CN213236011U - Jackshaft assembly location structure - Google Patents
Jackshaft assembly location structure Download PDFInfo
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- CN213236011U CN213236011U CN202021295415.3U CN202021295415U CN213236011U CN 213236011 U CN213236011 U CN 213236011U CN 202021295415 U CN202021295415 U CN 202021295415U CN 213236011 U CN213236011 U CN 213236011U
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- shell
- bearing
- intermediate shaft
- clutch
- end bearing
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Abstract
The utility model provides a positioning structure of an intermediate shaft assembly, which comprises a clutch shell, a speed changer shell, a front end bearing, a rear end bearing and a stop ring; the front end of the intermediate shaft is close to the clutch shell, and the rear end of the intermediate shaft is far away from the clutch shell; the front end bearing and the rear end bearing are respectively sleeved at the front end and the rear end of the intermediate shaft correspondingly; the intermediate shaft is placed in the transmission shell, wherein a front end bearing and a rear end bearing of the intermediate shaft are respectively and correspondingly pressed in a bearing hole of the transmission shell, and the front end bearing and a sealing end surface of the transmission shell are arranged in a flush manner; the front end of the transmission shell is hermetically connected with the clutch shell, and the sealing end surface of the clutch shell is arranged in a plane and simultaneously compresses the sealing end surfaces of the front end bearing and the transmission shell; the rear end bearing is provided with a stop ring. The structure changes the sealing structure between the clutch shell and the transmission shell, effectively solves the positioning problem of the intermediate shaft assembly, reduces the assembly difficulty and improves the sealing performance of the product.
Description
Technical Field
The utility model relates to a two jackshaft derailleur fields specifically are a jackshaft assembly location structure.
Background
At present, a traditional double-intermediate-shaft transmission intermediate shaft assembly is positioned through structures such as a front-end bearing stop ring, a bolt, a baffle plate and the like, as shown in figure 1; the sealing end face of the clutch housing is not arranged in a plane but needs to be provided with a corresponding bearing mounting hole, as shown in fig. 2, a stop ring is arranged on a front end bearing of the intermediate shaft, and a bearing spigot is arranged at the position of the front end bearing corresponding to the stop ring, so that the sealing end faces of the front end bearing and the transmission housing are not arranged in a plane, the structure causes that the sealing area of a part of the area between the clutch housing and the transmission housing is limited, even the sealing performance of the part of the box type housing needs to be ensured by adding an O-shaped ring, the structure is relatively complex, and the assembly is.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a jackshaft assembly location structure, simple structure has changed the seal structure between clutch housing and the gearbox housing, has effectively solved the location problem of jackshaft assembly, has reduced the assembly degree of difficulty, has reduced manufacturing cost, has improved the sealing performance of product.
The utility model discloses a realize through following technical scheme:
a positioning structure of an intermediate shaft assembly comprises a clutch shell, a speed changer shell, a front end bearing, a rear end bearing and a stop ring;
the front end of the intermediate shaft is close to the clutch shell, and the rear end of the intermediate shaft is far away from the clutch shell; the front end bearing and the rear end bearing are respectively sleeved at the front end and the rear end of the intermediate shaft correspondingly; the intermediate shaft is placed in the transmission shell, wherein a front end bearing and a rear end bearing of the intermediate shaft are respectively and correspondingly pressed in a bearing hole of the transmission shell, and the front end bearing and a sealing end surface of the transmission shell are arranged in a flush manner; the front end of the transmission shell is hermetically connected with the clutch shell, and the sealing end surface of the clutch shell is arranged in a plane and simultaneously compresses the sealing end surfaces of the front end bearing and the transmission shell; the rear end bearing is provided with a stop ring.
Preferably, the joint surface of the clutch housing and the input shaft bearing cover is a conical surface, and the wall thickness of the clutch housing is gradually increased along the direction approaching the sealing end surface.
Preferably, a gasket is arranged on the sealing end face of the clutch shell, and the gasket presses the front end bearing and the sealing end face of the transmission shell through the clutch shell.
Preferably, the clutch housing and the transmission housing are connected by bolts.
Preferably, the rear end bearing is provided with a bearing spigot, the gearbox shell is provided with a stop ring spigot corresponding to the rear end bearing, and the stop ring is sleeved on the bearing spigot.
Furthermore, the bearing spigot and the stop ring spigot are correspondingly arranged and are close to the inner side of the transmission shell.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a positioning structure of an intermediate shaft assembly, wherein a clutch shell is connected with a speed changer shell through a bolt, a front end bearing of the intermediate shaft assembly limits axial movement towards the front end direction of the intermediate shaft through the fixation of the clutch shell, a rear end bearing of the intermediate shaft is additionally provided with a stop ring to limit the axial movement of the intermediate shaft assembly towards the rear end direction of the intermediate shaft; the sealing end surface of the clutch shell is arranged in a plane and compresses the sealing end surfaces of the front end bearing and the transmission shell, so that a gap is prevented from being generated by compression with the sealing end surfaces of the transmission shell and the front end bearing; the front end bearing is arranged flush with the sealing end face of the transmission shell, so that the attaching area between the clutch shell and the transmission shell is increased, and the sealing performance is improved.
Furthermore, the joint surface of the clutch shell and the input shaft bearing cover is a conical surface, the wall thickness of the clutch shell is gradually increased along the direction approaching the sealing end surface, the attaching area between the transmission shell and the clutch shell is increased, and the sealing performance of the clutch shell and the transmission shell is improved.
Furthermore, a gasket is arranged on the sealing end face of the clutch shell, and the gasket compresses the sealing end faces of the front end bearing and the transmission shell through the clutch shell, so that the sealing performance between the clutch shell and the transmission shell as well as between the front end bearing and the transmission shell is improved.
Furthermore, the clutch shell is connected with the transmission shell through the bolts, so that the connectivity of the clutch shell and the transmission shell is increased, and the sliding of the sealing end face is avoided.
Furthermore, the stop ring is sleeved on a bearing spigot of the rear end bearing to limit the axial movement of the intermediate shaft assembly to the rear end direction of the intermediate shaft, so that the rear end of the intermediate shaft is axially positioned.
Furthermore, the bearing stop opening and the stop ring stop opening are correspondingly arranged, and the inner side of the transmission shell is arranged, so that the rear-end bearing stop ring is matched with the end surface of the clutch shell to realize axial positioning.
Drawings
FIG. 1 is a schematic illustration of a dual countershaft transmission countershaft positioning as described in the prior art;
FIG. 2 is an enlarged view of the front end of portion A of FIG. 1;
FIG. 3 is a schematic view of a positioning structure of the intermediate shaft assembly according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the front end of the portion B in FIG. 3;
fig. 5 is an enlarged view of the rear end of the part C in fig. 3.
In the figure: 1 is a clutch shell; 2 is a liner; 3 is a front end bearing; 4 is a transmission case; 5 is an input shaft bearing cover; 6 is an intermediate shaft; 7 is a rear end bearing; 8 is a stop ring.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
Examples
The utility model provides a positioning structure of an intermediate shaft assembly, which comprises a clutch shell 1, a speed changer shell 4, a front end bearing 3, a rear end bearing 7 and a stop ring 8;
as shown in fig. 3, the clutch housing 1 and the transmission housing 4 are connected by bolts, the front end of the intermediate shaft 6 is disposed close to the clutch housing 1, and the rear end of the intermediate shaft 6 is disposed far from the clutch housing 1; the front end bearing 3 and the rear end bearing 7 are respectively sleeved at the front end and the rear end of the intermediate shaft 6 correspondingly; the intermediate shaft 6 is placed inside the transmission case 4.
The bearings of the front end bearing 3 and the rear end bearing 7 of the intermediate shaft 6 are respectively and correspondingly pressed in the bearing holes of the speed changer shell 4; and the front end bearing 3 is arranged flush with the sealing end surface of the transmission case 4, as shown in fig. 4; the front end of the speed changer shell 4 is hermetically connected with the clutch shell 1, the joint surface of the clutch shell 1 and the input shaft bearing cover 5 is arranged in a conical surface manner, the wall thickness of the clutch shell 1 is gradually increased along the direction approaching the sealing end surface, the joint area between the speed changer shell and the clutch shell is increased, and the sealing property between the clutch shell and the speed changer shell is improved; a gasket 2 is arranged on the sealing end face of the clutch shell 1, and the gasket 2 tightly presses the sealing end faces of the front end bearing 3 and the transmission shell 4 through the clutch shell 1, wherein the gasket 2 improves the sealing performance between the clutch shell and the transmission shell as well as between the front end bearing and the transmission shell; the sealed end face of clutch housing 1 is the plane setting, compresses tightly the sealed end face of front end bearing and derailleur case, avoids compressing tightly with the vertical end face of derailleur case and the vertical end face of front end bearing and produces the gap.
As shown in fig. 5, the rear end bearing 7 is provided with a bearing spigot, and the transmission case 4 is provided with a stop ring spigot corresponding to the rear end bearing 7; wherein, the stop ring 8 is sleeved on the bearing spigot; the bearing spigot and the stop ring spigot are arranged correspondingly and are arranged close to the inner side of the speed changer shell 4.
The utility model provides an intermediate shaft assembly positioning structure, the bearing spigot on the clutch housing 1 and the stop ring spigot on the transmission housing 4 are cancelled in the original structure, the front end of the transmission housing 4 is hermetically connected with the clutch housing 1, the junction surface of the clutch housing 1 and the input shaft bearing cap 5 is in a conical surface arrangement, the wall thickness of the clutch housing 1 is gradually increased along the direction approaching the sealing end surface, thereby increasing the laminating area between the clutch housing 1 and the transmission housing 4; a gasket 2 is arranged on the sealing end surface of the clutch shell 1, and the gasket 2 improves the sealing performance between the clutch shell 1 and the transmission shell 4; a stop ring 8 is additionally arranged on a rear end bearing 7 of the intermediate shaft 6, a stop ring spigot is machined at a corresponding position of the speed changer shell 4, the axial movement of the intermediate shaft assembly towards the rear end direction of the intermediate shaft can be limited, the clutch shell 1 and the speed changer shell 4 are connected through bolts, and the axial movement towards the front end direction of the intermediate shaft is limited by the front end bearing 3 of the intermediate shaft assembly through the fixation of the clutch shell 1, so that the axial positioning is realized.
The utility model provides a sealed problem has simplified clutch housing 1 faying face structure and countershaft assembly mounting structure simultaneously between clutch housing 1 and the derailleur housing 4, has reduced manufacturing cost and has improved the sealing performance here again.
Claims (6)
1. A middle shaft assembly positioning structure is characterized by comprising a clutch shell (1), a speed changer shell (4), a front end bearing (3), a rear end bearing (7) and a stop ring (8);
the front end of the intermediate shaft (6) is close to the clutch shell (1), and the rear end of the intermediate shaft (6) is far away from the clutch shell (1); the front end bearing (3) and the rear end bearing (7) are respectively sleeved at the front end and the rear end of the intermediate shaft (6) correspondingly; the intermediate shaft (6) is placed in the speed changer shell (4), wherein bearings of a front end bearing (3) and a rear end bearing (7) of the intermediate shaft (6) are respectively and correspondingly pressed in bearing holes of the speed changer shell (4), and the front end bearing (3) and a sealing end surface of the speed changer shell (4) are arranged in a flush manner; the front end of the speed changer shell (4) is hermetically connected with the clutch shell (1), the sealing end surface of the clutch shell (1) is arranged in a plane, and the sealing end surfaces of the front end bearing (3) and the speed changer shell (4) are simultaneously pressed; and a stop ring (8) is arranged on the rear end bearing (7).
2. The intermediate shaft assembly positioning structure as claimed in claim 1, wherein the joint surface of the clutch housing (1) and the input shaft bearing cover (5) is a conical surface, and the wall thickness of the clutch housing (1) is gradually increased along the direction approaching the sealing end surface.
3. The intermediate shaft assembly positioning structure according to claim 1, wherein a gasket (2) is arranged on the sealing end surface of the clutch housing (1), and the gasket (2) presses the sealing end surfaces of the front end bearing (3) and the transmission housing (4) through the clutch housing (1).
4. An intermediate shaft assembly positioning structure as defined in claim 1, wherein the clutch housing (1) and the transmission housing (4) are connected by bolts.
5. The intermediate shaft assembly positioning structure as claimed in claim 1, wherein the rear end bearing (7) is provided with a bearing spigot, the transmission housing (4) is provided with a stop ring spigot corresponding to the rear end bearing (7), and the stop ring (8) is sleeved on the bearing spigot.
6. An intermediate shaft assembly positioning structure as defined in claim 5, wherein the bearing spigot and the snap ring spigot are provided correspondingly and close to the inside of the transmission case (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021295415.3U CN213236011U (en) | 2020-07-03 | 2020-07-03 | Jackshaft assembly location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021295415.3U CN213236011U (en) | 2020-07-03 | 2020-07-03 | Jackshaft assembly location structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236011U true CN213236011U (en) | 2021-05-18 |
Family
ID=75887047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021295415.3U Active CN213236011U (en) | 2020-07-03 | 2020-07-03 | Jackshaft assembly location structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213236011U (en) |
-
2020
- 2020-07-03 CN CN202021295415.3U patent/CN213236011U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |