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Gear positioning device, gear measuring device and measuring method

A technology of gear measurement and positioning device, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc.

Active Publication Date: 2021-12-07
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art. In the first aspect, a gear positioning device is provided to solve the problem of how to position and install gears and how to detect odd-numbered gear teeth and even-numbered gear teeth without changing the positioning fixture. technical problem

Method used

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  • Gear positioning device, gear measuring device and measuring method
  • Gear positioning device, gear measuring device and measuring method
  • Gear positioning device, gear measuring device and measuring method

Examples

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Embodiment 1

[0050] The invention provides a gear positioning device, such as Figure 1 to Figure 7 As shown, it includes a positioning shaft 2, a positioning column 3 and a locking pin 4. The shaft hole of the gear to be tested 1 is sleeved on the positioning shaft 2, so that the gear to be tested 1 is fixed on the plane. According to the size of the shaft hole of the gear to be tested 1, a bush 6 with a suitable size can be selected to be sleeved on the positioning shaft 2, so that the gear to be tested 1 is firmly fixed. A hemispherical alignment ball 21 is arranged on the top of the positioning shaft 2, and the center of the alignment ball 21 is located on the axis of the positioning shaft 2, which is convenient for determining the measurement center of the tooth to be measured.

[0051] Such as Figure 1 to Figure 7As shown, the positioning column 3 is arranged on one side of the gear 1 to be tested, and the positioning column 3 is provided with a locking groove 31 , and the locking...

Embodiment 2

[0059] The present invention also provides a gear measuring device, such as Figure 3 to Figure 5 As shown, it includes a surface roughness profiler and the above-mentioned gear positioning device. The surface roughness profiler is provided with a workbench and a measuring needle 9 . The gear positioning device is installed on the workbench through the connecting hole 81 on the base 8, and the measuring pin 9 on the surface roughness profiler measures the gear 1 to be tested.

[0060] The stylus 9 is in contact with the teeth of the gear 1 to be tested, and transmits the contact information to the sensing parts on the main body of the surface roughness profiler. During the measurement process, the stylus 9 slides at a constant speed relative to the surface of the tooth of the gear 1 to be measured, so as to feel the geometric changes of the surface to be measured. The host computer of the surface roughness profiler converts the information sampled by the stylus 9 into electr...

Embodiment 3

[0063] The present invention also provides a gear measurement method, such as Figure 1 to Figure 10 As shown, use the gear measuring device described above. First, determine the transmission direction of the worktable of the surface roughness profiler as the Y direction, determine the axial direction of the positioning axis 2 as the Z direction, and determine the direction perpendicular to the Y direction and the Z direction as the X direction, that is, establish a three-dimensional structure about XYZ spatial coordinate system.

[0064] Then, the gear 1 to be tested is positioned and installed on the positioning shaft 2 . At this time, the gear 1 to be tested can be fixed by selecting bushes 6 , gaskets 7 , and pressing pieces with suitable quantities and sizes according to the specification of the gear to be tested 1 . When the number of gear teeth of the gear to be tested 1 is odd, the locking pin 4 is rotated, and the gear tenon 41 is inserted into the tooth groove of t...

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Abstract

The invention discloses a gear positioning device, a gear measuring device and a measuring method, relates to the technical field of detection of motor vehicle gears, and solves the technology of how to position and install the gear and how to detect the odd-numbered gear teeth and the even-numbered gear teeth without changing the positioning fixture question. It includes a positioning shaft for fixing the gear to be tested, and the positioning shaft is provided with an alignment ball; one side of the gear to be tested is provided with a positioning column; Gear teeth are arranged on the tenon. The invention fixes the position of the gear to be measured by the positioning shaft, and then prevents the rotation of the gear to be measured by the locking pin on the positioning column, which solves the problem of the positioning and installation of the gear to be measured. When the number of teeth of the gear to be tested is an odd number, the gear to be tested can be locked by inserting the tenon of the gear teeth into the tooth slot; Lock the gear to be tested to meet the detection requirements of odd and even teeth.

Description

technical field [0001] The invention relates to the technical field of detection of motor vehicle gears, in particular to a gear positioning device, a gear measuring device and a measuring method. Background technique [0002] From the perspective of the structure of electric vehicles, the operating efficiency of the motor is particularly important, and the design of the multi-speed transmission is an important factor to ensure the operating efficiency of the motor. The combination of transmission ratio and shift strategy of multi-speed transmission can greatly improve the motor efficiency of electric vehicles, so as to achieve many advantages such as high operation, long mileage, low loss, and low waste. [0003] The synchronizer is a complex and key part of the transmission, the tooth sleeve and the coupling tooth are the complex and key parts of the synchronizer, and the reverse cone and plum angle technology are the complex and key process procedures of the gear sleeve. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/021G01B21/20G01B21/30
CPCG01B21/20G01B21/30G01M13/021
Inventor 齐士举余秋石聂少文严军王恒
Owner DONGFENG MOTOR CORP HUBEI
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