Frameless motor torque test bench

Abstract

The invention relates to the technical field of frameless motor testing, and discloses a frameless motor torque test bench which comprises a supporting platform, a rotating pipe is rotatably arranged on the supporting platform, a magnetic powder brake and a torque measuring instrument are arranged on the rotating pipe, one end of the rotating pipe is fixedly connected with a first electric push rod, and the other end of the rotating pipe is fixedly connected with a second electric push rod. The output end of the first electric push rod is fixedly connected with a flange; the first clamp mechanism is used for clamping and fixing the inner rotor frameless motor and can transmit torque generated when a rotor of the inner rotor frameless motor rotates to the rotating pipe. The adjusting mechanism is used for driving the first clamp mechanism to slide along the supporting platform; the second clamp mechanism is arranged on the supporting platform and located on the side, away from the rotating pipe, of the first clamp mechanism, and the second clamp mechanism is used for clamping and fixing the outer rotor frameless motor and can transmit torque generated when a rotor of the outer rotor frameless motor rotates to the rotating pipe. And the flexibility requirements of different scenes are met.

Description

Technical Field

[0001] The present invention relates to the technical field of frameless motor testing, and particularly to a torque test bench for a frameless motor. Background Art

[0002] As an innovative driving device, the frameless motor has received extensive attention in the fields of high-end automation and precision control in recent years. Its core design concept is to remove the housing, bearings, and support structures of traditional motors, and only retain the stator and rotor core components. This modular design enables it to be flexibly integrated into various mechanical systems. The advantages of the frameless motor are significant: it has a compact structure, high power density, can be directly embedded inside the load, reduces the mechanical transmission chain, improves the system response speed and control accuracy, and its lightweight feature is especially suitable for weight-sensitive application scenarios such as aerospace and robot joints. In addition, the frameless motor has a high degree of customization, and users can design mounting brackets according to load requirements to adapt to different sizes and shapes, maximizing space utilization.

[0003] The frameless motor is used for efficient and precise driving. When the frameless motor leaves the factory, it needs to be subjected to torque detection. The frameless motor is divided into an inner-rotor frameless motor and an outer-rotor frameless motor. The existing test benches can only adapt to a single inner-rotor frameless motor or outer-rotor frameless motor, and the adaptability is poor. Summary of the Invention

[0004] The purpose of the present invention is to provide a torque test bench for a frameless motor, aiming to solve or improve at least one of the above technical problems.

[0005] To achieve the above purpose, the present invention provides the following solution: The present invention provides a torque test bench for a frameless motor, including:

[0006] Support platform:

[0007] A rotating tube rotatably arranged on the support platform, a magnetic powder brake and a torque measuring instrument are arranged on the rotating tube, one end of the rotating tube is fixedly connected to a first electric push rod, and the output end of the first electric push rod is fixedly connected to a flange plate;

[0008] A first fixture mechanism slidably arranged on the support platform, the first fixture mechanism is used for clamping and fixing the inner-rotor frameless motor, and the first fixture mechanism is also used for detachably connecting to the flange plate and transferring the torque generated when the rotor of the inner-rotor frameless motor rotates to the rotating tube;

[0009] An adjusting mechanism arranged on the support platform, the adjusting mechanism is used for driving the first fixture mechanism to slide along the support platform;

[0010] The second fixture mechanism is arranged on the support platform and on the side of the first fixture mechanism away from the rotating tube. The second fixture mechanism is used for clamping and fixing the frameless outer rotor motor, and is also used for detachably connecting with the flange and transferring the torque generated when the rotor of the frameless outer rotor motor rotates to the rotating tube.

[0011] Optionally, the first fixture mechanism includes:

[0012] A first slider, slidably arranged on the support platform;

[0013] A first fixing plate, fixedly connected to the first slider, with a reinforcing shell detachably connected to the first fixing plate, and the frameless inner rotor motor is located inside the reinforcing shell;

[0014] A pair of side plates, fixedly connected to the first slider and located on both sides of the reinforcing shell respectively. Screws are in threaded cooperation with the side plates. One end of each screw extends into the reinforcing shell and is rotatably connected to a clamping plate, and the pair of clamping plates respectively abut against both sides of the stator of the frameless inner rotor motor;

[0015] A connecting rod, slidably cooperating with the reinforcing shell along the axial direction of the reinforcing shell;

[0016] A rubber plug, sleeved on the connecting rod, and the rubber plug is used for abutting against the rotor of the frameless inner rotor motor and clamping the frameless inner rotor motor inside the reinforcing shell;

[0017] A clamping plate, fixedly connected to one end of the connecting rod, and the clamping plate is used for abutting against the side of the rubber plug away from the frameless inner rotor motor, and is also used for detachably connecting with the flange.

[0018] Optionally, an arc-shaped first positioning plate is fixedly connected to the clamping plate. The first positioning plate is arranged on the side of the frameless inner rotor motor away from the rubber plug, and a first ball for abutting against the rotor of the frameless inner rotor motor is arranged on the first positioning plate.

[0019] Optionally, a lifting box is fixedly connected to the first slider. A second electric push rod is fixedly connected inside the lifting box. The output end of the second electric push rod is fixedly connected to a lifting block. The lifting block is provided with an inner arc surface, and a rubber pad is fixedly connected to the inner arc surface. The rubber pad is used for abutting against the stator of the frameless inner rotor motor, and an exhaust port is arranged on the side wall of the lifting box.

[0020] Optionally, the adjusting mechanism includes:

[0021] A sliding groove is opened on the support platform, and the first slider is slidably fitted in the sliding groove;

[0022] A lead screw, rotatably connected in the sliding groove, and the lead screw is in threaded cooperation with the first slider;

[0023] A pair of sliding rods, fixedly connected in the sliding groove, and the sliding rods are in sliding cooperation with the first slider;

[0024] A motor, arranged on the support platform, and the motor is used to drive the lead screw to rotate.

[0025] Optionally, a laser emitter is fixedly connected to the first slider, and a laser receiver is fixedly connected to the support platform. When the laser emitter corresponds to the laser receiver, the clamping plate corresponds to the flange.

[0026] Optionally, the second clamping mechanism includes:

[0027] A second fixed plate, fixedly connected to the support platform, and a groove is formed in the second fixed plate;

[0028] A pair of second sliders, slidably fitted in the groove, and an arc-shaped pressing plate is fixedly connected to the second slider, and the pressing plate is used to abut against the stator of the frameless outer rotor motor;

[0029] A forward and reverse screw, rotatably connected to the support platform, and the two sections of threads of the forward and reverse screw are respectively in threaded cooperation with a pair of the second sliders;

[0030] A pressing disc, used for detachably connecting with the flange, and the pressing disc is used to abut against the rotor of the frameless outer rotor motor.

[0031] Optionally, an arc-shaped second positioning plate is fixedly connected to the pressing plate, the second positioning plate is arranged on the side of the frameless outer rotor motor away from the pressing disc, and a second ball for abutting against the rotor of the frameless outer rotor motor is arranged on the second positioning plate.

[0032] Optionally, a reinforcing frame is arranged on the support platform, and the reinforcing frame is rotatably connected to the rotating pipe.

[0033] Optionally, a plurality of support feet are arranged on the bottom surface of the support platform.

[0034] The present invention discloses the following technical effects:

[0035] The inner rotor frameless motor and the outer rotor frameless motor are fixed by the first fixture mechanism and the second fixture mechanism respectively. By only adjusting the position of the first fixture mechanism through the adjusting mechanism, the first fixture mechanism is made to correspond or be misaligned with the flange so that the second fixture mechanism corresponds to the flange, so that the flange can be respectively applied to be connected with the first fixture mechanism or the second fixture mechanism. Furthermore, by driving the inner rotor frameless motor or the outer rotor frameless motor to rotate to drive the rotating tube to rotate, the magnetic powder brake and the torque measuring instrument connected to the rotating tube are used for test experiments, which can meet the test requirements for supporting two different types of frameless motors, without replacing the test platform, adapting to the flexibility requirements of different scenarios, with flexibility, economy and high precision, significantly improving the adaptability and comprehensive efficiency of the test scenario, reducing the equipment occupation space, enhancing the test convenience and comprehensiveness, and effectively promoting the performance evaluation and research and development of frameless motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0037] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 is a schematic diagram of the structure of another perspective of the present invention;

[0039] Figure 3 is Figure 2 a partial enlarged view of A in

[0040] Figure 4 is a schematic diagram of the structure of the first fixture mechanism of the present invention;

[0041] Figure 5 is a schematic diagram of the structure of the second fixture mechanism of the present invention;

[0042] Figure 6 is a schematic diagram of the structure of the adjusting mechanism of the present invention.

[0043] In the figure: 1. Support platform; 2. Rotating tube; 3. Magnetic powder brake; 4. Torque measuring instrument; 5. First electric push rod; 6. Flange; 7. First fixture mechanism; 71. First slider; 72. First fixed plate; 73. Reinforcement shell; 74. Side plate; 75. Screw; 76. Clamping plate; 77. Connecting rod; 78. Rubber plug; 79. Clamping plate; 8. Inner rotor frameless motor; 710. First positioning plate; 711. Lifting box; 712. Second electric push rod; 713. Lifting block; 714. Rubber pad; 715. Exhaust port; 9. Adjusting mechanism; 91. Sliding groove; 92. Lead screw; 93. Sliding rod; 94. Motor; 10. Second fixture mechanism; 101. Second fixed plate; 102. Groove; 103. Second slider; 104. Tightening plate; 105. Forward and reverse lead screw; 106. Tightening disc; 107. Second positioning plate; 108. Second ball; 11. Outer rotor frameless motor; 12. Laser emitter; 13. Laser receiver; 14. Reinforcement frame; 15. Support foot. Detailed implementation manners

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0046] Referring to Figures 1 - 6 , the present invention provides a frameless motor torque test bench, including:

[0047] Support platform 1:

[0048] Rotating tube 2, rotatably arranged on support platform 1, a magnetic powder brake 3 and a torque measuring instrument 4 are arranged on rotating tube 2, one end of rotating tube 2 is fixedly connected with a first electric push rod 5, and the output end of first electric push rod 5 is fixedly connected with a flange 6;

[0049] First fixture mechanism 7, slidably arranged on support platform 1, first fixture mechanism 7 is used for clamping and fixing an inner rotor frameless motor 8, and first fixture mechanism 7 is also used for detachably connecting with flange 6 and transmitting the torque generated when the rotor of inner rotor frameless motor 8 rotates to rotating tube 2;

[0050] Adjusting mechanism 9, arranged on support platform 1, adjusting mechanism 9 is used for driving first fixture mechanism 7 to slide along support platform 1;

[0051] The second fixture mechanism 10 is arranged on the support platform 1 and on the side of the first fixture mechanism 7 away from the rotating tube 2. The second fixture mechanism 10 is used for clamping and fixing the frameless outer rotor motor 11. The second fixture mechanism 10 is also used for detachably connecting with the flange 6 and can transmit the torque generated when the rotor of the frameless outer rotor motor 11 rotates to the rotating tube 2.

[0052] By respectively fixing the frameless inner rotor motor 8 and the frameless outer rotor motor 11 with the first fixture mechanism 7 and the second fixture mechanism 10, only by adjusting the position of the first fixture mechanism 7 through the adjusting mechanism 9, making the first fixture mechanism 7 correspond to or be misaligned with the flange 6 so that the second fixture mechanism 10 corresponds to the flange 6, so that the flange 6 can be respectively applied to connect with the first fixture mechanism 7 or the second fixture mechanism 10. Furthermore, by driving the frameless inner rotor motor 8 or the frameless outer rotor motor 11 to rotate to drive the rotating tube 2 to rotate, the magnetic powder brake 3 and the torque measuring instrument 4 connected to the rotating tube 2 can conduct test experiments, which can meet the test requirements of supporting two different types of frameless motors, without replacing the test platform, adapting to the flexibility requirements of different scenarios, and having flexibility, economy and high precision, significantly improving the adaptability and comprehensive efficiency of the test scenario.

[0053] The magnetic powder brake 3 provides a stable and adjustable load, accurately simulating the motor running resistance under different working conditions, creating reliable conditions for torque testing. The torque measuring instrument 4 is directly connected to the magnetic powder brake 3 through the rotating tube 2, accurately measuring the torque in real time and reducing the transmission error.

[0054] In an embodiment of the present invention, the first fixture mechanism 7 includes:

[0055] The first slider 71 is slidably arranged on the support platform 1;

[0056] The first fixing plate 72 is fixedly connected to the first slider 71. A reinforcing shell 73 is detachably connected to the first fixing plate 72. The frameless inner rotor motor 8 is located inside the reinforcing shell 73;

[0057] A pair of side plates 74 are fixedly connected to the first slider 71 and are respectively located on both sides of the reinforcing shell 73. Screws 75 are in threaded cooperation with the side plates 74. One end of the screw 75 extends into the reinforcing shell 73 and is rotatably connected to a clamping plate 76. A pair of clamping plates 76 respectively abut against both sides of the stator of the frameless inner rotor motor 8;

[0058] The connecting rod 77 is slidably matched with the reinforcing shell 73 along the axial direction of the reinforcing shell 73;

[0059] The rubber plug 78 is sleeved on the connecting rod 77. The rubber plug 78 is used for abutting against the rotor of the frameless inner rotor motor 8 and clamping the frameless inner rotor motor 8 inside the reinforcing shell 73;

[0060] The clamping plate 79 is fixedly connected to one end of the connecting rod 77. The clamping plate 79 is used to abut against the side of the rubber plug 78 away from the frameless inner-rotor motor 8, and the clamping plate 79 is also used to detachably connect to the flange 6.

[0061] The arc-shaped first positioning plate 710 fixedly connected to the clamping plate 76 is disposed on the side of the frameless inner-rotor motor 8 away from the rubber plug 78. The first positioning plate 710 is provided with first balls for abutting against the rotor of the frameless inner-rotor motor 8.

[0062] By placing the frameless inner-rotor motor 8 in the reinforcement housing 73 to abut against the first balls on the first positioning plate 710, by rotating a pair of screw rods 75, the first positioning plate 710 guides the screw rods 75 through the adaptation of the inner cavity configuration of the reinforcement housing 73, so that the threaded engagement of the screw rods 75 and the side plates 74 causes a pair of clamping plates 76 and the first positioning plate 710 to move closer, thereby clamping and fixing the columnar frameless inner-rotor motor 8 by the pair of clamping plates 76. Then, by passing the connecting rod 77 through the frameless inner-rotor motor 8 and the reinforcement housing 73 in sequence, and then connecting the clamping plate 79 to the flange 6. Through the push of the first electric push rod 5, the flange 6 pushes the rubber plug 78 to tightly clamp the frameless inner-rotor motor 8 in the reinforcement housing 73, and the end of the connecting rod 77 away from the clamping plate 79 is connected to the bearing seat on the reinforcement housing 73 through a nut and a connecting plate to achieve locking. Furthermore, when the frameless inner-rotor motor 8 rotates, its rotor drives the rubber plug 78 and the flange 6 through friction to cause the rotating tube 2 to rotate, realizing the transmission of torque.

[0063] By rotating the screw rod 75 to adjust the positions of the pair of clamping plates 76, it can be applicable to frameless inner-rotor motors 8 of different specifications.

[0064] In an embodiment of the present invention, a lifting box 711 is fixedly connected to the first slider 71. A second electric push rod 712 is fixedly connected inside the lifting box 711. The output end of the second electric push rod 712 is fixedly connected to a lifting block 713. The lifting block 713 is provided with an inner arc surface and a rubber pad 714 is fixedly connected to the inner arc surface. The rubber pad 714 is used to abut against the stator of the frameless inner-rotor motor 8. An exhaust port 715 is provided on the side wall of the lifting box 711.

[0065] By pushing the lifting block 713 to lift and lower through the second electric push rod 712, the rubber pad 714 can abut against the stator of the frameless inner-rotor motor 8, realizing fine height adjustment, meeting the stringent requirements of different test scenarios for the position accuracy of the motor, achieving seamless connection of the position and height adjustment of the frameless inner-rotor motor 8, effectively adapting to the installation requirements of motors of different specifications, and improving the versatility of the test bench.

[0066] The rubber pad 714 is fixed to the top of the lifting block 713. It is soft and elastic, providing buffering when contacting the motor, avoiding damage to the motor caused by hard collision, and at the same time increasing the friction force to firmly fix the motor, preventing shaking during the test from affecting the data accuracy.

[0067] In an embodiment of the present invention, the adjusting mechanism 9 includes:

[0068] A sliding groove 91 is opened on the support platform 1, and the first slider 71 is slidably fitted in the sliding groove 91;

[0069] A lead screw 92 is rotatably connected in the sliding groove 91. The lead screw 92 is in threaded cooperation with the first slider 71. One end of the lead screw 92 away from the motor 94 is connected to the end of the sliding groove 91 through a bearing seat, which not only ensures the stable rotation of the lead screw 92 but also reduces frictional losses, prolongs the service life of the components, and improves the smoothness of adjustment;

[0070] A pair of sliding rods 93 are fixedly connected in the sliding groove 91. The sliding rods 93 are slidably fitted with the first slider 71. The sliding rods 93 can effectively restrict the movement trajectory of the first slider 71, preventing it from shifting as the lead screw 92 rotates, greatly improving the stability of the adjustment process, and avoiding affecting the torque measurement accuracy due to shaking;

[0071] A motor 94 is arranged on the support platform 1. The motor 94 is used to drive the lead screw 92 to rotate. The motor 94 serves as a power source, providing a stable driving force for the adjustment process to ensure that the adjustment action is smooth and controllable.

[0072] The motor 94 drives the lead screw 92 to rotate. A pair of sliding rods 93 guide and support the first slider 71. By rotation, the rotational motion is converted into linear displacement, accurately transmitting power to achieve precise adjustment of the position of the first slider 71. Thus, the first slider 71 can displace on the support platform 1, ensuring the accuracy of the position adjustment of the frameless inner-rotor motor 8, providing a reliable position reference for torque testing, and greatly improving the flexibility and accuracy of the frameless motor torque testing.

[0073] In an embodiment of the present invention, a laser emitter 12 is fixedly connected to the first slider 71, and a laser receiver 13 is fixedly connected to the support platform 1. When the laser emitter 12 corresponds to the laser receiver 13, the clamping plate 79 corresponds to the flange 6. It is convenient to accurately adjust the position of the first slider 71 through the laser emitter 12 and the laser receiver 13.

[0074] In an embodiment of the present invention, the second fixture mechanism 10 includes:

[0075] A second fixing plate 101 is fixedly connected to the support platform 1, and a groove 102 is opened on the second fixing plate 101;

[0076] A pair of second sliders 103 are slidably fitted in the groove 102. An arc-shaped pressing plate 104 is fixedly connected to the second slider 103, and the pressing plate 104 is used to abut against the stator of the outer-rotor frameless motor 11.

[0077] A forward and reverse screw 105 is rotatably connected to the support platform 1. The two sections of threads of the forward and reverse screw 105 are respectively in threaded cooperation with a pair of second sliders 103.

[0078] A pressing disk 106 is used to be detachably connected to the flange 6, and the pressing disk 106 is used to abut against the rotor of the outer-rotor frameless motor 11.

[0079] An arc-shaped second positioning plate 107 is fixedly connected to the pressing plate 104. The second positioning plate 107 is arranged on the side of the outer-rotor frameless motor 11 away from the pressing disk 106. A second ball 108 for abutting against the rotor of the outer-rotor frameless motor 11 is arranged on the second positioning plate 107.

[0080] By placing the outer-rotor frameless motor 11 on a pair of pressing plates 104, by rotating the forward and reverse screw 105, the second slider 103 is guided by the adaptation of the second slider 103 and the groove 102 configuration, so that the second slider 103 can slide along the groove 102 with the rotation of the forward and reverse screw 105. Furthermore, a pair of pressing plates 104 can move relatively or away from each other to adapt to the clamping and fixing of outer-rotor frameless motors 11 of different specifications. In cooperation with the connection between the pressing disk 106 and the flange 6, the first electric push rod 5 pushes the pressing disk 106 to tightly clamp the outer-rotor frameless motor 11 between the second positioning plate 107 and the pressing disk 106. Thus, when driving the outer-rotor frameless motor 11 to rotate, the rotation is transmitted to the rotating tube 2 through the friction between its rotor and the pressing disk 106, realizing the transmission of torque.

[0081] In an embodiment of the present invention, a reinforcing frame 14 is arranged on the support platform 1. The reinforcing frame 14 is rotatably connected to the rotating tube 2. The reinforcing frame 14 can enhance the rigidity and stability of the rotating tube 2, ensure smooth rotation, and guarantee the measurement accuracy.

[0082] In an embodiment of the present invention, a plurality of support feet 15 are arranged on the bottom surface of the support platform 1 to stably support and guarantee the overall stability of the test bench during testing, and avoid shaking from affecting the test accuracy.

[0083] Working principle:

[0084] By starting the motor 94, the rotation of the motor 94 drives the lead screw 92 to rotate, thereby causing the first slider 71 to move along the lead screw 92. After the laser emitter 12 and the laser receiver 13 are successfully paired, the first electric push rod 5 is started, so that the flange 6 moves to the right, and the flange 6 is fixedly connected to the clamping plate 79. Thus, through the connecting rod 77, the rubber plug 78 is pressed against the inner ring of the frameless inner rotor motor 8, and the outer ring is pressed against by the clamping plate 76. The first positioning plate 710 is used to prevent the inner ring from shaking. After the test of the frameless inner rotor motor 8 is completed, the first slider 71 is moved to one side. By fixing the flange 6 to the pressing plate 106 and pressing the outer rotor frameless motor 11 by the first electric push rod 5, the outer ring is fixed. By rotating the forward and reverse screw 105, the two pressing plates 104 move outward, thereby fixing the outer rotor frameless motor 11, and thus an efficient test can be carried out.

[0085] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0086] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A frameless motor torque test bench, characterized in that, Comprising: Support platform (1): Rotating tube (2), rotatably arranged on the support platform (1), a magnetic powder brake (3) and a torque measuring instrument (4) are arranged on the rotating tube (2), one end of the rotating tube (2) is fixedly connected with a first electric push rod (5), and the output end of the first electric push rod (5) is fixedly connected with a flange plate (6); First clamping mechanism (7), slidably arranged on the support platform (1), the first clamping mechanism (7) is used for clamping and fixing the frameless inner rotor motor (8), and the first clamping mechanism (7) is also used for detachably connecting with the flange plate (6) and transferring the torque generated when the rotor of the frameless inner rotor motor (8) rotates to the rotating tube (2); Adjusting mechanism (9), arranged on the support platform (1), the adjusting mechanism (9) is used for driving the first clamping mechanism (7) to slide along the support platform (1); Second clamping mechanism (10), arranged on the support platform (1) and on the side of the first clamping mechanism (7) away from the rotating tube (2), the second clamping mechanism (10) is used for clamping and fixing the frameless outer rotor motor (11), and the second clamping mechanism (10) is also used for detachably connecting with the flange plate (6) and transferring the torque generated when the rotor of the frameless outer rotor motor (11) rotates to the rotating tube (2).

2. The frameless motor torque test bench according to claim 1, wherein, The first clamping mechanism (7) includes: First slider (71), slidably arranged on the support platform (1); First fixing plate (72), fixedly connected to the first slider (71), a reinforcing shell (73) is detachably connected to the first fixing plate (72), and the frameless inner rotor motor (8) is located inside the reinforcing shell (73); A pair of side plates (74), fixedly connected to the first slider (71) and located on both sides of the reinforcing shell (73) respectively, a screw rod (75) is in threaded cooperation with the side plates (74), one end of the screw rod (75) extends into the reinforcing shell (73) and is rotatably connected with a clamping plate (76), and a pair of the clamping plates (76) respectively abut against both sides of the stator of the frameless inner rotor motor (8); Connecting rod (77), slidably cooperating with the reinforcing shell (73) along the axial direction of the reinforcing shell (73); Rubber plug (78), sleeved on the connecting rod (77), the rubber plug (78) is used for abutting against the rotor of the frameless inner rotor motor (8) and clamping the frameless inner rotor motor (8) inside the reinforcing shell (73); Clamping plate (79), fixedly connected to one end of the connecting rod (77), the clamping plate (79) is used for abutting against the side of the rubber plug (78) away from the frameless inner rotor motor (8), and the clamping plate (79) is also used for detachably connecting with the flange plate (6).

3. The frameless motor torque test bench according to claim 2, characterized in that, The clamping plate (76) is fixedly connected with an arc-shaped first positioning plate (710). The first positioning plate (710) is arranged on the side of the frameless inner rotor motor (8) away from the rubber plug (78). A first ball for abutting against the rotor of the frameless inner rotor motor (8) is arranged on the first positioning plate (710).

4. A frameless motor torque test bench according to claim 2, characterized in that, The first slider (71) is fixedly connected with a lifting box (711). A second electric push rod (712) is fixedly connected inside the lifting box (711). The output end of the second electric push rod (712) is fixedly connected with a lifting block (713). The lifting block (713) is provided with an inner arc surface, and a rubber pad (714) is fixedly connected to the inner arc surface. The rubber pad (714) is used for abutting against the stator of the frameless inner rotor motor (8). An exhaust port (715) is arranged on the side wall of the lifting box (711).

5. A frameless motor torque test bench according to claim 2, characterized in that, The adjusting mechanism (9) includes: A sliding groove (91) is opened on the support platform (1), and the first slider (71) is slidably fitted in the sliding groove (91); A lead screw (92) is rotatably connected in the sliding groove (91), and the lead screw (92) is in threaded cooperation with the first slider (71); A pair of sliding rods (93) are fixedly connected in the sliding groove (91), and the sliding rods (93) are slidably fitted with the first slider (71); A motor (94) is arranged on the support platform (1), and the motor (94) is used to drive the lead screw (92) to rotate.

6. The frameless motor torque test bench according to claim 2, characterized in that, A laser emitter (12) is fixedly connected to the first slider (71), and a laser receiver (13) is fixedly connected to the support platform (1). When the laser emitter (12) corresponds to the laser receiver (13), the clamping plate (79) corresponds to the flange (6).

7. A frameless motor torque test bench according to claim 1, characterized in that The second clamping mechanism (10) includes: A second fixing plate (101) is fixedly connected to the support platform (1), and a groove (102) is opened on the second fixing plate (101); A pair of second sliders (103) are slidably fitted in the groove (102). An arc-shaped abutting plate (104) is fixedly connected to the second slider (103), and the abutting plate (104) is used for abutting against the stator of the frameless outer rotor motor (11); A forward and reverse screw (105) is rotatably connected to the support platform (1), and the two sections of threads of the forward and reverse screw (105) are respectively in threaded cooperation with a pair of the second sliders (103); An abutting disc (106) is used for detachably connecting with the flange (6), and the abutting disc (106) is used for abutting against the rotor of the frameless outer rotor motor (11).

8. The frameless motor torque test bench according to claim 7, characterized in that An arc-shaped second positioning plate (107) is fixedly connected to the abutting plate (104). The second positioning plate (107) is arranged on the side of the frameless outer rotor motor (11) away from the abutting disc (106). A second ball (108) for abutting against the rotor of the frameless outer rotor motor (11) is arranged on the second positioning plate (107).

9. The frameless motor torque test bench according to claim 1, characterized in that, A reinforcement frame (14) is provided on the support platform (1), and the reinforcement frame (14) is rotatably connected to the rotating pipe (2).

10. A frameless motor torque test bench according to claim 1, characterized in that, A plurality of support feet (15) are provided on the bottom surface of the support platform (1).

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