A conveyor chain maintenance tool

Abstract

The utility model provides a kind of conveying chain maintenance tool, it is related to electrolytic aluminium production equipment dismounting tool field, conveying chain maintenance tool includes first clamping arm, second clamping arm and force bar, first clamping arm and second clamping arm are crossly set and are rotationally connected in cross position, and one end of first clamping arm and second clamping arm is equipped with first clamping part and second clamping part respectively, first clamping part and second clamping part are used to jointly clamp the two sprocket of conveying chain, and force bar is connected to one end of first clamping arm away from first clamping part.When using, hold force bar, the first clamping part of first clamping arm and the second clamping part of second clamping arm are respectively overlapped on the sprocket of the sprocket or chain plate end of the chain to be replaced, then force bar is lifted upward, two sprockets are clamped and make it mutually close, so that the connecting place of the sprocket or chain plate to be replaced is relaxed, pin shaft is removed to replace chain plate or sprocket, and the whole process is simple to operate.

Description

Technical Field

[0001] This utility model relates to the field of disassembly and assembly tools for electrolytic aluminum production equipment, and more specifically, to a conveyor chain maintenance tool. Background Technology

[0002] In the electrolytic aluminum industry, the molten aluminum produced by the electrolytic cell is usually formed by the casting process. This process involves pouring the molten aluminum into a mold and using a conveyor chain to transport the mold containing the molten aluminum. During operation, the conveyor chain repeatedly rubs against the mold, resulting in severe wear and tear, requiring regular replacement of sprockets or chain plates.

[0003] Because the conveyor chain is thick and long, and is under tension during operation, it is usually necessary to use equipment such as hand hoists, iron wires or steel wire ropes to pull the chains at both ends of the part to be replaced closer together when replacing sprockets or chain links, so as to facilitate the disassembly and assembly of the pins of the part to be replaced. However, this method is time-consuming and labor-intensive, the operation process is cumbersome, and the maintenance efficiency is low. Utility Model Content

[0004] This utility model aims to solve the technical problems of cumbersome and inefficient maintenance of conveyor chains in related technologies.

[0005] This utility model provides a conveyor chain maintenance tool, including a first clamping arm, a second clamping arm, and a force-applying rod. The first clamping arm and the second clamping arm are arranged crosswise and rotatably connected at the crosswise position. One end of the first clamping arm and the second clamping arm are respectively provided with a first clamping part and a second clamping part. The first clamping part and the second clamping part are used to jointly clamp two sprockets of the conveyor chain. The force-applying rod is connected to the end of the first clamping arm away from the first clamping part.

[0006] Optionally, the conveyor chain maintenance tool further includes a stepping structure, which is disposed on the second clamping arm and located at the intersection of the second clamping arm and the first clamping arm and between the second clamping portion.

[0007] Optionally, the stepping structure is disposed near the second clamping part and located on the side of the second clamping arm away from the first clamping part.

[0008] Optionally, the conveyor chain maintenance tool further includes an elastic element, which is elastically connected between the first clamping arm and the second clamping arm, and the elastic element is used to keep the first clamping portion of the first clamping arm and the second clamping portion of the second clamping arm in an open state.

[0009] Optionally, the two ends of the elastic element are respectively connected to the end of the first clamping arm away from the first clamping part and the second clamping arm.

[0010] Optionally, the elastic element is used to make the opening distance between the first clamping part and the second clamping part greater than the distance between the outer sides of the two sprockets at both ends of two adjacent links of the conveyor chain.

[0011] Optionally, the conveyor chain maintenance tool further includes a connecting pin, and a through groove is provided at one end of the second clamping arm away from the second clamping part. The opening of the through groove is disposed away from the second clamping part. The first clamping arm passes through the through groove and is rotatably connected to the opposite two side walls of the through groove through the connecting pin.

[0012] Optionally, the force-applying rod extends parallel to the direction of the portion of the first clamping arm excluding the first clamping part, one end of the force-applying rod is connected to the first clamping arm, and the end of the force-applying rod away from the first clamping arm forms a handle.

[0013] Optionally, one end of the first clamping arm is bent toward the side closer to the second clamping portion to form the first clamping portion, and one end of the second clamping arm is bent toward the side closer to the first clamping portion to form the second clamping portion.

[0014] Optionally, the first clamping part and the second clamping part are respectively provided with a first arc-shaped clamping surface and a second arc-shaped clamping surface on the sides facing each other, and the first arc-shaped clamping surface and the second arc-shaped clamping surface are both matched with the shape of the sprocket.

[0015] The conveyor chain maintenance tool of this utility model has at least the following advantages compared with related technologies:

[0016] In use, the operator holds the lever and places the first clamping part of the first clamping arm and the second clamping part of the second clamping arm onto the sprockets or chain plates to be replaced at both ends. Since the lever is connected to the end of the first clamping arm away from the first clamping part, the first and second clamping arms are rotatably connected. Lifting the lever upwards causes the first clamping part of the first clamping arm and the second clamping part of the second clamping arm to come closer together, thus clamping the two sprockets and bringing them closer together. This loosens the connection between the sprocket or chain plate to be replaced, making it easy to remove the pin connecting the sprocket and chain plate. The chain plate or sprocket to be replaced can then be removed, and a new chain plate or sprocket can be reinstalled and locked with the pin. This completes the maintenance of the conveyor chain. The whole process is simple to operate, short in time, and highly efficient. Moreover, only one hand is needed to operate the lever, freeing up the operator's other hand. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the conveyor chain maintenance tool according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the conveyor chain repair tool clamping the conveyor chain according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. First clamping arm; 11. First clamping part; 111. First arc-shaped clamping surface; 2. Second clamping arm; 21. Second clamping part; 211. Second arc-shaped clamping surface; 22. Through groove; 3. Force rod; 31. Handle; 4. Stepping structure; 5. Elastic element; 6. Connecting pin; 7. Conveyor chain; 71. Chain plate; 72. Sprocket; 73. Pin shaft. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fitting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In addition, it should be noted that in the description of this utility model, the terms and nouns in each embodiment, such as "upper," "lower," "front," and "rear," which indicate the location, are only used to simplify the description of the positional relationship based on the accompanying drawings. They do not mean that the components and devices referred to must be operated in accordance with the specific location and limited operation, method, and structure in the specification. Such directional terms do not constitute a limitation on this utility model.

[0025] In related technologies, the conveyor chain 7 includes multiple chain links arranged sequentially, as shown in the reference. Figure 3As shown, each link includes two chain plates 71, a sprocket 72, and a pin 73. The two chain plates 71 are arranged opposite each other, and the sprocket 72 is located between one end of the two chain plates 71. The pin 73 passes through the chain plates 71 and the sprocket 72 in sequence, thus completing the assembly of one link. Multiple links are assembled in this way, and then the links are assembled together to form the conveyor chain 7. The mold containing molten aluminum is placed on the conveyor chain 7 and transported by the conveyor chain 7. During long-term use, the conveyor chain 7 wears down due to repeated contact with the mold. To avoid the increased cost and time-consuming problem of replacing the entire conveyor chain 7, usually only the chain plates 71 or sprockets 72 with severe wear are replaced.

[0026] like Figures 1-3 As shown, a conveyor chain repair tool according to an embodiment of the present invention includes a first clamping arm 1, a second clamping arm 2, and a force-applying rod 3. The first clamping arm 1 and the second clamping arm 2 are arranged crosswise and rotatably connected at the crosswise position. One end of the first clamping arm 1 and the second clamping arm 2 are respectively provided with a first clamping part 11 and a second clamping part 21. The first clamping part 11 and the second clamping part 21 are used to jointly clamp two sprockets 72 of the conveyor chain 7. The force-applying rod 3 is connected to the end of the first clamping arm 1 away from the first clamping part 11.

[0027] Specifically, the first clamping arm 1 and the second clamping arm 2 are arranged crosswise and can be rotated at the crosswise position by a general rotating connection method, thereby realizing relative rotation between the two; the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 are respectively used to overlap the outer side of the sprockets 72 at both ends of the worn chain link of the conveyor chain 7 (i.e. the side of the two sprockets 72 that are opposite to each other) and to clamp the two sprockets 72.

[0028] In this embodiment, during use, the operator holds the force-applying lever 3 and places the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 onto the sprockets 72 or chain plates 71 to be replaced. Since the force-applying lever 3 is connected to the end of the first clamping arm 1 away from the first clamping part 11, the first clamping arm 1 and the second clamping arm 2 are rotatably connected. When the force-applying lever 3 is lifted upwards, the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 can be brought closer together. By clamping the two sprockets 72 and bringing them close together, the connection between the sprocket 72 to be replaced or the chain plate 71 can be loosened. This allows the pin 73 connecting the sprocket 72 and the chain plate 71 to be easily removed, so that the chain plate 71 or sprocket 72 to be replaced can be removed. After that, the new chain plate 71 or sprocket 72 can be reinstalled and locked with the pin 73, thus completing the maintenance of the conveyor chain 7. The whole process is simple to operate, short in time, and highly efficient. Moreover, only one hand is needed to operate the force lever 3, which can free up the operator's other hand.

[0029] like Figure 2 As shown, optionally, the conveyor chain maintenance tool also includes a stepping structure 4, which is disposed on the second clamping arm 2 and located at the intersection of the second clamping arm 2 and the first clamping arm 1 and between the second clamping part 21.

[0030] Here, the foot pedal structure 4 can be fixedly connected to the second clamping arm 2, and the cross-sectional dimension of the foot pedal structure 4 can be set to be larger than that of the second clamping arm 2, for example, it can be a pedal to facilitate the operator's foot pedaling.

[0031] In use, the operator holds the force-applying lever 3 and attaches the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 to the sprocket 72 to be replaced or the sprockets 72 at both ends of the chain plate 71, for example... Figure 3 As shown, three sprockets are arranged between the first clamping part 11 and the second clamping part 21. The middle sprocket is the sprocket 72 to be replaced. The first clamping part 11 and the second clamping part 21 are respectively attached to the sprockets 72 at both ends to clamp the sprockets 72 at both ends. Then, the operator can step on the foot pedal structure 4 to apply pressure to the second clamping arm 2, so that the second clamping part 21 of the second clamping arm 2 moves toward the first clamping part 11 of the first clamping arm 1. At the same time, the force bar 3 is lifted upward to drive the first clamping part 11 of the first clamping arm 1 to move toward the second clamping part 21 of the second clamping arm 2. This achieves the first clamping part 11 and the second clamping part 21 to come closer to each other, thereby clamping the two sprockets 72 and bringing the two sprockets 72 closer to each other.

[0032] Optionally, the stepping structure 4 is disposed near the second clamping part 21 and located on the side of the second clamping arm 2 away from the first clamping part 11. That is, the stepping structure 4 is far from the rotational connection point of the first clamping arm 1 and the second clamping arm 2, and is disposed on the side of the second clamping arm 2 near the force application rod 3. This facilitates stepping on the stepping structure 4 and reduces the stepping force required for the clamping operation of the first clamping arm 1 and the second clamping arm 2.

[0033] like Figure 2 As shown, optionally, the conveyor chain maintenance tool further includes an elastic element 5, which is connected between the first clamping arm 1 and the second clamping arm 2, and the elastic element 5 is used to keep the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 in an open state.

[0034] Specifically, the elastic element 5 can be a spring, and the two ends of the elastic element 5 are fixedly connected to the first clamping arm 1 and the second clamping arm 2, respectively.

[0035] When the elastic element 5 is in a free state, the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 remain open, making it easy to connect the first clamping part 11 and the second clamping part 21 to the corresponding sprocket 72 of the conveyor chain 7. At the same time, since the force-applying rod 3 is fixedly connected to the first clamping arm 1, the force-applying rod 3 is also at a certain angle relative to the conveyor chain 7 when the first clamping arm 1 and the second clamping arm 2 are open, making it easy for the operator to hold the force-applying rod 3 to apply force and to facilitate the foot to step on the structure 4. When the force-applying rod 3 is raised so that the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 come closer to each other, the elastic element 5 is stretched and accumulates elastic potential energy. After that, the force-applying rod 3 is released, and the first clamping arm 1 and the second clamping arm 2 can be reset under the restoring force of the elastic element 5.

[0036] like Figure 2 As shown, optionally, the two ends of the elastic member 5 are respectively connected to the end of the first clamping arm 1 away from the first clamping part 11 and the second clamping arm 2.

[0037] In this embodiment, the elastic element 5 is disposed between the end of the first clamping arm 1 away from the first clamping part 11 and the second clamping arm 2, avoiding the clamping area enclosed by the first clamping arm 1 and the second clamping arm 2. Therefore, interference between the elastic element 5 and the conveyor chain 7 in the clamping area can be avoided, and interference between the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 and the elastic element 5 can be avoided when they come close to each other, ensuring the smoothness of the clamping action.

[0038] Of course, in some other embodiments, one end of the elastic member 5 may be connected to the first clamping arm 1 between its rotational connection point and the first clamping portion 11, and the other end of the elastic member 5 may be connected to the second clamping arm 2. Alternatively, the elastic member 5 may be a torsion spring, disposed at the intersection of the first clamping arm 1 and the second clamping arm 2.

[0039] Optionally, the elastic element 5 is configured to ensure that the opening distance between the first clamping part 11 and the second clamping part 21 is greater than the distance between the outer sides of the two sprockets 72 at both ends of two adjacent links of the conveyor chain 7. This allows the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 to directly cross over the relevant links and overlap the outer sides of the two sprockets 72 to be clamped when the maintenance tool is in use, eliminating the need for the operator to manually overlap the first clamping part 11 of the first clamping arm 1 and the second clamping part 21 of the second clamping arm 2 onto the corresponding sprockets 72, making clamping more convenient.

[0040] like Figure 2 As shown, optionally, the end of the second clamping arm 2 away from the second clamping part 21 is provided with a through groove 22. The opening of the through groove 22 is disposed away from the second clamping part 21. The first clamping arm 1 passes through the through groove 22 and is rotatably connected to the opposite two side walls of the through groove 22 by a connecting pin 6.

[0041] Specifically, the through groove 22 can be a U-shaped groove with two groove walls and a groove bottom. The end of the first clamping arm 1 away from the first clamping part 11 passes through the through groove 22 and is rotatably connected to the opposite two groove walls of the through groove 22. The groove bottom of the through groove 22 can have a rotation limiting function. For example, when the conveyor chain maintenance tool is not in use, the first clamping arm 1 can rotate to abut against the groove bottom of the through groove 22, thereby realizing the rotation limiting of the first clamping arm 1, so that the first clamping arm 1 and the second clamping arm 2 maintain a certain opening angle, which makes it convenient to directly clamp the two sprockets 72 to be clamped by the two clamping arms during use, and to make the force application rod 3 and the conveyor chain 7 form a certain angle, which facilitates the application of force to the force application rod 3 and the operation of stepping on the stepping structure 4.

[0042] Optionally, the force-applying rod 3 extends parallel to the extension direction of the portion of the first clamping arm 1 excluding the first clamping part 11, one end of the force-applying rod 3 is connected to the first clamping arm 1, and the end of the force-applying rod 3 away from the first clamping arm 1 forms a handle 31.

[0043] Here, by making the force-applying rod 3 parallel to the extension direction of the portion of the first clamping arm 1 excluding the first clamping part 11, and by connecting one end of the force-applying rod 3 to the first clamping arm 1, the lever arm can be extended, making it easier to lift the force-applying rod 3 to drive the first clamping arm 1. The longer the length of the force-applying rod 3, i.e., the longer the lever arm, the smaller the lifting force required to be applied to the force-applying rod 3; the shorter the lever arm, the greater the lifting force required to be applied to the force-applying rod 3.

[0044] The handle 31 can be cylindrical to better match the gripping posture of the human hand.

[0045] like Figures 1-2 As shown, optionally, one end of the first clamping arm 1 is bent toward the side near the second clamping part 21 to form the first clamping part 11, and one end of the second clamping arm 2 is bent toward the side near the first clamping part 11 to form the second clamping part 21. This allows the first clamping part 11 and the second clamping part 21 to engage with the corresponding sprockets 72 of the conveyor chain 7, ensuring clamping stability; moreover, the first clamping part 11 is integrally formed with the first clamping arm 1, and the second clamping part 21 is integrally formed with the second clamping arm 2, simplifying the structural design and ensuring structural strength.

[0046] like Figure 2 As shown, optionally, the first clamping part 11 and the second clamping part 21 are respectively provided with a first arc-shaped clamping surface 111 and a second arc-shaped clamping surface 211 on the side facing each other, and the first arc-shaped clamping surface 111 and the second arc-shaped clamping surface 211 are both matched with the shape of the sprocket 72.

[0047] Here, by providing a first arc-shaped clamping surface 111 that matches the sprocket 72 on the side of the first clamping part 11 facing the second clamping part 21, and providing a second arc-shaped clamping surface 211 that matches the sprocket 72 on the side of the second clamping part 21 facing the first clamping part 11, the first arc-shaped clamping surface 111 and the second arc-shaped clamping surface 211 respectively fit against the corresponding sprocket 72, avoiding contact slippage between the first clamping part 11 and the second clamping part 21 and the sprocket 72 during the process of them coming closer together, thus ensuring that the sprocket 72 can be stably clamped.

[0048] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A conveyor chain maintenance tool, characterized in that, It includes a first clamping arm (1), a second clamping arm (2) and a force bar (3). The first clamping arm (1) and the second clamping arm (2) are arranged crosswise and rotatably connected at the crosswise position. One end of the first clamping arm (1) and the second clamping arm (2) are respectively provided with a first clamping part (11) and a second clamping part (21). The first clamping part (11) and the second clamping part (21) are used to jointly clamp the two sprockets (72) of the conveying chain (7). The force bar (3) is connected to the end of the first clamping arm (1) away from the first clamping part (11).

2. The conveyor chain maintenance tool according to claim 1, characterized in that, It also includes a stepping structure (4), which is disposed on the second clamping arm (2) and located at the intersection of the second clamping arm (2) and the first clamping arm (1) and the second clamping part (21).

3. The conveyor chain maintenance tool according to claim 2, characterized in that, The stepping structure (4) is located near the second clamping part (21) and on the side of the second clamping arm (2) away from the first clamping part (11).

4. The conveyor chain maintenance tool according to claim 1, characterized in that, It also includes an elastic element (5), which is connected between the first clamping arm (1) and the second clamping arm (2), and the elastic element (5) is used to keep the first clamping part (11) of the first clamping arm (1) and the second clamping part (21) of the second clamping arm (2) in an open state.

5. The conveyor chain maintenance tool according to claim 4, characterized in that, The two ends of the elastic element (5) are respectively connected to the end of the first clamping arm (1) away from the first clamping part (11) and the second clamping arm (2).

6. The conveyor chain maintenance tool according to claim 4, characterized in that, The elastic element (5) is used to make the opening distance between the first clamping part (11) and the second clamping part (21) greater than the distance between the outer sides of the two sprockets (72) at both ends of two adjacent links of the conveyor chain (7).

7. The conveyor chain maintenance tool according to claim 1, characterized in that, It also includes a connecting pin (6), and the second clamping arm (2) is provided with a through groove (22) at one end away from the second clamping part (21). The opening of the through groove (22) is set away from the second clamping part (21). The first clamping arm (1) passes through the through groove and is rotatably connected to the opposite two side walls of the through groove (22) through the connecting pin (6).

8. The conveyor chain maintenance tool according to claim 1, characterized in that, The force-applying rod (3) extends parallel to the extension direction of the first clamping arm (1) excluding the first clamping part (11). One end of the force-applying rod (3) is connected to the first clamping arm (1), and the end of the force-applying rod (3) away from the first clamping arm (1) forms a handle (31).

9. The conveyor chain maintenance tool according to any one of claims 1-8, characterized in that, One end of the first clamping arm (1) is bent toward the side close to the second clamping part (21) to form the first clamping part (11), and one end of the second clamping arm (2) is bent toward the side close to the first clamping part (11) to form the second clamping part (21).

10. The conveyor chain maintenance tool according to claim 9, characterized in that, The first clamping part (11) and the second clamping part (21) are respectively provided with a first arc-shaped clamping surface (111) and a second arc-shaped clamping surface (211) on the side facing each other. The first arc-shaped clamping surface (111) and the second arc-shaped clamping surface (211) are both matched with the shape of the sprocket (72).

Images