Quick chain tensioning device

Abstract

The utility model relates to a quick chain tensioning device which comprises an adjusting base, a fixing base is fixedly connected to one side of the adjusting base, a pressing rod is rotationally connected to one side of the front end of the fixing base, a fixing claw is arranged in the middle of the rear end of the fixing base, a sliding groove is formed in the middle of the adjusting base, and the pressing rod is rotationally connected to one side of the front end of the fixing base. According to the rapid chain tensioning device, through the arrangement of the pressing rod, the connecting rod, the sliding groove, the front side plate, the rear side plate, the short column, the adjusting claw and the fixing claw, when the rapid chain tensioning device needs to carry out maintenance tensioning operation on a chain, linkage adjustment can be conveniently carried out on the distance between a set of clamping claws through a four-connecting-rod structure; compared with a traditional chain tensioning mode, the chain tensioning device can achieve tensioning by one person and installation of chain links, and manpower and working time can be greatly saved.

Description

Technical Field

[0001] The utility model relates to a chain quick tensioning device, belonging to the technical field of steel rolling equipment. Background Art

[0002] The transportation and transmission of finished rolled steel products are mostly chain transmission, which is used in large quantities. Chain replacement or maintenance is the most common and frequent maintenance operation in daily maintenance. During the chain maintenance process, the chain needs to be tightened when installing the chain link to ensure that the chain maintains appropriate tightness during the subsequent transportation process to avoid abnormal meshing, tooth jumping and chain derailment when the chain is used. In the prior art, when the chain needs to be tightened, the traditional tightening method is time-consuming and labor-intensive, and requires more manpower, low work efficiency, and low efficiency of the chain tightening process. The chain tightening requires more personnel, usually 3-5 people are required to complete the chain tightening operation, and the chain tightening and chain link installation time is long, which takes about 60 minutes on average. Therefore, a chain fast tightening device is proposed to address the above problems. Utility Model Content

[0003] The utility model aims to provide a fast chain tensioning device to solve the problems of more manpower, longer time consumption and low efficiency in chain maintenance in the prior art mentioned in the background art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A chain quick tensioning device comprises an adjusting base, one side position of the adjusting base is fixedly connected to a fixed base, and a pressure rod is rotatably connected to a side position of the front end of the fixed base, a fixing claw is provided at the middle position of the rear end of the fixed base, a sliding groove is provided in the middle position of the adjusting base, and a front plate is provided directly in front of the sliding groove, rear plates are respectively provided at the rear of the sliding groove and at one end of the fixing claw, the rear plate and the front plate arranged at the rear position of the sliding groove are connected by a short column, one end of the rear plate arranged at the rear position of the sliding groove is fixedly connected to an adjusting claw, and a connecting rod is rotatably connected to a side position of the front end of the front plate.

[0006] Preferably, the surface of the fixed base is provided with adjustment mounting holes, and the adjustment mounting holes are arranged in an equidistant structure along the horizontal direction.

[0007] Preferably, the fixing claw and the adjusting claw are arranged at left and right positions opposite to each other, and teeth are respectively provided at the positions on the opposite sides of the adjusting claw and the fixing claw.

[0008] Preferably, the connecting rod and the pressure rod are rotatably connected, and an end of the pressure rod is externally covered with an anti-slip sheath.

[0009] Preferably, the short column is arranged on the inner side of the slide groove, and the short column is slidably connected to the slide groove and the adjustment base, the pressure rod is connected through the connecting rod, the front plate, the short column, the rear plate and the adjustment claw, and the first stop block and the second stop block are respectively provided on both sides of the interior of the slide groove.

[0010] Beneficial effect: Compared with the prior art, the utility model adopts a four-link structure, and through the arranged pressure rod, connecting rod, slide groove, front plate, rear plate, short column, adjustment claw and fixed claw, when the transportation operation of the finished steel products of the rolling line is suspended and the chain needs to be repaired and tightened, after the adjustment claw and the fixed claw respectively fit and clamp a group of chain rollers, the four-link structure composed of the pressure rod, connecting rod, slide groove, front plate, rear plate and short column is used to link and adjust the distance between a group of clamping claws, so that the whole device can slide through a group of clamping claws. Dynamic adjustment can realize rapid tightening of the chain. Compared with the traditional chain tightening method, this device can realize the operation of tightening and chain link installation by one person, which can greatly save manpower and working time, save manpower investment in chain maintenance, and improve maintenance efficiency by 3 times, reducing the economic cost required for chain maintenance. According to statistics, more than 100 chains are repaired and replaced each year, with a workload of about 500 people. The use of this tool is expected to save 300 people. Calculated at 400 yuan per person, the annual benefit is 300×400-500=110,500 yuan.

[0011] The utility model places the adjusting claw and the fixing claw on a fixed support, designs a slide groove so that the adjusting claw slides in the slide groove, and can easily achieve the tightening action. In addition, multiple fixing holes are added on the fixed support, and the distance between the fixing claw and the adjusting claw is designed to be an integral multiple of the pitch of chains of different specifications, so that the tension of the chain is fully connected to the rod after the pressure rod is basically flattened, and one person can complete the tightening and chain link installation operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall back structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the short column structure of the utility model.

[0015] In the figure: 1. Adjustment base; 2. Pressure rod; 3. Connecting rod; 4. Slide groove; 5. Front plate; 6. Rear plate; 7. Adjustment claw; 8. Fixing claw; 9. Adjustment mounting hole; 10. Teeth; 11. Anti-slip cover; 12. First stop block; 13. Second stop block; 14. Fixed base; 15. Short column. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] See also Figure 1-3 The utility model provides a chain quick tensioning device, comprising an adjusting base 1, a fixed base 14 is fixedly connected to one side of the adjusting base 1, and a pressure rod 2 is rotatably connected to one side of the front end of the fixed base 14, a fixing claw 8 is provided at the middle position of the rear end of the fixed base 14, a slide groove 4 is provided in the middle position of the adjusting base 1, and a front plate 5 is provided in the front position of the slide groove 4, a rear plate 6 is provided behind the slide groove 4 and at one end of the fixing claw 8, the rear plate 6 arranged at the rear position of the slide groove 4 and the front plate 5 are connected by a short column 15, one end of the rear plate 6 arranged at the rear position of the slide groove 4 is fixedly connected to an adjusting claw 7, and a connecting rod 3 is rotatably connected to one side of the front end of the front plate 5.

[0018] like Figure 1 and Figure 2 As shown, the surface of the fixed base 14 is provided with adjustment mounting holes 9, and the adjustment mounting holes 9 are arranged in an equidistant structure along the horizontal direction. A single adjustment mounting hole 9 is fixedly connected with a bolt of the rear plate 6 connected to the fixed claw 8. By respectively providing a plurality of adjustment mounting holes 9 on the surface of the fixed base 14, the fixed claw 8 can be conveniently installed in multiple positions, so that the device can adjust the spacing between the fixed claw 8 and the adjustment claw 7 by changing the installation position of the fixed claw 8; the fixed claw 8 and the adjustment claw 7 are relatively arranged in the left and right positions, and the adjustment claw 7 and the fixed claw 8 are respectively provided with teeth 10 on the opposite side. Since the V-shaped grooves provided on one side of the adjustment claw 7 and the fixed claw 8 are respectively provided with teeth 10, this structural setting can increase the friction force when the adjustment claw 7 and the fixed claw 8 clamp a group of chain rollers respectively; the connecting rod 3 and the pressure rod 2 are rotatably connected, and one end of the pressure rod 2 is provided with an anti-skid sheath 11 on the outside. When the pressure rod 2 is tightly gripped to adjust the four-bar structure in linkage, the setting of the anti-skid sheath 11 can increase the anti-skid ability of the local position of the pressure rod 2.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the short column 15 is arranged on the inner side of the slide groove 4, and the short column 15 is slidably connected with the adjustment base 1 through the slide groove 4, the pressure rod 2 is connected through the connecting rod 3, the front plate 5, the short column 15, the rear plate 6 and the adjustment claw 7, and the first stop block 12 and the second stop block 13 are respectively provided on both sides of the interior of the slide groove 4. When the four-bar structure realizes sliding adjustment with the adjustment claw 7, the short column 15 limited by the front plate 5 and the rear plate 6 will realize synchronous sliding in the slide groove 4, thereby providing guiding assistance to the sliding action of the adjustment claw 7.

[0020] Working process: In the process of daily transportation of finished rolled steel products, when the chain needs to be repaired and tightened, as the partial links of the chain are removed, the adjusting claw 7 and the fixed claw 8 can be respectively inserted into the gaps reserved between the adjacent groups of rollers on the chain, and at the same time, the relative group of chain rollers are clamped by the V-shaped clamping grooves provided on one side of the adjusting claw 7 and the fixed claw 8. Then, when the operator holds the fixed base 14 tightly with one hand and rotates the pressure rod 2 with the other hand, the four-bar structure composed of the pressure rod 2, the connecting rod 3, the slide 4, the front plate 5, the rear plate 6 and the short column 15 will slide horizontally inside the slide 4 with the adjusting claw 7 through the front plate 5, the rear plate 6 and the short column 15 after being stressed, so that the adjusting claw 7 can gradually approach the fixed claw 8, so that the entire device can easily realize the tightening action of the chain, and only one person is needed to complete the tightening and subsequent chain link installation operations during the entire tightening process.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chain quick tensioning device, comprising an adjustment base (1), characterized in that: A fixed base (14) is fixedly connected to one side of the adjustment base (1), and a pressure rod (2) is rotatably connected to one side of the front end of the fixed base (14). A fixed claw (8) is provided at the middle position of the rear end of the fixed base (14). A slide groove (4) is provided at the middle position of the adjustment base (1), and a front plate (5) is provided directly in front of the slide groove (4). A rear plate (6) is provided at the rear of the slide groove (4) and at one end of the fixed claw (8). The rear plate (6) and the front plate (5) arranged at the rear position of the slide groove (4) are connected via a short column (15). An adjustment claw (7) is fixedly connected to one end of the rear plate (6) arranged at the rear position of the slide groove (4), and a connecting rod (3) is rotatably connected to one side of the front end of the front plate (5).

2. A chain quick tensioning device according to claim 1, characterized in that: The surface of the fixed base (14) is provided with adjustment mounting holes (9), and the adjustment mounting holes (9) are arranged in an equidistant structure along the horizontal direction, and a single adjustment mounting hole (9) is fixedly connected to the rear plate (6) connected to the fixing claw (8) by bolts.

3. A chain quick tensioning device according to claim 1, characterized in that: The fixed claw (8) and the adjusting claw (7) are arranged at left and right positions relative to each other, and teeth (10) are respectively arranged at the positions of the adjusting claw (7) and the fixed claw (8) at the opposite sides.

4. A chain quick tensioning device according to claim 1, characterized in that: The connecting rod (3) and the pressure rod (2) are rotatably connected, and an anti-slip sheath (11) is externally sleeved on one end of the pressure rod (2).

5. A chain quick tensioning device according to claim 1, characterized in that: The short column (15) is arranged on the inner side of the slide groove (4), and the short column (15) is slidably connected to the adjustment base (1) through the slide groove (4); the pressure rod (2) is connected through the connecting rod (3), the front plate (5), the short column (15), the rear plate (6) and the adjustment claw (7); and a first stopper (12) and a second stopper (13) are respectively arranged on both sides of the inner side of the slide groove (4).

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