CN221097253U - Clutch transmission mechanism - Google Patents
Clutch transmission mechanism Download PDFInfo
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- CN221097253U CN221097253U CN202323313714.1U CN202323313714U CN221097253U CN 221097253 U CN221097253 U CN 221097253U CN 202323313714 U CN202323313714 U CN 202323313714U CN 221097253 U CN221097253 U CN 221097253U
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- clutch
- clutch part
- transmission
- limiting
- transmission gear
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 122
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 210000003746 feather Anatomy 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model discloses a clutch transmission mechanism which comprises a transmission shaft, wherein a transmission gear is rotationally connected to the transmission shaft, a first clutch part is arranged on the transmission gear, a second clutch part which is in clutch fit with the first clutch part through a pawl is connected to a sliding key on the transmission shaft, the first clutch part is coaxially arranged with the transmission gear, and the first clutch part is elastically connected with the transmission gear along the rotation direction. The clutch transmission mechanism solves the problem that in the prior art, the clutch transmission mechanism is easy to generate a tooth striking phenomenon, so that transition wear or damage is caused.
Description
Technical Field
The utility model relates to a clutch of agricultural machinery, in particular to a clutch transmission mechanism.
Background
Agricultural machinery refers to various machines used in the crop planting and animal husbandry processes, as well as in the preliminary processing and handling of agricultural and animal products. The clutch is a clutch transmission mechanism commonly used in mechanical transmission, and can be used for separating or connecting a transmission system at any time so as to cut off or transmit power input by an engine.
The existing agricultural machinery clutch transmission generally adopts a friction clutch structure and a jaw clutch structure, and for small agricultural machinery, the friction clutch structure has the slipping condition under high load, so that the user experience is poor; because the jaw clutch mechanism has better stability under the condition of high load, the jaw clutch mechanism is adopted in a plurality of cases.
The Chinese patent document CN219587993U discloses an agricultural mechanical clutch device, which comprises a transmission box body, wherein a transmission mechanism and a clutch mechanism are arranged in the transmission box body, the transmission mechanism comprises a transmission shaft and a transmission gear, and the clutch mechanism is positioned on the transmission mechanism; the transmission gear is sleeved on the transmission shaft in a hollow mode; the clutch mechanism comprises a first clutch part and a second clutch part, wherein the first clutch part is axially arranged on the transmission gear, the second clutch part is combined with or separated from the first clutch part, the second clutch part slides along the transmission shaft and drives the transmission shaft to rotate, the first clutch part is combined with the second clutch part after the second clutch part slides along the transmission shaft, and the first clutch part drives the second clutch part to rotate; the first clutch portion is equipped with first slot part and first protruding portion towards the one end of second clutch portion, the second clutch portion is equipped with second slot part and second protruding portion towards the one end of first clutch portion, when first clutch portion with the second clutch portion combines, the second protruding portion inserts first slot part, the first protruding portion inserts the second slot part.
The above prior art solution is a typical jaw clutch mechanism, which has a simple structure and can adapt to the high load condition. However, in actual use, when the clutch is switched in the high-speed mode, the first clutch portion and the second clutch portion are engaged to form teeth, and the problems of excessive wear or damage occur after long-term use.
Disclosure of utility model
The utility model aims to provide a clutch transmission mechanism so as to solve the problem that the clutch transmission mechanism in the prior art is easy to generate tooth striking phenomenon to cause transitional wear or damage.
In order to achieve the above purpose, the basic scheme of the utility model provides a clutch transmission mechanism, which comprises a transmission shaft, wherein a transmission gear is rotationally connected to the transmission shaft, a first clutch part is arranged on the transmission gear, a second clutch part which is in clutch fit with the first clutch part through a pawl is connected to a sliding key on the transmission shaft, the first clutch part is coaxially arranged with the transmission gear, and the first clutch part is elastically connected with the transmission gear along the rotation direction.
The beneficial effect of this basic scheme lies in: when the second clutch part slides on the transmission shaft to be combined with the first clutch part through the pawl, the second clutch part transmits the rotation power of the transmission shaft to the first clutch part, then the first clutch part transmits the rotation power to the transmission gear, and when the second clutch part is combined with the first clutch part, the first clutch part is elastically connected with the transmission gear, so that the combination impact suffered by the first clutch part, the second clutch part and the transmission gear is greatly reduced, the occurrence of the phenomenon of combining impact striking teeth is avoided, and the phenomenon of transitional abrasion or damage of the first clutch part, the second clutch part and the transmission gear is avoided.
Preferably, the first clutch part is provided with a protruding part, the transmission gear is provided with a groove for the protruding part to slide, and an elastic piece for transmitting power between the protruding part and the transmission gear is arranged in the groove. By adopting the arrangement, the elastic connection between the first clutch part and the transmission gear is realized through the cooperation of the protruding part, the groove and the elastic piece, so that the power transmission reliability between the first clutch part and the transmission gear is improved.
Preferably, the end portion of the transmission gear is provided with a containing groove for containing the first clutch portion, the groove is radially arranged along the outer side of the containing groove, and the protruding portion is radially arranged along the outer side of the first clutch portion. By adopting the arrangement, the space occupied by the first clutch part is at least partially overlapped with the space occupied by the transmission gear, so that the elastic connection between the first clutch part and the transmission gear can be realized under the condition that the moving space of the original second clutch part is not changed, and the replacement of the original clutch transmission mechanism can be realized on the basis of the existing design conveniently.
Preferably, the elastic member is a compression spring. By adopting the arrangement, the power is transmitted through the compression force of the spring, which is beneficial to facilitating the installation and arrangement of the elastic piece, thereby simplifying the structure.
Preferably, a limiting component for limiting the relative rotation between the first clutch part and the transmission gear to a limit distance smaller than the maximum allowable deformation amount of the elastic piece is arranged between the transmission gear and the first clutch part. By adopting the arrangement, the situation that the elastic piece is deformed excessively to fail or be damaged is avoided through the arrangement of the limiting assembly, and the service life of the clutch transmission mechanism is prolonged.
Preferably, the limiting assembly comprises a limiting groove and a limiting block sliding along the limiting groove, and the limiting distance of the limiting block sliding along the limiting groove is smaller than the maximum allowable deformation amount of the elastic piece. By adopting the arrangement, the structure of the limiting assembly is facilitated to be simplified, and the processing and the arrangement are convenient.
Preferably, the limiting groove is arranged on the outer side of the accommodating groove in a radial mode, and the limiting block is arranged on the outer side of the first clutch part in a radial mode. By adopting the arrangement, the space occupied by the limiting component is reduced, so that the processing and arrangement are convenient.
Preferably, a rolling element for supporting the second clutch part to slide along the axial direction is arranged on the transmission shaft. By adopting the arrangement, the sliding resistance between the second clutch part and the transmission shaft is reduced, so that the operation is more labor-saving.
Preferably, a first sliding groove is axially formed in the transmission shaft, a second sliding groove corresponding to the first sliding groove is formed in the second clutch portion, and the rolling piece is located between the first sliding groove and the second sliding groove. By adopting the arrangement, the rolling element can reduce the sliding resistance between the second clutch part and the transmission shaft and transmit the power between the transmission shaft and the second clutch part, thereby improving the reliability between the second clutch part and the transmission shaft.
The utility model has the following beneficial effects:
1. By adopting the clutch transmission mechanism, when the first clutch part and the second clutch part are combined, the phenomenon of tooth punching is effectively avoided, and further the problem of transitional wear or damage of the clutch transmission mechanism is avoided.
2. The clutch transmission mechanism is compact in structure, and the elastic connection between the first clutch part and the transmission gear is realized under the condition that the moving space of the original second clutch part is not changed, so that the original clutch transmission mechanism is conveniently replaced on the basis of the existing design.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a clutch transmission mechanism according to the present utility model;
Fig. 2 is an axial view of a clutch transmission according to the present utility model along the transmission shaft of fig. 1.
Detailed Description
Definition elastic connection refers to a connection form having elasticity. The limiting distance refers to the maximum distance moved. The maximum allowable deformation amount of the elastic member refers to a critical deformation amount when the elastic member fails or breaks, and when the elastic member exceeds the deformation amount, the elastic member fails or breaks and cannot be recovered.
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the clutch comprises a second clutch part 1, a pawl 2, a rolling piece 3, a first chute 4, a second chute 5, a limit groove 6, a limit block 7, a boss 8, an elastic piece 9, a transmission shaft 10 and a transmission gear 11.
An example is substantially as shown in figures 1 and 2: the clutch transmission mechanism comprises a transmission shaft 10, a transmission gear 11 is rotationally connected to the transmission shaft 10, a first clutch part is arranged on the transmission gear 11, a second clutch part 1 which is in clutch fit with the first clutch part through a pawl 2 is connected to the transmission shaft 10 through a sliding key, and the first clutch part and the second clutch part 1 are switched between a combination state and a separation state, so that power transmission and power cutting-off between the rotation shaft and the transmission gear 11 are realized. The pawl 2 is integrally formed at one end of the first clutch part facing the second clutch part 1 and one end of the second clutch part 1 facing the first clutch part, and power transmission and disconnection are realized by combining and separating the pawl 2 on the first clutch part with the pawl 2 on the second clutch part 1.
A plurality of first sliding grooves 4 are axially arranged on the transmission shaft 10, a second sliding groove 5 corresponding to the first sliding groove 4 is arranged on the second clutch part 1, and rolling elements 3 are arranged between the first sliding groove 4 and the second sliding groove 5, so that the resistance of the second clutch part 1 when sliding along the transmission shaft 10 can be reduced, and in the embodiment, the rolling elements 3 are preferably spherical balls.
The first clutch portion is coaxially disposed with the transmission gear 11, and the first clutch portion is elastically connected with the transmission gear 11 in the rotation direction. In this embodiment, the first clutch portion is provided with a protruding portion 8, the transmission gear 11 is provided with a groove for the protruding portion 8 to slide, and an elastic member 9 for transmitting power between the protruding portion 8 and the transmission gear 11 is provided in the groove. In this embodiment, the elastic member 9 is preferably a compression spring. The end of the transmission gear 11 is provided with an accommodation groove for accommodating the first clutch portion, the groove is radially arranged along the outer side of the accommodation groove, and the boss 8 is radially arranged along the outer side of the first clutch portion. In this embodiment, the grooves are provided with four grooves and are arranged in a central symmetry manner around the rotation axis of the transmission gear 11, and correspondingly, the protrusions 8 are correspondingly provided with four grooves and are arranged in a central symmetry manner around the rotation axis of the first clutch portion.
A limiting component for limiting the relative rotation between the first clutch part and the transmission gear 11 to a limit distance smaller than the maximum allowable deformation amount of the elastic piece 9 is arranged between the transmission gear 11 and the first clutch part. In this embodiment, the limiting component includes a limiting slot 6 and a limiting block 7 sliding along the limiting slot 6, where the limiting distance of the limiting block 7 sliding along the limiting slot 6 is smaller than the maximum allowable deformation of the elastic member 9. Specifically, the limiting groove 6 is disposed on the transmission gear 11 and is disposed radially outside the accommodating groove, and the limiting block 7 is disposed on the first clutch portion and is disposed radially outside the first clutch portion. In this embodiment, two limiting grooves 6 are provided, and the two limiting grooves 6 are arranged in a central symmetry manner around the rotation axis of the transmission gear 11. For convenience of processing, the limit grooves 6 and the grooves may be provided in the same shape, and the two limit grooves 6 and the four grooves are uniformly distributed along the circumferential direction of the accommodating groove.
The specific implementation process is as follows: when the second clutch part 1 is in a separated state from the first clutch part, the transmission shaft 10 and the transmission gear 11 are in a power cut-off state. At this time, the compression spring is in an extended state. When power transmission between the transmission shaft 10 and the transmission gear 11 is required, the second clutch part 1 slides along the transmission shaft 10 towards the first clutch part, so that the pawl 2 on the second clutch part 1 is combined with the pawl 2 on the first clutch part. In the process of combining the second clutch part 1 with the first clutch part, the first clutch part compresses the compression spring through the transmission gear 11 to reduce the impact effect received in the combining process, so that the occurrence of a tooth forming phenomenon is avoided, and the phenomenon that the first clutch part, the second clutch part 1 and the transmission gear 11 are worn or damaged in a transitional way is avoided.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (9)
1. The utility model provides a separation and reunion drive mechanism, includes the transmission shaft, it is connected with drive gear to rotate on the transmission shaft, be provided with first separation and reunion portion on the drive gear, the last feather key of transmission shaft is connected with and carries out separation and reunion complex second separation and reunion portion, its characterized in that with first separation and reunion portion through the pawl: the first clutch part is coaxially arranged with the transmission gear, and the first clutch part is elastically connected with the transmission gear along the rotation direction.
2. A clutch transmission according to claim 1, wherein: the first clutch part is provided with a protruding part, the transmission gear is provided with a groove for the protruding part to slide, and an elastic piece for transmitting power between the protruding part and the transmission gear is arranged in the groove.
3. A clutch transmission according to claim 2, wherein: the end of the transmission gear is provided with an accommodating groove for accommodating the first clutch part, the grooves are radially arranged along the outer side of the accommodating groove, and the protruding parts are radially arranged along the outer side of the first clutch part.
4. A clutch transmission according to claim 3, wherein: the elastic piece is a compression spring.
5. A clutch transmission according to claim 3 or 4, wherein: and a limiting component used for limiting the relative rotation between the first clutch part and the transmission gear to a limit distance smaller than the maximum allowable deformation amount of the elastic piece is arranged between the transmission gear and the first clutch part.
6. A clutch transmission according to claim 5, wherein: the limiting assembly comprises a limiting groove and a limiting block sliding along the limiting groove, and the limiting distance of the limiting block sliding along the limiting groove is smaller than the maximum allowable deformation of the elastic piece.
7. A clutch transmission according to claim 6, wherein: the limiting groove is arranged on the outer side of the accommodating groove in a radial mode, and the limiting block is arranged on the outer side of the first clutch part in a radial mode.
8. A clutch transmission according to claim 7, wherein: the transmission shaft is provided with a rolling piece which supports the second clutch part to axially slide.
9. A clutch transmission according to claim 8, wherein: the transmission shaft is axially provided with a first chute, the second clutch part is provided with a second chute corresponding to the first chute, and the rolling element is positioned between the first chute and the second chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323313714.1U CN221097253U (en) | 2023-12-06 | 2023-12-06 | Clutch transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323313714.1U CN221097253U (en) | 2023-12-06 | 2023-12-06 | Clutch transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097253U true CN221097253U (en) | 2024-06-07 |
Family
ID=91305115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323313714.1U Active CN221097253U (en) | 2023-12-06 | 2023-12-06 | Clutch transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097253U (en) |
-
2023
- 2023-12-06 CN CN202323313714.1U patent/CN221097253U/en active Active
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| GR01 | Patent grant |