Belt deviation force measuring sensor

Abstract

The utility model relates to a belt monitoring device, in particular to a belt deviation force measuring sensor, which comprises a support, a first seat portion and a second seat portion of the support are connected through a first metal arm and a second metal arm. A first strain gauge is attached to one side of the first metal arm, a second strain gauge is attached to one side of the second metal arm, and the first strain gauge and the second strain gauge are connected with an electric wire at the same time; the first belt positioning mechanism comprises a first rolling shaft and a first rolling wheel arranged on the first rolling shaft in a sleeving manner; the second belt positioning mechanism comprises a second rolling shaft and a second rolling wheel arranged on the second rolling shaft in a sleeving manner; the first rolling shaft and the second rolling shaft are fixed to the two ends of the first base part correspondingly, so that the first rolling wheel is arranged to be attached to the first side edge of the belt, and the second rolling wheel is arranged to be attached to the second side edge of the belt. By means of the structure of the utility model, a smaller sensor volume can be set through the H-shaped support structure, and the measurement precision is high.

Description

Technical Field

[0001] The utility model relates to a belt monitoring device, in particular to a belt deviation force measuring sensor. Background Technique

[0002] The description of this part only provides background information related to the disclosure of the utility model, and does not constitute the prior art.

[0003] During the operation of the belt, the situation of deviation may often occur. If the deviation is serious, it may cause the belt to derail directly, resulting in serious damage to the equipment structure and production losses.

[0004] Most of the existing belt deviation force monitoring devices need to realize the force transmission and monitoring of the two sides of the belt based on a complex mechanical force transmission structure. Restricted by the structure, most of the monitoring devices often require a large installation space, which has a greater impact on the layout design of modern highly intensive production lines. And some of the existing monitoring devices are small in volume, but cannot be adjusted flexibly and have poor measurement accuracy.

[0005] At present, there is no belt deviation force measuring sensor that can solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a belt deviation force measuring sensor, which can set a smaller sensor volume through an H-shaped bracket structure and has higher measurement accuracy.

[0007] In order to achieve the above purpose, the utility model discloses a belt deviation force measuring sensor for measuring the deviation force of the belt. Among them, the belt has a first side and a second side arranged oppositely; the belt deviation force measuring sensor includes:

[0008] A bracket, the bracket includes a first seat portion on the side close to the belt direction and a second seat portion arranged on the side far from the belt direction. The first seat portion and the second seat portion are connected by a first metal arm and a second metal arm; a first strain gauge is attached to one side of the first metal arm, a second strain gauge is attached to one side of the second metal arm, and the first strain gauge and the second strain gauge are simultaneously connected to a wire;

[0009] A first belt positioning mechanism, the first belt positioning mechanism includes a first rolling shaft and a first rolling wheel sleeved on the first rolling shaft;

[0010] A second belt positioning mechanism, the second belt positioning mechanism includes a second rolling shaft and a second rolling wheel sleeved on the second rolling shaft;

[0011] Wherein, the first rolling shaft and the second rolling shaft are respectively fixed at two ends of the first seat portion, such that the first rolling wheel is arranged adjacent to the first side edge of the belt, and the second rolling wheel is arranged adjacent to the second side edge of the belt;

[0012] The distance between the first rolling wheel and the first metal arm is equal to the distance between the second rolling wheel and the second metal arm along the direction perpendicular to the first side edge to the second side edge.

[0013] Further, the first metal arm extends in a direction parallel to the first side edge of the belt, and the second metal arm extends in a direction parallel to the second side edge of the belt.

[0014] Further, the first metal arm and the second metal arm are equal in length.

[0015] Further, the first side edge and the second side edge of the belt are parallel to each other, and the first metal arm and the second metal arm are parallel to each other.

[0016] Further, two ends of the first seat portion include a first through hole and a second through hole. Wherein, the width of the first through hole matches the diameter of the first rolling shaft, the first rolling shaft penetrates and is detachably fixed in the first through hole, the width of the second through hole matches the diameter of the second rolling shaft, and the second rolling shaft penetrates and is detachably fixed in the second through hole.

[0017] Further, the first through hole has a redundant empty slot extending along a direction perpendicular to the first side edge of the belt, such that the first rolling shaft can adjust its position along the direction perpendicular to the first side edge of the belt; and the second through hole has a redundant empty slot extending along a direction perpendicular to the second side edge of the belt, such that the second rolling shaft can adjust its position along the direction perpendicular to the second side edge of the belt.

[0018] Further, the first strain gauge is attached to the middle position on the side of the first metal arm away from the second metal arm, and the second strain gauge is attached to the middle position on the side of the second metal arm away from the first metal arm.

[0019] Further, the wire is wound around the first metal arm, the second metal arm and / or between the first metal arm and the second metal arm in multiple turns, and is respectively connected to the first strain gauge and the second strain gauge through insulating glue.

[0020] By means of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0021] The belt deviation force measurement sensor of the present utility model can be provided with a first metal arm for attaching a first strain gauge and a second metal arm for attaching a second strain gauge between a first seat portion and a second seat portion of a bracket, and is respectively connected to the first strain gauge and the second strain gauge through wires. It has a smaller axial dimension, and the first metal arm and the second metal arm respectively correspond to two sides of the belt, with accurate force measurement effect and low material cost.

[0022] To further understand the features and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, the provided drawings are only for reference and illustration, and are not used to limit the present utility model. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a three-dimensional schematic diagram of a belt deviation force measurement sensor provided by an embodiment of this specification;

[0025] In the figure: 1. Bracket; 11. First seat portion; 111. First through hole; 112. Second through hole; 12. Second seat portion; 13. First metal arm; 131. First strain gauge; 14. Second metal arm; 141. Second strain gauge; 2. First belt positioning mechanism; 21. First rolling shaft; 22. First rolling wheel; 3. Second belt positioning mechanism; 31. Second rolling shaft; 32. Second rolling wheel. Detailed Embodiments

[0026] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0027] The following are specific embodiments to illustrate the implementation manners of the present utility model. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. Additionally, the drawings of the present utility model are only for simple schematic illustration and are not drawn according to actual dimensions. The following embodiments will further detail the related technical content of the present utility model, but the disclosed content is not used to limit the protection scope of the present utility model.

[0028] It should be understood that although terms such as "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another or one signal from another. Additionally, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of more of the associated listed items.

[0029] Please refer to Figure 1 , a belt deviation force measurement sensor for this embodiment, which is used to measure the deviation force of the belt. Among them, the belt has a first side and a second side arranged oppositely; the belt deviation force measurement sensor includes:

[0030] A bracket 1, the bracket 1 includes a first seat portion 11 on the side close to the belt direction and a second seat portion 12 arranged on the side far from the belt direction. The first seat portion 11 and the second seat portion 12 are connected by a first metal arm 13 and a second metal arm 14; a first strain gauge 131 is attached to one side of the first metal arm 13, a second strain gauge 141 is attached to one side of the second metal arm 14, and the first strain gauge 131 and the second strain gauge 141 are simultaneously connected to a wire;

[0031] A first belt positioning mechanism 2, the first belt positioning mechanism 2 includes a first rolling shaft 21 and a first rolling wheel 22 sleeved on the first rolling shaft 21;

[0032] A second belt positioning mechanism 3, the second belt positioning mechanism 3 includes a second rolling shaft 31 and a second rolling wheel 32 sleeved on the second rolling shaft 31;

[0033] Among them, the first rolling shaft 21 and the second rolling shaft 31 are respectively fixed at both ends of the first seat portion 11, so that the first rolling wheel 22 is arranged adjacent to the first side of the belt, and the second rolling wheel 32 is arranged adjacent to the second side of the belt;

[0034] The distance between the first rolling wheel 22 and the first metal arm 13 is equal to the distance between the second rolling wheel 32 and the second metal arm along the direction from the first side edge to the second side edge of the belt.

[0035] For the above structure, during installation, first, the operator fixes one side of the second seat part 12 on a stable external base. Then, the corresponding-sized first rolling shaft 21 and second rolling shaft 31 are selected. After the first rolling shaft 21 and the second rolling shaft 31 are fixed at both ends of the first seat part 11, the first rolling wheel 22 on the first rolling shaft 21 is located near the first side edge of the belt, and the second rolling wheel 32 on the second rolling shaft 31 is located near the second side edge of the belt, leaving an allowable offset error distance between the first rolling wheel 22 and the second rolling wheel 32 and the belt, or making the first rolling wheel 22 directly adhere to the first side edge of the belt and the second rolling wheel 32 directly adhere to the second side edge of the belt. Then, the first strain gauge 131 is attached to one side of the first metal arm 13, and the second strain gauge 141 is attached to one side of the second metal arm 14, and the positions of the first strain gauge 131 and the second strain gauge 141 correspond to each other along the direction from the first side edge to the second side edge. Specifically, the thicknesses of the first strain gauge 131 and the second strain gauge 141 are specifically set according to the needs of the measurement range, but the thicknesses of the first strain gauge 131 and the second strain gauge 141 need to be kept equal.

[0036] With the above structure, during use, the operator only needs to start the belt running. When the belt runs off track, for example, if the belt runs off track towards the direction of the first side edge, the first side edge of the belt comes into contact with the first rolling wheel 22 on one side thereof, driving the first rolling wheel 22 to rotate and applying a force to the first metal arm 13 that is not parallel to the running direction of the belt. The first belt positioning mechanism 2 transmits the force to the first seat portion 11. Under the action of the above force, the first metal arm 13 and the second metal arm 14 on one side of the first seat portion 11 may undergo slight deformation, and drive the first strain gauge 131 and the second strain gauge 141 fitted thereon to undergo possible slight deformation, causing the resistance of the first strain gauge 131 and the second strain gauge 141 to change, and the electrical signal transmitted to the wire to change. The external monitor monitors the change and converts the change value into a force in real time, and calculates the magnitude of the force according to the preset calibrated value. Similarly, when the belt runs off track towards the direction of the second side edge, the second side edge of the belt comes into contact with the second rolling wheel 32 on one side thereof, driving the second rolling wheel 32 to rotate and applying a force to the first metal arm 13 that is not parallel to the running direction of the belt. The second belt positioning mechanism 3 transmits the force to the first seat portion 11. Under the action of the above force, the first metal arm 13 and the second metal arm 14 on one side of the first seat portion 11 may undergo slight deformation, and drive the first strain gauge 131 and the second strain gauge 141 fitted thereon to undergo possible slight deformation. Of course, at this time, due to the position of the second belt positioning mechanism 3, compared with the situation where the belt runs off track towards the first side edge, the amount of deformation of the second strain gauge 141 is greater than that of the first strain gauge 131 at this time. Therefore, the specific running-off track direction and the magnitude of the running-off track force of the belt can be deduced based on the difference between the first strain gauge 131 and the second strain gauge 141. When the running-off track force of the belt is greater than the preset value, the operator intervenes and stops the belt running, and adjusts the belt to avoid losses.

[0037] Furthermore, the first metal arm 13 extends in a direction parallel to the first side edge of the belt, and the second metal arm 14 extends in a direction parallel to the second side edge of the belt, and the lengths of the first metal arm 13 and the second metal arm 14 are equal. At the same time, in this embodiment, the first side edge and the second side edge of the belt are parallel to each other, and the first metal arm 13 and the second metal arm 14 are parallel to each other. Therefore, through the above structure, whether the first side edge of the belt applies force to the first belt positioning mechanism 2 or the second side edge of the belt applies force to the second belt positioning mechanism 3, the forces finally conducted to the first metal arm 13 and the second metal arm 14 are balanced. That is to say, the deformations and resistance changes that occur to the first strain gauges 131 on the first metal arm 13 and the second strain gauges 141 on the second metal arm 14 are also smooth, so as to further improve the measurement accuracy of this embodiment. Generally speaking, in this embodiment, the first seat portion 11, the second seat portion 12, the first metal arm 13 and the second metal arm 14 are of an integral structure, and generally form an approximate H-shaped metal structure.

[0038] Of course, in another embodiment, since the belt is irregular and the first side edge and the second side edge of the belt are not parallel, the first rolling shaft 21 and the second rolling shaft 31 in this embodiment are also not parallel, but as long as they can cover the two side edges of the belt.

[0039] Furthermore, both ends of the first seat portion 11 include a first through hole 111 and a second through hole 112. Among them, the width of the first through hole 111 matches the diameter of the first rolling shaft 21, and the first rolling shaft 21 passes through and is detachably fixed in the first through hole 111. The width of the second through hole 112 matches the diameter of the second rolling shaft 31, and the second rolling shaft 31 passes through and is detachably fixed in the second through hole 112. Specifically, the first through hole 111 has a redundant empty slot extending in a direction perpendicular to the first side edge of the belt, so that the first rolling shaft 21 can adjust its position in a direction perpendicular to the first side edge of the belt; and similarly, the second through hole 112 has a redundant empty slot extending in a direction perpendicular to the second side edge of the belt, so that the second rolling shaft 31 can adjust its position in a direction perpendicular to the second side edge of the belt. That is to say, during the use process, the operator can adjust the distance between the first rolling shaft 21 and the second rolling shaft 31 correspondingly according to the actual width of the belt, so that the first rolling wheel 22 and the second rolling wheel 32 are in a state of generally clamping or approaching clamping the two sides of the belt, adapting to belts of various sizes, without having to replace the overall structure, greatly improving the monitoring efficiency and the applicable range of the present utility model.

[0040] Further, the first strain gauge 131 is attached to the middle position on the side of the first metal arm 13 away from the second metal arm 14, and the second strain gauge 141 is attached to the middle position on the side of the second metal arm 14 away from the first metal arm 13. With the above structure, the force-receiving effect of the strain gauges can be made more stable and the measurement accuracy can be higher. During specific installation, the first strain gauge 131 and the second strain gauge 141 with corresponding sizes and thicknesses can be selected according to actual needs, but the consistency between the first strain gauge 131 and the second strain gauge 141 needs to be maintained to avoid unbalanced force-measuring effects.

[0041] Further, the wire is wound around the first metal arm 13, the second metal arm 14, and / or between the first metal arm 13 and the second metal arm 14 in multiple turns and is connected to the first strain gauge 131 and the second strain gauge 141 respectively through insulating glue. Specifically, by virtue of the gap between the first metal arm 13 and the second metal arm 14, the wire can be wound and fixed firmly, effectively avoiding the loosening of the wire and preventing the situation where the wire drags the first strain gauge 131 and the second strain gauge 141 to fall off when the bracket 1 vibrates.

[0042] The content disclosed above is only the preferred feasible embodiment of the present utility model, and does not limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present utility model are included in the scope of the patent application of the present utility model.

[0043] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments.

[0044] Although the present application is depicted through embodiments, those of ordinary skill in the art know that the present application has many deformations and variations without departing from the spirit of the present application. It is hoped that the appended embodiments include these deformations and variations without departing from the present application.

Claims

1. A belt deviation force measurement sensor for measuring the deviation force of a belt, wherein, The belt has a first side edge and a second side edge which are oppositely arranged; characterized in that, the belt deviation force measuring sensor includes: A bracket, the bracket includes a first seat portion on a side close to the belt direction, and a second seat portion arranged on a side far from the belt direction, the first seat portion and the second seat portion are connected by a first metal arm and a second metal arm; a first strain gauge is attached to one side of the first metal arm, a second strain gauge is attached to one side of the second metal arm, and the first strain gauge and the second strain gauge are simultaneously connected to a wire; A first belt positioning mechanism, the first belt positioning mechanism includes a first rolling shaft and a first rolling wheel sleeved on the first rolling shaft; A second belt positioning mechanism, the second belt positioning mechanism includes a second rolling shaft and a second rolling wheel sleeved on the second rolling shaft; Wherein, the first rolling shaft and the second rolling shaft are respectively fixed at two ends of the first seat portion, so that the first rolling wheel is arranged adjacent to the first side edge of the belt, and the second rolling wheel is arranged adjacent to the second side edge of the belt; The distance between the first rolling wheel and the first metal arm is equal to the distance between the second rolling wheel and the second metal arm along the direction perpendicular to the first side edge to the second side edge of the belt.

2. The belt deviation force measuring sensor according to claim 1, wherein: The first metal arm extends in a direction parallel to the first side edge of the belt, and the second metal arm extends in a direction parallel to the second side edge of the belt.

3. The belt deviation force measuring sensor according to claim 2, characterized in that: The lengths of the first metal arm and the second metal arm are equal.

4. The belt deviation force measuring sensor according to claim 2, characterized in that: The first side edge and the second side edge of the belt are parallel to each other, and the first metal arm and the second metal arm are parallel to each other.

5. The belt deviation force measuring sensor according to claim 1, characterized in that: Both ends of the first seat portion include a first through hole and a second through hole. Wherein, the width of the first through hole matches the diameter of the first rolling shaft, the first rolling shaft penetrates through and is detachably fixed in the first through hole, the width of the second through hole matches the diameter of the second rolling shaft, and the second rolling shaft penetrates through and is detachably fixed in the second through hole.

6. The belt deviation force measuring sensor according to claim 5, wherein: The first through hole has a redundant empty slot extending in a direction perpendicular to the first side edge of the belt, so that the first rolling shaft can adjust its position in a direction perpendicular to the first side edge of the belt; and the second through hole has a redundant empty slot extending in a direction perpendicular to the second side edge of the belt, so that the second rolling shaft can adjust its position in a direction perpendicular to the second side edge of the belt.

7. The belt deviation force measuring sensor according to claim 1, wherein: The first strain gauge is attached to the middle position on the side of the first metal arm far from the second metal arm, and the second strain gauge is attached to the middle position on the side of the second metal arm far from the first metal arm.

8. The belt deviation force measuring sensor according to claim 1, wherein: The wire is wound around the first metal arm, the second metal arm and / or between the first metal arm and the second metal arm in multiple turns, and is respectively connected to the first strain gauge and the second strain gauge through insulating glue.

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