Chain plate machine tensioning device
By designing a chain plate machine tensioning device including horizontal beam, tension hook, cable-staggered holding part and self-locking hook, the problem of inconvenience in tensioning and disassembly laborious when replacing the chain plate, it has been solved, and more efficient chain plate replacement and production progress have been achieved.
Patent Information
- Application Number
- CN202421484507.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-27
AI Technical Summary
When replacing the chain plate, it is difficult to tighten easily and quickly, and disassembling the shaft pins is time-consuming and labor-intensive, resulting in low working efficiency and affecting production progress.
A chain plate machine tensioning device is designed, including a horizontal cross beam, at least two tension hooks, an obliquely upward pulling portion and a movable self-locking hook. Through the combination of these components, stable tensioning of the chain plate and convenient disassembly of the shaft pin are achieved.
Through this device, the stress between the chain plates can be effectively relieved, the interpulsion and insertion of the intermediate shaft pin can be facilitated, the tensioning effect can be ensured, and the failure of the chain chain can be avoided, the efficiency of replacing the chain plate can be improved, and the maintenance time can be shortened.
Smart Images
Figure CN222683393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of metallurgical equipment maintenance, in particular to a tensioning device for a chain plate machine. Background Art
[0002] The chain plate machine is the abbreviation of the chain plate conveyor. Specifically, a plate-type component is installed between the chains on both sides to transport irregular items. It is a commonly used conveying tool in steel plants. It has the advantages of wide application range, large conveying capacity, high strength of the traction chain plate, and long-distance conveying. In the sintering process of the actual production process, the chain plate machine mainly crushes the sintered cakes produced by the sintering machine and conveys them to the ring cooler for cooling. Since the temperature of the hot sintered ore can reach 800-950℃, the chain plate machine is subjected to high temperature during operation, and the chain plate is deformed and worn due to heat. Regular maintenance and replacement of the chain plate is required. In the process of replacing the chain plate, the front and rear chain plates are generally tightened with a reverse chain, and then the shaft pin between the chain plates to be replaced is disassembled and installed, and the belt replacement chain plate is removed. Due to the long overall length of the chain plate machine, there is tensile stress between the chain plates, and it is not easy to remove the shaft pin. At the same time, it is not easy to insert the pin into the connection of the chain plate after the chain plate is updated. Since chain conveyors are generally set low to the ground and the space between the upper and lower chain conveyors is narrow, workers cannot stretch their legs during work and only use the fall chain for tensioning. This often causes the chain to get stuck, which is time-consuming and labor-intensive, and has low work efficiency. Not only is it difficult to replace the chain efficiently, but the chain jam will also delay production progress. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a chain plate machine tensioning device, aiming to solve the problem that it is difficult to tighten the chain plate conveniently and quickly using only a fall chain, and it is time-consuming and laborious to replace the chain plate and disassemble the shaft pin.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a chain plate machine tensioning device, including a horizontal beam, at least two tensioning hooks are arranged under the horizontal beam, the spacing between the tensioning hooks is adapted to the spacing between the pin shafts of the chain plate machine, the tensioning hook is a semi-enclosed arc hook with a central angle of 180°, and a pulling part obliquely upward is arranged on one end of the tensioning hook opening direction on the horizontal beam, and a through hole for connecting a fall chain is opened in the middle of the rear end of the tensioning part.
[0005] A further improvement of the technical solution of the utility model is that a movable self-locking hook is built into the tensioning hook, a spring buckle is arranged at the tail end of the self-locking hook, and an opening for the spring buckle to pop out is arranged on the side of the tensioning hook.
[0006] A further improvement of the technical solution of the utility model is that a rubber anti-skid pad in contact with the pin is arranged on the inner side of the tensioning hook.
[0007] A further improvement of the technical solution of the utility model is that the holding portion is inclined upward at an angle of 30°.
[0008] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is: by setting a chain plate tensioning device, the two devices can be used in combination, and the two devices can be arranged on both sides of the chain plate to be replaced, and tightened from both sides to the middle, so as to relieve stress and facilitate the insertion and withdrawal of the middle shaft pin. By setting at least two semi-enclosed tensioning hooks, the tensioning effect can be guaranteed, and the two shaft pins can be well fixed. By setting an oblique upward holding part to cooperate with the through hole, the chain can be tightened more firmly by the tensioning device to avoid the failure of the chain being stuck. At the same time, the oblique upward position can make room for replacing the lower chain plate, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.
[0010] Figure 1 It is a structural schematic diagram of the tensioning device of the utility model;
[0011] Among them, 1. pin shaft, 2. horizontal beam, 3. holding part, 4. through hole, 5. tensioning hook, 6. self-locking hook. DETAILED DESCRIPTION
[0012] The present invention is further described in detail below in conjunction with the embodiments:
[0013] like Figure 1The figure shows a schematic diagram of the structure of a tensioning device for a chain plate machine, the main body of which is a horizontal beam 2, which is a straight beam and can ensure parallelism with the chain of the chain plate machine. At least two tensioning hooks 5 are arranged below the horizontal beam 2. In this embodiment, the number of tensioning hooks 5 is 2, and the spacing between each tensioning hook 5 is adapted to the spacing between the pins 1 on the side of the chain plate machine in actual production work, so that two adjacent tensioning hooks 5 can be simultaneously hung on two adjacent shaft pins 1. In order to ensure stable hanging, each tensioning hook 5 can be tightened firmly in cooperation with the fall chain in the later stage. The tensioning hook 5 is a semi-enclosed arc hook with a central angle of 180°, which can be hung on the shaft pin 1 to ensure semi-enclosure of the shaft pin 1 and ensure strength during the later tightening. At the same time, in order to ensure stability during tensioning, a rubber anti-skid pad is provided on the inner side of the tensioning hook 5 in direct contact with the pin 1. On the one hand, it increases the friction force to make the fixation more firm during tensioning. At the same time, the rubber anti-skid pad is soft in texture and has deformation space. As a transitional intermediate layer for the tensioning hook 5 and the pin 1 to contact, it can also play a protective role and reduce the damage to the tensioning hook 5 and the pin 1 during the continuous tensioning and debugging process. An oblique upward holding part 3 is provided on one end of the opening direction of the tensioning hook 5 on the horizontal beam 2, and a through hole 4 for connecting the fall chain is provided in the middle of the tail end of the holding part. In this embodiment, the oblique upward inclination angle is 30°. The oblique upward design can make room for replacing the lower chain plate and facilitate the operation.
[0014] In order to ensure the stability of the tensioning hook 5 when it is sleeved on the pin 1, a self-locking hook 6 is arranged inside the tensioning hook 5 to better wrap the pin 1 and make the locking stronger when tightened. The curvature of the self-locking hook 6 is consistent with that of the tensioning hook 5. A guide groove for the self-locking hook 6 to move is arranged inside the tensioning hook 5. A spring buckle is arranged at the tail end of the self-locking hook 6. The spring buckle and the self-locking hook 6 are simultaneously pressed and arranged in the guide groove of the tensioning hook 5. The length of the self-locking hook 6 is longer than the guide groove, and a part of it will be left outside the guide groove. The spring buckle at the tail end of the self-locking hook 6 is pressed on the guide groove to achieve relative fixation. The operator can adjust the extended part of the self-locking hook 6 by pulling the part of the self-locking hook 6 outside the guide groove. An opening for the spring buckle to pop out is opened on the side of the tensioning hook 5. When the self-locking hook 6 is pulled to be fully extended, the spring buckle pops out from the opening to achieve a completely fixed card. The self-locking hook 6 is fully unfolded, and the wrapping effect on the pin shaft 1 is also better. When the tension is completed and the self-locking hook 6 is retracted, the spring buckle can be pressed into the opening, and the protruding part can be pulled to continue the self-locking hook 6 and the spring buckle in the guide groove to realize the recovery of the self-locking hook 6.
[0015] When the present invention is used to tighten the chain plate machine and then replace the chain plate and the pin, specifically, two chain plate tensioning devices disclosed in the present invention with the same configuration are symmetrically arranged on the left and right sides of the chain plate to be replaced. The upwardly inclined holding parts 3 of the two devices are close to each other in the middle. Each tensioning hook 5 is mounted on the pins 1 on both sides of the chain plate to be replaced, so that the self-locking hook 6 is fully unfolded, and the spring buckle pops up and is stuck in the open hole. The through holes of the holding parts 3 of the two devices are mainly used to hang the fall chain. With the help of the fall chain, the two devices are brought close to the middle at the same time, the chain plate is tightened and loosened, and the tightness of the fall chain is adjusted to remove the pin and chain plate, and the pin is put on after the new chain plate is installed. The device has a simple structure and is easy to operate. The installation position can be flexibly adjusted according to the actual situation on site, which can greatly improve labor efficiency and shorten maintenance time.
[0016] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.
Claims
1. A chain conveyor tensioning device, characterized in that: The invention comprises a horizontal beam (2), at least two tensioning hooks (5) are arranged below the horizontal beam (2), the spacing between the tensioning hooks (5) is matched with the spacing between the pin shafts (1) of the chain plate machine, the tensioning hook (5) is a semi-enclosed arc hook with a central angle of 180°, and a holding portion (3) inclined upward is arranged at one end of the tensioning hook (5) on the horizontal beam (2) in the opening direction, and a through hole (4) for connecting a fall chain is opened in the middle of the rear end of the tensioning hook (3).
2. A chain conveyor tensioning device according to claim 1, characterized in that: The tensioning hook (5) has a movable self-locking hook (6) built in, a spring buckle is arranged at the tail end of the self-locking hook (6), and an opening for the spring buckle to pop out is provided on the side of the tensioning hook (5).
3. The tensioning device of a chain conveyor according to claim 1, characterized in that: A rubber anti-skid pad in contact with the pin shaft (1) is arranged on the inner side of the tension hook (5).
4. The tensioning device of a chain conveyor according to claim 1, characterized in that: The holding portion (3) is inclined upward at an angle of 30°.