Elastic coupling

Abstract

The utility model discloses an elastic coupling, which relates to the technical field of couplings and comprises a first coupling band and a second coupling band which are opposite left and right, a first collar is arranged on the right edge of the outer side wall of the first coupling band, and a second collar is arranged on the left edge of the outer side wall of the second coupling band. Pin holes are formed in the first shaft ring and the second shaft ring in a central symmetry mode, connecting plates are arranged at the left end of the first shaft ring in a front-back symmetry mode, turnover plates are symmetrically placed on the upper side and the lower side of each connecting plate, a semi-ring plate is arranged between the turnover plates which are opposite in the front-back direction, and the inner edge and the outer edge of each semi-ring plate are aligned to the first shaft ring. Mounting holes are correspondingly formed in the folding plate and the connecting plate, bolts are inserted between the vertically opposite mounting holes, the tail portions of the bolts are in threaded connection with first nuts, conical surface holes are evenly formed in the semi-ring plate, and the elastic sleeve abrasion part can be conveniently maintained, disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to an elastic coupling. Background Art

[0002] The elastic sleeve pin coupling utilizes a pin with an elastic sleeve on one end, which is installed in the flange hole of the two coupling halves to connect the two coupling halves. The pins are installed on one half coupling one by one through nuts. The elastic sleeve on the pin will be blocked by the flange of the half coupling, and it is not easy to observe the wear of the elastic sleeve. If the elastic sleeve is to be exposed, the coupling needs to be moved, which is inconvenient in maintenance and replacement. Utility Model Content

[0003] The purpose of the present utility model is to provide an elastic coupling to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elastic coupling, comprising a first coupling sleeve and a second coupling sleeve opposite to each other on the left and right sides, the first coupling sleeve having a right edge provided on the outer wall of the first coupling sleeve, and a second coupling sleeve provided on the left edge of the outer wall of the second coupling sleeve, the first coupling sleeve and the second coupling sleeve both having a pin hole symmetrically provided on the center, the left end of the first coupling sleeve being symmetrically provided with a connecting plate front and back, the upper and lower sides of the connecting plate being symmetrically placed with a folding plate, a semi-ring plate being provided between the front and rear opposite folding plates, the inner and outer edges of the semi-ring plate being aligned with the first coupling sleeve, the folding plate and the connecting plate having corresponding mounting holes, a bolt being inserted between the upper and lower opposite mounting holes, the tail of the bolt being threadedly connected to a first nut, the semi-ring plate being evenly provided with conical holes, a pin being inserted into the conical hole, the left end of the pin being threadedly connected to the second nut, and an elastic sleeve being provided on the outer side of the pin.

[0005] Preferably, rubber rings are provided on the outer side of the mounting hole and on both sides of the conical hole, and rubber pads are provided on both sides of the connecting plate.

[0006] Preferably, key slots are provided on the inner sides of the first coupling sleeve and the second coupling sleeve.

[0007] Compared with the prior art, the beneficial effects of the present invention are: the pin is fixed to the two semi-ring plates instead of being fixed on the shaft ring flange, and the semi-ring plates are fixed to the first shaft ring through the folding plates and bolts. After loosening the two bolts on the folding plates, the pin and the elastic sleeve can be pulled out from the second shaft ring to facilitate observation of the wear of the elastic sleeve. After removing the semi-ring plates, there is more space to disassemble and assemble the pin and the elastic sleeve, which facilitates maintenance and disassembly work. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present utility model.

[0009] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0010] Figure 3 It is a schematic diagram of the left side cross-sectional structure of the bolt of the utility model.

[0011] Figure 4 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0012] In the figure: 1. First coupling sleeve; 2. Second coupling sleeve; 3. First shaft collar; 4. Second shaft collar; 5. Pin hole; 6. Connecting plate; 7. Folding plate; 8. Semi-ring plate; 9. Mounting hole; 10. Bolt; 11. First nut; 12. Conical hole; 13. Pin; 14. Second nut; 15. Elastic sleeve; 16. Rubber ring; 17. Rubber pad. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figure 1-4The utility model provides a technical solution: an elastic coupling, comprising a first coupling sleeve 1 and a second coupling sleeve 2 opposite to each other on the left and right, a first shaft ring 3 is provided on the right edge of the outer wall of the first coupling sleeve 1, and a second shaft ring 4 is provided on the left edge of the outer wall of the second coupling sleeve 2, and pin holes 5 are symmetrically opened on the first shaft ring 3 and the second shaft ring 4. The first coupling sleeve 1 and the second coupling sleeve 2 are both cylindrical and through-through, and are connected to the external driving shaft and driven shaft through the first coupling sleeve 1 and the second coupling sleeve 2. The shaft ring is fixed on the outer edge of the coupling sleeve, and one side of the shaft ring is flush with one side of the coupling sleeve. The pin holes 5 are symmetrically distributed on the coupling sleeve. The shaft ring and the pin holes 5 are relative to the flange and edge holes mentioned in the background technology, and the pin holes 5 are provided for The other components pass through so that the first coupling sleeve 1 and the second coupling sleeve 2 can be linked together. The thickness of the second shaft ring 4 is greater than that of the first shaft ring 3 in order to make the pin hole 5 on the second coupling sleeve 2 have more contact area. The left end of the first shaft ring 3 is symmetrically provided with a connecting plate 6, and folding plates 7 are symmetrically placed on the upper and lower sides of the connecting plate 6. A semi-ring plate 8 is provided between the front and rear opposite folding plates 7. The inner and outer edges of the semi-ring plate 8 are aligned with the first shaft ring 3. The two connecting plates 6 are fixed on the first shaft ring 3 and the first coupling sleeve 1. The two folding plates 7 are fixed on the straight edges at both ends of the semi-ring plate 8. The folding plate 7 forms an angle of 90° relative to the semi-ring plate 8. The semi-ring plate 8 and the folding plate 7 can be respectively attached to the first shaft ring 3 and the first coupling sleeve 1. The folding plates 7 and the connecting plate 6 are provided with corresponding mounting holes 9, and a bolt 10 is inserted between the upper and lower relative mounting holes 9, and the tail of the bolt 10 is threadedly connected with a first nut 11. The mounting hole 9 is opened through the folding plate 7 and the connecting plate 6, and the mounting hole 9 is for the bolt 10 to pass through. The head of the bolt 10 is large and is formed with a groove for inserting an external tool. The tail of the bolt 10 is formed with an external thread, and the folding plate 7 is fixed to the connecting plate 6 by the bolt 10 and the first nut 11. At the same time, the semi-ring plate 8 is also fixed to fit on the first shaft ring 3. The mounting hole 9 on the connecting plate 6 can also be a notch-shaped slot, so that after the first nut 11 is properly loosened, the folding plate 7 and the semi-ring plate 8 can be translated to facilitate separating the semi-ring plate 8 from the first shaft ring 3. The semi-ring plate 8 is evenly provided with conical holes 12, and a pin 13 is inserted into the conical hole 12. The left end of the pin 13 is threadedly connected to the second nut 14, and the outer side of the pin 13 is covered with an elastic sleeve 15. A plurality of conical holes 12 are opened on the semi-annular plate 8 on the left and right. The left side of the conical hole 12 is thinner and the right side is thicker. The middle part has a smooth transition. The pin 13 can be inserted from right to left and fit into the conical hole 12 of the semi-annular plate 8. The right end head of the pin 13 is formed with a groove for inserting an external tool, and the left end tail of the pin 13 is formed with an external thread. The pin 13 is fixed to the semi-annular plate 8 by the second nut 14. The elastic sleeve 15 is sleeved on the outer side of the pin 13, and the left and right coupling sleeves are connected by extending the elastic sleeve 15 into the pin hole 5 of the second shaft ring 4.The elastic sleeve 15 acts as a buffer so that the coupling sleeve on one side can drive the coupling sleeve on the other side to rotate.

[0015] Specifically, rubber rings 16 are provided on the outside of the mounting hole 9 and on both sides of the conical hole 12, and rubber pads 17 are provided on both sides of the connecting plate 6. The rubber pads 17 and the rubber rings 16 are used to improve the fastening effect and stability of the connection between related components.

[0016] Specifically, keyways are provided on the inner sides of the first coupling sleeve 1 and the second coupling sleeve 2 , and the coupling sleeves can be connected to the external driving shaft and driven shaft by key connection.

[0017] Working principle: When the coupling needs to be maintained or inspected, the bolts 10 on the folding plate 7 and the connecting plate 6 can be removed first, and then the folding plate 7 and the semi-ring plate 8 can be removed, and the pin 13 and the elastic sleeve 15 fixed on the semi-ring plate 8 are moved out together. After the elastic sleeve 15 is pulled out, the wear of the elastic sleeve 15 can be visually observed to decide whether to replace it. If replacement is required, the pins 13 can be removed one by one, and the elastic sleeve 15 can be replaced and then reinstalled and tightened with a nut. After the semi-ring plate 8 is taken out, there will be more space for disassembly and assembly, or a semi-ring plate 8 with the pin 13 and the elastic sleeve 15 installed can be directly replaced, and the semi-ring plate 8 can be fitted to the first shaft ring 3, and the folding plate 7 can be fitted to the connecting plate 6, and then the bolts 10 are passed through the mounting holes 9 and tightened with the nuts to complete the maintenance and replacement of the elastic sleeve 15.

[0018] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic coupling, comprising a first coupling sleeve (1) and a second coupling sleeve (2) opposite to each other, characterized in that: A first shaft ring (3) is provided on the right edge of the outer wall of the first coupling sleeve (1), and a second shaft ring (4) is provided on the left edge of the outer wall of the second coupling sleeve (2). Pin holes (5) are symmetrically provided on the first shaft ring (3) and the second shaft ring (4). A connecting plate (6) is symmetrically provided at the left end of the first shaft ring (3). Folding plates (7) are symmetrically placed on the upper and lower sides of the connecting plate (6). A semi-annular plate (8) is provided between the front and rear facing folding plates (7). The inner and outer edges of the semi-annular plate (8) are aligned with the inner and outer edges of the semi-annular plate (8). The first shaft ring (3) is aligned, and mounting holes (9) are correspondingly opened on the folding plate (7) and the connecting plate (6), and a bolt (10) is inserted between the upper and lower mounting holes (9), and the tail of the bolt (10) is threadedly connected to the first nut (11), and the semi-ring plate (8) is evenly opened with a conical hole (12), and a pin (13) is inserted into the conical hole (12), and the left end of the pin (13) is threadedly connected to the second nut (14), and the outer side of the pin (13) is covered with an elastic sleeve (15).

2. The elastic coupling according to claim 1, characterized in that: Rubber rings (16) are provided on the outside of the mounting hole (9) and on both sides of the conical hole (12), and rubber pads (17) are provided on both sides of the connecting plate (6).

3. The elastic coupling according to claim 1, characterized in that: Key slots are provided on the inner sides of the first coupling sleeve (1) and the second coupling sleeve (2).

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