Speed reducer starting torque and transmission error testing system

Abstract

The utility model relates to a synchronous speed reducer testing tool, in particular to a speed reducer starting torque and transmission error testing system, which comprises a preassembling component, a testing component and a testing component, the detection assembly comprises a transmission error detection assembly and a starting torque detection assembly; the transmission error detection assembly comprises a transmission detection motor and an angle encoder assembly. The starting torque detection assembly comprises a torque sensor and a torque detection motor; and the lifting assembly is used for driving the detection assembly to lift and is connected and matched with or separated from the to-be-detected speed reducer. The arrangement structure of the speed reducer is improved, longitudinal arrangement of the speed reducer is kept, starting torque detection and transmission error detection are carried out in sequence, the speed reducer detection efficiency is improved, complex operation is avoided, and it can be guaranteed that the detection result is accurate and reliable. The system can be matched with a production line in a butt joint mode, rapid and efficient automatic detection is achieved, and therefore the production and machining efficiency of the speed reducer is improved.

Description

Technical Field

[0001] This utility model relates to the field of synchronous reducer testing fixtures, and is suitable for production line offline testing. Specifically, it relates to a reducer starting torque and transmission error testing system. Background Technology

[0002] Starting torque and transmission error are two important parameters among those related to speed reducers. Currently, speed reducers are tested using two separate test benches: a transmission error test bench and a starting torque test bench. These two tests cannot be performed on the same test bench. The reasons are as follows:

[0003] When testing the starting torque of a speed reducer, the drive motor and the input end of the speed reducer must be directly connected (except for the torque sensor), and there should be no other connecting shaft devices in between. Otherwise, the measured starting torque will contain the friction torque of other connecting shafts, affecting the measurement results. However, speed reducer transmission error requires measuring the rotation angles at the input and output ends of the speed reducer. Therefore, transmission error tests generally require setting up an angle encoder or other measuring device at the input end of the speed reducer to measure the rotation angle. This necessitates a shaft connection between the speed reducer and the drive motor, which is fundamentally different from the requirement of no connecting shaft device in the starting torque test. Therefore, the two tests cannot be performed on the same test bench.

[0004] Therefore, current methods for testing the starting torque and transmission error of speed reducers have the following problems:

[0005] 1. Starting torque and transmission error have different requirements for the test fit structure, requiring more test equipment. There is no equipment that can take into account both tests.

[0006] 2. Currently, after completing one test, the installation needs to be readjusted before another test can be conducted, and the speed reducer under test cannot be installed quickly.

[0007] 3. The operation of the test line is not automated or intelligent enough, and it cannot be connected with the production line to perform synchronous testing in the automated production line.

[0008] It is evident that there is still room for improvement in the testing of speed reducers. Optimization should be carried out to improve the convenience of speed reducer testing, integrate starting torque testing and transmission error testing, and improve the automation and integration of testing. This should be combined with the current production line to improve the efficiency of production and testing. Therefore, more reasonable technical solutions need to be proposed to solve the technical problems existing in the current technology. Utility Model Content

[0009] To overcome at least one of the aforementioned defects, this utility model proposes a test system for starting torque and transmission error of a speed reducer. By improving the structure of the testing equipment, the speed reducer under test is kept longitudinally positioned, and the starting torque and transmission error are tested sequentially in the longitudinal position. This avoids frequent installation and disassembly, and continuous testing can be maintained by alternating between the working position, the test position, and the disassembly position. This system can be coordinated with the production line to improve overall efficiency.

[0010] To achieve the above objectives, the testing system disclosed in this utility model can adopt the following technical solution:

[0011] A test system for the starting torque and transmission error of a speed reducer includes:

[0012] Pre-assembled components are used to install the gearbox under test and transfer the gearboxes under test one by one to the testing position;

[0013] The detection components include a transmission error detection component and a starting torque detection component; the transmission error detection component includes a transmission detection motor and an angle encoder component for detecting transmission error, wherein the angle encoder is used to contact the input and output ends of the receiving reducer and is driven by the transmission motor; the starting torque detection component includes a torque sensor and a torque detection motor for detecting starting torque, wherein the torque sensor is used to contact the input shaft of the receiving reducer and is driven by the torque detection motor.

[0014] The lifting assembly is used to drive the detection assembly to rise and fall and to connect or separate from the reducer under test; the lifting assembly includes a main lifting seat and an auxiliary lifting seat set on the main lifting seat, and the transmission error detection assembly and the starting torque detection assembly are respectively set on the main lifting seat and the auxiliary lifting seat.

[0015] The aforementioned testing system detects starting torque by vertically positioning the reducer under test and connecting it longitudinally via a shaft. Without disassembling the reducer, the connection for detecting starting torque is disconnected, and the connection for detecting transmission error is connected, allowing for continued testing of transmission error. This single system enables both starting torque and transmission error detection, improving the efficiency and convenience of reducer testing while ensuring its reliability.

[0016] Furthermore, the pre-installed component, used to mount the reducer under test and switch its position, can be implemented in various ways, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the pre-installed component includes a pre-installed tray with several mounting positions for connecting the reducer under test. When using this solution, several mounting positions can be set around the perimeter of the pre-installed tray. By rotating the pre-installed tray and switching the positions of the mounting positions, the reducer under test can be switched to the testing position.

[0017] Furthermore, to achieve the rotation of the pre-assembled tray, it can be driven by a corresponding drive mechanism. The structure is not uniquely limited; here, an optimization is proposed, and one feasible option is suggested: a switching drive assembly is installed below the pre-assembled tray. This assembly includes a drive motor to rotate the pre-assembled tray. A positioning assembly is also provided, comprising several sensors and transmitters correspondingly arranged on the circumference. The sensors rotate synchronously with the pre-assembled tray, and the transmitter emits a signal. The change in signal from the sensors determines the current rotation angle of the pre-assembled tray. With this scheme, the drive motor can directly rotate the pre-assembled tray, or it can be driven by a transmission component. The transmitters are spaced apart in the rotation direction of the pre-assembled tray. For example, if four mounting positions are set, the mounting positions are evenly spaced and placed every 90°. Similarly, four sensors are also set, one every 90°. This scheme can accurately determine the rotation angle of the pre-assembled tray and accurately switch the speed reducer under test to the detection position.

[0018] Furthermore, when the drive motor cooperates with the pre-installed tray through the transmission structure and drives its rotation, the switching speed requirements of the pre-installed tray can be met. The transmission structure can adopt various schemes and is not limited to a single one. Here, we optimize and propose one feasible option: a transmission seat is installed below the pre-installed tray, and the transmission seat is driven to rotate by the drive motor. The pre-installed tray and the transmission seat rotate synchronously. A lifting guide mechanism and a lifting drive mechanism are provided between the pre-installed tray and the transmission seat. The lifting drive mechanism and the lifting guide mechanism are used to drive the pre-installed tray to move directionally relative to the transmission seat. When adopting the above scheme, a gear pair can be installed in the transmission seat for transmission cooperation, or a belt drive structure, chain drive structure, etc., can be used for transmission cooperation.

[0019] Furthermore, the main lifting seat and the auxiliary lifting seat respectively drive the error detection component and the starting torque detection component. Various coordination methods can be adopted, and the structure is not limited to a single one. Here, we optimize and propose one feasible option: The main lifting seat is provided with a first mounting base. The angle encoder component includes an input angle encoder component, which is mounted on the first mounting base and used to connect to the input shaft of the reducer under test. The main lifting seat is also provided with a second mounting base, and the transmission detection motor is mounted on the second mounting base and cooperates with the input angle encoder component. With the above scheme, both the first and second mounting bases are fixedly connected to the main lifting seat and rise and fall synchronously with it. Therefore, the main lifting seat can drive the input angle encoder component to rise and fall and connect or disconnect from the input end of the reducer under test.

[0020] Furthermore, during transmission error detection, it is necessary to detect the angular deflection at both the input and output ends of the reducer under test, thereby detecting the total transmission error. This can be achieved through various schemes, resulting in multiple detection structures, and the structure is not limited to a single one. Here, we optimize and propose one feasible option: the angle encoder assembly also includes an output angle encoder assembly, which is located below the input angle encoder assembly and is used to connect and cooperate with the output shaft of the reducer under test. The output angle encoder assembly is driven by a third lifting mechanism and can be docked or disconnected from the output shaft. When adopting the above scheme, the output angle encoder assembly can be docked or disconnected from the output shaft of the reducer under test under the drive of the third lifting mechanism, thereby cooperating with the input angle encoder assembly to realize the detection of transmission error.

[0021] Furthermore, the input angle encoder assembly provides driving power to the reducer under test, thereby realizing the rotation of the internal shaft of the reducer and detecting transmission errors. The composition of the input angle encoder assembly can be constructed in various forms, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: The input angle encoder assembly includes a transmission sleeve mounted on a second mounting base. The transmission sleeve is driven by a transmission detection motor and connected to the input angle encoder. The input angle encoder is connected to the input shaft of the reducer under test. When adopting the above scheme, the transmission sleeve and the input angle encoder are coaxially coupled and rotate. When connected to the input shaft of the reducer, power can be accurately transmitted to the input shaft and drive it to rotate.

[0022] Furthermore, the auxiliary lifting seat is used to drive the starting torque detection component and to connect with or separate from the speed reducer under test, without interfering with the transmission error detection component. Various solutions can be used to achieve this, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the auxiliary lifting seat is positioned above the first mounting base. When the auxiliary lifting seat lowers the torque sensor, the connecting shaft at the torque sensor passes through the input angle encoder component and is coaxially connected to the input shaft of the speed reducer under test. The connecting shaft and the input angle encoder component are each individually connected to the speed reducer under test. With this solution, a lifting slide rail is formed between the auxiliary lifting seat and the main lifting seat, thus realizing the lifting action.

[0023] Furthermore, the reducer under test can be fixed on a pre-installed tray for testing. To improve stability and reliability, a separate testing structure can be set up, and the reducer under test can be transferred to the testing structure for fixation before testing. Various solutions can be implemented, and the structure is not limited to a single one. Here, we optimize and propose one feasible option: it also includes a test base, on which test positions are formed to cooperate with the reducer under test; the test base is also provided with several fixing mechanisms to assist in fixing the reducer under test. When adopting the above solution, the test base includes a support platform for supporting the reducer under test, and the test positions on the support platform, in conjunction with the fixing mechanisms, fix the reducer, maintaining stability and reliability even when the reducer rotates. In some solutions, the fixing mechanism can be a fixing arm, which can be driven hydraulically, pneumatically, or through a mechanical transmission pair.

[0024] The above discloses the composition of the testing system. This utility model also discloses a method for conducting specific tests using the above testing system, which will be described below.

[0025] A method for testing the starting torque and transmission error of a speed reducer, using the testing system described above, includes:

[0026] The gearbox under test is placed on the pre-assembled assembly and then transferred to the testing position using the pre-assembled assembly.

[0027] The gearbox under test is lowered and fixed to the test mount from the pre-assembled components;

[0028] Lower the starting torque detection component and align the connecting shaft with the input shaft of the reducer under test, then the starting torque detection motor will detect the starting torque; after the detection is complete, raise the starting torque component to separate the connecting shaft from the input shaft of the reducer under test.

[0029] Connect the transmission error detection component to the reducer under test, including lowering the input angle encoder component and connecting it to the input end of the reducer under test, and raising the output angle encoder component and connecting it to the output end of the reducer under test; start the drive motor to perform transmission error detection, and after the detection is completed, disconnect the transmission error detection component from the reducer under test;

[0030] After testing, lift the speed reducer and assemble it into the pre-assembled components. Then, switch the position to the disassembly position and remove it. At the same time, switch another speed reducer to the testing position and repeat the above operation.

[0031] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include:

[0032] This invention improves the structure of the speed reducer, maintaining its longitudinal orientation and performing starting torque and transmission error detection sequentially, eliminating the need for repeated disassembly and assembly operations on the same equipment. This improves the efficiency of speed reducer testing, avoids complex operations, and ensures the accuracy and reliability of the test results. The system can be integrated with speed reducer production lines to achieve faster and more efficient automated testing, thereby improving the production efficiency of speed reducers. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of the test system.

[0035] Figure 2 This is a schematic diagram of the overall internal structure of the test system.

[0036] Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle.

[0037] Figure 4 A schematic diagram of the overall structure of the test system after removing pre-installed components.

[0038] Figure 5 for Figure 4 A magnified view of the local structure at point B.

[0039] Figure 6 This is a schematic diagram of the overall structure of the pre-assembled components.

[0040] Figure 7 This is a side view of the pre-assembled components.

[0041] In the above attached figures, the meanings of each label are as follows:

[0042] 1. Main lifting seat; 2. Auxiliary lifting seat; 3. Starting torque detection assembly; 301. Torque detection motor; 302. Torque sensor; 303. Connecting shaft; 4. Transmission error detection assembly; 401. Transmission sleeve; 402. Input angle encoder assembly; 403. Transmission detection motor; 404. Second mounting seat; 405. First mounting seat; 406. Output angle encoder assembly; 5. Pre-installation assembly; 501. Pre-installation tray; 502. Mounting position; 503. Mounting retainer; 504. Positioning pin; 505. Sensor; 506. Transmitter; 507. Transmission seat; 508. Drive motor; 509. Lifting guide mechanism; 510. Lifting drive mechanism; 6. Base; 7. Frame; 8. Reducer under test; 9. Test seat; 901. Test position; 10. Third lifting mechanism. Detailed Implementation

[0043] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.

[0044] To address the existing problems of requiring separate testing of starting torque and transmission error on two separate devices, which necessitates frequent disassembly and assembly, resulting in cumbersome equipment use and low operational efficiency, the following embodiments optimize and overcome the shortcomings of the prior art.

[0045] Example 1

[0046] like Figures 1 to 7 As shown, this embodiment provides a test system for the starting torque and transmission error of a speed reducer, including:

[0047] Pre-installed component 5 is used to install the reducer 8 under test and transfer the reducer 8 under test one by one to the test position;

[0048] The detection components include a transmission error detection component 4 and a starting torque detection component 3. The transmission error detection component 4 includes a transmission detection motor 403 for detecting transmission errors and an angle encoder assembly. The angle encoder is used to interface with the input and output ends of the receiving reducer 8 and is driven by the transmission motor. The starting torque detection component 3 includes a torque sensor 302 for detecting starting torque and a torque detection motor 301. The torque sensor 302 is used to interface with the input shaft of the receiving reducer 8 and is driven by the torque detection motor 301.

[0049] The lifting assembly is used to drive the detection assembly to lift and connect or separate from the reducer 8 under test. The lifting assembly includes a main lifting seat 1 and an auxiliary lifting seat 2 set on the main lifting seat 1. The transmission error detection assembly 4 and the starting torque detection assembly 3 are respectively set on the main lifting seat 1 and the auxiliary lifting seat 2.

[0050] Preferably, in this embodiment, the testing system further includes a base 6 and a frame 7, the pre-installed component 5 is disposed on the base 6, and the detection component and the lifting component are disposed on the frame 7.

[0051] The testing system disclosed in this embodiment detects the starting torque by vertically arranging the reducer 8 under test and connecting it with a shaft in the longitudinal direction. Without disassembling the reducer, the connection structure for detecting the starting torque is disconnected, and the connection structure for detecting transmission error is connected, allowing for continued testing of transmission error. This single device can detect both starting torque and transmission error, improving the efficiency and convenience of reducer testing while ensuring its reliability.

[0052] The pre-installation component 5 is used to install the reducer 8 under test and to switch its position. Various solutions can be used, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the pre-installation component 5 includes a pre-installation tray 501, which has several mounting positions 502 for connecting the reducer 8 under test. When using the above solution, several mounting positions 502 can be set around the perimeter of the pre-installation tray 501. The pre-installation tray 501 rotates and switches the positions of the mounting positions 502, thereby switching the reducer under test to the test position.

[0053] Preferably, in this embodiment, the mounting position 502 forms an embedded groove, a mounting retaining ring 503 is provided in the embedded groove, and a plurality of positioning pins 504 that are aligned with the reducer 8 to be tested are also provided at the edge of the embedded groove.

[0054] To achieve the rotation of the pre-installed tray 501, it can be driven by a corresponding drive mechanism. The structure is not uniquely limited; this embodiment optimizes the process and adopts one feasible option: a switching drive assembly is provided below the pre-installed tray 501. This assembly includes a drive motor 508 for rotating the pre-installed tray 501. A positioning assembly is also provided, comprising several sensors 505 and transmitters 506 correspondingly arranged on the circumference. The sensors 505 rotate synchronously with the pre-installed tray 501, and the transmitters 506 emit signals and determine the current angle of rotation of the pre-installed tray 501 based on the signal changes generated by the sensors 505. With this scheme, the drive motor 508 can directly rotate the pre-installed tray 501, or it can be driven by a transmission component. The transmitters 506 are spaced apart in the rotation direction of the pre-installed tray 501. For example, when four mounting positions 502 are provided, the mounting positions 502 are evenly spaced and placed every 90°. Similarly, four sensors 505 are also provided, placed every 90°. This approach can accurately determine the angle of rotation of the pre-installed pallet 501 and precisely switch the reducer 8 under test to the detection position.

[0055] When the drive motor 508 cooperates with the pre-installed tray 501 through the transmission structure and drives it to rotate, the switching speed requirements of the pre-installed tray 501 can be met. The transmission structure can adopt various schemes, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: a transmission seat 507 is provided below the pre-installed tray 501. The transmission seat 507 is driven to rotate by the drive motor 508, and the pre-installed tray 501 and the transmission seat 507 rotate synchronously. A lifting guide mechanism 509 and a lifting drive mechanism 510 are provided between the pre-installed tray 501 and the transmission seat 507. The lifting drive mechanism 510 and the lifting guide mechanism 509 are used to drive the pre-installed tray 501 to move directionally relative to the transmission seat 507. When adopting the above scheme, a gear pair can be provided in the transmission seat 507 for transmission cooperation, or a belt drive structure, chain drive structure, etc., can be provided for transmission cooperation.

[0056] The main lifting seat 1 and the auxiliary lifting seat 2 respectively drive the error detection component and the starting torque detection component 3 to operate. Various cooperation schemes can be adopted, and the structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the main lifting seat 1 is provided with a first mounting seat 405, and the angle encoder component includes an input angle encoder component 402, which is mounted on the first mounting seat 405 and used to connect to the input shaft of the reducer 8 under test; the main lifting seat 1 is also provided with a second mounting seat 404, and the transmission detection motor 403 is mounted on the second mounting seat 404 and cooperates with the input angle encoder component 402. With the above scheme, both the first mounting seat 405 and the second mounting seat 404 are fixedly connected to the main lifting seat 1 and rise and fall synchronously with the main lifting seat 1. Therefore, the main lifting seat 1 can drive the input angle encoder component 402 to rise and fall and connect or disconnect from the input end of the reducer 8 under test.

[0057] When detecting transmission errors, it is necessary to detect the angular deflection at both the input and output ends of the reducer 8 under test, thereby detecting the total transmission error. This can be achieved through various schemes, resulting in various detection structures. The structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the angle encoder assembly also includes an output angle encoder assembly 406. The output angle encoder assembly is located below the input angle encoder assembly 402 and is used to connect and cooperate with the output shaft of the reducer 8 under test. The output angle encoder assembly 406 is driven by the third lifting mechanism 10 and can be connected or disconnected from the output shaft. When the above scheme is adopted, the output angle encoder assembly 406 can be connected or disconnected from the output shaft of the reducer 8 under test under the drive of the third lifting mechanism 10, thereby cooperating with the input angle encoder assembly 402 to realize the detection of transmission errors.

[0058] The input angle encoder assembly provides driving power to the reducer under test, thereby realizing the rotation of the internal shaft of the reducer and detecting transmission errors. The composition of the input angle encoder assembly can be constructed in various forms, and its structure is not limited to one specific form. This embodiment optimizes and adopts one feasible option: the input angle encoder assembly 402 includes a transmission sleeve 401 disposed on the second mounting base 404. The transmission sleeve 401 is driven by the transmission detection motor 403 and is connected and cooperates with the input angle encoder. The input angle encoder is connected and cooperates with the input shaft of the reducer 8 under test. When the above scheme is adopted, the transmission sleeve 401 and the input angle encoder are coaxially cooperated and rotate. When connected to the input shaft of the reducer, the power can be accurately transmitted to the input shaft and drive it to rotate.

[0059] The auxiliary lifting seat 2 is used to drive the starting torque detection component 3 to operate and to connect with or separate from the speed reducer under test, without interfering with the transmission error detection component 4. Various solutions can be used to achieve this, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the auxiliary lifting seat 2 is positioned above the first mounting base 405. When the auxiliary lifting seat 2 drives the torque sensor 302 to descend, the connecting shaft 303, which is engaged with the torque sensor 302, passes through the input angle encoder component 402 and is coaxially engaged with the input shaft of the speed reducer 8 under test. The connecting shaft 303 and the input angle encoder component 402 are each individually connected to the speed reducer 8 under test. With the above solution, a lifting slide rail is formed between the auxiliary lifting seat 2 and the main lifting seat 1, thereby realizing the lifting action.

[0060] The speed reducer under test can be fixed on the pre-installed tray 501 for testing. To improve stability and reliability, a separate testing structure can also be set up, and the speed reducer under test can be transferred to the testing structure for fixing before testing. Various solutions can be implemented, and the structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: it also includes a test base 9, on which test positions 901 are formed to cooperate with the speed reducer under test 8; the test base 9 is also provided with several fixing mechanisms to assist in fixing the speed reducer under test 8. When the above solution is adopted, the test base 9 includes a support platform for supporting the speed reducer under test, and the test positions 901 on the support platform cooperate with the fixing mechanisms to fix the speed reducer, maintaining stability and reliability even when the speed reducer rotates. In some solutions, the fixing mechanism can be a fixing arm, which can be driven hydraulically, pneumatically, or through a mechanical transmission pair.

[0061] Example 2

[0062] The above embodiment 1 discloses the composition of the test system. This embodiment also discloses a method for conducting specific tests using the above test system, which will be described below.

[0063] A method for testing the starting torque and transmission error of a speed reducer, using the testing system described above, includes:

[0064] The reducer 8 to be tested is placed on the pre-assembled component 5, and the reducer 8 to be tested is transferred to the testing position through the pre-assembled component 5;

[0065] The gearbox 8 to be tested is lowered and fixed to the test stand 9 from the pre-installed component 5;

[0066] Lower the starting torque detection component 3 and mate the connecting shaft 303 with the input shaft of the reducer 8 under test, and the starting torque detection motor 301 will detect the starting torque; after the detection is completed, raise the starting torque component to separate the connecting shaft 303 from the input shaft of the reducer 8 under test.

[0067] The transmission error detection component 4 is connected to the reducer 8 under test, including the lowering input angle encoder component 402 connected to the input end of the reducer 8 under test, and the raising output angle encoder component 406 connected to the output end of the reducer 8 under test; the transmission motor is started to perform transmission error detection, and after the detection is completed, the transmission error detection component 4 is disconnected from the reducer 8 under test.

[0068] After the test is completed, lift the reducer and assemble it into the pre-assembled component 5. Switch the position to the disassembly position and remove it. At the same time, switch the other reducer 8 to the testing position and repeat the above operation.

[0069] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be defined in the claims.

Claims

1. A test system for starting torque and transmission error of a speed reducer, characterized in that, include: Pre-installed component (5) is used to install the reducer under test (8) and transfer the reducer under test (8) one by one to the test position; The detection components include a transmission error detection component (4) and a starting torque detection component (3); the transmission error detection component (4) includes a transmission detection motor (403) for detecting transmission error and an angle encoder component, the angle encoder being used to contact the input and output ends of the receiving reducer (8) and being driven by the transmission motor; the starting torque detection component (3) includes a torque sensor (302) for detecting starting torque and a torque detection motor (301), the torque sensor (302) being used to contact the input shaft of the receiving reducer (8) and being driven by the torque detection motor (301); The lifting assembly is used to drive the detection assembly to lift and connect or separate from the speed reducer (8) under test; the lifting assembly includes a main lifting seat (1) and an auxiliary lifting seat (2) set on the main lifting seat (1), and the transmission error detection assembly (4) and the starting torque detection assembly (3) are respectively set on the main lifting seat (1) and the auxiliary lifting seat (2).

2. The speed reducer starting torque and transmission error testing system according to claim 1, characterized in that: The pre-installed component (5) includes a pre-installed tray (501), which has several mounting positions (502) for connecting the speed reducer (8) to be tested.

3. The speed reducer starting torque and transmission error testing system according to claim 2, characterized in that: A switching drive assembly is provided below the pre-installed tray (501), which includes a drive motor (508) for rotating the pre-installed tray (501); a positioning assembly is also provided, which includes a plurality of sensors (505) and transmitters (506) arranged on the circumference. The sensors (505) rotate synchronously with the pre-installed tray (501), and the transmitters (506) send signals and determine the current angle of rotation of the pre-installed tray (501) based on the signal change caused by the signal encountering the sensor (505).

4. The speed reducer starting torque and transmission error testing system according to claim 3, characterized in that: A transmission seat (507) is provided below the pre-installed tray (501). The transmission seat (507) is driven to rotate by a drive motor (508). The pre-installed tray (501) and the transmission seat (507) rotate synchronously. A lifting guide mechanism (509) and a lifting drive mechanism (510) are provided between the pre-installed tray (501) and the transmission seat (507). The lifting drive mechanism (510) and the lifting guide mechanism (509) are used to drive the pre-installed tray (501) to move up and down relative to the transmission seat (507).

5. The speed reducer starting torque and transmission error testing system according to claim 1, characterized in that: The main lifting seat (1) is provided with a first mounting seat (405), and the angle encoder assembly includes an input angle encoder assembly (402), which is mounted on the first mounting seat (405) and used to connect to the input shaft of the reducer (8) under test; the main lifting seat (1) is also provided with a second mounting seat (404), and the transmission detection motor (403) is mounted on the second mounting seat (404) and cooperates with the input angle encoder assembly (402).

6. The speed reducer starting torque and transmission error testing system according to claim 5, characterized in that: The angle encoder assembly also includes an output angle encoder assembly (406), which is located below the input angle encoder assembly (402) and is used to connect to the output shaft of the reducer (8) under test; the output angle encoder assembly (406) is driven by the third lifting mechanism (10) and is connected to or separated from the output shaft.

7. The speed reducer starting torque and transmission error testing system according to claim 5 or 6, characterized in that: The input angle encoder assembly (402) includes a transmission sleeve (401) mounted on a second mounting base (404). The transmission sleeve (401) is driven by a transmission detection motor (403) and connected to the input angle encoder. The input angle encoder is connected to the input shaft of the reducer (8) under test.

8. The speed reducer starting torque and transmission error testing system according to claim 5, characterized in that: The auxiliary lifting seat (2) is positioned above the first mounting seat (405). When the auxiliary lifting seat (2) drives the torque sensor (302) to descend, the connecting shaft (303) that is engaged with the torque sensor (302) passes through the input angle encoder assembly (402) and is coaxially engaged with the input shaft of the reducer (8) under test. The connecting shaft (303) and the input angle encoder assembly (402) are respectively individually engaged with the reducer (8) under test.

9. The speed reducer starting torque and transmission error testing system according to claim 1, characterized in that: It also includes a test base (9), on which a test position (901) is formed to cooperate with the speed reducer (8) under test; the test base (9) is also provided with a number of fixing mechanisms to help fix the speed reducer (8) under test.

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