CN214010601U

CN214010601U - Supporting force sensor

Info

Publication number: CN214010601U
Application number: CN202120360318.6U
Authority: CN
Inventors: 陈荡; 马训; 裴雷雷; 陈虹; 陈海燕
Original assignee: Bengbu Sunmoon Instrument Institute Co ltd
Current assignee: Bengbu Sunmoon Instrument Institute Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-08-20
Anticipated expiration: 2031-02-07

Abstract

The supporting force sensor is provided with a strain main body and a supporting seat, wherein a strain sheet is pasted on the inner wall of a cavity in the strain main body, a wire holder is fixed on the outer side of the strain main body and connected with the wire holder, a pit is formed in the supporting seat, the surface of the pit is a spherical surface, a pressure-bearing head arranged at the lower part of the strain main body is spherical, the pressure-bearing head is supported by the surface of the pit, and the spherical surface matching is formed between the pressure-bearing head and the surface of the pit. The upper end of the strain main body is connected with the force application end of the object to be measured, the supporting seat is supported by the supporting object, and the supporting force borne by the object to be measured during working can be measured.

Description

Supporting force sensor

Technical Field

The utility model relates to a weighing sensor, specifically speaking are supporting force sensor.

Background

At present, the sensor used for detecting the supporting force in the engineering machinery is basically a conventional weighing sensor. For example, in the detection of the supporting force of a crane supporting leg, a measure is taken in which a load cell is installed between the lower end of the supporting leg thereof and the supporting plate. The basic structure of the existing weighing sensor is formed by connecting a columnar strain main body with a supporting seat, and when the weighing sensor is used for detecting the supporting force of engineering machinery, the defects are as follows: when the action line of the measured supporting force deviates from the axis of the strain main body, a lateral force can be generated, and further measurement errors are brought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a supporting force sensor, this supporting force sensor have the main part of meeting an emergency can oneself the aligning, and then eliminate the yawing force, ensure measurement accuracy.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the supporting force sensor is provided with a strain main body and a supporting seat, wherein a strain sheet is pasted on the inner wall of a cavity in the strain main body, a wire holder is fixed on the outer side of the strain main body and connected with the wire holder, a pit is formed in the supporting seat, the surface of the pit is a spherical surface, a pressure-bearing head arranged at the lower part of the strain main body is spherical, the pressure-bearing head is supported by the surface of the pit, and the spherical surface matching is formed between the pressure-bearing head and the surface of the pit.

The upper end of the strain main body is connected with the force application end of the measured object, the supporting seat is supported by the support, and the supporting force borne by the measured object during working can be measured.

The utility model has the advantages of simple and reasonable structure, the stable performance is reliable, and its anti unbalance loading ability is strong, and measurement accuracy is high, and real-time accuracy is strong.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a sectional view B-B of fig. 2.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

See fig. 1 and 2

The utility model provides a supporting force sensor has main part 3 and bearing 1 of meeting an emergency, pastes foil gage 6 on the cavity inner wall that has in the main part 3 of meeting an emergency, is fixed with connection terminal 5 on the main part 3 outside of meeting an emergency, and foil gage 6 meets with connection terminal 5. The supporting seat 1 is provided with a pit 1a, the surface of the pit 1a is a spherical surface, the lower part of the strain body 3 is provided with a pressure bearing head 3a which is spherical, the pressure bearing head 3a is supported by the surface of the pit 1a, and the surface of the pressure bearing head 3a and the surface of the pit 1a are in spherical matching.

See fig. 1, 2, 3

In this embodiment, a pair of baffles 2 are connected to the upper end of the supporting base 1 through bolts 7, semicircular notches 2a are formed in one sides of the two baffles 2, and the notches 2a of the two baffles 2 are butted to surround the pressure-bearing head 3 a. The two baffles 2 can reliably limit the pressure bearing head 3 a.

See fig. 1, 3

In this embodiment, a connector 4 is connected to the upper end of the strain body 3, and the upper end of the connector 4 is a cylinder with more than two steps. When the supporting force sensor is used for measuring the supporting force of the crane supporting leg, the upper end part of the connector 4 is inserted into the lower port of the crane supporting leg, the supporting seat 1 is seated on a bottom plate, and the bottom plate is supported by the ground. The upper end of the connector 4 is cylindrical with more than two steps, and is suitable for being inserted into lower ports of supporting legs with different calibers.

Claims

1. Support force transducer, it has main part and bearing of meeting an emergency, pastes the foil gage on the cavity inner wall that has in the main part of meeting an emergency, is fixed with the connection terminal on the main part outside of meeting an emergency, and the foil gage meets its characterized in that with the connection terminal: the supporting seat is provided with a pit, the surface of the pit is a spherical surface, the lower part of the strain body is provided with a pressure-bearing head which is spherical, the pressure-bearing head is supported by the surface of the pit, and the spherical surface is matched between the pressure-bearing head and the surface of the pit.

2. The supporting force sensor according to claim 1, wherein: the upper end of the supporting seat is connected with a pair of baffles, one side of each baffle is provided with a semicircular notch, and the notches of the two baffles are butted to surround the bearing head.

3. The supporting force sensor according to claim 1, wherein: the upper end of the strain main body is connected with a connector, and the upper end part of the connector is in a cylindrical shape with more than two steps.