阅读说明：本技术 轴承受力检测传感器 (Bearing stress detection sensor ) 是由 汪星星 王建国 王梦茹 于 2019-12-20 设计创作，主要内容包括：本发明提供了一种轴承受力检测传感器,包括：外圈、中间过滤圈、和内圈,内圈形成有用于安装待检测轴承的轴承安装孔,外圈的内圈与中间过滤圈的外圈连接,中间过滤圈的内壁通过四个呈十字形设置的轮辐梁与内圈的外壁固定连接,中间过滤圈上设置有两个盲孔梁,两个盲孔梁沿中间过滤圈的圆心对称设置,且盲孔梁与两个轮辐梁沿同一直线设置,每个盲孔梁的上下两个梁面的中心位置处分别粘贴有一个径向力应变计,每个轮辐梁的两边粘贴有一个轴向力应变计。本发明在结构布置上采用的是三环式结构及径向力和轴向力梁的布置,整个结构的轴向力和径向力之间的相互影响非常小,可以实现对轴向力和径向力的精确检测。(The invention provides a bearing stress detection sensor, comprising: the inner ring is provided with a bearing mounting hole for mounting a bearing to be detected, the inner ring of the outer ring is connected with the outer ring of the middle filter ring, the inner wall of the middle filter ring is fixedly connected with the outer wall of the inner ring through four spoke beams arranged in a cross shape, the middle filter ring is provided with two blind hole beams, the two blind hole beams are symmetrically arranged along the center of the middle filter ring, the blind hole beams and the two spoke beams are arranged along the same straight line, the central positions of the upper beam surface and the lower beam surface of each blind hole beam are respectively pasted with a radial force strain gauge, and two sides of each spoke beam are pasted with an axial force strain gauge. The invention adopts a three-ring structure and the arrangement of the radial force and the axial force beam on the structural arrangement, the mutual influence between the axial force and the radial force of the whole structure is very small, and the accurate detection of the axial force and the radial force can be realized.)

1. A bearing force detection sensor, comprising: the device comprises an outer ring (1), a middle filter ring (2) and an inner ring (3), wherein the inner ring (3) is provided with a bearing mounting hole (5) for mounting a bearing (4) to be detected, the inner ring of the outer ring (1) is connected with the outer ring of the middle filtering ring (2), the inner wall of the middle filter ring (2) is fixedly connected with the outer wall of the inner ring (3) through four spoke beams (6) arranged in a cross shape, two blind hole beams (7) are arranged on the middle filter ring (2), the two blind hole beams (7) are symmetrically arranged along the circle center of the middle filter ring (2), the blind hole beam (7) and the two spoke beams (6) are arranged along the same straight line, a radial force strain gauge (8) is respectively stuck at the central positions of the upper beam surface and the lower beam surface of each blind hole beam (7), and an axial force strain gauge (9) is stuck at two sides of each spoke beam (6).

2. The bearing stress detection sensor according to claim 1, wherein an annular groove is formed between the outer ring (1) and the inner ring (3), and an annular cover plate (10) is mounted on each of upper and lower sides of the annular groove.

3. Bearing stress detection sensor according to claim 2, characterized in that the inner side of the annular cover plate (10) is filled with silicone gel.

4. The bearing force detection sensor according to the claim, wherein the outer ring (1), the intermediate filter ring (2), and the inner ring (3) are integrally formed.

5. The bearing force detecting sensor according to claim 1, wherein a plurality of mount mounting holes (11) are provided in a circumferential direction of the outer ring (1).

Technical Field

The invention relates to the field of sensors, in particular to a bearing stress detection sensor.

Background

With the rapid development of industrial automation, the quality requirement of products is higher and higher, so the detection requirement of the products in production and manufacturing engineering is higher, especially in the aspect of dynamic monitoring, and the application of the aspect is wider and wider.

In the aspect of weaving, papermaking, sheet metal's shaping etc, because extrusion force when the shaping has absolute influence to the homogeneity of product, consequently tension when shaping detects necessarily, can detect the shaping power value in process of production, this detection just contains tension-the radial force of bearing and the axial force that the mechanical axis received because inhomogeneous the axle that causes when rotating, after these two power values can both receive strict control, can play decisive effect to the quality control of in-process product.

Disclosure of Invention

The invention provides a bearing force detection sensor to solve at least one technical problem.

To solve the above problems, as one aspect of the present invention, there is provided a bearing force detection sensor including: the inner ring is provided with a bearing mounting hole for mounting a bearing to be detected, the inner ring of the outer ring is connected with the outer ring of the middle filter ring, the inner wall of the middle filter ring is fixedly connected with the outer wall of the inner ring through four spoke beams arranged in a cross shape, two blind hole beams are arranged on the middle filter ring and are symmetrically arranged in the center of the middle filter ring, the two blind hole beams and the two spoke beams are arranged along the same straight line, and each radial force strain meter is respectively pasted at the central positions of the upper beam surface and the lower beam surface of each blind hole beam and is pasted at two sides of each spoke beam.

Preferably, an annular groove is formed between the outer ring and the inner ring, and an annular cover plate is respectively installed on the upper side and the lower side of the annular groove.

Preferably, the inner side of the annular cover plate is filled with silicone gel.

Preferably, the outer ring, the middle filtering ring and the inner ring are integrally formed.

Preferably, a plurality of support mounting holes are formed in the circumferential direction of the outer ring.

In the technical scheme, the structural arrangement of the three-ring type structure and the arrangement of the radial force beam and the axial force beam are adopted, the outer ring is used for fixing, the central ring and the outer ring are used for sensing the radial force, the inner ring and the central ring are used for sensing the axial force, the cover plate is sealed with the potting silicone gel, the mutual influence between the axial force and the radial force of the whole structure is very small, and the accurate detection on the axial force and the radial force can be realized.

Drawings

FIG. 1 schematically illustrates the present invention in an installed configuration;

FIG. 2 schematically illustrates an exploded view of the present invention;

FIG. 3 schematically illustrates a perspective view of the present invention;

FIG. 4 schematically illustrates a front view of the present invention;

FIG. 5 schematically illustrates a cross-sectional view A-A of FIG. 4;

FIG. 6 schematically illustrates a cross-sectional view B-B of FIG. 4;

fig. 7 schematically shows a perspective view of the invention.

Reference numbers in the figures: 1. an outer ring; 2. a middle filtering ring; 3. an inner ring; 4. a bearing; 5. a bearing mounting hole; 6. a spoke beam; 7. a blind hole beam; 8. a radial force strain gauge; 9. an axial force strain gauge; 10. an annular cover plate; 11. a support mounting hole; 12. a fixed support; 13. a rotating shaft; 14. a bearing stress detection sensor; 15. and a clamp spring.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

In one aspect of the present invention, there is provided a bearing force detection sensor 14 for measuring an axial force and a radial force of a bearing 4, comprising: the inner ring 3 is provided with a bearing mounting hole 5 for mounting a bearing 4 to be detected, the inner ring of the outer ring 1 is connected with the outer ring of the middle filter ring 2, the inner wall of the middle filter ring 2 is fixedly connected with the outer wall of the inner ring 3 through four spoke beams 6 arranged in a cross shape, two blind hole beams 7 are arranged on the middle filter ring 2, the two blind hole beams 7 are symmetrically arranged along the circle center of the middle filter ring 2, the blind hole beams 7 and the two spoke beams 6 are arranged along the same straight line, each of the central positions of the upper beam surface and the lower beam surface of the blind hole beam 7 is respectively pasted with a radial force strain gauge 8, and each of the two sides of the spoke beams 6 is pasted with an axial force strain gauge 9.

Preferably, an annular groove is formed between the outer ring 1 and the inner ring 3, and an annular cover plate 10 is mounted on each of the upper and lower sides of the annular groove. Preferably, the inner side of the annular cover plate 10 is filled with silicone gel.

Preferably, the outer ring 1, the middle filter ring 2 and the inner ring 3 are integrally formed. Preferably, the outer ring 1 is provided with a plurality of seat mounting holes 11 in the circumferential direction.

When the bearing stress detection device is used, the bearing stress detection sensor 14 is fixed on the fixed support 12 and is arranged on the outer ring of the bearing 4, the bearing 4 is arranged in the inner ring 3, the two sides of the bearing are fixed by the clamp springs 15, the rotating shaft 13 penetrates through the inner hole of the bearing, and the rotating shaft 13 is in a stressed state during working. The bearing stress detection sensor 14 is fixed on the fixed support 12 by 8 screws of the outer ring, and during installation, the measurement direction of the radial force of the sensor is required to be consistent with the stress direction of the sensor, the axial force of the sensor is along the axial direction, and the radial force is perpendicular to the axial direction of the shaft and is fixed in one direction.

The outer ring 1 of the sensor is a supporting and fixing part of the whole sensor, and 8 support mounting holes 11 are uniformly distributed on the outer ring 1 and used for fixing the sensor to a fixed support 12. Two blind hole beams 7 are symmetrically arranged in the middle of the outer ring 1 and the middle filter ring 2, the upper side and the lower side of each blind hole beam 7 are provided with a blind hole which is symmetrically distributed, the beam surface formed by the two blind holes is vertical to the stress direction of the spoke beam 6, so that the radial force is most sensitive to the feeling, but is not sensitive to the axial force, and a radial force strain gauge 8 is respectively stuck at the center position of the upper beam surface and the lower beam surface in the blind hole, is used for sensing the radial force vertical to the beam and is also used as a support for connecting the inner ring.

The middle part between the outer ring 1 and the inner ring 3 of the middle filter ring 2 is composed of four uniformly distributed spoke beams 6 and is used for sensing the axial force, and the sensitivity to the radial force is very small because the spoke beams are symmetrically distributed and are vertical to the blind hole beam 7, and the spoke beams are only sensitive to the axial force. The sensor is sealed by an annular cover plate 10, and before the cover plate is sealed, silicone gel is filled inside the sensor for water and oil resistance. And a 9-core connector is arranged on the outer ring 1 and used for connecting electric appliances.

In the technical scheme, the structural arrangement of the three-ring type structure and the arrangement of the radial force beam and the axial force beam are adopted, the outer ring is used for fixing, the central ring and the outer ring are used for sensing the radial force, the inner ring and the central ring are used for sensing the axial force, the cover plate is sealed with the potting silicone gel, the mutual influence between the axial force and the radial force of the whole structure is very small, and the accurate detection on the axial force and the radial force can be realized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.