A measuring unit for measuring the diameter of a slewing bearing raceway
A technology for measuring unit and raceway diameter, applied in electromagnetic measuring devices, electrical/magnetic diameter measurement, etc., can solve the problems of high processing cost of permanent magnets and difficulty in finding manufacturers, and achieve low cost, cost reduction, and flexible structure change. Effect
Active Publication Date: 2017-06-30
SOUTHEAST UNIV
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Problems solved by technology
The problem with this design is that because different types and sizes of slewing bearing raceways have different shapes, the corresponding permanent magnets of different shapes and sizes are expensive to process and difficult to find in actual manufacturing when the batch size is not large. manufacturer
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Embodiment Construction
[0016] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0017] like Figure 1 to Figure 3 As shown, a measuring unit for measuring the diameter of a slewing bearing raceway according to the present invention, the measuring unit 1 includes a body 11, two positioning spheres 12 located at both ends of the body 11, and a fixing mechanism 13, the fixing mechanism 13 is connected to the body 11 on. The fixing mechanism 13 includes a magnetic yoke 131 made of magnetically permeable material, a permanent magnet 132 , a knob mechanism 133 and a sleeve 134 . The knob mechanism 133 is fixedly connected to the body 11, the top of the sleeve 134 is fixedly connected to the knob mechanism 133, the yoke 131 is fixedly connected to the bottom end of the sleeve 134, and the bottom cross-sectional shape of the yoke 131 is consistent with the measured raceway 2 The cross-sectional shapes are the same or similar....
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The invention discloses a measuring unit for measuring the diameter of a slewing support raceway, which comprises a body, two positioning spheres, and a fixing mechanism connected to the body; the fixing mechanism includes a magnetic yoke made of a magnetically conductive material, a permanent Magnet, knob mechanism and sleeve; the knob mechanism is fixedly connected to the body; the top of the sleeve is fixedly connected to the knob mechanism, and the yoke is fixedly connected to the bottom end of the sleeve, and the bottom cross-sectional shape of the yoke is consistent with the tested raceway The cross-sectional shapes are the same or similar; the permanent magnet is located in the sleeve, and the permanent magnet is fixedly connected to the knob mechanism; one magnetic pole of the permanent magnet is opposite to the yoke. The measuring unit for measuring the diameter of the raceway of the slewing ring, the permanent magnet in the fixing mechanism does not need to use a permanent magnet with a complex shape that matches or is close to the shape of the raceway to be measured, but only needs to use a common commercially available permanent magnet with a simple shape. Thus avoiding the processing difficulties of permanent magnets with complex shapes.
Description
technical field [0001] The invention belongs to the technical field of length measurement of mechanical parts, and in particular relates to a measuring unit for measuring the diameter of a raceway of a slewing bearing. Background technique [0002] Chinese patent application CN200910035222.6 discloses a method for measuring the raceway diameter of a slewing bearing (or a large rolling bearing). The measuring unit used in the method uses a fixing mechanism containing a permanent magnet to fix itself on the slewing bearing to be tested. In the embodiment The shape of the permanent magnet is designed to match or be close to the shape of the tested raceway to improve the efficiency of the magnet. The problem with this design is that because different types and sizes of slewing bearing raceways have different shapes, the corresponding permanent magnets of different shapes and sizes are expensive to process and difficult to find in actual manufacturing when the batch size is not l...
Claims
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IPC IPC(8): G01B7/12
Inventor 李彬
Owner SOUTHEAST UNIV