CN209892718U - Shafting oil pipe structure and hybrid power gearbox - Google Patents
Shafting oil pipe structure and hybrid power gearbox Download PDFInfo
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- CN209892718U CN209892718U CN201920388222.3U CN201920388222U CN209892718U CN 209892718 U CN209892718 U CN 209892718U CN 201920388222 U CN201920388222 U CN 201920388222U CN 209892718 U CN209892718 U CN 209892718U
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Abstract
The utility model provides a shafting oil pipe structure, including input shaft, input shaft supporting seat and interior oil pipe, the first end of input shaft is installed in the input shaft supporting seat, interior oil pipe is installed in the inside of input shaft, form high-pressure oil transfer passage in the interior oil pipe, interior oil pipe with be equipped with the clearance between the input shaft in order to form low-pressure oil transfer passage, the utility model provides a shafting oil pipe structure, with high-pressure oil transfer passage and low-pressure oil transfer passage all integrated in the input shaft, keep apart through interior oil pipe, guarantee that two kinds of oil circuit oil deliveries are not influenced each other; and then the hybrid gearbox who provides, include as above-mentioned shafting oil pipe structure, correspondingly, the utility model provides a hybrid gearbox has simplified the setting of two kinds of oil circuits of high pressure oil and low-pressure oil for the fitting surface of whole pipeline reduces, has reduced the required precision, has improved the finished product machining rate.
Description
Technical Field
The utility model relates to the technical field of automobiles, especially, relate to a shafting oil pipe structure and hybrid transmission.
Background
With increasing atmospheric pollution environmental pressure and the emergence of severe environmental regulations, new energy vehicles with more energy saving and low emission are gradually coming out, however, the development of battery technology cannot meet the requirement of high mileage of vehicle operation, and therefore, hybrid vehicles using more than two energy sources are produced.
The hybrid power transmission is an important component of a hybrid power automobile, and a core system of the hybrid power transmission adopts a mechanical-electrical-hydraulic coupling mode. The hydraulic control system has the functions of operating a plurality of clutches, brakes and other components, switching between the running mode and the gears of the whole vehicle is achieved, the oil supply pipeline provides hydraulic oil for hydraulic execution elements, control valves and the like, lubricating and cooling oil is also provided for a mechanical execution mechanism, the oil supply pipeline is usually arranged correspondingly with the input shaft, if an oil pipe or an oil duct is added in the input shaft to serve as a high-pressure control oil path, and then an external oil pipe is connected with the clutches and the brakes to serve as a low-pressure cooling oil pipe, but because the design of the gearboxes of various models is different, the oil pipe structure needs to be arranged correspondingly, the matching surfaces are too complex, the assembly is complex, the machining precision requirement is high, and the machining difficulty is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shafting oil pipe structure and hybrid transmission aims at solving in the hybrid transmission that high-pressure control oil pipe and low pressure cooling oil pipe overall arrangement are complicated, lead to the fitting surface many, assemble loaded down with trivial details, and the high-pressure control oil circuit can only be along with the problem that the input shaft is suitable for single clutch.
The utility model provides an axle system oil pipe structure, including input shaft, input shaft supporting seat and interior oil pipe, the first end of input shaft is installed in the input shaft supporting seat, interior oil pipe is installed in the inside of input shaft, form high-pressure oil transfer passage in the interior oil pipe, be equipped with the clearance so as to form low-pressure oil transfer passage between interior oil pipe and the input shaft; the oil pump is characterized in that a low-pressure oil inlet and a low-pressure oil outlet which are communicated with the low-pressure oil conveying channel respectively are formed in the input shaft, a first high-pressure oil inlet and a first high-pressure oil outlet are formed in the input shaft, a second high-pressure oil inlet and a second high-pressure oil outlet are formed in the inner oil pipe, the first high-pressure oil inlet, the second high-pressure oil inlet and the high-pressure oil conveying channel are communicated in sequence, and the high-pressure oil conveying channel, the second high-pressure oil outlet and the first high-pressure oil outlet are communicated in sequence.
The input shaft support base is internally provided with a high-pressure oil injection channel and a low-pressure oil injection channel, the high-pressure oil injection channel is communicated with the first high-pressure oil inlet, and the low-pressure oil injection channel is communicated with the low-pressure oil inlet.
The high-pressure oil injection channel and the low-pressure oil injection channel respectively comprise a longitudinal part and a transverse part which are communicated with each other, the longitudinal part is arranged on the end face of the input shaft supporting seat, and the transverse part is communicated with the first high-pressure oil inlet or the low-pressure oil inlet.
The inner oil pipe comprises protruding parts at two ends of the inner oil pipe and a connecting part between the two protruding parts, and the low-pressure oil conveying channel is formed between the connecting part and the input shaft.
The inner oil pipe is installed in the input shaft through the bulge, and the outer surface of the bulge is attached to the inner surface of the input shaft.
Two sealing grooves are formed in the protruding portion, close to the input shaft supporting seat, of the inner oil pipe, and the two sealing grooves are formed in the two sides of the second high-pressure oil inlet respectively.
The second high-pressure oil inlet is formed in the protruding portion close to the input shaft supporting seat, and the second high-pressure oil outlet is formed in the protruding portion far away from the input shaft supporting seat.
The bulge part of the inner oil pipe, which is far away from the input shaft supporting seat, is provided with a spline groove, and the low-pressure oil outlet is communicated with the low-pressure oil conveying channel through the spline groove; or, the bulge part of the inner oil pipe, which is far away from the input shaft supporting seat, is provided with a spline groove, the low-pressure oil outlet is communicated with the part of the inner cavity of the input shaft, which is not provided with the inner oil pipe, and is communicated with the spline groove, and therefore the low-pressure oil outlet is communicated with the low-pressure oil conveying channel through the spline groove.
The second high-pressure oil outlet is communicated with the first high-pressure oil outlet through a connecting pipe.
According to the utility model discloses still provide a hybrid transmission in another aspect, include as above-mentioned arbitrary shafting oil pipe structure.
The utility model provides a shafting oil pipe structure and hybrid gearbox has following beneficial effect:
1. the high-pressure oil conveying channel and the low-pressure oil conveying channel are integrated in the input shaft and are isolated through the inner oil pipe, so that the oil conveying of the two oil paths is not influenced mutually, the arrangement of the two oil paths is greatly simplified, the matching surface of the whole pipeline is reduced, the precision requirement is reduced, and the finished product processing rate is improved;
2. the utility model discloses can be according to the different positions that need lubricated part place in the gearbox, set up corresponding low pressure oil delivery outlet on the input shaft in a flexible way, can directly aim at lubricated part, effectively solved the bad problem of cooling lubrication, reduced the loss of low pressure oil.
Drawings
Fig. 1 is a cross-sectional view of a shafting oil pipe structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of an input shaft of the shafting oil pipe structure shown in FIG. 1;
FIG. 3 is a schematic view of an inner oil tube of the shafting oil tube structure shown in FIG. 1;
FIG. 4 is a cross-sectional view of an input shaft support of the shafting oil tube configuration shown in FIG. 1.
[ description of reference ]
1-an input shaft; 11-a first high pressure oil inlet; 12-a first high pressure oil outlet; 13-low pressure oil inlet; 14-a low pressure oil outlet; 2-an inner oil pipe; 21-a second high pressure oil inlet; 22-a second high pressure oil outlet; 201-a projection; 202-a connecting portion; 2011-seal groove; 2012-o-ring; 2013-spline groove; 3-input shaft supporting seat; 31-high pressure oil injection channel; 311-longitudinal section of high pressure oil injection channel; 312-lateral portion of high pressure oil injection channel; 32-low pressure oil injection channel; 321-a longitudinal portion of the low pressure oil injection passage; 322-the transverse portion of the low pressure oil injection passage; 4-high pressure oil delivery path; 5-a low-pressure oil delivery channel; 6-connecting pipe.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, the utility model provides a shafting oil pipe structure, including input shaft 1, interior oil pipe 2 and input shaft supporting seat 3, the first end of input shaft 1 is installed in input shaft supporting seat 3, and interior oil pipe 2 is installed in the inside of input shaft 1, and interior oil pipe 2 forms high-pressure oil transfer passage 4 in, is equipped with the clearance in order to form low-pressure oil transfer passage 5 between interior oil pipe 2 and the input shaft 1.
In this embodiment, a first high-pressure oil inlet 11 is formed at a first end of the input shaft 1, the inner oil pipe 2 is assembled inside the input shaft 1, a second high-pressure oil inlet 21 is formed at the first end of the inner oil pipe 2, the second high-pressure oil inlet 21 is communicated with the first high-pressure oil inlet 11, and the number of the first high-pressure oil inlets 11 and the number of the second high-pressure oil inlets 21 are plural. Preferably, in the present embodiment, a plurality of first high-pressure oil inlets 11 are uniformly formed along the circumferential direction of the input shaft 1, and correspondingly, the same number of second high-pressure oil inlets 21 are formed at corresponding positions along the circumferential direction of the inner oil pipe 2, so that the first high-pressure oil inlets 11, the second high-pressure oil inlets 21 and the high-pressure oil delivery passage 4 in the inner oil pipe 2 are ensured to be sequentially communicated. The second end of the inner oil pipe 2 is provided with a second high-pressure oil outlet 22, and the input shaft 1 is provided with a first high-pressure oil outlet 12 corresponding to the second high-pressure oil outlet 22, so that the first high-pressure oil outlet 12, the second high-pressure oil outlet 22 and the high-pressure oil conveying channel 4 in the inner oil pipe 2 are ensured to be sequentially communicated.
Further, in the present embodiment, the first end of the input shaft 1 is further provided with a low-pressure oil inlet 13, and the opening position of the low-pressure oil inlet 13 is farther from the end surface of the first end of the input shaft 1 than the opening position of the first high-pressure oil inlet 11, preferably, the low-pressure oil inlet 13 of the input shaft 1 in the present embodiment is provided with a plurality of openings around the circumference of the input shaft 1, and all the openings are communicated with the low-pressure oil delivery passage 5;
in this embodiment, the input shaft 1 is provided with a plurality of low-pressure oil outlets 14, each low-pressure oil outlet 14 is communicated with the low-pressure oil delivery passage 5, and the low-pressure oil outlets 14 can be formed at corresponding positions on the output shaft 1 according to components needing to be lubricated in the gearbox. Referring to fig. 2, preferably, the plurality of low pressure oil outlets 14, one of the first high pressure oil inlets 11, one of the low pressure oil inlets 13, and the first high pressure oil outlet 12 in the present embodiment are opened along the axial direction of the input shaft 1 and are arranged on the same straight line, so that the input shaft 1 can be more easily machined and operated.
In the shafting oil pipe structure, high-pressure oil enters from a first high-pressure oil inlet 11 on the first end of an input shaft 1, enters a high-pressure oil conveying channel 4 in an inner oil pipe 2 through a second high-pressure oil inlet 21, flows through the high-pressure oil conveying channel 4, sequentially flows out of the input shaft 1 from a second high-pressure oil outlet 22 and a first high-pressure oil outlet 12 and enters a clutch control cavity; and low-pressure oil enters the low-pressure oil conveying channel 5 formed by the gap between the inner oil pipe 2 and the input shaft 1 from a low-pressure oil inlet 13 on the first end of the input shaft 1 and then flows out of the input shaft 1 from each low-pressure oil outlet 14 to reach each part needing cooling and lubrication, so that the high-pressure oil and the low-pressure oil are separated by the inner oil pipe 2, and independent conveying oil paths are respectively formed inside and outside the inner oil pipe 2.
As shown in fig. 3, the inner oil pipe 2 in the present embodiment includes projections 201 at both ends thereof and a connecting portion 202 between the two projections 201, the low-pressure oil delivery passage 5 is formed between the connecting portion 202 and the input shaft 1, and the inner oil pipe 2 is mounted in the input shaft 1 through the projections 201. In this embodiment, the two ends of the inner oil pipe 2 are closed end surfaces, the high-pressure oil flows in the high-pressure oil conveying passage 4 inside the inner oil pipe 2, and the low-pressure oil flows in the low-pressure oil conveying passage between the connecting portion 202 and the input shaft 1, so that effective isolation is realized. Further, according to the technical requirements of the gearbox, the area ratio of the high-pressure oil delivery passage 4 to the low-pressure oil delivery passage 5 on the same section can be adjusted according to the external diameter ratio and the internal diameter ratio of the connecting part 202 of the internal oil pipe 2, and then the flow rate of the high-pressure oil and the low-pressure oil on the same section in unit time can be adjusted.
Specifically, in this embodiment, a second high-pressure oil inlet 21 is provided on the protrusion 201 of the inner oil pipe 2 close to the input shaft support base 3, a second high-pressure oil outlet 22 is provided on the protrusion 201 of the inner oil pipe 2 far away from the input shaft support base 3, the outer surface of the protrusion 201 of the inner oil pipe 2 is attached to the inner surface of the input shaft 1, so that the first high-pressure oil inlet 11 is attached to the second high-pressure oil inlet 21, the first high-pressure oil outlet 12 is attached to the second high-pressure oil outlet 22, and thus hydraulic oil is prevented from flowing between the input shaft 1 and the inner oil pipe 2 along the axis.
In order to further prevent the high-pressure oil from leaking at the tight contact position between the first high-pressure oil inlet 11 and the second high-pressure oil inlet 21, a sealing groove 2011 is formed in two sides of the second high-pressure oil inlet 21, the sealing groove 2011 is formed in the protruding portion 201, close to the input shaft supporting seat 3, of the inner oil pipe 2, and the sealing ring 2012 is sleeved in the sealing groove 2011, so that the high-pressure oil can be effectively prevented from overflowing from the tight contact position between the first high-pressure oil inlet 11 and the second high-pressure oil inlet 21 and entering the low-pressure oil conveying channel 5.
In order to prevent the high-pressure oil from leaking at the tight alignment position between the first high-pressure oil outlet 12 and the second high-pressure oil outlet 22 and to guide the high-pressure oil to flow to the clutch control cavity outside the input shaft 1, the first high-pressure oil outlet 12 and the second high-pressure oil outlet 22 are communicated through the connecting pipe 6, one end of the connecting pipe 6 is in interference fit with the first high-pressure oil outlet 12 and the second high-pressure oil outlet 22, and the other end of the connecting pipe 6 is connected with the clutch pressure stabilizing cavity, so that the high-pressure oil is turned back through the high-pressure oil conveying channel 4 and enters the clutch pressure stabilizing cavity through the connecting pipe 6 in the first high-pressure oil outlet 12 and the second high-pressure oil outlet 22.
In the present embodiment, part of the low-pressure oil outlet 14 directly communicates with the low-pressure oil delivery passage 5. Furthermore, a spline groove 2013 is formed in the protruding portion 201, far away from the input shaft supporting seat 3, of the inner oil pipe 2, the spline groove 2013 is formed in the axial direction of the inner oil pipe 2, and the part of the low-pressure oil outlet 14 is communicated with the low-pressure oil delivery channel 5 through the spline groove 2013. Still further, a part of the low pressure oil outlet 14 communicates with a part of the inner cavity of the input shaft 1 where the inner oil pipe 2 is not provided, and communicates with the spline groove 2013, whereby the part of the low pressure oil outlet 14 communicates with the low pressure oil delivery passage 5 through the spline groove 2013. In this way, the low-pressure oil outlets 14 are directly or indirectly communicated with the low-pressure oil delivery passage 5, and multi-point lubrication can be realized.
In the embodiment, a high-pressure oil injection passage 31 and a low-pressure oil injection passage 32 are formed in the input shaft support base 3, the high-pressure oil injection passage 31 is communicated with the first high-pressure oil inlet 11, and the low-pressure oil injection passage 32 is communicated with the low-pressure oil inlet 13.
Specifically, referring to fig. 4, the high-pressure oil injection passage 31 and the low-pressure oil injection passage 32 in the present embodiment each include a longitudinal portion and a lateral portion that communicate with each other, the longitudinal portion 311 of the high-pressure oil injection passage and the longitudinal portion 321 of the low-pressure oil injection passage open on the end surface of the input shaft support base 3, the lateral portion 312 of the high-pressure oil injection passage and the lateral portion 322 of the low-pressure oil injection passage open around the circumferential direction on the inner wall of the input shaft support base 3, and the opening position of the lateral portion 312 of the high-pressure oil injection passage is set to be closer to the end surface of the input shaft support base 3 than the opening position of the lateral portion 322 of the high-pressure oil injection passage, thus, the lateral portion 312 of the high-pressure oil injection passage can communicate with each of the first high-pressure oil inlets 11 on the input shaft 1, and the lateral portion 322 of the low-pressure oil injection passage can also communicate with each of the low-pressure oil inlets 13 on the input shaft 1.
Thus, high-pressure oil and low-pressure oil are respectively input from the end face of the input shaft support seat 3 at the same time, the high-pressure oil flows in from the longitudinal part 311 of the high-pressure oil injection channel and then enters the transverse part 312 of the high-pressure oil injection channel, is supplied to each corresponding first high-pressure oil inlet 11 around the circumferential direction of the input shaft support seat 3, and enters the high-pressure oil conveying channel 4 in the inner oil pipe 2 along the first high-pressure oil inlet 11 and the second high-pressure oil inlet 21; the low pressure oil flows in from the longitudinal portion 321 of the low pressure oil injection passage, and since the lateral portion 322 of the low pressure oil injection passage is farther from the end face of the input shaft support base 3 than the lateral portion 312 of the high pressure oil injection passage, the longitudinal portion extends longer in the input shaft support base 3, and similarly, after the low pressure oil is transferred to the lateral portion 322 of the low pressure oil injection passage, the low pressure oil is supplied to the corresponding low pressure oil inlets 13 around the circumferential direction of the input shaft support base 3 and enters the low pressure oil delivery passage 5.
According to the utility model discloses in another aspect, still provide a hybrid gearbox, including above-mentioned shafting oil pipe structure, through all integrating high-pressure oil transfer passage 4 and low-pressure oil transfer passage 5 in input shaft 1, keep apart with interior oil pipe 2, when guaranteeing that two kinds of oil circuit oil deliveries are each other not influenced, greatly simplified the setting of two kinds of oil circuits for the fitting surface of whole pipeline reduces, has reduced the required precision, has improved the finished product machining rate.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
As used herein, the ordinal adjectives "first", "second", etc., used to describe an element are merely to distinguish between similar elements and do not imply that the elements so described must be in a given sequence, either temporally, spatially, in ranking, or otherwise.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A shaft system oil pipe structure is characterized by comprising an input shaft, an input shaft supporting seat and an inner oil pipe, wherein a first end of the input shaft is installed in the input shaft supporting seat, the inner oil pipe is installed inside the input shaft, a high-pressure oil conveying channel is formed in the inner oil pipe, and a gap is formed between the inner oil pipe and the input shaft to form a low-pressure oil conveying channel;
the oil pump is characterized in that a low-pressure oil inlet and a low-pressure oil outlet which are communicated with the low-pressure oil conveying channel respectively are formed in the input shaft, a first high-pressure oil inlet and a first high-pressure oil outlet are formed in the input shaft, a second high-pressure oil inlet and a second high-pressure oil outlet are formed in the inner oil pipe, the first high-pressure oil inlet, the second high-pressure oil inlet and the high-pressure oil conveying channel are communicated in sequence, and the high-pressure oil conveying channel, the second high-pressure oil outlet and the first high-pressure oil outlet are communicated in sequence.
2. The shafting oil pipe structure of claim 1, wherein a high-pressure oil injection passage and a low-pressure oil injection passage are formed in the input shaft support base, the high-pressure oil injection passage is communicated with the first high-pressure oil inlet, and the low-pressure oil injection passage is communicated with the low-pressure oil inlet.
3. The shafting oil pipe structure of claim 2, wherein the high pressure oil injection passage and the low pressure oil injection passage each comprise a longitudinal portion and a transverse portion which are communicated with each other, the longitudinal portion is opened on the end surface of the input shaft support seat, and the transverse portion is communicated with the first high pressure oil inlet or the low pressure oil inlet.
4. The shafting oil pipe structure of claim 1, wherein the inner oil pipe comprises projections at both ends thereof and a connecting portion between the two projections, and the low pressure oil feed passage is formed between the connecting portion and the input shaft.
5. The shafting oil pipe structure of claim 4, wherein the inner oil pipe is mounted in the input shaft through the protrusion, and an outer surface of the protrusion is attached to an inner surface of the input shaft.
6. The shafting oil pipe structure of claim 5, wherein the protrusion of the inner oil pipe close to the input shaft support seat is provided with two sealing grooves, and the two sealing grooves are respectively arranged on two sides of the second high-pressure oil inlet.
7. The shafting oil pipe structure of claim 4 or 5, wherein said second high-pressure oil inlet is provided on said projection close to said input shaft support base, and said second high-pressure oil outlet is provided on said projection remote from said input shaft support base.
8. The shafting oil pipe structure of claim 4, wherein the protrusion of the inner oil pipe away from the input shaft support seat is provided with a spline groove, and the low-pressure oil outlet is communicated with the low-pressure oil delivery channel through the spline groove; or, the bulge part of the inner oil pipe, which is far away from the input shaft supporting seat, is provided with a spline groove, the low-pressure oil outlet is communicated with the part of the inner cavity of the input shaft, which is not provided with the inner oil pipe, and is communicated with the spline groove, and therefore the low-pressure oil outlet is communicated with the low-pressure oil conveying channel through the spline groove.
9. The shafting oil pipe structure of claim 4, wherein the second high-pressure oil outlet and the first high-pressure oil outlet are communicated through a connecting pipe.
10. A hybrid transmission, characterized by comprising the shafting oil pipe structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388222.3U CN209892718U (en) | 2019-03-25 | 2019-03-25 | Shafting oil pipe structure and hybrid power gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388222.3U CN209892718U (en) | 2019-03-25 | 2019-03-25 | Shafting oil pipe structure and hybrid power gearbox |
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| CN209892718U true CN209892718U (en) | 2020-01-03 |
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| CN201920388222.3U Active CN209892718U (en) | 2019-03-25 | 2019-03-25 | Shafting oil pipe structure and hybrid power gearbox |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531100A (en) * | 2020-04-16 | 2021-10-22 | 赛峰传动系统公司 | Oil transfer device |
-
2019
- 2019-03-25 CN CN201920388222.3U patent/CN209892718U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531100A (en) * | 2020-04-16 | 2021-10-22 | 赛峰传动系统公司 | Oil transfer device |
| US11795875B2 (en) | 2020-04-16 | 2023-10-24 | Safran Transmission Systems | Oil transfer device |
| CN113531100B (en) * | 2020-04-16 | 2024-05-10 | 赛峰传动系统公司 | Oil transfer device |
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