Mining high-strength round-link chain

Abstract

The utility model relates to the technical field of coal mining, and discloses a mining high-strength round-link chain which comprises an upper link chain, a lower link chain and two connecting blocks, the bottom of the upper link chain is fixedly connected with two upper clamping plates, the top of the lower link chain is fixedly connected with two lower clamping plates, the sides, close to each other, of the two connecting blocks are respectively provided with a clamping groove, and the two connecting blocks are fixedly connected with the clamping grooves. Fastening screw holes are formed in the surfaces of the two connecting blocks correspondingly, fastening bolts are inserted into the fastening screw holes, and nuts are arranged at one ends of the fastening bolts. According to the mining high-strength round-link chain, the round-link chain is prevented from loosening in the using process, the clamping grooves are matched with the lower link chain and the upper clamping plate correspondingly, the clamping grooves are matched with the lower link chain and the lower clamping plate correspondingly, the connecting stability and reliability among the upper link chain, the lower link chain and the connecting block are guaranteed, when the upper link chain or the lower link chain is damaged, the fastening bolts and the nuts are screwed off, and the round-link chain is prevented from loosening. And the two connecting blocks are separately replaced with a new upper loop chain or a new lower loop chain, so that the loop chains are convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a high-strength round-link chain for mining. Background Art

[0002] A coal mine is an area where humans exploit coal resources in coal-rich mining areas. It is generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. When the coal seam is very close to the surface, people generally choose to directly strip off the surface soil layer to mine coal. This is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. The scope of coal mines includes a large area above and below the ground and related facilities. Coal mines are reasonable spaces excavated by humans when digging geological strata rich in coal, usually including tunnels, shafts, mining faces, etc.

[0003] The existing round link chain for mining is not easy to disassemble, so that a round link unit on the round link chain cannot be replaced or is troublesome to replace after being damaged. Therefore, a high-strength round link chain for mining is urgently needed. Utility Model Content

[0004] The utility model aims to provide a high-strength round-link chain for mining, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a high-strength round-link chain for mining, comprising an upper ring chain, a lower ring chain, and two connecting blocks, wherein the bottom of the upper ring chain is fixedly connected to two upper clamping plates, and the top of the lower ring chain is fixedly connected to two lower clamping plates, and the two connecting blocks are respectively provided with clamping grooves on one side close to each other, and the surfaces of the two connecting blocks are respectively provided with fastening screw holes, and fastening bolts are inserted into the fastening screw holes, and a nut is provided at one end of the fastening bolt.

[0006] Preferably, the upper ring chain and the two upper clamping plates are integrally formed, and the lower ring chain and the two lower clamping plates are integrally formed.

[0007] A card slot is provided on the side where the two connecting blocks are close to each other, which is used to cooperate with the upper card plate and the lower card plate for connection. A fastening screw hole is also provided on the surface of the connecting block, and fastening bolts are inserted in the screw hole to further fix the connecting block and the upper ring chain and the lower ring chain. The upper ring chain is integrally formed with the two upper card plates, and the lower ring chain is integrally formed with the two lower card plates, which can improve the overall strength and stability of the round ring chain.

[0008] Preferably, upper sawtooth blocks are respectively provided at both ends of each of the upper clamping plates, and lower sawtooth blocks are respectively provided on each of the lower clamping plates.

[0009] Preferably, the card slots are respectively matched with the lower ring chain and the upper card plate, and the card slots are respectively matched with the lower ring chain and the lower card plate.

[0010] An upper serrated block is provided at both ends of each upper pallet, and a lower serrated block is provided at each lower pallet. The design of the serrated block can increase the friction between the upper and lower pallets and the connecting block to prevent the circular chain from loosening during use. The card slots are respectively matched with the lower ring chain and the upper pallet, and the card slots are respectively matched with the lower ring chain and the lower pallet to ensure the connection stability and reliability between the upper ring chain, the lower ring chain and the connecting block.

[0011] Preferably, upper movable holes are respectively opened on the right sides of the upper ring chain and the lower ring chain, and limiting rods are respectively inserted in the upper movable holes, and pull rods are fixedly connected to the right sides of the limiting rods, and limiting blocks are fixedly connected to the surfaces of the limiting rods, and springs are respectively sleeved on the surfaces of the limiting rods, and limiting grooves are respectively opened on the left inner walls of the upper ring chain and the lower ring chain, and the left sides of the limiting rods are respectively inserted into the limiting grooves.

[0012] Preferably, the left sides of the springs are fixedly connected to the limit blocks, and the right sides of the springs are in contact with the inner walls of the upper ring chains.

[0013] By pulling the pull rod, the limit rod can be moved to the right to squeeze the spring, thereby unlocking the chain. When the pull rod is released, two adjacent chains can be limited to reduce the wear caused by their shaking.

[0014] Preferably, the arc surfaces of the upper ring chain and the lower ring chain are respectively covered with a wear-resistant layer.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] The two ends of the chain are connected with each other with a bolt, and the bolt has a hole at the bottom of the hole to connect the two ends of the chain, so that the two ends of the chain can be connected with each other, and the two ends of the chain can be connected with each other to form a new chain.

[0017] Second, according to the utility model, when two adjacent ring chains are connected, by pulling the pull rod, the limiting rod can be moved to the right to squeeze the spring, thereby unlocking the ring chain. When the pull rod is loosened, the two adjacent ring chains can be limited to reduce the wear caused by shaking, and the wear-resistant layer provided enhances the wear resistance between the ring chains. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the right-side cutaway three-dimensional structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model.

[0022] Among them: 1. upper chain; 2. lower chain; 3. connecting block; 4. upper clamping plate; 5. lower clamping plate; 6. fastening bolts; 7. nuts; 8. limit rod; 9. limit block; 10. spring; 11. wear-resistant layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides the following technical solutions:

[0025] Embodiment 1

[0026] See also Figure 1 , Figure 2 , Figure 3 A high-strength round-link chain for mining comprises an upper ring chain 1, a lower ring chain 2, and two connecting blocks 3. The bottom of the upper ring chain 1 is fixedly connected to two upper clamping plates 4, and the top of the lower ring chain 2 is fixedly connected to two lower clamping plates 5. The two connecting blocks 3 are respectively provided with card grooves on the sides close to each other, and the surfaces of the two connecting blocks 3 are respectively provided with fastening screw holes, and fastening bolts 6 are inserted into the fastening screw holes, and a nut 7 is provided at one end of the fastening bolt 6.

[0027] The upper ring chain 1 and the two upper clamping plates 4 are integrally formed, and the lower ring chain 2 and the two lower clamping plates 5 are integrally formed.

[0028] Upper sawtooth blocks are respectively provided at both ends of each upper clamping plate 4 , and lower sawtooth blocks are respectively provided on each lower clamping plate 5 .

[0029] The clamping slots are respectively matched with the lower ring chain 2 and the upper clamping plate 4, and the clamping slots are respectively matched with the lower ring chain 2 and the lower clamping plate 5.

[0030] Through the above technical scheme, the two connecting blocks 3 are respectively provided with a card groove on one side close to each other, which is used to cooperate with the upper card plate 4 and the lower card plate 5 for connection. The surface of the connecting block 3 is also provided with a fastening screw hole, and a fastening bolt 6 is inserted in the screw hole to further fix the connecting block 3 and the upper ring chain 1 and the lower ring chain 2. The upper ring chain 1 and the two upper card plates 4 are integrally formed, and the lower ring chain 2 and the two lower card plates 5 are integrally formed, which can improve the overall strength and stability of the round chain. An upper serrated block is respectively provided at both ends of each upper card plate 4, and each lower card plate 5 is divided on A lower serrated block is provided, and the design of the serrated block can increase the friction between the upper clamping plate 4 and the lower clamping plate 5 and the connecting block 3 to prevent the circular chain from loosening during use. The clamping grooves are respectively adapted to the lower ring chain 2 and the upper clamping plate 4, and the clamping grooves are respectively adapted to the lower ring chain 2 and the lower clamping plate 5 to ensure the connection stability and reliability between the upper ring chain 1, the lower ring chain 2 and the connecting block 3. When the upper ring chain 1 or the lower ring chain 2 is damaged, the fastening bolts 6 and the nuts 7 are unscrewed, so that the two connecting blocks 3 can be separately replaced with a new upper ring chain 1 or lower ring chain 2, which facilitates the replacement of the ring chain.

[0031] Embodiment 2

[0032] See also Figure 4 On the basis of Example 1, it is further obtained that: upper movable holes are respectively opened on the right sides of the upper ring chain 1 and the lower ring chain 2, and limit rods 8 are respectively inserted in the upper movable holes, and pull rods are respectively fixedly connected to the right sides of the limit rods 8, and limit blocks 9 are respectively fixedly connected to the surfaces of the limit rods 8, and springs 10 are respectively sleeved on the surfaces of the limit rods 8, and limit grooves are respectively opened on the left inner walls of the upper ring chain 1 and the lower ring chain 2, and the left sides of the limit rods 8 are respectively inserted into the limit grooves.

[0033] The left sides of the spring 10 are fixedly connected to the limit blocks 9 , and the right sides of the spring 10 are in contact with the inner wall of the upper ring chain 1 .

[0034] The arc surfaces of the upper ring chain 1 and the lower ring chain 2 are respectively covered with a wear-resistant layer 11 .

[0035] Through the above technical scheme, upper movable holes are respectively opened on the right sides of the upper ring chain 1 and the lower ring chain 2, and limiting rods 8 are respectively inserted in the upper movable holes, and pull rods are respectively fixedly connected to the right sides of the limiting rods 8. The surfaces of the limiting rods 8 are respectively fixedly connected to limiting blocks 9, and the surfaces of the limiting rods 8 are respectively sleeved with springs 10. The left inner walls of the upper ring chain 1 and the lower ring chain 2 are respectively opened with limiting grooves, and the left sides of the limiting rods 8 are respectively inserted into the limiting grooves. When two adjacent ring chains are connected, by pulling the pull rod, the limiting rod 8 can be moved to the right to squeeze the spring 10, thereby unlocking the ring chain. When the pull rod is released, the two adjacent ring chains can be limited to reduce the wear caused by the shaking, and the wear-resistant layer 11 provided enhances the wear resistance between the ring chains.

[0036] In actual operation, when the device is in use, a card slot is provided on one side of the two connecting blocks 3 close to each other, which is used to cooperate and connect with the upper card plate 4 and the lower card plate 5. A fastening screw hole is also provided on the surface of the connecting block 3, and a fastening bolt 6 is inserted in the screw hole to further fix the connecting block 3 and the upper ring chain 1 and the lower ring chain 2. The upper ring chain 1 and the two upper card plates 4 are integrally formed, and the lower ring chain 2 and the two lower card plates 5 are integrally formed, which can improve the overall strength and stability of the circular chain. An upper serrated block is provided at both ends of each upper card plate 4, and a lower serrated block is provided on each lower card plate 5. The design of the serrated block can increase the friction between the upper card plate 4 and the lower card plate 5 and the connecting block 3, preventing the circular chain from being used When the upper and lower chains are connected, the locking nut 6 and the nut 7 are unscrewed to separate the two connecting blocks 3 and replace the new upper and lower chains 1 or 2, which facilitates the replacement of the chains. When two adjacent chains are connected, the limit rod 8 can be moved to the right to squeeze the spring 10 by pulling the pull rod, thereby unlocking the chain. When the pull rod is released, the two adjacent chains can be limited to reduce the wear caused by shaking. The wear-resistant layer 11 provided enhances the wear resistance between the chains.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength round-link chain for mining, comprising an upper ring chain (1), a lower ring chain (2), and two connecting blocks (3), characterized in that: The bottom of the upper ring chain (1) is fixedly connected to two upper clamping plates (4), the top of the lower ring chain (2) is fixedly connected to two lower clamping plates (5), the two connecting blocks (3) are respectively provided with clamping grooves on their mutually adjacent sides, the surfaces of the two connecting blocks (3) are respectively provided with fastening screw holes, fastening bolts (6) are inserted into the fastening screw holes, and a nut (7) is provided at one end of the fastening bolt (6).

2. A high-strength round link chain for mining according to claim 1, characterized in that: The upper ring chain (1) and the two upper clamping plates (4) are integrally formed, and the lower ring chain (2) and the two lower clamping plates (5) are integrally formed.

3. A high-strength round-link chain for mining according to claim 1, characterized in that: An upper sawtooth block is respectively provided at both ends of each upper clamping plate (4), and a lower sawtooth block is respectively provided on each lower clamping plate (5).

4. A high-strength round link chain for mining according to claim 1, characterized in that: The clamping slots are respectively matched with the lower ring chain (2) and the upper clamping plate (4), and the clamping slots are respectively matched with the lower ring chain (2) and the lower clamping plate (5).

5. The high-strength round link chain for mining according to claim 1, characterized in that: The upper ring chain (1) and the lower ring chain (2) are respectively provided with upper movable holes on their right sides, and limit rods (8) are respectively inserted into the upper movable holes. The right sides of the limit rods (8) are respectively fixedly connected with pull rods, and the surfaces of the limit rods (8) are respectively fixedly connected with limit blocks (9). The surfaces of the limit rods (8) are respectively sleeved with springs (10). The left inner walls of the upper ring chain (1) and the lower ring chain (2) are respectively provided with limit grooves, and the left sides of the limit rods (8) are respectively inserted into the limit grooves.

6. A high-strength round-link chain for mining according to claim 5, characterized in that: The left side of the spring (10) is fixedly connected to the limit block (9), and the right side of the spring (10) is in contact with the inner wall of the upper ring chain (1).

7. A high-strength round link chain for mining according to claim 1, characterized in that: The arc surfaces of the upper ring chain (1) and the lower ring chain (2) are respectively covered with a wear-resistant layer (11).

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