CN210830382U - Gearbox for vehicle and vehicle with gearbox - Google Patents

Abstract

The utility model discloses a vehicle that is used for gearbox of vehicle and has it, the gearbox includes: a transmission housing, the transmission housing comprising: a front housing and a rear housing; an input shaft, the input shaft comprising: interior input shaft and cover are established outer input shaft on the interior input shaft, interior input shaft rotationally sets up on the back casing, outer input shaft rotationally sets up on the procapsid, be provided with on the interior input shaft with the rear end face of outer input shaft is just right and the spaced face of dodging. According to the utility model discloses a do not produce the axial force between interior input shaft in the gearbox and the outer input shaft, the axial dimensions of gearbox is little, and the transmission loss between interior input shaft and the outer input shaft is little.

Description

Gearbox for vehicle and vehicle with gearbox

Technical Field

The utility model belongs to the technical field of the car and specifically relates to a vehicle that is used for gearbox of vehicle and has it.

Background

In the related art, the inner input shaft and the outer input shaft are both sleeved with the bevel gears, and the inner input shaft and the outer input shaft are in direct contact with each other.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a transmission, in which no axial force is generated between an inner input shaft and an outer input shaft, an axial dimension of the transmission is small, and a transmission loss between the inner input shaft and the outer input shaft is small.

The utility model also provides a vehicle of having above-mentioned gearbox.

According to the utility model discloses a gearbox for vehicle includes: a transmission housing, the transmission housing comprising: a front housing and a rear housing; an input shaft, the input shaft comprising: interior input shaft and cover are established outer input shaft on the interior input shaft, interior input shaft rotationally sets up on the back casing, outer input shaft rotationally sets up on the procapsid, be provided with on the interior input shaft with the rear end face of outer input shaft is just right and the spaced face of dodging.

According to the utility model discloses a gearbox for vehicle, through rotationally setting up interior input shaft on the casing of back, with outer input shaft rotationally set up in the front on the casing, and set up the face of dodging with outer input shaft rear end face spaced apart including on the input shaft, input shaft and outer input shaft can not produce the axial force at driven in-process in making, thrust bearing has been saved, the transmission loss of interior input shaft and outer input shaft has been reduced, the transmission efficiency of gearbox has been improved, the axial dimensions of input shaft is little simultaneously, the gearbox is compacter.

According to the utility model discloses an embodiment, be provided with interior input shaft gear on the interior input shaft, the leading flank structure of interior input shaft gear does dodge the face.

According to the utility model discloses an embodiment, be provided with on the leading flank of interior input shaft gear towards the sunken breach of dodging of rear side, the internal face structure of dodging the breach does dodge the face.

According to the utility model discloses an embodiment, interior input shaft gear includes: the first gear and the inner input shaft are integrally formed, and the second gear is welded and fixed on the first gear and provided with the avoiding surface.

According to the utility model discloses an embodiment, interior input shaft passes through first bearing and sets up on the back casing, outer input shaft passes through second bearing and sets up on the procapsid.

According to the utility model discloses an embodiment, interior input shaft gear still includes: the rear end of the inner input shaft is provided with a first bolt, and an inner ring of the first bearing is clamped between the third gear and a bolt head of the first bolt.

According to the utility model discloses an embodiment, be provided with first bearing plate on the transmission housing, first bearing plate with the back casing is spaced apart, the outer lane at least part clamp of first bearing is established first bearing plate with between the back casing.

According to the utility model discloses an embodiment, be provided with the shaft shoulder on the outer input shaft and with the snap ring that the shaft shoulder interval set up, the inner circle clamp of second bearing is established the shaft shoulder with between the snap ring.

According to the utility model discloses an embodiment, be provided with the second bearing plate on the transmission housing, the second bearing plate with the procapsid is spaced apart, the outer lane at least part clamp of second bearing is established the second bearing plate with between the procapsid.

The vehicle according to the present invention is briefly described below.

According to the utility model discloses a be provided with the gearbox of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with the gearbox of above-mentioned embodiment on the vehicle, consequently the axial dimensions of the gearbox of this vehicle is little, and power transmission system is compacter, and the efficiency of gearbox is higher, and the economic performance of vehicle is better.

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 view of a transmission according to the present invention.

Reference numerals:

the transmission case 100 is provided with a transmission case,

an inner input shaft 110, an inner input shaft gear 111, an escape notch 111a, a first gear 112, a second gear 113, a third gear 114,

the outer input shaft 120, the shoulder 121,

the location of the first bearing 130, the second bearing 140,

the structure comprises an avoidance surface 101, a first bolt 102, a first bearing plate 103, a second bearing plate 104, a snap ring 105, a front shell 106 and a rear shell 107.

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 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 exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A transmission 100 for a vehicle according to an embodiment of the present invention is described below with reference to fig. 1.

According to the utility model discloses a gearbox 100 includes gearbox 100 casing and input shaft, and wherein gearbox 100 casing includes procapsid 106 and back casing 107, and the input shaft includes that interior input shaft 110 establishes outer input shaft 120 on input shaft 110 including with the cover, and interior input shaft 110 rotationally sets up on back casing 107, and outer input shaft 120 rotationally sets up in the front on casing 106, is provided with on the interior input shaft 110 just to just and the spaced face 101 of dodging with the rear end face of outer input shaft 120.

In the related art, helical gears are sleeved on the inner input shaft 110 and the outer input shaft 120, and the inner input shaft 110 is in direct contact with the outer input shaft 120, so that in the transmission process, because the helical gears generate component force in the axial direction, interaction is generated between the inner input shaft 110 and the outer input shaft 120, the inner input shaft 110 and the outer input shaft 120 need to be spaced by using a thrust bearing, the whole size of the input shaft is large, and transmission loss is generated between the inner input shaft and the outer input shaft 120.

According to the utility model discloses a gearbox 100 for vehicle, through with interior input shaft 110 rotationally set up on back casing 107, with outer input shaft 120 rotationally set up in the front casing 106, make interior input shaft 110 and outer input shaft 120 transmit respectively to the procapsid 106 and back casing 107 in the produced axial force of transmission in-process, and separate at axial between interior input shaft 110 and the outer input shaft 120, make unable transmission axial force between interior input shaft 110 and the outer input shaft 120, with the transmission loss who avoids friction between interior input shaft 110 and the outer input shaft 120 and produce between interior input shaft 110 and the outer input shaft 120.

Specifically, the inner input shaft 110 is provided with the avoidance surface 101 facing the rear end surface of the outer input shaft 120, the avoidance surface 101 is spaced from the rear end of the outer input shaft 120, so that the inner input shaft 110 is prevented from being axially contacted with the outer input shaft 120, axial forces generated by the inner input shaft 110 and the outer input shaft 120 in the transmission process are applied to respective fixed shells, and the inner input shaft 110 and the outer input shaft 120 do not axially move relative to each other, so that the inner input shaft 110 and the outer input shaft 120 do not generate loss in the transmission process, and the transmission efficiency of the transmission case 100 is improved.

Further, a thrust bearing is not provided between the inner input shaft 110 and the outer input shaft 120, so that the arrangement space between the inner input shaft 110 and the outer input shaft 120 is sufficient, the axial dimension of the input shaft can be reduced, and the transmission case 100 is more compact.

According to the utility model discloses a gearbox 100 for vehicle, through with interior input shaft 110 rotationally set up on rear housing 107, with outer input shaft 120 rotationally set up in the front on casing 106, and set up on interior input shaft 110 and the spaced face 101 of dodging of outer input shaft 120 rear end face, make interior input shaft 110 and outer input shaft 120 can not produce the axial force at driven in-process, thrust bearing has been saved, the transmission loss of interior input shaft 110 and outer input shaft 120 has been reduced, the transmission efficiency of gearbox 100 has been improved, the axial dimension of input shaft is little simultaneously, gearbox 100 is compacter.

According to the utility model discloses an embodiment, be provided with interior input shaft gear 111 on the interior input shaft 110, the at least part structure of the leading flank of interior input shaft gear 111 is for dodging face 101, interior input shaft gear 111 cover is established on interior input shaft 110, interior input shaft gear 110 drives interior input shaft gear 111 and rotates, the one side of interior input shaft gear 111 towards the front side is provided with above-mentioned face 101 of dodging, so that interior input shaft gear 111 dodges outer input shaft 120, in order to avoid taking place the contact between outer input shaft 120 and the interior input shaft gear 111, ensure that can not produce the axial force between interior input shaft 110 and the outer input shaft 120, guarantee the transmission stability of interior input shaft 110 and outer input shaft 120, improve interior input shaft 110 and the respective transmission efficiency of outer input shaft 120.

According to the utility model discloses an embodiment, be provided with the sunken breach 111a of dodging towards the rear side on the leading flank of interior input shaft gear 111, the internal wall structure of dodging breach 111a is for dodging face 101, be provided with the sunken breach 111a of dodging towards the rear side on interior input shaft gear 111, make the part of the tip of outer input shaft 120 can stretch into dodge breach 111a in, make outer input shaft 120 and interior input shaft 110 at least partial coincidence, can make the axial of input shaft compacter, the axial dimensions of input shaft has further been reduced, the volume of gearbox 100 has been reduced.

According to the utility model discloses an embodiment, interior input shaft gear 111 includes adjacent first gear 112 and second gear 113, first gear 112 and interior input shaft 110 integrated into one piece, and second gear 113 welded fastening is provided with on first gear 112 and the second gear 113 and dodges face 101.

The first gear 112 and the inner input shaft 110 are integrally formed to improve the connection reliability between the first gear 112 and the inner input shaft 110, the second gear 113 and the first gear 112 are fixedly welded to guarantee the matching reliability between the second gear 113 and the inner input shaft 110, the avoidance surface 101 is arranged on the second gear 113 to enable the avoidance surface 101 to be machined on the second gear 113, and after machining is completed, the second gear 113 and the first gear 112 are welded to reduce the machining difficulty of the avoidance surface 101.

According to an embodiment of the present invention, the inner input shaft 110 is fixed to the rear housing 107 by a first bearing 130, and the outer input shaft 120 is fixed to the front housing 106 by a second bearing 140. The first bearing 130 may ensure reliable engagement between the inner input shaft 110 and the rear housing 107, such that one end of the first bearing 130 is rotationally stable, and the second bearing 140 may ensure reliable engagement between the outer input shaft 120 and the front housing 106, such that one end of the second bearing 140 is rotationally stable. The first bearing 130 and the second bearing 140 can effectively transmit the axial force generated by the inner input shaft 110 and the outer input shaft 120 to the housing while ensuring the stable rotation of the inner input shaft 110 and the input shaft 120, respectively, and ensure the stable rotation of the inner input shaft 110 and the outer input shaft 120.

According to the utility model discloses an embodiment, interior input shaft 110 still includes third gear 114, third gear 114 cover is established at interior input shaft 110 and is located the position of neighbouring interior input shaft 110 rear end, the rear end of interior input shaft 110 is provided with first bolt 102, the inner circle clamp of first bearing 130 is established between third gear 114 and the bolt head of first bolt 102, the trailing flank of third gear 114 and bolt head carry on spacingly to the inner circle of first bearing 130 in front and back two directions respectively to avoid the inner circle of first bearing 130 to move on interior input shaft 110, make interior input shaft 110 link to each other with the inner circle of first bearing 130 steadily.

According to an embodiment of the utility model, be provided with first bearing plate 103 on the gearbox 100 casing, first bearing plate 103 is spaced apart from rear housing 107, and the outer lane of first bearing 130 is at least partly pressed from both sides and is established between first bearing plate 103 and rear housing 107. The first bearing plate 103 may be fixed to the rear housing 107 by a fastener, the first bearing plate 103 is disposed on a front side of an outer ring of the first bearing 130, and the first bearing plate 103 and the rear housing 107 limit the outer ring of the first bearing 130 in both front and rear directions, so that the outer ring of the first bearing 130 is kept stable.

According to the utility model discloses an embodiment, be provided with on the outer input shaft 120 shaft shoulder 121 and with the snap ring 105 of shaft shoulder 121 interval setting, the inner circle clamp of second bearing 140 is established between shaft shoulder 121 and snap ring 105, be provided with on the periphery wall of outer input shaft 120 with snap ring 105 complex draw-in groove, establish the interior circle cover of second bearing 140 after the shaft shoulder 121 cooperation of outer input shaft 120 and outer input shaft 120, cooperate the draw-in groove on the periphery wall of snap ring 105 and outer input shaft 120, in order to restrict the removal of second bearing 140 inner circle, restrict second bearing 140's inner circle and preceding and rear side through snap ring 105 and shaft shoulder 121, make second bearing 140's inner circle and outer input shaft 120 cooperate steadily.

According to an embodiment of the present invention, a second bearing plate 104 is disposed on the housing of the transmission 100, the second bearing plate 104 is spaced apart from the front housing 106, and at least a portion of the outer ring of the second bearing 140 is sandwiched between the second bearing plate 104 and the front housing 106. The second bearing plate 104 is fixed to the front housing 106, the second bearing plate 104 may be fixed to the front housing 106 by a fastener, an outer ring of the second bearing 140 is disposed at a front side of the second bearing plate 104, the outer ring of the second bearing 140 is limited by the second bearing plate 104 and the housing in the front-rear direction, and when an axial force is generated by the outer input shaft 120, the axial force may be transmitted to the front housing 106 through the second bearing plate 104 or directly transmitted to the front housing 106, so as to ensure axial support to the outer input shaft 120.

The vehicle according to the present invention is briefly described below.

According to the utility model discloses a be provided with the gearbox 100 of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with the gearbox 100 of above-mentioned embodiment on the vehicle, consequently the axial dimensions of gearbox 100 of this vehicle is little, and power transmission system is compacter, and gearbox 100's transmission efficiency is higher, and the economic performance of vehicle is better.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship 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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A transmission for a vehicle, comprising:

a transmission housing, the transmission housing comprising: a front housing and a rear housing;

an input shaft, the input shaft comprising: interior input shaft and cover are established outer input shaft on the interior input shaft, interior input shaft rotationally sets up on the back casing, outer input shaft rotationally sets up on the procapsid, be provided with on the interior input shaft with the rear end face of outer input shaft is just right and the spaced face of dodging.

2. The transmission for a vehicle according to claim 1, wherein an inner input shaft gear is provided on the inner input shaft, and a front side surface of the inner input shaft gear is configured as the escape surface.

3. The transmission for a vehicle according to claim 2, wherein an avoidance gap that is recessed toward a rear side is provided on a front side surface of the inner input shaft gear, and an inner wall surface of the avoidance gap is configured as the avoidance surface.

4. A gearbox for a vehicle according to claim 2 or 3, characterised in that the inner input shaft gear comprises: the first gear and the inner input shaft are integrally formed, and the second gear is welded and fixed on the first gear and provided with the avoiding surface.

5. The transmission for a vehicle of claim 2, wherein said inner input shaft is disposed on said rear housing through a first bearing and said outer input shaft is disposed on said front housing through a second bearing.

6. The transmission for a vehicle of claim 5, wherein said inner input shaft gear further comprises: the rear end of the inner input shaft is provided with a first bolt, and an inner ring of the first bearing is clamped between the third gear and a bolt head of the first bolt.

7. The transmission for a vehicle of claim 5, wherein a first bearing plate is provided on the transmission housing, the first bearing plate being spaced apart from the rear housing, the outer race of the first bearing being at least partially sandwiched between the first bearing plate and the rear housing.

8. The transmission for a vehicle of claim 5, wherein said outer input shaft is provided with a shoulder and a snap ring spaced from said shoulder, and said inner race of said second bearing is sandwiched between said shoulder and said snap ring.

9. The transmission for a vehicle of claim 5, wherein a second bearing plate is provided on the transmission housing, the second bearing plate being spaced from the front housing, the outer race of the second bearing being at least partially sandwiched between the second bearing plate and the front housing.

10. A vehicle characterized by comprising the transmission for a vehicle according to any one of claims 1 to 9.

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