CN215720314U

CN215720314U - Damping coupling

Info

Publication number: CN215720314U
Application number: CN202122084760.3U
Authority: CN
Inventors: 郭辉强; 冷师红; 陈浩
Original assignee: Changsha Huaheng Robot System Co ltd
Current assignee: Changsha Huaheng Robot System Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-01
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a damping coupling, which comprises a male head, a female head and more than two sealing rings, wherein the front end of the male head is axially provided with a first jack for inserting an external transmission shaft, the rear end of the male head is axially provided with a convex cylindrical plug part, and the more than two sealing rings are sequentially hooped on the plug part at intervals; the rear end of the female head is provided with a second jack along the axial direction so that an external transmission shaft can be inserted, the front end of the female head is provided with a third jack along the axial direction so that a plug part provided with sealing rings can be inserted to form a circle of closed cavities between two adjacent sealing rings, and damping grease is filled in each closed cavity. The utility model has the advantages of simple and compact structure, convenient and fast operation, high transmission effect and easy installation and maintenance.

Description

Damping coupling

Technical Field

The utility model mainly relates to the field of transmission equipment, in particular to a damping coupling.

Background

The coupling can connect two transmission shafts to transmit torque. The coupling can be divided into a rigid coupling and a flexible coupling, the rigid coupling can transmit larger torque, and the flexible coupling can moderate part of impact and absorb part of vibration.

At present, there is an application mechanical thumb on pressing from both sides formula fork of embracing, drives through motor, shaft coupling and dials the finger and realize 90 upsets, for the response is quick, sets up hard fender at two extreme positions, lets to dial and indicates quick stop to reach high-efficient purpose. The flexible coupling can only slow down partial impact, still can let the motor stall, can lead to the motor to transship, and the electric current is too big, and the motor generates heat, and long-time operation can shorten motor life. Therefore, how to invent a coupler which not only can meet the requirement of quick response, but also can not cause the motor to block rotation, prolong the service life of the motor, has a simple and compact structure and is easy to maintain becomes a technical problem to be solved urgently. And since the mechanical fingers require a long time of use, the coupling may require frequent maintenance to maintain its drive torque, or even to modify its drive torque. However, since the transmission devices at the two ends of the coupler are fixedly installed, how to quickly and conveniently maintain the coupler also becomes a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the damping coupling which has the advantages of simple and compact structure, convenience and quickness in operation, high transmission effect and easiness in installation and maintenance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a damping coupling comprises a male head, a female head and more than two sealing rings, wherein the front end of the male head is axially provided with a first jack for inserting an external transmission shaft, the rear end of the male head is axially provided with a convex cylindrical plug part, and the more than two sealing rings are sequentially hooped on the plug part at intervals; the rear end of the female head is provided with a second jack along the axial direction so that an external transmission shaft can be inserted, the front end of the female head is provided with a third jack along the axial direction so that a plug part provided with sealing rings can be inserted to form a circle of closed cavities between two adjacent sealing rings, and damping grease is filled in each closed cavity.

As a further improvement of the utility model, the circumferential surface of the plug part is provided with more than two circles of sealing ring grooves, and a convex sealing ring is arranged in each sealing ring groove in a limiting way.

As a further improvement of the utility model, the circumferential surface of the female head is provided with an injection hole arranged along the radial direction of the female head corresponding to each closed chamber, the injection hole is communicated with the closed chambers for injecting or extracting and replacing damping grease, and each injection hole is internally provided with a detachable sealing plug for sealing the injection hole.

As a further improvement of the utility model, the injection hole is an internal thread hole, and the sealing plug is a screw nail.

As a further improvement of the utility model, the plug part is provided with a lightening hole along the axial direction.

As a further improvement of the utility model, the aperture of the lightening hole is larger than that of the second jack.

As a further improvement of the utility model, a first cutting groove is radially formed in the front end face of the male head, a second cutting groove is formed in the circumferential surface of the front end of the male head, the first cutting groove and the second cutting groove are communicated to form a clamp-type structure at the front end of the male head, a first locking hole penetrating through the first cutting groove is further formed in the circumferential surface of the front end of the male head, and a first locking bolt is arranged in the first locking hole and used for locking the first locking bolt after an external transmission shaft is inserted into the first insertion hole so that the male head of the clamp-type structure can fix the external transmission shaft.

As a further improvement of the present invention, a third cutting groove is radially formed on the rear end face of the female head, a fourth cutting groove is formed on the circumferential surface of the rear end of the female head, the third cutting groove and the fourth cutting groove are communicated to form a clamp structure at the rear end of the female head, a second locking hole penetrating through the third cutting groove is further formed on the circumferential surface of the rear end of the female head, and a second locking bolt is arranged in the second locking hole and used for locking the second locking bolt after the external transmission shaft is inserted into the second insertion hole to fix the external transmission shaft by the female head in the clamp structure.

Compared with the prior art, the utility model has the advantages that:

the damping coupling has the advantages that the damping grease is filled in the sealed cavity formed by the male head, the female head and the sealing ring through the special plug-in type, so that the effect of transmitting torque without blocking a rotating motor can be achieved. The coupling solves the technical defects that the response is quick, but the acceleration is large, the impact on hard limit is large, the vibration is large, and the speed reducer and the motor are easy to damage in the prior art. The damping coupling of the present invention can completely alleviate impact and absorb vibration. The damping coupling transmission torque can be adjusted according to the filling amount of the damping grease and the viscosity of the damping grease, the transmission torque can transmit load, the locked-rotor torque can also be cut off, a speed reducer, a motor and a transmission part are protected, the service life of equipment is prolonged, and the damping coupling is simple to control and reliable to operate.

The damping coupler of the utility model can play a role of limiting and fixing by arranging more than two circles of sealing ring grooves on the circumferential surface of the plug part, so that the sealing ring can not displace during installation, and the space size of the closed cavity and the effective filling of damping grease in the closed cavity are ensured.

In the damping coupler, the injection hole is formed in the circumferential surface of the female head corresponding to each closed cavity along the radial direction of the female head, the transmission torque of the damping coupler can be adjusted according to the filling amount of the damping grease and the viscosity of the damping grease, and the injection hole can be used for injecting or extracting and replacing the damping grease in each closed cavity, so that the maintenance of the damping coupler is well guaranteed. The maintenance does not need to dismantle the connected external equipment or disassemble the male head and the female head, and the operation is convenient and quick.

Drawings

Fig. 1 is a schematic perspective view of the damping coupling of the present invention.

Fig. 2 is a schematic diagram 1 of the top view structural principle of the damping coupling of the present invention.

Fig. 3 is a schematic view of the sectional structure a-a of fig. 2.

Fig. 4 is a schematic view of the structural principle of the section B-B of fig. 2.

Fig. 5 is a schematic cross-sectional structural view of the male of the present invention.

Fig. 6 is a schematic cross-sectional structural view of the female head of the present invention.

Fig. 7 is a schematic diagram of the front view structure of the male head of the present invention.

Fig. 8 is a schematic partial perspective view of the male head of the present invention.

The reference numerals in the figures denote:

1. a male head; 11. a first jack; 12. sealing the ring groove; 13. lightening holes; 14. a first cut groove; 15. a second cut groove; 16. a first locking hole; 17. a first locking bolt; 18. a plug portion; 2. a female head; 21. a second jack; 22. a third jack; 24. an injection hole; 25. sealing the plug; 26. a third cut groove; 27. a fourth slot; 28. a second locking hole; 29. a second locking bolt; 3. a seal ring; 4. the chamber is sealed.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1 to 8, the present invention provides a damping coupling, which includes a male head 1, a female head 2 and more than two sealing rings 3, wherein the front end of the male head 1 is axially provided with a first insertion hole 11 for inserting an external transmission shaft, the rear end of the male head 1 is axially provided with a protruding cylindrical plug portion 18, and the more than two sealing rings 3 are sequentially and alternately hooped on the plug portion 18; the rear end of female head 2 is seted up some second jacks 21 along the axial so that the external transmission shaft inserts, and the front end of female head 2 has seted up third jack 22 along the axial for make plug portion 18 that is equipped with sealing washer 3 insert the back and form the airtight cavity 4 of round between two adjacent sealing washers 3, all packs in every airtight cavity 4 and has damping grease. The specific implementation principle is as follows:

in this embodiment, the damping coupling of the present invention is connected between a mechanical finger (not shown) and a motor (not shown). The first jack 11 at the front end of the male head 1 is used for inserting a transmission shaft of a mechanical finger, and the second jack 21 at the rear end of the female head 2 is used for inserting a transmission shaft of a motor. When the O-shaped sealing ring is installed, more than two O-shaped sealing rings 3 are uniformly coated with grease and are sequentially hooped on the plug part 18 at intervals, and then damping grease is coated and filled between every two adjacent sealing rings 3. The filling amount of the damping grease and the viscosity of the damping grease determine the transmission torque. Then the female head 2 of the plug part 18 provided with the sealing ring 3 is inserted into the third jack 22, and the damping coupling is connected between the mechanical finger and the motor, so that transmission can be carried out. Through the above special design, have following technical advantage:

according to the damping coupling, the special plug-in type male head 1, the special female head 2 and the special sealing ring 3 are designed, and damping grease is filled in a closed cavity 4 formed by the male head and the female head, so that the damping coupling can play a role in transmitting torque without blocking a rotating motor. The coupling solves the technical defects that the response is quick, but the acceleration is large, the impact on hard limit is large, the vibration is large, and the speed reducer and the motor are easy to damage in the prior art. The damping coupling of the present invention can completely alleviate impact and absorb vibration. The damping coupling transmission torque can be adjusted according to the filling amount of the damping grease and the viscosity of the damping grease, the transmission torque can transmit load, the locked-rotor torque can also be cut off, a speed reducer, a motor and a transmission part are protected, the service life of equipment is prolonged, and the damping coupling is simple to control and reliable to operate.

Further, in the preferred embodiment, the circumferential surface of the plug portion 18 is provided with more than two sealing ring grooves 12, and each sealing ring groove 12 is used for installing a protruding sealing ring 3 in a limited manner. The sealing ring groove 12 can play a role in limiting and fixing, so that the sealing ring 3 cannot displace during installation, and the space size of the closed cavity 4 and the effective filling of damping grease in the closed cavity 4 are ensured.

Further, in the preferred embodiment, a filling hole 24 is formed on the circumferential surface of the female head 2 corresponding to each sealed chamber 4, the filling hole 24 is communicated with the sealed chamber 4 for filling or extracting damping grease, and a detachable sealing plug 25 is arranged in each filling hole 24 for sealing the filling hole 24. Because damping shaft coupling transmission torque can adjust according to the viscosity of damping fat filling volume and damping fat, and through setting up filling hole 24, can carry out damping fat injection, perhaps extract the change in every airtight cavity 4, also fine assurance to the maintenance of damping shaft coupling promptly. The maintenance does not need to dismantle the connected external equipment or disassemble the male head 1 and the female head 2, and the operation is convenient and quick.

Further, in the preferred embodiment, the injection hole 24 is an internally threaded hole, and the sealing plug 25 is a threaded nail, so that the injection hole 24 can be opened and sealed for multiple times, and the maintenance operation is effectively guaranteed.

Further, in the preferred embodiment, the plug portion 18 is formed with lightening holes 13 along the axial direction. This is also the focus of the male 1 to facilitate torque transmission. Secondly, the material manufacturing requirement is reduced, and the manufacturing cost is reduced.

Further, in the preferred embodiment, the aperture of the lightening hole 13 is larger than the aperture of the second insertion hole 21. This makes it possible for an external drive shaft to protrude into the lightening opening 13 when it is too long. However, since the diameter of the lightening hole 13 is larger than that of the second insertion hole 21, the plug portion 18 does not cause transmission hindrance to the drive shaft inserted thereinto.

Further, in the preferred embodiment, the front end face of the male head 1 is radially provided with a first slot 14, the circumferential surface of the front end of the male head 1 is provided with a second slot 15, the first slot 14 is communicated with the second slot 15 for forming the front end of the male head 1 into the clasping structure, the circumferential surface of the front end of the male head 1 is further provided with a first locking hole 16 penetrating through the first slot 14, and the first locking hole 16 is internally provided with a first locking bolt 17 for locking the first locking bolt 17 after the external transmission shaft is inserted into the first insertion hole 11 so that the male head 1 in the clasping structure can fix the external transmission shaft. The structural design enables the male head 1 to be firmly connected with an external transmission shaft, so that torque is convenient to transmit, and the transmission effect is excellent.

Further, in the preferred embodiment, the rear end face of the female head 2 is radially provided with a third slot 26, the circumferential surface of the rear end of the female head 2 is provided with a fourth slot 27, the third slot 26 is communicated with the fourth slot 27 for forming the rear end of the female head 2 into the clasping structure, the circumferential surface of the rear end of the female head 2 is further provided with a second locking hole 28 penetrating through the third slot 26, and the second locking hole 28 is internally provided with a second locking bolt 29 for locking the second locking bolt 29 after the external transmission shaft is inserted into the second insertion hole 21 so that the female head 2 in the clasping structure fixes the external transmission shaft. This kind of structural design makes female 2 also can with the firm connection of outside transmission shaft form, the transmission moment of torsion of being convenient for, transmission effect is splendid.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modifications, equivalent changes and variations of the above embodiments can be made according to the technical spirit of the present invention without departing from the technical scope of the present invention.

Claims

1. A damping coupling, characterized by: the anti-theft device comprises a male head (1), a female head (2) and more than two sealing rings (3), wherein a first jack (11) is formed in the front end of the male head (1) along the axial direction so as to enable an external transmission shaft to be inserted into the first jack, a convex cylindrical plug part (18) is formed in the rear end of the male head (1) along the axial direction, and the more than two sealing rings (3) are sequentially hooped on the plug part (18) at intervals; the rear end of the female head (2) is axially provided with a second insertion hole (21) so that an external transmission shaft can be inserted, the front end of the female head (2) is axially provided with a third insertion hole (22) so that a plug part (18) provided with sealing rings (3) can be inserted to form a circle of closed cavity (4) between two adjacent sealing rings (3), and damping grease is filled in each closed cavity (4).

2. The damping coupling of claim 1, wherein: more than two sealing ring grooves (12) are formed in the circumferential surface of the plug part (18), and each sealing ring groove (12) is internally used for limiting and mounting one convex sealing ring (3).

3. The damping coupling of claim 1, wherein: the injection hole (24) which is radially arranged along the female head (2) is formed in the circumferential surface of the female head (2) corresponding to each closed chamber (4), the injection hole (24) is communicated with the closed chambers (4) to be used for injecting damping grease or extracting and replacing the damping grease, and each injection hole (24) is internally provided with a detachable sealing plug (25) to seal the injection hole (24).

4. The damping coupling of claim 3, wherein: the injection hole (24) is an internal threaded hole, and the sealing plug (25) is a threaded nail.

5. The damping coupling of claim 1, wherein: the plug part (18) is provided with a lightening hole (13) along the axial direction.

6. The damping coupling of claim 5, wherein: the aperture of the lightening hole (13) is larger than that of the second insertion hole (21).

7. The damping coupling of claim 1, wherein: the front end face of the male head (1) is radially provided with a first cutting groove (14), the circumferential face of the front end of the male head (1) is provided with a second cutting groove (15), the first cutting groove (14) is communicated with the second cutting groove (15) so as to enable the front end of the male head (1) to form a clamping structure, the circumferential face of the front end of the male head (1) is further provided with a first locking hole (16) penetrating through the first cutting groove (14), a first locking bolt (17) is arranged in the first locking hole (16) and used for locking the first locking bolt (17) after an external transmission shaft is inserted into the first insertion hole (11) so as to enable the male head (1) of the clamping structure to fix the external transmission shaft.

8. The damping coupling of claim 1, wherein: the rear end face of the female head (2) is radially provided with a third cutting groove (26), the circumferential surface of the rear end of the female head (2) is provided with a fourth cutting groove (27), the third cutting groove (26) is communicated with the fourth cutting groove (27) so as to enable the rear end of the female head (2) to form a clamping structure, the circumferential surface of the rear end of the female head (2) is further provided with a second locking hole (28) penetrating through the third cutting groove (26), and a second locking bolt (29) is arranged in the second locking hole (28) and used for locking the second locking bolt (29) after an external transmission shaft is inserted into the second insertion hole (21) so as to enable the female head (2) of the clamping structure to fix the external transmission shaft.