CN215673557U - Spline flange interchange type power takeoff for commercial vehicle gearbox - Google Patents
Spline flange interchange type power takeoff for commercial vehicle gearbox Download PDFInfo
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- CN215673557U CN215673557U CN202122252894.1U CN202122252894U CN215673557U CN 215673557 U CN215673557 U CN 215673557U CN 202122252894 U CN202122252894 U CN 202122252894U CN 215673557 U CN215673557 U CN 215673557U
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Abstract
The utility model discloses a spline flange interchange type power takeoff for a commercial vehicle gearbox, which comprises a power takeoff gear, a transmission gear, a shell, an output gear, an output shaft, a sliding gear sleeve, a gear shift fork, a gear shift shaft, a sealing ring, a cylinder, a spline connecting shaft and an output flange, wherein the power takeoff gear is meshed with an internal gear of the gearbox and is coaxially connected with the transmission gear; the transmission gear is meshed with the output gear, the output gear is provided with an external spline, one side of the output shaft is provided with the external spline, the other side of the output shaft is provided with the internal spline, and the output shaft is arranged in the shell; the sliding gear is sleeved on the output gear and is provided with an internal spline and a square groove along the circumferential direction, and the gear shifting fork is matched with the square groove of the sliding gear sleeve and is connected with the gear shifting shaft; the spline connecting shaft is arranged on one side of an internal spline of the output shaft, the output flange is arranged on the output shaft and the spline connecting shaft and connected with the spline connecting shaft, and the output flange is provided with the internal spline. The utility model realizes the integration of the power takeoff, has long service life and improves the reliability of gear engagement.
Description
Technical Field
The utility model relates to a spline flange interchange type power takeoff for a commercial vehicle gearbox, and belongs to the technical field of automobile parts.
Background
With the increasing national urban environment management, the types of special vehicles for sprinkling water, cleaning and the like are gradually increased, the working time is continuously prolonged, and higher requirements on the structure and the service life of a corresponding power takeoff are provided. The common power takeoff at present has two kinds of interfaces of spline and flange, can't switch by oneself at any time when different motorcycle types match, simultaneously because the current structural design life-span of power takeoff is shorter, takes place faults such as gear tooth beating, gear shift jamming, oil leak gas leakage easily.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a spline flange interchangeable power takeoff for a commercial vehicle gearbox, which aims at overcoming the defects in the prior art, improves the reliability of the power takeoff and prolongs the service life of the power takeoff.
In order to solve the technical problem, the utility model provides a spline flange interchange type power takeoff for a commercial vehicle gearbox, which comprises a power takeoff gear, a transmission gear, a shell, an output gear, an output shaft, a sliding gear sleeve, a gear shift fork, a gear shift shaft, a sealing ring, a cylinder, a spline connecting shaft and an output flange, wherein the power takeoff gear is meshed with an internal gear of the gearbox, the power takeoff gear is coaxially connected with the transmission gear through a spline, and the transmission gear is meshed with the output gear; the output gear is provided with an external spline, one side of the output shaft is provided with the external spline, the other side of the output shaft is provided with the internal spline, and the output shaft is arranged in the shell through an output bearing and a support bearing; the gear shifting fork is matched with the square groove of the sliding gear sleeve and connected with the gear shifting shaft through a taper plug, and the gear shifting fork, the gear shifting fork and the gear shifting shaft can axially move along one side of the external spline of the output shaft; the spline connecting shaft is arranged on one side of an internal spline of the output shaft and connected through the spline, the spline connecting shaft is provided with an external spline, the output flange is arranged on the output shaft and the spline connecting shaft and connected with the spline of the spline connecting shaft, and the output flange is provided with an internal spline.
The cylinder is arranged on the shell and matched with the gear shifting shaft; the sealing ring is arranged on the gear shifting shaft and matched with the air cylinder.
The power takeoff gear is helical, a thrust needle bearing and a gasket are arranged on one side of the transmission gear, which is in contact with the shell, and a needle bearing is arranged in an inner hole of the transmission gear.
And a rear bearing cover is arranged on the shell through a bolt.
An output oil seal is arranged between the output shaft and the shell.
Has the advantages that: the transmission is assembled on a transmission case of a commercial vehicle, and the power output of the whole vehicle to other parts except a transmission shaft is realized through gear engagement; on the basis of power takeoff spline flange exchange, through the redesign to meshing gear, the mode of putting into gear, sealed mode, realized that the power takeoff integrates, long-life, improved the reliable good performance of putting into gear and the ability that the product adapts to market.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention;
fig. 2 is a power transmission route diagram of the power takeoff of the present invention.
In the figure: 1. a power takeoff gear; 2. a transmission gear; 3. a needle bearing; 4. a thrust needle bearing; 5. a gasket; 6. a housing; 7. an output gear; 8. an output bearing; 9. an output shaft; 10. outputting an oil seal; 11. a support bearing; 12. a sliding gear sleeve; 13. a shift fork; 14. a shift shaft; 15. a seal ring; 16. a cylinder; 17. a spline connecting shaft; 18. an output flange; 19. and a rear bearing cover.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the utility model provides a spline flange interchange type power takeoff for a commercial vehicle gearbox, which comprises a power takeoff gear 1, a transmission gear 2, a shell 6, an output gear 7, an output shaft 9, a sliding gear sleeve 12, a shift fork 13, a shift shaft 14, a sealing ring 15, a cylinder 16, a spline connecting shaft 17 and an output flange 18, wherein the power takeoff gear 1 is meshed with an internal gear of the gearbox, the power takeoff gear 1 and the transmission gear 2 are coaxially connected through a spline, the transmission gear 2 is meshed with the output gear 7, and the output gear 7 is freely sleeved on the output shaft 9; the output gear 7 is provided with an external spline, one side of the output shaft 9 is provided with the external spline, the other side of the output shaft is provided with the internal spline, and the output shaft 9 is arranged in the shell 6 through an output bearing 8 and a support bearing 11; the sliding gear sleeve 12 is arranged on the output gear 7, an internal spline and a square groove along the circumferential direction are processed on the sliding gear sleeve 12, the gear shifting fork 13 is matched with the square groove of the sliding gear sleeve 12 and is connected with the gear shifting shaft 14 through a conical plug, and the three parts can axially move along one side of the external spline of the output shaft 9; the spline connecting shaft 17 is arranged on one side of an internal spline of the output shaft 9, and the spline connecting shaft 17 is provided with an external spline and connected through the spline; the output flange 18 is mounted on the output shaft 9 and the spline connecting shaft 17, and the output flange 18 is provided with an internal spline and connected with the spline connecting shaft 17 through a spline.
The air cylinder 16 is arranged on the shell 6 and matched with the gear shifting shaft 14; the seal ring 15 is mounted on the shift shaft 14 and is engaged with the cylinder 16.
The power takeoff gear 1 is a helical gear, a thrust needle bearing 4 and a gasket 5 are arranged on one side of the transmission gear 2, which is in contact with the shell 6, and a needle bearing 3 is arranged in an inner hole of the transmission gear 2.
A rear bearing cover 19 is mounted on the housing 6 by bolts.
An output oil seal 10 is arranged between the output shaft 9 and the shell 6.
When high-pressure gas does not exist in the cylinder 16, the internal gear of the gearbox drives the power takeoff gear 1 and the transmission gear 2 to drive the output gear 7 to idle on the output shaft 9, and no torque is output; when the cylinder 16 is filled with high-pressure gas, the gear shifting shaft 14 is pushed to move and drive the gear shifting fork 13 to push the sliding gear sleeve 12 again, so that the internal spline of the sliding gear sleeve 12 is matched with the external spline of the output shaft 9, and the power transmission path is power takeoff gear 1 → transmission gear 2 → output gear 7 → sliding gear sleeve 12 → output shaft 9 → spline connecting shaft 17 → output flange 18, thereby realizing torque output.
When the spline connecting shaft 17, the output flange 18 and the related connecting pieces are detached, the power takeoff is changed from a flange interface to a straight-through interface, the driving mode is unchanged, and the power transmission path is changed into the power takeoff gear 1 → the transmission gear 2 → the output gear 7 → the sliding gear sleeve 12 → the output shaft 9.
In order to mesh with the internal gear of the gearbox, the power take-off gear 1 is designed as a helical gear, but helical teeth can generate axial force and cause abrasion to the shell 6, so that a thrust needle bearing 4 and a gasket 5 are additionally arranged on one side of the transmission gear 2.
The utility model changes the original connection mode with the transmission shaft into spline connection and flange connection which are combined into a whole, the output mode of the power takeoff, namely spline output and flange output, can be automatically switched at any time, thereby improving the convenience of use for customers, reducing the cost and realizing the integration of the power takeoff.
In order to prolong the service life of a transmission system, the transmission gear and the output gear are redesigned, the contact area between the end face of the transmission gear and a thrust bearing and the contact area when the transmission gear is meshed with the output gear are both greatly increased, the gear tooth punching fault is solved, the service life of the gear is prolonged, meanwhile, the output end is sealed by adopting a combined oil seal, the sealing effect is good, the oil leakage fault is solved, and the service life of a power takeoff is prolonged.
The gear engaging mode of the utility model adopts a shifting fork-sliding gear sleeve type, and the sealing position of the cylinder adopts a double-sealing ring type, thereby solving the problems of gear shifting clamping stagnation and air leakage and improving the gear engaging reliability of the power takeoff.
The above-described embodiments of the utility model are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (5)
1. The utility model provides a spline flange interchange formula power takeoff for commercial car gearbox which characterized in that: the gear shifting device comprises a power takeoff gear (1), a transmission gear (2), a shell (6), an output gear (7), an output shaft (9), a sliding gear sleeve (12), a shifting fork (13), a shifting shaft (14), a sealing ring (15), a cylinder (16), a spline connecting shaft (17) and an output flange (18), wherein the power takeoff gear (1) is meshed with an internal gear of a gearbox, the power takeoff gear (1) is coaxially connected with the transmission gear (2) through a spline, and the transmission gear (2) is meshed with the output gear (7); the output gear (7) is processed with an external spline, one side of the output shaft (9) is processed with an external spline, the other side of the output shaft is processed with an internal spline, and the output shaft (9) is arranged in the shell (6) through an output bearing (8) and a support bearing (11); the sliding gear sleeve (12) is arranged on the output gear (7), an internal spline and a square groove along the circumferential direction are processed on the sliding gear sleeve (12), the gear shifting fork (13) is matched with the square groove of the sliding gear sleeve (12) and is connected with the gear shifting shaft (14) through a conical plug, and the three components can axially move along one side of the external spline of the output shaft (9); the spline connecting shaft (17) is arranged on one side of an internal spline of the output shaft (9) and connected through the spline, the spline connecting shaft (17) is provided with an external spline, the output flange (18) is arranged on the output shaft (9) and the spline connecting shaft (17) and connected with the spline connecting shaft (17) through the spline, and the output flange (18) is provided with an internal spline.
2. The spline-flange interchangeable power takeoff for a commercial vehicle transmission of claim 1, wherein: the cylinder (16) is arranged on the shell (6) and is matched with the gear shifting shaft (14); and the sealing ring (15) is arranged on the gear shifting shaft (14) and is matched with the air cylinder (16).
3. The spline-flange interchangeable power takeoff for a commercial vehicle transmission of claim 1, wherein: the power takeoff gear (1) is a helical tooth, one side of the transmission gear (2) contacting the shell (6) is provided with a thrust needle bearing (4) and a gasket (5), and an inner hole of the transmission gear (2) is provided with a needle bearing (3).
4. The spline-flange interchangeable power takeoff for a commercial vehicle transmission of claim 1, wherein: and a rear bearing cover (19) is mounted on the shell (6) through a bolt.
5. A spline-flange interchangeable power take-off for a gearbox of a commercial vehicle according to any one of claims 1 to 4, characterized in that: an output oil seal (10) is arranged between the output shaft (9) and the shell (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122252894.1U CN215673557U (en) | 2021-09-16 | 2021-09-16 | Spline flange interchange type power takeoff for commercial vehicle gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122252894.1U CN215673557U (en) | 2021-09-16 | 2021-09-16 | Spline flange interchange type power takeoff for commercial vehicle gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673557U true CN215673557U (en) | 2022-01-28 |
Family
ID=79964131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122252894.1U Active CN215673557U (en) | 2021-09-16 | 2021-09-16 | Spline flange interchange type power takeoff for commercial vehicle gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673557U (en) |
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2021
- 2021-09-16 CN CN202122252894.1U patent/CN215673557U/en active Active
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