

[0004] 2) On actual motorized mechanisms such as windows, sunroofs, and tailgates: Method 1: Use the mechanical stall point of the mechanism to cause a collision; Method 2: During the movement, the tester manually places the stall object at the stall point and removes the stall object after the collision.

[0005] 3) The SMS (Smart Motor Sensor) solution is used to simulate the stroke position and stall triggering method through software, thereby realizing a simple stall test. It is a test bench that can display the stroke and position, and can trigger the stall and stroke adjustment by pressing buttons.

[0006] 4) Using the Simulink (simulation) model simulation solution, according to the principle of the stall and anti-pinch algorithm, use Simulink software to build a functional model simulation, collect the I / O (Input / Output) information of the controller, simulate the U / I (Voltage / Current Intensity) change curve when stall and anti-pinch occur, and the controller collects the U / I information in real time and makes judgments.

[0007] The above four methods all have certain problems:

[0008] Method 1):

[0009] 1. Manually operating a motor to stall poses a serious safety hazard. The impulse at the moment of stalling may cause the stalling rod to fly out, causing injury to employees.

[0010] 2. The motor cannot be effectively fixed, causing it to move and rotate due to impact, affecting the accuracy of the test results.

[0011] 3. Precise angle adjustment cannot be achieved, resulting in the inability to accurately measure the required test data.

[0012] Method 2):

[0013] 1. The actual load with motor mechanism is expensive, and the number of samples is limited, which makes it difficult to meet the test requirements.

[0014] Method 3):

[0015] 1. The performance of the motor and mechanical structure cannot be fully verified. For example, the working conditions need to be predicted in advance, and the stall can only be set at a specific location; there is a lack of verification of the stall scenario under all working conditions, the stall force, and the current change.

[0016] Method 4):

[0017] 1. The solution is highly professional, costly and has low portability. Utility Model Content

[0018] The purpose of the utility model is to solve the problem of safety and accuracy of motor stall test. The utility model provides a motor stall test fixture, which can ensure the safety of testers during the test and ensure the accuracy of the test results.

[0019] In order to solve the above technical problems, the embodiment of the utility model discloses a motor stall test fixture, comprising:

[0020] A bottom plate, wherein the bottom plate is provided with a placement area, and the placement area is used to place the motor;

[0021] A top plate, the top plate is connected to the bottom plate and is spaced apart from the bottom plate along a first direction;

[0022] A connecting portion, one end of which is used to connect to the rotating gear of the motor, and the connecting portion can rotate along the circumferential direction with the motor;

[0023] A rotating part, wherein the top plate is provided with a rotating area, the rotating part is located in the rotating area, the rotating part is connected to the other end of the connecting part, and the rotating part can rotate along the circumferential direction within the rotating area with the connecting part;

[0024] a rotation stopper, the rotation stopper being switchable between a first position and a second position;

[0025] In the first position, the first portion of the anti-rotation portion is located in the rotation area;

[0026] In the second position, the rotation stop is located outside the rotation area.

[0027] By adopting the above technical scheme, the motor is placed on the bottom plate and a special placement area is set up to isolate it from other external devices, so as to prevent the motor from interfering with other external devices during the test and affecting the accuracy of the test results; the connecting part is connected to the rotating gear of the motor at one end and the rotating part at the other end, so that the rotation of the motor can be accurately transmitted to the rotating part, so that the rotating part can rotate synchronously with the motor, thereby realizing accurate transmission of motion characteristics and ensuring the accuracy of the test results; at the same time, a stopper is set, and the position conversion of the blocking object (i.e., the first part of the stopper) is realized by switching the stopper from the first position to the second position, thereby ensuring the normal progress of the test and reducing the difficulty of operation. The operator only needs to touch the stopper that is not located in the rotating area to switch the stopper from the first position to the second position. At this time, the force applied to the operator will be reduced, thereby avoiding the possible damage to the operator caused by the reverse torque of the motor and ensuring the safety of the operator.

[0028] Specifically, when conducting a motor stall test, the movement of the motor will be synchronously transmitted to the rotating part, that is, the rotating part will rotate circumferentially in the rotating area synchronously with the motor. Since the first part of the anti-rotation part is located in the rotating area, it will interfere with the rotating part. Therefore, when the rotating part rotates, it will touch the first part of the anti-rotation part. At this time, the motor will reverse. Then the operator will immediately turn the anti-rotation part from the first position to the second position. At this time, the anti-rotation part is completely outside the rotating area, that is, the first part of the anti-rotation part will also leave the rotating area. At this time, there is no interference from the stalling object in the rotating area, and the rotating part can rotate synchronously with the motor in the circumferential direction. According to the characteristics of the motor, after the motor has rotated a specific number of times, the anti-rotation part can be transferred from the second position to the first position.

[0029] If the motor does not reverse after touching the first part of the anti-rotation portion, it means that the anti-rotation function of the motor fails.

[0030] The above technical solution has at least the following advantages:

[0031] 1) The overall structure is simple, easy to make and low cost.

[0032] 2) The structure is stable, the motion transmission efficiency is high, and the test data reflects the actual situation more accurately.

[0033] 3) The difficulty of the stall test is reduced, making it easier for new operators to operate.

[0034] 4) Solved the safety hazard of employee blocking test.

[0035] 5) It can be applied to the stall and anti-pinch tests of all drive motor controllers.

[0036] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, which also includes a plurality of horizontal limit parts, and the plurality of horizontal limit parts together enclose the placement area, wherein:

[0037] The multiple horizontal limiting parts are all detachably connected to the bottom plate, and the multiple horizontal limiting parts are used together to limit the movement of the motor relative to the bottom plate along a second direction, and the second direction intersects with the first direction.

[0038] By adopting the above technical solution, a plurality of horizontal limit parts are set to limit the movement of the motor in the second direction, that is, to ensure that the motor will not move in the second direction relative to the base plate during the stall test, thereby ensuring the stability of the motor during the test and the accuracy of the test results. At the same time, since the horizontal limit part is detachably connected to the base plate, the motor can be quickly and effectively fixed.

[0039] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, the horizontal limit portion includes a connecting seat and a limit rod, the connecting seat is detachably connected to the base plate, the connecting seat extends along the first direction, the limit rod extends along the second direction and is detachably connected to the connecting seat, and the limit rod can move along the second direction to abut the motor.

[0040] By adopting the above technical scheme, the connecting seat and the base plate are detachably connected, which is convenient for fast and effective fixing of the motor. At the same time, the limit rod is detachably connected to the connecting seat, and the limit rod can move along the second direction. Therefore, the limit rod can be moved to change the distance between the limit rod and the motor, so that the limit rod can abut the motor to effectively fix the motor; at the same time, after the position of the connecting seat is set, if the size of the placement area is not compatible with the motor, there is no need to change the position of the connecting seat, only the distance between the limit rod and the motor needs to be changed, and the operation is simpler and faster; and the motor is fixed by abutting the limit rod against the motor. Compared with fixing the motor by abutting the connecting seat against the motor, the contact area between the limit rod and the motor is smaller than the contact area of ​​the connecting seat. When the surface shape of the motor is irregular, the fixing effect of the limit rod is better than that of the limit seat.

[0041] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, which also includes a vertical limit portion, which is detachably connected to the base plate, and the vertical limit portion and the base plate are used together to limit the movement of the motor relative to the base plate along the first direction.

[0042] By adopting the above technical solution, the movement of the motor in the first direction is limited by setting a vertical limit part and a base plate, that is, it is ensured that the motor will not move in the first direction relative to the base plate during the stall test, thereby ensuring the stability of the motor during the test and the accuracy of the test results. At the same time, the vertical limit part and the base plate are detachably connected, which is convenient for fast and effective fixation of the motor.

[0043] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, the vertical limiting portion includes a base and a toggle clamp mechanism, the base is detachably connected to the bottom plate, the base extends along the first direction, along the first direction, the toggle clamp mechanism is located on the base and connected to the base, part of the toggle clamp mechanism extends along the first direction and is spaced apart from the bottom plate along the first direction, and part of the toggle clamp mechanism can move along the first direction to abut the motor.

[0044] By adopting the above technical solution, the distance between the part of the toggle clamp mechanism that abuts against the motor and the motor can be adjusted. After the position of the base is set, if the part of the toggle clamp mechanism and the motor are not compatible, there is no need to change the position of the base. Only the distance between the part of the toggle clamp mechanism and the motor needs to be changed, which makes the operation simpler and faster.

[0045] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, wherein a plurality of mounting holes are opened on the base plate, and the plurality of mounting holes penetrate the base plate along the first direction, and the horizontal limiting portion can be connected to any two of the plurality of mounting holes, and the vertical limiting portion can be connected to any four of the plurality of mounting holes.

[0046] By adopting the above technical solution, mounting holes are set to realize the detachable connection between the horizontal limit part and the base plate, and the detachable connection between the vertical limit part and the base plate. At the same time, multiple mounting holes are set, so that the positions of the horizontal limit part and the vertical limit part can be changed in many directions, so as to adapt to motors of different models and sizes, thereby improving the versatility of the motor stall test fixture. The motor types can also be counted, and the mounting holes can be designed according to the motor appearance data to realize accurate adjustment and fixation.

[0047] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, wherein a first hexagonal connecting rod is provided at one end of the connecting part, the first hexagonal connecting rod extends along the first direction, one end of the first hexagonal connecting rod is used to connect the rotating gear of the motor, and a second hexagonal connecting rod is provided at the other end of the connecting part, the second hexagonal connecting rod extends along the first direction, and one end of the second hexagonal connecting rod is connected to the rotating part.

[0048] By adopting the above technical solution, by connecting the rotating gear of the motor with one end of the first hexagonal connecting rod and connecting the rotating part with one end of the second hexagonal connecting rod, the rotation of the motor can be accurately transmitted to the rotating part, so that the rotating part can rotate synchronously with the motor, thereby realizing accurate transmission of motion characteristics and ensuring the accuracy of the test results.

[0049] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, the connecting part also includes a universal joint, and the two ends of the universal joint are respectively connected to the other end of the first hexagonal connecting rod and the other end of the second hexagonal connecting rod.

[0050] By adopting the above technical solution, by setting a universal joint, the rotation of the motor can be accurately transmitted to the rotating part, so that the rotating part can rotate synchronously with the motor, thereby realizing accurate transmission of motion characteristics and ensuring the accuracy of the test results. At the same time, when the rotating gear of the motor is not located directly below the first hexagonal connecting rod and the second hexagonal connecting rod, the universal joint can adjust its angle so that the rotation of the motor can be accurately transmitted to the rotating part. In this way, the motor stall test fixture can adapt to motors of different models, thereby improving the versatility of the motor stall test fixture.

[0051] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, wherein a circular groove is opened on the side of the top plate facing away from the bottom plate to form the rotation area, and a placement groove is recessed along the groove wall of the circular groove, and in the first position, the second part of the stop portion is located in the placement groove.

[0052] By adopting the above technical solution, the circular groove is provided to provide sufficient rotation space for the rotating part, so that the rotating part can be completely synchronized with the rotation of the motor.

[0053] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, which also includes a stall operation disk. Along the first direction, the stall operation disk is arranged on the top plate, and the stall operation disk extends along the first direction and is provided with an annular groove extending along the first direction. The stop portion can move along the circumferential direction in the annular groove to switch between the first position and the second position.

[0054] By adopting the above technical solution and setting the annular groove, the anti-rotation part can be switched between the first position and the second position, thereby ensuring the smooth progress of the stall test and realizing precise angle adjustment, solving the problem of test data accuracy.

[0055] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, wherein the stall operation disk comprises an inner disk and an outer disk, wherein the outer disk is arranged around the inner disk to form the annular groove, wherein:

[0056] The inner plate comprises an upper limit portion and a lower limit portion, the upper limit portion and the lower limit portion are arranged at intervals along the first direction, and are both radially protruded from the inner plate, and along the circumferential direction, the lower limit portion is provided with a partition hole corresponding to the placement groove one by one, and in the first position, the first part of the anti-rotation portion is located in the rotation area and the partition hole at the same time, the second part of the anti-rotation portion is located in the placement groove and the partition hole at the same time, and the third part of the anti-rotation portion is located above the partition hole;

[0057] Along the circumferential direction, the outer disk is provided with a protrusion spaced apart from the upper limit portion in the radial direction, and in the first position and the second position, the protrusion and the upper limit portion jointly restrict the movement of the anti-rotation portion along the first direction.

[0058] By adopting the above technical solution, the movement of the anti-rotation part along the first direction is restricted by providing a protruding part and an upper limit part, thereby ensuring that the anti-rotation part will not leave the annular groove when the position changes subsequently, thereby ensuring stability.

[0059] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, the anti-rotation part includes an anti-rotation member, a lower limit member, an operating rod, an upper limit member and an elastic member, the operating rod extends along the first direction, the elastic member is sleeved on the operating rod, along the first direction, the two ends of the elastic member are respectively against the upper limit member and the lower limit member, the anti-rotation member is located below the lower limit member, wherein,

[0060] In the first position, a portion of the stopper is located in the rotation area and the partition hole, another portion of the stopper is located in the placement groove and the partition hole, the lower limiter is located above the partition hole, and the upper limiter is in contact with the protruding portion and the upper limiter at the same time;

[0061] In the second position, the rotation-stopping member is located on the lower limit portion, the upper limit portion is in contact with the protruding portion and the upper limit portion at the same time, and the lower limit portion is located in the annular groove.

[0062] By adopting the above technical scheme, due to the restriction of the upper limit member by the protrusion and the upper limit member, and the restriction of the lower limit member by the lower limit member, the stop member will not move in the first direction when it is in the first position, that is, it will not leave the annular groove. At the same time, since the other part of the stop member is located in the placement groove, the stop member will not move circumferentially, that is, it is guaranteed that the stop member can be stably in the first position. At the same time, a part of the stop member is located in the rotation area. At this time, when the rotating part touches a part of the stop member, the rotation of the rotating part is hindered and a reversal will occur. When the rotating part reverses, the operator can lift the operating rod. At this time, the elastic member will be compressed by the force of the upper limit member and the lower limit member, and the stop member will be lifted to leave the rotation area, the placement groove and the partition hole. At this time, the operating rod is moved along the annular groove to the second position. Under the action of the elastic member, the stop member will fall on the lower limit member, that is, it will leave the rotation area. At this time, the rotation of the rotating part is no longer restricted.

[0063] The design of the anti-rotation part fully considers the matching with the placement groove, and the material selection takes into account lightweight and material hardness and rigidity; the elastic part can be replaced with different pounds according to the employee's usage experience. At the same time, the operator's anti-rotation operation is simplified to two steps of lifting and releasing, which reduces the difficulty of operation. At the same time, it avoids the risk of wrist impact and injury caused by the reverse torque of the motor, ensuring the safety of the operator.

[0064] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses a motor stall test fixture, wherein the upper limit member is fan-shaped, and the lower limit member is fan-shaped.

[0065] By adopting the above technical solution, the upper limit member and the lower limit member are set to be fan-shaped, so that the contact area between the upper limit member and the lower limit member and the inner disk and the outer disk is increased, ensuring that after the anti-rotation part is fixed, it will no longer move along the annular groove, thereby ensuring the stability of the anti-rotation part.

[0066] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, which also includes a protective cover, which is connected to the outer periphery of the top plate and the bottom plate, and the protective cover is provided with through holes arranged at intervals along a third direction, and the through holes are used for the motor and the vertical limit portion to pass through, and the third direction intersects with the first direction.

[0067] By adopting the above technical solution and setting a protective cover, it is possible to prevent parts from flying out when the fixation between the first hexagonal connecting rod and the motor fails during the stall test, thereby preventing the operator from being injured, thereby solving the safety hazard problem of the operator during the stall test.

[0068] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a motor stall test fixture, which also includes a base foot, which is detachably connected to the base plate through a mounting hole, and the base foot can move along the first direction to change the distance between the base foot and the base plate.

[0069] By adopting the above technical solution, by setting the base foot, the motor stall test fixture can be placed flatly and stably on the test bench, ensuring the stability of the test process and thus the accuracy of the test results. At the same time, the base foot is detachably connected to the mounting hole, and the base foot can move along the first direction, that is, the height of the base foot can be adjusted by changing the depth of the base foot inserted into the mounting hole, thereby changing the distance between the base foot and the base plate.

[0070] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses a motor stall test fixture, wherein the placement area is provided with a placement hole penetrating the bottom plate along the first direction, and the placement hole is used to ensure the stability of the motor.

[0071] By adopting the above technical solution, since the bottom of the motor is uneven, the stability of the motor can be ensured by providing the placement hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 The three-dimensional view of the motor stall test fixture provided by the embodiment of the utility model under the front view angle is shown. Figure 1 , wherein the protective cover is not shown, the motor is assembled, and the anti-rotation part is in the first position;

[0073] Figure 2 The three-dimensional side view of the motor stall test fixture provided by the embodiment of the utility model is shown. Figure 2 , wherein the protective cover is not shown, the motor is assembled, and the anti-rotation part is in the first position;

[0074] Figure 3 A three-dimensional diagram showing a motor stall test fixture provided by an embodiment of the utility model Figure 3 , wherein the protective cover is not shown, the motor is not mounted, and the anti-rotation part is in the first position;

[0075] Figure 4 A schematic diagram showing a placement area;

[0076] Figure 5 The cross section of the motor stall test fixture provided by the embodiment of the utility model is shown Figure 1 , wherein the protective cover is not shown, the motor is assembled, and the anti-rotation part is in the first position;

[0077] Figure 6 The front view of the rotating part and the anti-rotation part provided by the embodiment of the utility model is shown. Figure 1, wherein one anti-rotation portion is provided and is located at a first position;

[0078] Figure 7 The front view of the inner plate and the anti-rotation part provided by the embodiment of the utility model is shown. Figure 1 , wherein two anti-rotation parts are provided and are located at a first position;

[0079] Figure 8 A side view of an inner disk and a rotation stopper provided by an embodiment of the utility model is shown, wherein two rotation stoppers are provided and are located at a first position;

[0080] Fig. 9 The front view of the rotating part and the anti-rotation part provided by the embodiment of the utility model is shown. Figure 2 , wherein two anti-rotation parts are provided and are located at a first position;

[0081] Fig.10 A three-dimensional diagram showing a motor stall test fixture provided by an embodiment of the utility model Figure 4 , wherein the protective cover is shown, the motor is assembled;

[0082] Fig.11 The cross section of the motor stall test fixture provided by the embodiment of the utility model is shown Figure 2 , wherein the protective cover and the connecting portion are not shown, the motor is assembled, and the anti-rotation portion is in the second position;

[0083] Fig.12 The front view of the inner plate and the anti-rotation part provided by the embodiment of the utility model is shown. Figure 2 , wherein two anti-rotation parts are provided and are located at the second position. DETAILED DESCRIPTION

[0084] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0085] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0086] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0087] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0088] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0089] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0090] refer to Figures 1 to 6 The present application provides a motor stall test fixture, comprising: a bottom plate 1, a top plate 2, a connecting portion 3, a rotating portion 4 and a stop portion 5, the bottom plate 1 is provided with a placement area B (reference Figure 4 The dotted line area), the placement area B is used to place the motor 6; the top plate 2 is connected to the bottom plate 1, and is connected to the bottom plate 1 along the first direction (i.e. Figure 1 One end of the connecting portion 3 is used to connect the rotating gear of the motor 6, and the connecting portion 3 can move along the circumferential direction (ie, Figure 1 The top plate 2 is provided with a rotating area C (reference Figure 6 ), the rotating portion 4 is located in the rotating area C, the rotating portion 4 is connected to the other end of the connecting portion 3, and the rotating portion 4 can rotate along the circumferential direction in the rotating area C with the connecting portion 3; the anti-rotation portion 5 can be in the first position (reference Figure 5 ) and the second position (reference Fig.11) in the first position; in the first position, the first part of the stopper 5 (i.e., a part of the stopper 50 described later) is located in the rotation area C; in the second position, the stopper 5 is located outside the rotation area C.

[0091] Exemplarily, the motor 6 is placed on the base plate 1 and a special placement area B is provided to isolate it from other external devices to prevent the motor 6 from interfering with other external devices during the test and affecting the accuracy of the test results; the connecting part 3 is connected to the rotating gear of the motor 6 at one end and the rotating part 4 at the other end, so that the rotation of the motor 6 can be accurately transmitted to the rotating part 4, so that the rotating part 4 can rotate synchronously with the motor 6, thereby realizing the accurate transmission of the motion characteristics and ensuring the accuracy of the test results; at the same time, a stopper 5 is provided, and the position conversion of the blocking object (i.e., the first part of the stopper 5) is realized by switching the stopper 5 from the first position to the second position, thereby ensuring the normal progress of the test and reducing the difficulty of operation. The operator only needs to touch the stopper 5 (i.e., the operating lever 54 described later) that is not located in the rotating area to switch the stopper 5 from the first position to the second position. At this time, the force applied to the operator will be reduced, thereby avoiding the possible damage to the operator caused by the reverse torque of the motor 6 and ensuring the safety of the operator.

[0092] Specifically, when conducting a stall test on motor 6, the movement of motor 6 will be synchronously and accurately transmitted to the rotating part 4, that is, the rotating part 4 will rotate circumferentially in the rotating area C synchronously with the motor 6. Since the first part of the anti-rotation part 5 is located in the rotating area C, it will interfere with the rotating part 4. Therefore, when the rotating part 4 rotates, it will touch the first part of the anti-rotation part 5. At this time, the motor 6 will reverse, and then the operator will immediately turn the anti-rotation part 5 from the first position to the second position. At this time, the anti-rotation part 5 is completely outside the rotating area C, that is, the first part of the anti-rotation part 5 will also leave the rotating area C. At this time, there is no interference from the stalling object (that is, the first part of the anti-rotation part 5) in the rotating area C, and the rotating part 4 can rotate synchronously with the motor 6 in the circumferential direction. According to the characteristics of the motor 6, after the motor 6 rotates a specific number of times, the anti-rotation part 5 can be transferred from the second position to the first position.

[0093] If the motor 6 does not reverse after touching the first part of the anti-rotation portion 5 , it means that the anti-rotation function of the motor 6 fails.

[0094] For example, reference Figures 1 to 3 The bottom plate 1 and the top plate 2 are connected by four Figure 1 The bottom plate 1 is provided with a plurality of mounting holes 12, and the plurality of mounting holes 12 are connected along the first direction (ie, the X direction shown in FIG. 1 ). Figure 1The placement area B is provided with placement holes 13 that penetrate the bottom plate 1 along the first direction, and the placement holes 13 are used to ensure the stability of the motor 6.

[0095] Since the bottom of the motor 6 is uneven, the stability of the motor 6 can be ensured by setting a placement hole 13. It should be noted that the embodiment of the present application does not limit the shape of the placement hole 13. It can be a square as shown in the embodiment of the present application, or it can be a circle or other shapes. In actual work, you can make a choice based on the specific structure of the motor 6.

[0096] For example, reference Figure 1 and Figure 6 A circular groove 20 is provided on the side of the top plate 2 facing away from the bottom plate 1 to form a rotation area C. Three placement grooves 21 are provided along the groove wall of the circular groove 20. Figure 8 In the first position, the first part of the stopper 5 (i.e., a part 500 of the stopper 50 described later) is located in the rotation area C, and the second part of the stopper 5 (i.e., another part 501 of the stopper 50 described later) is located in the placement groove 21. The part located in the placement groove 21 is used to limit the rotation of the stopper 5 along the circumferential direction (i.e., Figure 8 The movement of the rotating part 4 in the A direction as shown in the figure is prevented, and a part located in the rotating area C is used to block the movement of the rotating part 4 in the circumferential direction.

[0097] It should be noted that the reference Figures 1 to 6 The embodiment of the present application does not limit the shapes of the bottom plate 1 and the top plate 2. The shapes of the bottom plate 1 and the top plate 2 can be the quadrilateral shown in the embodiment of the present application, or can be circular or other shapes. At the same time, the present application does not limit the connection method between the support column 14 and the bottom plate 1 and the top plate 2. One end of the support column 14 can be welded or threaded to the bottom plate 1, or can be clamped through any four of the multiple mounting holes 12. The other end of the support column 14 can be welded or threaded to the top plate 2, or four through holes can be opened on the top plate 2 to clamp with four support columns 14 respectively.

[0098] Similarly, the embodiment of the present application does not impose any restrictions on the number and location of the support columns 14. The number of the support columns 14 can be four as shown in the embodiment of the present application, or it can be six or other numbers. The four support columns 14 can be set on the outer periphery of the bottom plate 1 and the top plate 2, or they can be set at any position of the bottom plate 1 and the top plate 2, as long as the bottom plate 1 and the top plate 2 can be stably connected.

[0099] The embodiment of the present application does not limit the number of mounting holes 12, which can be 72 mounting holes 12 as shown in the embodiment of the present application, or 70 or other numbers. The embodiment of the present application does not limit the number of anti-rotation parts 5, which can be as follows: Figure 7The two shown can also be Figure 6 As shown, there are one, or three anti-rotation parts 5, etc. Similarly, the embodiment of the present application does not limit the number of placement grooves 21, and it can be three as shown in the embodiment of the present application, or it can be two placement grooves 21 or one placement groove 21, etc.

[0100] By setting 72 mounting holes 12, the detachable connection between the horizontal limit part 7 and the base plate 1 and the detachable connection between the vertical limit part 8 and the base plate 1 are realized, and at the same time, the positions of the horizontal limit part 7 and the vertical limit part 8 can be changed in many directions to adapt to motors 6 of different models and sizes, thereby improving the versatility of the motor stall test fixture.

[0101] For example, reference Figures 2 to 4 The motor stall test fixture further includes four horizontal limit portions 7, which together form a placement area B. It should be noted that the embodiment of the present application does not limit the shape and size of the placement area B. The shape and size of the placement area B are determined by the positions of the four horizontal limit portions 7. Figure 4 Shapes and sizes shown; other shapes and sizes are possible.

[0102] The four horizontal limiting parts 7 have the same structure, and all include a connecting seat 70 and a limiting rod 71. The connecting seat 70 is arranged along the first direction (i.e. Figure 3 The four horizontal limit portions 7 are used to limit the motor 6 from moving in the second direction (i.e., the X direction) and are detachably connected to the base plate 1 through any two of the 72 mounting holes 12, such as threaded connection or clamping. Figure 3 The Y direction shown) moves relative to the base plate 1.

[0103] For example, continue to refer to Figures 2 to 4 The limiting rod 71 moves along the second direction (i.e. Figure 2 The limiting rod 71 includes a double-headed screw 710 and an abutment block 711. The double-headed screw 710 is detachably connected to the connecting seat 70, and the abutment block 711 is used to extend in the second direction (i.e. Figure 3 The double-headed screw 710 can be rotated to make the double-headed screw 710 move left and right along the second direction to change the distance between the abutment block 711 and the motor 6, so as to adapt to motors 6 of different models and sizes, thereby improving the versatility of the motor stall test fixture and achieving fast and effective fixation of the motor 6.

[0104] Exemplarily, the abutment block 711 may be made of nylon plastic or rubber to prevent damage to the housing of the motor 6 when the motor 6 is fixed.

[0105] For example, reference Figure 1 and Figure 2 The motor stall test fixture also includes a vertical limiter 8, which is detachably connected to the bottom plate 1. The vertical limiter 8 and the bottom plate 1 are used together to limit the motor 6 from moving in the first direction (i.e. Figure 2 The vertical limiting portion 8 moves relative to the base plate 1 in the X direction as shown, wherein the vertical limiting portion 8 includes a base 80 and a toggle clamp mechanism 81, and the base 80 is detachably connected to the base plate 1 through any four of the 72 mounting holes 12, such as threaded connection and clamping, but not limited to this, and the base 80 can also be connected to the base plate 1 through any eight or six of the 72 mounting holes 12.

[0106] For example, continue to refer to Figure 1 and Figure 2 , the base 80 is along the first direction (ie Figure 2 The toggle clamp mechanism 81 extends along the first direction, and is located on the base 80 and connected to the base 80. The toggle clamp mechanism 81 includes an operating end 810 and a limiting end 811. By operating the operating end 810, the limiting end 811 can be moved up and down along the first direction to change the distance between the limiting end 811 and the motor 6, so as to adapt to motors 6 of different models and sizes.

[0107] For example, continue to refer to Figure 1 and Figure 2 , the limiting end 811 is along the first direction (ie Figure 2 The limiting end 811 extends in the X direction as shown in the figure, and is spaced apart from the base plate 1 along the first direction. The limiting end 811 includes a sub-double-headed screw and a sub-abutment block, and the sub-abutment block is used to abut the motor 6 along the first direction.

[0108] Exemplarily, the sub-abutment block may be made of nylon plastic or rubber material to prevent damage to the housing of the motor 6 when the motor 6 is fixed.

[0109] For example, reference Figure 5 The connecting part 3 includes a first hexagonal connecting rod 30, a second hexagonal connecting rod 31 and a universal joint 32. The first hexagonal connecting rod 30 is arranged along a first direction (ie Figure 5 The second hexagonal connecting rod 31 extends along the first direction, the first hexagonal connecting rod 30, the universal joint 32 and the second hexagonal connecting rod 31 are connected in sequence, one end of the first hexagonal connecting rod 30 is used to connect the rotating gear of the motor 6, and one end of the second hexagonal connecting rod 31 is connected to the rotating part 4.

[0110] For example, reference Figure 5 and Figure 6 The rotating part 4 is threadedly connected to one end of the second hexagonal connecting rod 31, and the rotating part 4 is a connecting rod having a length equal to the inner diameter of the rotating area C.

[0111] By providing the universal joint 32, the rotation of the motor 6 can be accurately transmitted to the rotating part 4, so that the rotating part 4 can rotate synchronously with the motor 6, thereby realizing accurate transmission of motion characteristics and ensuring the accuracy of the test results. At the same time, when the rotating gear of the motor 6 is not located directly below the first hexagonal connecting rod 30 and the second hexagonal connecting rod 31, the universal joint 32 can adjust its angle so that the rotation of the motor 6 can be accurately transmitted to the rotating part 4. In this way, the motor stall test fixture can adapt to motors 6 of different models, thereby improving the versatility of the motor stall test fixture.

[0112] For example, reference Figure 5 Combined with Figure 1 The motor stall test fixture also includes a stall operation panel 9, along the first direction (i.e. Figure 5 The locking operation disk 9 is provided on the top plate 2 and extends along the first direction. The locking operation disk 9 includes an inner disk 90 and an outer disk 91. The outer disk 91 is provided around the inner disk 90 to form an annular groove 92.

[0113] For example, reference Figures 5 to 8 The inner plate 90 includes an upper limit portion 900 and a lower limit portion 901, and the upper limit portion 900 and the lower limit portion 901 are arranged along a first direction (ie Figure 5 The inner disk 90 is provided at intervals (in the X direction shown in the figure) and is radially protruded from the inner disk 90.

[0114] That is to say, reference Figure 7 The main disk 93 of the inner disk 90 is, for example, a cylindrical disk. Along the first direction, the upper limit portion 900 circumferentially surrounds the upper part of the main disk 93, and the lower limit portion 901 circumferentially surrounds the lower part of the main disk 93. The upper limit portion 900 extends radially by a distance R1, that is, the distance from the dotted line to the edge of the upper limit portion 900 is R1, and the lower limit portion 901 extends radially by a distance R2, that is, the distance from the dotted line to the edge of the lower limit portion 901 is R2. The extension distance R1 of the upper limit portion 900 is smaller than the extension distance R2 of the lower limit portion 901.

[0115] refer to Figure 7 Combined with Figure 8 and Fig. 9 , along the circumferential direction (i.e. Figure 8In the direction A shown in the figure, the lower limit portion 901 is provided with a partition hole 9010 which corresponds one to one with the placement slot 21. In the first position, the first part of the stop portion 5 is located at both the rotation area C and the partition hole 9010 (i.e. a part 500 of the stop member 50 described later), the second part of the stop portion 5 is located at both the placement slot 21 and the partition hole 9010 (i.e. another part 501 of the stop member 50 described later), the third part of the stop portion 5 (i.e. the lower limit member 51, the elastic member 52, the upper limit member 53 and the operating rod 54 described later) is located above the partition hole 9010, and one end of the upper limit member 53 abuts against the upper limit portion 900.

[0116] For example, reference Figures 5 to 7 , along the circumferential direction (i.e. Figure 7 The outer disk 91 is provided with a protrusion 910 which is radially spaced from the upper limit portion 900. In the first position and the second position, the protrusion 910 and the upper limit portion 900 jointly restrict the rotation stop portion 5 from rotating in the first direction (i.e. Figure 7 Movement in the X direction (as shown).

[0117] refer to Figures 1 to 3 By providing the annular groove 92, the anti-rotation portion can be arranged in the annular groove 92 along the circumferential direction (i.e. Figure 3 The movement of the anti-rotation part in the direction A shown in the figure enables the anti-rotation part to switch between the first position and the second position, thereby ensuring the smooth progress of the stall test.

[0118] For example, reference Figures 7 to 9 The anti-rotation part 5 includes an anti-rotation member 50, a lower limit member 51, an elastic member 52, an upper limit member 53 and an operating rod 54. The operating rod 54 is arranged along a first direction (ie Figure 7 The elastic member 52 is sleeved on the operating rod 54. Along the first direction, the two ends of the elastic member 52 respectively abut against the upper limit member 53 and the lower limit member 51. The anti-rotation member 50 is located below the lower limit member 51.

[0119] Among them, reference Figures 5 to 8 In the first position, a part 500 of the stop member 50 is located in the rotation area C and the partition hole 9010, another part 501 of the stop member 50 is located in the placement groove 21 and the partition hole 9010, the lower limit member 51 is located above the partition hole 9010, and the upper limit member 53 is simultaneously in contact with the protrusion 910 and the upper limit portion 900, that is, the third part of the stop portion 5 is located above the partition hole 9010.

[0120] refer to Fig.11 and Fig.12 Combined with Figure 1 In the second position, the stop member 50 is located on the lower limit portion 901 , the upper limit member 53 abuts against the protrusion 910 and the upper limit portion 900 at the same time, and the lower limit member 51 is located in the annular groove 92 .

[0121] refer to Figures 5 to 8 Combined with Figure 1 Due to the restriction of the upper limit member 53 by the protruding portion 910 and the upper limit member 900, and the restriction of the lower limit member 51 by the lower limit member 901, the stop member 5 will not move in the first direction when it is in the first position, that is, the stop member 5 will not leave the annular groove 92. At the same time, since the other part 501 of the stop member 50 is located in the placement groove 21, the stop member 5 will not move in the circumferential direction, that is, it is ensured that the stop member 5 can be stably in the first position. At the same time, a part 500 of the stop member 50 is located in the rotation area C. At this time, when the rotating part 4 touches a part 500 of the stop member 50, the rotation of the rotating part 4 is hindered and reverses. When the rotating part 4 reverses, the operator can lift the operating rod 54. The elastic member 52 will be compressed by the force of the upper limit member 53 and the lower limit member 51 at this time, and the stop member 50 will be lifted to leave the rotation area C, the placement groove 21 and the partition hole 9010. At this time, the operating rod 54 is moved along the annular groove 92 to the second position (reference Fig.12 ), under the action of the elastic member 52, the anti-rotation member 50 will fall on the lower limit portion 901, that is, leave the rotation area C, and the rotation of the rotating part 4 is no longer restricted.

[0122] The operator's stall operation is simplified to two steps of lifting and releasing, which reduces the difficulty of operation and avoids the risk of wrist being hit or injured due to the reverse torque of motor 6, thereby ensuring the safety of the operator.

[0123] Exemplarily, the upper limit member 53 is fan-shaped, and the lower limit member 51 is fan-shaped. By setting the upper limit member 53 and the lower limit member 51 to be fan-shaped, the contact area between the upper limit member 53 and the lower limit member 51 and the inner disk 90 and the outer disk 91 is increased, ensuring that the anti-rotation part 5 will not move along the annular groove 92 after being fixed, and ensuring the stability of the anti-rotation part 5. It should be noted that the upper limit member 53 and the lower limit member 51 can also be circular.

[0124] For example, reference Fig.10 and Fig.11 Combined with Figure 1 The motor stall test fixture also includes a protective cover 10 and four bases 11. The protective cover 10 is connected to the outer periphery of the top plate 2 and the bottom plate 1. The protective cover 10 has a plurality of holes along the third direction (i.e. Fig.10 The motor 6 and the operating end 810 of the vertical limit portion can pass through the through hole 100, and the four base feet 11 can be detachably connected to the base plate 1 through any four of the 72 mounting holes 12, such as threaded connection and clamping, and each base foot 11 can be moved in the first direction (i.e., Fig.11The height of the base 11 can be adjusted by changing the distance between each base 11 and the base plate 1 by changing the depth of each base 11 inserted into the mounting hole 12.

[0125] Exemplarily, the protective cover 10 can be made of a transparent material to facilitate the staff to observe the internal working status.

[0126] The first direction (i.e. Figure 1 The X direction shown), the second direction (i.e. Figure 1 The Y direction shown) and the third direction (i.e. Figure 1 In the embodiment of the present application, for the convenience of display, the first direction (i.e. Figure 1 The X direction shown), the second direction (i.e. Figure 1 The Y direction shown) and the third direction (i.e. Figure 1 The following explanation will be made by taking the Z direction shown in the figure as an example) which are perpendicular to each other.

[0127] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A motor stall test fixture, characterized in that: include: A bottom plate, wherein the bottom plate is provided with a placement area, and the placement area is used to place the motor; A top plate, the top plate is connected to the bottom plate and is spaced apart from the bottom plate along a first direction; A connecting portion, one end of which is used to connect to the rotating gear of the motor, and the connecting portion can rotate along the circumferential direction with the motor; A rotating part, wherein the top plate is provided with a rotating area, the rotating part is located in the rotating area, the rotating part is connected to the other end of the connecting part, and the rotating part can rotate along the circumferential direction within the rotating area with the connecting part; a rotation stopper, the rotation stopper being switchable between a first position and a second position; In the first position, the first portion of the anti-rotation portion is located in the rotation area; In the second position, the rotation stop is located outside the rotation area.

2. The motor stall test fixture as claimed in claim 1, characterized in that: It also includes a plurality of horizontal limiting parts, which together enclose the placement area, wherein: The multiple horizontal limiting parts are all detachably connected to the bottom plate, and the multiple horizontal limiting parts are used together to limit the movement of the motor relative to the bottom plate along a second direction, and the second direction intersects with the first direction.

3. The motor stall test fixture as claimed in claim 2, characterized in that: The horizontal limiting portion includes a connecting seat and a limiting rod, the connecting seat is detachably connected to the base plate, the connecting seat extends along the first direction, the limiting rod extends along the second direction and is detachably connected to the connecting seat, and the limiting rod can move along the second direction to abut against the motor.

4. The motor stall test fixture as claimed in claim 1, characterized in that: It also includes a vertical limiting portion, which is detachably connected to the bottom plate, and the vertical limiting portion and the bottom plate are used together to limit the movement of the motor relative to the bottom plate along the first direction.

5. The motor stall test fixture as claimed in claim 4, characterized in that: The vertical limiting portion includes a base and a toggle clamp mechanism, the base is detachably connected to the bottom plate, the base extends along the first direction, the toggle clamp mechanism is located on the base and connected to the base along the first direction, part of the toggle clamp mechanism extends along the first direction and is spaced apart from the bottom plate along the first direction, and part of the toggle clamp mechanism can move along the first direction to abut against the motor.

6. The motor stall test fixture according to any one of claims 1 to 5, characterized in that: The base plate is provided with a plurality of mounting holes, and the plurality of mounting holes penetrate the base plate along the first direction. The horizontal limiting portion can be connected to any two of the plurality of mounting holes, and the vertical limiting portion can be connected to any four of the plurality of mounting holes.

7. The motor stall test fixture as claimed in claim 1, characterized in that: A first hexagonal connecting rod is provided at one end of the connecting part, and the first hexagonal connecting rod extends along the first direction. One end of the first hexagonal connecting rod is used to connect the rotating gear of the motor. A second hexagonal connecting rod is provided at the other end of the connecting part, and the second hexagonal connecting rod extends along the first direction. One end of the second hexagonal connecting rod is connected to the rotating part.

8. The motor stall test fixture as claimed in claim 7, characterized in that: The connecting portion further includes a universal joint, and two ends of the universal joint are respectively connected to the other end of the first hexagonal connecting rod and the other end of the second hexagonal connecting rod.

9. The motor stall test fixture as claimed in claim 1, characterized in that: A circular groove is provided on one side of the top plate facing away from the bottom plate to form the rotation area, and a placement groove is recessed along the groove wall of the circular groove. In the first position, the second part of the anti-rotation part is located in the placement groove.

10. The motor stall test fixture as claimed in claim 9, characterized in that: It also includes a locking operation disk, which is arranged on the top plate along the first direction. The locking operation disk extends along the first direction and is provided with an annular groove extending along the first direction. The locking portion can move along the circumferential direction in the annular groove to switch between the first position and the second position.

11. The motor stall test fixture as claimed in claim 10, characterized in that: The locked rotor operation disk comprises an inner disk and an outer disk, wherein the outer disk is arranged around the inner disk to form the annular groove, wherein: The inner plate comprises an upper limit portion and a lower limit portion, the upper limit portion and the lower limit portion are arranged at intervals along the first direction, and are both radially protruded from the inner plate, and along the circumferential direction, the lower limit portion is provided with a partition hole corresponding to the placement groove one by one, and in the first position, the first part of the anti-rotation portion is located in the rotation area and the partition hole at the same time, the second part of the anti-rotation portion is located in the placement groove and the partition hole at the same time, and the third part of the anti-rotation portion is located above the partition hole; Along the circumferential direction, the outer disk is provided with a protrusion spaced apart from the upper limit portion in the radial direction, and in the first position and the second position, the protrusion and the upper limit portion jointly restrict the movement of the anti-rotation portion along the first direction.

12. The motor stall test fixture as claimed in claim 11, characterized in that: The anti-rotation part includes an anti-rotation member, a lower limit member, an operating rod, an upper limit member and an elastic member, wherein the operating rod extends along the first direction, the elastic member is sleeved on the operating rod, and along the first direction, the two ends of the elastic member are respectively against the upper limit member and the lower limit member, and the anti-rotation member is located below the lower limit member, wherein, In the first position, a portion of the stopper is located in the rotation area and the partition hole, another portion of the stopper is located in the placement groove and the partition hole, the lower limiter is located above the partition hole, and the upper limiter is in contact with the protruding portion and the upper limiter at the same time; In the second position, the rotation-stopping member is located on the lower limit portion, the upper limit portion is in contact with the protruding portion and the upper limit portion at the same time, and the lower limit portion is located in the annular groove.

13. The motor stall test fixture as claimed in claim 12, characterized in that: The upper limit member is fan-shaped, and the lower limit member is fan-shaped.

14. The motor stall test fixture as claimed in claim 1, characterized in that: It also includes a protective cover, which is connected to the outer periphery of the top plate and the bottom plate. The protective cover is provided with through holes arranged at intervals along a third direction, and the through holes are used for the motor and the vertical limit part to pass through. The third direction intersects with the first direction.

15. The motor stall test fixture as claimed in claim 1, characterized in that: It also includes a foot, which is detachably connected to the base plate through a mounting hole, and the foot can move along the first direction to change the distance between the foot and the base plate.

16. The motor stall test fixture as claimed in claim 1, characterized in that: The placement area is provided with a placement hole penetrating the bottom plate along the first direction, and the placement hole is used to ensure the stability of the motor.

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