Drag chain droop supporting device

Abstract

The utility model relates to a drag chain droop supporting device, and aims to solve the problems that a bracket is directly added on a drag chain, although the drag chain is large in specification and size, the structural performance and the mechanical performance of the drag chain are affected to a certain extent no matter the bracket is connected through a flange or welded, and the drag chain is damaged. The drag chain comprises a drag chain body, the upper end of the drag chain body is connected with a feeding trolley, a hydraulic cylinder drives a limiting frame to move upwards, so that parts on the inner side of the limiting frame are driven to move upwards, the surface of the top of a roller can be flush with the bottom of the upper portion of the drag chain body conveniently, and the conveying trolley is arranged on the upper portion of the drag chain body. And then the electric push rod effectively drives the shaft rod and the roller to move, so that the roller moves to the bottom above the drag chain body, the suspended drag chain body is effectively supported, the drooping possibility is reduced, and when the closed end of the left side of the drag chain body is about to make contact with the roller, the electric push rod can drive the shaft rod and the roller to return, and interference to operation of the drag chain body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chain auxiliary tools, in particular to a drag chain drooping support device. Background Art

[0002] Drag chains are used in reciprocating motion occasions and can play a role in traction and protection of built-in cables, oil pipes, air pipes, water pipes, etc. Industrial application drag chains with frequent reciprocating motions with a bending radius greater than 300mm and a length greater than 2000mm are particularly suitable for use in high-speed miter saw drag chains in the wood-based panel industry. However, since the drag chain needs to work in a state of frequent reciprocating motion and is relatively long, the middle part of the drag chain will sag under the gravity of itself and the internal cables, and the drooping chain links will constantly change during the motion, which can easily cause the chain links of the drag chain to wear and break, so a support device is required to support the drooping part.

[0003] Patent announcement number CN203998379U discloses a roller device for preventing a drag chain from sagging, including a drag chain, a bracket arranged on the drag chain, the bracket including a vertical pole, a connecting rod arranged between the ends of the vertical pole, rollers arranged at both ends of the connecting rod, and roller tracks arranged corresponding to the rollers. The utility model has a simple and practical structure, the bracket is easy to make and install, the deformation resistance of the drag chain can be improved during the movement, and it does not interfere with the existing equipment, thereby improving the service life of the drag chain.

[0004] However, the above-mentioned roller device for preventing the drag chain from sagging still has the following shortcomings:

[0005] The above bracket is directly added to the drag chain. Although the specifications and dimensions of the drag chain are large, the newly connected bracket, whether it is flange connected or welded, will affect the structural performance and mechanical properties of the drag chain to a certain extent, and easily shorten the service life of the original drag chain. In view of this, we propose a drag chain drooping support device. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a drag chain drooping support device to solve the technical problem that the above-mentioned bracket is directly added to the drag chain. Although the specifications and dimensions of the drag chain are large, the newly connected bracket, whether it is flange connection or welding, will affect the structural performance and mechanical properties of the drag chain to a certain extent, and easily shorten the service life of the original drag chain.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a drag chain drooping support device, including a drag chain body, the upper end of the drag chain body is connected to a feeding trolley, a drag chain seat rail is arranged on the outer side of the lower horizontal part of the drag chain body, a positioning component is engaged with the inner side of the front end extension of the drag chain seat rail, and an adjustment mechanism is arranged on the top of the positioning component;

[0008] The adjustment mechanism includes a hydraulic cylinder, which is arranged on the top of the positioning component. A group of hydraulic cylinders are provided, and the movable end of the hydraulic cylinder is connected to a limiting frame. A limiting cylinder is fixed on the outer surface of the limiting frame. An electric push rod is embedded in the limiting cylinder. The movable end of the electric push rod is connected to a shaft rod, and a roller is sleeved on the outside of the shaft rod.

[0009] Preferably, the limiting frame forms a lifting structure through a hydraulic cylinder and a positioning assembly, and the limiting frame is in an inverted L shape.

[0010] Preferably, the electric push rod and the shaft rod are fixedly connected, and the shaft rod forms a telescopic structure through the electric push rod and the limiting cylinder.

[0011] Preferably, the roller is movably sleeved outside the shaft, and the shaft is H-shaped.

[0012] Preferably, the positioning assembly comprises a positioning frame, the positioning frame is engaged in the interior of the drag chain seat rail, and the positioning frame and the drag chain seat rail are connected by bolts.

[0013] Preferably, a slot is provided inside the front end extension of the drag chain seat rail, and the bottom end of the positioning frame is matched and engaged with the slot.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model effectively drives the limit frame to move upward through the hydraulic cylinder, thereby driving the components inside the limit frame to move upward, so as to facilitate the top surface of the roller to be flush with the bottom above the drag chain body, and then effectively drives the shaft rod and the roller to move through the electric push rod, so that the roller moves to the bottom above the drag chain body, effectively supporting the suspended drag chain body and reducing the possibility of sagging. When the closed end of the left side of the drag chain body is about to contact the roller, the electric push rod can drive the shaft rod and the roller to return to their positions to avoid interfering with the operation of the drag chain body.

[0016] 2. The matching engagement between the bottom end of the positioning frame and the card slot in the utility model can quickly realize the positioning of the positioning frame. At the same time, the positioning frame is connected to the drag chain seat rail by bolts. The positioning frame can be disassembled by removing the bolts later, making the disassembly and assembly of the positioning frame more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the local adjustment structure of the adjustment mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the disassembly structure of the utility model;

[0020] In the figure: 1. Drag chain body; 2. Feeding trolley; 3. Drag chain seat rail; 4. Positioning assembly; 5. Adjustment mechanism;

[0021] 401, positioning frame; 402, bolt;

[0022] 501, hydraulic cylinder; 502, limit frame; 503, limit cylinder; 504, electric push rod; 505, shaft rod; 506, roller. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] A drag chain droop support device, see Figures 1 to 3 , including a drag chain body 1, a feeding trolley 2 is connected to the upper end of the drag chain body 1, a drag chain seat rail 3 is arranged on the outer side of the lower horizontal part of the drag chain body 1, a positioning component 4 is engaged with the inner side of the front end extension of the drag chain seat rail 3, and an adjustment mechanism 5 is arranged on the top of the positioning component 4;

[0025] The adjustment mechanism 5 includes a hydraulic cylinder 501, which is arranged on the top of the positioning component 4. The hydraulic cylinder 501 is provided with a group. The movable end of the hydraulic cylinder 501 is connected to the limiting frame 502, wherein the limiting frame 502 forms a lifting structure with the positioning component 4 through the hydraulic cylinder 501, and the limiting frame 502 is in an inverted L shape. A limiting cylinder 503 is fixedly arranged on the outer surface of the limiting frame 502, and an electric push rod 504 is embedded in the limiting cylinder 503. The movable end of the electric push rod 504 is connected to the shaft rod 505. Further, the electric push rod 504 and the shaft rod 505 are fixedly connected, and the shaft rod 505 forms a telescopic structure with the limiting cylinder 503 through the electric push rod 504. A roller 506 is sleeved on the outside of the shaft rod 505. Further, the roller 506 is movably sleeved on the outside of the shaft rod 505, and the shaft rod 505 is in an H shape. The utility model uses the hydraulic cylinder 501 to effectively drive the limit frame 502 to move up, thereby driving the components inside the limit frame 502 to move up, thereby facilitating the top surface of the roller 506 to be flush with the bottom above the drag chain body 1, and then the electric push rod 504 effectively drives the shaft rod 505 and the roller 506 to move, so that the roller 506 moves to the bottom above the drag chain body 1, effectively supporting the suspended drag chain body 1 and reducing the possibility of sagging. When the closed end of the left side of the drag chain body 1 is about to contact the roller 506, the electric push rod 504 can drive the shaft rod 505 and the roller 506 to return to their original position to avoid interfering with the operation of the drag chain body 1.

[0026] It is worth noting that the positioning assembly 4 includes a positioning frame 401, which is engaged with the inside of the drag chain seat rail 3, and the positioning frame 401 and the drag chain seat rail 3 are connected by bolts 402, wherein a slot is provided inside the front end extension of the drag chain seat rail 3, and the bottom end of the positioning frame 401 is matched and engaged with the slot. The matching engagement between the bottom end of the positioning frame 401 and the slot in the utility model can quickly realize the positioning of the positioning frame 401, and at the same time, the positioning frame 401 and the drag chain seat rail 3 are connected by bolts 402, and the positioning frame 401 can be disassembled by disassembling the bolts 402 later, making the disassembly and assembly of the positioning frame 401 more convenient.

[0027] Working principle: The operator engages the positioning frame 401 in the inner groove of the front end extension of the drag chain seat rail 3 to complete the preliminary positioning of the positioning frame 401, and then connects the positioning frame 401 and the drag chain seat rail 3 through the bolt 402 to complete the overall positioning of the positioning frame 401, and then drives the limit frame 502 to move up through the hydraulic cylinder 501, thereby driving the parts inside the limit frame 502 to move up, so as to facilitate the top surface of the roller 506 to be flush with the bottom above the drag chain body 1, and then drives the shaft rod 505 and the roller 506 to move through the electric push rod 504, so that the roller 506 moves to the bottom above the drag chain body 1, supports the suspended drag chain body 1, and reduces the possibility of sagging. When the closed end of the left side of the drag chain body 1 is about to contact the roller 506, the shaft rod 505 and the roller 506 can be driven by the electric push rod 504 to return to their positions to avoid interfering with the operation of the drag chain body 1, and the next roller 506 is extended again after the upper roller 506 returns to its position.

[0028] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A drag chain drooping support device, comprising a drag chain body (1), characterized in that: The upper end of the drag chain body (1) is connected to a feeding trolley (2), a drag chain seat rail (3) is provided on the outer side of the lower horizontal portion of the drag chain body (1), a positioning component (4) is engaged with the inner side of the front end extension portion of the drag chain seat rail (3), and an adjustment mechanism (5) is provided on the top of the positioning component (4); The adjustment mechanism (5) comprises a hydraulic cylinder (501), wherein the hydraulic cylinder (501) is arranged at the top of the positioning assembly (4), and the hydraulic cylinder (501) is provided with a group, wherein the movable end of the hydraulic cylinder (501) is connected to a limiting frame (502), a limiting cylinder (503) is fixedly arranged on the outer surface of the limiting frame (502), an electric push rod (504) is embedded in the limiting cylinder (503), the movable end of the electric push rod (504) is connected to a shaft rod (505), and a roller (506) is sleeved on the outer surface of the shaft rod (505).

2. The drag chain drooping support device according to claim 1, characterized in that: The limiting frame (502) forms a lifting structure through a hydraulic cylinder (501) and a positioning assembly (4), and the limiting frame (502) is in an inverted L shape.

3. The drag chain drooping support device according to claim 1, characterized in that: The electric push rod (504) and the shaft rod (505) are fixedly connected, and the shaft rod (505) forms a telescopic structure through the electric push rod (504) and the limiting cylinder (503).

4. The drag chain drooping support device according to claim 1, characterized in that: The roller (506) is movably sleeved outside the shaft (505), and the shaft (505) is H-shaped.

5. The drag chain drooping support device according to claim 1, characterized in that: The positioning assembly (4) comprises a positioning frame (401), the positioning frame (401) is engaged inside the drag chain seat rail (3), and the positioning frame (401) and the drag chain seat rail (3) are connected via bolts (402).

6. The drag chain drooping support device according to claim 5, characterized in that: A slot is provided inside the front end extension of the drag chain seat rail (3), and the bottom end of the positioning frame (401) is matched and engaged with the slot.

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