Speed reducer transmission error testing device

Abstract

The utility model belongs to the field of speed reducers, and particularly relates to a speed reducer transmission error testing device which comprises a workbench. The top end of the workbench is fixedly connected with a servo motor supporting seat; the side wall of the servo motor supporting seat is fixedly connected with a servo motor; the output end of the servo motor is rotationally connected with a rotating shaft; the top end of the rotating shaft is fixedly connected with a coupler; the end part of the coupler is fixedly connected with a rotating shaft; a speed reducer rotates at the end part of the rotating shaft; the end part of the speed reducer is fixedly connected with a rocker arm; the top end of the workbench is fixedly connected with a speed reducer supporting seat; the top end of the speed reducer supporting seat is fixedly connected with a first fixing seat; the top end of the first fixed seat is fixedly connected with a first bracket; the side wall of the first bracket is fixedly connected with a second fixed seat; through the above structure, the rotating speed can be controlled, the accuracy and repeatability of input conditions in the test process can be ensured, and the servo motor is prevented from shaking or displacing in the operation process.

Description

Technical Field

[0001] This utility model relates to the field of speed reducers, specifically a speed reducer transmission error testing device. Background Technology

[0002] In industrial production, speed reducer transmission error testing devices play a crucial role. For the manufacturing industry, they are widely used in high-end equipment manufacturing fields such as automobiles, machine tools, and robots. Through rigorous testing, they ensure the quality of speed reducers and improve the overall performance of products. In the scientific research field, they assist universities and research institutes in conducting research on the transmission characteristics of speed reducers and promote related technological innovation. For speed reducer manufacturers, they are an essential tool in the quality inspection process, effectively screening out unqualified products.

[0003] Speed ​​reducers mainly utilize the principle of gear transmission to achieve speed reduction and torque increase. Taking a common gear reducer as an example, it consists of an input shaft, an output shaft, several gears, and a housing. Power is transmitted from the input shaft, driving the driving gear to rotate. The driving gear meshes with the driven gear. Since the driving gear and the driven gear have different numbers of teeth, according to the inverse relationship between the speed of gear transmission and the number of teeth, the speed of the driven gear will be lower than that of the driving gear, thus achieving the purpose of speed reduction.

[0004] Conventional reducer transmission error testing devices suffer significant power output loss during testing, affecting the accuracy of test results. Therefore, a new reducer transmission error testing device is proposed to address this issue. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A reducer transmission error testing device of this utility model includes a workbench; a servo motor support is fixedly connected to the top of the workbench; a servo motor is fixedly connected to the side wall of the servo motor support; a rotating shaft is rotatably connected to the output end of the servo motor; a coupling is fixedly connected to the top of the rotating shaft; a rotating shaft is fixedly connected to the end of the coupling; a reducer is rotatably connected to the end of the rotating shaft; a rocker arm is fixedly connected to the end of the reducer; a reducer support is fixedly connected to the top of the workbench; a first fixed seat is fixedly connected to the top of the reducer support; a first bracket is fixedly connected to the top of the first fixed seat; a second fixed seat is fixedly connected to the side wall of the first bracket; a probe is rotatably connected to the side wall of the second fixed seat; the probe is correspondingly set with the rocker arm; a dial indicator is fixedly connected to the side wall of the probe; The above structure can control the rotation speed, ensuring the accuracy and repeatability of the input conditions during the test, ensuring that the servo motor will not shake or shift during operation, reducing interruptions or losses in power transmission, and measuring the minute displacement of the rocker arm, thereby reflecting the transmission error of the reducer and improving the measurement sensitivity.

[0007] Preferably, a protective cover is fixedly connected above the worktable; the protective cover is correspondingly set to the worktable; the protective cover can effectively block dust, debris and other objects from entering the interior of the worktable. When the worktable is in operation, dust will be present in the air. If it enters precision components such as dial indicators and couplings, it will affect their normal operation and cause a decrease in measurement accuracy. The protective cover can reduce the low test accuracy caused by impurities entering.

[0008] Preferably, an electric motor is fixedly connected to the top of the protective cover; multiple sets of fan blades are fixedly connected to the output end of the electric motor; a hot air blower is fixedly connected to the inner wall of the protective cover; when the humidity of the test environment is high or the temperature is low, the hot air blower can increase the internal temperature of the workbench, reduce the condensation on the surface of the dial indicator above the workbench, and reduce the inability to see due to condensation. The hot air blower can also dry the residual moisture or water stains after cleaning inside the device, keeping the equipment dry.

[0009] Preferably, a third fixing seat is fixedly connected to the inner wall of the protective cover; a fourth fixing seat is fixedly connected to the inside of the protective cover; the third fixing seat and the fourth fixing seat are arranged correspondingly; a light bar is fixedly connected to the middle of the third fixing seat and the fourth fixing seat; because the protective cover blocks the external light, the light inside the workbench is insufficient, which affects the observation of the transmission error test process. The light bar illuminates the components inside the protective cover, which makes it easier to accurately read the dial indicator value and clearly observe the operating status of the device.

[0010] Preferably, a second support and an elastic cloth are fixedly connected to the top of the workbench; the second support and the elastic cloth are correspondingly arranged; a third support is fixedly connected to the middle of the second support and the elastic cloth; the third support forms a barrier to prevent dust, metal shavings and other impurities from entering the interior of the workbench, reducing dust and components inside the workbench, increasing bearing wear and causing jamming.

[0011] Preferably, multiple sets of rubber pads are fixed to the bottom of the workbench; the rubber pads are arranged correspondingly to the workbench; the multiple sets of rubber pads absorb vibration energy through elastic deformation, reduce the shaking amplitude of the workbench during the test, buffer the rigid contact between the equipment and the ground, and reduce the noise generated by the collision between the equipment and the ground.

[0012] The advantages of this utility model are:

[0013] 1. The reducer transmission error testing device of this utility model uses a servo motor to control the speed and rotation angle, providing stable input power to the reducer, ensuring the accuracy and repeatability of the input conditions during the test, and making the test results reliable. The servo motor support can fix the servo motor in a suitable position, ensuring that the servo motor will not shake or displace during operation, reducing interference with the test results caused by the instability of the servo motor. The coupling smoothly transmits the power of the servo motor to the reducer, ensuring that there is no interruption or loss in the power transmission process. The high measurement accuracy of the dial indicator can measure the small displacement of the rocker arm, thereby reflecting the transmission error of the reducer. The rocker arm can amplify the small angular displacement of the reducer output shaft into the displacement of the rocker arm end, making it easier for the dial indicator to measure, thereby improving the measurement sensitivity.

[0014] 2. The reducer transmission error testing device described in this utility model can effectively block dust, debris and other impurities from entering the workbench through the protective cover. When the machine is running, dust is filled with air. If it enters precision components such as dial indicators and couplings, it will affect their normal operation and cause a decrease in measurement accuracy. The protective cover can reduce the low test accuracy caused by impurities entering. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of the reducer transmission error test of this utility model;

[0017] Figure 2This is a schematic diagram of the structure of the protective cover in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the hot air blower in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the light bar in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the dust-proof cloth in this utility model.

[0021] In the diagram: 1. Workbench; 11. Servo motor support; 12. Servo motor; 13. Rotating shaft; 14. Coupling; 15. First fixed seat; 16. Reducer support; 17. Reducer; 18. Rocker arm; 19. First bracket; 110. Second fixed seat; 111. Probe; 112. Dial indicator; 2. Protective cover; 3. Motor; 31. Fan blade; 32. Hot air blower; 4. Third fixed seat; 41. Light stick; 42. Fourth fixed seat; 5. Second bracket; 51. Elastic cloth; 52. Third bracket; 6. Rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 5As shown in the figure, a reducer transmission error testing device according to an embodiment of the present invention includes a workbench 1; a servo motor support base 11 is fixedly connected to the top of the workbench 1; a servo motor 12 is fixedly connected to the side wall of the servo motor support base 11; a rotating shaft 13 is rotatably connected to the output end of the servo motor 12; a coupling 14 is fixedly connected to the top of the rotating shaft 13; the rotating shaft 13 is fixedly connected to the end of the coupling 14; a reducer 17 is rotatably connected to the end of the rotating shaft 13; a rocker arm 18 is fixedly connected to the end of the reducer 17; and a reducer is fixedly connected to the top of the workbench 1. Support base 16; a first fixed base 15 is fixedly connected to the top of the reducer support base 16; a first bracket 19 is fixedly connected to the top of the first fixed base 15; a second fixed base 110 is fixedly connected to the side wall of the first bracket 19; a probe 111 is rotatably connected to the side wall of the second fixed base 110; the probe 111 is correspondingly set with the rocker arm 18; a dial indicator 112 is fixedly connected to the side wall of the probe 111; during operation, the servo motor 12 is started, driving the rotating shaft 13 and coupling 14 to rotate, placing the probe 111's probe head on the rocker arm 18 and returning it to zero, and then rotating the rocker arm clockwise. Three times, and three times, the rocker arm 18 was reversed. The data was recorded using dial indicator 112. When there is an error in the transmission of reducer 17, the actual rotation angle of rotating shaft 13 will cause a small radial displacement at the end of rocker arm 18. Dial indicator 112 records this displacement and converts it into angular error. The servo motor 12 can control the speed, providing stable input power to reducer 17, ensuring the accuracy and repeatability of input conditions during the test, and making the test results reliable. Servo motor support 11 can fix servo motor 12 in a suitable position, ensuring that servo motor 12... During operation, there will be no shaking or displacement, reducing interference with test results caused by the instability of the servo motor 12. The coupling 14 smoothly transmits the power of the servo motor 12 to the reducer 17, ensuring that there is no interruption or loss in the power transmission process. The high measurement accuracy of the dial indicator 112 can measure the small displacement of the rocker arm 18, thereby reflecting the transmission error of the reducer 17. The rocker arm 18 can amplify the small angular displacement of the output shaft of the reducer 17 into the displacement of the end of the rocker arm 18, making it easier for the dial indicator 112 to measure, thereby improving the measurement sensitivity.

[0025] like Figures 1 to 3 As shown, a protective cover 2 is fixedly connected above the workbench 1; the protective cover 2 is set correspondingly to the workbench 1; during operation, the protective cover 2 can prevent objects around the workbench 1 from colliding, and the protective cover 2 can effectively prevent dust, debris and other objects from entering the interior of the workbench 1. When the workbench is running, dust will fill the air. If it enters precision components such as the dial indicator 112 and the coupling 14, it will affect their normal operation and cause a decrease in measurement accuracy. The protective cover 2 can reduce the low test accuracy caused by impurities entering.

[0026] like Figures 2 to 3As shown, a motor 3 is fixedly connected to the top of the protective cover 2; multiple sets of fan blades 31 are fixedly connected to the output end of the motor 3; a hot air blower 32 is fixedly connected to the inner wall of the protective cover 2; when working, the motor 3 is started to drive the fan blades 31 to rotate and blow air. When the humidity of the test environment is high or the temperature is low, the hot air blower 32 can increase the internal temperature of the workbench 1, reduce the condensation on the surface of the dial gauge 112 above the workbench 1, and reduce the inability to see due to condensation. The hot air blower 32 can also dry the residual moisture or water stains after cleaning inside the device and keep the equipment dry.

[0027] like Figure 1 As shown, a third fixing seat 4 is fixedly connected to the inner wall of the protective cover 2; a fourth fixing seat 42 is fixedly connected to the inside of the protective cover 2; the third fixing seat 4 and the fourth fixing seat 42 are arranged correspondingly; a lamp rod 41 is fixedly connected to the middle of the third fixing seat 4 and the fourth fixing seat 42; during operation, the lamp rod 41 illuminates the inside of the workbench 1. Because the protective cover 2 blocks external light, the light inside the workbench 1 is insufficient, which affects the observation of the transmission error test process. The lamp rod 41 illuminates the components inside the protective cover 2, which makes it easier to accurately read the value of the dial indicator 112 and clearly observe the operating status of the device.

[0028] like Figure 4 As shown, a second support 5 and an elastic cloth 51 are fixedly connected to the top of the workbench 1; the second support 5 and the elastic cloth 51 are correspondingly arranged; a third support 52 is fixedly connected to the middle of the second support 5 and the elastic cloth 51; during operation, contaminants and other pollutants will enter the interior of the workbench 1, and the third support 52 forms a barrier to prevent dust, metal shavings and other impurities from entering the interior of the workbench 1, thereby reducing dust and components inside the workbench 1, increasing bearing wear, and causing jamming.

[0029] like Figure 3 As shown, multiple sets of rubber pads 6 are fixed to the bottom of the workbench 1; the rubber pads 6 are arranged correspondingly to the workbench 1; during operation, the multiple sets of rubber pads 6 absorb vibration energy through elastic deformation, reduce the shaking amplitude of the workbench 1 during the test, buffer the rigid contact between the equipment and the ground, and reduce the noise generated by the collision between the equipment and the ground.

[0030] Working principle: By starting the servo motor 12, the rotating shaft 13 and coupling 14 are driven to rotate, placing the probe 111 on the rocker arm 18 and returning it to zero. The rocker arm 18 is rotated three times in the forward direction and three times in the reverse direction. The data is recorded by the dial indicator 112. When there is an error in the transmission of the reducer 17, the actual rotation angle of the rotating shaft 13 will cause a small radial displacement at the end of the rocker arm 18. The dial indicator 112 records this displacement and converts it into an angular error. The protective cover 2 can prevent collisions with objects around the workbench 1. The protective cover 2 can effectively prevent dust, debris and other objects from entering the interior of the workbench 1. Starting the motor 3 drives the fan blade 31 to rotate, blowing... When the ambient humidity is high or the temperature is low during testing, the hot air blower 32 can increase the internal temperature of the workbench 1, reducing condensation on the surface of the dial gauge 112 above the workbench 1. The electric light bar 41 illuminates the inside of the workbench 1, reducing insufficient light inside the workbench 1 caused by the protective cover 2 blocking external light, which would affect the observation of the transmission error test process. Contaminants and other pollutants may enter the inside of the workbench 1. The third support 52 forms a barrier to block dust, metal shavings and other impurities from entering the inside of the workbench 1. Multiple sets of rubber pads 6 absorb vibration energy through elastic deformation, reducing the shaking amplitude of the workbench 1 during the test and buffering the rigid contact between the equipment and the ground.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for testing transmission error of a speed reducer, characterized in that: The system includes a worktable (1); a servo motor support base (11) is fixedly connected to the top of the worktable (1); a servo motor (12) is fixedly connected to the side wall of the servo motor support base (11); a rotating shaft (13) is rotatably connected to the output end of the servo motor (12); a coupling (14) is fixedly connected to the top of the rotating shaft (13); a rotating shaft (13) is fixedly connected to the end of the coupling (14); a reducer (17) is rotatably connected to the end of the rotating shaft (13); and a rocker arm (18) is fixedly connected to the end of the reducer (17). The top of the workbench (1) is fixedly connected to a reducer support base (16); the top of the reducer support base (16) is fixedly connected to a first fixed base (15); the top of the first fixed base (15) is fixedly connected to a first bracket (19); the side wall of the first bracket (19) is fixedly connected to a second fixed base (110); the side wall of the second fixed base (110) is rotatably connected to a probe (111); the probe (111) being transported is correspondingly arranged with the rocker arm (18); the side wall of the probe (111) is fixedly connected to a dial indicator (112).

2. The speed reducer transmission error testing device according to claim 1, characterized in that: A protective cover (2) is fixedly attached above the workbench (1); the protective cover (2) is set correspondingly to the workbench (1).

3. The speed reducer transmission error testing device according to claim 2, characterized in that: The top of the protective cover (2) is fixedly connected to an electric motor (3); the output end of the electric motor (3) is fixedly connected to multiple sets of fan blades (31); and a hot air blower (32) is fixedly connected to the inner wall of the protective cover (2).

4. The reducer transmission error testing device according to claim 3, characterized in that: The inner wall of the protective cover (2) is fixedly connected to a third fixing seat (4); the inside of the protective cover (2) is fixedly connected to a fourth fixing seat (42); the third fixing seat (4) and the fourth fixing seat (42) are arranged correspondingly; a lamp rod (41) is fixedly connected to the middle of the third fixing seat (4) and the fourth fixing seat (42).

5. The reducer transmission error testing device according to claim 4, characterized in that: The top of the workbench (1) is fixed with a second support (5) and an elastic cloth (51); the second support (5) and the elastic cloth (51) are arranged accordingly; a third support (52) is fixed in the middle of the second support (5) and the elastic cloth (51).

6. The reducer transmission error testing device according to claim 5, characterized in that: Multiple sets of rubber pads (6) are fixed to the bottom of the workbench (1); the rubber pads (6) are arranged correspondingly to the workbench (1).

Images