A belt tension testing mechanism

Abstract

This utility model discloses a belt tension testing mechanism, including two clamps and a tension sensor connected to the clamps. The clamps include a mounting block, a wedge-shaped fixing groove on one side of the mounting block, a wedge-shaped fixing block that mates with the wedge-shaped fixing groove inside the wedge-shaped fixing groove, a threaded hole communicating with the wedge-shaped fixing groove inside the mounting block, a threaded rod threadedly connected inside the threaded hole, a driving ball at one end of the threaded rod near the wedge-shaped fixing groove, and a driving inclined surface on the side wall of the wedge-shaped fixing block that mates with the driving ball. By rotating the threaded rod, the ball can be driven to roll on the driving inclined surface, thereby driving the wedge-shaped fixing block to move inside the wedge-shaped fixing groove, so that the wedge-shaped fixing block clamps and fixes the belt inside the wedge-shaped fixing groove, clamping it firmly and preventing the belt from loosening during the tension test.

Description

Technical Field

[0001] This utility model relates to the field of belt tension testing technology, and in particular to a belt tension testing mechanism. Background Technology

[0002] Belts are flexible, strip-shaped components used for mechanical transmission or material conveying. They are widely used in various mechanical equipment and are mainly divided into two categories: conveyor belts and transport belts. Before using a belt, it is necessary to know its maximum tensile strength to avoid excessive tension that could lead to belt breakage. Current belt tensile testing processes require fixing both ends of the belt and then applying a certain tension. The tensile strength measured when the belt breaks is considered the maximum tensile strength the belt can withstand. However, during testing, the belt frequently detaches from the testing mechanism. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a belt tension testing mechanism to solve the technical problem that belts often fall off the testing mechanism during the testing process in the prior art.

[0004] To achieve the above technical objectives, the present invention provides a belt tension testing mechanism, comprising two clamps and a tension sensor connected to the clamps. Each clamp includes a mounting block, a wedge-shaped fixing groove on one side of the mounting block, a wedge-shaped fixing block that mates with the wedge-shaped fixing groove inside the wedge-shaped fixing groove, a threaded hole communicating with the wedge-shaped fixing groove inside the mounting block, a threaded rod threadedly connected inside the threaded hole, a driving ball at one end of the threaded rod near the wedge-shaped fixing groove, and a driving inclined surface on the side wall of the wedge-shaped fixing block that mates with the driving ball. By rotating the threaded rod, the ball can be driven to roll on the driving inclined surface, thereby driving the wedge-shaped fixing block to move inside the wedge-shaped fixing groove, so that the wedge-shaped fixing block clamps and fixes the belt inside the wedge-shaped fixing groove.

[0005] Furthermore, the wedge-shaped fixing block has a strip-shaped limiting block on its side wall, and the wedge-shaped fixing groove has a strip-shaped limiting groove that cooperates with the limiting block on its side wall.

[0006] Furthermore, the clamping surface of the wedge-shaped fixing groove is provided with a first serration, and the clamping surface of the wedge-shaped fixing block is provided with a second serration.

[0007] Furthermore, the threaded rod is made of bolts.

[0008] Furthermore, the end of the threaded rod away from the wedge-shaped fixing groove extends from inside the threaded hole and is fitted with a handle.

[0009] Furthermore, both the wedge-shaped fixing groove and the wedge-shaped fixing block have right-angled trapezoidal cross sections.

[0010] The beneficial effects of this utility model include: This utility model provides a tensile testing mechanism, in which rotating the threaded rod can drive the ball to roll on the driving inclined surface, thereby driving the wedge-shaped fixing block to move inside the wedge-shaped fixing groove, so that the wedge-shaped fixing block clamps and fixes the belt inside the wedge-shaped fixing groove, which is firmly clamped and can prevent the belt from loosening during tensile testing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the tensile testing mechanism according to an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the clamp structure according to an embodiment of the present utility model;

[0013] Figure 3 This is a cross-sectional view of the fixture according to an embodiment of the present utility model;

[0014] In the diagram: 1. Fixture; 11. Mounting block; 111. Wedge-shaped fixing groove; 112. Threaded hole; 113. Strip-shaped limiting groove; 114. First sawtooth; 12. Wedge-shaped fixing block; 121. Driving inclined surface; 122. Strip-shaped limiting block; 123. Second sawtooth; 13. Threaded rod; 131. Handle; 14. Driving ball; 2. Tension sensor. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] This utility model embodiment provides a belt tension testing mechanism, such as... Figure 1 As shown, it includes two clamps 1 and a tension sensor 2 connected to the clamps 1. When performing a tension test on the belt, the two clamps 1 can clamp the two ends of the belt respectively. The tension sensor 2 can detect the tension on the belt. At the same time, there can be one or two tension sensors 2. When there is one tension sensor 2, the tension sensor 2 is connected to one of the clamps 1. When there are two tension sensors 2, the two tension sensors 2 are connected to the two clamps 1 respectively.

[0017] In this embodiment, as Figure 2-3As shown, the fixture 1 includes a mounting block 11. A wedge-shaped fixing groove 111 is provided on one side of the mounting block 11. A wedge-shaped fixing block 12 that mates with the wedge-shaped fixing groove 111 is provided inside the wedge-shaped fixing groove 111. A threaded hole 112 that communicates with the wedge-shaped fixing groove 111 is provided inside the mounting block 11. A threaded rod 13 is threadedly connected inside the threaded hole 112. A drive ball 14 is provided at one end of the threaded rod 13 near the wedge-shaped fixing groove 111. A drive inclined surface 121 that mates with the drive ball 14 is provided on the side wall of the wedge-shaped fixing block 12. By rotating the threaded rod 13, the ball 14 can be driven to roll on the drive inclined surface 121, thereby driving the wedge-shaped fixing block 12 to move inside the wedge-shaped fixing groove 111, so that the wedge-shaped fixing block 12 clamps and fixes the belt inside the wedge-shaped fixing groove 111. The clamping is firm and can prevent the belt from loosening during tensile testing.

[0018] It should be noted that the cross-sections of both the wedge-shaped fixing groove 111 and the wedge-shaped fixing block 12 are right-angled trapezoids. At the same time, the two right-angled surfaces of the wedge-shaped fixing groove 111 and the wedge-shaped fixing block 12 are clamping surfaces. When fixing the belt, the belt is placed between the clamping surfaces of the wedge-shaped fixing groove 111 and the wedge-shaped fixing block 12. Meanwhile, the driving inclined surface 121 is set on the inclined surface of the wedge-shaped fixing block 12. The inclination direction of the driving inclined surface 121 is opposite to that of the inclined surface of the wedge-shaped fixing block 12. When the belt is subjected to a tensile test, the belt can drag the wedge-shaped fixing block 12 to move inside the wedge-shaped fixing groove 111 under the action of tension, so that the belt is more firmly clamped and fixed between the clamping surfaces of the wedge-shaped fixing groove 111 and the wedge-shaped fixing block 13.

[0019] In this embodiment, the wedge-shaped fixing block 12 has a strip-shaped limiting block 122 on its side wall, and the wedge-shaped fixing groove 111 has a strip-shaped limiting groove 113 that cooperates with the strip-shaped limiting block 122 on its side wall. The strip-shaped limiting block 122 is movably disposed inside the strip-shaped limiting groove 113. By cooperating with the strip-shaped limiting groove 113, the wedge-shaped fixing block 12 can be restricted inside the wedge-shaped fixing groove 111, thereby making the wedge-shaped fixing block 12 more firmly fix the belt.

[0020] It should be noted that the strip-shaped limiting block 131 is provided on the inclined surface of the wedge-shaped fixing block 13, and the strip-shaped limiting groove 123 is provided on the inclined surface of the wedge-shaped fixing groove 111. At the same time, both ends of the wedge-shaped fixing groove 111 are provided with openings. The opening at one end of the wedge-shaped fixing groove 111 allows the belt to pass into the wedge-shaped fixing groove 111, while the opening at the other end of the wedge-shaped fixing groove 111 allows the strip-shaped limiting block 122 to be placed inside the strip-shaped limiting groove 113, thereby allowing the wedge-shaped fixing block 12 to be placed inside the wedge-shaped fixing groove 111.

[0021] In this embodiment, the clamping surface of the wedge-shaped fixing groove 111 is provided with a first serration 114, and the clamping surface of the wedge-shaped fixing block 12 is provided with a second serration 123. The first serration 114 and the second serration 123 can increase the frictional resistance between the clamping surfaces of the wedge-shaped fixing groove 111 and the wedge-shaped fixing block 12 and the two sides of the belt, thereby clamping the belt more firmly.

[0022] In this embodiment, the threaded rod 13 is either a bolt or a screw. In order to facilitate the rotation of the threaded rod 13, one end of the threaded rod 13 extends out of the threaded hole 112 and is equipped with a handle 131. The handle 131 is a straight line or a cross shape.

[0023] Specific principle: When fixing the belt, one end of the belt is placed between the wedge-shaped fixing groove 111 and the clamping surface of the wedge-shaped fixing block 12 of one of the clamps 1. By rotating the threaded rod 13, the ball 14 can be driven to roll on the driving inclined surface 121, thereby driving the wedge-shaped fixing block 12 to move inside the wedge-shaped fixing groove 111, so that the belt is clamped and fixed between the wedge-shaped fixing groove 111 and the clamping surface of the wedge-shaped fixing block 12. The other end of the belt is fixed to another clamp 1 in the same way, so that both ends of the belt can be firmly fixed to the two clamps 1. The clamping is firm and can prevent the belt from loosening during the tensile test. When the tensile test is performed, the tensile force borne by the belt can be detected by the tensile force sensor 2. When the belt is broken, the tensile force detected by the tensile force sensor 2 is the maximum tensile force that the belt can withstand.

[0024] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A belt tension testing mechanism comprising two clamps (1) and a tension sensor (2) connected to the clamps (1), characterized in that, The clamp (1) includes a mounting block (11), one side of which is provided with a wedge-shaped fixing groove (111). Inside the wedge-shaped fixing groove (111) is a wedge-shaped fixing block (12) that mates with the wedge-shaped fixing groove (111). Inside the mounting block (11) is a threaded hole (112) that communicates with the wedge-shaped fixing groove (111). Inside the threaded hole (112) is a threaded rod (13) that is threadedly connected to the threaded rod (13) near the wedge-shaped fixing groove. One end of the groove (111) is provided with a driving ball (14), and the side wall of the wedge-shaped fixing block (12) is provided with a driving inclined surface (121) that cooperates with the driving ball (14). By rotating the threaded rod (13), the ball (14) can be driven to roll on the driving inclined surface (121), thereby driving the wedge-shaped fixing block (12) to move inside the wedge-shaped fixing groove (111) so that the wedge-shaped fixing block (12) clamps and fixes the belt inside the wedge-shaped fixing groove (111).

2. The belt tension testing mechanism of claim 1, wherein, The wedge-shaped fixing block (12) has a strip-shaped limiting block (122) on its side wall, and the wedge-shaped fixing groove (111) has a strip-shaped limiting groove (113) on its side wall that cooperates with the strip-shaped limiting block (122).

3. The belt tension testing mechanism of claim 1, wherein, The clamping surface of the wedge-shaped fixing groove (111) is provided with a first serration (114), and the clamping surface of the wedge-shaped fixing block (12) is provided with a second serration (123).

4. The belt tension testing mechanism of claim 1, wherein, The threaded rod (13) is made of bolt.

5. The belt tension testing mechanism of claim 1, wherein, The threaded rod (13) extends from the inside of the threaded hole (112) at the end away from the wedge-shaped fixing groove (111) and is fitted with a handle (131).

6. The belt tension testing mechanism of claim 1, wherein, The cross-sections of the wedge-shaped fixing groove (111) and the wedge-shaped fixing block (12) are both right-angled trapezoids.

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