CN210196303U - Lubrication flow distribution structure of wet clutch of power gear shifting tractor - Google Patents
Lubrication flow distribution structure of wet clutch of power gear shifting tractor Download PDFInfo
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- CN210196303U CN210196303U CN201920579121.4U CN201920579121U CN210196303U CN 210196303 U CN210196303 U CN 210196303U CN 201920579121 U CN201920579121 U CN 201920579121U CN 210196303 U CN210196303 U CN 210196303U
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- clutch
- driven shaft
- wet clutch
- flow distribution
- wet
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Abstract
Lubricated flow distribution structure of power tractor wet clutch of shifting includes: the device comprises a driving gear, a wet clutch assembly, a driven shaft and a flow distribution disc; the driving gear is arranged on the driven shaft, the left end of the driving gear is in contact with the gasket, the right end of the driving gear is in contact with the thrust bearing, and the right end of the thrust bearing is in contact with a clamp spring fixed on the driven shaft; a clutch driven plate in the wet clutch assembly is in splined connection with a wet clutch internal spline hub in the driven shaft, and a clutch friction plate of the wet clutch assembly is in splined connection with a wet clutch external spline hub on the driving gear; the flow distribution disc is installed on the driven shaft, the left end of the flow distribution disc is in contact with a clutch separation disc spring installed on the driven shaft, and the right end of the flow distribution disc is in contact with a clutch piston installed on the driven shaft. The lubricating flow distribution structure can provide lubricating oil with different flows under the separation and combination states of the wet clutch according to the use requirements, and can reasonably distribute the lubricating flow of the wet clutch of the power shifting and power reversing tractor.
Description
Technical Field
The utility model belongs to the tractor field relates to a wet clutch, especially relates to a power tractor wet clutch's of shifting lubrication flow distribution structure.
Background
At present, in a tractor power shifting and power reversing transmission system produced and matched in China, lubricating oil of a wet clutch is supplied with flow through a lubricating oil hole fixed on a clutch shaft, and the flow of the lubricating oil is fixed and unchanged. In the actual use process of the tractor, when the wet clutch is in the engaging process, a large amount of lubricating oil is needed to lubricate relevant parts of the wet clutch and take away heat, so that the wet clutch can play the role of the wet clutch; when the wet clutch is in a separation state, a small amount of lubricating oil is needed, but because the lubricating oil hole of the wet clutch is fixed, a large amount of lubricating oil still flows out of the lubricating oil hole in the separation state, so that a large amount of energy is consumed, the heat of a transmission system is generated, the heat balance problem of the whole transmission belt in different degrees is caused, and the efficacy of the transmission system is further influenced.
In the prior art, although some manufacturers design a regulating and distributing structure for the lubrication flow of the wet clutch, the wet clutch has more or less problems, and thus the wet clutch is not widely popularized and applied in the field of tractors. Therefore, the structure with adjustable lubrication flow of the power wet clutch is designed, the problem that the lubrication flow of the power shifting/reversing wet clutch cannot be adjusted can be effectively solved, and the lubrication flow distribution of the wet clutch can be realized by adjusting the relevant sizes of individual parts according to different functions of the wet clutch, so that the best effect is obtained.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact structure, design novelty, use safe and reliable's power tractor wet clutch's lubricated flow distribution structure of shifting.
The utility model discloses a following technical scheme realizes above-mentioned purpose: lubricated flow distribution structure of power tractor wet clutch of shifting includes: the device comprises a driving gear, a wet clutch assembly, a driven shaft and a flow distribution disc; the driving gear is installed on the driven shaft through a roller pin, the left end of the driving gear is in contact with the gasket, the right end of the driving gear is in contact with the thrust bearing, and the right end of the thrust bearing is in contact with a clamp spring fixed on the driven shaft; a clutch driven plate in the wet clutch assembly is in splined connection with a wet clutch inner spline hub a in the driven shaft, and a clutch friction plate of the wet clutch assembly is in splined connection with a wet clutch outer spline hub b on the driving gear; the flow distribution disc is installed on the driven shaft, the left end of the flow distribution disc is in contact with a clutch separation disc spring installed on the driven shaft, and the right end of the flow distribution disc is in contact with a clutch piston installed on the driven shaft.
The driving gear is fixedly connected with a wet clutch external spline hub b, a damping hole D is formed in the wet clutch external spline hub b, and the damping hole D is opposite to the corresponding clutch friction plate.
The wet clutch assembly includes: the clutch comprises a clutch check ring, a clutch pressure plate, a clutch driven plate, a clutch friction plate and a clutch piston; the clutch driven plate is in splined connection with a wet clutch inner spline hub a on the driven shaft, the clutch friction plates are in splined connection with a wet clutch outer spline hub b on the driving gear, the clutch driven plate and the clutch friction plates are alternately arranged and installed in the wet clutch inner spline hub a in the driven shaft, the clutch pressure plate is connected with the wet clutch inner spline hub a in the driven shaft through splines, the clutch check ring is installed in an inner groove on the wet clutch inner spline hub a in the driven shaft, and the clutch piston is installed in an inner cavity of the wet clutch inner spline hub a on the driven shaft.
A lubricating oil groove C is formed in the clutch piston, an oblique angle α is formed in the right end of the flow distribution disc, the diameter phi 1 of the oblique angle α is smaller than the radial distribution size phi 2 of the lubricating oil groove C in the clutch piston, the width W of the flow distribution disc is larger than the diameter phi of a lubricating oil channel B in the driven shaft, and a radial gap S is formed between the flow distribution disc and the driven shaft.
A wet clutch internal spline hub a is fixedly connected to the driven shaft, a lubricating oil channel A and a lubricating oil channel B are arranged on the driven shaft, and the lubricating oil channel B is right opposite to the corresponding flow distribution disc; a clamp spring groove is formed in the middle of the driven shaft, the clamp spring is installed in the clamp spring groove, and a baffle and a clutch separation disc spring are sequentially installed between the clamp spring and the flow distribution disc.
The utility model adopts the above technical scheme can reach following positive effect after: the lubricating flow distribution structure is compact in structure, novel in design thought and safe and reliable in use, lubricating oil with different flows can be provided under the separation and combination states of the wet clutch according to the design and actual use requirements, and the problem that the lubricating flow of the wet clutch of the power shifting and power reversing tractor cannot be effectively distributed can be effectively solved.
Drawings
Fig. 1 is the structure diagram of the wet clutch separating state of the lubrication flow distribution structure of the wet clutch of the power gear shifting tractor.
Fig. 2 is the flow direction schematic diagram of the lubricating oil in the wet clutch engagement state of the lubricating flow distribution structure of the power gear shifting tractor wet clutch of the present invention.
Fig. 3 is a partial view of fig. 1 according to the present invention.
Fig. 4 is the utility model discloses the arrangement schematic diagram of lubricating-oil groove C on the piston of power tractor wet clutch's lubricated flow distribution structure of shifting.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. As shown in fig. 1, the lubrication flow distribution structure of the wet clutch of the power shifting tractor mainly comprises: the driving gear 1, the wet clutch assembly 2, the driven shaft 8, the flow distribution plate 9 and the like. The driving gear 1 is installed on the driven shaft 8 through the roller pin 14, the left end contacts with the gasket 15 and is limited, the right end contacts with the thrust bearing 13, and the right end of the thrust bearing 13 contacts with the snap spring 12 fixed on the driven shaft 8 and is limited. The clutch plate 5 of the wet clutch assembly 2 is splined to the wet clutch inner spline hub a of the driven shaft 8, and the clutch plate 6 of the wet clutch assembly 2 is splined to the wet clutch outer spline hub b of the drive gear 1. Flow distribution dish 9 is installed on driven shaft 8, and flow distribution dish 9 left end contacts and spacing with the clutch separation dish spring 10 of installing on driven shaft 8, and flow distribution dish 9 right-hand member contacts and spacing with the clutch piston 7 of installing on driven shaft 8.
As shown in fig. 1, the driving gear 1 is provided with a wet clutch external spline hub b and is fixedly connected with the driving gear 1, so that power can be transmitted from the driving gear 1 to the wet clutch external spline hub b through the clutch driven plate 5 and the clutch friction plate 6, and then the power is transmitted to the driven shaft 8, and the power is transmitted from the driving to the driven.
As shown in fig. 1, a plurality of damping holes D are formed in the wet clutch external spline hub b, and the damping holes D are opposite to the clutch friction plates 6. When the wet clutch is disengaged or engaged, the lubricating oil lubricates and cools the clutch friction plate 6 through the damping holes D.
As shown in fig. 1 and 2, the wet clutch assembly 2 mainly includes: the clutch comprises a clutch retainer ring 3, a clutch pressure plate 4, a clutch driven plate 5, a clutch friction plate 6, a clutch piston 7 and the like, wherein the clutch driven plate 5 is in spline connection with a wet clutch inner spline hub a in a driven shaft 8, the clutch friction plate 6 is in spline connection with a wet clutch outer spline hub b on a driving gear 1, the clutch driven plate 5 and the clutch friction plate 6 are alternately arranged and installed in the wet clutch inner spline hub a on the driven shaft 8, the clutch pressure plate 4 is connected with the wet clutch inner spline hub a on the driven shaft 8 through splines, the clutch retainer ring 3 is installed in an inner groove on the wet clutch inner spline hub a in the driven shaft 8, and the clutch piston 7 is installed in an inner cavity of the wet clutch inner spline hub a in the driven shaft 8. Under the action of the pressure oil, the clutch piston 7 is pushed to move leftwards, and the clutch driven plate 5 and the clutch friction plate 6 are pressed tightly. Power is transmitted to the clutch driven plate 5 and the clutch friction plate 6 through the wet clutch external spline hub b on the driving gear 1 and then transmitted to the driven shaft 8 through the wet clutch internal spline hub a on the driven shaft 8, and power transmission of the power shifting wet clutch is achieved.
As shown in fig. 1 to 4, in the implementation process of the technical scheme, a plurality of lubricating oil grooves C are arranged on the clutch piston 7, the specific number N, the width Z, the depth M and the radial distribution dimension phi 2 of the lubricating oil grooves C are set according to design and structural arrangement requirements, an oblique angle α is arranged at the right end of the flow distribution plate 9, and the diameter phi 1 at the oblique angle α is smaller than the radial distribution dimension phi 2 of the lubricating oil grooves C on the clutch piston 7, so as to ensure that a large amount of lubricating oil passes through the lubricating oil passage a, the lubricating oil passage B, the lubricating oil groove C and the damping hole D in sequence to fully lubricate and cool the clutch friction plate 6 in the engagement state of the wet clutch.
As shown in fig. 1, the driven shaft 8 is provided with a wet clutch inner spline hub a, and is fixedly connected with the driven shaft 8, and forms a certain inner cavity for mounting related parts of a wet clutch, such as a clutch retainer 3, a clutch pressure plate 4, a clutch piston 7, a clutch driven plate 5, a clutch friction plate 6, a clutch piston 7, and the like.
As shown in fig. 3, the driven shaft 8 is provided with a lubricating oil passage a and a lubricating oil passage B, and the lubricating oil passage B is directly opposite to the flow distribution plate 9 in the wet clutch disengaged state. In the implementation process of the technical scheme, the width W of the flow distribution disc 9 is larger than the diameter phi of the lubricating oil channel B on the driven shaft 8 according to the structural arrangement requirement so as to seal lubricating oil; meanwhile, a radial gap S is formed between the flow distribution disc 9 and the driven shaft 8 to ensure that a small amount of lubricating oil sequentially passes through the lubricating oil channel A, the lubricating oil channel B, the gap S and the damping hole D to lubricate and cool the clutch friction plate 6 in a wet clutch separation state.
As shown in fig. 1, a clamp spring groove is formed in the middle of the driven shaft 8, a clamp spring 12 is installed in the clamp spring groove, and a baffle plate 11 and a clutch separation disc spring 10 are sequentially installed between the clamp spring 12 and the flow distribution disc 9. In the state that the wet clutch assembly 2 is separated, the clutch separation disc spring 10 overcomes the oil resistance to push the clutch piston 7 back to the initial separation state, so as to ensure that the wet clutch assembly 2 realizes good separation.
The dynamic gear shifting tractor has the advantages that the driving gear 1, the wet clutch assembly 2, the driven shaft 8, the flow distribution plate 9 and the like are reasonably arranged, the structural characteristics of parts are fully utilized, the reasonable distribution of the lubricating flow of the wet clutch by the dynamic gear shifting tractor is realized, the lubricating and cooling effects of the wet clutch can be effectively improved, the problem that the service life of a friction plate is shortened due to the fact that the temperature of the friction plate is sharply increased can be effectively solved, and meanwhile, the energy consumption of a transmission system due to heating is greatly reduced.
Finally, it should be noted that: while the present invention has been described with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. All changes, modifications, equivalents and the like which come within the spirit of the invention are intended to be embraced therein.
Claims (5)
1. Lubricated flow distribution structure of power tractor wet clutch of shifting includes: the device comprises a driving gear (1), a wet clutch assembly (2), a driven shaft (8) and a flow distribution disc (9); the method is characterized in that: the driving gear (1) is installed on the driven shaft (8) through a roller pin (14), the left end of the driving gear is in contact with a gasket (15), the right end of the driving gear is in contact with a thrust bearing (13), and the right end of the thrust bearing (13) is in contact with a clamp spring (12) fixed on the driven shaft (8); a clutch driven plate (5) in the wet clutch assembly (2) is in spline connection with a wet clutch inner spline hub a in a driven shaft (8), and a clutch friction plate (6) of the wet clutch assembly (2) is in spline connection with a wet clutch outer spline hub b on the driving gear (1); the flow distribution disc (9) is installed on the driven shaft (8), the left end of the flow distribution disc is in contact with a clutch separation disc spring (10) installed on the driven shaft (8), and the right end of the flow distribution disc is in contact with a clutch piston (7) installed on the driven shaft (8).
2. The lubrication flow distribution structure of a wet clutch of a powershift tractor according to claim 1, wherein: the driving gear (1) is fixedly connected with a wet clutch external spline hub b, a damping hole D is formed in the wet clutch external spline hub b, and the damping hole D is opposite to the corresponding clutch friction plate (6).
3. The lubrication flow distribution structure of a wet clutch of a powershift tractor according to claim 1, wherein: a wet clutch assembly (2) comprises: the clutch comprises a clutch retainer ring (3), a clutch pressure plate (4), a clutch driven plate (5), a clutch friction plate (6) and a clutch piston (7); the clutch driven plate (5) is in splined connection with a wet clutch inner spline hub a on a driven shaft (8), the clutch friction plates (6) are in splined connection with a wet clutch outer spline hub b on a driving gear (1), the clutch driven plate (5) and the clutch friction plates (6) are alternately arranged and installed in the wet clutch inner spline hub a in the driven shaft (8), the clutch pressure plate (4) is connected with the wet clutch inner spline hub a in the driven shaft (8) through splines, the clutch check ring (3) is installed in an inner groove on the wet clutch inner spline hub a in the driven shaft (8), and the clutch piston (7) is installed in an inner cavity of the wet clutch inner spline hub a on the driven shaft (8).
4. The lubrication flow distribution structure of the wet clutch of the power shift tractor as claimed in claim 1, wherein a lubrication oil groove C is formed in the clutch piston (7), an oblique angle α is formed in the right end of the flow distribution plate (9), the diameter phi 1 of the oblique angle α is smaller than the radial distribution dimension phi 2 of the lubrication oil groove C in the clutch piston (7), the width W of the flow distribution plate (9) is larger than the diameter phi of a lubrication oil channel B in the driven shaft (8), and a radial gap S is formed between the flow distribution plate (9) and the driven shaft (8).
5. The lubrication flow distribution structure of a wet clutch of a powershift tractor according to claim 1, wherein: a wet clutch internal spline hub a is fixedly connected to the driven shaft (8), a lubricating oil channel A and a lubricating oil channel B are arranged on the driven shaft (8), and the lubricating oil channel B is right opposite to the corresponding flow distribution plate (9); a clamp spring groove is formed in the middle of the driven shaft (8), a clamp spring (12) is installed in the clamp spring groove, and a baffle plate (11) and a clutch separation disc spring (10) are sequentially installed between the clamp spring (12) and the flow distribution disc (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579121.4U CN210196303U (en) | 2019-04-26 | 2019-04-26 | Lubrication flow distribution structure of wet clutch of power gear shifting tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579121.4U CN210196303U (en) | 2019-04-26 | 2019-04-26 | Lubrication flow distribution structure of wet clutch of power gear shifting tractor |
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| Publication Number | Publication Date |
|---|---|
| CN210196303U true CN210196303U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920579121.4U Active CN210196303U (en) | 2019-04-26 | 2019-04-26 | Lubrication flow distribution structure of wet clutch of power gear shifting tractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131326A (en) * | 2019-04-26 | 2019-08-16 | 第一拖拉机股份有限公司 | The lubrication flow distribution structure of power shifting tractor wet clutch |
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2019
- 2019-04-26 CN CN201920579121.4U patent/CN210196303U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131326A (en) * | 2019-04-26 | 2019-08-16 | 第一拖拉机股份有限公司 | The lubrication flow distribution structure of power shifting tractor wet clutch |
| CN110131326B (en) * | 2019-04-26 | 2024-01-19 | 第一拖拉机股份有限公司 | Lubrication flow distribution structure of wet clutch of power shift tractor |
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