Belt bending durability test structure

Abstract

The utility model relates to the technical field of belt testing, in particular to a belt bending durability testing structure. The belt bending durability testing structure comprises a supporting frame, the supporting frame comprises a connecting arm, a first support and a second support, the first support and the second support are parallel to each other and are in an L shape, and the connecting arm is fixed between the lower portion of the first support and the lower portion of the second support; and the rotary driving part is arranged above the first support. The beneficial effects of the utility model are that the test belt is sleeved outside the first belt pulley, the second belt pulley, the third belt pulley and the fourth belt pulley to form a quadrilateral bending path, the quadrilateral bending path is utilized to reflect the bending situation encountered when a human body moves, and meanwhile, the first belt pulley is driven to rotate through the rotation driving member, so that the bending situation is reflected. The test belt is dragged to run, and the first friction wheel is arranged on one side of the test belt and is in contact with the running belt, so that the friction condition of the belt with a fastener or clothes in the conventional wearing process is simulated.

Description

Technical Field

[0001] This utility model relates to the field of belt testing technology, specifically a belt bending durability testing structure. Background Technology

[0002] In the existing field of belt testing equipment, common testing methods mainly focus on the life assessment of industrial transmission belts, that is, judging their durability by simulating the service life of the belt in mechanical operation. However, for leather belts worn by the human body (hereinafter referred to as "clothing belts"), their usage scenarios and stress characteristics are significantly different from those of industrial belts. During daily wear, clothing belts mainly bear the stretching, bending, and friction between the human body and clothing, fasteners, and other components caused by human activities. Due to the diversity of human movements, such as bending over, sitting, or walking, clothing belts need to maintain durability under bending at different angles. At the same time, due to repeated contact with fasteners or clothing, their surface abrasion resistance also becomes a key performance indicator.

[0003] Existing testing equipment is mostly designed for the continuous operation of industrial belts, paying less attention to the performance changes of clothing belts caused by bending and friction during wear. For example, there is often a lack of specialized testing methods for the durability of clothing belts under normal or taut conditions, their fatigue resistance at different bending angles, and their abrasion resistance when rubbed against clothing such as fasteners. This makes the assessment of clothing belt durability incomplete and unable to accurately reflect their performance in real-world wearing scenarios. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a belt bending durability test structure to solve the problem that the evaluation of the durability of clothing belts is not comprehensive enough and cannot accurately reflect their performance in actual wearing scenarios.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A belt bending durability test structure, comprising:

[0006] A support frame, the support frame including a connecting arm and two parallel, L-shaped first and second supports, the connecting arm being fixed between the lower parts of the first and second supports;

[0007] A rotary drive component is disposed above the first support;

[0008] The first pulley is disposed on the drive end of the rotary drive component;

[0009] The second pulley is rotatably connected to the side of the connecting arm near the first support via a rotating shaft;

[0010] A linear module, wherein the linear module is disposed between the first support and the second support above;

[0011] The third pulley is rotatably connected to the moving end of the linear module via a rotating shaft;

[0012] The fourth pulley is rotatably connected to the side of the connecting arm near the second support via a rotating shaft;

[0013] A test belt, which is fitted over the first pulley, second pulley, third pulley, and fourth pulley.

[0014] A friction testing assembly includes a first friction wheel and a second friction wheel located on one side of a test belt, wherein the first friction wheel is detachably connected to a first support and the second friction wheel is detachably connected to a second support.

[0015] The beneficial effects of this utility model are:

[0016] 1) The test belt is placed on the outside of the first pulley, the second pulley, the third pulley and the fourth pulley to form a quadrilateral bending path. The quadrilateral bending path is used to represent the bending scenario encountered by the human body during activities. At the same time, the first pulley is driven to rotate by the rotary drive component, dragging the test belt. A first friction wheel is set on one side of the test belt, so that the first friction wheel contacts the running belt to simulate the friction between the belt and the fastener or clothing during normal wear.

[0017] 2) In addition, a second friction wheel is installed on the second support. The moving end of the linear module drives the third pulley to move away from the first pulley in a straight line, thereby applying a controllable tensile force to the test belt. As the third pulley moves, the test belt is gradually stretched to a taut state and contacts the outer edge of the second friction wheel, realizing the friction performance test of the belt under high tension. This realistically simulates the tension scenario that the belt may encounter in actual wear. In summary, this device obtains friction data of the belt under both normal and taut states through the synergistic effect of the first and second friction wheels, providing a reliable basis for the analysis of the belt's wear resistance and tensile strength. Moreover, the first and second friction wheels are detachable, allowing users to choose whether to install the friction wheels according to their testing needs, thus flexibly switching the testing mode. When the first friction wheel is installed, the device can focus on the friction between the belt and fasteners or clothing during normal wear; when the second friction wheel is installed, the friction performance of the belt under taut state can be further evaluated, enhancing the flexibility of use and meeting the needs of different testing scenarios.

[0018] Based on the above technical solution, the present invention can be further improved as follows.

[0019] Furthermore, the friction testing assembly also includes a first shaft pin, a second shaft pin, a slot, and a locking block. The slot is formed inside the first friction wheel and the second friction wheel, and the locking block is fixed to the outside of the first shaft pin and the second shaft pin.

[0020] Furthermore, one end of the first shaft pin is fixed on the first support, one end of the second shaft pin is fixed on the second support, the groove of the friction wheel is sleeved outside the locking block of the first shaft pin, and the groove of the second friction wheel is sleeved outside the locking block of the second shaft pin.

[0021] The beneficial effect of adopting the above-mentioned further solution is that when the test belt rubs against the first friction wheel and the second friction wheel, the cooperation between the locking block and the locking groove can effectively limit the rotation of the first friction wheel and the second friction wheel, thereby ensuring that a stable friction force is generated between the test belt and the friction wheel, and preventing the friction wheel from rotating with the belt movement.

[0022] Furthermore, the rotary drive component includes a first motor, which is fixed on a first support, and the first pulley is sleeved on the drive end of the first motor.

[0023] The advantage of adopting the above-mentioned further solution is that the first motor drives the first pulley to rotate, thereby dragging the test belt.

[0024] Furthermore, the linear module includes a support plate, a lead screw, a nut, a guide rail, a second motor, and a slider. One side of the support plate is fixed on a second support, the second motor is fixed on the support plate, and one end of the lead screw is fixed on the drive end of the second motor.

[0025] Furthermore, the nut is sleeved on the outside of the lead screw, the guide rail is fixed on the bearing plate, the slider slides outside the guide rail and is connected to the nut, and the second pulley is rotatably connected to the slider through a rotating shaft.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the screw is driven to rotate by the drive end of the second motor. Due to the interaction between the threads, the nut causes the slider to slide on the guide rail, which in turn causes the third pulley to move away from the first pulley in a straight line. This applies a controllable tensile force to the test belt. As the third pulley is displaced, the test belt is gradually stretched to a taut state and contacts the outer edge of the second friction wheel, thus realizing the friction performance test of the belt under high tension. This realistically simulates the tension scenario that the belt may encounter in actual wear. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2This is a schematic diagram of the overall structure of the present invention from another perspective;

[0029] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0030] Figure 4 This is a front view of the first friction wheel in this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 10. Support frame; 101. First support; 102. Second support; 103. Connecting arm; 20. Rotary drive component; 30. First pulley; 40. Second pulley; 50. Third pulley; 60. Fourth pulley; 70. Linear module; 701. Second motor; 702. Bearing plate; 703. Lead screw; 704. Nut; 705. Guide rail; 706. Slider; 80. Test belt; 90. Friction test assembly; 901. First friction wheel; 902. Second friction wheel; 903. Slot; 904. Block; 905. First axle pin; 906. Second axle pin. Detailed Implementation

[0033] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0034] In the existing field of belt testing equipment, common testing methods mainly focus on the life assessment of industrial transmission belts, that is, judging their durability by simulating the service life of the belt in mechanical operation. However, for leather belts worn by the human body (hereinafter referred to as "clothing belts"), their usage scenarios and stress characteristics are significantly different from those of industrial belts. During daily wear, clothing belts mainly bear the stretching, bending, and friction between the human body and clothing, fasteners, and other components caused by human activities. Due to the diversity of human movements, such as bending over, sitting, or walking, clothing belts need to maintain durability under bending at different angles. At the same time, due to repeated contact with fasteners or clothing, their surface abrasion resistance also becomes a key performance indicator.

[0035] Existing testing equipment is mostly designed for the continuous operation of industrial belts, paying less attention to the performance changes of clothing belts caused by bending and friction during wear. For example, there is often a lack of specialized testing methods for the durability of clothing belts under normal or taut conditions, their fatigue resistance at different bending angles, and their abrasion resistance when rubbed against clothing such as fasteners. This makes the assessment of clothing belt durability incomplete and unable to accurately reflect their performance in actual wearing scenarios. To address these issues, the inventor has proposed a belt bending durability testing structure.

[0036] The present invention provides the following preferred embodiments.

[0037] like Figures 1-4 As shown, a belt bending durability test structure includes:

[0038] The support frame 10 includes a connecting arm 103 and two parallel L-shaped first supports 101 and second supports 102. The connecting arm 103 is fixed between the lower parts of the first supports 101 and the second supports 102.

[0039] Rotary drive component 20 is disposed above the first support 101;

[0040] The first pulley 30 is disposed on the drive end of the rotary drive component 20;

[0041] The second pulley 40 is rotatably connected to the side of the connecting arm 103 near the first support 101 via a rotating shaft;

[0042] Linear module 70 is disposed between the first support 101 and the second support 102.

[0043] The third pulley 50 is rotatably connected to the moving end of the linear module 70 via a rotating shaft;

[0044] The fourth pulley 60 is rotatably connected to the side of the connecting arm 103 near the second support 102 via a rotating shaft;

[0045] Test belt 80 is fitted over the first pulley 30, the second pulley 40, the third pulley 50, and the fourth pulley 60.

[0046] Friction test assembly 90 includes a first friction wheel 901 and a second friction wheel 902 located on one side of the test belt 80, and the first friction wheel 901 is detachably connected to the first support 101, and the second friction wheel 902 is detachably connected to the second support 102.

[0047] The test belt 80 is fitted over the first pulley 30, the second pulley 40, the third pulley 50 and the fourth pulley 60 to form a quadrilateral bending path. The quadrilateral bending path is used to represent the bending scenario encountered by the human body during activities. At the same time, the first pulley 30 is driven to rotate by the rotation drive component 20, which drags the test belt 80. A first friction wheel 901 is set on one side of the test belt 80 so that the first friction wheel 901 contacts the running belt to simulate the friction between the belt and the fastener or clothing during normal wear.

[0048] Furthermore, a second friction wheel 902 is mounted on the second support 102. The moving end of the linear module 70 drives the third pulley 50 to move away from the first pulley 30 in a straight line, thereby applying a controllable tensile force to the test belt 80. As the third pulley 50 displaces, the test belt 80 is gradually stretched to a taut state and contacts the outer edge of the second friction wheel 902, thus achieving a test of the belt's friction performance under high tension. This realistically simulates the tension scenario that a belt might encounter during actual wear. In summary, this device, through the synergistic action of the first friction wheel 901 and the second friction wheel 902… The device acquires friction data for the belt under both normal and taut conditions, providing a reliable basis for analyzing the belt's abrasion resistance and tensile strength. Furthermore, the first friction wheel 901 and the second friction wheel 902 are detachable, allowing users to choose whether to install them based on testing needs, thus flexibly switching testing modes. When the first friction wheel 901 is installed, the device focuses on the friction between the belt and fasteners or clothing during normal wear; when the second friction wheel 902 is installed, the friction performance of the belt under taut conditions can be further evaluated, enhancing usability and meeting the needs of different testing scenarios.

[0049] In this embodiment, as Figures 1-4 As shown, the friction test assembly 90 also includes a first shaft pin 905, a second shaft pin 906, a slot 903, and a locking block 904. The slot 903 is formed inside the first friction wheel 901 and the second friction wheel 902, and the locking block 904 is fixed to the outside of the first shaft pin 905 and the second shaft pin 906.

[0050] When the test belt 80 rubs against the first friction wheel 901 and the second friction wheel 902, the cooperation between the locking block 904 and the locking groove 903 can effectively limit the rotation of the first friction wheel 901 and the second friction wheel 902, thereby ensuring that a stable frictional force is generated between the test belt 80 and the friction wheel, and preventing the friction wheel from rotating with the belt movement.

[0051] In this embodiment, as Figures 1-4 As shown, the rotary drive component 20 includes a first motor, which is fixed on the first support 101. The first pulley 30 is sleeved on the drive end of the first motor. The first motor drives the first pulley 30 to rotate, thereby dragging the test belt 80 to run.

[0052] In this embodiment, as Figures 1-4As shown, the linear module 70 includes a support plate 702, a lead screw 703, a nut 704, a guide rail 705, a second motor 701, and a slider 706. One side of the support plate 702 is fixed on the second support 102, the second motor 701 is fixed on the support plate 702, one end of the lead screw 703 is fixed on the drive end of the second motor 701, the nut 704 is sleeved on the outside of the lead screw 703, the guide rail 705 is fixed on the support plate 702, the slider 706 slides on the outside of the guide rail 705, and the slider 706 is connected to the nut 704. The second pulley 40 is rotatably connected to the slider 706 through a rotating shaft.

[0053] The second motor 701 drives the lead screw 703 to rotate. Due to the interaction between the threads, the nut 704 causes the slider 706 to slide on the guide rail 705, which in turn causes the third pulley 50 to move away from the first pulley 30 in a straight line. This applies a controllable tensile force to the test belt 80. As the third pulley 50 moves, the test belt 80 is gradually stretched to a taut state, and the angle of the test belt wrapped around the outer edge of the third pulley also changes. Then, it contacts the outer edge of the second friction wheel 902, thus realizing the friction performance test of the belt under high tension, which truly simulates the tension scenario that the belt may encounter in actual wear.

[0054] The specific working process of this utility model is as follows:

[0055] (1) Test the friction of regular wear

[0056] First, the test belt 80 is placed around the first pulley 30, the second pulley 40, the third pulley 50, and the fourth pulley 60 to form a quadrilateral bending path. This quadrilateral bending path represents the bending scenario encountered by the human body during activity. At the same time, the first motor drives the first pulley 30 to rotate, dragging the test belt 80 to rotate. The first friction wheel 901 is then engaged with the locking block 904 outside the first shaft pin 905 through the locking groove 903, allowing the first friction wheel 901 to contact the running belt and simulate the friction between the belt and fasteners or clothing during normal wear.

[0057] (2) Test the friction under tension.

[0058] The second friction wheel 902 is inserted into the locking block 904 outside the second shaft pin 906 through the locking groove 903. Then, the lead screw 703 is driven to rotate by the drive end of the second motor 701. Due to the interaction between the threads, the nut 704 causes the slider 706 to slide on the guide rail 705, which in turn causes the third pulley 50 to move away from the first pulley 30 in a straight line, thereby applying a controllable tensile force to the test belt 80. As the third pulley 50 is displaced, the test belt 80 is gradually stretched to a taut state and contacts the outer edge of the second friction wheel 902, realizing the friction performance test of the belt under high tension and taut state, which truly simulates the tension scenario that the belt may encounter in actual wear.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A belt bending durability test structure, characterized in that, include: A support frame, the support frame including a connecting arm and two parallel, L-shaped first and second supports, the connecting arm being fixed between the lower parts of the first and second supports; A rotary drive component is disposed above the first support; The first pulley is disposed on the drive end of the rotary drive component; The second pulley is rotatably connected to the side of the connecting arm near the first support via a rotating shaft; A linear module, wherein the linear module is disposed between the first support and the second support above; The third pulley is rotatably connected to the moving end of the linear module via a rotating shaft; The fourth pulley is rotatably connected to the side of the connecting arm near the second support via a rotating shaft; A test belt, which is fitted over the first pulley, second pulley, third pulley, and fourth pulley; A friction test assembly includes a first friction wheel and a second friction wheel located on one side of a test belt, wherein the first friction wheel is detachably connected to a first support and the second friction wheel is detachably connected to a second support.

2. The belt bending durability test structure according to claim 1, characterized in that, The friction testing assembly also includes a first shaft pin, a second shaft pin, a slot, and a locking block. The slot is formed inside the first friction wheel and the second friction wheel, and the locking block is fixed to the outside of the first shaft pin and the second shaft pin.

3. The belt bending durability test structure according to claim 2, characterized in that, One end of the first shaft pin is fixed on the first support, and one end of the second shaft pin is fixed on the second support. The groove of the friction wheel is sleeved outside the locking block of the first shaft pin, and the groove of the second friction wheel is sleeved outside the locking block of the second shaft pin.

4. The belt bending durability test structure according to claim 1, characterized in that, The rotary drive component includes a first motor, which is fixed on a first support, and the first pulley is sleeved on the drive end of the first motor.

5. The belt bending durability test structure according to claim 1, characterized in that, The linear module includes a support plate, a lead screw, a nut, a guide rail, a second motor, and a slider. One side of the support plate is fixed on a second support, the second motor is fixed on the support plate, and one end of the lead screw is fixed on the drive end of the second motor.

6. The belt bending durability test structure according to claim 5, characterized in that, The nut is sleeved on the outside of the lead screw, the guide rail is fixed on the bearing plate, the slider slides outside the guide rail and is connected to the nut, and the second pulley is rotatably connected to the slider through a rotating shaft.

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