A chain plate type coil loading and unloading trolley tunnel cover plate

Abstract

The utility model discloses a kind of chain plate type upper unloading coil trolley tunnel cover plate, it is related to hot-rolled cold-rolled plate strip technical field, including side surface guide frame, sprocket, conveying chain, cover plate, top guide frame, pull rod and bottom guide frame and be set on the unloading coil trolley of conveying chain, conveying chain selects the conveying chain with L-shaped appendix plate, two conveying chains and a cover plate form a group of chain cover plate unit, sprocket is arranged above and below the two side walls of tunnel, the number of sprocket is four, sprocket plays the steering effect of chain cover plate, side surface guide frame is arranged on the side wall of tunnel, top guide frame is arranged above tunnel, bottom guide frame is arranged on the bottom surface of pit.The upper end of trolley top cover plate in the utility model is always a plane, when upper unloading coil trolley is transverse on track, chain cover plate moves along, run flexible, always guarantee that there is cover plate above tunnel, and the top surface of cover plate is flush with workshop terrace, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of hot-rolled and cold-rolled strip technology, specifically to a chain-plate type unloading coil trolley tunnel cover. Background Technology

[0002] In hot-rolled and cold-rolled strip mill lines, the loading and unloading trolleys are usually located in deep tunnels, especially the tunnels of guide post type or box type loading and unloading trolleys, which are deeper and longer. In order to ensure the safety of operators and the convenience of work, movable covers need to be installed on the tunnels in which the loading and unloading trolleys run, and the movable covers need to always cover the tunnels as the trolleys move forward and backward.

[0003] Currently, the commonly used movable covers for loading and unloading coil trolleys in tunnels are mostly telescopic movable covers, which have many drawbacks: Firstly, the cover plate itself is quite heavy, with a single cover plate weighing 50-80kg, and the overall assembly weighing over 500kg, making it difficult to handle and maintain; Secondly, during the folding process, the impact of the two cover plates will generate a relatively loud noise of 85-95 decibels, which seriously affects the working environment of the workshop. Thirdly, due to the adoption of a multi-layer folding and telescopic design, the cover plate unfolds into a stepped shape with a step height difference of 3-5cm, which not only affects the flatness of the workshop floor, but also easily causes people to trip, posing a safety hazard. Fourth, the rollers of the cover plate utilize trolley tracks and are generally positioned low, with a distance of 10-15cm from the zero plane (workshop floor), further increasing the safety risk.

[0004] Therefore, we propose a chain-plate type unloading trolley tunnel cover to solve the above problems.

[0005] Therefore, we propose a chain-plate type unloading trolley tunnel cover to solve the above problems. Utility Model Content

[0006] In view of the problems existing in the existing chain plate type unloading trolley tunnel cover, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a chain plate type unloading trolley tunnel cover, which solves the problems of the existing hot-rolled strip coil conveying process, where the movable cover at the top of the unloading trolley tunnel is heavy, noisy during folding, and has a low setting position, posing a safety hazard.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A chain-plate type unloading trolley tunnel cover includes a side guide frame, a sprocket, a conveyor chain, a cover plate, a top guide frame, a tie rod, and a bottom guide frame, as well as an unloading trolley mounted on the conveyor chain. The conveyor chain is selected with an L-shaped attachment plate, and two conveyor chains and one cover plate form a chain-plate unit. The sprockets are arranged above and below the two side walls of the tunnel. There are four sprockets, and the sprockets serve to turn the chain cover plate. The side guide frame is arranged on the side wall of the tunnel, the top guide frame is arranged above the tunnel, and the bottom guide frame is arranged on the bottom surface of the tunnel. The side guide frame, top guide frame and bottom guide frame are all used to guide and support the chain cover plate.

[0009] Preferably, multiple chain cover plate units are used to form a chain cover plate, the top of the chain cover plate is fixed to the unloading trolley, the bottom of the chain cover plate is connected together by a tie rod, and the chain cover plate is configured as a closed ring structure.

[0010] Preferably, the cover plate is made of patterned steel plate to prevent slipping. The cover plate is connected to the conveyor chain by bolts and can be disassembled for easy inspection and maintenance during production.

[0011] Preferably, the pull rod consists of a left-hand pull rod, a left-hand nut, a pull rod body, a right-hand nut, and a right-hand pull rod, and the tightness of the chain cover is adjusted by the pull rod.

[0012] Preferably, the length of the pull rod body is 30-50cm, and the lengths of the left-hand pull rod and the right-hand pull rod are both 15-20cm.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model, through multiple guide frames, sprockets, conveyor chains, cover plates, tie rods, and loading / unloading trolleys, ensures that the upper end of the cover plate on the top of the trolley is always a flat plane. When the loading / unloading trolley moves laterally on the track, the chain cover plate moves accordingly, making it flexible in operation and always ensuring that there is a cover plate above the tunnel. Moreover, the top surface of the cover plate is flush with the workshop floor. Compared with existing telescopic cover plates, it eliminates the difference in step height and the difference in distance from the ground, making it safe and reliable.

[0014] 2. This utility model, by providing a pull rod, allows for convenient adjustment of the tightness of the entire chain cover plate through the left-hand pull rod, left-hand nut, pull rod body, right-hand nut, and right-hand pull rod inside the pull rod, ensuring the stability of the cover plate's operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the present utility model Figure 1 Side view; Figure 3 This is a partial top view of the present invention; Figure 4 This is a schematic diagram of the connection structure of the pull rod of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Side guide frame; 2. Sprocket; 3. Conveyor chain; 4. Cover plate; 5. Top guide frame; 6. Loading / unloading trolley; 7. Tie rod; 7-1. Left-handed tie rod; 7-2. Left-handed nut; 7-3. Tie rod body; 7-4. Right-handed nut; 7-5. Right-handed tie rod; 8. Bottom guide frame. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model discloses a chain plate type loading and unloading coil trolley tunnel cover.

[0020] This utility model provides, for example Figure 1-4 The tunnel cover plate of the chain plate type loading and unloading trolley shown includes a side guide frame 1, a sprocket 2, a conveyor chain 3, a cover plate 4, a top guide frame 5, a tie rod 7, and a bottom guide frame 8, as well as an unloading trolley 6 set on the conveyor chain 3. The loading and unloading trolley 6 integrates loading and unloading functions and can complete the loading and unloading operations of coiled materials. The cover plate 4 is made of patterned steel plate with a thickness of 6mm, which can effectively play a role in anti-slip. The cover plate 4 is connected to the attachment plate of the conveyor chain 3 by anti-loosening bolts. The anti-loosening bolts adopt a double nut anti-loosening structure. This connection method makes it easy to disassemble and assemble the cover plate 4, which is convenient for inspection and maintenance during production. The conveyor chain 3 is a conveyor chain with an L-shaped attachment plate. Two conveyor chains 3 and one cover plate 4 form a chain cover plate unit. Multiple chain cover plate units form a chain cover plate. The top of the chain cover plate is fixed to the loading and unloading trolley 6, and the bottom of the chain cover plate is connected together by the tie rod 7. The chain cover plate is set in a closed ring structure. The sprockets 2 are arranged above and below the two side walls of the tunnel. There are four sprockets 2. The side guide frame 1 is arranged on the side wall of the tunnel. The top guide frame 5 is arranged above the tunnel. The bottom guide frame 8 is arranged on the bottom of the tunnel. The side guide frame 1, the top guide frame 5 and the bottom guide frame 8 are all used to guide and support the chain cover plate.

[0021] In order to adjust the tightness of the chain cover, such as Figure 4 As shown, the pull rod 7 consists of a left-hand pull rod 7-1, a left-hand nut 7-2, a pull rod body 7-3, a right-hand nut 7-4, and a right-hand pull rod 7-5. The pull rod body 7-3 of the pull rod 7 is 40cm long, and the left-hand pull rod 7-1 and the right-hand pull rod 7-5 are both 18cm long. The tightness of the chain cover is adjusted by the pull rod 7. When it is necessary to adjust the tightness of the chain cover, the operation steps are as follows: First, use a wrench to loosen the left-hand nut 7-2 and the right-hand nut 7-4. Then, rotate the left-hand pull rod 7-1 or the right-hand pull rod 7-5 as needed to lengthen or shorten the overall length of the pull rod 7. Finally, after the tightness is appropriate, use a wrench to tighten the left-hand nut 7-2 and the right-hand nut 7-4 to complete the adjustment and ensure the stable operation of the chain cover.

[0022] Working principle: When the loading and unloading trolley 6 moves laterally on the track, the chain cover plate will move along with the loading and unloading trolley 6 because the top of the chain cover plate is fixed to the loading and unloading trolley 6. During the movement, the sprocket 2 realizes the steering of the chain cover plate, and the four guide frames guide and support the chain cover plate, making the chain cover plate run flexibly. At the same time, since the chain cover plate is a closed ring structure and is composed of multiple chain cover plate units, it can always ensure that the tunnel is covered by the cover plate 4, and the top surface of the cover plate 4 is flush with the workshop floor, which greatly improves the safety and reliability of operation. At the same time, this device can also be applied to the safety protection of other deep pit equipment (such as the conveying tunnel of the steel rolling production line).

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A chain-plate type unloading trolley tunnel cover, comprising a side guide frame (1), a sprocket (2), a conveyor chain (3), a cover plate (4), a top guide frame (5), a tie rod (7), and a bottom guide frame (8), and an unloading trolley (6) disposed on the conveyor chain (3), characterized in that, The conveyor chain (3) is selected as a conveyor chain with an L-shaped attachment plate. Two conveyor chains (3) and a cover plate (4) form a chain cover plate unit. The sprockets (2) are arranged above and below the two side walls of the tunnel. There are four sprockets (2). The sprockets (2) serve to turn the chain cover plate. The side guide frame (1) is arranged on the side wall of the tunnel, the top guide frame (5) is arranged above the tunnel, and the bottom guide frame (8) is arranged on the bottom surface of the tunnel. The side guide frame (1), the top guide frame (5) and the bottom guide frame (8) are all used to guide and support the chain cover plate.

2. The chain-plate type unloading trolley tunnel cover according to claim 1, characterized in that, Multiple chain cover plate units are combined to form a chain cover plate. The top of the chain cover plate is fixed to the unloading trolley (6), and the bottom of the chain cover plate is connected together by a tie rod (7). The chain cover plate is configured as a closed ring structure.

3. The chain-plate type unloading trolley tunnel cover according to claim 1, characterized in that, The cover plate (4) is made of patterned steel plate with a thickness of 5-8mm to provide anti-slip function. The cover plate (4) is connected to the attachment plate of the conveyor chain (3) by bolts. The anti-loosening bolt adopts a double nut anti-loosening structure, which can be disassembled and is convenient for inspection and maintenance during production.

4. The chain-plate type unloading trolley tunnel cover according to claim 1, characterized in that, The pull rod (7) consists of a left-hand pull rod (7-1), a left-hand nut (7-2), a pull rod body (7-3), a right-hand nut (7-4), and a right-hand pull rod (7-5). The tightness of the chain cover is adjusted by the pull rod (7).

5. The chain-plate type unloading trolley tunnel cover according to claim 4, characterized in that, The length of the pull rod body (7-3) of the pull rod (7) is 30-50cm, and the lengths of the left-hand pull rod (7-1) and the right-hand pull rod (7-5) are both 15-20cm.

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