A chain strength testing mechanism

Abstract

This utility model discloses a chain strength testing mechanism, relating to the field of chain strength testing technology. It includes a handle and chain links. A sliding component is provided on one side of the handle, and a support plate is provided on another side of the handle. A mounting groove is formed on the side of the handle near the support plate, and a motor is installed inside the mounting groove. Limiting slide rods are provided at both ends of the top of one side of the support plate, and a fixing plate is provided on one side of each limiting slide rod. A screw is rotatably connected to the bottom of the adjacent ends of the fixing plate and the support plate. A fixing isolation ring is provided at the middle position of the screw. This utility model, through the provided screw, pressing rod, and limiting slide rods, can effectively test the support strength of the inner transverse and longitudinal widths of the chain links, as well as the support strength of the outer transverse and longitudinal widths of the chain links. Furthermore, the direct impact of the actual deformation can be obtained by utilizing the resulting numerical differences, thus improving the testing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of chain strength testing technology, specifically a chain strength testing mechanism. Background Technology

[0002] A chain strength testing machine is a device specifically designed to evaluate the load-bearing capacity of a chain under extreme stress conditions. Its main function is to comprehensively record the strength and durability of the chain in different environments by simulating the working conditions under different tension and cyclic loads, ensuring that the chain can withstand the expected load during operation, and improving the accurate control of the chain's quality and service life.

[0003] To avoid chain skipping, breakage, and deformation caused by continuous tension and wear in transmission systems, which affects operational safety and transmission efficiency, a chain strength testing mechanism has been developed (see patent number: 202323364140.0), belonging to the field of chain strength testing technology. The mechanism includes a body with a toothed rail frame mounted on its top. An industrial camera is meshed with the front end of the toothed rail frame. A sliding bracket is mounted at one end of the toothed rail frame, and a slider is slidably connected inside the sliding bracket. A cavity is installed at the front end of the slider. This invention, by setting up a support adjustment component and a tooth expansion component, eliminates the need for a clamping structure in the chain testing device. It can adapt to chains of various sizes, simulate working conditions under different tension and cyclic loads, comprehensively record the chain's strength and durability in different environments, ensure that the chain can withstand the expected load during operation, and improve the accurate control of chain quality and service life.

[0004] Because a chain is composed of multiple sets of links connected together, the strength test is usually conducted on the entire chain, rather than testing the internal and external load-bearing strength of each link individually. This results in some errors in the test and a poor strength test result.

[0005] To address the aforementioned issues, a chain strength testing mechanism has been developed. Utility Model Content

[0006] The purpose of this invention is to provide a chain strength testing mechanism to solve the problem that the testing range is too large and cannot be closely measured during the chain strength testing process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a chain strength testing mechanism, including a handle and chain links, wherein a sliding component is provided on one side of the handle, and a support plate is provided on one side of the handle;

[0008] The handle has a mounting groove on the side near the support plate, and a motor is installed inside the mounting groove. Both ends of the top of one side of the support plate are provided with limit slide rods. A fixing plate is provided on one side of the limit slide rod. A screw is rotatably connected to the bottom of the fixed plate and the support plate at the adjacent end. A fixing isolation ring is provided at the middle position of the screw. A left-hand external thread is provided on one side of the screw, and a right-hand external thread is provided on the other side of the screw.

[0009] The sliding components are in two sets, and both sets of sliding components include sliding blocks. Each sliding block has a pressing rod at its bottom, and each pressing rod has a limit block at its bottom end on both sides. One set of sliding blocks has a left-handed internal thread at one bottom end, and the other set of sliding blocks has a right-handed internal thread at one bottom end.

[0010] As a further embodiment of this utility model: one set of the sliding blocks is threaded to one side of the screw through the mutual cooperation of a left-hand internal thread and a left-hand external thread, and the remaining set of the sliding blocks is threaded to the other side of the screw through the mutual cooperation of a right-hand internal thread and a right-hand external thread.

[0011] As a further improvement of this utility model: both ends of the top of one side of the two sets of sliding blocks are provided with insertion holes that match the limiting slide rods, and the limiting slide rods are slidably connected to the two sets of sliding blocks through the insertion holes.

[0012] As a further embodiment of this utility model: a bearing seat is provided on one side of the screw, and a bearing is provided inside the bearing seat. The screw is rotatably connected to the fixed plate through the mutual cooperation of the bearing seat and the bearing.

[0013] As a further improvement of this utility model, the top of the limiting slide rod is evenly provided with multiple sets of scales, and the values ​​of the scales increase sequentially from the middle position on the outer side of the limiting slide rod as the base point to both sides.

[0014] As a further embodiment of this utility model: a movable hole extending to the other side is provided at the bottom of one side of the support plate, the other side of the screw is rotatably connected to the support plate through the movable hole, and the output end of the motor is fixedly connected to the other side of the screw.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. During the strength test, the value on the limit slide bar is recorded first. Then, the output end of the motor is continuously rotated under the action of electricity, so that the two sets of pressure bars generate outward support force on both sides inside the chain link. The support force causes the chain link 3 to deform and open. The position of the sliding block on the limit slide bar after each change is observed and the value is recorded. The strength of the chain can be tested by using the difference between the two values.

[0017] 2. By using the set screw, pressure rod and limiting slide rod, the support strength of the inner transverse width and inner longitudinal width of the chain link, as well as the support strength of the outer inner transverse width and outer longitudinal width of the chain link, can be effectively tested. The difference in values ​​can be used to obtain the direct impact of the actual deformation, thereby improving the test accuracy, reducing errors and improving the strength test results. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the chain structure of this utility model.

[0021] In the diagram: 1. Handle; 101. Mounting slot; 102. Support plate; 103. Limiting slide bar; 104. Fixing plate; 105. Motor; 106. Screw; 107. Fixing isolation ring; 2. Sliding assembly; 201. Sliding block; 202. Limiting block; 203. Insertion hole; 204. Pressing rod; 3. Chain link. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] Please see Figures 1-3 In this embodiment of the utility model, a chain strength testing mechanism includes a handle 1 and a chain link 3. A sliding component 2 is provided on one side of the handle 1, and a support plate 102 is provided on one side of the handle 1.

[0025] The handle 1 has a mounting groove 101 on the side near the support plate 102. A motor 105 is installed inside the mounting groove 101. Limiting slide rods 103 are provided at both ends of the top of one side of the support plate 102. A fixing plate 104 is provided on one side of the limiting slide rod 103. A screw 106 is rotatably connected to the bottom of the fixed plate 104 and the support plate 102 at the adjacent end. A fixing isolation ring 107 is provided at the middle position of the outside of the screw 106. A left-handed external thread is provided on one side of the outside of the screw 106, and a right-handed external thread is provided on the other side of the outside of the screw 106.

[0026] The sliding components 2 are in two sets, and both sets of sliding components 2 include a sliding block 201. The bottom of the sliding block 201 is provided with a pressing rod 204. The bottom ends of both sides of the pressing rod 204 are provided with limit blocks 202. The bottom end of one side of one set of sliding blocks 201 is provided with a left-hand internal thread, and the bottom end of one side of the other set of sliding blocks 201 is provided with a right-hand internal thread.

[0027] In this embodiment, the purpose of the fixed isolation ring 107 is to isolate the left-handed external threads and the right-handed external threads on both sides, thereby improving the performance of the screw 106. The motor 105 is a forward and reverse motor, which means a motor that can rotate clockwise and counterclockwise. From a standard perspective, when viewed from the shaft extension end of the motor, clockwise rotation is defined as forward rotation, while counterclockwise rotation is considered as reverse rotation.

[0028] Please see Figures 1 to 2 One set of sliding blocks 201 is threaded to one side of the screw 106 through the mutual engagement of a left-hand internal thread and a left-hand external thread, and the remaining set of sliding blocks 201 is threaded to the other side of the screw 106 through the mutual engagement of a right-hand internal thread and a right-hand external thread.

[0029] Please see Figures 1 to 2 Both ends of the top of one side of the two sets of sliding blocks 201 are provided with insertion holes 203 that match the limiting slide rod 103. The limiting slide rod 103 is slidably connected to the two sets of sliding blocks 201 through the insertion holes 203. The limiting slide rod 103 makes the sliding between the sliding block 201 and the two sets of sliding blocks 201 easier and reduces the frictional resistance generated during sliding.

[0030] Please see Figures 1 to 2 A bearing housing is provided on one side of the screw 106, and a bearing is provided inside the bearing housing. The screw 106 is rotatably connected to the fixed plate 104 through the mutual cooperation of the bearing housing and the bearing.

[0031] In this embodiment, a bearing is a mechanical element that restricts relative motion within the desired range of motion and reduces friction between moving parts. The bearing design can provide free linear motion or free rotation of moving parts around a fixed axis, or prevent motion by controlling the vector of the normal force acting on the moving parts. Most bearings facilitate the desired motion by minimizing friction.

[0032] Please see Figures 1 to 2 The top of the limiting slide bar 103 is evenly provided with multiple sets of scales, and the scale values ​​increase sequentially from the middle position on the outer side of the limiting slide bar 103 to both sides.

[0033] In this embodiment, the scale value is increased sequentially from the middle position of the outer side of the limiting slide bar 103 to both sides. Since the moving range of the sliding blocks 201 on both sides is the same as the distance to the middle position of the outer side of the limiting slide bar 103, the specific width of the pressing position on both sides can be obtained by multiplying the scale value on one side by two, thus providing effective data support for the subsequent test accuracy.

[0034] Please see Figures 1 to 2The bottom of one side of the support plate 102 is provided with a movable hole extending to the other side. The other side of the screw 106 is rotatably connected to the support plate 102 through the movable hole, and the output end of the motor 105 is fixedly connected to the other side of the screw 106.

[0035] The working principle of this utility model is as follows: When in use, hold the handle 1 and then connect the power supply. The output end of the motor 105 rotates counterclockwise under the action of electricity, and carries the screw 106 to rotate counterclockwise. Thus, the left-handed external thread and the right-handed external thread on its exterior can match the left-handed internal thread and the right-handed internal thread on the two sets of sliding blocks 201. According to the original setting, the two sets of sliding blocks 201 should rotate with the screw 106. However, since the top of one side of the two sets of sliding blocks 201 is restricted by the limiting slide rod 103, the two sets of sliding blocks 201 can only slide left and right along the limiting slide rod. In order to ensure the conservation of force, the two sets of sliding blocks 201 can only move along the corresponding left-handed external thread and right-handed external thread in sequence under the action of the left-handed internal thread and the right-handed internal thread. Thus, the two sets of sliding blocks 201 can move along the screw 106 to the adjacent side respectively, so that the distance between the two sets of sliding blocks 201 becomes shorter and shorter.

[0036] When the two sets of bottom pressure rods 204 shorten and just extend into the inside of the chain link 3, the output of the motor 105 can rotate in the opposite direction under the action of electricity, so that the two sets of sliding blocks 201 can move away from the position until the bottom of the pressure rod 204 abuts against the appropriate position on the chain link 3, thus preparing for the strength test of the chain link 3.

[0037] During the strength test, the value on the limiting slide bar 103 is first recorded. Then, the output end of the motor 105 is continuously rotated under the action of electricity, so that the two sets of pressure bars 204 generate outward support force on both sides inside the chain link 3. The support force causes the chain link 3 to deform and open. The position of the sliding block 201 on the limiting slide bar 103 after each change is observed and the value is recorded. The strength of the chain can be tested by using the difference between the two values.

[0038] When it is necessary to test the external load-bearing capacity of the chain link 3, the two sets of pressure rods 204 can be moved directly to the outside of the chain link 3 and exert an inward squeezing force on it. The difference in the outward movement can be used to test the external load-bearing capacity, thus making the test effect better and the test more accurate.

[0039] It can also perform strength tests on chains composed of multiple links 3.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A chain strength testing mechanism, comprising a handle (1) and chain links (3), characterized in that, A sliding component (2) is provided on one side of the handle (1), and a support plate (102) is provided on one side of the handle (1). Among them, the handle (1) has an installation groove (101) on the side near the support plate (102), and a motor (105) is installed inside the installation groove (101). Both ends of the top of the support plate (102) are provided with limit slide rods (103). A fixing plate (104) is provided on one side of the limit slide rod (103). A screw (106) is rotatably connected to the bottom of the adjacent end of the fixing plate (104) and the support plate (102). A fixing isolation ring (107) is provided at the middle position of the outside of the screw (106). A left-handed external thread is provided on one side of the outside of the screw (106), and a right-handed external thread is provided on the other side of the outside of the screw (106). There are two sets of sliding components (2), and both sets of sliding components (2) include sliding blocks (201). The bottom of each sliding block (201) is provided with a pressing rod (204). The bottom ends of both sides of the pressing rod (204) are provided with limit blocks (202). One set of sliding blocks (201) has a left-handed internal thread on one side of the bottom end, and the other set of sliding blocks (201) has a right-handed internal thread on one side of the bottom end.

2. The chain strength testing mechanism according to claim 1, characterized in that, One set of the sliding blocks (201) is threaded to one side of the screw (106) through the mutual engagement of the left-hand internal thread and the left-hand external thread, and the remaining set of the sliding blocks (201) is threaded to the other side of the screw (106) through the mutual engagement of the right-hand internal thread and the right-hand external thread.

3. The chain strength testing mechanism according to claim 1, characterized in that, Both ends of the top of one side of the two sets of sliding blocks (201) are provided with insertion holes (203) that match the limiting slide rod (103). The limiting slide rod (103) is slidably connected to the two sets of sliding blocks (201) through the insertion holes (203).

4. The chain strength testing mechanism according to claim 1, characterized in that, A bearing seat is provided on one side of the screw (106), and a bearing is provided inside the bearing seat. The screw (106) is rotatably connected to the fixing plate (104) through the mutual cooperation of the bearing seat and the bearing.

5. The chain strength testing mechanism according to claim 1, characterized in that, The top of the limiting slide bar (103) is uniformly provided with multiple sets of scales, and the scale values ​​increase sequentially from the middle position on the outer side of the limiting slide bar (103) to both sides.

6. The chain strength testing mechanism according to claim 1, characterized in that, The bottom of one side of the support plate (102) is provided with a movable hole extending to the other side. The other side of the screw (105) is rotatably connected to the support plate (102) through the movable hole. The output end of the motor (105) is fixedly connected to the other side of the screw (106).

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