CN217633768U - Triaxial derailleur and new forms of energy car - Google Patents

Abstract

The utility model belongs to the technical field of transmission, especially, relate to a triaxial derailleur and new forms of energy car. The utility model discloses a triaxial derailleur, include: the oil guide device comprises an input shaft, an output shaft, a shaft sleeve, a first bearing and an intermediate shaft, wherein the input shaft and the output shaft are coaxially arranged, the output shaft is sleeved on the input shaft through the first bearing, the first bearing is positioned at one end of the input shaft inserted into the output shaft, the intermediate shaft is arranged in parallel with the input shaft and/or the output shaft, the shaft sleeve is sleeved at one end of the input shaft close to the first bearing, an oil guide channel is formed between the shaft sleeve and the input shaft, and the oil guide channel is provided with a first opening facing the first bearing and a second opening facing the outer side of the radial direction of the input bearing. The utility model discloses the bearing of the derailleur intermediate position that can make the triaxial arrange obtains fully lubricated.

Description

Triaxial derailleur and new forms of energy car

Technical Field

The utility model relates to a transmission technical field especially relates to a triaxial derailleur and new forms of energy car.

Background

The transmission is an important transmission of a vehicle. A large percentage of transmission failures are caused by poor lubrication based on after-market statistics of the automobile. Because the inside of the speed changer is mostly provided with gears and bearings rotating at high speed, sufficient lubrication is a necessary condition for ensuring the service life of the speed changer.

In the lubrication design of the speed changer, a splash lubrication scheme with simple structure and low cost is generally adopted, and the scheme mainly depends on oil stirring of the gears, so that splashed lubricating oil reaches the positions of bearings and gears in the speed changer to realize lubrication; through research design and verification of a splash lubrication system for years in the industry, the requirements on lubrication of bearings and gears in the conventional mechanical transmission can be basically met; however, for a three-shaft transmission in which input and output shafts are sleeved and coaxially arranged, the lubrication condition of the intermediate bearing is poor, and lubrication failure sometimes occurs. For example, patent publication No. CN201884574U discloses a three-shaft type transmission for an automobile, which includes a first shaft, a second shaft and an intermediate shaft, wherein the first shaft and the second shaft are coaxially arranged, and the intermediate shaft and the first shaft and the second shaft are arranged in parallel. By adopting the arrangement mode, lubricating oil is not easy to flow into the bearing positioned in the middle position, so that the bearing lubricating effect at the position is poor, and the lubricating requirement of the speed reducer cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a triaxial derailleur and new forms of energy car for the bearing of the derailleur intermediate position of solving current triaxial and arranging can not obtain fully lubricated technical problem.

The utility model adopts the technical proposal that:

in a first aspect, the present invention provides a three-axis transmission, including: the oil guide device comprises an input shaft, an output shaft, a shaft sleeve, a first bearing and an intermediate shaft, wherein the input shaft and the output shaft are coaxially arranged, the output shaft is sleeved on the input shaft through the first bearing, the first bearing is positioned at one end of the input shaft inserted into the output shaft, the intermediate shaft is arranged in parallel with the input shaft and/or the output shaft, the shaft sleeve is sleeved at one end of the input shaft close to the first bearing, an oil guide channel is formed between the shaft sleeve and the input shaft, and the oil guide channel is provided with a first opening facing the first bearing and a second opening facing the outer side of the radial direction of the input bearing.

Preferably, the outer surface of the input shaft is provided with a plurality of grooves which are sunken towards the axis direction of the input shaft, the second opening is located on the shaft sleeve at a position corresponding to the grooves, the grooves penetrate through one end surface of the output shaft towards the first bearing along the axial direction of the input shaft, the end surface and the shaft sleeve enclose to form the first opening, and the width of the second opening is smaller than that of the grooves.

Preferably, the width of the groove towards the end of the first bearing is greater than the width of the end of the groove away from the first bearing.

Preferably, the oil guide passage is at least a plurality of which are arranged in the circumferential direction of the input shaft.

Preferably, the oil guide passages are rotationally symmetrical about the axis of the input shaft as a rotation center.

Preferably, the second opening is a quadrangular opening.

Preferably, the output shaft includes a first inner bore provided in an axial direction of the input shaft and a first oil guide hole provided in a radial direction of the input shaft, the first oil guide hole communicating with the first inner bore.

Preferably, the gear transmission device further comprises a first input gear, a first output gear, a second output gear, a first intermediate gear, a second intermediate gear, a third intermediate gear and a synchronizer, wherein the first input gear and the input shaft are of an integrated structure, the first output gear and the second output gear are mounted on the output shaft, the first intermediate gear, the second intermediate gear, the third intermediate gear and the fourth intermediate gear are mounted on the intermediate shaft, the first input gear is meshed with the first intermediate gear, the first output gear is meshed with the second intermediate gear, the second output gear is meshed with the third intermediate gear, and the synchronizer is located between the second intermediate gear and the third intermediate gear.

Preferably, the gear transmission mechanism further comprises a second bearing, wherein the second bearing is located at the axial position of the first output gear, and the first bearing is located at the axial position of the second output gear.

In a second aspect, the utility model provides a new forms of energy car, including the first aspect triaxial derailleur.

Has the beneficial effects that: the utility model discloses a triaxial derailleur and new forms of energy car make the output shaft pass through first bearing cover is established on the input shaft, at this moment first bearing is located the one end that the input shaft inserted in the output shaft. The utility model discloses let the axle sleeve cover establish the input shaft is close to the one end of primary shaft holds lets the axle sleeve with be formed with between the input shaft and lead the oil passageway, should lead the oil passageway and have the orientation the first opening of primary shaft holds and the second opening towards the outside of the radial direction of input bearing. After the lubricating oil on the surface of the input shaft flows into the oil guide channel from the second opening, the lubricating oil flows into the position of the first bearing from the first opening, so that the first bearing can be sufficiently lubricated.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.

Fig. 1 is a schematic three-dimensional structure diagram of a three-axis transmission of the present invention;

fig. 2 is a cross-sectional view of the coaxial arrangement of the input shaft and the output shaft of the present invention;

fig. 3 is an exploded view of the three-axis transmission of the present invention;

fig. 4 is a three-dimensional structure view of the shaft sleeve of the present invention after being assembled on the input shaft;

fig. 5 is a three-dimensional structure diagram of the input shaft of the present invention;

fig. 6 is a three-dimensional structure diagram of the shaft sleeve of the present invention.

Parts and numbers in the drawings:

the transmission comprises an input shaft 10, a groove 11, a first input gear 12, an output shaft 20, a first inner hole 21, a first oil guide hole 22, a first output gear 23, a second output gear 24, an intermediate shaft 30, a first intermediate gear 31, a second intermediate gear 32, a third intermediate gear 33, a shaft sleeve 40, a quadrilateral hole 41, a first bearing 50, a second bearing 60, an oil guide channel 70, a first opening 71, a second opening 72 and a synchronizer 80.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.

Example 1

As shown in fig. 1 and 3, the present embodiment provides a three-shaft transmission including: the oil-saving clutch comprises an input shaft 10, an output shaft 20, a shaft sleeve 40, a first bearing 50 and an intermediate shaft 30, wherein the input shaft 10 and the output shaft 20 are coaxially arranged, the output shaft 20 is sleeved on the input shaft 10 through the first bearing 50, the first bearing 50 is positioned at one end of the input shaft 10 inserted into the output shaft 20, the intermediate shaft 30 is arranged in parallel with the input shaft 10 and/or the output shaft 20, the shaft sleeve 40 is sleeved at one end of the input shaft 10 close to the first bearing 50, an oil guide channel 70 is formed between the shaft sleeve 40 and the input shaft 10, and the oil guide channel 70 is provided with a first opening 71 facing the first bearing 50 and a second opening 72 facing the outer side of the input shaft 10 in the radial direction. The input shaft 10 and the intermediate shaft 30 are in driving connection via a meshing gear set, and the intermediate shaft 30 and the output shaft 20 are in driving connection via a meshing gear set.

In the present embodiment, the power generated by the automobile power device is transmitted to the input shaft 10, then transmitted to the intermediate shaft 30 by the input shaft 10, then transmitted to the output shaft 20 by the intermediate shaft 30, and finally transmitted to the automobile rear axle by the output shaft 20. The aforementioned automotive power plant includes, but is not limited to, an engine and an electric machine. In the present embodiment, the input shaft 10 and the output shaft 20 are coaxially arranged, that is, the axis of the input shaft 10 and the axis of the output shaft 20 coincide. In the embodiment, the output shaft 20 is sleeved on the input shaft 10, and a part of the input shaft 10 enters the output shaft 20. By adopting the mode, the structure of the shafting can be more compact, so that the space of the speed reducer is saved. As shown in fig. 2, in this embodiment, an inner hole is provided in the output shaft 20, and a part of the input shaft 10 is inserted into the inner hole of the output shaft 20. In addition, the present embodiment further provides a first bearing 50, and the rotatable connection is formed between the input shaft 10 and the output shaft 20 through the first bearing 50. Wherein the first bearing 50 is located at one end of the input shaft 10 inserted into the output shaft 20, which can provide a good support between the input shaft 10 and the output shaft 20. In practice, the first bearing may be supported by the inner hole of the output shaft 20 and the outer wall of the end of the input shaft 10. Thus, the input shaft 10 and the output shaft 20 are coaxially arranged and can rotate relative to each other, and can support each other. After the input shaft 10 and the output shaft 20 are coaxially arranged, in order to facilitate the transmission of the input shaft 10 and the intermediate shaft 30 and also facilitate the transmission of the intermediate shaft 30 and the output shaft 20, the intermediate shaft 30 is arranged in parallel with the input shaft 10 and/or the output shaft 20 in the embodiment. I.e., the axis of the intermediate shaft 30 is parallel to the axis of the input shaft 10 or the axis of the output shaft 20. With the foregoing arrangement, the input shaft 10 and the output shaft 20 can then be relatively rotated at high speed by the first bearing 50, but since the first bearing 50 is located at the middle position (middle position in the axial direction) of the shafting composed of the input shaft 10 and the output shaft 20 and is located inside the output shaft 20, it is difficult for the bearings to be sufficiently lubricated by the lubricating oil.

As shown in fig. 2 and 4, in this embodiment, one or more oil guide channels 70 are formed between the shaft sleeve 40 and the input shaft 10 by sleeving the shaft sleeve 40 on one end of the input shaft 10 close to the first bearing 50. These oil guide passages 70 are located near the first bearing 50 for guiding the lubricating oil to the first bearing 50. The oil guide passage 70 is provided with a first opening 71 facing the first bearing 50 and a second opening 72 facing the outside in the radial direction of the input shaft 10 bearing. The lubricant oil flowing to the surface of the input shaft 10 can flow into the oil guide channel 70 through the second opening 72, and the lubricant oil is left from the first opening 71 of the oil guide channel 70 and flows to the first bearing 50, so that more lubricant oil is guided to the position of the first bearing 50 by the oil guide channel 70, and the first bearing 50 is sufficiently lubricated. In order to allow more lubrication oil to be introduced to the location of the first bearing 50, in the present embodiment, the end of the oil guide passage 70 remote from the first opening 71 is closed.

In addition, since the shaft sleeve 40 is sleeved on one end of the input shaft 10 close to the first bearing 50, when the input shaft 10 rotates at a high speed, the lubricating oil in the oil guide channel 70 can be blocked by the shaft sleeve 40, and cannot be thrown away from the oil guide channel 70 due to the centrifugal force generated by the rotation of the input shaft 10, so that more lubricating oil can be stored in the oil guide channel 70, and the first bearing 50 can be lubricated more fully. Since the oil guide passage 70 is formed by the sleeve 40 and the input shaft 10, the structure constituting the oil guide passage 70 is divided into two parts, which are respectively provided on the sleeve 40 and the input shaft 10. Therefore, the shaft sleeve 40 and the input shaft 10 can be processed on the basis of the original structures, the part of the structure of the oil guide channel 70 on the shaft sleeve 40 and the part of the structure of the oil guide channel 70 on the input shaft 10 are respectively processed, and then the two parts of the structures are combined to obtain the complete oil guide channel 70 through accurate assembly, so that the processing efficiency can be obviously improved, and the processing cost is lower.

As shown in fig. 5, in the present embodiment, the outer surface of the input shaft 10 is provided with a plurality of grooves 11 recessed toward the axial direction of the input shaft 10, the second opening 72 is located at a position corresponding to the grooves 11 on the sleeve 40, the grooves 11 penetrate through one end surface of the output shaft 20 facing the first bearing 50 in the axial direction of the input shaft 10, the end surface and the sleeve 40 enclose the first opening 71, and the width of the second opening 72 is smaller than the width of the grooves 11. The oil guiding structure in this embodiment is composed of the groove 11 provided on the input shaft 10 and the second opening 72 provided on the sleeve 40. In which a groove 11 is provided on an outer surface of the input shaft 10, formed by recessing the outer surface of the input shaft 10 toward the center of the input shaft 10. During manufacturing, the groove 11 can be obtained by machining or forging. The sleeve 40 may be obtained by stamping or injection molding. The recess 11 extends from a position on the input shaft 10 in the axial direction of the input shaft 10 to a position on the first bearing 50, up to a first end face encountered by the recess 11, on which end face a recess is formed, which recess and the sleeve 40 enclose the first opening 71. In the embodiment, since the width of the second opening 72 is smaller than the width of the groove 11, the sleeve 40 can shield a part of the groove 11, so that the lubricating oil can enter the oil guide channel 70 through the second opening 72, and the amount of the lubricating oil thrown out due to the centrifugal force can be reduced under the condition that the input shaft 10 rotates, so as to store more lubricating oil in the oil guide channel 70.

As shown in fig. 5, in the present embodiment, the groove 11 is defined by a first side wall, a second side wall, a third side wall and a bottom wall. The first side wall and the second side wall are oppositely arranged, one end of the third side wall is connected with one end, away from the first opening 71, of the first side wall, the other end of the third side wall is connected with one end, away from the first opening 71, of the second side wall, and a notch used for forming the first opening 71 is reserved at one end, away from the third side wall, of the first side wall and the second side wall. The bottom wall is connected with one ends of the first side wall, the second side wall and the third side wall close to the axle center of the input shaft 10. The ends of the first, second and third side walls far from the axis of the input shaft 10 are free ends, so that the ends of the first, second and third side walls far from the axis of the input shaft 10 are free ends to form a notch corresponding to the second opening 72 of the shaft sleeve 40. As shown in fig. 6, in the present embodiment, the sleeve 40 has a cylindrical shape, and the second opening 72 has a quadrangular shape formed in a side wall of the cylindrical shape. The sleeve 40 is simply machined in the manner described above so that the sleeve 40 and the groove 11 of the input shaft 10 enclose a suitable oil guiding channel 70. Wherein the groove 11 of the input shaft 101 can be obtained by mechanical processing or forging forming; the quadrilateral opening of the shaft sleeve 40 is realized by stamping, injection molding or other modes;

as a preferable implementation manner, in the present embodiment, the width of the groove 11 at the end facing the first bearing 50 is greater than the width at the end far away from the first bearing 50. Wherein the end of the recess 11 facing said first bearing 50, i.e. the end of the recess 11 and the sleeve 40 forming the first opening 71. Since the width of the groove 11 toward the end of the first bearing 50 is larger, the lubricating oil can flow more smoothly toward the first bearing 50 when the input shaft 10 rotates in the forward or reverse direction. As a preferred embodiment, in the present embodiment, the width of the groove 11 gradually increases from the end far away from the first bearing 50 to the end close to the first bearing 50. In the foregoing manner, the flow of the lubricant in the groove 11 toward the first bearing 50 is facilitated when the input shaft 10 rotates.

In the present embodiment, the oil guide passage 70 is provided in plurality, and the plurality of oil guide passages 70 are provided in the circumferential direction of the input shaft 10. The plurality means two or more. The present embodiment arranges the plurality of oil guide passages 70 at different circumferential positions of the input shaft 10, so that the lubricating oil at each position of the surface of the input shaft 10 can flow to the first bearing 50 and the lubricating oil at each position of the first bearing 50 can sufficiently flow. In this embodiment, a plurality of the oil guide passages 70 may be provided to be rotationally symmetrical about the axis of the input shaft 10. By arranging the oil guide passage 70 in the rotationally symmetrical manner, the lubricating oil can uniformly flow into the first bearing 50 in all directions, thereby improving the overall lubricating effect on the first bearing 50. In order to ensure the accuracy of the position of the oil guide passage 70, in the present embodiment, the sleeve 40 may be interference fitted to the input shaft 10 through the inner hole, and the quadrangular openings and the grooves 11 on the input shaft 10 and the sleeve 40 are ensured to have a centering fit.

In the present embodiment, the output shaft 20 includes a first inner bore 21 disposed along the axial direction of the input shaft 10 and a first oil guide hole 22 disposed along the radial direction of the input shaft 10, and the first oil guide hole 22 communicates with the first inner bore 21. So that the lubricating oil flows into the first bore 21 of the output shaft 20 through the oil guide holes arranged on the output shaft 20.

As shown in fig. 1, in the present embodiment, the three-shaft transmission further includes a first input gear 12, a first output gear 23, a second output gear 24, a first intermediate gear 31, a second intermediate gear 32, a third intermediate gear 33, and a synchronizer, the first input gear 12 is integrated with the input shaft 10, the first output gear 23 and the second output gear 24 are mounted on the output shaft 20, the first intermediate gear 31, the second intermediate gear 32, and the third intermediate gear 33 are mounted on the intermediate shaft 30, the first input gear 12 is engaged with the first intermediate gear 31, the first output gear 23 is engaged with the second intermediate gear 32, the second output gear 24 is engaged with the third intermediate gear 33, and the synchronizer is located between the second intermediate gear 32 and the third intermediate gear 33.

The first intermediate gear 31 is fixedly connected with the intermediate shaft 30, the power of the input shaft 10 is transmitted to the first intermediate gear 31 through the first input gear 12, and the first intermediate gear 31 transmits the power to the intermediate shaft 30. The second intermediate gear 32 and the third intermediate gear 33 are fitted over the intermediate shaft 30 via needle bearings. When the synchronizer is combined with the second intermediate gear 32, the intermediate shaft 30 drives the second intermediate gear 32 to synchronously rotate, and the power of the intermediate shaft 30 is transmitted to the output shaft 20 by the second intermediate gear 32; when the synchronizer is combined with the third intermediate gear 33, the intermediate gear 30 drives the third intermediate gear 33 to synchronously rotate, and the power of the intermediate gear 30 is transmitted to the output shaft 20 by the third intermediate gear 33.

As shown in fig. 2, the three-shaft transmission of the present embodiment further includes a second bearing 60, the second bearing 60 is located at an axial position where the first output gear 23 is located, and the first bearing 50 is located at an axial position where the second output gear 24 is located. In the embodiment, the first bearing 50 and the second bearing 60 cooperate to support the input shaft 10 and realize the rotation of the input shaft 10 relative to the output shaft 20, so that the whole shafting can be kept stable in high-speed rotation.

Example 2

The embodiment provides a new energy vehicle which comprises the three-shaft transmission in the embodiment.

As described above, only the specific embodiments of the present invention are provided, and those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working processes of the system, the module and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.

Claims (10)

1. A three-shaft transmission, comprising: the oil guide device comprises an input shaft, an output shaft, a shaft sleeve, a first bearing and an intermediate shaft, wherein the input shaft and the output shaft are coaxially arranged, the output shaft is sleeved on the input shaft through the first bearing, the first bearing is positioned at one end of the input shaft inserted into the output shaft, the intermediate shaft is arranged in parallel with the input shaft and/or the output shaft, the shaft sleeve is sleeved at one end of the input shaft close to the first bearing, an oil guide channel is formed between the shaft sleeve and the input shaft, and the oil guide channel is provided with a first opening facing the first bearing and a second opening facing the outer side of the radial direction of the input bearing.

2. The three-shaft transmission according to claim 1, wherein the outer surface of the input shaft is provided with a plurality of grooves recessed in the axial direction of the input shaft, the second opening is located on the sleeve at a position corresponding to the grooves, the grooves penetrate through an end surface of the output shaft facing the first bearing in the axial direction of the input shaft, the end surface and the sleeve enclose the first opening, and the width of the second opening is smaller than the width of the grooves.

3. The three-shaft transmission of claim 2, wherein the groove has a greater width toward an end of the first bearing than an end thereof distal from the first bearing.

4. The three-shaft transmission of claim 1, wherein the oil guide passage is plural, and plural oil guide passages are provided in a circumferential direction of the input shaft.

5. The three-shaft transmission of claim 4, wherein the plurality of oil guide passages are rotationally symmetric about the axis of the input shaft as a center of rotation.

6. The three-axle transmission of claim 1, wherein the bushing is cylindrical and the second opening is a quadrilateral opening in a side wall of the cylinder.

7. The three-shaft transmission of claim 1, wherein the output shaft includes a first inner bore disposed in an axial direction of the input shaft and a first oil guide hole disposed in a radial direction of the input shaft, the first oil guide hole communicating with the first inner bore.

8. The three-shaft transmission of any one of claims 1 to 7, further comprising a first input gear, a first output gear, a second output gear, a first intermediate gear, a second intermediate gear, a third intermediate gear, and a synchronizer, the first input gear being of unitary construction with the input shaft, the first output gear and the second output gear being mounted on the output shaft, the first intermediate gear, the second intermediate gear, and the third intermediate gear being mounted on the countershaft, the first input gear being in engagement with the first intermediate gear, the first output gear being in engagement with the second intermediate gear, the second output gear being in engagement with the third intermediate gear, the synchronizer being located between the second intermediate gear and the third intermediate gear.

9. The three-shaft transmission of claim 8, further comprising a second bearing located at an axial location where the first output gear is located, the first bearing being located at an axial location where the second output gear is located.

10. New energy vehicle, characterized in that it comprises a three-shaft transmission according to any of claims 1 to 9.

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