Device for measuring friction torque of curved groove ball bearing

A technology of curved groove ball bearings and friction torque, applied in measuring devices, force/torque/power measuring instruments, instruments, etc., can solve problems affecting measurement accuracy and achieve the effects of improving measurement accuracy, convenient adjustment, and simple structure

Pending Publication Date: 2018-01-12
NORTHWEST A & F UNIV
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AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the tension rope swings up and down in the process of measuring the friction torque of the existing curved ball bearing, which affects the measurement accuracy, the present invention uses the original curved groove ball bearing outer ring curved groove processing template as the basic part, and cooperates with

Method used

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  • Device for measuring friction torque of curved groove ball bearing
  • Device for measuring friction torque of curved groove ball bearing
  • Device for measuring friction torque of curved groove ball bearing

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Embodiment Construction

[0014] specific implementation

[0015] Specific embodiments are given below in conjunction with the accompanying drawings.

[0016] A specific embodiment of the present invention is to make a curved groove ball bearing friction torque measuring device with a total length of 850mm, and use it to measure the friction torque of the curved groove ball bearing, specifically as follows figure 1 , figure 2 , image 3 and Figure 4 shown. After the motor reducer 12 outputs power, it is further decelerated by the pinion 12 to reach the lower speed required for friction torque measurement; the base 2 is fixed on the frame 1, and the number of steel balls on a circumference of the base 2 is equal to that of the tested bearing 10 The spherical socket 15, the rotating part 4 and the three-jaw chuck are fixed together, and an "S"-shaped circle with the same amplitude and pitch as the outer ring of the bearing 10 under test is machined on the circumference corresponding to the rotating...

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Abstract

The invention discloses a device for measuring friction torque of a curved groove ball bearing and belongs to the field of mechanical engineering. The device is composed of a motor reducer, gears, a rotor, a base, a chuck, a loading device, and a tension sensor. In order to solve the problem that measuring precision is affected since a pull rope in an existing device for measuring friction torqueof a curved groove ball bearing swings up and down during measuring, a template for processing a curved groove in the outer circle of the original curved groove ball bearing or a curved groove ball bearing of the same type is used as the rotor for use with a phase adjusting mechanism, vertical swing of the curved groove in the outer circle is counteracted by the vertical swing of a curved groove in the template during rotation, the pull rope is kept not swinging up and down during the testing of the friction torque of the curved groove ball bearing, and measuring precision is improved. The device disclosed herein has the advantages that by using the rotor having the same swing amplitude and period as a curved groove ball bearing, vertical swing of the curved groove ball bearing can be eliminated; loading is easy, and adjusting is convenient; the device is simple in structure and low in cost.

Description

technical field [0001] The invention relates to a bearing performance measuring device, belonging to the technical field of mechanical engineering, in particular to a friction torque measuring device of a curved groove ball bearing. Background technique [0002] Rolling bearings are important mechanical basic parts, and are important supporting and rotating parts that transmit and bear loads. It has the advantages of low friction, easy starting, simple lubrication and easy replacement. However, general bearings are used to position shaft parts so that they can rotate flexibly, but cannot produce axial displacement. For the mechanism that needs to be able to perform axial displacement while rotating, such as the movement of squeezing and rubbing rollers (such as peeling machine, peeling machine), the use of universal bearings will make the mechanism very complicated. [0003] Patent No. 201620693072.3 discloses a socket and curved groove ball bearing structure. It changes ...

Claims

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Application Information

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IPC IPC(8): G01L5/00
Inventor 郭康权胡耀华郭贵生
Owner NORTHWEST A & F UNIV
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