A workpiece fixing device on the shaft of a short-shaft motor and its use method and application

Abstract

The present invention relates to the technical field of laboratory speed measurement auxiliary equipment, and in particular to a workpiece fixing device on the shaft of a short-axis motor, and its use method and application, including a motor, a limit assembly for workpiece positioning is provided on the output shaft of the motor, the limit assembly is fixed on the output shaft through a locking assembly, and a fixing assembly for locking the workpiece is provided on the limit assembly. The beneficial effects produced by the present invention are: the locking assembly is locked on the output shaft of the motor, the limit assembly is fixed and locked, and the installation of the limit assembly on the output shaft is ensured to be stable, and the fixing assembly enables the limit assembly to clamp the workpiece, thereby fixing the workpiece, that is, the workpiece is directly installed on the output shaft of the motor through the limit assembly, which effectively solves the problem of difficulty in fixing the workpiece of the short-axis motor.

Description

Technical Field

[0001] The invention relates to the technical field of laboratory speed measurement auxiliary equipment, and in particular to a workpiece fixing device on a shaft of a short-shaft motor and a use method and application thereof. Background Art

[0002] The braking system of a car is related to driving safety. Among them, the reliability of ABS directly affects the safety of emergency braking of the car. The electrical performance of ABS is one of the key test and evaluation contents in the development of new cars. The driving conditions during the use of the car are extremely complex. In order to fully test and evaluate the electrical performance of the automobile braking system, it is usually necessary to build a test track that occupies a huge area and is very expensive; and in the prototype evaluation stage, there are still many potential safety hazards, and there are great risks in direct road testing. In the laboratory, the static electrical performance of the braking system can only be tested by simple braking operations when the car is stationary, and the dynamic electrical performance of the braking system cannot be fully evaluated. By combining the actual vehicle to be tested with the simulation device, the ABS wheel speed ring is driven by the motor to rotate, thereby simulating the acceleration and deceleration movement of the wheel during driving and the ABS speed measurement; according to the vehicle dynamics and the driving conditions to be simulated and evaluated, the motor speed is adjusted in real time; and the ABS wheel speed sensor and braking system of the actual vehicle to be tested are fully utilized. The dynamic electrical performance of the automobile braking system can be safely, efficiently and comprehensively evaluated.

[0003] However, in the laboratory, the ABS wheel speed gear ring cannot be directly fixed to the output shaft of the short-shaft motor. The main reason is that the output shaft of the short-shaft motor is relatively short, and it is difficult to install and fix the ABS wheel speed gear ring to the shaft, and it is difficult to axially position the ABS wheel speed gear ring on the motor output shaft. Usually, a coupling is used to transmit the output of the motor to the moving part of the machine, thereby driving the ABS wheel speed gear ring to rotate. However, for light loads and high response speed requirements, the use of a coupling solution increases the system's rotational inertia, thereby affecting the speed response; and it complicates the machine structure and increases unnecessary costs. Summary of the invention

[0004] The present invention provides a workpiece fixing device on a shaft of a short-shaft motor and a method for using the same, which solves the problem in the prior art that an ABS wheel speed gear ring cannot be directly fixed to a motor output shaft, thus affecting the speed response.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A workpiece fixing device on a shaft of a short-shaft motor comprises a motor, a limit assembly for positioning the workpiece is arranged on the output shaft of the motor, the limit assembly is fixed on the output shaft through a locking assembly, and a fixing assembly for locking the workpiece is arranged on the limit assembly. The locking assembly locks and fixes the limit assembly to ensure that the limit assembly is installed stably, the limit assembly positions the workpiece axially and radially to ensure that the workpiece is installed accurately, and the fixing assembly enables the limit assembly to clamp and fix the workpiece.

[0007] The limit assembly includes a left limit block and a right limit block, both of which are sleeved on the output shaft, and the left limit block is connected to the output shaft through a key. The key transmits torque, and the output shaft drives the limit assembly to rotate through the key.

[0008] The right end surface of the left limit block and the left end surface of the right limit block are respectively matched with the two sides of the locking assembly. The two sides of the locking assembly position the left limit block and the right limit block to ensure that the axial installation position of the limit assembly on the output shaft is accurate.

[0009] The left limit block includes an axial positioning portion and a radial positioning portion which are integrally connected. The radial positioning portion is located on the right side of the axial positioning portion. When in use, the right end face of the axial positioning portion cooperates with the left end face of the workpiece, and the inner circle of the workpiece cooperates with the outer circle of the radial positioning portion.

[0010] The right limit block is a groove structure, which cooperates with the left limit block to form a cavity, and the locking assembly is located in the cavity; when in use, the open end face of the right limit block cooperates with the right end face of the workpiece.

[0011] The fixing assembly includes a fixing bolt and a nut. The left limit block is provided with a through hole I, and the right limit block is provided with a through hole II corresponding to the through hole I. The fixing bolt passes through the through hole I and the through hole II in sequence and is connected with the nut. After the nut is tightened, the left limit block and the right limit block clamp the workpiece.

[0012] The locking assembly comprises an upper fixing half ring and a lower fixing half ring, and the upper fixing half ring and the lower fixing half ring are connected by a set screw.

[0013] The locking assembly comprises an open fixing ring, wherein upper and lower sides of the opening of the open fixing ring are provided with threaded holes corresponding to each other, and set screws are passed through the threaded holes.

[0014] A method for using a workpiece fixing device on a shaft of a short-shaft motor comprises the following steps:

[0015] S1, install the left limit block of the limit assembly on the output shaft of the motor, and connect the left limit block to the output shaft through a connecting key;

[0016] S2, install the locking assembly on the output shaft, and the locking assembly locks the left limit block;

[0017] S3, installing the workpiece onto the left limit block, and the left limit block positions the workpiece;

[0018] S4, install the right limit block of the limit assembly on the output shaft;

[0019] S5, install the fixing assembly so that the fixing assembly fixes the right limit block; and completes the fixation of the workpiece on the motor output shaft.

[0020] The invention discloses an application of a workpiece fixing device on a shaft of a short-shaft motor in the simulation of automobile ABS speed measurement. The workpiece is a gear ring. When in use: the gear ring is mounted on the output shaft of the motor; a wheel speed sensor is mounted above the gear ring; the motor is started, and the output shaft of the motor drives the gear ring to rotate, simulating the acceleration and deceleration movement of the wheel when driving.

[0021] The beneficial effects of the present invention are as follows: the locking assembly is locked on the output shaft of the motor, the limiting assembly is fixed and locked, and the installation stability of the limiting assembly on the output shaft is ensured; the fixing assembly enables the limiting assembly to clamp the workpiece, thereby fixing the workpiece, that is, the workpiece is directly installed on the output shaft of the motor through the limiting assembly, which effectively solves the problem of difficulty in fixing the workpiece of the short-axis motor;

[0022] The fixing device of the present application can mount a workpiece whose inner diameter is several times larger than the output shaft diameter on the output shaft, and can change the limiter components of different sizes according to the inner diameter of the workpiece to adapt to workpieces of different inner diameters, and has strong versatility;

[0023] The fixing device of the present application has low manufacturing cost, the whole device includes few parts, and the whole device is simple and convenient to install, which ensures the convenience of use and installation of the device;

[0024] The fixing device of the present application does not use couplings and bearings, greatly reduces the rotational inertia of the motor load, improves the mechanical response speed of the machine, and expands the application range of the small torque motor.

[0025] The method for using the fixing device of the present application has simple operating steps, so that the gear ring can be quickly installed on the output shaft of the motor, and it is also easy to disassemble without damaging the structure of the motor.

[0026] The application of the fixture of the present application can be used in the laboratory to combine the actual vehicle to be tested with the simulation device, and the ABS wheel speed ring can be driven by a motor to rotate, thereby simulating the acceleration and deceleration movement of the wheel during driving and the ABS speed measurement, thereby safely, efficiently and comprehensively evaluating the dynamic electrical performance of the automobile braking system, eliminating the risk of road tests during the prototype vehicle evaluation stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The present invention is an exploded view of a workpiece fixing device on a shaft for a short-shaft motor.

[0029] Figure 2 This is a structural schematic diagram of locking assembly embodiment 4.

[0030] Figure 3 This is a schematic diagram of the structure of locking assembly embodiment 5.

[0031] Figure 4 This is a schematic diagram of the assembly of the workpiece fixture on the axis.

[0032] Figure 5 This is a schematic diagram of the left limit block structure.

[0033] Figure 6 It is a schematic diagram of the right limit block structure.

[0034] Figure 7 Schematic diagram of the shaft fixture application.

[0035] Figure 8 Output signal diagram of wheel speed sensor.

[0036] In the figure: 1-limiting assembly, 11-left limiting block, 111-axial positioning part, 112-radial positioning part, 113-through hole I, 114-axial hole I, 12-right limiting block, 121-axial hole II, 122-through hole II, 123-opening end face, 2-locking assembly, 21-lower fixing half ring, 22-upper fixing half ring, 23-setting screw, 24-open fixing ring, 3-connecting key, 4-fixing assembly, 41-fixing bolt, 42-nut, 5-motor, 6-output shaft, 7-gear ring, 8-wheel speed sensor. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1, as Figure 1 , Figure 4As shown, a workpiece fixing device on the shaft of a short-shaft motor includes a motor 5, and a limit assembly 1 for positioning the workpiece is provided on the output shaft 6 of the motor 5. The limit assembly 1 is fixed to the output shaft 6 through a locking assembly 2, and a fixing assembly 4 for locking the workpiece is provided on the limit assembly 1. In this embodiment, the motor 5 is a variable frequency motor, and the workpiece is a ring gear 7. The locking assembly 2 fixes the limit assembly 1 on the output shaft 6, so that the limit assembly 1 remains stable on the output shaft 6, and then the limit assembly 1 accurately positions the ring gear 7. The variable frequency motor is convenient for adjusting the rotation speed of the ring gear 7, and can accurately simulate the rotation of the wheel.

[0039] Furthermore, the limit assembly 1 includes a left limit block 11 and a right limit block 12, both of which are sleeved on the output shaft 6, and the left limit block 11 is connected to the output shaft 6 by a key. Specifically, the left limit block 11 and the right limit block 12 cooperate to position and clamp the ring gear 7, and key slots are provided on the output shaft 6 and the left limit block 11, and a connecting key 3 is provided in the key slot. When the output shaft 6 rotates, the connecting key 3 transmits torque, thereby driving the left limit block 11 to rotate, and driving the ring gear 7 to rotate through the left limit block 11, so as to simulate the rotation of the wheel.

[0040] Further, if Figure 5 As shown, the left stopper 11 includes an axial positioning portion 111 and a radial positioning portion 112 which are integrally connected. The radial positioning portion 112 is located on the right side of the axial positioning portion 111. When in use, the right end face of the axial positioning portion 111 matches with the left end face of the workpiece, and the inner circle of the workpiece matches with the outer circle of the radial positioning portion 112. In this embodiment, the axial positioning portion 111 and the radial positioning portion 112 form a stepped truncated cone structure, and an axial hole Ⅰ114 is provided at the center of the left stopper 11, and the output shaft 6 is passed through the axial hole Ⅰ114. A keyway is provided on the axial hole Ⅰ114, and the connecting key 3 is located in the keyway; when the gear ring 7 is installed, the left end face of the gear ring 7 fits with the right end face of the axial positioning portion 111, and the inner circle of the gear ring 7 matches with the outer circle of the radial positioning portion 112, so that the rotation center of the gear ring 7 coincides with the rotation center of the output shaft 6, thereby ensuring the stability of the rotation process of the gear ring 7.

[0041] Further, if Figure 6 As shown, the right stopper 12 is a groove structure, and the groove structure cooperates with the left stopper 11 to form a cavity, and the locking assembly 2 is located in the cavity; when in use, the opening end face 123 of the right stopper 12 cooperates with the right end face of the workpiece. Specifically, the opening end face 123 cooperates with the right end face of the axial positioning portion 111 to position and clamp the axial direction of the gear ring 7, so that the gear ring 7 will not jump along the axial direction when rotating, further ensuring the rotation stability of the gear ring 7.

[0042] Furthermore, the right end face of the left limit block 11 and the left end face of the right limit block 12 are respectively matched with the two sides of the locking assembly 2. During installation, the left end face of the right limit block 12 is fitted with the right end face of the locking assembly 2, and the left end face of the locking assembly 2 is fitted with the right end face of the left limit block 11. The locking assembly 2 is locked and fixed on the output shaft 6, so that it is stably installed on the output shaft 6. The left limit block 11 and the right limit block 12 are positioned by the two side end faces of the locking assembly 2, thereby ensuring that the limit assembly 1 and the locking assembly 2 are accurately installed on the output shaft 6.

[0043] Embodiment 2 differs from Embodiment 1 in that the radial positioning portion 112 is a conical frustum structure, the bottom circle size of the conical frustum structure is larger than the inner circle size of the ring gear 7, the top circle size of the conical frustum structure is smaller than the inner circle size of the ring gear 7, the left limit block 11 and the right limit block 12 cooperate to tighten the two end surfaces of the ring gear 7, and the conical surface of the conical frustum structure centers the ring gear 7, ensuring that the rotation center of the ring gear 7 is consistent with the rotation center of the output shaft 6, thereby ensuring the rotation stability of the ring gear 7.

[0044] Embodiment 3 is different from Embodiment 2 in that the fixing assembly 4 includes a fixing bolt 41 and a nut 42, a through hole Ⅰ113 is provided on the left limit block 11, and a through hole Ⅱ122 corresponding to the through hole Ⅰ113 is provided on the right limit block 12, and the fixing bolt 41 passes through the through hole Ⅰ113 and the through hole Ⅱ122 in sequence and is connected with the nut 42. In this embodiment, the left limit block 11 is provided with four evenly arranged through holes Ⅰ113, and the right limit block 12 is provided with four through holes Ⅱ122 corresponding to the through holes Ⅰ113. After the fixing bolt 41 and the nut 42 are tightened, the distance between the left limit block 11 and the right limit block 12 is reduced, so that the left limit block 11 and the right limit block 12 cooperate to clamp and fix the gear ring 7.

[0045] Embodiment 4 is different from Embodiment 3 in that Figure 2 As shown, the locking assembly 2 includes an upper fixing half ring 21 and a lower fixing half ring 22, and the upper fixing half ring 21 and the lower fixing half ring 22 are connected by a set screw 22. Specifically, the inner arc radius of the upper fixing half ring 21 and the lower fixing half ring 22 is equal to the radius of the output shaft 6, and both ends of the upper fixing half ring 21 and the lower fixing half ring 22 are provided with threaded holes, and the set screw 22 is set in the threaded holes. Tightening the set screw 22 can reduce the distance between the upper fixing half ring 21 and the lower fixing half ring 22, so that the upper fixing half ring 21 and the lower fixing half ring 22 clamp the output shaft 6, thereby fixing the position of the locking assembly 2 on the output shaft 6, and at the same time, the left end faces of the upper fixing half ring 21 and the lower fixing half ring 22 are in contact with the right end face of the left limit block 11.

[0046] Embodiment 5 is different from Embodiment 3 in that Figure 3As shown, the locking assembly 2 includes an open fixing ring 24, and the upper and lower sides of the opening of the open fixing ring 24 are provided with threaded holes corresponding to each other, and a set screw 22 is inserted into the threaded hole. The set screw 22 is tightened to shrink the open fixing ring 24 to clamp the output shaft 6, thereby fixing the open fixing ring 24 on the output shaft 6, and the diameter of the open fixing ring 24 is smaller than the distance from the fixing bolt 41 in the fixing assembly 4 to the center of the output shaft 6, so as to prevent the open fixing ring 24 from interfering with the installation of the fixing assembly 4.

[0047] Embodiment 6, on the basis of embodiment 5, as Figure 7 As shown, a method for using a workpiece fixing device on a shaft of a short-shaft motor comprises the following steps:

[0048] S1, install the left limit block 11 of the limit assembly 1 on the output shaft 6 of the motor 5, and the left limit block 11 is connected to the output shaft 6 through the connecting key 3; specifically, install the connecting key 3 in the keyway on the output shaft 6, the keyway of the left limit block 11 corresponds to the connecting key 3, the output shaft 6 penetrates into the shaft hole Ⅰ114 of the left limit block 11, and the connecting key 3 can transmit torque, so that the output shaft 6 can drive the left limit block 11 to rotate.

[0049] S2, install the locking assembly 2 on the output shaft 6, and the locking assembly 2 locks the left limit block 11; the locking assembly 2 is sleeved on the output shaft 6, and the left end face of the locking assembly 2 is fitted with the right end face of the left limit block 11. After the set screw 22 of the locking assembly 2 is tightened, the locking assembly 2 is clamped and fixed on the output shaft 6, and the locking assembly 2 fixes the position of the left limit block 11 on the output shaft 6, thereby ensuring the stable installation of the limit assembly 1 on the output shaft 6.

[0050] S3, install the workpiece onto the left limit block 11, and the left limit block 11 positions the workpiece; specifically, the workpiece is the ring gear 7, and the left limit block 11 includes an axial positioning portion 111 and a radial positioning portion 112 that are integrally connected, the left end face of the ring gear 7 fits with the right end face of the axial positioning portion 111, the inner circle of the ring gear 7 fits with the outer circle of the radial positioning portion 112, the axial positioning portion 111 positions the ring gear 7 axially, and the radial positioning portion 112 positions the ring gear 7 radially, so that the rotation center of the ring gear 7 coincides with the rotation center of the output shaft 6.

[0051] S4, install the right limit block 12 of the limit assembly 1 on the output shaft 6; specifically, the left end face of the right limit block 12 fits with the right end face of the locking assembly 2, and the output shaft 6 penetrates into the shaft hole II121 of the right limit block 12, and makes the left end face of the right limit block 12 fit with the right end face of the ring gear 7.

[0052] S5. Install and fix the fixing component 4 so that the fixing component 4 fixes the right limit block 12, completing the fixing of the workpiece on the output shaft 6. Specifically, a through hole Ⅰ113 is provided on the left limit block 11, and a through hole Ⅱ122 corresponding to the through hole Ⅰ113 is provided on the right limit block 12. The fixing bolt 41 passes through the through hole Ⅰ113 and the through hole Ⅱ122 in sequence and is then connected to the nut 42. After the fixing bolt 41 and the nut 42 are tightened, the distance between the left limit block 11 and the right limit block 12 is reduced, thereby enabling the left limit block 11 and the right limit block 12 to cooperate to clamp and fix the gear ring 7, and further realizing the installation and fixing of the workpiece on the output shaft 6.

[0053] Embodiment 7. On the basis of Embodiment 6, an application of a workpiece fixing device on the shaft of a short-axis motor in an automotive ABS speed measurement simulation. The workpiece is the gear ring 7. When in use:

[0054] First, install the gear ring 7 on the output shaft 6 of the motor 5. After the gear ring 7 is installed, from left to right in sequence are: the bolt rod 41, the left limit block 11 of the limit component 1, the gear ring 7, the right limit block 12 of the limit component 1, the nut 42, and the locking component 2 is located in the cavity formed by the left limit block 11 and the right limit block 12.

[0055] Then install the wheel speed sensor 8 above the gear ring 7. Specifically, the wheel speed sensor 8 is divided into a Hall wheel speed sensor or a magnetoresistive wheel speed sensor. Remove the wheel speed sensor 8 of the vehicle to be tested and install it above the gear ring 7. The gap between the gear ring 7 and the wheel speed sensor 8 is determined according to the gap between the two in the braking system of the vehicle to be tested.

[0056] Finally, start the motor 5. The output shaft 6 of the motor 5 drives the gear ring 7 to rotate, simulating the acceleration and deceleration of the vehicle wheel during driving. Specifically, the motor 5 is a variable-frequency motor. Calculate the wheel speed in real time, control the speed of the gear ring 7 by adjusting the variable-frequency motor, and realize the simulation of the acceleration and deceleration of the vehicle wheel. And collect data through the output signal of the wheel speed sensor 8.

[0057] Further, as Figure 8 shown, when the motor 5 rotates at a relatively low speed and drives the gear ring 7 to rotate synchronously, the wheel speed sensor 8 outputs a standard sine wave, where the abscissa is time, in seconds; the ordinate is the output of the wheel speed sensor 8, in volts. From this, it can be determined that this device can simulate the acceleration and deceleration of the vehicle wheel during driving and the ABS speed measurement.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A workpiece fixing device on a short-axis motor, comprising a motor (5), It is characterized in that The output shaft (6) of the motor (5) is provided with a limit assembly (1) for positioning a workpiece. The limit assembly (1) is fixed to the output shaft (6) via a locking assembly (2), and the limit assembly (1) is provided with a fixing assembly (4) for locking the workpiece. The limit assembly (1) comprises a left limit block (11) and a right limit block (12). The left limit block (11) and the right limit block (12) are both sleeved on the output shaft (6), and the left limit block (11) is connected to the output shaft (6) via a key. The motor (5) is a variable frequency motor.

2. The workpiece fixing device on the shaft of the short-shaft motor according to claim 1, It is characterized in that The right end surface of the left limit block (11) and the left end surface of the right limit block (12) respectively cooperate with two sides of the locking assembly (2).

3. The workpiece fixing device on the shaft of the short-shaft motor according to claim 1 or 2, It is characterized in that The left limit block (11) comprises an axial positioning portion (111) and a radial positioning portion (112) which are integrally connected. The radial positioning portion (112) is located on the right side of the axial positioning portion (111). When in use, the right end face of the axial positioning portion (111) cooperates with the left end face of the workpiece, and the inner circle of the workpiece cooperates with the outer circle of the radial positioning portion (112).

4. The workpiece fixing device on the shaft of the short-shaft motor according to claim 3, It is characterized in that The right limit block (12) is a groove structure, which cooperates with the left limit block (11) to form a cavity, and the locking assembly (2) is located in the cavity; when in use, the open end face (123) of the right limit block (12) cooperates with the right end face of the workpiece.

5. The workpiece fixing device on the shaft of the short-shaft motor according to claim 4, It is characterized in that The fixing assembly (4) comprises a fixing bolt (41) and a nut (42); a through hole I (113) is provided on the left limit block (11); a through hole II (122) corresponding to the through hole I (113) is provided on the right limit block (12); the fixing bolt (41) passes through the through hole I (113) and the through hole II (122) in sequence and is then locked by the nut (42).

6. The workpiece fixing device on the shaft of the short-shaft motor according to any one of claims 1, 2, 4 and 5, It is characterized in that The locking assembly (2) comprises a lower fixing half ring (21) and an upper fixing half ring (22), wherein the lower fixing half ring (21) and the upper fixing half ring (22) are connected via a set screw (23).

7. The workpiece fixing device on the shaft of the short-shaft motor according to any one of claims 1, 2, 4 and 5, It is characterized in that The locking assembly (2) comprises an open fixing ring (24), wherein upper and lower sides of the opening of the open fixing ring (24) are provided with threaded holes corresponding to each other, and set screws (23) are inserted into the threaded holes.

8. A method for using the workpiece fixing device on the shaft of a short-shaft motor as claimed in any one of claims 1 to 7, It is characterized in that The following steps are involved: S1, installing a left limit block (11) of a limit assembly (1) on an output shaft (6) of a motor (5), and connecting the left limit block (11) to the output shaft (6) via a connecting key (3); S2, installing a locking assembly (2) on the output shaft (6), and the locking assembly (2) locks the left limit block (11); S3, installing the workpiece onto the left limit block (11), and the left limit block (11) positions the workpiece; S4, installing the right limit block (12) of the limit assembly (1) on the output shaft (6); S5, installing the fixing assembly (4) so ​​that the fixing assembly (4) fixes the right limit block (12); thus, the workpiece is fixed on the output shaft (6).

9. Application of the workpiece fixing device on the shaft of a short-shaft motor as claimed in any one of claims 1 to 7 in the simulation of automobile ABS speed measurement, It is characterized in that The workpiece is a gear ring (7). When in use: the gear ring (7) is mounted on an output shaft (6) of a motor (5); a wheel speed sensor (8) is mounted above the gear ring (7); the motor (5) is started, and the output shaft (6) of the motor (5) drives the gear ring (7) to rotate, thereby simulating the acceleration and deceleration movement of the wheel when driving.

Images