MV chain tensioning jig

Abstract

The utility model relates to the technical field of chain tensioning jigs, in particular to an MV chain tensioning jig. Comprising a mounting plate, the section of the mounting plate is in an L shape, mounting frames are mounted on the surfaces of the two ends of the mounting plate, a rotating plate is rotationally connected to the surface of the mounting plate, a moving rod is rotationally connected to one side of the rotating plate, and the arc surface of the moving rod is slidably connected with the surfaces of the mounting frames; an adjusting device is arranged at the position, corresponding to the mounting frame, of the surface of the mounting plate and comprises two limiting columns, the bottom ends of the two limiting columns are rotationally connected with the surface of the mounting plate, the section of each limiting column is semicircular, limiting grooves are formed in the positions, corresponding to the limiting columns, of the bottom face of the mounting frame, and the section of each limiting groove is semicircular. The inner wall of the limiting groove is clamped with the surface of the limiting column, and a baffle is fixedly connected to the position, corresponding to the side wall of the mounting frame, of the surface of the mounting plate. The MV chain tensioning jig has the advantage that the chain tensioning jig can be replaced and limited conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of chain tensioning jigs, in particular to an MV chain tensioning jig. Background Art

[0002] Chain tensioning jigs are usually tools or devices used to adjust and maintain the tension of chains in mechanical equipment. The chain needs to maintain proper tension. Too loose or too tight will affect its performance and life. The tensioning jig can help workers adjust the tension of the chain to the optimal state. It is more common in mechanical chain transmission equipment.

[0003] Existing technologies include a utility model with a publication number of CN211073264U, which discloses an automatic tensioning and angle adjustment jig. The patent includes two symmetrically arranged rotating arms, and the two ends of the two rotating arms are connected at the four corners of the lower surface of the jig plate. A first positioning block is installed at one lateral end of the jig plate and a second positioning block is installed at one longitudinal end. A ventilation plate is installed in the middle of the lower surface of the jig plate. The first cylinder is fixed at the other lateral end under the ventilation plate, and the telescopic end of the first cylinder is connected to a lateral clamping block for lateral adjustment. The second cylinder is fixed at the other longitudinal end under the ventilation plate, and the telescopic end of the second cylinder is connected to a longitudinal clamping block for longitudinal adjustment. A rotary lifting cylinder is connected to one side of the jig plate, and the rotary lifting cylinder is connected to a pressure block. The utility model has an angle-adjustable bracket, and the product cavity size varies, which is suitable for the effect of fast and high-precision clamping production of different product sizes.

[0004] It is found that in mechanical chain transmission equipment, during the operation and use of the chain tensioning jig, it is necessary to regularly check and adjust the tension of the chain to ensure that the chain does not slip during the operation of the equipment and that other components are not damaged due to improper tension. Long-term use of the chain tensioning jig is prone to damage to the chain tensioning jig, and it is inconvenient to replace the chain tensioning jig and limit it. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that, during the operation and use of the chain tensioning jig, it is necessary to regularly check and adjust the tension of the chain to ensure that the chain does not slip during the operation of the equipment, and other components are damaged due to improper tension. The chain tensioning jig is easily damaged when used for a long time, and it is inconvenient to replace the chain tensioning jig.

[0006] In order to solve the above technical problems, the utility model provides an MV chain tensioning fixture, comprising: a mounting plate, the cross-section of the mounting plate is "L"-shaped, mounting frames are installed on the surfaces of both ends of the mounting plate, the surface of the mounting plate is rotatably connected with a rotating plate, one side of the rotating plate is rotatably connected with a moving rod, the arc surface of the moving rod is slidably connected to the surface of the mounting frame, a fixture body is installed on one end of the moving rod, an adjustment device is provided at the position of the mounting frame on the surface of the mounting plate corresponding to the mounting frame, the adjustment device comprises two limiting columns, the bottom ends of the two limiting columns are rotatably connected to the surface of the mounting plate, the cross-section of the limiting columns is semicircular, a limiting groove is provided on the bottom surface of the mounting frame at the position corresponding to the limiting column, the cross-section of the limiting groove is semicircular, the inner wall of the limiting groove is clamped with the surface of the limiting column, a baffle is fixedly connected to the position of the mounting plate surface corresponding to the side wall of the mounting frame, the cross-section of the baffle is "L"-shaped, and the surface of the baffle is abutted against the mounting frame.

[0007] The effect achieved by the upper component is: after long-term operation of the MV chain tensioning jig, the jig body on the entire surface of the operating table will be worn. At this time, the entire jig needs to be replaced to avoid inaccurate operations caused by wear of the jig body. At this time, in order to replace and fix the mounting frame, first use the limit grooves on both sides of the mounting frame to dock with the limit columns rotating on the surface of the mounting plate. In this process, the two semicircular limit columns need to be deflected first to allow the entire mounting frame to be inserted, and then the limit columns are rotated in the opposite direction to allow the limit columns to be clamped and fixed with the limit grooves. At the same time, the baffle on the surface of the mounting plate is used to abut and fix them, so that the entire jig body can be effectively and conveniently replaced and limited.

[0008] Preferably, the bottom surface of the upper end of the limiting column is fixedly connected to a positioning frame, the inner wall of the positioning frame is rotatably connected to a positioning plate, the end of the positioning plate away from the limiting column is fixedly connected to a clamping block, and the surface of the mounting plate is fixedly connected to an auxiliary plate at a position corresponding to the clamping block, and the auxiliary plate abuts against the clamping block.

[0009] The effect achieved by the above components is that when fixing the position of the limit column, the positioning plate deflected on one side of the limit column can be used to allow the clamping plate at one end of the positioning plate to be clamped and limited with the auxiliary plate on the surface of the mounting plate.

[0010] Preferably, both ends of the inner wall of the positioning frame are sleeved with coil springs, and both ends of the coil spring are fixedly connected to the positioning plate and the positioning frame respectively.

[0011] The effect achieved by the above components is that the torsional force generated by the coil spring can effectively limit the position of the positioning plate.

[0012] Preferably, a friction pad is fixedly connected to one side of the clamping block and the auxiliary plate close to each other, and the friction pad is a rubber pad.

[0013] The effect achieved by the above components is: using the rubber friction pad can better fix the card block and the auxiliary plate to avoid sliding.

[0014] Preferably, an auxiliary device is provided on the surface of the jig body, and the auxiliary device includes a connecting groove, which is opened on the surface of the jig body, and a positioning rod is slidably penetrated through the inner wall of the connecting groove, and a positioning hole is opened on the surface of the moving rod, and the inner wall of the positioning hole is threadedly connected to the arc surface of the positioning rod, and both sides of the arc surface of the moving rod are fixedly connected to limit blocks, and two clamping plates are fixedly connected to the position of the limit blocks on the surface of the jig body corresponding to the position of the limit blocks, and the two clamping plates are clamped with the surface of the limit blocks.

[0015] The effect achieved by the above components is: in the process of clamping and using the MV chain tensioning jig, in order to facilitate the replacement and limit of the jig body, the positioning hole opened at one end of the moving rod is threadedly connected with the positioning rod sliding on the surface of the jig body, and at the same time, the limit blocks on both sides of the entire moving rod are plugged and limited with the clamping plate on the surface of the jig body, thereby avoiding the position deviation between the entire moving rod and the jig body. At this time, the entire jig body can be effectively and conveniently replaced and fixed.

[0016] Preferably, a rotation groove is formed on the surface of one end of the positioning rod away from the moving rod, and the rotation groove is a regular hexagonal groove.

[0017] The effect achieved by the above-mentioned components is that during the process of installing and fixing the positioning rod, the rotation groove provided on the surface of the positioning rod can be used for auxiliary operation.

[0018] Preferably, an extrusion ring is fixedly connected to the inner wall of the connecting groove, and one side of the extrusion ring abuts against the positioning rod.

[0019] The effect achieved by the above components is that the extrusion ring can be used to protect the positioning rod in the connecting groove to prevent the positioning rod from loosening and falling off.

[0020] Compared with the related art, the MV chain tensioning fixture provided by the utility model has the following beneficial effects:

[0021] The utility model provides an MV chain tensioning jig. After the MV chain tensioning jig is operated and used for a long time, the jig body on the entire surface of the operating table will be worn. At this time, the entire jig needs to be replaced to avoid inaccurate operations caused by the wear of the jig body. At this time, in order to replace and fix the mounting frame, the limiting grooves opened on both sides of the mounting frame are first connected with the limiting columns rotating on the surface of the mounting plate. In this process, the two semicircular limiting columns need to be deflected first to allow the entire mounting frame to be inserted, and then the limiting columns are rotated in the opposite direction to allow the limiting columns to be clamped and fixed with the limiting grooves, and at the same time, they are abutted and fixed with the baffle plate on the surface of the mounting plate. When fixing the position of the limiting column, the positioning plate deflected on one side of the limiting column can be used to allow the clamping plate at one end of the positioning plate to be clamped and limited with the auxiliary plate on the surface of the mounting plate. In this process, the torsional force generated by the coil spring can effectively limit the position of the positioning plate. By operating the adjusting device, the replacement, limiting and fixing of the entire jig body is effectively and conveniently achieved.

[0022] During the clamping operation of the MV chain tensioning jig, in order to facilitate the replacement and limiting of the jig body, the positioning hole opened at one end of the moving rod is threadedly connected with the positioning rod sliding on the surface of the jig body, and the limiting blocks on both sides of the entire moving rod are plugged and limited with the clamping plate on the surface of the jig body, so as to avoid the position deviation between the entire moving rod and the jig body. In the process of installing and fixing the positioning rod, the rotating groove opened on the surface of the positioning rod can be used for auxiliary operation, and the extrusion ring can be used to protect the positioning rod in the connecting groove to prevent the positioning rod from loosening and detaching. By operating the adjusting device, the entire jig body can be effectively and conveniently replaced and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of the MV chain tensioning fixture provided by the utility model;

[0024] Figure 2 for Figure 1 The structural schematic diagram of the regulating device shown;

[0025] Figure 3 for Figure 2 The schematic diagram of the split structure of the regulating device shown;

[0026] Figure 4 for Figure 1 A schematic diagram of a partial structure of the auxiliary device shown;

[0027] Figure 5 for Figure 4 Schematic diagram of the disassembled structure of the auxiliary device shown.

[0028] Numbers in the figure: 1. Mounting plate; 2. Mounting frame; 3. Rotating plate; 4. Adjusting device; 41. Limiting groove; 42. Baffle; 43. Limiting column; 44. Positioning plate; 45. Positioning frame; 46. Coil spring; 47. Block; 48. Friction pad; 49. Auxiliary plate; 5. Auxiliary device; 51. Positioning rod; 52. Extrusion ring; 53. Limiting block; 54. Block; 55. Connecting groove; 56. Positioning hole; 57. Rotating groove; 6. Fixture body; 7. Moving rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0031] See also Figures 1 to 5 The MV chain tensioning jig provided by the embodiment of the utility model includes: a mounting plate 1, the cross-section of the mounting plate 1 is "L"-shaped, mounting frames 2 are installed on the surfaces of both ends of the mounting plate 1, the surface of the mounting plate 1 is rotatably connected with a rotating plate 3, one side of the rotating plate 3 is rotatably connected with a moving rod 7, the arc surface of the moving rod 7 is slidably connected to the surface of the mounting frame 2, a jig body 6 is installed at one end of the moving rod 7, an adjusting device 4 is provided at a position on the surface of the mounting plate 1 corresponding to the mounting frame 2, and an auxiliary device 5 is provided on the surface of the jig body 6.

[0032] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 The adjusting device 4 includes two limit columns 43, the bottom ends of the two limit columns 43 are rotatably connected to the surface of the mounting plate 1, the cross-section of the limit column 43 is semicircular, and a limit groove 41 is provided at the bottom surface of the mounting frame 2 corresponding to the position of the limit column 43. The cross-section of the limit groove 41 is semicircular, and the inner wall of the limit groove 41 is snap-fitted with the surface of the limit column 43. A baffle 42 is fixedly connected to the surface of the mounting plate 1 corresponding to the side wall of the mounting frame 2. The cross-section of the baffle 42 is "L"-shaped, and the surface of the baffle 42 abuts against the mounting frame 2. The upper end bottom of the limit column 43 A positioning frame 45 is fixedly connected to the surface, and a positioning plate 44 is rotatably connected to the inner wall of the positioning frame 45. A clamping block 47 is fixedly connected to the end of the positioning plate 44 away from the limiting column 43. An auxiliary plate 49 is fixedly connected to the position of the mounting plate 1 corresponding to the clamping block 47, and the auxiliary plate 49 abuts against the clamping block 47. Coil springs 46 are sleeved on both ends of the inner wall of the positioning frame 45, and both ends of the coil spring 46 are fixedly connected to the positioning plate 44 and the positioning frame 45 respectively. A friction pad 48 is fixedly connected to the side where the clamping block 47 and the auxiliary plate 49 are close to each other, and the friction pad 48 is a rubber pad.

[0033] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 The auxiliary device 5 includes a connecting groove 55, which is provided on the surface of the fixture body 6. A positioning rod 51 is slidably penetrated through the inner wall of the connecting groove 55. A positioning hole 56 is provided on the surface of the moving rod 7. The inner wall of the positioning hole 56 is threadedly connected to the arc surface of the positioning rod 51. Both sides of the arc surface of the moving rod 7 are fixedly connected to the limiting blocks 53. Two clamping plates 54 are fixedly connected to the position of the limiting blocks 53 on the surface of the fixture body 6. The two clamping plates 54 are clamped with the surface of the limiting blocks 53. A rotating groove 57 is provided on the surface of one end of the positioning rod 51 away from the moving rod 7. The rotating groove 57 is a regular hexagonal groove. An extrusion ring 52 is fixedly connected to the inner wall of the connecting groove 55, and one side of the extrusion ring 52 is in contact with the positioning rod 51.

[0034] The working principle of the MV chain tensioning jig provided by the utility model is as follows: after the MV chain tensioning jig is operated for a long time, the jig body 6 on the entire surface of the operating table will be worn. At this time, the entire jig needs to be replaced to avoid inaccurate operations caused by the wear of the jig body 6. At this time, in order to replace and fix the mounting frame 2, the limiting grooves 41 opened on both sides of the mounting frame 2 are first connected to the limiting columns 43 rotating on the surface of the mounting plate 1. During this process, the two semicircular limiting columns 43 need to be deflected first to allow the entire mounting frame 2 to be inserted, and then the limiting columns 43 are rotated in the opposite direction to allow the limiting columns 43 to be clamped and fixed with the limiting grooves 41, and at the same time, they are abutted and fixed with the baffle 42 on the surface of the mounting plate 1.

[0035] During the clamping operation of the MV chain tensioning jig, in order to facilitate the replacement and limiting of the jig body 6, the positioning hole 56 opened at one end of the moving rod 7 is threadedly connected with the positioning rod 51 sliding on the surface of the jig body 6, and at the same time, the limit blocks 53 on both sides of the entire moving rod 7 are plugged and limited with the clamping plates 54 on the surface of the jig body 6. In the process of installing and fixing the positioning rod 51, the rotating groove 57 opened on the surface of the positioning rod 51 can be used for auxiliary operation, and the extrusion ring 52 can be used to protect the positioning rod 51 in the connecting groove 55, so that the entire jig body 6 can be effectively and conveniently replaced and fixed.

[0036] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. MV chain tensioning fixture, characterized in that: include: The mounting plate (1) has an L-shaped cross section, mounting frames (2) are mounted on both ends of the mounting plate (1), the surface of the mounting plate (1) is rotatably connected to a rotating plate (3), one side of the rotating plate (3) is rotatably connected to a moving rod (7), the arc surface of the moving rod (7) is slidably connected to the surface of the mounting frame (2), one end of the moving rod (7) is mounted with a fixture body (6), and an adjustment device (4) is provided on the surface of the mounting plate (1) at a position corresponding to the mounting frame (2), the adjustment device (4) comprising two limit posts (43), two The bottom ends of the limiting columns (43) are rotatably connected to the surface of the mounting plate (1); the cross section of the limiting columns (43) is semicircular; a limiting groove (41) is provided on the bottom surface of the mounting frame (2) at a position corresponding to the limiting columns (43); the cross section of the limiting groove (41) is semicircular; the inner wall of the limiting groove (41) is snap-fitted with the surface of the limiting column (43); a baffle (42) is fixedly connected to the surface of the mounting plate (1) at a position corresponding to the side wall of the mounting frame (2); the cross section of the baffle (42) is "L"-shaped; the surface of the baffle (42) is in contact with the side wall of the mounting frame (2).

2. The MV chain tensioning fixture according to claim 1, characterized in that: The bottom surface of the upper end of the limiting column (43) is fixedly connected to a positioning frame (45), the inner wall of the positioning frame (45) is rotatably connected to a positioning plate (44), one end of the positioning plate (44) away from the limiting column (43) is fixedly connected to a clamping block (47), and the surface of the mounting plate (1) is fixedly connected to an auxiliary plate (49) at a position corresponding to the clamping block (47), and the auxiliary plate (49) is in abutment with the clamping block (47).

3. The MV chain tensioning fixture according to claim 2, characterized in that: Both ends of the inner wall of the positioning frame (45) are sleeved with coil springs (46), and both ends of the coil spring (46) are fixedly connected to the positioning plate (44) and the positioning frame (45) respectively.

4. The MV chain tensioning fixture according to claim 2, characterized in that: The sides of the clamping block (47) and the auxiliary plate (49) that are close to each other are both fixedly connected with a friction pad (48), and the friction pad (48) is a rubber pad.

5. The MV chain tensioning fixture according to claim 1, characterized in that: The surface of the jig body (6) is provided with an auxiliary device (5), and the auxiliary device (5) comprises a connecting groove (55), and the connecting groove (55) is provided on the surface of the jig body (6), and a positioning rod (51) is slidably penetrated through the inner wall of the connecting groove (55), and a positioning hole (56) is provided on the surface of the moving rod (7), and the inner wall of the positioning hole (56) is threadedly connected to the arc surface of the positioning rod (51), and both sides of the arc surface of the moving rod (7) are fixedly connected to the limiting blocks (53), and two clamping plates (54) are fixedly connected to the position of the limiting blocks (53) on the surface of the jig body (6), and the two clamping plates (54) are clamped with the surface of the limiting blocks (53).

6. The MV chain tensioning fixture according to claim 5, characterized in that: A rotation groove (57) is formed on the surface of one end of the positioning rod (51) away from the moving rod (7), and the rotation groove (57) is a regular hexagonal groove.

7. The MV chain tensioning fixture according to claim 5, characterized in that: An extrusion ring (52) is fixedly connected to the inner wall of the connection groove (55), and one side of the extrusion ring (52) is in contact with the positioning rod (51).

Images