CN216349058U

CN216349058U - Flat plate type weighing sensor elastomer

Info

Publication number: CN216349058U
Application number: CN202122887168.7U
Authority: CN
Inventors: 刘瑞; 刘俊
Original assignee: Kunshan Ante Metering Equipment Co ltd
Current assignee: Kunshan Ante Metering Equipment Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-19
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to a flat plate type weighing sensor elastomer which comprises an elastomer body, wherein the elastomer body comprises a middle part beam and two edge part beams, the two edge part beams are symmetrically arranged on the middle part beam respectively, the middle part beam and the two edge part beams form a composite cantilever structure, the edge part beams are provided with strain areas, and the strain areas are provided with strain gauges. The utility model improves the stress structure of the weighing sensor, improves the space utilization efficiency under the same measuring range, and can obviously improve the applicability of the cantilever beam type weighing sensor in a weighing instrument with space limitation.

Description

Flat plate type weighing sensor elastomer

Technical Field

The utility model relates to the technical field of sensor stress structures, in particular to a flat plate type weighing sensor elastomer.

Background

The electronic weighing apparatus consists of a loader, a weighing sensor and a display system, and has the basic working principle that a weighed object applies pressure to the weighing sensor through the loader, an elastic body of the weighing sensor deforms due to stress, a resistance strain gauge is used for converting the deformation degree into a digital signal which is convenient to process and outputs the digital signal to CUP operation, and the digital signal is finally converted into a digital symbol which visually displays the mass of the weighed object on a display through analysis. The common electronic weighing instrument resistance strain gauge type weighing sensor elastic body is of a structural form called as a cantilever beam type weighing sensor, the elastic body of the sensor is mostly a strip-shaped square beam, one end of the elastic body is fixed, the other end of the elastic body bears the weight to form a cantilever beam stress structure, and therefore the elastic body is called as the cantilever type weighing sensor. The sensitivity of the resistance strain gauge for sensing the deformation of the measured object is limited, which requires that the elastic body of the weighing sensor generates recognizable deformation in the design range, and for the elastic body of the cantilever beam structure, the necessary condition for generating deformation is to apply enough bending moment, namely the gravity of the bearing end and the distance from the gravity action point to the fixed end. Under the condition of known gravity, the longer the arm of force is, the more beneficial the deformation is, the longer the elastic body is, and the elastic body needs to be long enough and have enough strength at the fixed end to resist the moment, so as to ensure the structural stability of the weighing apparatus. The weighing apparatus is used as a universal device, is durable, small and flexible and is a prerequisite for design, so that the contradiction between engineering requirements and applicability is generated, the contradiction cannot be completely eliminated, and the utility model provides a new solution for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a flat plate type weighing sensor elastomer.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the flat plate type weighing sensor elastomer comprises an elastomer body, wherein the elastomer body comprises a middle part beam and two edge part beams, the two edge part beams are symmetrically arranged on the middle part beam, the middle part beam and the two edge part beams form a composite cantilever structure, a strain area is arranged on the edge part beam, and a strain gauge is arranged on the strain area.

In a further preferred embodiment, the elastomer is a plate elastomer.

In a further preferred embodiment, the elastic body is provided with a fixing hole.

In a further preferred mode, the fixing holes are provided in four numbers, and are provided at four corners of the elastic body, respectively.

(III) advantageous effects

Compared with the prior art, the utility model provides a flat plate type weighing sensor elastomer which has the following beneficial effects:

the utility model improves the stress structure of the weighing sensor, improves the space utilization efficiency under the same measuring range, can obviously improve the applicability of the cantilever beam type weighing sensor in a weighing apparatus with space limitation, changes the stress of the fixed end of the elastic body from bending to vertical compression by changing the mode of forming the moment on the elastic body, improves the stress environment, and has smaller occupied space and more stable structure under the condition of meeting the same measuring range.

Drawings

FIG. 1 is a perspective view of a preferred overall structure of a flat plate type load cell elastomer according to the present invention;

FIG. 2 is a top sectional view of a preferred integral structure of a flat plate type weighing sensor elastomer in the utility model.

In the figure: 1. an elastomer; 2. a middle section beam; 3. an edge portion beam; 4. a strained region; 5. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-2, the flat-plate type weighing sensor elastic body comprises a device body, wherein the device body comprises an elastic body 1, the elastic body 1 comprises a middle part beam 2 and two edge part beams 3, the two edge part beams 3 are respectively and symmetrically arranged on the middle part beam 2, the middle part beam 2 and the two edge part beams 3 form a composite cantilever structure, a strain area 4 is arranged on the edge part beam 3, and a strain gauge is arranged on the strain area 4.

In this embodiment, the elastic body 1 is a flat plate type elastic body. So that the elastic body 1 can be used more preferably.

In this embodiment, the elastic body 1 is provided with a fixing hole 5. The elastic body 1 is connected with an external base through a fixing hole and a bolt.

In the present embodiment, the fixing holes 5 are four and are respectively disposed at four corners of the elastic body 1. It is provided in four, so that the support of the elastic body 1 is more firm.

Example two:

in conclusion, when the device is used, the plane area of the flat plate type elastic body 1 is mechanically divided, the middle part beam 2 and the edge part beam 3 form an axial composite cantilever structure, when the middle part beam 2 bears gravity, the gravity is transmitted to the fixed end through the supporting point and the edge part beams 3 at two sides, the edge part beam 3 bears torque to generate deformation, a strain area 4 is formed, a strain sheet is arranged on the strain area 4 to sense the deformation, the strain sheet is converted into a digital signal, and the digital signal is sent to the central control CPU, so that weighing is completed. This design characteristics is through the mode that forms moment on the change elastomer 1, changes the atress of elastomer 1 stiff end from the flexural bearing into perpendicular pressurized, has improved the atress environment, and under satisfying the same range condition, the space that plate-type weighing sensor elastomer took is littleer, and the structure is more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The flat plate type weighing sensor elastomer comprises an elastomer body (1), wherein the elastomer body (1) comprises a middle part beam (2) and two edge part beams (3), the two edge part beams (3) are symmetrically arranged on the middle part beam (2), the middle part beam ()2 and the two edge part beams (3) form a composite cantilever structure, a strain area (4) is arranged on the edge part beam (3), and a strain gauge is arranged on the strain area (4).

2. The flat plate type load cell elastomer according to claim 1, wherein: the elastomer (1) is a flat-plate elastomer.

3. The flat plate type load cell elastomer according to claim 1, wherein: the elastic body (1) is provided with a fixing hole (5).

4. The flat plate type load cell elastomer according to claim 3, wherein: the number of the fixing holes (5) is four, and the fixing holes are respectively arranged at four corners of the elastic body (1).