Novel tension and compression force measuring sensor for shear beam
A load cell and shear beam technology, which is applied in the field of sensors, can solve the problems of low precision of the load cell, and achieve the effects of low economic cost, low overall height, and small installation space
Pending Publication Date: 2019-12-10
深圳市鑫精诚科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a novel shear beam tension and compression load cell, aiming to solve the problem of low precision of the load cell in the prior art
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[0012] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0013] In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. Construction and operation, so the words describing the positional relationship in the drawings are only for illustrative...
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The invention relates to the technical field of sensors, and discloses a novel tension and compression force measuring sensor for a shear beam. The sensor comprises an upper flange plate, a lower flange plate, a shear beam, an upper U-shaped groove, a lower U-shaped groove, an upper compression direction overload protection groove, a lower compression direction overload protection groove, a sleeve, a wire pressing nut, a cable and a Wheatstone bridge used for measuring stress changes. The cable is connected with an external power supply so that power is supplied to the Wheatstone bridge. U isa supply voltage, when the upper flange plate and the lower flange plate are stressed, the resistance of a resistance strain gauge R1 and the resistance of a resistance strain gauge R3 increase, the resistance of a resistance strain gauge R2 and the resistance of a resistance strain gauge R4 decrease, the bridge generates a voltage difference and generates an output signal voltage U0, the stress change condition is calculated according to the output signal voltage U0, and the stress measurement precision is high. The upper flange plate, the lower flange plate and the shear beam are parallel and perpendicular to one another, and the overload protection groove and the U-shaped groove between the upper flange plate and the lower flange plate are machined through linear cutting, so that the sensor is low in overall height, simple and compact in structure and convenient to assemble and disassemble.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a novel shear beam tension and compression force sensor. Background technique [0002] Bearing press machine is a kind of small hydraulic machine tool equipment, which is used for press assembly of shafts and bushing parts, as well as pressing some not very fine powder and plastic products, etc. The bearing press machine is mainly suitable for bearings, washing machines, electrical appliances, automobiles , motors and other industries of flow assembly. With the increasing competition in the market environment, product competition is becoming more and more fierce. It is necessary to improve the assembly efficiency of bearings and shafts and reduce costs. The existing bearing press machine cannot control the size of the press force, and the press force is too large. Small shafts, bearings, shaft sleeves and other parts are deformed or directly damaged, and the pressing force is to...
Claims
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IPC IPC(8): G01L1/22
CPCG01L1/2262G01L1/2218
Inventor 吴神剑孙建龙吴美贞
Owner 深圳市鑫精诚科技有限公司