CN110630651B

CN110630651B - Shaft, double-clutch automatic transmission structure with same and vehicle

Info

Publication number: CN110630651B
Application number: CN201910913056.9A
Authority: CN
Inventors: 林春鹏; 卢彩元; 吴秋生; 李海艇
Original assignee: Shenzhen Zhenyu New Energy Power Technology Co Ltd
Current assignee: Shenzhen Zhenyu New Energy Power Technology Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-25
Publication date: 2021-03-30
Anticipated expiration: 2039-09-25
Also published as: CN110630651A

Abstract

The invention discloses a shaft, a double-clutch automatic transmission structure with the same and a vehicle. An oil passage hole is formed in the shaft, an oil guide pin is assembled in the oil passage hole, an oil passing channel is formed between the oil guide pin and the oil passage hole, and the shaft is provided with a plurality of oil passing holes communicated with the oil passing channel. According to the shaft, the oil guide pin and the oil way hole can jointly form a slender oil passing channel so as to meet the flow requirement of lubricating oil, the slender oil way hole with higher precision is not required to be formed, and the manufacturing cost of the shaft is lower.

Description

Shaft, double-clutch automatic transmission structure with same and vehicle

Technical Field

The invention relates to the field of vehicle manufacturing, in particular to a shaft, a double-clutch automatic transmission structure with the shaft and a vehicle.

Background

In the related art, in order to prevent dry friction between the shaft and the bearing when the shaft rotates, an oil passage hole for passing lubricating oil is generally formed in the shaft, and the lubricating oil can flow to different oil flow passages through the oil passage hole to lubricate a transmission pair at different positions. In order to make the lubricating oil have proper flowing pressure and make the flow path of the lubricating oil longer, the prior art generally arranges an oil way hole with long axial distance and small cross section area in the shaft, but the slender oil way hole is difficult to manufacture in the actual process, the manufacturing cost is high and the rejection rate is high.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, a first aspect of the invention proposes a shaft that can be manufactured easily while the lubricating oil has a long flow path.

A second aspect of the invention proposes a dual clutch automatic transmission structure having the above-described shaft.

A third aspect of the invention proposes a vehicle having the above-described dual clutch automatic transmission structure.

According to the shaft of the first aspect of the present invention, an oil passage hole is formed in the shaft, an oil guide pin is assembled in the oil passage hole, an oil passage is configured between the oil guide pin and the oil passage hole, and the shaft is provided with a plurality of oil passing holes communicated with the oil passage.

According to the shaft, the oil guide pin and the oil passage hole in the first aspect of the invention, a slender oil passage can be formed together, so that the flow requirement of lubricating oil is met, the slender oil passage hole does not need to be formed, and the shaft is convenient to manufacture.

Further, the oil guide pin is suitable for interference fit with the oil way hole, an oil guide groove is formed in the peripheral surface of the oil guide pin, and the oil guide groove is suitable for forming the oil passing channel together with the hole wall of the oil way hole.

Furthermore, the axial two ends of the oil guide pin are respectively provided with an annular groove which surrounds the oil guide pin along the circumferential direction, and the oil guide groove is connected between the annular grooves.

Furthermore, the oil guide groove is an arc-shaped groove.

Optionally, the oil passage hole is disposed along an axial direction of the shaft and has an opening at least one end of the shaft in the axial direction, and the oil passing hole is disposed on an outer circumferential surface of the shaft and communicates with the oil passage hole.

According to the structure of the double clutch automatic transmission according to the second aspect of the invention, the shaft according to the first aspect of the invention is provided.

According to the structure of the double-clutch automatic transmission, the manufacturing is simpler, the lubricating requirement of the structure of the double-clutch automatic transmission can be met, and the service life is long.

Further, the dual clutch automatic transmission structure includes: an inner input shaft, an outer input shaft, and a clutch structure, the inner input shaft being disposed inside the outer input shaft, the inner input shaft being the shaft according to the first aspect of the present invention, a first oil flow passage being formed between the outer input shaft and the inner input shaft, the clutch structure comprising: an outer input shaft driven hub adapted to be in sleeve fit with the outer input periphery, an inner input shaft driven hub adapted to be in sleeve fit with the inner input periphery, and a support cover adapted to be connected to an output end of the dual clutch automatic transmission structure, wherein a second oil flow passage is formed between the outer input shaft driven hub and the inner input shaft driven hub, and a third oil flow passage is formed between the inner input shaft driven hub and the support cover, wherein the first oil flow passage is in direct communication with the second oil flow passage, and the first oil flow passage is in communication with the third oil flow passage through the oil flow passage.

Further, a fourth oil flow passage is also formed between the outer input shaft and the inner input shaft, the clutch structure separates the first oil flow passage from the fourth oil flow passage, and the first oil flow passage communicates with the fourth oil flow passage through the oil passage.

According to the vehicle of the third aspect of the invention, the double clutch automatic transmission structure according to the second aspect of the invention is provided.

According to the vehicle of the third aspect of the invention, the vehicle is simpler to manufacture.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a dual clutch automatic transmission configuration of an embodiment of the present invention;

fig. 2 is a schematic structural view of an oil guide pin according to an embodiment of the present invention.

Reference numerals:

the dual clutch automatic transmission structure 100, a shaft (inner input shaft) 1, an oil passage hole 11, an oil passage 12, an oil passage hole 13, an outer input shaft 2, a clutch structure 3, an outer input shaft driven hub 31, an inner input shaft driven hub 32, a support cover 33, a wet friction plate and steel sheet assembly 34, a first oil flow passage 41, a second oil flow passage 42, a third oil flow passage 43, a fourth oil flow passage 44, an output end 5, an oil guide pin 6, an annular groove 61, an oil guide groove 62, a first needle bearing 71, a second needle bearing 72, a third needle bearing 73, a first thrust bearing 81, a second thrust bearing 82, and a release bearing seat 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "inner", "outer", "axial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention is described below with reference to specific embodiments in conjunction with the accompanying drawings.

A shaft 1 according to an embodiment of the invention will first be described with reference to fig. 1-2.

As shown in fig. 1-2, an oil passage hole 11 is formed in a shaft 1 according to an embodiment of the present invention, an oil guide pin 6 is fitted in the oil passage hole 11, an oil passage 12 is formed between the oil guide pin 6 and the oil passage hole 11, and a plurality of oil passing holes 13 communicating with the oil passage 12 are formed in the shaft 1. The lubricating oil can flow into the oil passage 12 through one oil passing hole 13 and flow out of the oil passage 12 from the other oil passing hole 13.

According to the shaft 1 of the embodiment of the invention, by arranging the oil guide pin 6, the oil passage hole 11 can be opened into a passage with a larger cross section without arranging the oil passage hole 11 into an elongated passage, and the oil guide pin 6 is arranged in the oil passage hole 11, so that the elongated oil passing passage 12 can be formed between the oil guide pin 6 and the oil passage hole 11. Therefore, the lubricating oil flowing in the oil passage 12 can be ensured to have higher flow pressure, so that the flowing path of the lubricating oil is longer, parts at more positions can be lubricated, and the lubricating effect is good. Meanwhile, by replacing the oil guide pins 6 with different shapes, the oil passing channels 12 with different cross-sectional areas can be arranged according to the actual flow pressure requirement of the lubricating oil, and the universality is high.

In some alternative embodiments of the present invention, as shown in fig. 1, the oil guide pin 6 is adapted to be in interference fit with the oil passage hole 11, for example, the oil guide pin 6 may be press-fitted into the oil passage hole 11. The outer peripheral surface of the oil guide pin 6 is provided with an oil guide groove 62, the oil guide groove 62 is suitable for forming an oil passing channel 12 together with the hole wall of the oil circuit hole 11, and the cross-sectional areas of the formed oil passing channels 12 are different by arranging the oil guide grooves 62 with different depths. Meanwhile, the part of the oil guide pin 6 in interference fit with the oil passage hole 11 can block lubricating oil, so that the lubricating oil flowing into the oil passage hole 11 through the oil passing hole 13 can not flow through other parts except the oil passing channel 12 in the oil passage hole 11, and the lubricating oil is ensured to have higher flow pressure.

More specifically, as shown in fig. 1 and 2, the oil guide pin 6 is provided at both axial ends thereof with annular grooves 61 circumferentially surrounding the oil guide pin 6, respectively, and the oil guide groove 62 is connected between the annular grooves 61. Therefore, before the oil guide groove 62 is machined, the annular grooves 61 can be formed in advance at the two axial ends of the oil guide pin 6, the oil guide groove 62 can be formed between the two annular grooves 61, and the oil guide groove 62 is formed more conveniently. It is understood that a portion other than the oil guide groove 62 is interference-fitted with the oil passage hole 11 in the axial direction of the oil guide pin 6.

More specifically, as shown in fig. 2, the oil guide groove 62 is an arc-shaped groove. From this, lead oil groove 62 can be directly to leading the cutting shaping of oil round pin 6 through the arc cutter, and the shaping of leading oil groove 62 is convenient.

Alternatively, as shown in fig. 1, the oil passage hole 11 is provided along the axial direction of the shaft 1 and is opened at least at one end in the axial direction of the shaft 1, and the oil passing hole 13 is opened in the outer circumferential surface of the shaft 1 and communicates with the oil passage hole 11. Thus, the oil guide pin 6 can be easily press-fitted into the oil passage hole 11 from the opening, and the oil guide groove 62 is opposed to the oil passing hole 13 to form the oil passing passage 12 communicating with the oil passing hole 13.

A dual clutch automatic transmission architecture 100 of an embodiment of the present invention is described below with reference to fig. 1.

As shown in fig. 1, a vehicle according to an embodiment of the present invention is provided with a shaft 1 according to any one of the above-described embodiments of the present invention.

According to the dual clutch automatic transmission structure 100 of the embodiment of the invention, the shaft 1 is arranged, so that the manufacturing is simpler, the lubricating requirement of the dual clutch automatic transmission structure 100 can be met, and the service life is long.

Specifically, as shown in fig. 1, the dual clutch automatic transmission structure 100 includes: the clutch comprises an inner input shaft 1, an outer input shaft 2 and a clutch structure 3, wherein the inner input shaft 1 is sleeved in the outer input shaft 2, the inner input shaft 1 is the shaft 1 of the embodiment of the invention, and a first oil flow channel 41 is formed between the outer input shaft 2 and the inner input shaft 1.

As shown in fig. 1, the clutch structure 3 includes: an outer input shaft driven hub 31 adapted to mate with an outer input annulus, an inner input shaft driven hub 32 adapted to mate with an inner input annulus, and a support cover 33 adapted to be coupled to the output 5 of the dual clutch automatic transmission arrangement 100 (e.g., a flywheel of an engine of a vehicle, etc.).

As shown in fig. 1, a second oil flow passage 42 is formed between the outer input shaft driven hub 31 and the inner input shaft driven hub 32, a third oil flow passage 43 is formed between the inner input shaft driven hub 32 and the support cover 33, and the second oil flow passage 42 is separated from the third oil flow passage 43 by the inner input shaft driven hub 32. Wherein the first oil flow passage 41 is in direct communication with the second oil flow passage 42, and the first oil flow passage 41 is in communication with the third oil flow passage 43 through the oil passage 12.

As shown by the arrows in fig. 1, the lubricating oil can enter the first oil flow passage 41 from the annular gap between the outer input shaft 2 and the same axial end of the inner input shaft 1, so as to lubricate the parts such as the separating bearing seat 9 in the first oil flow passage 41, the first needle roller bearing 71 sleeved outside the inner input shaft 1, the second needle roller bearing 72 and the like, and part of the lubricating oil in the first oil flow passage 41 directly flows to the second oil flow passage 42, so as to lubricate the parts such as the first thrust bearing 81, the wet friction plate and steel plate assembly 34 and the like of the second oil flow passage 42.

As shown in fig. 1, the oil passing holes 13 have a first oil passing hole 13 and a second oil passing hole 13, the first oil passing hole 13 communicating with the first oil flow path 41, and the second oil passing hole 13 communicating with the third oil flow path 43. Another portion of the lubricating oil in the first oil flow passage 41 flows into the oil passage 12 through the first oil passing hole 13, flows out of the oil passage 12 from the second oil passing hole 13 and flows into the third oil flow passage 43, thereby lubricating the second thrust bearing 82, the wet friction plate and steel sheet assembly 34 and the like of the third oil flow passage 43.

Specifically, as shown in fig. 1, a fourth oil flow passage 44 is also formed between the outer input shaft 2 and the inner input shaft 1, the clutch structure 3 separates the first oil flow passage 41 from the fourth oil flow passage 44, and the first oil flow passage 41 communicates with the fourth oil flow passage 44 through the oil passage 12. Thus, part of the lubricating oil flowing out of the oil passage 12 from the second oil passing holes 13 can flow into the fourth oil flow passage 44 to lubricate the parts such as the third needle bearing 73 and the like which are sleeved outside the inner input shaft 1 in the fourth oil flow passage 44.

The specific components of the clutch structure 3, the first needle bearing 71, the second needle bearing 72, the third needle bearing 73, the first thrust bearing 81, the second thrust bearing 82, and the release bearing seat 9 are all prior art, and are not the invention of the present invention, so the technical effects thereof are not described in detail.

A vehicle of an embodiment of the invention is described below.

The vehicle according to the embodiment of the invention is provided with the dual clutch automatic transmission structure 100 according to any one of the above-described embodiments of the invention.

According to the vehicle of the embodiment of the invention, by providing the dual clutch automatic transmission structure 100, the vehicle is simpler to manufacture.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as being constructed of the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The shaft is characterized in that an oil path hole is formed in the shaft, an oil guide pin is assembled in the oil path hole, an oil passing channel is formed between the oil guide pin and the oil path hole, and the shaft is provided with a plurality of oil passing holes communicated with the oil passing channel;

lead the oil round pin be suitable for with oil circuit hole interference fit, the outer peripheral face of leading the oil round pin is equipped with leads the oil groove, lead the oil groove be suitable for with the pore wall of oil circuit hole constructs jointly the oil channel of crossing, lead the oil groove with cross the oilhole just to setting up in the footpath just lead the both ends of oil groove respectively through two cross the oilhole with be located the oil flow passageway intercommunication in the radial outside of oil channel.

2. The shaft of claim 1, wherein the oil guide pins are provided at both axial ends thereof with annular grooves circumferentially surrounding the oil guide pins, respectively, and the oil guide grooves are connected between the annular grooves.

3. The shaft of claim 2, wherein the oil-guiding groove is an arcuate groove.

4. The shaft according to claim 1, wherein the oil passage hole is provided in an axial direction of the shaft and is provided with an opening at least one end in the axial direction of the shaft, and the oil passing hole is opened in an outer peripheral surface of the shaft and communicates with the oil passage hole.

5. A dual clutch automatic transmission arrangement comprising a shaft according to any of claims 1-4.

6. The dual clutch automatic transmission structure according to claim 5, characterized by comprising: an inner input shaft, an outer input shaft and a clutch arrangement, the inner input shaft being disposed within the outer input shaft, the inner input shaft being the shaft of any one of claims 1-4, a first oil flow passage being formed between the outer input shaft and the inner input shaft;

the clutch structure includes: an outer input shaft driven hub adapted to sleeve-fit with the outer input shaft, an inner input shaft driven hub adapted to sleeve-fit with the inner input shaft, and a support cover adapted to connect with an output end of the dual clutch automatic transmission structure, wherein a second oil flow passage is formed between the outer input shaft driven hub and the inner input shaft driven hub, and a third oil flow passage is formed between the inner input shaft driven hub and the support cover;

wherein the first oil flow passage is in direct communication with the second oil flow passage, and the first oil flow passage is in communication with the third oil flow passage through the oil passing passage.

7. The dual clutch automatic transmission structure according to claim 6, characterized in that a fourth oil flow passage is further formed between the outer input shaft and the inner input shaft, the clutch structure separates the first oil flow passage from the fourth oil flow passage, and the first oil flow passage communicates with the fourth oil flow passage through the oil passage.

8. A vehicle characterized by comprising a dual clutch automatic transmission structure according to any one of claims 5 to 7.