CN218582110U - A transmission coupling device - Google Patents

Abstract

The utility model relates to a transmission coupling device, relates to the technical field of coupling equipment, and comprises a pre-tightening assembly, a first half coupling and a second half coupling. Arrange the first half-coupling, the pre-tensioning assembly and the second half-coupling in sequence, and then engage the first clamping part with the second clamping part correspondingly, so that the pre-tensioning component It is crimped in the pre-tightening space, and at this time the elastic member is in a compressed state, which can provide a pre-tightening force for the second half coupling. In the buffering process of the expansion and contraction of the elastic member, even if the first half-coupling and the second half-coupling will move in the axial direction, due to the The corresponding clamping connection can stably connect the first half-coupling and the second half-coupling, so that the transmission of the transmission coupling device is stable and can meet practical applications.

Description

A transmission coupling device

technical field

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

Background technique

Coupling is a kind of mechanical connection element commonly used in the mechanical field at present. Coupling refers to a device that connects two shafts or shafts and rotating parts, and rotates together during the process of transmitting motion and power, and does not disengage under normal conditions. . Sometimes it is also used as a safety device to prevent the connected parts from being subjected to excessive loads and play the role of overload protection.

Patent CN106763259A discloses a shaft coupling for axial buffering. Since the elastic buffer is provided, the driving shaft and the driven shaft will not collide when axial movement or vibration occurs. , thereby reducing the wear of the driving shaft and the driven shaft and reducing the probability of fatigue and damage of the two. The transmission efficiency of the driving shaft and the driven shaft is improved, the service life of both is prolonged, and the vibration of the whole equipment is reduced.

However, in the transmission process of the above-mentioned existing coupling, since the elastic buffer is used as a buffer, it also serves as a connecting piece, and the buffer will cause the driving shaft and the driven shaft to move along the Axial movement leads to unstable transmission of the shaft coupling, which cannot meet practical applications. Therefore, a transmission coupling device is urgently needed.

Utility model content

Aiming at the state of the prior art, the utility model provides a transmission coupling device, which can effectively solve the problem that the elastic buffer is used as a buffer and also as a connector during the transmission process of the prior art. During the telescopic buffering process of the buffer member, the driving shaft and the driven shaft will move in the axial direction, resulting in unstable transmission of the coupling, which cannot meet the problem of practical application.

The utility model is realized through the following technical solutions:

The utility model provides a transmission coupling device, comprising:

A pre-tensioning assembly, the pre-tensioning assembly includes a connection body and an elastic member, one end of the elastic member is connected to one end of the connection body, and the other end of the elastic member extends out of one end of the connection body and can be telescopic.

For the first half coupling, a first engaging portion is formed at one end of the first half coupling.

The second half-coupling, one end of the second half-coupling is formed with a second clamping part for clamping the first clamping part, when the first clamping part and the second clamping part When correspondingly clamped, a pre-tightening space for crimping the pre-tightening assembly is formed between the first half-coupling and the second half-coupling, and the first half-coupling points to the second half-coupling. The coupling half is the first direction.

When the pre-tightening assembly is located in the pre-tightening space, the elastic member is in a compressed state for providing a pre-tightening force to the second coupling half.

Further, both the first clamping part and the second clamping part include several connecting flaps for mutual clamping.

Further, the elastic member includes a telescopic rod, a spring and a blocking piece, one end of the telescopic rod is slid on the connecting body along the first direction, the other end of the telescopic rod protrudes from the connecting body and The baffle is provided, the spring is located between the baffle and the connection body, and its two ends are respectively connected to the baffle and the connection body.

Further, the spring is sheathed on the telescopic rod.

Further, the connecting body is ring-shaped, and there are four telescopic rods, and the four telescopic rods are slidably arranged at one end of the connecting body along the first direction, and are evenly distributed along the circumferential direction of the connecting body. layout.

Further, each of the telescopic rods is sheathed with one of the springs.

Further, one end of the connecting body close to the blocking piece is provided with a first positioning groove for clamping the blocking piece.

Further, a first guide protrusion is provided on the end surface of the first coupling half close to the first clamping part, and a guide protrusion is provided on the end of the connecting body close to the first coupling half for clamping. Describe the first guide groove of the first guide protrusion.

Further, the first guide protrusion is an annular protrusion, and the first guide groove is an annular groove.

Further, an anti-skid pad is provided at the end of the blocking piece away from the connecting body.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model arranges parts such as the pre-tightening assembly, the first half-coupling, and the second half-coupling, and the first half-coupling, the pre-tightening assembly and the second half-coupling are first arrangement, and then correspondingly engage the first clamping part with the second clamping part, so that the pretensioning assembly is crimped in the pretensioning space, and at this time the elastic member is in a compressed state, A pre-tightening force can be provided for the second coupling half. The utility model adopts the above-mentioned structure, and in the transmission process, the pre-tightening assembly is only used as a pre-tightening part, not as a connecting part, and can give all The second half-coupling provides a pre-tightening force. During the expansion and contraction buffering process of the elastic member, even if the first half-coupling and the second half-coupling will move axially, due to the The corresponding clamping of the first clamping part and the second clamping part can stably connect the first half-coupling and the second half-coupling, so that the transmission of the transmission coupling device is stable, which can meet practical applications.

Description of drawings

Fig. 1 is a schematic diagram of the explosion structure of an embodiment of the transmission coupling device provided by the present invention;

Fig. 2 is a three-dimensional structural schematic diagram of the next embodiment of the transmission coupling device provided by the utility model in the assembled state;

Fig. 3 is a top view structural schematic diagram of the structure shown in Fig. 2;

Fig. 4 is a schematic diagram of a cross-sectional structure in the A-A direction in Fig. 3;

Fig. 5 is a schematic diagram of a partially enlarged structure of part B in Fig. 4;

FIG. 6 is a schematic diagram of a partially enlarged structure of part C in FIG. 5 .

Reference signs: 1. Preloading assembly; 11. Connecting body; 111. First positioning groove; 112. First guide groove; 12. Elastic member; 121. Telescopic rod; 122. Spring; 123. Block piece; 2. The first half coupling; 21, the first clamping part; 22, the preload space; 23, the first guide protrusion; 3, the second half coupling; 31, the second clamping part.

Detailed ways

The preferred embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. The accompanying drawings constitute a part of the application and are used together with the embodiments of the utility model to illustrate the utility model, not to limit the utility model.

As shown in FIGS. 1 to 6 , a transmission coupling device provided by the present invention includes a preload assembly 1 , a first half coupling 2 and a second half coupling 3 .

The pretensioning assembly 1 includes a connection body 11 and an elastic member 12, one end of the elastic member 12 is connected to one end of the connection body 11, and the other end of the elastic member 12 protrudes from one end of the connection body 11 Partial and scalable.

A first engaging portion 21 is formed at one end of the first half coupling 2 .

One end of the second coupling half 3 is formed with a second engaging portion 31 for engaging the first engaging portion 21 , when the first engaging portion 21 and the second engaging portion 31 are correspondingly engaged When connected, a pre-tightening space 22 for crimping the pre-tightening assembly 1 is formed between the first half-coupling 2 and the second half-coupling 3, and the first half-coupling 2 points to the The second half coupling 3 is in the first direction.

When the pretensioning assembly 1 is located in the pretensioning space 22 , the elastic member 12 is in a compressed state for providing a pretensioning force to the second coupling half 3 .

The utility model first installs the first half-coupling 2, the pre-tightening assembly 1 and the second The half-couplings 3 are arranged in sequence, and then the first clamping part 21 and the second clamping part 31 are correspondingly clamped, so that the pretensioning assembly 1 is crimped in the pretensioning space 22, and this When the elastic member 12 is in a compressed state, it can provide a pre-tightening force to the second half-coupling 3. The utility model is provided with the above-mentioned structure, and in the transmission process, the pre-tightening assembly 1 is only used as The pretensioner is not used as a connecting piece, and can provide a preload to the second half-coupling 3, and the elastic member 12 is in the expansion and contraction buffering process, even if the first half-coupling 2 and The second half-coupling 3 will move in the axial direction, because the first half-coupling 2 and the second half-coupling can be connected through the corresponding snapping of the first snap-in portion 21 and the second snap-in portion 31 . The shaft device 3 is stably connected, so that the transmission of the transmission coupling device is stable, which can meet practical applications.

In order to stabilize the transmission of the transmission coupling device, the first half coupling 2, the second half coupling 3 and the preload assembly connected between the first half coupling 2 and the second half coupling 3 1, wherein, both the first clamping part 21 and the second clamping part 31 include several connecting petals for mutual clamping, which are designed so that the first half coupling 2 and the second half coupling In the transmission process, even the first half coupling 2 and the second half coupling 3 will move axially (this movement is a slight movement, which will not cause the first jam The connection between the connecting portion 21 and the second engaging portion 31 fails.), the connecting petals of the first engaging portion 21 and the second engaging portion 31 can still be engaged together, so that the transmission of the transmission coupling device is stable, In particular, the first clamping part 21 and the second clamping part 31 can also be other connection structures in the prior art, for example, the first clamping part 21 and the second clamping part 31 are both legal The blue plates are provided with threaded holes for connecting the first half coupling 2 and the second half coupling 3 via bolts. When the drive coupling works, the first half coupling 2 transmit the torque to the second half-coupling 3 and drive it to rotate, due to the existence of the pre-tensioning assembly 1, the connection between the first half-coupling 2 and the second half-coupling 3 is more compact, The transmission of the transmission coupling device is stable and convenient for practical application.

In order to make the pre-tightening force more accurately toward the first direction, the elastic member 12 includes a telescopic rod 121, a spring 122 and a blocking piece 123, and one end of the telescopic rod 121 is slid along the first direction and is arranged on the The connecting body 11, the other end of the telescopic rod 121 protrudes from the connecting body 11 and is provided with the blocking piece 123, the spring 122 is located between the blocking piece 123 and the connecting body 11 and its Both ends are respectively connected to the blocking piece 123 and the connecting body 11 . The spring 122 is sheathed on the telescopic rod 121 . The connection body 11 is ring-shaped. There are four telescopic rods 121 , and the four telescopic rods 121 are slidably arranged at one end of the connecting body 11 along the first direction and evenly arranged along the circumferential direction of the connecting body 11 . Each of the telescopic rods 121 is sheathed with one of the springs 122 . In practical application, the first coupling half 2 , the pretensioning assembly 1 and the second coupling half 3 are first arranged in sequence, and then the first engaging part 21 is corresponding to the second engaging part 31 clamping, so that the pre-tensioning assembly 1 is crimped in the pre-tensioning space 22, due to the arrangement of parts such as the telescopic rod 121, the spring 122 and the blocking piece 123, the movement of the blocking piece 123 during compression The position will not shift, and a pre-tightening force can be provided to the second half-coupling 3, and the pre-tightening force is more accurately directed towards the first direction, so that the first half-coupling 2 and the first half-coupling The connection between the second half-couplings 3 is more compact, which indirectly makes the transmission of the transmission coupling device stable and can meet practical applications.

In order to make the pre-tightening force more accurately face the first direction, an end of the connecting body 11 close to the blocking piece 123 defines a first positioning groove 111 for engaging the blocking piece 123 . Such a design can avoid the position displacement of the blocking plate 123 during the compression process, and can make the pre-tightening force more accurately face the first direction.

In order to further make the pre-tightening force more accurately face the first direction, the end surface of the first coupling half 2 close to the first clamping part 21 is provided with a first guide protrusion 23, the connection One end of the body 11 close to the first half coupling 2 defines a first guide slot 112 for engaging the first guide protrusion 23 . The first guide protrusion 23 is an annular protrusion, and the first guide groove 112 is an annular groove. An anti-slip pad is provided on the end of the blocking piece 123 away from the connecting body 11 . This design is mainly to avoid the position displacement of the blocking piece 123 during the compression process, and by setting the first guide protrusion 23 and the first guide groove 112, it is possible to avoid the entire connection of the connecting body 11 and the elastic member 12. offset, and the anti-slip pad is provided to further prevent the extrusion and offset of the blocking piece 123 during the compression process. In summary, the above structure can make the pre-tightening force more accurately toward the first direction, The connection between the first half-coupling 2 and the second half-coupling 3 is made more compact, which indirectly makes the transmission of the transmission coupling device stable and can meet practical applications.

Compared with the prior art, the drive coupling device provided by the utility model has the following beneficial effects:

The utility model first installs the first half-coupling 2, the pre-tightening assembly 1 and the second The half-couplings 3 are arranged in sequence, and then the first clamping part 21 and the second clamping part 31 are correspondingly clamped, so that the pretensioning assembly 1 is crimped in the pretensioning space 22, and this When the elastic member 12 is in a compressed state, it can provide a pre-tightening force to the second half-coupling 3. The utility model is provided with the above-mentioned structure, and in the transmission process, the pre-tightening assembly 1 is only used as The pretensioner is not used as a connecting piece, and can provide a preload to the second half-coupling 3, and the elastic member 12 is in the expansion and contraction buffering process, even if the first half-coupling 2 and The second half-coupling 3 will move in the axial direction, because the first half-coupling 2 and the second half-coupling can be connected through the corresponding snapping of the first snap-in portion 21 and the second snap-in portion 31 . The shaft device 3 is stably connected, so that the transmission of the transmission coupling device is stable, which can meet practical applications.

The above are only preferred embodiments of the present utility model, and are not any formal restrictions on the present utility model. Any simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present utility model all fall into the scope of the present utility model. within the scope of protection.

Claims (10)

1. A transmission coupling device, characterized in that, comprising: A pre-tensioning assembly, the pre-tensioning assembly includes a connection body and an elastic member, one end of the elastic member is connected to one end of the connection body, and the other end of the elastic member extends out of one end of the connection body and can be telescopic; A first half-coupling, one end of the first half-coupling is formed with a first engaging portion; The second half-coupling, one end of the second half-coupling is formed with a second clamping part for clamping the first clamping part, when the first clamping part and the second clamping part When correspondingly clamped, a pre-tightening space for crimping the pre-tightening assembly is formed between the first half-coupling and the second half-coupling, and the first half-coupling points to the second half-coupling. Coupling half is the first direction; When the pre-tightening assembly is located in the pre-tightening space, the elastic member is in a compressed state for providing a pre-tightening force to the second coupling half. 2 . The drive coupling device according to claim 1 , wherein each of the first clamping portion and the second clamping portion includes several connecting flaps for mutual clamping. 3 . 3. The transmission coupling device according to claim 2, wherein the elastic member includes a telescopic rod, a spring, and a blocking plate, and one end of the telescopic rod is slid on the connecting body along the first direction , the other end of the telescopic rod protrudes from the connecting body and is provided with the blocking piece, the spring is located between the blocking piece and the connecting body and its two ends are respectively connected to the blocking piece and the connecting body connect. 4. The drive coupling device according to claim 3, wherein the spring is sheathed on the telescopic rod. 5. The transmission coupling device according to claim 4, characterized in that, the connecting body is annular, and there are four telescopic rods, and the four telescopic rods slide along the first direction and are arranged on the said first direction. one end of the connection body and evenly arranged along the circumference of the connection body. 6 . The drive coupling device according to claim 5 , wherein each telescopic rod is sheathed with one spring. 7 . 7 . The drive coupling device according to claim 6 , wherein a first positioning groove for clamping the blocking piece is defined at one end of the connecting body close to the blocking piece. 8 . 8. The transmission coupling device according to claim 7, wherein a first guide protrusion is provided on the end surface of the first coupling half close to the first clamping part, and the connecting body is close to the end surface of the first clamping part. One end of the first half coupling is provided with a first guide groove for clamping the first guide protrusion. 9 . The transmission coupling device according to claim 8 , wherein the first guide protrusion is an annular protrusion, and the first guide groove is an annular groove. 10 . The drive coupling device according to claim 9 , wherein an anti-slip pad is provided on the end of the blocking piece away from the connecting body. 11 .

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