CN219263031U

CN219263031U - Clutch mechanism

Info

Publication number: CN219263031U
Application number: CN202320374541.5U
Authority: CN
Inventors: 陈美兰; 袁茂银; 姚志刚; 陈志强; 陈冠翰
Original assignee: Hunan Juzhi Technology Co ltd
Current assignee: Hunan Juzhi Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-06-27
Anticipated expiration: 2033-03-03

Abstract

The utility model provides a clutch mechanism which comprises a clutch input shaft, a connecting shaft, a pressure spring, an engagement A part and an engagement B part, wherein the engagement A part is connected to one end of the clutch input shaft, which is close to the connecting shaft, in a co-rotating manner, one end of the connecting shaft, which is close to the engagement A part, is sheathed with the engagement B part in a co-rotating manner, the engagement A part and the engagement B part can engage and transmit drive or disengage from the engagement and cut off the transmission of the drive, the engagement B part is movably arranged along the length direction of the connecting shaft, and the pressure spring for providing pressure for the engagement A part is positioned on the connecting shaft. When the transmission output part is subjected to resistance, power can not be transmitted to the transmission output part, even if the manual operation is continued, the transmission output part can not be caused to act, the transmission output part is ensured to act in place, meanwhile, damage is avoided, and the transmission output part has a pure mechanical structure, is stable in operation, and has a simple and compact structure and low cost.

Description

Clutch mechanism

Technical Field

The utility model belongs to the technical field of mechanical transmission, and particularly relates to a clutch mechanism.

Background

In mechanical transmissions, it is difficult for an operator to determine whether or not various operations are in place and when the manipulations are to be stopped in a manual operation. For example, the first part is moved by manual actuation in order to move the first part into contact with the fixed second part, and the first part and the second part are in a position which is not visible to the operator for reasons of safety or the like. It is difficult for the operator to determine whether the operation is in place, i.e. whether the first part has been moved into contact with the second part. If the first part is already in place, i.e. has been in contact with the second part, during manual operation, then continued manual operation will cause the first part to exert pressure on the second part, damaging the first and second parts.

Disclosure of Invention

The clutch mechanism has the advantages that when the transmission output part is not subjected to resistance, the power of the transmission input part can be transmitted to the transmission output part through the clutch mechanism, when the transmission output part is subjected to resistance, the clutch is automatically disconnected, the power of the transmission input part cannot be transmitted to the transmission output part through the clutch mechanism, at the moment, even if the operation is continued manually, the operation of the transmission output part cannot be caused, the operation of the transmission output part is ensured to be in place, meanwhile, the damage is avoided, and the clutch mechanism is of a pure mechanical structure, and is stable in operation, simple and compact in structure and low in cost.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a clutch mechanism, includes clutch input shaft, connecting axle, pressure spring, interlock A portion and interlock B portion, and interlock A portion is connected in clutch input shaft's one end that is close to the connecting axle with rotating altogether, and the one end that is close to interlock A portion of connecting axle has cup jointed interlock B portion with rotating altogether, and interlock A portion and interlock B portion can interlock and transmit the drive or break away from interlock and cut off the transmission of drive, and interlock B portion is along connecting axle length direction movably setting for pressure spring that provides pressure for interlock A portion is located the connecting axle.

As a further improvement of the above technical scheme:

the meshing A part comprises a roller seat and a plurality of clutch rollers, the roller seat is fixedly connected to one end, close to a connecting shaft, of a clutch input shaft, a plurality of clutch rollers are fixedly arranged on the end face, close to the connecting shaft, of the roller seat, a plurality of clutch roller annular arrays are arranged, an interval is reserved between every two adjacent clutch rollers, the roller interval is a roller interval, the meshing B part comprises a roller seat and a plurality of clutch rollers, the roller seat is sleeved at one end, close to the meshing A part, of the connecting shaft in a co-rotation mode, a plurality of clutch rollers are annularly arranged on the roller seat, one side of each clutch roller contacts with the plurality of clutch rollers, the other side of each clutch roller bears the pressure of a pressure spring, the clutch rollers can move along the length direction of the connecting shaft under the joint action force of the pressure spring and the meshing A part, and the clutch rollers are not fully inserted into the roller intervals respectively, or the clutch rollers completely withdraw from the roller intervals respectively.

The roller seat is provided with a plurality of through holes, the plurality of through holes are annularly arranged in an array, the annular central line is parallel to the length direction of the connecting shaft, the length direction of the through holes is parallel to the length direction of the connecting shaft, a plurality of clutch rollers are respectively arranged in the plurality of through holes on the roller seat, the clutch rollers can move along the length direction of the through holes, the outer diameter of each clutch roller is larger than the length of the through hole, one side of each clutch roller contacts with the clutch roller, and the other side of each clutch roller bears the pressure of a pressure spring.

The clutch roller is a cylinder.

The clutch mechanism further comprises two plane thrust bearings which are sleeved on the connecting shaft at intervals, one side of one plane thrust bearing is contacted with a plurality of clutch rollers, the other side is contacted with one end of the pressure spring, and the other end of the pressure spring is contacted with the other plane thrust bearing.

The roller seat is fixedly arranged on the connecting shaft.

The planar thrust bearing contacting the clutch rollers is a second bearing, the other planar thrust bearing is a first bearing, the first bearing is in interference fit with the connecting shaft, and the second bearing is in clearance fit with the connecting shaft.

The clutch mechanism further comprises a connecting sleeve which is cylindrical and sleeved outside the connecting shaft to surround the occlusion B part, the occlusion A part and the pressure spring.

The clutch mechanism further comprises a clutch input gear and a clutch output gear, wherein the clutch input gear is mounted on the clutch input shaft in a co-rotating manner, and the clutch output gear is mounted on the connecting shaft in a co-rotating manner.

The beneficial effects of the utility model are as follows: the clutch mechanism plays a role of a clutch, when the transmission output part is not subjected to resistance, the power of the transmission input part can be transmitted to the transmission output part through the clutch mechanism, when the transmission output part is subjected to resistance, the clutch is automatically disconnected, the power of the transmission input part cannot be transmitted to the transmission output part through the clutch mechanism, at the moment, even if the operation is manually continued, the operation of the transmission output part cannot be caused, the operation of the transmission output part is guaranteed, meanwhile, the damage is avoided, and the clutch mechanism is of a pure mechanical structure, and is stable in operation, simple and compact in structure and low in cost.

Drawings

Fig. 1 is a schematic diagram of the structure of an embodiment of the present utility model.

FIG. 2 is a schematic illustration of a plurality of clutch rollers and a plurality of clutch roller bite according to one embodiment of the utility model.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The clutch mechanism plays a role of a clutch, two ends of the clutch mechanism are respectively connected with a transmission input part and a transmission output part, the transmission input part is driven manually, and the clutch mechanism transmits the drive of the transmission input part to the transmission output part or cuts off the transmission between the transmission input part and the transmission output part.

As shown in fig. 1 and 2, the clutch mechanism includes a clutch input gear 2, a clutch output gear 1, a clutch input shaft 4, a connecting shaft 9, a connecting sleeve 11, a compression spring 6, an engagement a portion, an engagement B portion, and two planar thrust bearings 5.

The clutch input gear 2 is co-rotatably journalled on a clutch input shaft 4. The clutch output gear 1 is coaxially sleeved on the connecting shaft 9. The clutch input gear 2 and the clutch output gear 1 are arranged in parallel at intervals, and the clutch input gear 2 and the clutch output gear 1 are concentric.

The engagement a is located between the clutch input gear 2 and the clutch output gear 1. The engagement a portion is connected to the clutch input shaft 4 at an end close to the clutch output gear 1 in a co-rotating manner.

One end of the connecting shaft 9 is connected to the clutch output gear 1 in a co-rotating manner, and the other end is inserted into the engagement portion a. The engagement portion B is rotatably coupled to one end of the connecting shaft 9 near the engagement portion a, and is movably provided along the longitudinal direction of the connecting shaft 9. The bite B and bite a may bite and transmit drive or both may be disengaged.

The two plane thrust bearings 5 are respectively sleeved at the two ends of the connecting shaft 9, the two plane thrust bearings 5 are positioned between the clutch output gear 1 and the engagement B part, and the two plane thrust bearings 5 are arranged at intervals in parallel. The plane thrust bearing 5 comprises a moving coil and a static coil, the moving coil can rotate relative to the static coil, and the technical scheme of the structure of the plane thrust bearing 5 is the prior art and is not repeated here.

The planar thrust bearing 5 near the clutch input gear 2 is set as a second bearing, and the planar thrust bearing 5 near the clutch output gear 1 is set as a first bearing. The moving coil of the first bearing is sleeved on the connecting shaft 9 in a co-rotating manner, and preferably, the first bearing is in interference fit with the connecting shaft 9. The moving coil of the second bearing is sleeved on the connecting shaft 9 in a co-rotating manner, and the second bearing can move along the length direction of the connecting shaft 9, namely, the second bearing and the connecting shaft 9 are in clearance fit.

The pressure spring 6 is sleeved on the connecting shaft 9 and positioned between the two plane thrust bearings 5, and the pressure spring 6 is in a compressed state.

The connecting sleeve 11 is cylindrical, the connecting sleeve 11 is sleeved outside the connecting shaft 9, and surrounds the occlusion B part, the occlusion A part and the pressure spring 6, so that the protecting effect on the occlusion B part, the occlusion A part and the pressure spring is achieved, and external sundries are prevented from entering. Preferably, two ends of the connecting sleeve 11 are respectively connected with the static rings of the two plane thrust bearings 5, namely, the connecting sleeve 11 is sleeved outside the two plane thrust bearings 5. To accommodate and allow movement of the second bearing, the coupling sleeve 11 and the second bearing are in a clearance fit such that the coupling sleeve 11 is maintained stationary.

The bite a includes a roller seat 10 and a plurality of clutch rollers 8. The roller seat 10 is fixedly connected to one end of the clutch input shaft 4, which is close to the clutch output gear 1, a plurality of roller grooves are fixedly formed in one end face of the roller seat 10, which is close to the clutch output gear 1, a plurality of clutch rollers 8 are respectively arranged in the plurality of roller grooves, the clutch rollers 8 are cylindrical, the plurality of clutch rollers 8 are annularly arranged in an array manner, the annular center line is parallel to the length direction of the connecting shaft 9, a gap is formed between two adjacent rollers 38', the gap is formed between the two adjacent rollers, a plurality of roller gaps are formed between the two adjacent rollers, and the number of the roller gaps is the same as that of the rollers 38'.

And the engagement B part is positioned between the engagement A part and the second bearing. The bite B includes a roller seat 12 and a plurality of clutch rollers 7. The roller seat 12 is connected to the connecting shaft 9 in a co-rotating manner, and the roller seat 12 is preferably fixedly connected to the connecting shaft 9. The roller seat 12 is provided with a plurality of through holes which are arranged in an annular array, and the annular center line is parallel to the length direction of the connecting shaft 9. The length direction of the through hole is parallel to the length direction of the connecting shaft 9. The clutch rollers 7 are respectively installed in a plurality of through holes on the roller seat 12, the clutch rollers 7 can move along the length direction of the through holes, the outer diameter of the clutch rollers 7 is larger than the length of the through holes, the clutch rollers 7 are positioned between the clutch rollers 8 and the second bearing, and one side of the clutch rollers 7 is contacted with the clutch rollers 8, and the other side is contacted with the second bearing. The number of the clutch rollers 7 is the same as the number of the clutch rollers 8, the outer diameter of the clutch rollers 7 is not larger than the interval size between two adjacent clutch rollers 8, when the roller seat 10 and the roller seat 12 are aligned and the clutch rollers 7 face the clutch rollers 8, the clutch rollers 7 can be respectively inserted into the roller intervals, the depth of the roller intervals is smaller than the outer diameter of the clutch rollers 7, namely, only one part of each clutch roller 7 is positioned in the roller interval, and the other part is positioned in the through hole on the roller seat 12, so that the engagement of the clutch rollers 7 and the clutch rollers 8 can be formed, and the driving can be transmitted.

Based on the structure, the working principle of the utility model is as follows: the plurality of clutch rollers 7 are respectively pressed in the plurality of roller spaces under the pressure of the compression spring 6, and a state in which the plurality of clutch rollers 7 and the plurality of clutch rollers 8 are alternately engaged is formed. The manual operation drive is transmitted to the clutch input gear 2 or the clutch input shaft 4, the clutch input gear 2 and the clutch input shaft 4 synchronously rotate and drive the roller seat 10 and the clutch rollers 8 to rotate, the clutch rollers 8 drive the clutch rollers 7 meshed with the clutch rollers to rotate, the clutch rollers 7 drive the roller seat 12 to rotate, the roller seat 12 drives the connecting shaft 9 to synchronously rotate, and the connecting shaft 9 drives the clutch output gear 1 to synchronously rotate. The connecting shaft 9 or the clutch output gear 1 is connected and transmitted to the transmission output. In this way, a transmission of the drive of the transmission input to the transmission output is achieved.

And a limiting block is arranged on one side of the transmission output part, when the transmission output part runs in place and contacts with the limiting block, the limiting block prevents the transmission output part from continuing to rotate, and the resistance is finally transmitted to the clutch output gear 1, the connecting shaft 9 and the roller seat 12 to prevent the transmission output part from rotating due to the transmission of the resistance. At this time, if the operator continues to operate, the clutch input gear 2 will continue to rotate, the roller seat 10 and the plurality of clutch rollers 8 will continue to rotate, and the plurality of clutch rollers 7 will not rotate due to the resistance force, at this time, the clutch rollers 8 will generate resistance force to the clutch rollers 7, push the clutch rollers 7 out of the roller space, so that the plurality of clutch rollers 7 and the plurality of clutch rollers 8 are disengaged, the clutch rollers 7 do not hinder the rotation of the clutch rollers 8, i.e. the clutch rollers 7 receive the thrust force of the clutch rollers 8, the thrust force is directed from the roller seat 10 toward the clutch output gear 1, the clutch rollers 7 transmit the thrust force to the planar thrust bearing 5 contacting with the clutch rollers, i.e. the second bearing, the planar thrust bearing 5 pushes the compression spring 6 contacting with the clutch rollers, and the compression spring 6 is further compressed. That is, at this time, the clutch input gear 2 corresponds to idle rotation, and the rotation thereof is not transmitted to the clutch output gear 1 and the connecting shaft 9. When the roller seat 10 rotates until the clutch rollers 7 are aligned with the roller spaces, the compression spring 6 pushes the second bearing under the pressure of the compression spring 6, the second bearing pushes the clutch rollers 7 to enter the roller spaces, and the clutch rollers 7 are pushed out of the roller spaces again along with the rotation of the roller seat 10, so that the process is repeated.

Finally, what is necessary here is: the above embodiments are only for further detailed description of the technical solutions of the present utility model, and should not be construed as limiting the scope of the present utility model, and some insubstantial modifications and adjustments made by those skilled in the art from the above description of the present utility model are all within the scope of the present utility model.

Claims

1. The utility model provides a clutch mechanism, a serial communication port, including clutch input shaft (4), connecting axle (9), pressure spring (6), interlock A portion and interlock B portion, interlock A portion is connected in clutch input shaft (4) be close to the one end of connecting axle (9) with rotating, the one end that is close to interlock A portion of connecting axle (9) has cup jointed interlock B portion with rotating altogether, interlock A portion and interlock B portion can interlock and transmit the drive or break away from interlock and cut off the transmission of drive, interlock B portion is along connecting axle (9) length direction movably setting, pressure spring (6) for providing pressure for interlock A portion are located connecting axle (9).

2. The clutch mechanism as set forth in claim 1, wherein: the meshing A part comprises a roller seat (10) and a plurality of clutch rollers (8), the roller seat (10) is fixedly connected to one end, close to a connecting shaft (9), of a clutch input shaft (4), the clutch rollers (8) are fixedly arranged on the end face, close to the connecting shaft (9), of the roller seat (10), the clutch rollers (8) are annularly arranged, a gap is reserved between every two adjacent clutch rollers (8), the roller seat B part comprises a roller seat (12) and a plurality of clutch rollers (7), the roller seat (12) is sleeved on one end, close to the meshing A part, of the connecting shaft (9) in a co-rotating mode, the clutch rollers (7) are annularly arranged on the roller seat (12), one side of each clutch roller (7) is in contact with the clutch rollers (8), the other side of each clutch roller (7) can move along the length direction of the connecting shaft (9) under the joint force of the pressure spring (6) and the meshing A part, the clutch rollers (7) are not completely inserted into the roller gaps respectively, or the clutch rollers (7) are completely separated from the clutch rollers (7) completely.

3. The clutch mechanism according to claim 2, wherein: be equipped with a plurality of through-holes on roller seat (12), a plurality of through-hole annular array arranges, annular central line is on a parallel with connecting axle (9) length direction, the length direction of through-hole is on a parallel with connecting axle (9) length direction, and a plurality of clutch rollers (7) are installed respectively in a plurality of through-holes on roller seat (12), and clutch rollers (7) can be followed the length direction of through-hole removes, and the external diameter of clutch rollers (7) is greater than the length of through-hole, clutch rollers (7) one side contact clutch rollers (8), opposite side bear the pressure of pressure spring (6).

4. The clutch mechanism according to claim 2, wherein: the clutch roller (8) is a cylinder.

5. A clutch mechanism according to claim 2 or 3, characterised in that: the clutch mechanism further comprises two plane thrust bearings (5), the two plane thrust bearings (5) are sleeved on the connecting shaft (9) at intervals, one side of one plane thrust bearing (5) is contacted with one ends of a plurality of clutch rollers (7) and the other side is contacted with a pressure spring (6), and the other end of the pressure spring (6) is contacted with the other plane thrust bearing (5).

6. A clutch mechanism according to claim 2 or 3, characterised in that: the roller seat (12) is fixedly arranged on the connecting shaft (9).

7. The clutch mechanism as set forth in claim 5, wherein: the plane thrust bearing (5) contacting with the clutch rollers (7) is a second bearing, the other plane thrust bearing (5) is a first bearing, the first bearing is in interference fit with the connecting shaft (9), and the second bearing is in clearance fit with the connecting shaft (9).

8. The clutch mechanism as set forth in claim 7, wherein: the clutch mechanism further comprises a connecting sleeve (11), the connecting sleeve (11) is cylindrical, and the connecting sleeve (11) is sleeved outside the connecting shaft (9) and surrounds the occlusion B part, the occlusion A part and the pressure spring (6).

9. The clutch mechanism as set forth in claim 1, wherein: the clutch mechanism further comprises a clutch input gear (2) and a clutch output gear (1), wherein the clutch input gear (2) is mounted on the clutch input shaft (4) in a co-rotating mode, and the clutch output gear (1) is mounted on the connecting shaft (9) in a co-rotating mode.