Elastic gear coupling

Abstract

The utility model relates to the technical field of couplings, in particular to an elastic tooth type coupler which comprises an elastic pin tooth type coupler body which is formed by combining a coupling assembly and a fixing assembly. The fixing assembly comprises a first annular gasket and a second annular gasket which are located on the two end faces of the coupling assembly correspondingly, a plurality of sets of polygonal screws distributed annularly and lock nut structures matched with the multiple sets of polygonal screws distributed annularly. Any one of the polygonal screws distributed annularly is formed by combining a polygonal rod body, a threaded rod body and a limiting end seat, an improved connecting structure can be utilized, after the polygonal screws and the lock nut structure are connected, the anti-loosening effect is achieved through stability of a square structure and the opposite abutting effect between nuts, and the anti-loosening effect is achieved. Relative rotation and axial movement of the half coupling shaft and the motor shaft are effectively prevented, and normal work of equipment is guaranteed.

Description

Technical Field

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

[0002] The elastic pin-tooth coupling has the characteristics of high mechanical strength, large load-bearing capacity, light weight, small structural size, high transmission efficiency and transmission accuracy, good reliability, easy assembly and disassembly, no relative sliding, no need for lubrication, long service life, no noise, acid and alkali resistance, etc. It can be used in high and low temperature working environments and environments with oil, water and corrosive media. However, the existing elastic pin-tooth coupling is fixedly connected by bolts, and the simple threaded connection does not have an anti-loosening function. After several disassembly and assembly and long-term operation, it will cause relative rotation and axial movement of the half-coupling shaft and the motor shaft, causing the equipment to fail to work.

[0003] Therefore, it is necessary to design an elastic gear coupling to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide an elastic gear coupling, which utilizes an improved connection structure to achieve an anti-loosening effect, effectively prevents relative rotation and axial movement of the half-coupling shaft and the motor shaft, ensures the normal operation of the equipment, and thus solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An elastic gear coupling comprises an elastic pin gear coupling body, wherein the elastic pin gear coupling body is composed of a coupling assembly and a fixing assembly, wherein the fixing assembly comprises a first annular washer, a second annular washer, and a plurality of groups of polygonal screws distributed in an annular shape, and anti-loosening nut structures matched with the plurality of groups of polygonal screws distributed in annular shape, respectively located at the two end surfaces of the coupling assembly, wherein any one of the plurality of groups of polygonal screws distributed in annular shape is composed of a polygonal rod body, a threaded rod body and a limiting end seat, and the anti-loosening nut structure is composed of a stop plate, a right-handed fastening nut and a left-handed locking nut.

[0007] As a preferred solution of the utility model, the first annular gasket is penetrated by a plurality of groups of polygonal holes distributed in an annular shape, and the enemy annular gasket is penetrated by a plurality of groups of circular holes distributed in an annular shape, and the polygonal holes and the polygonal rod body, the circular holes and the threaded rod body are adapted to each other.

[0008] As a preferred solution of the utility model, the threaded rod body and the limit end seat are respectively fixedly installed at the two ends of the polygonal rod body, and the diameter of the threaded rod body is slightly smaller than the diameter of the inscribed circle of the polygonal rod body. The threaded rod body passes through the interior of the stop plate, the right-handed fastening nut, and the left-handed locking nut in sequence, and the threaded rod body and the right-handed fastening nut and the left-handed locking nut are spirally connected.

[0009] As a preferred solution of the utility model, the coupling assembly is composed of a first half coupling, a second half coupling and a first nylon pin, a second nylon pin, and an external gear sleeve that are symmetrically distributed, and the first annular washer and the second annular washer are respectively mounted on the outer surfaces of the first half coupling and the second half coupling.

[0010] As a preferred solution of the utility model, the first half-coupling and the second half-coupling are respectively embedded and installed at the inner two ends of the outer gear sleeve, the first nylon pin is embedded and installed between the first half-coupling and the outer gear sleeve, and the first nylon pin is arranged in several groups, and the several groups of first nylon pins are distributed in a ring shape, the second nylon pin is embedded and installed between the second half-coupling and the outer gear sleeve, and the second nylon pin is arranged in several groups, and the several groups of second nylon pins are distributed in a ring shape, the first half-coupling and the second half-coupling are both composed of a toothed shaft joint body and a circular shaft joint body, and the toothed shaft joint body is fixedly installed on one end of the circular shaft joint body close to the outer gear sleeve.

[0011] As a preferred solution of the utility model, the inner wall of the external gear sleeve is penetrated by a plurality of groups of first pin half grooves distributed in an annular manner, the interior of the external gear sleeve is penetrated by a plurality of groups of polygonal mounting through holes distributed in an annular manner near the plurality of groups of first pin half grooves distributed in annular manner, the outer surface of the toothed shaft section body is penetrated by a plurality of groups of second pin half grooves distributed in an annular manner, and the inner wall of the circular shaft section body is provided with a pin groove.

[0012] As a preferred solution of the utility model, the several groups of annularly distributed first pin half grooves and the several groups of annularly distributed second pin half grooves are adapted to nylon pins, and the several groups of annularly distributed polygonal mounting through holes correspond to the several groups of annularly distributed polygonal screws.

[0013] Beneficial effect: The existing elastic pin-tooth coupling uses bolts for fixed connection, and the simple threaded connection does not have an anti-loosening function. After several disassembly and assembly and long-term operation, it will cause relative rotation and axial movement of the half-coupling shaft and the motor shaft, causing the equipment to fail to work. The utility model can use an improved connection structure. The polygonal screw and anti-loosening nut structure can achieve an anti-loosening effect by utilizing the square structure stability and the top effect between the nuts after connection, effectively preventing the relative rotation and axial movement of the half-coupling shaft and the motor shaft, ensuring the normal operation of the equipment, thereby solving the problems raised in the above-mentioned background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall three-dimensional external structure diagram of the utility model;

[0015] Figure 2 It is the overall exploded three-dimensional structure diagram of the utility model;

[0016] Figure 3 It is an exploded three-dimensional structural diagram of the coupling assembly in the utility model;

[0017] Figure 4 It is an exploded three-dimensional structural diagram of the fixing assembly in the utility model;

[0018] Figure 5 It is a three-dimensional enlarged structural diagram of the external gear sleeve and the half coupling in the utility model;

[0019] Figure 6 It is a three-dimensional enlarged structural diagram of the polygonal screw and the anti-loosening nut structure in the utility model;

[0020] In the figure: 1. elastic pin gear coupling body; 2. coupling assembly; 21. first half coupling; 22. second half coupling; 23. first nylon pin; 24. second nylon pin; 25. external gear sleeve; 251. first pin half groove; 252. polygonal mounting through hole; 26. toothed shaft joint body; 261. second pin half groove; 27. circular shaft joint body; 271. pin groove; 3. fixing assembly; 31. first annular washer; 311. polygonal hole; 32. second annular washer; 321. circular hole; 33. polygonal screw; 331. polygonal rod body; 332. threaded rod body; 333. limit end seat; 34. anti-loosening nut structure; 341. stopper; 342. right-handed fastening nut; 343. left-handed locking nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0025] See also Figure 1-6 , the utility model provides a technical solution:

[0026] An elastic gear coupling comprises an elastic pin gear coupling body 1, wherein the elastic pin gear coupling body 1 is composed of a coupling assembly 2 and a fixing assembly 3, wherein the fixing assembly 3 comprises a first annular washer 31, a second annular washer 32, and a plurality of groups of polygonal screws 33 distributed in an annular pattern, and a locking nut structure 34 adapted to the plurality of groups of polygonal screws 33 distributed in an annular pattern, wherein any group of the plurality of groups of polygonal screws 33 distributed in an annular pattern is composed of a polygonal rod body 331, a threaded rod body 332 and a limit end seat 333, and the locking nut structure 34 is composed of a stopper 341, a right-handed fastening nut 342 and a left-handed locking nut 343.

[0027] Specifically, the first annular gasket 31 is penetrated by a plurality of groups of polygonal holes 311 distributed in an annular shape, and the enemy annular gasket 32 ​​is penetrated by a plurality of groups of circular holes 321 distributed in an annular shape, and the polygonal holes 311 and the polygonal rod 331, the circular holes 321 and the threaded rod 332 are adapted to each other; the threaded rod 332 and the limiting end seat 333 are respectively fixedly installed at the two ends of the polygonal rod 331, and the diameter of the threaded rod 332 is slightly smaller than the diameter of the inscribed circle of the polygonal rod 331, and the threaded rod 332 passes through the interior of the stopper 341, the right-handed fastening nut 342, and the left-handed locking nut 343 in sequence, and the threaded rod 332 and the right The tightening nut 342 and the left-handed locking nut 343 are screwed together. When fixed, the polygonal screw 33 passes through the interior of the coupling assembly 2, so that the polygonal rod body 331 and the threaded rod body 332 are respectively located at the polygonal hole 311 and the circular hole 321. At the same time, the stopper 341, the right-handed tightening nut 342, and the left-handed locking nut 343 are sequentially installed on the threaded rod body 332. With the improved connection structure, the polygonal screw and the anti-loosening nut structure use the square structure stability and the top-to-top effect between the nuts after connection to achieve the anti-loosening effect, effectively prevent the relative rotation and axial movement of the half-coupling shaft and the motor shaft, and ensure the normal operation of the equipment;

[0028] Preferably, the coupling assembly 2 is composed of a first half coupling 21, a second half coupling 22, a first nylon pin 23, a second nylon pin 24, and an outer gear sleeve 25 which are symmetrically distributed, and a first annular washer 31 and a second annular washer 32 are respectively mounted on the outer surfaces of the first half coupling 21 and the second half coupling 22; the first half coupling 21 and the second half coupling 22 are respectively embedded and installed at the inner ends of the outer gear sleeve 25, the first nylon pin 23 is embedded and installed between the first half coupling 21 and the outer gear sleeve 25, and the first nylon pin 23 is provided in several groups, and the several groups of the first nylon pins 23 are distributed in an annular shape, the second nylon pin 24 is embedded and installed between the second half coupling 22 and the outer gear sleeve 25, and the second nylon pin 24 is provided with several groups At the same time, several groups of second nylon pins 24 are distributed in a ring shape. The first half coupling 21 and the second half coupling 22 are both composed of a toothed shaft joint body 26 and a circular shaft joint body 27, and the toothed shaft joint body 26 is fixedly mounted on one end of the circular shaft joint body 27 close to the outer gear sleeve 25. During assembly, several groups of first nylon pins 23 and second nylon pins 24 are respectively embedded in the pin half grooves installed on the first half coupling 21 and the second half coupling 22, and then the first half coupling 21 and the second half coupling 22 are respectively embedded in the inner ends of the outer gear sleeve 25, and at the same time, the first annular gasket 31 and the second annular gasket 32 ​​are respectively mounted on the outer surfaces of the first half coupling 21 and the second half coupling 22, so as to facilitate the subsequent fixed connection, and the assembly is simple and quick;

[0029] Preferably, the inner wall of the external gear sleeve 25 is penetrated with a plurality of groups of first pin half grooves 251 distributed in an annular manner, the inner part of the external gear sleeve 25 is penetrated with a plurality of groups of polygonal mounting through holes 252 distributed in an annular manner near the plurality of groups of first pin half grooves 251 distributed in an annular manner, the outer surface of the toothed shaft section body 26 is penetrated with a plurality of groups of second pin half grooves 261 distributed in an annular manner, and the inner wall of the circular shaft section body 27 is provided with a pin groove 271; the plurality of groups of first pin half grooves 251 distributed in an annular manner and the plurality of groups of second pin half grooves 261 distributed in an annular manner are adapted to the nylon pins, the plurality of groups of polygonal mounting through holes 252 distributed in an annular manner correspond to the plurality of groups of polygonal screws 33 distributed in an annular manner, and the first pin half grooves 251 and the second pin half grooves 261 provided are convenient for installing and positioning the nylon pins;

[0030] In summary, the utility model can utilize the improved connection structure. The polygonal screw and anti-loosening nut structure can utilize the square structure stability and the top effect between the nuts after connection to achieve the anti-loosening effect, effectively prevent the relative rotation and axial movement of the half-coupling shaft and the motor shaft, and ensure the normal operation of the equipment.

[0031] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic gear coupling, comprising an elastic pin gear coupling body (1), characterized in that: The elastic pin-tooth coupling body (1) is composed of a coupling assembly (2) and a fixing assembly (3), wherein the fixing assembly (3) comprises a first annular washer (31), a second annular washer (32), and a plurality of groups of polygonal screws (33) distributed in an annular shape, respectively located on the two end surfaces of the coupling assembly (2), and a locking nut structure (34) adapted to the plurality of groups of polygonal screws (33) distributed in an annular shape. Any of the plurality of groups of polygonal screws (33) distributed in an annular shape is composed of a polygonal rod body (331), a threaded rod body (332) and a limit end seat (333), and the locking nut structure (34) is composed of a stopper (341), a right-handed fastening nut (342) and a left-handed locking nut (343).

2. The elastic gear coupling according to claim 1, characterized in that: The first annular gasket (31) is provided with a plurality of groups of polygonal holes (311) distributed in an annular shape around its periphery, and the second annular gasket (32) is provided with a plurality of groups of circular holes (321) distributed in an annular shape around its periphery, and the polygonal holes (311) and the polygonal rod body (331), and the circular holes (321) and the threaded rod body (332) are matched.

3. The elastic gear coupling according to claim 1, characterized in that: The threaded rod (332) and the limit end seat (333) are respectively fixedly mounted at the two ends of the polygonal rod (331), and the diameter of the threaded rod (332) is slightly smaller than the diameter of the inscribed circle of the polygonal rod (331). The threaded rod (332) sequentially passes through the interior of the stopper (341), the right-handed fastening nut (342), and the left-handed locking nut (343), and the threaded rod (332) and the right-handed fastening nut (342) and the left-handed locking nut (343) are spirally connected.

4. The elastic gear coupling according to claim 1, characterized in that: The coupling assembly (2) is composed of a first half coupling (21), a second half coupling (22), a first nylon pin (23), a second nylon pin (24), and an external gear sleeve (25) which are symmetrically distributed, and a first annular washer (31) and a second annular washer (32) are respectively sleeved on the outer surfaces of the first half coupling (21) and the second half coupling (22).

5. The elastic gear coupling according to claim 4, characterized in that: The first half coupling (21) and the second half coupling (22) are respectively embedded and installed at the two ends of the inner part of the outer gear sleeve (25); the first nylon pin (23) is embedded and installed between the first half coupling (21) and the outer gear sleeve (25); the first nylon pin (23) is provided in a plurality of groups, and the plurality of groups of first nylon pins (23) are distributed in a ring shape; the second nylon pin (24) is embedded and installed between the second half coupling (22) and the outer gear sleeve (25); the second nylon pin (24) is provided in a plurality of groups, and the plurality of groups of second nylon pins (24) are distributed in a ring shape; the first half coupling (21) and the second half coupling (22) are both composed of a toothed shaft joint body (26) and a circular shaft joint body (27); and the toothed shaft joint body (26) is fixedly installed at one end of the circular shaft joint body (27) close to the outer gear sleeve (25).

6. The elastic gear coupling according to claim 5, characterized in that: The inner wall of the outer gear shaft sleeve (25) is provided with a plurality of groups of first pin half grooves (251) distributed in an annular manner, and the inner part of the outer gear shaft sleeve (25) is provided with a plurality of groups of polygonal mounting through holes (252) distributed in an annular manner near the plurality of groups of first pin half grooves (251) distributed in an annular manner. The outer surface of the toothed shaft section body (26) is provided with a plurality of groups of second pin half grooves (261) distributed in an annular manner, and the inner wall of the circular shaft section body (27) is provided with a pin groove (271).

7. The elastic gear coupling according to claim 6, characterized in that: The plurality of groups of annularly distributed first column pin half grooves (251) and the plurality of groups of annularly distributed second column pin half grooves (261) are compatible with the nylon column pins, and the plurality of groups of annularly distributed polygonal mounting through holes (252) and the plurality of annularly distributed polygonal screws (33) correspond to each other.

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