High and low temperature cord thread bending fatigue testing machine

Abstract

The utility model relates to the technical field of test instruments, in particular to a high-low temperature cord thread bending fatigue testing machine which comprises a support body, a limiting groove is formed in the base face of the support body, a fixing rod is fixedly connected to the side, close to a fixing plate, of the base face of the support body, and one end of the fixing rod is connected with a first guide wheel through a bearing. The bottom end of the inner wall of the limiting groove is connected with a lead screw through a bearing, one end of the lead screw is connected with a motor through a coupler, the outer side of the lead screw is connected with a sliding block through an internal thread groove, the base face of the sliding block is fixedly connected with a movable rod, and the base face of the fixing plate is provided with scale marks. By arranging a first guide wheel, a lead screw, a motor, a sliding block, a movable rod, a control panel, a sliding groove and a second guide wheel, the test efficiency is improved, and the practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of test instruments, in particular to a high and low temperature cord bending fatigue testing machine. Background Technique

[0002] Cord is a warp material for weaving cord fabric and can be used in rubber products such as tires, conveyor belts, and transmission belts. It is mainly divided into viscose cord, polyamide cord, polyester cord, aromatic polyamide cord, etc., with different performances. In actual use, it is required that the cord should have high strength, high initial modulus, heat resistance, fatigue resistance, good dimensional stability, good adhesion to rubber, etc. Users often choose according to the performance requirements of rubber products and cost factors. The cord bending fatigue testing machine is exactly an instrument for measuring the bending fatigue performance of different cords.

[0003] The existing bending fatigue testing machines are usually difficult to operate, with low test efficiency for cords, resulting in poor practicability.

[0004] To sum up, the utility model solves the existing problems by designing a high and low temperature cord bending fatigue testing machine. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high and low temperature cord bending fatigue testing machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high and low temperature cord bending fatigue testing machine includes a bracket main body. A limiting groove is opened on the base surface of the bracket main body. Fixed plates are fixedly installed on both sides of the base surface of the bracket main body close to the limiting groove. A fixed rod is fixedly connected to one side of the base surface of the bracket main body close to the fixed plate. One end of the fixed rod is connected to a first guide wheel through a bearing. The bottom end of the inner wall of the limiting groove is connected to a lead screw through a bearing. One end of the lead screw is connected to a motor through a coupling. A sliding block is connected to the outside of the lead screw through an internal thread groove. A movable rod is fixedly connected to the base surface of the sliding block. A scale line is provided on the base surface of the fixed plate.

[0008] As a preferred scheme of the utility model, a control panel is fixedly installed at the left end of the bracket main body, and the control panel is electrically connected to the motor.

[0009] As a preferred scheme of the utility model, chutes adapted to the sliding block are opened at both the left and right ends of the inner wall of the limiting groove.

[0010] As a preferred scheme of the utility model, a cord is provided on the outside of the first guide wheel.

[0011] As a preferred embodiment of the present utility model, the outside of the motor is fixedly installed at the top of the bracket main body, and one end of the movable rod is connected with a second guide wheel through a bearing.

[0012] As a preferred embodiment of the present utility model, the number of the scale lines is two.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, by arranging a first guide wheel, a lead screw, a motor, a sliding block, a movable rod, a control panel, a chute and a second guide wheel in a high and low temperature cord bending fatigue testing machine, the motor is controlled through the control panel, and the test efficiency is improved under the cooperation of the first guide wheel, the lead screw, the sliding block, the movable rod, the chute and the second guide wheel, thereby enhancing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the bracket main body, the limiting groove, the lead screw, the sliding block and the chute structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the fixing plate and the scale line structure of the present utility model.

[0018] In the figure: 1. Bracket main body; 2. Limiting groove; 3. Fixing plate; 4. Fixed rod; 5. First guide wheel; 6. Lead screw; 7. Motor; 8. Sliding block; 9. Movable rod; 10. Scale line; 11. Control panel; 12. Chute; 13. Cord; 14. Second guide wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For the embodiments, please refer to Figures 1-3 , this utility model provides a technical solution:

[0024] A high and low temperature cord bending fatigue testing machine, which includes a bracket main body 1. A limiting groove 2 is opened on the base surface of the bracket main body 1. Fixed plates 3 are fixedly installed on both sides of the base surface of the bracket main body 1 close to the limiting groove 2. A fixed rod 4 is fixedly connected to one side of the base surface of the bracket main body 1 close to the fixed plate 3. One end of the fixed rod 4 is connected to a first guide wheel 5 through a bearing. The bottom end of the inner wall of the limiting groove 2 is connected to a lead screw 6 through a bearing. One end of the lead screw 6 is connected to a motor 7 through a coupling. A sliding block 8 is connected to the outside of the lead screw 6 through an internal thread groove. A movable rod 9 is fixedly connected to the base surface of the sliding block 8. Thus, the motor 7 is controlled through the control panel 11. The cord 13 to be tested is installed on the first guide wheel 5. The motor 7 is driven through the control panel 11. Under the action of the coupling, the lead screw 6 is driven to rotate. The sliding block 8, the movable rod 9 and the second guide wheel 14 are driven to move downward along the chute 12 through the internal thread groove, and the bending fatigue test is carried out, improving the test efficiency;

[0025] Wherein, a control panel 11 is fixedly installed at the left end of the bracket main body 1, and the control panel 11 is electrically connected to the motor 7. Chutes 12 adapted to the sliding block 8 are opened at both the left and right ends of the inner wall of the limiting groove 2. A cord 13 is arranged outside the first guide wheel 5. The motor 7 is fixedly installed at the top of the bracket main body 1. One end of the movable rod 9 is connected to a second guide wheel 14 through a bearing. Thus, the motor 7 is controlled through the control panel 11. The cord 13 to be tested is installed on the first guide wheel 5, and the second guide wheel 14 is pressed against the cord 13. At the same time, the motor 7 is driven through the control panel 11. Under the action of the coupling, the lead screw 6 is driven to rotate. The sliding block 8, the movable rod 9 and the second guide wheel 14 are driven to move downward along the chute 12 through the internal thread groove, and the bending fatigue test is carried out, improving the test efficiency and enhancing the practicability.

[0026] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 . The base surface of the fixing plate 3 is provided with scale lines 10, so as to accurately adjust the moving distance of the sliding block 8 through the fixing plate 3 and the scale lines 10;

[0027] Among them, the number of the scale lines 10 is two, so as to accurately adjust the moving distance of the sliding block 8 through the fixing plate 3 and the scale lines 10, which is clear at a glance.

[0028] The working process of the utility model: When in use, check whether the appearance of the device is damaged. After the inspection, power on the device, control the motor 7 through the control panel 11, install the cord 13 to be tested on the first guide wheel 5, make the second guide wheel 14 press tightly against the cord 13, and at the same time drive the motor 7 through the control panel 11. Under the action of the coupling, drive the lead screw 6 to rotate, and drive the sliding block 8, the movable rod 9 and the second guide wheel 14 to move downward along the chute 12 through the internal thread groove to carry out the bending fatigue test, improving the test efficiency. Among them, the moving distance of the sliding block 8 is accurately adjusted through the fixing plate 3 and the scale lines 10, which is clear at a glance, enhancing the practicability and having the promotion value.

[0029] The motor 7 and the control panel 11 used in the utility model are both existing known electrical devices, and both can be directly purchased and used in the market. Their structures, circuits, and control principles are all existing known technologies. Therefore, the structures, circuits, and control principles of the motor 7 and the control panel 11 are not described in detail here.

[0030] Although the embodiments of the utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high and low temperature cord bending fatigue testing machine, comprising a support body (1), characterized in that: The base surface of the bracket body (1) is provided with a limit groove (2), and fixed plates (3) are fixedly installed on both sides of the base surface of the bracket body (1) close to the limit groove (2), and a fixed rod (4) is fixedly connected to one side of the base surface of the bracket body (1) close to the fixed plate (3), and one end of the fixed rod (4) is connected to a first guide wheel (5) through a bearing, and the bottom end of the inner wall of the limit groove (2) is connected to a lead screw (6) through a bearing, and one end of the lead screw (6) is connected to a motor (7) through a coupling, and the outer side of the lead screw (6) is connected to a sliding block (8) through an internal thread groove, and the base surface of the sliding block (8) is fixedly connected to a movable rod (9), and the base surface of the fixed plate (3) is provided with a scale line (10).

2. A high and low temperature cord bending fatigue testing machine according to claim 1, characterized in that: A control panel (11) is fixedly mounted on the left end of the bracket body (1), and the control panel (11) is electrically connected to the motor (7).

3. A high and low temperature cord bending fatigue testing machine according to claim 1, characterized in that: Sliding grooves (12) adapted to the sliding block (8) are provided at both left and right ends of the inner wall of the limiting groove (2).

4. A high and low temperature cord bending fatigue testing machine according to claim 1, characterized in that: A cord (13) is provided on the outer side of the first guide wheel (5).

5. The high and low temperature cord bending fatigue testing machine according to claim 1, characterized in that: The outer side of the motor (7) is fixedly mounted on the top end of the bracket body (1), and one end of the movable rod (9) is connected to a second guide wheel (14) via a bearing.

6. The high and low temperature cord bending fatigue testing machine according to claim 1, characterized in that: The number of the scale lines (10) is two.

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