CN101706313A

CN101706313A - Weighing sensor elastomer

Info

Publication number: CN101706313A
Application number: CN200910194226A
Authority: CN
Inventors: 冯永光
Original assignee: Guangdong Nanfang Weighing Apparatus Factory Co Ltd
Current assignee: Guangdong Nanfang Weighing Apparatus Factory Co Ltd
Priority date: 2009-11-27
Filing date: 2009-11-27
Publication date: 2010-05-12

Abstract

The invention relates to a weighing sensor elastomer comprising a load leading-in part (a), a straining part (b) and a load supporting part (c). The straining part (b) comprises a front straining hole and a back straining hole (1, 2) which are two coaxial isodiametric circular blind holes and have the diameter Phi of 34-36mm; the bottom parts of the front straining hole and the back straining hole (1,2) are elastic sensitive areas (5); the periphery of the front straining hole and the back straining hole (1,2) is provided with a first deformation through hole, a second deformation through hole, a third deformation through hole and a forth deformation through hole (6, 7, 8, 9) which are symmetrically distributed; the central distance between the first deformation through hole and the second deformation through hole (6, 7) is 34-36mm, and the central distance between the first deformation hole and the third deformation hole (6, 8) is 70-72mm; and the cross sections of the central axes of all the deformation through holes are respectively provided with a deformation notch which is communicated with the outside. The weighing sensor elastomer has the advantages of convenient installation, low sensibility on the installation accuracy and high weighing accuracy.

Description

A kind of Weighing sensor elastomer

Technical field

The present invention relates to a kind of Weighing sensor elastomer, belong to the electronic scale technical field.

Technical background

In the industry and commerce field, along with improving constantly of production efficiency, people are more extensive to the application of electronic scale, also more and more higher to the use cost and the accuracy requirement of weighing, the pillar LOAD CELLS is a kind of function element of utilizing the metallic elastic body power to be converted to strain, elastic body then is the core component of this class LOAD CELLS, this column type elastomer is because its compact conformation, geometric configuration is simple, rigidity is bigger, be most widely used, but, mostly there are following shortcomings in the elastic body of existing pillar LOAD CELLS: be exactly that it is very high to the installation accuracy requirement, comprise the installation verticality, corner change degree, the levelness of Up/down base etc. all needs strict tolerance and guarantees; Measuring error is bigger when being subjected to side force load and eccentric load simultaneously, therefore causes its measuring accuracy low.

Summary of the invention

The technical problem to be solved in the present invention is that a kind of Weighing sensor elastomer that susceptibility is low, weighing precision is high of being convenient to install and installation accuracy is comprised the levelness of verticality, corner change degree, Up/down base is provided.

This addresses the above problem, a kind of Weighing sensor elastomer of the present invention, its main body is a rectangular structure, including load imports partly, strain part and load support are partly, before strain partly includes, back strain bore, a left side, right flexural deformation side plate and elastic strain sensitizing range, before described, before back strain bore places strain partly, the middle part of back, be two coaxial isometrical circular blind holes, diameter is Φ 34～36mm, the bottom of strain bore is the elasticity sensitizing range, preceding, be provided with before four around the back strain bore, back strain bore axis is that present at the center, down, a left side, first of right symmetrical distribution, second, the 3rd, the 4th distortion through hole, first, reach the 3rd between the second distortion through hole, centre distance between the 4th distortion through hole is 34～36mm, first, reach second between the 3rd distortion through hole, centre distance between the 4th distortion through hole is 70～72mm; Each is out of shape first, second, third, fourth deformation notches that through hole is respectively equipped with and is communicated with on the xsect of axle therein outward; Between the first, the 3rd deformation notches in forward and backward strain bore left side, have respectively and the left flexural deformation side plate that load imports partly and load support partly is connected, between the second, the 4th deformation notches on forward and backward strain bore right side, have respectively and load imports partly and load support partly is connected right flexural deformation side plate.

On described elasticity sensitizing range, be provided with the through hole of the forward and backward strain bore of conducting.

Before described strain bore or strain bore side, back be provided with outside the cable through-hole that is communicated with.

It is stacked cylindrical structure that described load imports top partly, and its end face is a sphere, and the radius of this sphere is not less than elastomeric height.

Described load support bottom partly is two to save stacked cylindrical structure up and down, forms a bulge loop on the side face of last pitch circle cylinder lower end, and have stopper slot on cylindrical side face; Following pitch circle cylinder bottom surface is a sphere, and the radius of this sphere is not less than elastomeric height.

Adopt a kind of Weighing sensor elastomer of the present invention, have the advantage that susceptibility is low, weighing precision is high of being convenient to install and installation accuracy is comprised the levelness of verticality, corner change degree, Up/down base.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 looks partial sectional view for a left side of the present invention.

Fig. 3 is a stereographic map of the present invention.

Embodiment

As Fig. 1～shown in Figure 3, a kind of Weighing sensor elastomer of the present invention, its main body is a rectangular structure, include load and import partly a, strain partly b and load support part c, strain partly b includes forward and backward strain bore 1,2, left and right flexural deformation side plate 3,4, elastic strain sensitizing range 5, described forward and backward strain bore 1,2 places the middle part of forward and backward of strain part b, is two coaxial isometrical circular blind holes, and diameter is Φ 35mm; The bottom of forward and backward strain bore 1,2 is elasticity sensitizing range 5, being provided with four around forward and backward strain bore 1,2 is that the center goes to upper and lower, first, second, third, fourth distortion through hole 6,7,8,9 of left and right symmetrical distribution with forward and backward strain bore 1,2 axis, the centre distance that 6,7 of first, second distortion through holes and the 3rd, the 4th distortion through hole are 8,9 is 35mm, and the centre distance that 6,8 of the first, the 3rd distortion through holes and the second, the 4th distortion through hole are 7,9 is 71mm; On the described xsect that respectively is out of shape the through hole central shaft, be respectively equipped with outside first, second, third, fourth deformation notches 10,11,12,13 that is communicated with; Between the first, the 3rd deformation notches 10,12 in forward and backward strain bore 1,2 left sides, have respectively with load and import the partly left flexural deformation side plate 3 that is connected of c of partly a and load support, between the second, the 4th deformation notches 11,13 on forward and backward strain bore 1,2 right sides, have respectively with load and import the right flexural deformation side plate 4 that a partly is connected with load support part c.

On described elasticity sensitizing range 5, be provided with the through hole 14 of the forward and backward strain bore of conducting;

Before described strain bore 1 or strain bore 2 sides, back be provided with outside the cable through-hole 15 that is communicated with.

The top that described load imports part a is stacked cylindrical structure, and its end face 16 is a sphere, and the radius of this sphere is not less than elastomeric height.

The described load support partly bottom of c is two to save stacked cylindrical structure up and down, forms a bulge loop 18 on the side face of last pitch circle cylinder lower end, and have stopper slot 19 on cylindrical side face; The bottom surface 17 of following pitch circle cylinder is a sphere, and the radius of this sphere is not less than elastomeric height.

Claims

1. Weighing sensor elastomer, include load and import partly (a), strain partly (b) and load support part (c), it is characterized in that: described strain partly (b) includes forward and backward strain bore (1,2), left and right flexural deformation side plate (3,4) and elastic strain sensitizing range (5), described forward and backward strain bore (1,2) places the middle part of forward and backward of strain part (b), be two coaxial isometrical circular blind holes, diameter is Φ 34～36mm; The bottom of forward and backward strain bore (1,2) is elasticity sensitizing range (5), being provided with four around forward and backward strain bore (1,2) is that the center goes to upper and lower, first, second, third, fourth distortion through hole (6,7,8,9) of left and right symmetrical distribution with forward and backward strain bore (1,2) axis, the centre distance that reaches between the 3rd, the 4th distortion through hole (8,9) between first, second distortion through hole (6,7) is 34～36mm, and the centre distance that reaches between the second, the 4th distortion through hole (7,9) between the first, the 3rd distortion through hole (6,8) is 70～72mm; On the described xsect that respectively is out of shape the through hole central shaft, be respectively equipped with outside first, second, third, fourth deformation notches (10,11,12,13) that is communicated with; Between the first, the 3rd deformation notches (10,12) in forward and backward strain bore (1,2) left side, have respectively with load and import partly (c) left flexural deformation side plate (3) of being connected of partly (a) and load support, between the second, the 4th deformation notches (11,13) on forward and backward strain bore (1,2) right side, have respectively and import the right flexural deformation side plate (4) that part (a) is connected with load support part (c) with load.

2. a kind of Weighing sensor elastomer according to claim 1 is characterized in that: the top that described load imports part (a) is stacked cylindrical structure, and its end face (16) is a sphere, and the radius of this sphere is not less than elastomeric height.

3. a kind of Weighing sensor elastomer according to claim 1, it is characterized in that: the described load support partly bottom of (c) is two to save stacked cylindrical structure up and down, on the side face of the lower end of last pitch circle cylinder, form a bulge loop (18), and on cylindrical side face, have stopper slot (19); Following pitch circle cylinder bottom surface (17) is a sphere, and the radius of this sphere is not less than elastomeric height.

4. a kind of Weighing sensor elastomer according to claim 1 is characterized in that: the through hole (14) that is provided with the forward and backward strain bore of conducting on described elasticity sensitizing range (5).

5. a kind of Weighing sensor elastomer according to claim 1 is characterized in that: strain bore before described (1) or strain bore (2) side, back be provided with outside the cable through-hole (15) that is communicated with.