Planetary reducer return difference testing device

Abstract

The utility model discloses a planetary reducer return difference testing device, which relates to the technical field of planetary reducers and comprises an upper computer and a base, a planetary reducer is detachably mounted above the base, an input shaft of the planetary reducer is positioned on the left side, and an output shaft of the planetary reducer is positioned on the right side. Position-adjustable motor seats are mounted above the base and on the left side and the right side of the planetary reducer; a first servo motor is mounted on the motor base on the left side of the planetary reducer, and a second servo motor is mounted on the motor base on the right side of the planetary reducer; according to the utility model, the planetary reducer can be rapidly and conveniently installed and tested, the return difference test of the planetary reducer under the condition of any torsion can be realized in the test process, the test time is far shorter than the traditional test time, the test precision is high, and the batch test and production requirements of the planetary reducer are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to planetary reducer technical field especially relates to a planetary reducer back difference testing device. BACKGROUND

[0002] The back difference of planetary reducer, also known as backlash or return gap, is one of the important indicators to measure the accuracy of the reducer. The back difference refers to the small angular displacement of the output end when the input end of the reducer is fixed and withstands 2% of the rated torque. It is usually measured in units of "minutes" (1 / 60 of a degree). The size of the back difference directly affects the accuracy and stability of the reducer, especially in applications that require high-precision positioning, such as robots, automation equipment, and CNC machine tools.

[0003] The traditional planetary reducer back difference test does not have a specific testing device, and the testing process is complex, with a testing time of several minutes per unit. Therefore, the traditional technology has low efficiency in detecting the back difference of the planetary reducer, high testing time cost, and low testing accuracy, which cannot meet the requirements of batch testing and production of planetary reducers. Therefore, the utility model proposes a planetary reducer back difference testing device. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the defects in the prior art and proposes a planetary reducer back difference testing device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A planetary reducer back difference testing device, comprising an upper computer and a base, the base is detachably installed with a planetary reducer on the upper side, the input shaft of the planetary reducer is located on the left side, and the output shaft of the planetary reducer is located on the right side;

[0007] The base is installed with an adjustable position motor seat on the upper side and on the left and right sides of the planetary reducer;

[0008] A first servo motor is installed on the motor seat on the left side of the planetary reducer, a second servo motor is installed on the motor seat on the right side of the planetary reducer, the drive shaft of the first servo motor is detachably connected with the input shaft of the planetary reducer, and the drive shaft of the second servo motor is detachably connected with the output shaft of the planetary reducer;

[0009] A sensor assembly is installed on the drive shaft of the second servo motor, and the sensor assembly is electrically connected with the upper computer.

[0010] Further, the base is installed with a slide rail on the upper side and on the left and right sides of the planetary reducer, and the motor seat is slidably installed on the slide rail on the left and right sides of the planetary reducer.

[0011] Further, the sensor assembly comprises an angle sensor and a torque sensor; the angle sensor and the torque sensor are installed on the driving shaft of the second servo motor, and the angle sensor and the torque sensor are electrically connected with the upper computer.

[0012] Further, the planetary reducer is detachably installed with the base by a bolt installation mode.

[0013] Further, the motor seat on the left and right sides of the planetary reducer is threadedly installed with a locking bolt, and the lower end of the locking bolt is in extrusion contact with the upper surface of the base.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] The planetary reducer can be quickly and conveniently installed and tested, and the planetary reducer can be tested under the condition of any torque size during the testing process, the testing time is much less than the conventional testing time, the testing precision is high, and the batch testing and production requirements of the planetary reducer are met. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0018] In the figure: 1 planetary reducer, 2 sensor assembly, 3 first servo motor, 4 second servo motor, 5 base, 6 slide rail, 7 slide block, 8 motor seat, 9 locking bolt, 101 input shaft, 102 output shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application;

[0020] Reference Figure 1A planet reduction mechanism back difference testing device, including host computer, base 5, the upper side of base 5 is detachably installed with planet reduction mechanism 1, the input shaft 101 of planet reduction mechanism 1 is located at left side, the output shaft 102 of planet reduction mechanism 1 is located at right side, the upper side of base 5 and the left and right sides of planet reduction mechanism 1 are installed with slide rail 6, motor base 8 is slidably installed with slide block 7 on the left and right sides of planet reduction mechanism 1, first servo motor 3 is installed on the left side of motor base 8, second servo motor 4 is installed on the right side of motor base 8, the drive shaft of first servo motor 3 and the input shaft 101 of planet reduction mechanism 1 are detachably opposite to each other, the drive shaft of second servo motor 4 and the output shaft 102 of planet reduction mechanism 1 are detachably opposite to each other, sensor assembly 2 is installed on the drive shaft of second servo motor 4, sensor assembly 2 includes angle sensor, torsion sensor, angle sensor and torsion sensor are installed with the drive shaft of second servo motor 4, and angle sensor and torsion sensor are electrically connected with host computer.The detection data of angle sensor and torsion sensor can be obtained by host computer.

[0021] Locking bolt 9 is threadedly installed on the left and right sides of motor base 8, and the lower end of locking bolt 9 is in extrusion contact with the upper surface of base 5.By rotating locking bolt 9 in the forward direction, the position of motor base 8 on base 5 can be fixed, and the positions of first servo motor 3 or second servo motor 4 relative to base 5 and planet reduction mechanism 1 are also fixed, which facilitates the connection of the drive shaft of first servo motor 3 with input shaft 101 and the connection of the drive shaft of second servo motor 4 with output shaft 102.

[0022] Planet reduction mechanism 1 is detachably installed on base 5 by bolt installation, which facilitates the installation and removal of the planet reduction mechanism 1 to be tested, simplifies the detection process and reduces the operation time.

[0023] The working principle of the utility model is as follows:

[0024] 1, the planet reduction mechanism 1 to be tested is installed on the base 5 by bolt fixation, so that the input shaft 101 faces the first servo motor 3, the position of the first servo motor 3 on the base 5 is adjusted, the drive shaft of the first servo motor 3 is connected with the input shaft 101, the position of the second servo motor 4 on the base 5 is adjusted, and the drive shaft of the second servo motor 4 is connected with the output shaft 102;

[0025] Through the host computer set the torque size is 1.2N·m. First servo motor 3 drive input shaft 101 rotates to the set start test angle test angle can be set according to the need, for example, 30°, 60°, 90°, etc., the second servo motor 4 in accordance with the set torque positive output torque, the angle sensor reads the angle of output shaft 102, and then the second servo motor 4 in accordance with the set torque reverse output torque, the angle sensor reads the angle of output shaft 102 again, the host computer obtains the angle of output shaft 102 read by the angle sensor twice, and the backlash value of the planetary reducer 1 can be calculated by the angle deviation twice.

Claims

1. A planetary reducer backlash testing device, comprising a host computer, a base (5), characterized in that, The upper side of the base (5) is detachably mounted with a planetary reducer (1), the input shaft (101) of the planetary reducer (1) is located on the left side, and the output shaft (102) of the planetary reducer (1) is located on the right side; The upper side of the base (5) and the left and right sides of the planetary reducer (1) are mounted with motor seats (8) with adjustable positions; The first servo motor (3) is mounted on the motor seat (8) on the left side of the planetary reducer (1), the second servo motor (4) is mounted on the motor seat (8) on the right side of the planetary reducer (1), the driving shaft of the first servo motor (3) is detachably connected with the input shaft (101) of the planetary reducer (1), and the driving shaft of the second servo motor (4) is detachably connected with the output shaft (102) of the planetary reducer (1). The driving shaft of the second servo motor (4) is mounted with a sensor assembly (2), and the sensor assembly (2) is electrically connected with the upper computer.

2. The planetary gearhead backlash testing device of claim 1, wherein, The upper side of the base (5) and the left and right sides of the planetary reducer (1) are mounted with sliding rails (6), and the motor seats (8) are slidably mounted on the sliding rails (6) on the left and right sides of the planetary reducer (1) through sliding blocks (7).

3. The planetary gearhead backlash testing device of claim 1, wherein, The sensor assembly (2) comprises an angle sensor and a torsion sensor, the angle sensor and the torsion sensor are mounted on the driving shaft of the second servo motor (4), and the angle sensor and the torsion sensor are electrically connected with the upper computer.

4. The planetary gearhead backlash testing device of claim 1, wherein, The planetary reducer (1) is detachably mounted on the base (5) by bolt mounting.

5. The planetary gearhead backlash testing device of claim 1, wherein, The motor seats (8) on the left and right sides of the planetary reducer (1) are both threadedly mounted with locking bolts (9), and the lower ends of the locking bolts (9) are in extrusion contact with the upper surface of the base (5).

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