An ultra-high molecular weight polyethylene fiber rope strength detection device

Abstract

An ultra-high molecular weight polyethylene fiber rope strength detection device, including pressure sensor, the outside of pressure sensor is fixedly installed with guide frame, the guide frame is slidably installed with nut, the guide frame and the nut are all fixedly installed with rope clamp, the inside of nut is screwedly installed with threaded rod, and the one end of threaded rod is fixedly connected with knob. The outer end of knob is fixedly connected with first spherical block. The rope clamp is clamped and fixed on the target ultra-high molecular weight polyethylene fiber rope, then the threaded rod is screwed, the threaded rod extrudes the pressure sensor, the threaded rod pushes out the nut outward, the nut pulls out the rope clamp outward, the rope clamp further acts on the target ultra-high molecular weight polyethylene fiber rope, so that the rope clamp further clamps and fixes the target ultra-high molecular weight polyethylene fiber rope, the stress data is acquired through the pressure of threaded rod to pressure sensor, and the target ultra-high molecular weight polyethylene fiber rope is detected through simple structure, which is convenient to carry and use.

Description

Technical Field

[0001] This utility model belongs to the field of fiber rope strength testing technology, and in particular relates to a device for testing the strength of ultra-high molecular weight polyethylene fiber rope. Background Technology

[0002] Fiber rope strength testing is a crucial step in assessing the load-bearing capacity of fiber ropes and ensuring safe use. It is typically conducted around core strength indicators and in conjunction with actual application scenarios: before testing, representative samples need to be selected. First, obvious damage, fuzzing, and other defects are eliminated through visual inspection. Then, the core tensile strength test is carried out using a universal testing machine. The two ends of the sample are fixed on the fixture, and axial tension is applied at a constant rate. The data of the entire process from the rope being stressed to breaking are recorded to obtain key indicators such as maximum breaking tensile force and breaking elongation.

[0003] While existing tensile testing equipment can detect a wide variety of targets, it is bulky and difficult to carry. Furthermore, since ropes are designed for winding and fixing, they do not require complex clamping structures. As a result, conventional tensile testing equipment is not very practical for testing the strength of ultra-high molecular weight polyethylene fiber ropes.

[0004] To address this issue, we propose a device for testing the strength of ultra-high molecular weight polyethylene fiber ropes. Utility Model Content

[0005] The purpose of this invention is to address the problem that conventional tensile testing equipment has low practicality in testing the strength of ultra-high molecular weight polyethylene fiber ropes, and to propose an ultra-high molecular weight polyethylene fiber rope strength testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A device for testing the strength of ultra-high molecular weight polyethylene (UHMWPE) fiber rope includes a pressure sensor. A guide frame is fixedly mounted externally to the pressure sensor, and a nut is slidably mounted on the guide frame. Rope clamps are fixedly mounted on both the guide frame and the nut. A threaded rod is threaded internally onto the nut, and a knob is fixedly connected to one end of the threaded rod. The target UHMWPE fiber rope is gently wound around the rope clamp at least two turns, with the rope end secured within the clamp. After both ends of the target UHMWPE fiber rope are wound, the rope ends are pulled to tighten the rope clamp, thus securing the target UHMWPE fiber rope. The threaded rod is then screwed on, compressing the pressure sensor and pushing the nut outwards. This causes the nut to pull the rope clamp outwards, further tightening the rope clamp against the target UHMWPE fiber rope. Force data is obtained through the pressure exerted on the pressure sensor by the threaded rod. This simple structure enables the testing of target UHMWPE fiber rope and is convenient to carry and use.

[0007] Preferably, a first spherical block is fixedly connected to the outer end of the knob. The first spherical block increases the contact surface with the hand, preventing the knob from puncturing the hand.

[0008] Preferably, the guide frame includes a frame body with a guide groove, a pressure sensor is fixedly installed on the side of the frame body, and a handle is fixedly connected to the outer end of the frame body. The guide groove guides the nut to slide.

[0009] Preferably, a second spherical block is fixedly connected to the outer end of the frame. The second spherical block increases the contact area with the hand, preventing the handle from poking the hand.

[0010] Preferably, the nut includes a nut body, with a slider fixedly connected to the lower end of the nut body. The slider is slidably mounted in a guide groove, and the threaded rod is threadedly mounted in the nut body. The guide groove guides the slider to slide and constrain the movement path of the nut. When the knob is turned, the threaded rod rotates, causing it to spiral along the inside of the nut body, pushing the nut outward or loosening it, facilitating the detection or removal of the target ultra-high molecular weight polyethylene fiber rope.

[0011] Preferably, the rope clamp includes a binding post, one binding post of which is fixedly connected to the frame body, and the binding post of the other rope clamp is fixedly connected to the nut body. A sliding bolt is slidably installed at the lower part of the binding post, one end of which is fixedly connected to a clamping plate, and the other end of which is fixedly connected to a stop block. The target UHMWPE fiber rope is gently wrapped around the binding post and clamping plate, keeping the binding post and clamping plate open. The target UHMWPE fiber rope is then wedged between the binding post and clamping plate, facilitating the tightening force of the target UHMWPE fiber rope to clamp the end of the target UHMWPE fiber rope.

[0012] In summary, the technical effects and advantages of this utility model are as follows: 1. Gently wrap the target UHMWPE fiber rope around the rope clamp at least two times, securing the rope end inside the clamp. After wrapping both ends of the target UHMWPE fiber rope, pull the rope ends to tighten the clamp, securing the target UHMWPE fiber rope. Then, screw on the threaded rod, which compresses the pressure sensor, pushing the nut outward and pulling the rope clamp further. This further tightens the rope clamp around the target UHMWPE fiber rope. The pressure from the threaded rod on the pressure sensor is used to obtain force data. This simple structure enables the detection of the target UHMWPE fiber rope, making it convenient to carry and use.

[0013] 2. The sliding block is guided by the guide groove to move along the constraint nut. When the knob is turned, the threaded rod is rotated, causing the threaded rod to spiral along the body of the nut, pushing the nut outward or loosening the nut, which facilitates the detection or removal of the target ultra-high molecular weight polyethylene fiber rope.

[0014] 3. Gently wrap the target UHMWPE fiber rope around the binding post and clamp, keeping the binding post and clamp open. Secure the target UHMWPE fiber rope between the binding post and clamp, so that the binding post and clamp can be tightened by the binding force of the target UHMWPE fiber rope, so that the binding post and clamp clamp the end of the target UHMWPE fiber rope. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the guide frame structure of this utility model; Figure 3 This is a schematic diagram of the nut structure of this utility model; Figure 4 This is a schematic diagram of the rope clamp structure of this utility model.

[0016] In the diagram: 1. Pressure sensor; 2. Guide frame; 3. Nut; 4. Rope clamp; 5. Threaded rod; 6. Knob; 7. First spherical block; 21. Frame; 22. Handle; 23. Second spherical block; 24. Guide groove; 31. Nut body; 32. Slider; 41. Binding post; 42. Sliding bolt; 43. Stop; 44. Clamping plate. Detailed Implementation

[0017] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0018] like Figure 1 As shown, a device for testing the strength of ultra-high molecular weight polyethylene (UHMWPE) fiber rope includes a pressure sensor 1, a guide frame 2 fixedly mounted externally on the pressure sensor 1, a nut 3 slidably mounted on the guide frame 2, and rope clamps 4 fixedly mounted on both the guide frame 2 and the nut 3. A threaded rod 5 is threaded internally onto the nut 3, and a knob 6 is fixedly connected to one end of the threaded rod 5. The target UHMWPE fiber rope is gently wound around the rope clamp 4, at least two turns, with the rope tail secured inside the rope clamp 4. After both ends of the target UHMWPE fiber rope are wound, the rope tails are pulled to tighten the rope clamp 4, thus securing the target UHMWPE fiber rope. The threaded rod 5 is then screwed on, pressing the pressure sensor 1 and pushing the nut 3 outwards. This causes the nut 3 to pull the rope clamp 4 outwards, further tightening the target UHMWPE fiber rope. Force data is obtained by measuring the pressure exerted on the pressure sensor 1 by the threaded rod 5.

[0019] like Figure 1 As shown, a first spherical block 7 is fixedly connected to the outer end of the knob 6. The first spherical block 7 increases the contact surface with the hand, preventing the knob 6 from puncturing the hand.

[0020] like Figure 1 and 2 As shown, the guide frame 2 includes a frame body 21 with a guide groove 24. The pressure sensor 1 is fixedly installed on the side of the frame body 21, and a handle 22 is fixedly connected to the outer end of the frame body 21. The guide groove 24 guides the nut 3 to slide.

[0021] like Figure 2 As shown, a second spherical block 23 is fixedly connected to the outer end of the frame 21. The second spherical block 23 is used to increase the contact area with the hand and prevent the handle 22 from poking the hand.

[0022] like Figure 1 , 2As shown in Figure 3, the nut 3 includes a nut body 31, with a slider 32 fixedly connected to the lower end of the nut body 31. The slider 32 is slidably installed in the guide groove 24, and the threaded rod 5 is threadedly installed in the nut body 31. The guide groove 24 guides the slider 32 to slide and constrain the movement path of the nut 3. When the knob 6 is turned, the threaded rod 5 rotates, causing the threaded rod 5 to spiral along the inside of the nut body 31, thus pushing the nut 3 outward or loosening the nut 3.

[0023] like Figure 1 , 2 As shown in Figures 3 and 4, the rope clamp 4 includes a binding post 41. One rope clamp 4's binding post 41 is fixedly connected to the frame 21, and the other rope clamp 4's binding post 41 is fixedly connected to the nut body 31. A sliding bolt 42 is slidably installed on the lower part of the binding post 41. One end of the sliding bolt 42 is fixedly connected to a clamping plate 44, and the other end of the sliding bolt 42 is fixedly connected to a stop block 43. The target ultra-high molecular weight polyethylene fiber rope is gently wrapped around the binding post 41 and the clamping plate 44, keeping the binding post 41 and the clamping plate 44 open, thus securing the target ultra-high molecular weight polyethylene fiber rope between the binding post 41 and the clamping plate 44.

[0024] Working principle: Gently wrap the target UHMWPE fiber rope around the rope clamp 4, at least two turns, and secure the rope end inside the rope clamp 4. After wrapping both ends of the target UHMWPE fiber rope, pull the rope ends to tighten the rope clamp 4, thus clamping and fixing the target UHMWPE fiber rope. Then, screw the threaded rod 5, which compresses the pressure sensor 1, causing the threaded rod 5 to push the nut 3 outward, which in turn pulls the rope clamp 4 outward, further clamping and fixing the target UHMWPE fiber rope. The force data is obtained through the pressure of the threaded rod 5 on the pressure sensor 1.

[0025] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0026] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A device for testing the strength of ultra-high molecular weight polyethylene fiber rope, comprising a pressure sensor (1), characterized in that: The pressure sensor (1) is fixedly mounted with a guide frame (2), and a nut (3) is slidably mounted on the guide frame (2). A rope clamp (4) is fixedly mounted on both the guide frame (2) and the nut (3). A threaded rod (5) is installed on the internal thread of the nut (3), and a knob (6) is fixedly connected to one end of the threaded rod (5).

2. The ultra-high molecular weight polyethylene fiber rope strength testing device according to claim 1, characterized in that: The outer end of the knob (6) is fixedly connected to the first spherical block (7).

3. The ultra-high molecular weight polyethylene fiber rope strength testing device according to claim 1, characterized in that: The guide frame (2) includes a frame (21), a guide groove (24) is provided on the frame (21), a pressure sensor (1) is fixedly installed on the side of the frame (21), and a handle (22) is fixedly connected to the outer end of the frame (21).

4. The ultra-high molecular weight polyethylene fiber rope strength testing device according to claim 3, characterized in that: The outer end of the frame (21) is fixedly connected to a second spherical block (23).

5. The ultra-high molecular weight polyethylene fiber rope strength testing device according to claim 3, characterized in that: The nut (3) includes a nut body (31), and a slider (32) is fixedly connected to the lower end of the nut body (31). The slider (32) is slidably installed in the guide groove (24), and the threaded rod (5) is threadedly installed in the nut body (31).

6. The ultra-high molecular weight polyethylene fiber rope strength testing device according to claim 5, characterized in that: The rope clamp (4) includes a binding post (41), one of the binding posts (41) of the rope clamp (4) is fixedly connected to the frame (21), and the binding post (41) of the other rope clamp (4) is fixedly connected to the nut body (31). A sliding bolt (42) is slidably installed on the lower part of the binding post (41). One end of the sliding bolt (42) is fixedly connected to a clamp plate (44), and the other end of the sliding bolt (42) is fixedly connected to a stop block (43).

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