Novel mechanical clamp for tensile testing machine of self-tightening woven belt for experiment
By designing a new type of braided belt tensile testing machine mechanical fixture with wavy clamps and slide rod structures, the existing fixtures have solved the problems of high clamping and high cost and complex operation under high tension, and achieved the self-tightening effect of braided belts and the accuracy of test results.
Patent Information
- Application Number
- CN202421693226.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing mechanical fixtures of braided belt tension testing machines are prone to cause unclipping when they bear large tension. The hydraulic station system fixtures are costly and complex in operation, and the clamps are not treated, resulting in the sample breakage.
A new type of mechanical fixture of the self-tightening braided belt tensile tester for experimental self-tightening braided belt is designed, using a wavy clamp and a slide slide bar structure. Through the cooperation of upper and lower pressure claws, the self-tightening effect of the braided belt is achieved and the phenomenon of unclipping is avoided.
It effectively prevents the shedding or slippage of the braided belt during the test, improves the tensile force value to withstand, and ensures the accuracy and reliability of the test results.
Smart Images
Figure CN222994155U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of braided belt clamps, in particular to a new type of mechanical clamp for a self-tightening braided belt tensile testing machine for experiments. Background Technique
[0002] The mechanical clamp of a braided belt tensile testing machine is a key component in the tensile testing machine for fixing and clamping the braided belt specimen. Its main function is to ensure the stable position of the braided belt during the tensile test, prevent the specimen from slipping or falling off, which affects the accuracy of the test results. It plays a crucial role in the tensile test process and is directly related to the accuracy and reliability of the test results.
[0003] At present, for the mechanical clamps of braided belt tensile testing machines on the market, the first type is a mechanical clamp. After bearing a tensile force of about five tons from the tensile testing machine, due to insufficient mutual extrusion force between the pressure claws, the clamping-off phenomenon occurs, resulting in the invalidation of the tensile test. The second type is a mechanical clamp equipped with a hydraulic station system. After wide application, the cost is too high, the system operation is complex, and although the clamp can achieve effective clamping force, because the clamping mouth is not processed, the specimen breaks at the clamping mouth, resulting in the invalidation of the tensile test. Therefore, a new type of mechanical clamp for a self-tightening braided belt tensile testing machine for experiments is proposed to solve the above problems. Content of the Utility Model
[0004] (1) Solved Technical Problem
[0005] In view of the deficiencies of the prior art, the utility model provides a new type of mechanical clamp for a self-tightening braided belt tensile testing machine for experiments, which has the advantages of being able to withstand greater tensile force and not being easily detached, etc., and solves the problems of the mechanical clamps of braided belt tensile testing machines on the market at present. The first type is a mechanical clamp. After bearing a tensile force of about five tons from the tensile testing machine, due to insufficient mutual extrusion force between the pressure claws, the clamping-off phenomenon occurs, resulting in the invalidation of the tensile test. The second type is a mechanical clamp equipped with a hydraulic station system. After wide application, the cost is too high, the system operation is complex, and although the clamp can achieve effective clamping force, because the clamping mouth is not processed, the specimen breaks at the clamping mouth, resulting in the invalidation of the tensile test.
[0006] (2) Technical Solution
[0007] To achieve the above purpose of withstanding greater tensile force and not being easily detached, the utility model provides the following technical solution:
[0008] A new type of mechanical clamp for a self-tightening braided belt tensile testing machine for experiments includes two left and right fixing plates and a mounting plate between the tops of the two fixing plates;
[0009] Fixing holes are provided at the tops of the left and right outer walls of the fixing plate. The mounting plate is threadedly connected to the fixing plate through the fixing holes. Mounting holes are provided at the bottoms of the left and right outer walls of the fixing plate. Fixing bolts are inserted into the mounting holes. A pressing claw is arranged below the mounting plate between the two fixing plates. The pressing claw is mounted on the fixing plate through the mounting holes and the fixing bolts.
[0010] As a preferred technical solution of the present invention, a threaded head is fixedly installed in the middle of the mounting plate, and a pulling head is threadedly connected to the top of the threaded head.
[0011] As a preferred technical solution of the present invention, threads are provided on the outer wall surface of the pulling head, and a threaded disc is threadedly connected to the surface of the pulling head. A fixing hole is provided in the middle of the outer wall of the pulling head.
[0012] As a preferred technical solution of the present invention, slideways are provided on the outer wall surfaces of the left and right fixing plates, and an upper pressing claw is arranged above the lower pressing claw.
[0013] As a preferred technical solution of the present invention, sliding rods are fixedly installed at both left and right ends of the upper pressing claw, and the sliding rods are slidably connected to the slideways.
[0014] As a preferred technical solution of the present invention, a braided belt is wound around the surface of the upper pressing claw, and the corresponding clamping openings between the upper pressing claw and the lower pressing claw are both wavy.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the present invention provides a new mechanical fixture for a self-tightening braided belt tensile testing machine for experiments, which has the following beneficial effects:
[0017] For this new mechanical fixture for a self-tightening braided belt tensile testing machine for experiments, through the mutual cooperation of the slideway and the sliding rod components, the upper pressing claw can slide smoothly on the fixing plate. Coupled with the wavy clamping openings, it can be wound more tightly during pulling, effectively preventing the braided belt from falling off or slipping during the test, and also increasing the tensile force value that can be borne, which is convenient for users to use. Description of the drawings
[0018] Figure 1 is a schematic structural diagram of the present invention;
[0019] Figure 2 is a schematic internal structural diagram of the present invention;
[0020] Figure 3 is a schematic side structural diagram of the present invention.
[0021] In the figure: 1. Fixed plate; 2. Mounting plate; 3. Fixing hole; 4. Mounting hole; 5. Lower pressing claw; 6. Threaded head; 7. Pulling head; 8. Threaded disc; 9. Connecting hole; 10. Slideway; 11. Upper pressing claw; 12. Slide bar; 13. Braided belt. Detailed implementation manners
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0023] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
[0024] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0025] Please refer to Figures 1 - 3 , a new type of self-tightening braided belt tensile testing machine mechanical fixture for experiments, including two left and right fixed plates 1 and a mounting plate 2 between the tops of the two fixed plates 1.
[0026] In this embodiment, fixing holes 3 are provided at the top of the left and right outer walls of the fixing plate 1. The fixing plate 1 serves as the main structure of the fixture, providing a stable support and installation foundation. The mounting plate 2 is threadedly connected to the fixing plate 1 through the fixing holes 3. The mounting plate 2 serves as a platform for mounting other components. Mounting holes 4 are provided at the bottom of the left and right outer walls of the fixing plate 1. The mounting holes 4 provide insertion positions for the fixing bolts. Fixing bolts are inserted into the mounting holes 4. A lower pressing claw 5 is provided below the mounting plate 2 between the two fixing plates 1. The lower pressing claw 5 is mounted on the fixing plate 1 through the mounting holes 4 and the fixing bolts. The lower pressing claw 5 cooperates with the upper pressing claw 11 to form a clamping opening for clamping the braided belt 13. Its wavy design increases the contact area with the braided belt and improves the clamping effect.
[0027] In this embodiment, a threaded head 6 is fixedly installed in the middle of the mounting plate 2. The threaded head 6 serves as the connection point for the pulling head 7, and realizes the transmission of the pulling force through threaded connection. A pulling head 7 is threadedly connected to the top of the threaded head 6. The pulling head 7 is the connecting component for fixing the fixture on the equipment.
[0028] In this embodiment, threads are provided on the outer wall surface of the pulling head 7. A threaded disc 8 is threadedly connected to the surface of the pulling head 7. The threaded disc 8 increases the stability and control force during the tensile test. A connection hole 9 is provided in the middle of the outer wall of the pulling head 7. The connection hole 9 is used for fixing on the equipment for the tensile test.
[0029] In this embodiment, sliding grooves 10 are provided on the outer wall surfaces of the left and right fixing plates 1. The sliding grooves 10 provide a sliding track for the upper pressing claw 11, enabling it to move smoothly on the fixing plate 1. An upper pressing claw 11 is provided above the lower pressing claw 5. The upper pressing claw 11 is the main object around which the braided belt 13 is wound.
[0030] In this embodiment, sliding rods 12 are fixedly installed at both ends of the upper pressing claw 11. The sliding rods 12 serve as the sliding supports for the upper pressing claw 11, ensuring that the upper pressing claw slides smoothly on the sliding grooves 10. The sliding rods 12 are slidably connected to the sliding grooves 10.
[0031] In this embodiment, a braided belt 13 is wound around the surface of the upper pressing claw 11. The braided belt 13 is the object to be clamped by the fixture and subjected to a tensile test. The corresponding clamping openings between the upper pressing claw 11 and the lower pressing claw 5 are both wavy. The wavy clamping openings effectively solve the problem of insufficient mutual extrusion force between the pressing claws, can withstand a tensile test of about five tons, and make up for the lack of mutual extrusion force between the pressing claws.
[0032] Working principle: The wavy pressing claws are used to wind and load the specimen. The greater the pulling force of the tensile testing machine, the tighter the winding, and the greater the mutual extrusion force between the pressing claws, so as to achieve the self-tightening effect.
[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A novel mechanical fixture for a self-tightening braided belt tensile testing machine for experiments, comprising two left and right fixing plates (1) and a mounting plate (2) between the tops of the two fixing plates (1); Features: The top of the left and right outer walls of the fixing plate (1) are both provided with fixing holes (3), the mounting plate (2) is threadedly connected to the fixing plate (1) through the fixing holes (3), the bottom of the left and right outer walls of the fixing plate (1) are both provided with mounting holes (4), fixing bolts are inserted into the mounting holes (4), and a pressing claw (5) is provided below the mounting plate (2) between the two fixing plates (1), and the pressing claw (5) is mounted on the fixing plate (1) through the mounting holes (4) and the fixing bolts.
2. According to claim 1, a novel mechanical fixture for a self-tightening braided belt tensile testing machine for experiments is characterized by: A threaded head (6) is fixedly installed in the middle of the mounting plate (2), and a pull head (7) is threadedly connected to the top of the threaded head (6).
3. According to claim 2, a novel mechanical fixture for a self-tightening braided belt tensile testing machine for experiments is characterized by: The outer wall surface of the slider (7) is provided with threads, the surface of the slider (7) is threadedly connected with a threaded disk (8), and a connecting hole (9) is provided in the middle of the outer wall of the slider (7).
4. According to claim 1, a novel mechanical fixture for a self-tightening braided belt tensile testing machine for experiments is characterized by: The outer wall surfaces of the left and right fixing plates (1) are both provided with slideways (10), and an upper pressing claw (11) is arranged above the lower pressing claw (5).
5. According to claim 4, a novel mechanical fixture for a self-tightening braided belt tensile testing machine for experiments is characterized by: Sliding rods (12) are fixedly mounted on both left and right ends of the upper pressing claw (11), and the sliding rods (12) are slidably connected to the slideway (10).
6. According to claim 5, a novel mechanical fixture for a self-tightening braided belt tensile testing machine for experiments is characterized by: A braided belt (13) is wound around the surface of the upper pressing jaw (11), and the corresponding clamping openings between the upper pressing jaw (11) and the lower pressing jaw (5) are both wavy in shape.