Vertical chain connecting ring of flat chain

Abstract

The utility model discloses a flat chain vertical type chain connecting ring which comprises a lower retaining ring, an upper retaining ring is erected over the lower retaining ring, a first clamping groove is formed in the left end of the side, opposite to the upper retaining ring, of the lower retaining ring, a first rubber mat is arranged in the first clamping groove, and the top face of the first rubber mat is fixedly connected with the upper retaining ring. The bottom face of the first rubber mat is attached to the lower retaining ring in an extrusion mode, a second clamping groove is formed in the right end of the side, opposite to the upper retaining ring, of the lower retaining ring, a second rubber mat is arranged in the second clamping groove, the bottom face of the second rubber mat is fixedly connected with the lower retaining ring, and the top face of the second rubber mat is attached to the upper retaining ring in an extrusion mode. The upper side and the lower side, opposite to each other, of the first clamping groove and the second clamping groove are designed to be arc-shaped curved surfaces rightwards, so that the first clamping groove and the second clamping groove are stressed more evenly after being buckled and can adapt to tension of all angles of the chain for limiting and blocking, noise and friction loss generated in the using process are reduced, and it is ensured that the buckling seam is always in an extrusion sealing state.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical chain connectors, in particular to a flat chain vertical chain connector. Background Technique

[0002] The chain connector is an important part of the chain traction equipment, mainly used in transportation equipment such as coal mine scraper conveyors, transfer machines, and coal planers. There are currently five types of chain connectors: flat chain connectors, vertical chain connectors, arc-tooth chain connectors, serrated chain connectors, and open-chain connectors. Among them, the full name of the vertical ring chain connector is a mine vertical chain connector, and the raw material is made of high-quality alloy steel. It is a new type of lock-type chain connector, which is mostly divided into upper and lower half rings, and is assembled into a complete chain connector by horizontal sliding and fitting. Then, a locking pin is used for sliding limit, and the chain is buckled inside it to complete the connection function. During the operation of the chain, the force direction has a certain deviation, and the corresponding chain connector will face the tensile force within a certain angle range. This will cause the upper and lower half rings to have vertical component forces, making the mating surfaces of the upper and lower half rings unevenly stressed, and prone to problems of upper and lower loosening. In addition, during the use of the chain connector, its mating surface is prone to slight collision and friction, resulting in noise and friction loss, and gaps appear at the joint under the action of the chain pulling and rebounding, and dust accumulates, resulting in dirt at the joint between the two rings and reducing the stability of its buckling. Content of the Utility Model

[0003] The purpose of the utility model is to provide a flat chain vertical chain connector, so that the force is more uniform after the two are buckled, it can adapt to the tensile force of the chain at various angles for limit blocking, and reduce the noise and friction loss generated by slight collision and friction on the mating surface during its use, and ensure that the buckling joint is always in a state of extrusion seal.

[0004] The cam is secured to the upper and lower ends of the chain, and the cam is secured to the lower ends of the chain by a spring, which is then engaged with the bosses. The rubber pad is fixedly connected to the lower buckle ring, and the top surface of the second rubber pad is squeezed and fitted with the upper buckle ring. The upper and lower opposite sides of the first and second slots are both designed with an arc-shaped curved surface to the right. By designing a curved surface that bends to the right on the left and right docking surfaces of the upper and lower buckle rings, the two can be more evenly stressed after the buckling is completed, and can adapt to the tension of the chain at various angles for limited blocking. At the same time, rubber pads are fitted on the entire docking surfaces of the two buckles for flexible docking, thereby reducing the noise and friction loss caused by slight collision and friction on the docking surfaces during use. In addition, the rubber pad has resilience, which can ensure that the buckled joint is always in an extruded and sealed state, avoiding gaps at the joints and dust accumulation under the action of chain pulling and rebound, resulting in contamination at the docking point between the two buckles and reducing the stability of the buckling.

[0005] According to the flat chain vertical link, the front and rear ends of the threaded limit rod extend out of the outer ring sleeve and are symmetrically sleeved with positioning screw rings, which are threadedly connected to the threaded limit rod and have opposite sides pressed and fitted with the outer ring sleeve. The two ends of the threaded limit rod are double-threadedly connected and positioned, so that it can be permanently fixed in the two ring sleeves.

[0006] According to the flat chain vertical link, the adjacent sides of the inner ring sleeve and the outer ring sleeve are both covered with a layer of lubricating film, and the contact surfaces of the lubricating film slide left and right to reduce the friction loss when the two are in contact.

[0007] According to the flat chain vertical link, a positioning card is symmetrically arranged on the side opposite to the upper buckle ring of the lower buckle ring, and the opposite side of the positioning card is fixedly connected to the upper buckle ring and the lower buckle ring respectively, and the opposite side of the positioning card extends into the inner wall of the lower buckle ring and the upper buckle ring and slides with the two to ensure the relative stability of the upper and lower positions after buckling.

[0008] According to the described flat chain vertical connecting link, on the left side at the top of the first card slot and symmetrically above and below on the right side at the bottom of the second card slot, there are spring cylinders installed. The spring cylinders are correspondingly fitted and fixed in the inner walls of the upper snap ring and the lower snap ring and fixedly connected to both. At the centers of the opposite sides of the spring cylinders up and down, there are elastic connecting heads. The connecting heads are elastically slidably connected up and down inside the springs correspondingly. The opposite sides of the connecting heads up and down extend into the inner walls of the lower snap ring and the upper snap ring correspondingly and are engaged and fitted with them up and down. After being buckled in place, it automatically rebounds and is position-limited and engaged to prevent the two snap rings from retreating.

[0009] According to the described flat chain vertical connecting link, at the centers of the front and rear sides of the lower snap ring and the upper snap ring, there are fixed connecting plates. The opposite sides of the connecting plates in the front and rear directions are subjected to frosted treatment. It is convenient for the operator to hold the upper and lower snap rings and slide and buckle them in the left and right directions to prevent slipping.

[0010] According to the described flat chain vertical connecting link, protective shell sleeves are sleeved on the outer sides of the lower snap ring and the upper snap ring. The opposite sides of the protective shell sleeves in the up and down directions are in close contact. It isolates and closes the outside of the snap ring and provides friction protection.

[0011] According to the described flat chain vertical connecting link, the left side at the bottom of the lower support and the right side at the top of the upper support extend relatively and reversely to form an arc shape. It improves the connection stability between the support and the snap ring while not affecting the placement of the chain.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, through the curved surface design that bends to the right on the left and right docking surfaces of the upper snap ring and the lower snap ring, the force is more evenly distributed after the two are buckled, and it can adapt to the tensile force at various angles of the chain for position-limiting and blocking.

[0014] 2. On the entire docking surface of the two snap rings, a rubber pad is adhesively provided for flexible docking, thereby reducing the noise and frictional loss generated by slight collision and friction on the docking surface during its use. In addition, the rubber pad has resilience, which can ensure that the buckling joint is always in a state of extrusion and sealing, preventing gaps from appearing at the joint under the action of the chain pulling and rebounding and dust accumulating, resulting in dirt on the docking part between the two snap rings and reducing the buckling stability.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0017] Figure 1 Schematic diagram of the horizontal docking position of a flat chain vertical connecting link of the present utility model;

[0018] Figure 2 Schematic diagram of the structure of the lower snap ring in a flat chain vertical connecting link of the present utility model;

[0019] Figure 3 Schematic diagram of the structure of the upper snap ring in a flat chain vertical connecting link of the present utility model;

[0020] Figure 4 Overall schematic diagram of a flat chain vertical connecting link of the present utility model.

[0021] In the figure: 1. Lower snap ring; 2. Upper snap ring; 3. Lower support; 4. Outer ring sleeve; 5. Upper support; 6. Inner ring sleeve; 7. Threaded limit rod; 8. Positioning screw ring; 9. First card slot; 10. Second card slot; 11. First rubber pad; 12. Second rubber pad; 13. Positioning card board; 14. Spring cylinder; 15. Clamping head; 16. Embedded board; 17. Protective shell sleeve. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4, the present utility model provides a technical solution: a flat chain vertical connecting link, which includes a lower snap ring 1. An upper snap ring 2 is arranged directly above the lower snap ring 1. In the middle of the inner side of the lower snap ring 1, a lower support 3 is fixedly connected. On the top of the lower support 3, outer ring sleeves 4 are symmetrically fixed front and back. In the middle of the inner side of the upper snap ring 2, an upper support 5 is fixedly connected. In the middle of the bottom side of the upper support 5, an inner ring sleeve 6 is fixedly connected. The inner ring sleeve 6 and the outer ring sleeve 4 are in left and right fitting sliding connection adjacent to each other. A threaded limiting rod 7 is threadedly connected inside the inner ring sleeve 6 and the outer ring sleeve 4. On the left end of the side of the lower snap ring 1 opposite to the upper snap ring 2, there is a first card slot 9. A first rubber pad 11 is arranged in the first card slot 9. The top surface of the first rubber pad 11 is fixedly connected to the upper snap ring 2, and the bottom surface of the first rubber pad 11 is in extrusion fit with the lower snap ring 1. On the right end of the side of the lower snap ring 1 opposite to the upper snap ring 2, there is a second card slot 10. A second rubber pad 12 is arranged in the second card slot 10. The bottom surface of the second rubber pad 12 is fixedly connected to the lower snap ring 1, and the top surface of the second rubber pad 12 is in extrusion fit with the upper snap ring 2. The upper and lower opposite sides of the first card slot 9 and the second card slot 10 are both designed as arc-shaped curved surfaces to the right. The left side of the bottom of the lower support 3 and the right side of the top of the upper support 5 extend oppositely in an arc shape. Protective shell sleeves 17 are sleeved on the outer sides of the lower snap ring 1 and the upper snap ring 2, and the upper and lower opposite sides of the protective shell sleeves 17 are in fitting contact with each other.

[0024] Both the front and rear ends of the threaded limiting rod 7 extend out of the outer ring sleeve 4, and positioning screw rings 8 are symmetrically sleeved thereon. The positioning screw rings 8 are both threadedly connected to the threaded limiting rod 7, and their opposite sides are in extrusion fit with the outer ring sleeve 4. At the centers of the front and rear sides of the lower snap ring 1 and the upper snap ring 2, embedding plates 16 are fixedly connected. The opposite sides of the embedding plates 16 are both subjected to frosting treatment. A layer of sliding film is covered and attached to the adjacent side surfaces of the inner ring sleeve 6 and the outer ring sleeve 4. The sliding film contact surfaces are in left and right sliding fit, which is convenient for manual operation and docking and reduces the wear generated during docking. Finally, the double-position fixation of its limiting structure is carried out to ensure stable limiting.

[0025] Positioning clamping plates 13 are symmetrically arranged left and right on the side of the lower snap ring 1 opposite to the upper snap ring 2. The opposite sides of the positioning clamping plates 13 are respectively fixedly connected to the upper snap ring 2 and the lower snap ring 1. The opposite sides of the positioning clamping plates 13 respectively extend into the inner walls of the lower snap ring 1 and the upper snap ring 2 and are in left and right sliding fit with the two. On the upper left side of the first card slot 9 and the lower right side of the second card slot 10, spring cylinders 14 are symmetrically arranged up and down. The spring cylinders 14 are correspondingly embedded and fixed in the inner walls of the upper snap ring 2 and the lower snap ring 1 and are fixedly connected to the two. At the centers of the upper and lower opposite sides of the spring cylinders 14, clamping heads 15 are elastically connected. The clamping heads 15 are respectively in up and down elastic sliding connection inside the springs. The upper and lower opposite sides of the clamping heads 15 respectively extend into the inner walls of the lower snap ring 1 and the upper snap ring 2 and are in up and down clamping fit with the two, improving the transverse and longitudinal limiting strength of the two snap rings after docking.

[0026] Working principle: In this utility model, first, two chains are sleeved on the inner sides of the two ends of the lower buckle 1 from left to right. Then, grasp the upper buckle 2 and push it horizontally from the upper right side of the lower buckle 1 to the left, so that the first card slot 9 and the second card slot 10 are gradually closed. The positioning card plate 13 is correspondingly inserted into the buckle ring, and the card head 15 is vertically retracted into the spring cylinder 14 under force until the first rubber pad 11 and the second rubber pad 12 are correspondingly squeezed and fitted to the entire outer surface of the buckle ring. At this time, the first card slot 9 and the second card slot 10 are completely closed, the upper buckle and the lower buckle are tightly buckled through the arc-shaped curved surface, the positioning card plate 13 is completely embedded in the buckle ring, and finally the card head 15 is released to the inner wall of the corresponding buckle ring under the elastic return of the spring cylinder 14 for fitting and limiting, completing the preliminary buckling. At this time, the outer ring sleeve 4 and the inner ring sleeve 6 also correspondingly move to the same central axis. The operator rotates the threaded limiting rod 7 and inserts it into the inner sides of the two ring sleeves to limit and fix the two, and then screws the two threaded rings onto the two ends of the threaded limiting rod 7 for fixation.

[0027] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains, various changes can also be made without departing from the gist of the present utility model.

Claims

1. A flat chain vertical link, comprising a lower buckle ring (1), characterized in that: An upper buckle ring (2) is mounted directly above the lower buckle ring (1), a lower support (3) is fixedly connected to the middle inner part of the lower buckle ring (1), an outer ring sleeve (4) is symmetrically fixed to the top of the lower support (3), an upper support (5) is fixedly connected to the middle inner part of the upper buckle ring (2), an inner ring sleeve (6) is fixedly connected to the middle bottom part of the upper support (5), the inner ring sleeve (6) and the outer ring sleeve (4) are adjacent to each other and are slidably connected to each other left and right, and a threaded limiting rod (7) is threadedly connected to the inner side of the inner ring sleeve (6) and the outer ring sleeve (4); A first slot (9) is provided at the left end of the side opposite to the upper buckle ring (2) of the lower buckle ring (1), a first rubber pad (11) is provided in the first slot (9), the top surface of the first rubber pad (11) is fixedly connected to the upper buckle ring (2), and the bottom surface of the first rubber pad (11) is pressed and fitted with the lower buckle ring (1); a second slot (10) is provided at the right end of the side opposite to the upper buckle ring (2) of the lower buckle ring (1), a second rubber pad (12) is provided in the second slot (10), the bottom surface of the second rubber pad (12) is fixedly connected to the lower buckle ring (1), and the top surface of the second rubber pad (12) is pressed and fitted with the upper buckle ring (2); the first slot (9) and the second slot (10) are both designed with arc-shaped curved surfaces facing rightward on the upper and lower opposite sides.

2. A flat chain vertical link as claimed in claim 1, characterized in that: The front and rear ends of the threaded limiting rod (7) extend out of the outer ring sleeve (4) and are symmetrically sleeved with a positioning screw ring (8). The positioning screw ring (8) is threadedly connected to the threaded limiting rod (7) and its opposite side is pressed and fitted with the outer ring sleeve (4).

3. A flat chain vertical link as claimed in claim 1, characterized in that: The adjacent side surfaces of the inner ring sleeve (6) and the outer ring sleeve (4) are both fitted and covered with a layer of synovial film, and the contact surfaces of the synovial film are slidably matched left and right.

4. A flat chain vertical link as claimed in claim 1, characterized in that: A positioning card plate (13) is symmetrically arranged on the left and right sides of the lower buckle ring (1) opposite to the upper buckle ring (2); the opposite side of the positioning card plate (13) is fixedly connected to the upper buckle ring (2) and the lower buckle ring (1), respectively; and the opposite side of the positioning card plate (13) extends into the inner wall of the lower buckle ring (1) and the upper buckle ring (2) and slides left and right with the two.

5. A flat chain vertical link as claimed in claim 1, characterized in that: A spring tube (14) is symmetrically arranged on the top left side of the first clamping slot (9) and the bottom right side of the second clamping slot (10). The spring tube (14) is correspondingly engaged and fixed in the inner walls of the upper buckle ring (2) and the lower buckle ring (1) and is fixedly connected to the two. A clamping head (15) is elastically connected at the center of the upper and lower opposite sides of the spring tube (14). The clamping head (15) is elastically slidably connected to the inner side of the spring. The upper and lower opposite sides of the clamping head (15) are correspondingly extended into the inner walls of the lower buckle ring (1) and the upper buckle ring (2) and are engaged and engaged with the two.

6. A flat chain vertical link as claimed in claim 1, characterized in that: The lower buckle ring (1) and the upper buckle ring (2) are fixedly connected with insert plates (16) at the centers of the front and rear sides thereof, and the front and rear opposite sides of the insert plates (16) are both frosted.

7. A flat chain vertical link as claimed in claim 1, characterized in that: The outer sides of the lower buckle ring (1) and the upper buckle ring (2) are both sleeved with a protective shell (17), and the upper and lower opposite sides of the protective shell (17) are in close contact.

8. A flat chain vertical link as claimed in claim 1, characterized in that: The left side of the bottom of the lower support (3) and the right side of the top of the upper support (5) extend in opposite directions relative to each other and have an arc shape.

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