CN215634877U - End cover, gearbox and vehicle - Google Patents
End cover, gearbox and vehicle Download PDFInfo
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- CN215634877U CN215634877U CN202121030810.3U CN202121030810U CN215634877U CN 215634877 U CN215634877 U CN 215634877U CN 202121030810 U CN202121030810 U CN 202121030810U CN 215634877 U CN215634877 U CN 215634877U
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- mounting hole
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- oil seal
- seal mounting
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Abstract
The utility model provides an end cover, a gearbox and a vehicle, wherein the end cover comprises: the oil seal device comprises a body, a shaft hole, an oil seal mounting hole, an oil return groove and a transition part; the shaft hole is arranged on the body; the oil seal mounting hole is arranged along the circumferential direction of the shaft hole; the oil return groove extends from the side wall of the oil seal mounting hole to the direction far away from the oil seal mounting hole; the transition portion is arranged on the body, wherein the side wall of the oil seal mounting hole is connected with the inner wall of the oil return groove through the transition portion. The outer peripheral surface and the edge of the sealing device are prevented from being scratched, and the sealing effect of the sealing device is improved. Therefore, the deformation of the sealing device or the falling-off phenomenon of the material of the sealing device caused by scratching is further avoided, the normal operation of the gearbox and the input shaft is ensured, the phenomena that the sealing device deforms and extrudes the input shaft, the oil leakage of the gearbox or the impurities in the external environment enter the gearbox are reduced, the abrasion of the input shaft is reduced, and the precision of the internal parts of the gearbox is ensured.
Description
Technical Field
The utility model relates to the field of automobile gearboxes, in particular to an end cover, a gearbox and a vehicle.
Background
At present, a sealing device is arranged in an end cover of an input shaft in an automobile gearbox to ensure the relative tightness of the gearbox when the input shaft rotates and moves axially, so that lubricating oil in the gearbox cannot leak out, and impurities outside the gearbox are prevented from entering the gearbox.
In the related art, a sealing device is arranged in an end cover of an input shaft in an automobile gearbox, and in the process of installation or disassembly, the peripheral surface and the edge of the sealing device and the edge of an oil return groove of the end cover can generate a serious skin scraping phenomenon, so that the peripheral surface and the edge of the sealing device are scratched, and the sealing effect of the sealing device is further influenced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the utility model proposes an end cap.
A second aspect of the utility model proposes a gearbox.
A third aspect of the utility model proposes a vehicle.
In view of this, the first aspect of the present invention provides an end cap, comprising: body, shaft hole, oil blanket mounting hole, oil gallery and transition portion. The shaft hole is arranged on the body; the oil seal mounting hole is arranged along the circumferential direction of the shaft hole; the oil return groove extends from the side wall of the oil seal mounting hole to the direction far away from the oil seal mounting hole; the transition portion is arranged on the body, wherein the side wall of the oil seal mounting hole is connected with the inner wall of the oil return groove through the transition portion.
In this solution, the end cap includes: body, shaft hole, oil blanket mounting hole, oil gallery and transition portion. The body of end cover is the major structure of end cover, and the shaft hole sets up on the body of end cover, sets up along the axial direction of end cover for the input shaft of gearbox passes through the shaft hole, and body and shaft hole are also used for avoiding partly input shaft to expose in the external environment. The oil seal mounting hole is arranged on the body and is arranged along the circumferential direction of the shaft hole, and the circumferential surface of the side wall of the oil seal mounting hole keeps concentric with the shaft hole. When the sealing device is installed on the end cover, the sealing device is installed on the body of the end cover along the circumferential surface of the side wall of the oil seal installation hole, and the bottom surface and the circumferential surface of the side wall of the oil seal installation hole are matched with the sealing device. Still be provided with the oil gallery on the body, the oil gallery is extended to the direction of keeping away from the oil blanket mounting hole by the lateral wall of oil blanket mounting hole for the oil body circulation between sealing device position and the gearbox is inside, makes sealing device and the contact department of end cover and with the contact department of input shaft keep oil blanket and lubrication, the sealed and lubricated effect of reinforcing. The transition portion sets up on the body, and the lateral wall of oil blanket mounting hole is connected with the inner wall of oil gallery through transition portion. Specifically, the side wall of the oil seal mounting hole is connected with the inner wall of the oil return groove through the transition part, so that the sharp edge face at the joint is avoided, the outer peripheral face and the edge of the sealing device are prevented from being scratched when the sealing device is mounted or dismounted, and the sealing effect of the sealing device is improved. In addition, the transition part is connected with the side wall of the oil seal mounting hole and the inner wall of the oil return groove, so that a continuous and complete oil film can be formed on the surfaces of the transition part, the side wall of the oil seal mounting hole and the inner wall of the oil return groove, and the phenomenon that the oil film is broken due to the excessively sharp joint of the side wall of the oil seal mounting hole and the inner wall of the oil return groove is avoided. When the sealing device is installed or disassembled, the sealing device is in complete oil film contact with the surface of the transition part, the sealing device is prevented from being scratched with the side wall of the oil seal installation hole and the oil return groove, and the phenomenon that the sealing device deforms or the material of the sealing device falls off due to scratching is avoided, so that the normal operation of the gearbox and the input shaft is ensured, the phenomenon that the sealing device deforms and extrudes the input shaft, the oil leaks from the gearbox or impurities in the external environment enter the gearbox is reduced, the abrasion of the input shaft is reduced, and the precision of internal parts of the gearbox is ensured.
In addition, the end cover in the above technical solution provided by the present invention may further have the following additional technical features:
in one technical scheme of the utility model, the transition part extends from the side wall of the oil seal mounting hole to the inner wall of the oil return groove in an arc shape.
In this technical scheme, the transition portion is the arc by the lateral wall of oil blanket mounting hole to the inner wall of oil gallery and extends, because the lateral wall of transition portion connection oil blanket mounting hole and the inner wall of oil gallery, the transition portion is the arc and extends, can form continuous, complete oil film at transition portion and oil blanket mounting hole lateral wall, oil gallery inner wall surface, avoids making the oil film fracture because of the lateral wall of oil blanket mounting hole and the excessive acutely junction of the inner wall of oil gallery. When the sealing device is installed or disassembled, the sealing device is in contact with a complete oil film on the surface of the transition part, so that the phenomena of scratching of the sealing device, the side wall of the oil seal installation hole and the oil return groove and deformation of the sealing device or falling of materials of the sealing device caused by scratching are avoided.
In one aspect of the present invention, the transition portion is a chamfer or a fillet.
In this technical scheme, the transition portion is chamfer or fillet, thereby avoid the appearance of the sharp-pointed faceted pebble of oil blanket mounting hole lateral wall and oil gallery inner wall junction, avoid sealing device in installation and dismantlement in-process by the scratch, make oil blanket mounting hole lateral wall simultaneously, oil gallery inner wall surface can form continuous, complete oil film, sealing device is with complete oil film contact when contacting with oil blanket mounting hole side, the lubricity has been strengthened, avoid sealing device to be out of shape or self material drops because of the local atress inequality that is scraped and leads to, thereby guarantee the good operation of input shaft, the sealed of gearbox and the operation precision of gearbox internals.
In one aspect of the present invention, a height of the transition portion in an axial direction of the shaft hole is 0.5 mm or more and 2 mm or less.
In this technical scheme, the axial highly more than or equal to 0.5 millimeter of transition portion in the shaft hole to less than or equal to 2 millimeters, guarantee to have the circulation of appropriate amount of oil body between sealing device in the oil blanket mounting hole and the gearbox in order to guarantee sealing device's sealed and lubrication, avoid simultaneously under sealing device's the condition of damaging, it makes gearbox internals impaired to get into because of the too high impurity that leads to the large granule of transition portion, avoid the too big partial atress of transition portion to unbalance to lead to sealing device local deformation and influence the normal work of input shaft simultaneously.
In one technical scheme of the utility model, the oil return groove is arranged along the radial direction of the shaft hole.
In this technical scheme, the oil gallery sets up along the radial of shaft hole, and the oil gallery is extended to the direction of keeping away from the oil seal mounting hole by the lateral wall of oil seal mounting hole to the oil gallery sets up and extends along the radial of oilhole.
In one technical scheme of the utility model, the transition part is arranged between the bottom wall of the oil return groove and the side wall of the oil seal mounting hole.
In this technical scheme, the transition portion sets up between the diapire of oil gallery and the lateral wall of oil blanket mounting hole, thereby avoid the appearance of the sharp faceted pebble of oil blanket mounting hole lateral wall and oil gallery inner wall junction, avoid sealing device in installation and dismantlement in-process by the scratch, make oil blanket mounting hole lateral wall simultaneously, oil gallery inner wall surface can form continuous, complete oil film, sealing device contacts with complete oil film when contacting with oil blanket mounting hole side, the lubrication degree has been strengthened, avoid sealing device to be out of shape or self material drops because of the local atress inequality that is scraped and leads to, thereby guarantee the good operation of input shaft, the sealed of gearbox and the operation precision of gearbox internals.
A second aspect of the utility model provides a gearbox comprising the end cover of any one of the preceding claims, whereby the gearbox comprises all the benefits of the end cover of any one of the preceding claims.
The gearbox in the technical scheme provided by the utility model can also have the following additional technical characteristics: in one aspect of the present invention, a transmission includes: the device comprises a box body, an input shaft and a sealing ring. The end cover is connected with the box body; the input shaft is arranged in the shaft hole in a penetrating way; the sealing ring is embedded in the oil seal mounting hole and sleeved on the input shaft.
In the technical scheme, the box body is connected with the end cover, the input shaft penetrates through the shaft hole, and the sealing ring is embedded in the oil seal mounting hole and sleeved on the input shaft. The sealing washer is as sealing device, and the oil blanket mounting hole cooperation on sealing washer and the end cover is inlayed in the oil blanket mounting hole, and the input shaft is as the input shaft, and the sealing washer cover is located on the input shaft. When the sealing ring is installed on the end cover, the end cover is connected with the box body in a matched mode, the sealing ring ensures the sealing of the gearbox and prevents part of the input shaft from being exposed in the external environment, at the moment, the transition portion of the sealing ring, the side wall of the oil seal installation hole and the joint of the oil return groove are in contact with each other, sharp edge faces are avoided, the sealing ring is prevented from being scratched, and the good operation of internal parts of the gearbox and the input shaft is further guaranteed.
In one technical scheme of the utility model, the sealing ring is in interference fit with the oil seal mounting hole.
In the technical scheme, the sealing ring is in interference fit with the oil seal mounting hole. The sealing ring can generate certain pretightening force with the oil seal mounting hole due to interference fit after being embedded into the oil seal mounting hole of the end cover, so that the sealing ring is stably kept at the position of the oil seal mounting hole and cannot move along with the rotation and axial movement of the input shaft.
A third aspect of the utility model provides a vehicle comprising a gearbox according to any one of the preceding claims, whereby the vehicle comprises all the advantages of a gearbox according to any one of the preceding claims.
Additional aspects and advantages of the utility model 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 utility model.
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 shows an overall schematic view of an end cap according to one embodiment of the utility model;
FIG. 2 shows an enlarged view of a portion A of the overall schematic diagram of an end cap according to one embodiment of the utility model;
FIG. 3 illustrates a half-sectional view according to an embodiment of the present invention;
FIG. 4 illustrates an enlarged view of a half-section view, detail B, according to an embodiment of the utility model;
FIG. 5 shows a schematic view of the assembly of an end cap and a seal ring according to one embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
100 end cover, 120 body, 122 shaft hole, 124 oil seal mounting hole, 126 oil return groove, 128 transition part and 202 sealing ring.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
End caps, transmissions and vehicles according to some embodiments of the utility model are described below with reference to fig. 1-5.
The first embodiment is as follows:
as shown in fig. 1, 2 and 3, a first aspect of the present invention provides an end cap 100, comprising: body 120, shaft bore 122, oil seal mounting bore 124, oil return groove 126, and transition 128. The shaft hole 122 is disposed on the body 120 of the end cover 100, the oil seal mounting hole 124 is disposed along the circumferential direction of the shaft hole 122, and the oil return groove 126 extends from the side wall of the oil seal mounting hole 124 to a direction away from the oil seal mounting hole 124. The transition portion 128 is disposed on the body 120, wherein a side wall of the oil seal mounting hole 124 is connected with an inner wall of the oil return groove 126 through the transition portion 128.
In this embodiment, the end cap 100 includes: body 120, shaft hole 122, oil seal mounting hole 124, scavenge groove 126 and transition 128. The body 120 of the end cap 100 is a main structure of the end cap 100, and the shaft hole 122 is disposed on the body 120. The shaft hole 122 is disposed on the body 120 of the end cover 100 along the axial direction of the end cover 100, the input shaft for the transmission passes through the shaft hole 122, and the body 120 and the shaft hole 122 also prevent a part of the input shaft from being exposed to the external environment. The oil seal mounting hole 124 is provided on the body 120 along the circumferential direction of the shaft hole 122, and the circumferential surface of the side wall of the oil seal mounting hole 124 is concentric with the shaft hole 122. When the sealing means is mounted on the end cover 100, the sealing means is mounted on the body 120 of the end cover 100 along the circumferential surface of the side wall of the oil seal mounting hole 124, and the bottom surface and the circumferential surface of the side wall of the oil seal mounting hole 124 are engaged with the sealing means. The body 120 is further provided with an oil return groove 126, the oil return groove 126 extends from the side wall of the oil seal mounting hole 124 to the direction far away from the oil seal mounting hole 124, and is used for oil circulation between the position of the sealing device and the inside of the gearbox, so that the contact position of the sealing device and the end cover 100 and the contact position of the sealing device and the input shaft keep oil sealing and lubrication, and the sealing and lubrication effects are enhanced. The transition portion 128 is disposed on the body 120, and a side wall of the oil seal mounting hole 124 is connected with an inner wall of the oil return groove 126 through the transition portion 128. Specifically, the side wall of the oil seal mounting hole 124 is connected with the inner wall of the oil return groove 126 through the transition part 128, so that a sharp edge surface at the joint is avoided, the outer peripheral surface and the edge of the sealing device are prevented from being scratched in the mounting or dismounting process of the sealing device, and the sealing effect of the sealing device is improved. In addition, as the transition part 128 is connected with the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126, a continuous and complete oil film can be formed on the surfaces of the transition part 128, the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126, and the oil film is prevented from being broken due to the excessively sharp connection position of the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126. In the process of mounting or dismounting the sealing device, the sealing device is in complete oil film contact with the surface of the transition part 128, the sealing device is prevented from being scratched with the side wall of the oil seal mounting hole 124 and the oil return groove 126, and the phenomenon that the sealing device deforms or the material of the sealing device falls off due to scratching is avoided, so that the normal operation of the gearbox and the input shaft is ensured, the phenomenon that the sealing device deforms and extrudes the input shaft, oil leaks from the gearbox or impurities in the external environment enter the gearbox is reduced, the abrasion of the input shaft is reduced, and the precision of internal parts of the gearbox is ensured.
Example two:
as shown in fig. 2 and 4, the present embodiment provides an end cap 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The transition portion 128 extends from the sidewall of the oil seal mounting hole 124 to the inner wall of the oil return groove 126 in an arc shape.
In this embodiment, the transition portion 128 extends from the side wall of the oil seal mounting hole 124 to the inner wall of the oil return groove 126 in an arc shape, because the transition portion 128 connects the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126, and the transition portion 128 extends in an arc shape, a continuous and complete oil film can be formed on the transition portion 128, the side wall of the oil seal mounting hole 124 and the inner wall surface of the oil return groove 126, and the oil film is prevented from being broken due to the excessively sharp connection between the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126. In the process of mounting or dismounting the sealing device, the sealing device is in contact with a complete oil film on the surface of the transition part 128, so that the phenomenon that the sealing device is scratched on the side wall of the oil seal mounting hole 124 and the oil return groove 126 and the phenomenon that the sealing device is deformed or the material of the sealing device falls off due to scratching is avoided.
Example three:
as shown in fig. 3 and 4, the present embodiment provides an end cap 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The transition 128 is chamfered or radiused.
In this embodiment, the transition portion 128 is a chamfer or a fillet, thereby avoiding the occurrence of a sharp edge face at the joint of the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126, avoiding the sealing device from being scratched in the mounting and dismounting processes, simultaneously enabling the side wall of the oil seal mounting hole 124 and the inner wall surface of the oil return groove 126 to form a continuous and complete oil film, and enabling the sealing device to be in contact with the complete oil film when being in contact with the side surface of the oil seal mounting hole 124, so that the lubrication degree is enhanced, avoiding the phenomenon that the sealing device is deformed or self materials fall off due to uneven stress caused by local scratching, thereby ensuring the good operation of the input shaft, and the sealing of the gearbox and the operation precision of internal parts of the gearbox.
Example four:
as shown in fig. 4, the present embodiment provides an end cap 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The height of the transition portion 128 in the axial direction of the shaft hole 122 is 0.5 mm or more and 2 mm or less.
In this embodiment, the height of the transition portion 128 in the axial direction of the shaft hole 122 is greater than or equal to 0.5 mm and less than or equal to 2 mm, and a proper amount of oil body flow is ensured between the sealing device in the oil seal mounting hole 124 and the transmission case to ensure the sealing and lubrication of the sealing device, and meanwhile, under the condition that the sealing device is damaged, large-particle impurities caused by the excessively high transition portion enter the transmission case to damage internal parts of the transmission case, and meanwhile, the phenomenon that the normal operation of the input shaft is influenced due to the local deformation of the sealing device caused by the local unbalanced stress of the sealing device due to the excessively large size of the transition portion 128 is avoided.
Example five:
as shown in fig. 3, 4 and 5, the present embodiment provides an end cap 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The oil returning groove 126 is provided in the radial direction of the shaft hole 122.
In this embodiment, the oil returning grooves 126 are provided in the radial direction of the shaft hole 122. The oil return groove 126 is extended from the side wall of the oil seal mounting hole 124 in a direction away from the oil seal mounting hole 124, and the oil return groove 126 is provided and extended in the radial direction of the oil hole.
Example six:
as shown in fig. 2, 3 and 4, the present embodiment provides an end cap 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The transition portion 128 is disposed between the bottom wall of the oil return groove 126 and the side wall of the oil seal mounting hole 124.
In this embodiment, the transition portion 128 is disposed between the bottom wall of the oil return groove 126 and the side wall of the oil seal mounting hole 124, thereby preventing the occurrence of a sharp edge surface at the joint between the side wall of the oil seal mounting hole 124 and the inner wall of the oil return groove 126, preventing the sealing device from being scratched during the mounting and dismounting processes, and simultaneously enabling the side wall of the oil seal mounting hole 124 and the surface of the inner wall of the oil return groove 126 to form a continuous and complete oil film, and when the sealing device contacts the side surface of the oil seal mounting hole 124, the sealing device contacts the complete oil film, so that the lubrication degree is enhanced, and preventing the sealing device from being deformed or falling off due to uneven stress caused by local scratching, thereby ensuring good operation of the input shaft, sealing of the transmission and operation precision of internal parts of the transmission.
Example seven:
the present embodiment provides a gearbox comprising the end cover 100 according to any of the above-mentioned embodiments, so that the gearbox comprises all the benefits of the end cover 100 according to any of the above-mentioned embodiments.
Example eight:
as shown in fig. 5, the present embodiment provides a transmission case, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The gearbox includes: a housing, an input shaft, and a seal 202. The end cover 100 is connected with the box body; the input shaft is arranged in the shaft hole 122 in a penetrating manner; the seal ring 202 is embedded in the oil seal mounting hole 124 and sleeved on the input shaft. In this embodiment, the housing is connected to the end cap 100, the input shaft is inserted into the shaft hole 122, and the seal ring 202 is embedded in the oil seal mounting hole 124 and sleeved on the input shaft. The seal ring 202 is used as a sealing device, the seal ring 202 is fitted in the oil seal mounting hole 124 on the end cover 100, the input shaft is used as an input shaft, and the seal ring 202 is sleeved on the input shaft. When the sealing ring 202 is mounted on the end cover 100, and the end cover 100 is connected with the box body in a matching manner, the sealing ring 202 ensures the sealing of the transmission case and prevents part of the input shaft from being exposed in the external environment, and at the moment, the transition part 128, which is in contact with the joint of the sealing ring 202 and the side wall of the oil seal mounting hole 124 and the oil return groove 126, avoids the occurrence of sharp edges, thereby preventing the sealing ring 202 from being scratched and further ensuring the good operation of internal parts of the transmission case and the input shaft.
Example nine:
as shown in fig. 5, the present embodiment provides a transmission case, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The seal ring 202 is in interference fit with the oil seal mounting hole 124.
In this embodiment, the seal ring 202 is an interference fit with the oil seal mounting hole 124. After the sealing ring 202 is inserted into the oil seal mounting hole 124 of the end cover 100, a certain pre-tightening force is generated between the sealing ring 202 and the oil seal mounting hole 124 due to interference fit, so that the sealing ring 202 is stably maintained at the oil seal mounting hole 124 and cannot move along with the rotation and axial movement of the input shaft.
Example ten:
the present embodiment provides a vehicle comprising a gearbox according to any of the above-mentioned aspects, whereby the vehicle comprises all the advantageous effects of a gearbox according to any of the above-mentioned aspects.
In the claims, the specification and the drawings of the specification of the present invention, the term "plurality" means two or more, unless explicitly defined otherwise, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings only for the purpose of describing the present invention more conveniently and simplifying the description, and do not indicate or imply that the referred device or element must have the described specific orientation, be constructed and operated in the specific orientation, and thus the description should not be construed as limiting the present invention; the terms "connect," "mount," "secure," and the like are to be construed broadly, and for example, "connect" may refer to a fixed connection between multiple objects, a removable connection between multiple objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the above data specifically.
In the claims, specification, and drawings that follow the present disclosure, the description of the terms "one embodiment," "some embodiments," "specific embodiments," and so forth, means 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 disclosure. In the claims, specification and drawings of the present invention, schematic representations of the above terms 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.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An end cap, comprising:
a body;
the shaft hole is arranged on the body;
the oil seal mounting hole is formed along the circumferential direction of the shaft hole;
the oil return groove extends from the side wall of the oil seal mounting hole to the direction far away from the oil seal mounting hole;
a transition portion disposed on the body,
the side wall of the oil seal mounting hole is connected with the inner wall of the oil return groove through the transition part.
2. The end closure of claim 1,
the transition part extends from the side wall of the oil seal mounting hole to the inner wall of the oil return groove in an arc shape.
3. The end closure of claim 1,
the transition part is a chamfer or a fillet.
4. The end closure of claim 1,
the height of the transition part in the axial direction of the shaft hole is greater than or equal to 0.5 mm and less than or equal to 2 mm.
5. The end cap of any one of claims 1-4,
the oil return groove is arranged along the radial direction of the shaft hole.
6. The end cap of any one of claims 1-4,
the transition part is arranged between the bottom wall of the oil return groove and the side wall of the oil seal mounting hole.
7. A gearbox comprising an end cap according to any one of claims 1 to 6.
8. The transmission of claim 7, further comprising:
the end cover is connected with the box body;
the input shaft penetrates through the shaft hole;
and the sealing ring is embedded in the oil seal mounting hole and sleeved on the input shaft.
9. The gearbox of claim 8,
the sealing ring is in interference fit with the oil seal mounting hole.
10. A vehicle comprising a gearbox according to any of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121030810.3U CN215634877U (en) | 2021-05-14 | 2021-05-14 | End cover, gearbox and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121030810.3U CN215634877U (en) | 2021-05-14 | 2021-05-14 | End cover, gearbox and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634877U true CN215634877U (en) | 2022-01-25 |
Family
ID=79938274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121030810.3U Active CN215634877U (en) | 2021-05-14 | 2021-05-14 | End cover, gearbox and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634877U (en) |
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2021
- 2021-05-14 CN CN202121030810.3U patent/CN215634877U/en active Active
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