CN215639881U

CN215639881U - Torsion sensor

Info

Publication number: CN215639881U
Application number: CN202122211527.7U
Authority: CN
Inventors: 李科达
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-25
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a torque sensor, and relates to the technical field of torque sensors. Including outer loop, inner ring and oblique monospar, the inner ring is located the inside of outer loop, be provided with quantity between outer loop and the inner ring and be two oblique monospar, two oblique monospar cooperation inner ring combination is the zigzag setting, the both sides of oblique monospar all are provided with resistance strain gauge, the thickness of outer loop and inner ring all is greater than the thickness of oblique monospar. This torque sensor, through setting up outer loop, inner ring, oblique monospar and resistance strain gauge, compare in the tensile mode of measuring torsion of four straight monospar of conventionality, the setting of two oblique monospar of the device for two oblique monospar are tensile or compression take place the deformation, all can obtain torsion data through the resistance strain gauge, measuring method is changeable, it is more nimble to use, simplify the structure simultaneously, reduce the technology degree of difficulty and manufacturing cost, guarantee measurement accuracy, higher commonality has, accord with economic benefits, and application prospect is wide.

Description

Torsion sensor

Technical Field

The utility model relates to the technical field of torque sensors, in particular to a torque sensor.

Background

The static torque sensor is an instrument which converts the strain generated by the torque moment into an electric signal in a linear relation with the strain according to the resistance strain principle, and the product has the advantages of mature manufacturing process, complete variety, wide measuring range, high precision and stable and reliable performance.

The conventional torque sensor measures torque mostly through stretching of four internal straight single beams, and is complex in structure, high in process difficulty, low in measurement precision and incapable of meeting use requirements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a torsion sensor which has the advantages of simplifying the structure, reducing the process difficulty and ensuring the measurement precision, and solves the problems that most of conventional torsion sensors measure torsion by stretching four straight single beams inside, the structure is complex, the process difficulty is high and the measurement precision is low.

In order to realize the purposes of simplifying the structure, reducing the process difficulty and ensuring the measurement precision, the utility model provides the following technical scheme: the utility model provides a torque sensor, includes outer loop, inner ring and oblique monospar, the inner ring is located the inside of outer loop, be provided with quantity between outer loop and the inner ring and be two oblique monospar, two oblique monospar cooperation inner ring combination is the setting of zigzag, the both sides of oblique monospar all are provided with resistance strain gauge.

As a preferable technical scheme of the utility model, the thicknesses of the outer ring and the inner ring are both larger than the thickness of the oblique single beam.

As a preferable technical scheme of the utility model, the distance between the outer ring and the inner ring is larger than the thickness of the oblique single beam.

As a preferable technical scheme of the utility model, the top parts of the outer ring and the inner ring are both provided with a first fixing hole.

As a preferred technical scheme of the utility model, the bottom parts of the outer ring and the inner ring are both provided with a second fixing hole communicated with the first fixing hole.

As a preferable technical solution of the present invention, the diameter of the second fixing hole is larger than that of the first fixing hole.

Compared with the prior art, the utility model provides a torque sensor, which has the following beneficial effects:

this torque sensor, through setting up outer loop, inner ring, oblique monospar and resistance strain gauge, compare in the tensile mode of measuring torsion of four straight monospar of conventionality, the setting of two oblique monospar of the device for two oblique monospar are tensile or compression take place the deformation, all can obtain torsion data through the resistance strain gauge, measuring method is changeable, it is more nimble to use, simplify the structure simultaneously, reduce the technology degree of difficulty and manufacturing cost, guarantee measurement accuracy, higher commonality has, accord with economic benefits, and application prospect is wide.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a bottom view of the structure of the present invention.

In the figure: 1. an outer ring; 2. an inner ring; 3. an oblique single beam; 4. a resistance strain gauge; 5. a first fixing hole; 6. and a second fixing hole.

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.

Referring to fig. 1-2, the utility model discloses a torque sensor, which comprises an outer ring 1, an inner ring 2 and two oblique single beams 3, wherein the inner ring 2 is positioned inside the outer ring 1, the two oblique single beams 3 are arranged between the outer ring 1 and the inner ring 2, the two oblique single beams 3 are combined with the inner ring 2 to form a zigzag arrangement, resistance strain gauges 4 are arranged on two sides of each oblique single beam 3, and the oblique single beams 3 are combined with the resistance strain gauges 4 to form a strain bridge, so that the resistance strain gauges 4 detect the tensile or compressive state of the oblique single beams 3.

Specifically, the thicknesses of the outer ring 1 and the inner ring 2 are both greater than the thickness of the oblique single beam 3, the distance between the outer ring 1 and the inner ring 2 is greater than the thickness of the oblique single beam 3, and the thicknesses of the inner ring 2 and the outer ring 1 are both greater than the thickness of the oblique single beam 3, so that the structural strength of the inner ring 2 and the outer ring 1 is ensured.

Specifically, a first fixing hole 5 is formed in the tops of the outer ring 1 and the inner ring 2, a second fixing hole 6 communicated with the first fixing hole 5 is formed in the bottoms of the outer ring 1 and the inner ring 2, the diameter of the second fixing hole 6 is larger than that of the first fixing hole 5, the inner ring 2 and the outer ring 1 can be installed with equipment needing to use the device through the first fixing hole 5 and the second fixing hole 6 in a matched mode through bolts, meanwhile, the first fixing hole 5 and the second fixing hole 6 can be used as stress holes, stress generated when the first fixing hole 5 and the second fixing hole 6 are used is released, and structural stability is guaranteed.

When the inner ring 2 or the outer ring 1 rotates clockwise or anticlockwise in use, the two oblique single beams 3 are stretched or compressed to deform, and torsion data can be obtained through the resistance strain gauges 4.

To sum up, this torque sensor through setting up outer loop 1, inner ring 2, oblique monospar 3 and resistance strain gauge 4, compare in the tensile mode of measuring torsion of four straight monospar of conventionality, the device is two to one side monospar 3's setting for two oblique monospar 3 are tensile or compression takes place deformation, all can obtain torsion data through resistance strain gauge 4, the measuring method is changeable, it is more nimble to use, simplify the structure simultaneously, reduce the technology degree of difficulty and manufacturing cost, guarantee measurement accuracy, higher commonality has, accord with economic benefits, and application prospect is wide.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 utility model provides a torque sensor, includes outer loop (1), inner ring (2) and oblique monospar (3), its characterized in that: the inner ring (2) is located inside the outer ring (1), two oblique single beams (3) are arranged between the outer ring (1) and the inner ring (2), the oblique single beams (3) are matched with the inner ring (2) to form a Z-shaped combination, and resistance strain gauges (4) are arranged on two sides of the oblique single beams (3).

2. A torque transducer according to claim 1, wherein: the thicknesses of the outer ring (1) and the inner ring (2) are both larger than that of the oblique single beam (3).

3. A torque transducer according to claim 1, wherein: the distance between the outer ring (1) and the inner ring (2) is larger than the thickness of the oblique single beam (3).

4. A torque transducer according to claim 1, wherein: the top of the outer ring (1) and the top of the inner ring (2) are both provided with a first fixing hole (5).

5. A torque transducer according to claim 1, wherein: and the bottoms of the outer ring (1) and the inner ring (2) are provided with a second fixing hole (6) communicated with the first fixing hole (5).

6. A torque transducer according to claim 5, wherein: the diameter of the second fixing hole (6) is larger than that of the first fixing hole (5).