Tensioning tool for maintenance of conveyor belt

Abstract

The utility model relates to the technical field of conveyor belt maintenance tools, and particularly discloses a tensioning tool for conveyor belt maintenance, which comprises a positioning block, a moving block and a screw rod, a through hole is formed in the moving block, and the lead screw penetrates into the through hole to be connected with the moving block in a sliding mode. The head of one end of the lead screw is fixedly connected with the positioning block, and the other end of the lead screw is in threaded connection with an adjusting nut used for pushing the moving block to move in the axial direction of the lead screw. A first open groove and a second open groove which correspond to each other in position are formed in the same side of the positioning block and the moving block respectively, the positioning block is in threaded connection with a first puller bolt vertically penetrating into the first open groove, and the moving block is in threaded connection with a second puller bolt vertically penetrating into the second open groove. The connecting end parts at the two ends of the conveying belt can be pulled to be close, so that a pin shaft can be conveniently inserted for connection.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belt repair tooling, in particular to a tensioning tooling used for conveyor belt repair. Background Art

[0002] At present, the transportation of rubber materials, tire blanks and finished tires in tire production workshops mainly adopts chain conveyor belts and chain plate conveyor belts. When replacing the chain or chain plate of such conveyor belts, it is necessary to wrap the conveyor belt around the conveyor rollers at both ends, and then clamp the two ends of the conveyor belt opening with pliers and tighten them manually, so that the two ends of the conveyor belt gradually approach each other and align the shaft holes, and then insert the pin shaft to connect the conveyor belt in a ring shape;

[0003] Since the conveyor belt is in a taut state after being connected, it requires the coordinated efforts of multiple people when manually clamping and tightening the joints on both sides of the conveyor belt with pliers, and the operation is labor-intensive. In addition, it is difficult to ensure that the hands do not shake when manually clamping the conveyor belt and then tightening it, which makes it difficult to align the shaft holes at both ends of the conveyor belt connection, and the operation is quite time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to address the defects of the prior art and provide a tensioning tool for conveyor belt maintenance, which can pull the connecting ends of the two ends of the conveyor belt closer together, thereby facilitating the insertion of the pin shaft connection, and a single person can easily complete the disassembly and assembly of the conveyor belt by using the tool.

[0005] The technical solution of the utility model is: a tensioning tool for conveyor belt maintenance, comprising a positioning block, a moving block and a screw rod;

[0006] The moving block is provided with a through hole, and the screw rod penetrates into the through hole and is slidably connected with the moving block;

[0007] One end of the screw rod is fixedly connected to the positioning block, and the other end of the screw rod is threadedly connected to an adjusting nut for pushing the moving block to move along the axial direction of the screw rod;

[0008] The positioning block and the moving block are respectively provided with a first opening groove and a second opening groove corresponding to the positions on the same side; the positioning block is threadedly connected with a first tightening bolt vertically penetrating into the first opening groove; the moving block is threadedly connected with a second tightening bolt vertically penetrating into the second opening groove.

[0009] Preferably, the tops of the first tightening bolt and the second tightening bolt are both provided with crescent-shaped knob portions.

[0010] Preferably, both the first tightening bolt and the second tightening bolt are two and are arranged along the length direction of the screw rod.

[0011] Preferably, the tensioning tools are in two groups that are symmetrically distributed.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model fixes the two ends of the conveyor belt in the opening grooves of the positioning block and the moving block respectively, and then pushes the moving block to move closer to the positioning block by rotating the adjusting nut, thereby tightening the conveyor belt and aligning the shaft holes at the connection points at the two ends of the conveyor belt, thereby facilitating the insertion of the pin shaft for connection. In addition, a single person can easily complete the disassembly and assembly of the conveyor belt by using the tooling.

[0014] Similarly, when disassembling the conveyor belt, the two chain petals on the conveyor belt are fixed with the utility model, and then the position of the lower moving block is adjusted to make the moving block slightly closer to the positioning block, so as to prevent the pin shaft from being too tight by the tension of the shaft hole, thereby facilitating the pin shaft to be pulled out from the shaft hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a reference diagram for the use of the utility model in Example 1;

[0017] Figure 3 It is a reference diagram for the use of the utility model in Example 2;

[0018] In the figure: 1, positioning block, 2, moving block, 3, adjusting nut, 4, screw rod, 5, crescent-shaped knob part, 6, first tightening bolt, 7, second tightening bolt, 8, first opening groove, 9, second opening groove, 10, chain, 11, short pin shaft, 12, chain plate, 13, long pin shaft. DETAILED DESCRIPTION

[0019] The utility model is further described below with reference to the accompanying drawings and embodiments. Example 1

[0020] like Figure 1 , a tensioning tool for conveyor belt maintenance, comprising a positioning block 1, a moving block 2 and a screw rod 4;

[0021] The moving block 2 is provided with a through hole, and the screw rod 4 penetrates into the through hole and is slidably connected with the moving block 2 .

[0022] One end of the screw rod 4 is fixedly connected to the positioning block 1 , and the other end of the screw rod 4 is threadedly connected to an adjusting nut 3 for pushing the moving block 2 to move axially along the screw rod 4 .

[0023] A first opening slot 8 and a second opening slot 9 corresponding to the positions are respectively formed on the same side of the positioning block 1 and the moving block 2 .

[0024] A first tightening bolt 6 vertically penetrates into a first opening groove 8 and is threadedly connected to the positioning block 1 , and a second tightening bolt 7 vertically penetrates into a second opening groove 9 and is threadedly connected to the moving block 2 .

[0025] like Figure 2 When in use, after the chain 10 is looped around the sprockets at both ends, one end of the chain 10 is placed in the first opening groove 8 and is tightened and fixed by the first tightening bolt 6, and then the other end of the chain 10 is placed in the second opening groove 9 and is tightened and fixed by the second tightening bolt 7;

[0026] Next, rotate the adjusting nut 3 to push the moving block 2 toward the positioning block 1 through the adjusting nut 3, thereby tightening the chain 10 and making the chain petals at both ends of the chain 10 gradually approach each other. When the pin holes on the two chain petals are aligned, the short pin shaft 11 can be easily inserted. Example 2

[0027] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0028] like Figure 3 When the utility model is used to tighten the chain plate 12, the tightening tooling is divided into two groups that are symmetrically distributed;

[0029] Through two sets of tensioning fixtures, they are clamped and fixed on both sides of the chain plate 12 respectively, and the adjusting nuts 3 of the two tensioning fixtures are adjusted to work together to gradually pull the two chain plates 12 closer;

[0030] By tightening the chain plates 12 with a certain width on both sides at the same time to bring them closer together, it is easier to align the shaft holes coaxially, thereby facilitating the insertion of the long pin shaft 13. Example 3

[0031] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0032] The tops of the first tightening bolt 6 and the second tightening bolt 7 are both provided with a crescent-shaped knob portion 5. By adding the tooth-shaped knob portion 5, it is convenient for the operator to hold the portion with his hand and directly rotate the tightening bolt, which is more convenient to use.

[0033] The first tightening bolt 6 and the second tightening bolt 7 are both two bolts arranged along the length direction of the screw rod 4. By increasing the number of the tightening bolts, the firmness of tightening and fixing the end of the conveyor belt is improved.

[0034] The utility model has the characteristics of simple structure and convenient use. The two ends of the conveyor belt are respectively fixed in the open grooves of the positioning block 1 and the moving block 2, and then the moving block 2 is pushed to move closer to the positioning block 1 by rotating the adjusting nut 3, so that the conveyor belt is tightened, and the shaft holes at the connection points of the two ends of the conveyor belt are aligned, which is convenient for inserting the pin shaft for connection.

[0035] Similarly, when disassembling the conveyor belt, the two chain petals on the conveyor belt are fixed with the utility model, and then the position of the lower moving block 2 is adjusted to make the moving block 2 slightly closer to the positioning block 1, so as to prevent the pin shaft from being too tight by the tension of the shaft hole, thereby facilitating the pin shaft to be pulled out from the shaft hole.

[0036] The present invention is not limited to the above-mentioned implementation modes. Within the knowledge scope of those skilled in the art, various changes can be made without departing from the purpose of the present invention. The changed contents still belong to the protection scope of the present invention.

Claims

1. A tensioning tool for conveyor belt maintenance, characterized in that: Including positioning block, moving block and screw rod; The moving block is provided with a through hole, and the screw rod penetrates into the through hole and is slidably connected with the moving block; One end of the screw rod is fixedly connected to the positioning block, and the other end of the screw rod is threadedly connected to an adjusting nut for pushing the moving block to move along the axial direction of the screw rod; The positioning block and the moving block are respectively provided with a first opening groove and a second opening groove corresponding to the positions on the same side; the positioning block is threadedly connected with a first tightening bolt vertically penetrating into the first opening groove; the moving block is threadedly connected with a second tightening bolt vertically penetrating into the second opening groove.

2. A tensioning tool for conveyor belt maintenance according to claim 1, characterized in that: The tops of the first and second tightening bolts are both provided with crescent-shaped knobs.

3. The tensioning tool for conveyor belt maintenance according to claim 1, characterized in that: The first tightening bolt and the second tightening bolt are both two bolts arranged along the length direction of the screw rod.

4. The tensioning tool for conveyor belt maintenance according to claim 1, characterized in that: The tensioning tools are divided into two groups which are symmetrically distributed.

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