Bending angle detection device for hydraulic support side guard plate

Abstract

The utility model discloses a bending angle detection device for a hydraulic support side guard plate. The bending angle detection device comprises a first detection plate and a second detection plate. The first detection plate comprises an upper bracket and a lower bracket which are integrally formed; the lower support is provided with a first hinge hole, and the upper support is provided with an arc-shaped groove. Two ends of the second detection plate are respectively provided with a second hinge hole and a third hinge hole; the aperture of the second hinge hole is equal to the width of the arc-shaped groove, and the aperture of the third hinge hole is equal to that of the first hinge hole; a pin B is sleeved with the third hinge hole and the first hinge hole in a penetrating mode, and the pin B is in interference fit with the third hinge hole and the first hinge hole. A pin A penetrates through the second hinge hole and the arc-shaped groove in a sleeved mode, and the pin A is in clearance fit with the second hinge hole and the arc-shaped groove. The second detection plate can rotate in the arc direction of the arc-shaped groove with the circle center of the first hinge hole as the circle center. According to the utility model, the angle of the hydraulic support side guard plate can be rapidly detected, and the product quality and the production efficiency of the side guard plate are improved.

Description

Technical Field

[0001] This utility model relates to the field of testing devices, and in particular to a bending angle testing device for the side guard plate of a hydraulic support. Background Technology

[0002] Side guard plates are structural components on hydraulic supports. They are divided into top beam side guard plates and shield beam side guard plates. Side guard plates are typically fixed on one side and movable on the other, arranged symmetrically. Their operation is controlled by side push rods, hydraulic cylinders, and springs. Traditional side guard plate manufacturing relies primarily on welding. This welding method is prone to deformation, making it difficult to guarantee the angle of the side guard plate, affecting product quality and subsequent assembly. To overcome the shortcomings of traditional welding, bending is used instead. Bending can reduce defects caused by welding and improve the forming accuracy and stability of the product. However, due to the springback or over-pressure of the steel plate during bending, side guard plate angle deviations often occur. During the production of hydraulic supports, regardless of whether welding or bending is used, the 90° angle between the two side guard plates will deviate. Generally, an angle greater than 90° will cause the dimensions of the side guard plate to exceed tolerances, failing to meet the design requirements. An angle that is too small (less than 87° between the two side guard plates) will interfere with the assembly of the top beam and shield beam, leading to rework and reduced production efficiency. Therefore, it is necessary to develop an effective bending detection device to quickly detect and evaluate the bending quality of side panels, thereby improving product quality and production efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rotatable ping-pong paddle that can drive the paddle to rotate through the rotation of the main shaft, allowing for quick one-handed switching of the paddle's striking surface.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A bending angle detection device for a hydraulic support side guard plate includes a detection device body, which includes a first detection plate and a second detection plate. The first detection plate includes an integrally formed upper support and a lower support, which form an angle of 45°-60°. The lower support has a first hinge hole, and the upper support has an arc-shaped groove, the center of which is located at the center of the first hinge hole. Arc-shaped portions A and B are respectively provided on both sides of the arc-shaped groove. The line A connecting the center of arc-shaped portion A and the center of the first hinge hole is in the vertical direction, and the line B connecting the center of arc-shaped portion B and the center of the first hinge hole is a connecting line. The angle between connecting line B and connecting line A is 3°. An arc-shaped portion C is provided at the end of the lower support, the radius of which is equal to the radius of the arc-shaped portion C. The bending radii of the side guard plates of the hydraulic support to be tested are equal; the two ends of the second testing plate are respectively provided with a second hinge hole and a third hinge hole, and the line connecting the centers of the second hinge hole and the third hinge hole is in the vertical direction; the diameter of the second hinge hole is equal to the width of the arc groove, and the diameter of the third hinge hole is equal to the diameter of the first hinge hole; the end of the second testing plate with the third hinge hole has an arc-shaped part D, the radius of the arc-shaped part D is not greater than the radius of the arc-shaped part C; a pin B is sleeved in the third hinge hole and the first hinge hole, and the pin B is interference-fitted with the third hinge hole and the first hinge hole; a pin A is sleeved in the second hinge hole and the arc groove, and the pin A is clearance-fitted with the second hinge hole and the arc groove; the second testing plate can rotate along the arc direction of the arc groove and with the center of the first hinge hole as the center.

[0006] Furthermore, in the above-mentioned utility model, the upper support and the lower support form a 45° angle.

[0007] Furthermore, in the above-described utility model, the second detection plate is provided with a notch.

[0008] Furthermore, in the above-mentioned utility model content, the thickness of both the first detection plate and the second detection plate is 10mm.

[0009] Furthermore, in the above-mentioned utility model, the radius of the arc-shaped portion D is equal to the radius of the arc-shaped portion C.

[0010] The beneficial effects of this utility model are: it can quickly detect the angle of the hydraulic support side plate, thereby improving the product quality and production efficiency of the side plate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the first detection plate of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the second detection plate of this utility model;

[0014] Figure 4 This is a schematic diagram of the arc-shaped groove structure of this utility model;

[0015] Figure 5 This is another structural schematic diagram of the present invention;

[0016] Figure 6 This is a schematic diagram of the cooperation between the present invention and the side guard plate of the hydraulic support.

[0017] In the figure, 1-Detection device body, 2-First detection plate, 3-Second detection plate, 4-Pin A, 5-Pin B, 2.1-Upper bracket, 2.2-Lower bracket, 2.3-First hinge hole, 2.4-Arc groove, 2.41-Arc part A, 2.42-Arc part B, 2.5-Connecting line A, 2.6-Connecting line B, 2.7-Arc part C, 3.1-Second hinge hole, 3.2-Third hinge hole, 3.3-Arc part D, 3.4-Groove. Detailed Implementation

[0018] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] Example:

[0021] A bending angle detection device for the side guard plate of a hydraulic support, see attached document. Figure 1 - Appendix Figure 4As shown, the device includes a detection device body 1, which includes a first detection plate 2 and a second detection plate 3. The first detection plate 2 includes an integrally formed upper support 2.1 and a lower support 2.2, which form an angle of 45°-60°. In this embodiment, the angle between the upper support 2.1 and the lower support 2.2 is 45°. The lower support 2.2 is provided with a first hinge hole 2.3, and the upper support 2.1 is provided with an arc-shaped groove 2.4, the center of which is located at the center of the first hinge hole 2.3; arc-shaped portions A2.41 and B2.42 are respectively provided on both sides of the arc-shaped groove 2.4, the line A2.5 connecting the center of the arc-shaped portion A2.41 and the center of the first hinge hole 2.3 is in the vertical direction, the line B2.6 connecting the center of the arc-shaped portion B2.42 and the center of the first hinge hole 2.3 is the line connecting the line B2.6 and the line A2.5, and the included angle between the line B2.6 and the line A2.5 is 3°; the end of the lower support 2.2 is provided with an arc-shaped portion C2.7, the radius of which is equal to the bending radius of the side guard plate of the hydraulic support to be tested.

[0022] The second detection plate 3 has a second hinge hole 3.1 and a third hinge hole 3.2 at its two ends, respectively. The line connecting the centers of the second hinge hole 3.1 and the third hinge hole 3.2 is in the vertical direction. The diameter of the second hinge hole 3.1 is equal to the width of the arc groove 2.4, and the diameter of the third hinge hole 3.2 is equal to the diameter of the first hinge hole 2.3. The end of the second detection plate 3 with the third hinge hole 3.2 has an arc-shaped part D3.3, and the radius of the arc-shaped part D3.3 is not greater than the radius of the arc-shaped part C2.7. In this embodiment, the radius of the arc-shaped part D3.3 is equal to the radius of the arc-shaped part C2.7.

[0023] A pin B5 is fitted into the third hinge hole 3.2 and the first hinge hole 2.3, with an interference fit between pin B5 and the third hinge hole 3.2 and the first hinge hole 2.3; a pin A4 is fitted into the second hinge hole 3.1 and the arc groove 2.4, with a clearance fit between pin A4 and the second hinge hole 3.1 and the arc groove 2.4; the second detection plate 3 is fitted onto the first detection plate 2 by pins A4 and B5, thus forming the detection device body 1. The second detection plate 3 can rotate along the arc direction of the arc groove 2.4 and with the center of the first hinge hole 2.3 as the center. Under normal conditions, please refer to the appendix. Figure 1 As shown, the lower supports 2.2 of the first detection plate 2 and the second detection plate 3 form a 90° angle. By rotating the second detection plate 3 along the arc groove 2.4, the second detection plate 3 can form an 87° angle with the lower support 2.2 of the first detection plate 2 (as shown in the attached figure). Figure 5(As shown). It should be noted that, due to the interference fit between pin B5 and the third hinge hole 3.2 and the first hinge hole 2.3, an external force needs to be applied to the second detection plate 3 to rotate it. Without external force, the second detection plate 3 remains relatively stable with the first detection plate 2.

[0024] Specifically, regarding the testing process, please refer to the appendix. Figure 6 As shown, the second detection plate 3 is rotated to the leftmost position of the arc groove 2.4, so that the lower supports 2.2 of the first detection plate 2 and the second detection plate 3 form a 90° angle. Then, the detection device body 1 is placed on the hydraulic support side guard plate, and the lower support 2.2 of the first detection plate 2 is attached to the side plate of the side guard plate. Since the radius of the arc portion C2.7 is equal to the bending radius of the hydraulic support side guard plate to be tested, if the two side plates of the hydraulic support side guard plate remain perpendicular, the arc portion C2.7 will fit against the bending point of the hydraulic support side guard plate, and the second detection plate 3 will also fit against the side plate of the side guard plate. Therefore, during the testing process, if there is a gap between the side edge of the side guard plate and the second detection plate 3 when the arc portion C2.7 is attached to the bending point of the side guard plate, it indicates that the angle between the two side plates of the side guard plate is greater than 90°, and the side guard plate is directly judged to be unqualified and needs to be re-formed. Furthermore, when the curved section C2.7 approaches the bend of the side guard plate, if the top edge of the side guard plate contacts the second detection plate 3 first, it indicates that the included angle between the two side guard plates is less than 90°. At this point, the second detection plate 3 is rotated. If the side guard plate can fit against the second detection plate 3 during rotation, it indicates that the included angle between the two side guard plates is between 87° and 90°, indicating that the side guard plate is qualified. If the side guard plate still cannot fit against the second detection plate 3 during rotation, it indicates that the included angle between the two side guard plates is less than 87°, and the side guard plate is deemed unqualified.

[0025] In the above embodiments, the thickness of the first detection plate 2 and the second detection plate 3 is both set to 10mm, and the second detection plate 3 is provided with a notch 3.4 to reduce the weight of the entire detection device body 1 and facilitate operation.

[0026] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A bending angle detection device for the side guard plate of a hydraulic support, characterized in that, The device includes a detection device body, which includes a first detection plate and a second detection plate. The first detection plate includes an integrally formed upper support and a lower support, which form an angle of 45°-60°. The lower support is provided with a first hinge hole, and the upper support is provided with an arc-shaped groove, the center of which is located at the center of the first hinge hole. Arc-shaped portions A and B are respectively provided on both sides of the arc-shaped groove. The line A connecting the center of arc-shaped portion A and the center of the first hinge hole is in the vertical direction, and the line B connecting the center of arc-shaped portion B and the center of the first hinge hole is a connecting line. The angle between connecting line B and connecting line A is 3°. An arc-shaped portion C is provided at the end of the lower support, and the radius of the arc-shaped portion C is equal to the bending radius of the side guard plate of the hydraulic support to be tested. The second detection plate has a second hinge hole and a third hinge hole at its two ends, respectively, and the line connecting the centers of the second and third hinge holes is in the vertical direction. The diameter of the second hinge hole is equal to the width of the arc groove, and the diameter of the third hinge hole is equal to the diameter of the first hinge hole. The end of the second detection plate with the third hinge hole has an arc-shaped portion D, the radius of which is not greater than the radius of the arc-shaped portion C. A pin B is fitted inside the third and first hinge holes, and the pin B has an interference fit with the third and first hinge holes. A pin A is fitted inside the second hinge hole and the arc groove, and the pin A has a clearance fit with the second hinge hole and the arc groove. The second detection plate can rotate along the arc direction of the arc groove and with the center of the first hinge hole as the center.

2. The bending angle detection device for the side guard plate of a hydraulic support according to claim 1, characterized in that, The upper and lower supports form a 45° angle.

3. The bending angle detection device for the side guard plate of a hydraulic support according to claim 1, characterized in that, The second detection plate has a notch.

4. The bending angle detection device for the side guard plate of a hydraulic support according to claim 1, characterized in that, The thickness of both the first and second detection plates is 10mm.

5. A bending angle detection device for a hydraulic support side guard plate according to claim 1, characterized in that, The radius of the arc-shaped part D is equal to the radius of the arc-shaped part C.

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