Positioning and clamping device for mining flat type chain connecting ring

Abstract

The utility model relates to the field of chain connecting rings, in particular to a mining flat type chain connecting ring positioning and clamping device which comprises a handheld rod and a chain connecting ring arranged at the top of the handheld rod, a sliding hole is formed in the center of the interior of the handheld rod, and strip-shaped holes are formed in the positions, located at the center of the sliding hole, of the two ends of the outer wall of the top of the handheld rod. The handheld rod is rotatably connected with a two-way screw at the center of the sliding hole, sliding blocks are in threaded connection with the outer walls of the two ends of the two-way screw, threaded holes are formed in the centers of the tops of the sliding blocks, threaded heads are in threaded connection with the interiors of the threaded holes of the sliding blocks, and contact heads are welded to the outer walls of the top ends of the threaded heads. The worm and the worm gear are meshed to drive the two-way screw to rotate, the contact heads on the sliding blocks are close to each other after the two-way screw rotates, then two chains are pulled in and pulled close to a certain distance, then chain connecting rings are installed, and positioning clamping installation, pulling-close installation and auxiliary installation are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chain connecting rings, in particular to a flat chain connecting ring positioning and clamping device for mining. Background Art

[0002] The main function of a chain link is to connect the two ends of a chain, forming a closed loop to drive a conveyor belt or other mechanical components. Chain links are particularly common in conveying systems in industries such as coal mines, power plants, and chemical plants. They must not only withstand tremendous tensile forces but also adapt to various harsh working environments, such as high humidity, dust, temperature fluctuations, and chemical corrosion.

[0003] When using a connecting ring to connect two chains, since one end of the chain is fixed, the chains are pulled closer to each other. However, the two chains cannot be directly and effectively brought closer due to the chain's own gravity, and the size of the connecting ring is small, so the two chains cannot be connected. Therefore, a positioning clamping device is required to pull the chains closer to facilitate the connecting ring to connect the two chains. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned problems and shortcomings and to propose a flat-type chain link positioning and clamping device for mining: the worm and the worm wheel engage to drive the bidirectional screw to rotate, and after the bidirectional screw rotates, the contact heads on the sliding block are brought closer to each other, and then the two chains are pulled towards each other. After they are pulled close to a certain distance, the chain link is installed, which is convenient for positioning and clamping installation, easy to pull close installation, and easy to assist installation, and solves the problem that the iron chain is not convenient to pull close when installing the chain link.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A flat chain link positioning and clamping device for mining includes a hand-held rod and a chain link placed at the top of the hand-held rod, a sliding hole is opened at the inner center of the hand-held rod, and strip holes are opened at both ends of the outer wall of the top of the hand-held rod at the center of the sliding hole, the hand-held rod is rotatably connected to a bidirectional screw at the center of the sliding hole, and the outer walls of both ends of the bidirectional screw are threadedly connected to sliding blocks, a threaded hole is opened at the top center of the sliding block, and a threaded head is threadedly connected to the threaded hole of the sliding block, and a contact head is welded to the outer wall of the top end of the threaded head.

[0007] Preferably, the outer wall of the sliding block is slidably connected to the sliding hole and the outer wall of the strip hole respectively, and the outer wall of the top of the handheld rod is located at the center of the bidirectional screw and has a rotating hole, and the inner wall of the sliding hole is rotatably connected to a worm at the rotating hole.

[0008] Preferably, a worm wheel is welded at the center of the outer wall of the bidirectional screw, and the worm wheel is meshed with the worm;

[0009] According to the above scheme: the worm and the worm wheel engage to drive the bidirectional screw to rotate. After the bidirectional screw rotates, the contact heads on the sliding block are brought closer to each other, and then the two chains are pulled towards each other. After they are pulled close to a certain distance, the chain link is installed, which is convenient for positioning and clamping installation, easy for pulling close installation, and easy for auxiliary installation.

[0010] Preferably, both ends of the worm are slidably connected to the inner wall of the sliding hole and the rotating hole, and both ends of the outer wall of the worm are provided with a driving groove, and a crank is inserted into the driving groove.

[0011] Preferably, both ends of the outer wall of one side of the hand-held rod are installed with equally spaced sockets, and the threaded head and the contact head are both plugged into the sockets.

[0012] Preferably, a hanging ring is welded at the center of the outer wall of one end of the hand-held rod, and a plug-in plate is welded at one end of the bottom outer wall of the hand-held rod.

[0013] The beneficial effects of the utility model are:

[0014] The worm and the worm wheel mesh with each other to drive the bidirectional screw to rotate. After the bidirectional screw rotates, the contact heads on the sliding block are brought closer to each other, and then the two chains are pulled towards each other. After they are pulled close to a certain distance, the chain link is installed, which is convenient for positioning, clamping installation, pulling-close installation, and auxiliary installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a flat-type chain link positioning and clamping device for mining proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a flat-type chain link positioning and clamping device for mining proposed by the present invention;

[0017] Figure 3 The utility model is a schematic diagram of the bottom structure of a flat-type chain link positioning and clamping device for mining.

[0018] In the figure: 1 handle, 2 sliding hole, 3 bar hole, 4 bidirectional screw, 5 sliding block, 6 threaded hole, 7 threaded head, 8 contact head, 9 socket, 10 rotating hole, 11 worm, 12 worm wheel, 13 driving slot, 14 crank, 15 socket plate, 16 hanging ring, 17 chain link. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0020] Reference Figure 1-3 A flat chain link positioning and clamping device for mining comprises a hand-held rod 1 and a chain link 17 placed at the top of the hand-held rod 1. A sliding hole 2 is provided at the inner center of the hand-held rod 1, and strip holes 3 are provided at both ends of the outer wall of the top of the hand-held rod 1 at the center of the sliding hole 2. The hand-held rod 1 is rotatably connected to a bidirectional screw 4 at the center of the sliding hole 2, and the outer walls of both ends of the bidirectional screw 4 are threadedly connected to sliding blocks 5. A threaded hole 6 is provided at the top center of the sliding block 5, and a threaded head 7 is threaded in the threaded hole of the sliding block 5. A contact head 8 is welded to the outer wall of the top of the threaded head 7. The crank 14 drives the worm 11 to drive the worm wheel 12 and the bidirectional screw 4 to rotate, and the contact head 8 on the sliding block 5 drives the chains to approach each other, which is convenient for positioning and pulling the chain closer and facilitating the installation of the chain link 17.

[0021] The outer wall of the sliding block 5 is slidably connected to the outer wall of the sliding hole 2 and the strip hole 3 respectively, and a rotating hole 10 is opened on the outer wall of the top of the hand-held rod 1 at the center of the bidirectional screw 4, and a worm 11 is rotatably connected to the rotating hole 10 on the inner wall of the sliding hole 2.

[0022] A worm wheel 12 is welded at the center of the outer wall of the bidirectional screw 4, and the worm wheel 12 is engaged with the worm 11. The worm wheel 12 and the worm 11 drive to reduce the speed and increase the torque to facilitate pulling the chain closer, facilitate auxiliary installation, and facilitate use.

[0023] The two ends of the worm 11 are slidably connected to the inner walls of the sliding hole 2 and the rotating hole 10, and a driving groove 13 is opened on the outer walls of both ends of the worm 11, and a crank 14 is inserted into the driving groove 13. The contact head 8 is inserted into the two chains respectively, and the contact head 8 on the handheld rod 1 is used to pull the two chains. The crank 14 is inserted into the driving groove 13 of the worm 11, and the crank 14 is manually rotated to drive the worm 11 to rotate. The worm 11 is engaged with the worm wheel 12 and then drives the bidirectional screw 4 to rotate. After the bidirectional screw 4 rotates, the contact heads 8 on the sliding block 5 are brought closer to each other, and then the two chains are pulled into each other.

[0024] Plug sockets 9 are installed at both ends of the outer wall of one side of the hand-held rod 1 at equal distances, and the threaded head 7 and the contact head 8 are both plugged into the plug sockets 9.

[0025] A hanging ring 16 is welded at the center of the outer wall of one end of the hand-held rod 1, and a plug-in plate 15 is welded at one end of the bottom outer wall of the hand-held rod 1. The hand-held rod 1 is easy to carry and use through the plug-in plate 15 and the hanging ring 16.

[0026] Working principle: When in use, the contact head 8 and the threaded head 7 are taken out from the socket 9 according to the size of the chain, and the contact head 8 is screwed into the threaded hole 6 of the sliding seat 5 through the threaded head 7. The two chains are brought close to each other and the contact heads 8 are respectively inserted into the two chains. The contact head 8 on the handheld rod 1 pulls the two chains, and the crank 14 is inserted into the driving groove 13 of the worm 11. The crank 14 is manually rotated to drive the worm 11 to rotate. The worm 11 engages with the worm wheel 12 and then drives the bidirectional screw 4 to rotate. After the bidirectional screw 4 rotates, the contact heads 8 on the sliding block 5 are brought close to each other, thereby pulling the two chains together. After they are pulled to a certain distance, the chain connecting ring 17 is installed. After separating the chain connecting rings 17, they are respectively inserted into one end of the two chains. Then the chain connecting rings 17 are merged and fixed. After completing the installation of the chain connecting ring 17, the crank 14 can be rotated in the opposite direction to remove the handheld rod 1 from the chain, which is convenient for tightening and positioning, and convenient for installing the chain connecting ring.

[0027] The present invention is described in detail with reference to the examples of the exemplary embodiments. However, it will be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the scope of protection of the present invention, which is determined by the appended claims. The foregoing description of the specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention and various different options and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A flat type chain link positioning and clamping device for mining, comprising a handheld rod (1) and a chain link (17) placed at the top of the handheld rod (1), characterized in that: A sliding hole (2) is provided at the inner center of the hand-held rod (1), and strip holes (3) are provided at both ends of the outer wall of the top of the hand-held rod (1) at the center of the sliding hole (2). The hand-held rod (1) is rotatably connected to a bidirectional screw rod (4) at the center of the sliding hole (2), and both ends of the outer wall of the bidirectional screw rod (4) are threadedly connected to a sliding block (5). A threaded hole (6) is provided at the top center of the sliding block (5), and a threaded head (7) is threadedly connected to the threaded hole of the sliding block (5), and a contact head (8) is welded to the outer wall of the top end of the threaded head (7).

2. A mining flat link positioning and clamping device according to claim 1, characterized in that: The outer wall of the sliding block (5) is slidably connected to the outer wall of the sliding hole (2) and the outer wall of the strip hole (3), and a rotating hole (10) is provided on the outer wall of the top of the hand-held rod (1) at the center of the bidirectional screw (4). The inner wall of the sliding hole (2) is rotatably connected to a worm (11) at the rotating hole (10).

3. A mining flat link positioning and clamping device according to claim 1, characterized in that: A worm wheel (12) is welded at the center of the outer wall of the bidirectional screw (4), and the worm wheel (12) is meshed with the worm (11).

4. A mining flat link positioning and clamping device according to claim 2, characterized in that: The two ends of the worm (11) are slidably connected to the inner wall of the sliding hole (2) and the rotating hole (10), and the outer walls of both ends of the worm (11) are provided with a driving groove (13), and a crank (14) is inserted into the driving groove (13).

5. A mining flat link positioning and clamping device according to claim 1, characterized in that: Plug sockets (9) are installed at both ends of an outer wall of one side of the hand-held rod (1) and are distributed at equal distances, and the threaded head (7) and the contact head (8) are both plugged into the plug sockets (9).

6. A mining flat link positioning and clamping device according to claim 1, characterized in that: A hanging ring (16) is welded at the center of the outer wall of one end of the hand-held rod (1), and a plug-in plate (15) is welded at one end of the bottom outer wall of the hand-held rod (1).

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