Tension detection structure

Abstract

The utility model relates to tension detection technical field, concretely relates to a tension detection structure, include: along the vertical setting's base plate, counterweight mechanism is located base plate, including the counterweight spare that can move along the vertical, counterweight spare is used for with the contact of banded article, tension rod, is pasted in counterweight spare top, elastic member, one end acts on tension rod, the other end acts on base plate, detection sensor, is located base plate, is used for detecting tension rod is close to the end position of elastic member to obtain the tension information of banded article. The application utilizes counterweight mechanism, reduces the structure number of additional increase, drives tension rod through counterweight spare, so that the change situation of the tension information of banded article can be known in time.

Description

Technical Field

[0001] This utility model relates to the field of tension detection technology, and specifically to a tension detection structure. Background Technology

[0002] In the field of DC motor manufacturing, the commutator, as an indispensable key component of the motor rotor, has its electrical performance directly affected by the grinding precision of its copper strip surface. In current industrial production, the grinding process of commutator copper strips widely adopts double-sided grinding belts as processing consumables. These grinding belts have a double-sided heterogeneous structure: one side is a grinding functional layer, and the other side is a smoothing auxiliary layer.

[0003] To achieve real-time monitoring of the tension of the grinding belt, existing technologies often employ a combination of tension measuring wheels and sensors. In this scheme, three tension measuring wheels are arranged in a triangle, with the grinding belt sequentially wrapping around each wheel to form a triangular wrapping path. Only one tension measuring wheel is connected to the tension sensor to detect changes in the tension of the grinding belt, while the other two primarily serve a guiding function.

[0004] The above monitoring scheme requires the installation of three tension measuring wheels and corresponding sensors, brackets, and other components.

[0005] The high complexity of the overall structure results in high structural costs and makes the installation and commissioning process more complicated.

[0006] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0007] The purpose of this invention is to provide a tension detection structure.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A tension detection structure, comprising:

[0010] A substrate arranged vertically;

[0011] A counterweight mechanism, disposed on the substrate, includes a counterweight that can move vertically and is used to contact a strip-shaped object;

[0012] The tension bar is attached to the top of the counterweight;

[0013] An elastic element, one end of which acts on the tension bar, and the other end of which acts on the substrate;

[0014] A detection sensor, disposed on the substrate, is used to detect the position of the end of the tension bar near the elastic member to obtain tension information of the strip-shaped object.

[0015] This application uses a strip-shaped object as an example of a grinding belt, and the grinding object of the grinding belt is described as the commutator copper strip of a motor rotor, but it is not limited to this.

[0016] The base plate is the foundation support structure, and its vertical arrangement allows for tension adjustment by moving the counterweight vertically.

[0017] In the above scheme, the counterweight mechanism (specifically, the counterweight component) comes into contact with the strip object during the tension detection process. When the tension of the strip object increases, the counterweight mechanism moves upward, and when the tension of the strip object decreases, the counterweight mechanism moves downward. This part can refer to the description of the tension adjustment of the counterweight structure in the prior art.

[0018] This application utilizes a counterweight mechanism to support a tension rod, with the tension rod attached to the top of the counterweight, achieving support for the tension rod from the counterweight without connecting the two. Based on this, when the counterweight moves up or down, the tension rod moves accordingly. A sensor then detects the tension of the strip by detecting the position of the tension rod near the end of the elastic element. The structure is simple, resulting in low cost and stable detection.

[0019] This application utilizes an elastic element in conjunction with a counterweight to support the tension rod. The support method is simple, and neither element restricts the movement of the tension rod, making it convenient for the detection sensor to perform detection.

[0020] In summary, this application utilizes a counterweight mechanism to reduce the number of additional structures, and by using the counterweight to drive the tension rod, it is possible to obtain timely information on changes in the tension of the strip object.

[0021] In one implementation, the detection sensor is set as an angle sensor (not limited to this, as long as it meets the detection purpose): initially, the tension rod swings to the control position (corresponding to a voltage signal output by the angle sensor); when the tension rod (end) is lower than the control position, it indicates that the tension of the strip object has decreased; when the tension rod (end) is higher than the control position, it indicates that the tension of the strip object has increased.

[0022] In a further technical solution, the substrate is provided with a first through hole extending vertically, and the counterweight is inserted into the substrate through the first through hole;

[0023] The portion of the substrate placed within the first through hole is adapted to the size of the first through hole;

[0024] Along the thickness direction of the substrate, the two ends of the counterweight are respectively located on both symmetrical sides of the substrate.

[0025] The first vertically extending perforation restricts the movable direction of the counterweight, confining it within a predetermined area. Based on this, support and positioning of the counterweight can be achieved with only simple modifications to the base plate, resulting in low structural cost and facilitating counterweight replacement.

[0026] Along the thickness direction of the substrate, the two ends of the counterweight are located on opposite sides of the substrate. Based on this, the position of the counterweight can be observed from both sides of the substrate, thereby obtaining tension information of the strip-shaped object and avoiding the need to use a transparent substrate.

[0027] In a further technical solution, the counterweight mechanism also includes a slide rail, which extends vertically and is fixedly mounted on the base plate;

[0028] The counterweight includes:

[0029] The slider is slidably mounted on the slide rail;

[0030] A counterweight, detachably mounted to the slider, is used to contact the strip-shaped object.

[0031] The slide rail in this embodiment can be matched with the first through hole in the above embodiment. Here, only the slide rail is described separately: the slide rail and the slider are slidably assembled, which can ensure the sliding fit accuracy, further prevent the counterweight from moving in directions other than the vertical direction, and the resistance (friction) it receives can also be appropriately reduced.

[0032] In some embodiments, along the thickness direction of the substrate, the ends of the slide rail and the counterweight away from the slider are respectively located on both sides of the substrate.

[0033] In some embodiments, the counterweight and the slider are threadedly connected and assembled.

[0034] In a further technical solution, the elastic element is configured as a compression spring, which extends vertically.

[0035] Compared to using rubber sheets or other elastic elements, compression springs can deform into tension bars to provide sufficient movement space while avoiding a significant increase in resistance during the movement of the tension bar, thus avoiding affecting the detection sensor's ability to detect tension information of the strip-shaped object.

[0036] Compared to a compression spring that is tilted, a compression spring that extends vertically is more effective at supporting the tension bar.

[0037] The compression spring design also avoids the need to add the two hook structures described below separately.

[0038] A further technical solution also includes a first hook structure, through which the elastic element acts on the tension bar;

[0039] The tension bar has a second through hole corresponding to the first hook structure.

[0040] The first hook structure hooks onto the wall of the second perforation, achieving an indirect connection between the end of the elastic element and the tension rod, thereby enabling quick connection and separation of the two, facilitating the replacement of both.

[0041] When the elastic element is a compression spring, one end of the compression spring forms the first hook structure.

[0042] A further technical solution also includes a vertical driving component, wherein the elastic component acts on the substrate through the vertical driving component;

[0043] The vertical driving component includes a driving end and an output end. The driving end is fixedly disposed on the substrate, and the output end is connected to the elastic component.

[0044] With the help of the vertical drive component, the elastic element as a whole can move vertically, which makes it easy to adjust the initial position of the tension bar to meet the testing requirements.

[0045] In some embodiments, the vertical drive is provided as an electric slide.

[0046] A further technical solution also includes a second hook structure, through which the elastic element is connected to the output end;

[0047] The output end has a protruding structure corresponding to the second hook structure.

[0048] The second hook structure hooks onto the protruding structure, realizing an indirect connection between the end of the elastic element and the output end, thereby enabling quick connection and separation of the two, providing convenience for replacing them.

[0049] When the elastic element is a compression spring, one end of the compression spring forms a second hook structure.

[0050] The protruding structure is described as a cylindrical structure, and the second hook structure is described as a hook. The hook is an arc-shaped structure with a central angle greater than 180 degrees (it can be set as a circular structure). In this case, the hook can be directly fitted onto the outside of the cylindrical structure, avoiding the need to drill holes in the cylindrical structure.

[0051] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0052] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0053] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0054] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0055] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0056] The working principle and advantages of this utility model are as follows:

[0057] The base plate is the foundation support structure, and its vertical arrangement allows for tension adjustment by moving the counterweight vertically.

[0058] The counterweight mechanism (specifically, the counterweight component) comes into contact with the strip object during the tension detection process. When the tension of the strip object increases, the counterweight mechanism moves upward; when the tension of the strip object decreases, the counterweight mechanism moves downward. This part can be referred to in the existing technology for the description of the counterweight structure for tension adjustment.

[0059] This application utilizes a counterweight mechanism to support a tension rod, with the tension rod attached to the top of the counterweight, achieving support for the tension rod from the counterweight without connecting the two. Based on this, when the counterweight moves up or down, the tension rod moves accordingly. A sensor then detects the tension of the strip by detecting the position of the tension rod near the end of the elastic element. The structure is simple, resulting in low cost and stable detection.

[0060] This application utilizes an elastic element in conjunction with a counterweight to support the tension rod. The support method is simple, and neither element restricts the movement of the tension rod, making it convenient for the detection sensor to perform detection.

[0061] In summary, this application utilizes a counterweight mechanism to reduce the number of additional structures. By using the counterweight to drive the tension rod, it is possible to obtain timely information on changes in the tension of the strip object, and the installation and debugging are also relatively easy. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the tension detection structure according to an embodiment of the present invention;

[0063] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0064] In the above figures: 1. Base plate; 11. First perforation; 2. Counterweight mechanism; 21. Counterweight component; 211. Slider; 212. Counterweight block; 22. Slide rail; 3. Strip-shaped object; 4. Tension rod; 41. Second perforation; 5. Elastic component; 6. Detection sensor; 7. First hook structure; 8. Vertical drive component; 81. Drive end; 82. Output end; 9. Second hook structure; 10. Protrusion structure; 100. Motor rotor. Detailed Implementation

[0065] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0066] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0067] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0068] See Figures 1-2 A tension detection structure, comprising:

[0069] A vertically arranged substrate 1;

[0070] The counterweight mechanism 2 is disposed on the base plate 1 and includes a counterweight 21 that can move vertically. The counterweight 21 is used to contact the strip-shaped object 3.

[0071] Tension bar 4 is attached to the top of the counterweight 21;

[0072] The elastic element 5 has one end acting on the tension rod 4 and the other end acting on the substrate 1;

[0073] A detection sensor 6 is disposed on the substrate 1 and is used to detect the end position of the tension bar 4 near the elastic member 5 to obtain tension information of the strip object 3.

[0074] This application uses a strip-shaped object 3 as an example of a grinding belt, and the grinding object of the grinding belt is described as the commutator copper strip of the motor rotor 100, but it is not limited to this.

[0075] The base plate 1 is a basic support structure, which is vertically arranged to facilitate the tension adjustment of the counterweight 21 by moving it vertically.

[0076] The counterweight mechanism 2 (specifically, the counterweight component 21) comes into contact with the strip object 3 during the tension detection process. When the tension of the strip object 3 increases, the counterweight mechanism 2 moves upward, and when the tension of the strip object 3 decreases, the counterweight mechanism 2 moves downward. This part can be referred to the description of the adjustment of tension by the counterweight structure in the prior art.

[0077] This application utilizes a counterweight mechanism 2 to support a tension rod 4, with the tension rod 4 attached to the top of the counterweight 21. This achieves support of the tension rod 4 by the counterweight 21 without connecting the two. Based on this, when the counterweight 21 moves up or down, the tension rod 4 moves accordingly. The detection sensor 6 then detects the end of the tension rod 4 near the elastic element 5 to obtain tension information of the strip-shaped object 3. The structure is simple, resulting in low cost and stable detection.

[0078] This application utilizes the elastic element 5 in conjunction with the counterweight 21 to support the tension rod 4. The support method is simple, and neither of them restricts the movement of the tension rod 4, which facilitates detection by the sensor 6.

[0079] In summary, this application utilizes the counterweight mechanism 2 to reduce the number of additional structures, and drives the tension rod 4 through the counterweight 21, so that the changes in the tension information of the strip object 3 can be obtained in a timely manner.

[0080] In one embodiment, the detection sensor 6 is set as an angle sensor (not limited to this, as long as it meets the detection purpose): initially, the tension rod 4 swings to the control position (corresponding to a voltage signal output by the angle sensor); when the tension rod 4 (end) is lower than the control position, it indicates that the tension of the strip object 3 has decreased; when the tension rod 4 (end) is higher than the control position, it indicates that the tension of the strip object 3 has increased.

[0081] See Figure 1 In this embodiment, the substrate 1 is provided with a first through hole 11 extending vertically, and the counterweight 21 passes through the first through hole 11 and is disposed on the substrate 1.

[0082] The portion of the substrate 1 placed inside the first through hole 11 is adapted to the size of the first through hole 11;

[0083] Along the thickness direction of the substrate 1, the two ends of the counterweight 21 are respectively located on the symmetrical sides of the substrate 1.

[0084] The first vertically extending perforation 11 restricts the movable direction of the counterweight 21, confining it within a predetermined area. Based on this, the support and positioning of the counterweight 21 can be achieved by simply modifying the base plate 1, resulting in low structural cost and easy replacement of the counterweight 21.

[0085] Along the thickness direction of the substrate 1, the two ends of the counterweight 21 are located on opposite sides of the substrate 1. Based on this, the position of the counterweight 21 can be observed from both sides of the substrate 1, thereby obtaining the tension information of the strip object 3, avoiding the need to use a transparent material for the substrate 1.

[0086] See Figure 2 In this embodiment, the counterweight mechanism 2 further includes a slide rail 22, which extends vertically and is fixedly disposed on the base plate 1;

[0087] The counterweight 21 includes:

[0088] Slider 211 is slidably mounted on slide rail 22;

[0089] The counterweight 212 is detachably mounted on the slider 211 and is used to contact the strip-shaped object 3.

[0090] In this embodiment, the slide rail 22 can be matched with the first through hole 11 in the above embodiment. Here, only the slide rail 22 will be described separately: the slide rail 22 and the slider 211 are slidably assembled, which can ensure the sliding fit accuracy, further prevent the counterweight 212 from moving in directions other than the vertical direction, and the resistance (friction) it receives can also be appropriately reduced.

[0091] In some embodiments, along the thickness direction of the substrate 1, the ends of the slide rail 22 and the counterweight 212 away from the slider 211 are respectively located on both sides of the substrate 1.

[0092] In some embodiments, the counterweight 212 is threadedly connected to the slider 211.

[0093] See Figure 2 In this embodiment, the elastic element 5 is configured as a compression spring, which extends vertically.

[0094] Compared to the elastic element 5 being a rubber sheet or similar object, the compression spring can provide sufficient movement space by deforming into the tension rod 4, while avoiding a significant increase in the resistance encountered by the tension rod 4 during movement, thereby avoiding affecting the detection sensor 6's detection of the tension information of the strip object 3.

[0095] Compared to a compression spring that is tilted, a compression spring that extends vertically is more effective at supporting the tension bar 4.

[0096] The compression spring design also avoids the need to add the two hook structures described below separately.

[0097] See Figure 2 In this embodiment, a first hook structure 7 is also included, and the elastic element 5 acts on the tension rod 4 through the first hook structure 7;

[0098] The tension bar 4 has a second through hole 41 corresponding to the first hook structure 7.

[0099] The first hook structure 7 hooks onto the wall of the second through hole 41, realizing an indirect connection between the end of the elastic element 5 and the tension rod 4, thereby enabling quick connection and separation of the two, and providing convenience for replacing the two.

[0100] When the elastic element 5 is a compression spring, one end of the compression spring forms the first hook structure 7.

[0101] See Figure 2 In this embodiment, a vertical driving member 8 is also included, and the elastic member 5 acts on the substrate 1 through the vertical driving member 8;

[0102] The vertical driving member 8 includes a driving end 81 and an output end 82. The driving end 81 is fixedly disposed on the substrate 1, and the output end 82 is connected to the elastic member 5.

[0103] With the help of the vertical drive component 8, the elastic component 5 can move vertically as a whole, which makes it easy to adjust the initial position of the tension bar 4 to meet the testing requirements.

[0104] In some embodiments, the vertical drive 8 is configured as an electric slide.

[0105] See Figure 2 In this embodiment, a second hook structure 9 is also included, and the elastic element 5 is connected to the output end 82 through the second hook structure 9;

[0106] The output end 82 is provided with a protruding structure 10 corresponding to the second hook structure 9.

[0107] The second hook structure 9 hooks onto the protruding structure 10, realizing an indirect connection between the end of the elastic element 5 and the output end 82, thereby enabling quick connection and separation of the two, providing convenience for replacing the two.

[0108] When the elastic element 5 is a compression spring, one end of the compression spring forms the second hook structure 9.

[0109] The protruding structure 10 is described as a cylindrical structure, and the second hook structure 9 is described as a hook. The hook is an arc-shaped structure with a central angle greater than 180 degrees (it can be set as a circular structure). In this case, the hook can be directly fitted onto the outside of the cylindrical structure, avoiding the need to open holes in the cylindrical structure.

[0110] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tension detection structure, characterized in that: include: A substrate (1) arranged vertically; The counterweight mechanism (2) is provided on the substrate (1) and includes a counterweight (21) that can move vertically, the counterweight (21) being used to contact the strip-shaped object (3); Tension bar (4) is attached to the top of the counterweight (21); The elastic element (5) acts on the tension bar (4) at one end and on the substrate (1) at the other end. A detection sensor (6) is disposed on the substrate (1) for detecting the end position of the tension bar (4) near the elastic member (5) to obtain tension information of the strip (3).

2. The tension detection structure according to claim 1, characterized in that: The substrate (1) is provided with a first through hole (11) extending vertically, and the counterweight (21) passes through the first through hole (11) and is mounted on the substrate (1). The portion of the substrate (1) placed inside the first through hole (11) is adapted to the size of the first through hole (11); Along the thickness direction of the substrate (1), the two ends of the counterweight (21) are respectively located on the symmetrical sides of the substrate (1).

3. The tension detection structure according to claim 1, characterized in that: The counterweight mechanism (2) also includes a slide rail (22), which extends vertically and is fixedly mounted on the base plate (1). The counterweight (21) includes: Slider (211) is slidably mounted on the slide rail (22); A counterweight (212) is detachably mounted on the slider (211) for contacting the strip (3).

4. The tension detection structure according to claim 1, characterized in that: The elastic element (5) is configured as a compression spring, which extends vertically.

5. The tension detection structure according to claim 1, characterized in that: It also includes a first hook structure (7), through which the elastic element (5) acts on the tension bar (4); The tension bar (4) has a second through hole (41) corresponding to the first hook structure (7).

6. The tension detection structure according to claim 1, characterized in that: It also includes a vertical drive member (8), and the elastic member (5) acts on the substrate (1) through the vertical drive member (8); The vertical drive member (8) includes a drive end (81) and an output end (82). The drive end (81) is fixedly disposed on the substrate (1), and the output end (82) is connected to the elastic member (5).

7. A tension detection structure according to claim 6, characterized in that: It also includes a second hook structure (9), through which the elastic element (5) is connected to the output end (82); The output end (82) is provided with a protruding structure (10) corresponding to the second hook structure (9).

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