Motor operation simulation experiment device

Abstract

The invention relates to a motor operation simulation experiment device. The device comprises a support; the transmission shaft is rotatably connected to the support, one end of the transmission shaft is used for being coaxially connected with the output shaft of the tested motor, and the transmission shaft synchronously rotates along with the output shaft of the tested motor; the load assembly is connected with the transmission shaft to provide rotation load for the transmission shaft; the locked-rotor mechanism is arranged on the support and connected with the transmission shaft, the transmission shaft comprises an initial state and an ending state after the transmission shaft rotates by a set number of turns in the first direction from the initial state, and the transmission shaft is limited by the locked-rotor mechanism to rotate in the direction opposite to the first direction in the initial state; the transmission shaft is limited by the locked-rotor mechanism to rotate in the first direction in the ending state. The complete operation condition of the motor can be simulated so that the test work of the whole operation process of the motor can be completed, and more accurate and detailed test data can be provided.

Description

Technical Field

[0001] The invention relates to the field of motor testing technology, and in particular to a motor operation simulation experimental device. Background Art

[0002] The load test and stall test of the motor are essential test items in the production of the motor, and their purpose is to detect the operation of the motor under load and stall conditions. The load test of the motor is to apply a load to the motor output shaft, and then detect the current and other data during the operation of the motor, so as to analyze the load operation of the motor; the stall test of the motor generally fixes the motor output shaft, detects the current and other data during the operation of the motor to analyze the stall operation of the motor.

[0003] In some operating conditions, such as automobile window drive motors, the motor stalls after running a certain number of revolutions under load. The entire operation process of the motor includes load operation and motor stalling. In order to ensure the stability of the motor during the entire operation process, it is necessary to detect the operation of the motor during the entire operation process. However, the current test method can only perform load test and stall test separately, and cannot complete the test of the entire operation process of the motor. Summary of the invention

[0004] Based on the above description, the present invention provides a motor operation simulation experimental device to solve the problem that the test method in the related art can only perform load test and stall test separately, and cannot complete the test of the entire motor operation process.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: The present application provides a motor operation simulation experimental device, and the technical solution adopted is as follows: A motor operation simulation experimental device, comprising: Support; A transmission shaft, which is rotatably connected to the support, one end of which is used to be coaxially connected to the output shaft of the motor under test, and the transmission shaft rotates synchronously with the output shaft of the motor under test; A load assembly connected to the transmission shaft to provide a rotational load to the transmission shaft; A locking mechanism is arranged on the support and connected to the transmission shaft, the transmission shaft includes an initial state and an end state after rotating a set number of times in a first direction from the initial state, the transmission shaft is restricted by the locking mechanism to rotate in a direction opposite to the first direction in the initial state, and the transmission shaft is restricted by the locking mechanism to rotate in the first direction in the end state.

[0006] Preferably, the blocking mechanism comprises: A driving gear coaxially fixed with the transmission shaft; A driven gear, which is rotatably connected to the support and has an axis parallel to the axis of the transmission shaft, and the driven gear is meshed with the driving gear; A blocking structure is arranged between the driven gear and the support, the driven gear includes a first position and a second position after rotating in a second direction by a set angle, when the driven gear is in the first position, it is restricted by the blocking structure to rotate in a direction opposite to the second direction, and when the driven gear is in the second position, it is restricted by the blocking structure to rotate in the second direction, when the driven gear is in the first position, the transmission shaft is in an initial state, when the driven gear is in the second position, the transmission shaft is in an end state, when the transmission shaft rotates in the first direction from the initial state, the driven gear is driven by the driving gear to rotate in the second direction from the first position.

[0007] Preferably, the outer diameter of the driven gear (42) is greater than the outer diameter of the driving gear (41), and the rotation angle of the driven gear (42) from the first position to the second position along the second direction is less than 360°.

[0008] Preferably, the blocking structure comprises: A first blocking member connected to the driven gear and rotating with the driven gear; The second blocking member is connected to the support and is located on the path of the first blocking member rotating with the driven gear, and is suitable for limiting the driven gear from continuing to rotate when the first blocking member rotates with the driven gear to abut against the second blocking member.

[0009] Preferably, two second blocking members are provided, and the two second blocking members are spaced apart along the circumference of the driven gear, and the second blocking members can be moved relative to the support along the circumference of the driven gear or fixed at a set position.

[0010] Preferably, the support includes a mounting plate for mounting the second blocking member, the mounting plate is perpendicular to the axis of the driven gear, an arc groove for mounting the second blocking member is formed on the mounting plate, the arc groove is coaxial with the driven gear, the second blocking member is connected with an adjusting bolt, which is suitable for passing the adjusting bolt through the arc groove and being threadedly connected to the second blocking member to fix the second blocking member to the mounting plate.

[0011] Preferably, the end surface of one end of the transmission shaft used for connecting with the output shaft of the motor to be measured is provided with a square hole used for matching with the output shaft of the motor to be measured.

[0012] Preferably, the load assembly includes a magnetic powder brake.

[0013] Preferably, the support includes a support plate for fixedly mounting the motor to be tested.

[0014] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects: 1. The present application sets a transmission shaft, a load assembly and a locking mechanism, wherein the transmission shaft is connected to the output shaft of the motor under test and rotates synchronously with the output shaft of the motor under test, and the rotation load provided by the load assembly to the transmission shaft acts on the output shaft of the motor under test, so that the load test of the motor under test can be performed. Through the setting of the locking mechanism, it is configured to be restricted by the locking mechanism to rotate in the direction opposite to the first direction when the transmission shaft is in the initial state, and the transmission shaft is restricted by the locking mechanism to rotate in the first direction when it is in the end state, that is, the transmission shaft can be restricted by the locking mechanism to rotate in two opposite rotation directions, so that the two opposite running directions of the motor can be locked. The transmission shaft reaches the end state after rotating a set number of circles from the initial state, and vice versa, the transmission shaft reaches the initial state after rotating a set number of circles in the opposite direction from the end state, and the motor is subjected to a load test during the back and forth rotation between the initial state and the end state, and the motor is subjected to a locked test when the motor reaches the initial state and the end state, and the entire test process can be carried out continuously to simulate the complete operating conditions of the motor, thereby completing the test work of the entire running process of the motor and providing more accurate and detailed test data.

[0015] 2. The present application sets the locking mechanism to include a driving gear, a driven gear and a blocking mechanism. The driving gear and the driven gear cooperate to input the torque of the transmission shaft into the driven gear, and the blocking structure blocks the rotation of the driven gear to achieve the purpose of blocking the rotation of the transmission shaft. Since the outer diameter of the driven gear is larger than the outer diameter of the driving gear, the number of rotations of the driven gear is less than the number of rotations of the transmission shaft. When the transmission shaft is rotated from the initial state to the end state, the number of rotations of the driven gear is less than one circle, so that it is more convenient to set the blocking structure to limit the first position and the second position of the driven gear. In addition, the present application designs the blocking structure to include a first blocking member and a second blocking member. The second blocking member is abutted against the first blocking member to limit the rotation of the driven gear, thereby limiting the first position and the second position of the driven gear. The structure is simple and easy.

[0016] 3. The present application sets two second blocking members, and sets the two second blocking members to be movable relative to the support along the circumference of the driven gear or fixed at a set position. When the first blocking member is respectively abutted against the two second blocking members, the driven gear is respectively located at the first position and the second position. By adjusting the positions of the two second blocking members, the first position and the second position of the driven gear can be adjusted, that is, the initial state and the end state of the transmission shaft and the number of rotations from the initial state to the end state can be adjusted, so as to adapt to the test requirements of the same motor under different operating conditions, or the test requirements of different motors operating under different operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a motor operation simulation experimental device provided by an embodiment of the present invention; Figure 2 A schematic top view of a motor operation simulation experimental device provided in an embodiment of the present invention; Figure 3 A side view schematic diagram of a motor operation simulation experimental device provided in an embodiment of the present invention.

[0018] Description of reference numerals: 1. Support; 11. Base; 12. Mounting plate; 121. Arc groove; 13. Support plate; 14. Fixing plate; 2. Transmission shaft; 21. Square hole; 3. Load assembly; 4. Locking mechanism; 41. Driving gear; 42. Driven gear; 43. First blocking member; 44. Second blocking member; 45. Adjusting bolt. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0021] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0022] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0023] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0024] Reference Figure 1-3 As shown, an embodiment of the present application provides a motor operation simulation experimental device, including a support 1, a transmission shaft 2, a load assembly 3 and a locking mechanism 4. The transmission shaft 2 is rotatably connected to the support 1, and one end of the transmission shaft 2 is used to be coaxially connected to the output shaft of the motor under test, and the transmission shaft 2 rotates synchronously with the output shaft of the motor under test. The load assembly 3 is connected to the transmission shaft 2 to provide a rotational load for the transmission shaft 2. The locking mechanism 4 is arranged on the support 1 and connected to the transmission shaft 2. The transmission shaft 2 includes an initial state and an end state after rotating a set number of circles in a first direction from the initial state. The transmission shaft 2 is restricted by the locking mechanism 4 to rotate in a direction opposite to the first direction in the initial state, and the transmission shaft 2 is restricted by the locking mechanism 4 to rotate in the first direction in the end state.

[0025] When the transmission shaft 2 is connected to the output shaft of the motor under test and rotates synchronously with the output shaft of the motor under test, the rotation load provided by the load assembly 3 to the transmission shaft 2 acts on the output shaft of the motor under test, so that the load test of the motor under test can be carried out. The locking mechanism 4 is configured to be restricted by the locking mechanism 4 to rotate in the direction opposite to the first direction when the transmission shaft 2 is in the initial state, and the transmission shaft 2 is restricted by the locking mechanism 4 to rotate in the first direction when it is in the end state, that is, the transmission shaft 2 can be restricted by the locking mechanism 4 to rotate in two opposite rotation directions, so that the locking test can be carried out on the two opposite running directions of the motor. The transmission shaft 2 rotates a set number of times from the initial state to reach the end state, and vice versa, the transmission shaft 2 rotates a set number of times in the opposite direction from the end state to reach the initial state. The motor is subjected to a load test during the back-and-forth rotation between the initial state and the end state, and the motor is subjected to a locking test when it reaches the initial state and the end state. The entire test process can be carried out continuously to simulate the complete operating conditions of the motor, thereby completing the test work of the entire running process of the motor and providing more accurate and detailed test data.

[0026] Reference Figure 1As shown, the support 1 provides an installation platform for the device. In this embodiment, the support 1 includes a base 11, a mounting plate 12 and a support plate 13. The base 11 is used to be fixed on the test bench, the mounting plate 12 and the support plate 13 are fixedly connected to the base 11, the mounting plate 12 and the support plate 13 are parallel to each other and spaced apart, the transmission shaft 2 is arranged between the mounting plate 12 and the support plate 13 and the axis is perpendicular to the mounting plate 12, and both ends of the transmission shaft 2 pass through the mounting plate 12 and the support plate 13 respectively and are rotatably connected to the mounting plate 12 and the support plate 13 through bearings.

[0027] Reference Figure 1 As shown, in order to facilitate the connection between the transmission shaft 2 and the output shaft of the motor under test, a square hole 21 for matching with the output shaft of the motor under test is provided on the end face of the transmission shaft 2 for connecting with the motor under test, and the end of the output shaft of the motor under test is set to a square shape matching with the square hole 21. After the output shaft of the motor under test is inserted into the square hole 21, it is connected with the transmission shaft 2, and when the motor under test is running, the output shaft and the transmission shaft 2 rotate synchronously. In this embodiment, the square hole 21 is provided at one end of the transmission shaft 2 passing through the support plate 13, and the support plate 13 is also used for fixing and installing the motor under test. Specifically, a fixing plate 14 is connected to the side of the support plate 13 away from the mounting plate 12, and the fixing plate 14 is attached to the support plate 13 and fixed to the support plate 13. Bolt holes for fixing the motor under test are provided on the fixing plate 14. After the output shaft of the motor under test is connected with the transmission shaft 2, the motor under test is fixed to the fixing plate 14 by bolts, so that the motor under test is fixed on the support plate 13.

[0028] Reference Figure 1 As shown, in order to provide a rotational load to the transmission shaft 2, in this embodiment, the load assembly 3 includes a magnetic powder brake, which is mounted on the mounting plate 12 and connected to the transmission shaft 2 to provide a rotational load to the transmission shaft 2. In other embodiments, a suitable load counterweight may be directly connected to the transmission shaft 2 to provide a rotational load to the transmission shaft 2, simulating the load during the actual operation of the motor.

[0029] Further, see Figure 2As shown, the blocking mechanism 4 includes a driving gear 41, a driven gear 42 and a blocking structure. The driving gear 41 is coaxially fixed with the transmission shaft 2. The driven gear 42 is rotatably connected to the support 1 and its axis is parallel to the axis of the transmission shaft 2. The driven gear 42 is meshed with the driving gear 41. The blocking structure is arranged between the driven gear 42 and the support 1. The driven gear 42 includes a first position and a second position after rotating in the second direction by a set angle. When the driven gear 42 is in the first position, it is restricted by the blocking structure to rotate in the direction opposite to the second direction. When the driven gear 42 is in the second position, it is restricted by the blocking structure to rotate in the second direction. When the driven gear 42 is in the first position, the transmission shaft 2 is in the initial state. When the driven gear 42 is in the second position, the transmission shaft 2 is in the end state. When the transmission shaft 2 rotates in the first direction from the initial state, the driven gear 42 is driven by the driving gear 41 to rotate in the second direction from the first position.

[0030] Furthermore, the outer diameter of the driven gear 42 is set to be larger than the outer diameter of the driving gear 41 , and the rotation angle of the driven gear 42 from the first position to the second position along the second direction is less than 360°.

[0031] Reference Figure 1-3 As shown, specifically, the blocking structure includes a first blocking member 43 and a second blocking member 44, wherein the first blocking member 43 is connected to the driven gear 42 and rotates with the driven gear 42, and the second blocking member 44 is connected to the support 1, and the second blocking member 44 is located on the path of the first blocking member 43 rotating with the driven gear 42, and is suitable for limiting the driven gear 42 from continuing to rotate when the first blocking member 43 rotates with the driven gear 42 to abut against the second blocking member 44. In this embodiment, the first blocking member 43 and the second blocking member 44 are both blocking blocks, and the second blocking member 44 is located on the rotation path of the first blocking member 43, so that the first blocking member 43 can rotate with the driven gear 42 to abut against the second blocking member 44, and when the first blocking member 43 abuts against the second blocking member 44, the first blocking member 43 and the driven gear 42 are limited from continuing to rotate under the blocking of the second blocking member 44. One or two second blocking members 44 may be provided. When one second blocking member 44 is provided, when the driven gear 42 is in the first position, the first blocking member 43 abuts against one side of the second blocking member 44, and when the driven gear 42 is in the second position, the first blocking member 43 abuts against the other side of the second blocking member 44; when two second blocking members 44 are provided, the two second blocking members 44 are spaced apart along the circumference of the driven gear 42. At this time, when the first blocking member 43 rotates with the driven gear 42 to abut against one second blocking member 44, the driven gear 42 is in the first position, and when the first blocking member 43 rotates with the driven gear 42 to abut against the other second blocking member 44, the driven gear 42 is in the second position. In this embodiment, two second blocking members 44 are provided for illustration.

[0032] During the design, the number of revolutions of the output shaft when the motor under test runs from the initial state to the final state is made the same as the number of revolutions of the transmission shaft 2 when it rotates from the initial state to the final state under the actual operating conditions of the motor under test. Thus, the load operation and the stalling condition under the operating conditions of the motor are simulated by cooperating with the transmission shaft 2 and the stalling mechanism 4 to complete the simulation test of the entire operating condition process of the motor.

[0033] Reference Figure 1-3 As shown, further, the two second blocking members 44 can be respectively moved relative to the support 1 along the circumference of the driven gear 42 or fixed at a set position. Through this setting, the positions of the two second blocking members 44 can be adjusted, thereby adjusting the first position and the second position of the driven gear 42, that is, adjusting the initial state and the final state of the transmission shaft 2 and the number of revolutions from the initial state to the final state, thereby adapting to the test requirements of the same motor under different operating conditions, or the test requirements of different motors working under different operating conditions.

[0034] Reference Figure 1-3 As shown, specifically, the driven gear 42 and the second blocking member 44 are both mounted on the mounting plate 12, the axis of the driven gear 42 is perpendicular to the mounting plate 12, and the first blocking member 43 is fixed to a side surface of the driven gear 42 close to the mounting plate 12. In order to achieve adjustable installation of the second blocking member 44 on the mounting plate 12, an arc groove 121 for mounting the second blocking member 44 is provided on the mounting plate 12, the arc groove 121 is coaxial with the driven gear 42, and the second blocking member 44 is connected with an adjusting bolt 45, which is suitable for passing the adjusting bolt 45 through the arc groove 121 and being threadedly connected to the second blocking member 44, so as to fix the second blocking member 44 on the mounting plate 12. Specifically, the adjusting bolt 45 passes through the arc groove 121 from the side of the mounting plate 12 away from the driven gear 42 and is threadedly connected to the second blocking member 44. The second blocking member 44 is configured to be cylindrical and has a diameter greater than the width of the arc groove 121. The second blocking member 44 can be fixed at a set position on the mounting plate 12 by tightening the adjusting bolt 45, and the adjusting bolt 45 can be loosened when the position of the second blocking member 44 needs to be adjusted.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor operation simulation experimental device, characterized in that: include: Support (1); A transmission shaft (2) rotatably connected to the support (1), one end of the transmission shaft (2) being coaxially connected to the output shaft of the motor to be measured, and the transmission shaft (2) rotating synchronously with the output shaft of the motor to be measured; A load component (3) connected to the transmission shaft (2) to provide a rotational load for the transmission shaft (2); A locking mechanism (4) is arranged on the support (1) and connected to the transmission shaft (2); the transmission shaft (2) comprises an initial state and an end state after rotating a set number of revolutions in a first direction from the initial state; the transmission shaft (2) is restricted by the locking mechanism (4) to rotate in a direction opposite to the first direction in the initial state; and the transmission shaft (2) is restricted by the locking mechanism (4) to rotate in the first direction in the end state.

2. The motor operation simulation experimental device according to claim 1 is characterized in that: The blocking mechanism (4) comprises: A driving gear (41) coaxially fixed to the transmission shaft (2); A driven gear (42) rotatably connected to the support (1) and having an axis parallel to the axis of the transmission shaft (2), the driven gear (42) meshing with the driving gear (41); A blocking structure is provided between the driven gear (42) and the support (1); the driven gear (42) comprises a first position and a second position after rotating in a second direction by a set angle; when the driven gear (42) is in the first position, it is restricted by the blocking structure to rotate in a direction opposite to the second direction; when the driven gear (42) is in the second position, it is restricted by the blocking structure to rotate in the second direction; when the driven gear (42) is in the first position, the transmission shaft (2) is in an initial state; when the driven gear (42) is in the second position, the transmission shaft (2) is in an end state; when the transmission shaft (2) rotates in the first direction from the initial state, the driven gear (42) is driven by the driving gear (41) to rotate in the second direction from the first position.

3. The motor operation simulation experimental device according to claim 2 is characterized in that: The outer diameter of the driven gear (42) is greater than the outer diameter of the driving gear (41), and the rotation angle of the driven gear (42) from the first position to the second position along the second direction is less than 360°.

4. The motor operation simulation experimental device according to claim 3 is characterized in that: The blocking structure comprises: a first blocking member (43) connected to the driven gear (42) and rotating along with the driven gear (42); A second blocking member (44) is connected to the support (1). The second blocking member (44) is located on a path along which the first blocking member (43) rotates with the driven gear (42), and is suitable for limiting the continued rotation of the driven gear (42) when the first blocking member (43) rotates with the driven gear (42) until it abuts against the second blocking member (44).

5. The motor operation simulation experimental device according to claim 5 is characterized in that: Two second blocking members (44) are provided, and the two second blocking members (44) are arranged at intervals along the circumference of the driven gear (42), and the second blocking members (44) can move relative to the support (1) along the circumference of the driven gear (42) or be fixed at a set position.

6. The motor operation simulation experimental device according to claim 5 is characterized in that: The support (1) comprises a mounting plate (12) for mounting the second blocking member (44), the mounting plate (12) being perpendicular to the axis of the driven gear (42), an arcuate groove (121) for mounting the second blocking member (44) being provided on the mounting plate (12), the arcuate groove (121) being coaxial with the driven gear (42), the second blocking member (44) being connected with an adjusting bolt (45), suitable for being threadably connected to the second blocking member (44) through the adjusting bolt (45) passing through the arcuate groove (121), so as to fix the second blocking member (44) on the mounting plate (12).

7. The motor operation simulation experimental device according to claim 1 is characterized in that: The end surface of one end of the transmission shaft (2) used for connecting with the output shaft of the motor to be tested is provided with a square hole (21) used for matching with the output shaft of the motor to be tested.

8. The motor operation simulation experimental device according to claim 1 is characterized in that: The load component (3) comprises a magnetic powder brake.

9. The motor operation simulation experimental device according to claim 1 is characterized in that: The support (1) comprises a support plate (13) for fixedly mounting the motor to be tested.

Images