CN217519092U - Clutch for vertical shaft mini-tiller - Google Patents
Clutch for vertical shaft mini-tiller Download PDFInfo
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- CN217519092U CN217519092U CN202220865790.XU CN202220865790U CN217519092U CN 217519092 U CN217519092 U CN 217519092U CN 202220865790 U CN202220865790 U CN 202220865790U CN 217519092 U CN217519092 U CN 217519092U
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- friction
- clutch
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- input shaft
- boss
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Abstract
The utility model relates to the technical field of clutches, in particular to a clutch for a vertical shaft mini-tiller, one end of the clutch is connected with an input shaft of power, the other end of the clutch is connected with an output shaft, the clutch comprises a friction mechanism and an intermediate disc, the friction mechanism and the intermediate disc are sleeved outside the input shaft and the output shaft, a first boss is arranged on the input shaft, and the first boss is positioned at the upper part of the friction mechanism; the middle disc is connected with the input shaft through a spline, the friction mechanism is connected with a shifting fork mechanism, and the shifting fork mechanism is used for driving the friction mechanism to move up and down, so that the clutch is locked and separated. The utility model discloses a clutch is owing to be acted on the input shaft, directly acts on the friction mechanism of clutch on the input shaft when clutch separation and reunion is used, need not to lock the ring gear and can realize the moment of torsion transmission, and this kind of mode has directly walked around the ring gear, consequently can not be because the too big problem that leads to the output torque to reduce of ring gear moment of torsion.
Description
Technical Field
The utility model relates to a clutch technical field, concretely relates to a clutch that is used for quick-witted is ploughed a little to vertical axis.
Background
The clutch is an indispensable braking component in the agricultural machinery industry. The clutch is controlled to realize the output and stop of the whole machine.
At present, in the agricultural machinery industry, particularly in the application of a vertical shaft mini-tiller, a planetary gear structure is generally adopted in the market for speed reduction operation, an input shaft in the planetary gear structure is a sun gear, a planetary gear is arranged outside the sun gear and is provided with a gear ring, and the gear ring is fixed and variable during use, so that the planetary gear can rotate to output torque. At present, the mini-tiller is braked by generally adopting a mode of locking a planetary gear ring. When the clutch locks the gear ring, the transmission of the planet gear ring is large, so that the torque on the gear ring is large, the gear is not well locked, the gear ring slips, the torque output by a cutter of the mini-tiller connected with the planet gear is reduced, and the tillage is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the braking that goes on to the ring gear to present clutch leads to the big ring gear of moment of torsion of ring gear when clutch separation and reunion uses can not lock completely, appears the ring gear easily and skids the problem that makes the moment of torsion of output shaft output not enough, provides a clutch that is used for quick-witted is ploughed a little to the vertical axis.
In order to achieve the purpose of the invention, the utility model provides the following technical scheme:
a clutch for a vertical shaft mini-tiller is characterized in that one end of the clutch is connected with an input shaft of power, the other end of the clutch is connected with an output shaft, the clutch comprises a friction mechanism and an intermediate disc, the friction mechanism and the intermediate disc are sleeved outside the input shaft and the output shaft, a first boss is arranged on the input shaft, and the first boss is positioned at the upper part of the friction mechanism; the middle disc is connected with the input shaft through a spline, the friction mechanism is connected with a shifting fork mechanism, and the shifting fork mechanism is used for driving the friction mechanism to move up and down, so that the clutch is locked and separated.
Preferably, the friction mechanism comprises a first friction disc and a second friction disc, connecting holes are formed in the first friction disc and the second friction disc respectively, the connecting column penetrates through the connecting holes to connect the first friction disc and the second friction disc, and the shifting fork mechanism is connected with the second friction disc. The friction mechanism enables the friction force between the first friction disc and the middle disc to be larger when the clutch is locked through the arrangement of the first friction disc and the second friction disc.
Preferably, a second boss is arranged in the first friction disc, a first thrust ball bearing is installed in the second boss, a second thrust ball bearing is arranged on the outer wall of the second friction disc, and the shifting fork mechanism is connected with the second thrust ball bearing. When the clutch is locked, the first thrust ball bearing is in contact with the first boss, and the friction mechanism is limited to continue moving upwards. The thrust ball bearing can bear great axial force, the second thrust ball bearing mainly uses the shift fork to promote and can produce great axial force, and first thrust ball bearing bears the axial force equally, can alleviate the impact force to the input shaft like this.
Preferably, the intermediate plate includes a friction portion and a connecting portion, the connecting portion and the friction portion are L-shaped, and the connecting portion is located on an inner wall of the first friction plate. The top of connecting portion contacts with first thrust ball bearing, can promote first thrust ball bearing upward movement.
Preferably, a return spring is sleeved on the connecting column and is located between the first friction disc and the second friction disc. The return spring is compressed after the clutch is locked, and when the clutch is separated, the second friction disc moves downwards under the action of self gravity and the elastic force of the return spring, so that the friction mechanism is separated from the middle disc quickly.
Preferably, the input shaft is provided with a first clamp spring, and the first clamp spring is located on the lower portion of the middle plate. When the clutch is in a separation state, the intermediate disc can freely fall down on the input shaft due to the gravity, and the first clamp spring on the input shaft positions the intermediate disc and prevents the intermediate disc from continuously falling down. When the clutch is locked, the first clamp spring and the second clamp spring do not play a positioning role.
Preferably, the bottom of the friction mechanism is provided with a second snap spring, and the friction mechanism is limited through the second snap spring.
Compared with the prior art, the beneficial effects of the utility model are that: the clutch is arranged outside the input shaft, the first boss is arranged on the input shaft, the middle plate connected with the driving shaft is arranged in the middle of the friction mechanism, the shifting fork enables the friction mechanism to move upwards to reach the first boss, the friction mechanism is attached to the middle plate through friction force, the output shaft is connected with the friction mechanism, and therefore the output shaft outputs torque; when the clutch is disengaged, the friction mechanism moves downward under the action of gravity, the intermediate disc still rotates together with the input shaft, but the friction mechanism is disengaged from the intermediate disc, and the output shaft informs torque output. The utility model discloses a clutch is owing to be acted on the input shaft, directly acts on the friction mechanism of clutch on the input shaft when clutch separation and reunion is used, need not to lock the ring gear and can realize the moment of torsion transmission, and the ring gear has directly been walked around to this kind of mode, consequently can not be because the too big problem that leads to the output torque to reduce of ring gear moment of torsion.
Description of the drawings:
fig. 1 is a schematic structural view of a clutch for a vertical axis mini-tiller provided by the present invention;
FIG. 2 is a schematic structural view of a portion of FIG. 1;
FIG. 3 is a schematic illustration of a first friction disk configuration;
fig. 4 is a schematic structural view of the intermediate tray.
The mark in the figure is: 1-an input shaft, 2-a first friction disc, 3-a hexagon nut, 4-a connecting column, 5-a return spring, 6-a second friction disc, 7-a second thrust ball bearing, 8-an output shaft, 9-a second snap spring, 10-a first snap spring, 11-an intermediate disc, 12-a first thrust ball bearing, 13-a first boss, 14-a shifting fork mechanism, 15-a second boss, 16-a friction part and 17-a connecting part.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected" and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection through an intermediate medium, and those skilled in the art may understand the specific meanings of the above terms according to specific situations.
As shown in figure 1, the utility model discloses a clutch for quick-witted is ploughed a little to vertical axis, the one end and the input shaft 1 of power of clutch are connected, and the other end is connected with output shaft 8.
The clutch includes friction mechanism and intermediate disc 11, friction mechanism the intermediate disc 11 cover is established outside input shaft 1 and the output shaft 8, intermediate disc 11 with input shaft 1 passes through splined connection. The upper surface and the lower surface of the middle disc are both provided with friction materials matched with the friction mechanism. The input shaft is provided with a first clamp spring 10, the first clamp spring 10 is located on the lower portion of the middle disc 11, the middle disc surface 11 is located through the first clamp spring 10, and the middle disc 11 is prevented from being separated from the input shaft 1.
The input shaft 1 is provided with a first boss 13, and the first boss 13 is positioned at the upper part of the friction mechanism. The friction mechanism is connected with a shifting fork 14 mechanism, and the shifting fork 14 mechanism is used for driving the friction mechanism to move up and down, so that the clutch is locked and separated. The first boss 13 is used for limiting the friction mechanism upwards, the friction mechanism stops moving after moving to be in contact with the first boss 13, the first boss 13 applies downward force to the friction mechanism, and the shifting fork 14 applies upward force to the friction mechanism, so that the friction mechanism and the intermediate disc 11 are in friction contact and rotate.
The friction mechanism comprises a first friction disc 2 and a second friction disc 6, connecting holes are formed in the first friction disc 2 and the second friction disc 6, the connecting column 4 penetrates through the connecting holes to connect the first friction disc 2 and the second friction disc 6, the upper portion of the connecting column 4 is locked through a hexagonal nut 3, and the second friction disc 6 is connected with an output shaft 8 through a spline. The second friction disk 6, when moving upwards, carries the intermediate disk 11 upwards, which in turn carries the first friction disk 2 upwards. The connecting rod 4 is sleeved with a return spring 5, the return spring 5 is located between the first friction disc 2 and the second friction disc 6, and the return spring 5 enables the first friction disc 2 and the second friction disc 6 to be rapidly reset and separated from the middle disc 11 when the clutch is separated.
The friction plate is characterized in that a second boss 15 is arranged in the first friction plate 2, a first thrust ball bearing 12 is mounted in the second boss 15, the cross section of the second friction plate 6 is L-shaped, a second thrust ball bearing 7 is arranged on the outer wall of the second friction plate 6, and the shifting fork 14 mechanism is connected with the second thrust ball bearing 7. When the clutch is locked, the lower section of the first thrust ball bearing 12 and the lower section of the second thrust ball bearing 7 are not rotated. The bottom of friction mechanism is equipped with second jump ring 9, can carry out spacingly to the downstream of friction mechanism through second jump ring 9.
The intermediate plate 11 comprises a friction portion 16 and a connecting portion 17, the connecting portion 17 and the friction portion 16 are L-shaped, and the connecting portion 17 is located on the inner wall of the first friction plate 2. The inside of the connecting portion 17 is connected to the input shaft 1 by a spline, the top of the connecting portion 17 contacts the first thrust ball bearing 12, and the connecting portion 17 pushes the first thrust ball bearing 12 upward to contact the first boss 13 when the clutch is locked.
The working process is as follows: when the clutch needs to be locked for use, the second thrust ball bearing 7 moves upwards through the shifting fork 14 mechanism, the second thrust ball bearing 7 drives the second friction disc 6 to move upwards, the second friction disc 6 drives the middle disc 11 to move upwards, the middle disc 11 drives the first friction disc 2 to move upwards, the first thrust ball bearing 12 is contacted with the first boss 13 of the input shaft 1 after the first friction disc 2 and the middle disc 11 move upwards, the first boss 13 limits the friction mechanism to continue moving upwards, the first friction disc 2 and the second friction disc 6 are in friction contact with the middle disc 11, the middle disc 11 drives the first friction disc 2 and the second friction disc 6 to rotate, and the output shaft 8 is connected with the second friction disc 6 through the spline, so that the output shaft 8 is driven to rotate to realize torque output. The second friction disk 6 moves upwards on the output shaft 8, and after the second friction disk 6 is locked with the middle disk 11, the middle disk 11 drives the first friction disk 2 and the second friction disk 6 to rotate together.
When the clutch is separated, the shifting fork 14 is released, the second thrust ball bearing 7 is reset under the action of gravity, the second friction disc 6 is also reset under the action of self gravity and the return spring 5, the first friction disc 2 and the second friction disc 6 are separated from the intermediate disc 11 by the second return spring 5, at the moment, the intermediate disc 11 still rotates along with the rotation of the input shaft 1, but the second friction disc 6 does not rotate along with the intermediate disc 11 any more, and the output shaft 8 also stops outputting.
The utility model discloses a directly brake the output torque to input shaft 1 and output shaft 8, compare in the current mode that makes output shaft output torque to ring gear locking, this application has avoided because the ring gear moment of torsion is big, and the clutch can not in time brake the problem that output shaft moment of torsion skidded for a short time appears ring gear locking. The utility model discloses an after the clutch separation, the separation between second friction disk 6 and the intermediate disk 11 can not drive output shaft 8 and rotate. Compared with the traditional structure, the structure can greatly reduce the load of the clutch, reduce the size of the clutch and has the characteristics of simple processing and manufacturing, low cost and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (7)
1. The clutch for the vertical shaft mini-tiller is characterized in that one end of the clutch is connected with a power input shaft (1), the other end of the clutch is connected with an output shaft (8), the clutch comprises a friction mechanism and an intermediate disc (11), the friction mechanism and the intermediate disc (11) are sleeved outside the input shaft (1) and the output shaft (8), a first boss (13) is arranged on the input shaft (1), and the first boss (13) is located at the upper part of the friction mechanism; the middle disc (11) is connected with the input shaft (1) through a spline, a shifting fork (14) mechanism is connected onto the friction mechanism, and the shifting fork (14) mechanism is used for driving the friction mechanism to move up and down, so that the clutch is locked and separated.
2. The clutch for the vertical shaft mini-tiller according to claim 1, wherein the friction mechanism comprises a first friction disc (2) and a second friction disc (6), connecting holes are formed in the first friction disc (2) and the second friction disc (6), a connecting rod (4) penetrates through the connecting holes to connect the first friction disc (2) and the second friction disc (6), and the shifting fork (14) mechanism is connected with the second friction disc (6).
3. The clutch for the vertical shaft mini-tiller according to claim 2, characterized in that a second boss (15) is arranged in the first friction disc (2), a first thrust ball bearing (12) is arranged in the second boss (15), a second thrust ball bearing (7) is arranged on the outer wall of the second friction disc (6), and the shifting fork (14) mechanism is connected with the second thrust ball bearing (7).
4. The clutch for a vertical axis mini-tiller according to claim 2, wherein the intermediate plate (11) comprises a friction portion (16) and a connection portion (17), the connection portion (17) and the friction portion (16) are L-shaped, and the connection portion (17) is located on an inner wall of the first friction disc (2).
5. The clutch for the vertical shaft mini-tiller according to claim 2, wherein a return spring (5) is sleeved on the connecting column (4), and the return spring (5) is located between the first friction disk (2) and the second friction disk (6).
6. The clutch for the vertical shaft mini-tiller according to claim 1, wherein a first clamp spring (10) is arranged on the input shaft, and the first clamp spring (10) is located at the lower part of the middle plate (11).
7. The clutch for the vertical shaft mini-tiller according to claim 1, characterized in that a second clamp spring (9) is arranged at the bottom of the friction mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865790.XU CN217519092U (en) | 2022-04-14 | 2022-04-14 | Clutch for vertical shaft mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865790.XU CN217519092U (en) | 2022-04-14 | 2022-04-14 | Clutch for vertical shaft mini-tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519092U true CN217519092U (en) | 2022-09-30 |
Family
ID=83372594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220865790.XU Active CN217519092U (en) | 2022-04-14 | 2022-04-14 | Clutch for vertical shaft mini-tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519092U (en) |
-
2022
- 2022-04-14 CN CN202220865790.XU patent/CN217519092U/en active Active
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