High-precision RV speed reducer comprehensive testing device

A comprehensive testing and reducer technology, applied in the direction of measuring devices, testing of machine/structural components, testing of mechanical components, etc., can solve the problem of decreased accuracy, low accuracy of assembly process, failure to obtain backlash, backlash and torsion Rigidity and other issues to achieve the effect of simplifying assembly, assembly and disassembly process

Pending Publication Date: 2019-11-22
上海羿弓精密科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

The utility model patent with the publication number CN206399652U discloses a comprehensive testing device. Although the scheme can measure various parameters, since the magnetic powder brake cannot be actively loaded, the hysteresis curve cannot be tested, so it is impossible to obtain accurate hysteresis, gear backlash and torsional stiffness
[0004] In addition, there are many defects in the existing RV reducer comprehensive test device: 1) the assembly and disassembly process of the RV reducer is more complicated, the accuracy of the assembly process is not high, and it is easy to cause system errors; 2) the adaptability of the sensor is low, There are few reserved installation positions for sensors on the ov...
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Method used

The input shaft support 14 is provided with a limit cover plate 141, and the input shaft of the limit cover plate 141 and the RV reducer is respectively provided with a through hole and a limit hole, and the input shaft support frame is movable There is a fixing pin 142 that can pass through the through hole and the limiting hole. The fixing pin 142 is a tapered pin, and the through hole and the limiting hole are both tapered holes. This structure is used to fix the limit shaft, which can be used to measure the hysteresis curve. The fixing method of the input end adopts the taper pin to cooperate with the taper hole on the shaft, which completely prevents the relative torsion and displacement between the two parts to be fixed. The matching of the cylindrical rod hole in the prior art is more stable, the input end can be completely fixed, and the hysteresis curve of the reducer can be measured more accurately.
The input shaft support 14 is provided with two coaxial bearings 143, the input shaft of the RV speed reducer 6 to be tested is sleeved on the inner rings of the two bearings 143, and the inner rings of the two bearings are all fixed on the input shaft on bracket 14. The input shaft of the RV reducer 6 to be tested is installed in two bearing inner rings with a common horizontal axis, which is beneficial to adjust the bearing clearance and realize the coaxiality of the shafts. The input shaft of the RV reducer 6 to be tested is connected with the flat key of the coupling. The use of flat key connections further ensures the stability of the input torque and avoids system errors during the power input process. A transition flange 16 is provi...
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Abstract

The invention relates to a high-precision RV speed reducer comprehensive testing device, which comprises a base, a first sliding platform, a second sliding platform, a first motor, a first torque sensor, a second motor, a second torque sensor, a first angle sensor, an input shaft bracket and an output shaft bracket. Compared with the prior art, the high-precision RV speed reducer comprehensive testing device designs the sliding platform assembly capable of being rapidly disassembled and assembled, so that the assembling and disassembling process of an to-be-tested RV speed reducer is more convenient and faster; the output shaft bracket and the input shaft bracket can be used for adapting to the requirements of sensors with different specifications; the limiting parts of the sliding platforms improve the test precision; the double-measuring-range torque sensors can adapt to measurement of speed reducers of different series models, and can also realize test of transmission precision under light load; an input shaft of the to-be-tested RV speed reducer is installed in two bearing inner rings sharing the same horizontal axis, thereby facilitating the adjustment of a bearing clearance;and the double-reading-head circular grating angle sensors meet the requirement that the transmission precision is tested in a high-speed state.

Application Domain

Technology Topic

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  • High-precision RV speed reducer comprehensive testing device
  • High-precision RV speed reducer comprehensive testing device
  • High-precision RV speed reducer comprehensive testing device

Examples

  • Experimental program(1)
  • Effect test(1)

Example Embodiment

[0045] Example
[0046] The comprehensive test device for high-precision RV reducer in the present invention includes the following parts:
[0047] The base 1 part: the first slide rail 11 and the second slide rail 12 are provided on it. The first sliding platform 2 is set on the first linear slide rail 11 and can be linearly displaced along the first linear slide rail 11; the second sliding platform 3 is provided on the second linear slide rail 12 and can be moved along the second straight line The sliding rail 12 is linearly displaced, and the RV reducer 6 to be tested is arranged between the first sliding platform 2 and the second sliding platform 3. Both ends of the base 1 are respectively provided with a shaft assembly to realize the horizontal position adjustment of the first sliding platform 2 and the second sliding platform 3 respectively. The rods are provided with external threads, which are compatible with the first sliding platform 2 and the second sliding platform. 3 Under the threaded fit, by screwing the handle at the end of the shaft, the horizontal position adjustment of the first sliding platform 2 and the second sliding platform 3 are realized respectively, and the first sliding platform 2 and the The second sliding platform 3 moves to both sides of the base 1, after assembling, the first sliding platform 2 and the second sliding platform 3 are brought together to complete the assembly, and the reverse operation is performed during disassembly. This makes the assembly and disassembly process of the RV reducer 6 to be tested more convenient and faster. The base 1 is provided with a positioning block 13, which can be pushed upward and pressed against the bottom surface of the first sliding platform 2 and/or the second sliding platform 3, so that the first sliding platform 2 and/or the second sliding platform 3 It is limited horizontally.
[0048] Motor part: the first motor 4 is arranged on the first sliding platform 2; the second motor 9 is arranged on the second sliding platform 3.
[0049] Bracket part: the input shaft bracket 14 is set on the first sliding platform 2, and the input shaft of the RV reducer 6 to be tested penetrates the input shaft bracket 14. The output shaft support 15 is set on the base 1, and the output end of the RV reducer 6 to be tested penetrates the output shaft support 15; the output shaft support 15 can be used to meet the needs of sensors of different specifications, and is also conducive to simplifying the assembly process of the sensor. Because the angle sensor set at the output end needs to be replaced immediately according to the item to be tested, the output shaft bracket 15 is set here separately, which helps to provide more installation space and installation positions to meet the needs of sensors of different specifications. Helps simplify the assembly process.
[0050] The input shaft support 14 is provided with a limit cover 141. The limit cover 141 and the input shaft of the RV reducer are respectively provided with a through hole and a limit hole. The input shaft support frame is movably provided with a The fixing pin 142 passes through the through hole and the limiting hole, the fixing pin 142 is a tapered pin, and the through hole and the limiting hole are both tapered holes. This structure is used to fix the limit shaft, which can be used to measure the hysteresis curve. The fixing method of the input end adopts the taper pin to cooperate with the taper hole on the shaft, which completely prevents the relative torsional translocation between the two parts to be fixed. In the prior art, the column-shaped rod hole fit is more stable, the input end can be completely fixed, and the hysteresis curve of the reducer can be measured more accurately.
[0051] Two coaxial bearings 143 are provided in the input shaft support 14. The input shaft of the RV reducer 6 to be tested is sleeved on the inner rings of the two bearings 143, and the inner rings of the two bearings are both fixed on the input shaft support 14. . The input shaft of the RV reducer 6 to be tested is installed in two bearing inner rings with a common horizontal axis, which is beneficial to adjust the bearing clearance and realize the coaxiality of the shaft. The input shaft of the RV reducer to be tested 6 is connected with the flat key of the coupling. The flat key connection further ensures the stability of the input torque and avoids system errors during the power input process. The input shaft of the RV reducer 6 to be tested is provided with a transition flange 16, and the first angle sensor 10 is provided on the transition flange 16. It can be used to meet the needs of sensors of different specifications, and it also helps the sensor to simplify the assembly process.
[0052] Torque sensor part: the first torque sensor 5 is arranged on the first sliding platform 2, one end of which is connected with the output shaft of the first motor 4, and the other end is connected with the input shaft of the RV reducer 6 to be tested; the second torque sensor 7, One end is connected with the output shaft of the RV reducer 6 to be tested, and the other end is connected with the output shaft of the second motor 9. A second reducer 8 is also provided between the second torque sensor 7 and the second motor 9. One end of the second reducer 8 is connected to the second torque sensor 7, and the other end is connected to the output shaft of the second motor 9. The first torque sensor 5 is a shaft-type torque sensor, and the second torque sensor 7 is a dual-range torque sensor. The dual-range torque sensor switches the test range to a small-range gear when the motor test system is performing a small torque test. The advantage of this is to make the test more accurate. The dual-range torque sensor can adapt to the measurement of different series of reducers. It can also test the transmission accuracy under light load. The first motor 4 and the first torque sensor 5, the first torque sensor 5 and the RV reducer to be tested 6, and the RV reducer to be tested 6 and the second reducer 8 are all connected by couplings.
[0053] Angle sensor part: the first angle sensor 10 is arranged on the input shaft of the RV reducer 6 to be tested; the second angle sensor 13 is arranged on the output shaft bracket 15. The first angle sensor 10 is a circular grating angle sensor 101 including two dual reading heads. It can meet the test of transmission accuracy at high speed. The connecting position between the two circular grating angle sensors 101 and the axis is at an angle of 90 degrees.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Classification and recommendation of technical efficacy words

  • Easy assembly and disassembly
  • Easy to assemble

Mahjong machine

Owner:德兴市永达娱乐设备有限公司
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