CN109296734A - A kind of automotive transmission suitable for bus - Google Patents
A kind of automotive transmission suitable for bus Download PDFInfo
- Publication number
- CN109296734A CN109296734A CN201811483911.9A CN201811483911A CN109296734A CN 109296734 A CN109296734 A CN 109296734A CN 201811483911 A CN201811483911 A CN 201811483911A CN 109296734 A CN109296734 A CN 109296734A
- Authority
- CN
- China
- Prior art keywords
- shell
- gear
- bearing
- output shaft
- shift fork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
The present invention provides a kind of automotive transmission suitable for bus, which simplify gearshifts, and the bearing positioning of axis is reliable, it is ensured that transmission it is permanent reliable and stable.It includes gearbox body, the gearbox body includes first shell, second shell, the first shell, installation cavity is formed with after second shell assembling, the input shaft of evagination on the front bulkhead of the first shell, the male end of the input shaft is circumscribed with driving motor, the rear end for being located at the installation cavity of the input shaft is equipped with the first master gear through input shaft positioning bearing rear enclosure, the back-end central of the input shaft is provided with indent axle center hole, the front end sleeve of output shaft is equipped with coaxially arranged in the indent axle center hole after needle bearing, after the rear end of the output shaft positions bearing by output shaft, aft bulkhead through the second shell is arranged, output shaft positioning bearing outer ring front end is installed with rear axle bearing plate.
Description
Technical field
The present invention relates to the technical field of transmission speed variator, specially a kind of automotive transmission suitable for bus.
Background technique
Automotive transmission passes through the transforming gear of gear drive and gear, and the power that power source is issued is with suitable
Torque and revolving speed pass to transmission shaft, to adapt to requirement of the automobile under different road conditions to traction and travel speed.Existing quotient
It is mainly multi gear triple axle main structure with the speed changer that vehicle uses, complicated shift mechanism is single to bore synchronizer, cast iron cap
Part.It is difficult to improve gear shift comfort, dynamic property and the economic index of automobile all, it is made to be difficult to meet commercial vehicle power matching
Requirement to transmission system gear shift device.
The automotive transmission of existing bus is generally at the both ends of axis by bearing location and installation, for bus knot
Structure, original antiwhip being embedded in by card slot form is not applicable, so that the speed changer of bus is often asked
Topic, so that transmission cannot be permanent reliable and stable.
Summary of the invention
In view of the above-mentioned problems, which simplify shift machines the present invention provides a kind of automotive transmission suitable for bus
Structure, and the bearing positioning of axis is reliable, it is ensured that transmission it is permanent reliable and stable.
A kind of automotive transmission suitable for bus, it is characterised in that: it includes gearbox body, the gearbox body packet
First shell, second shell are included, is formed with installation cavity after the first shell, second shell assembling, the first shell
The input shaft of evagination on front bulkhead, the male end of the input shaft are circumscribed with driving motor, and the input shaft is located at the peace
Behave affectedly body rear end through input shaft positioning bearing rear enclosure equipped with the first master gear, in the back-end central of the input shaft is provided with
Recessed axle center hole, the front end sleeve of output shaft equipped with coaxially arranged in the indent axle center hole after needle bearing, the output shaft
Rear end bearing is positioned by output shaft after, through the aft bulkhead of the second shell arrange that the output shaft positions bearing outer ring
Front end is installed with rear axle bearing plate, and input shaft positioning bearing outer ring rear end is installed with front axle bearing plate, the output shaft
The second master gear is set with by needle bearing positioned at the part of the installation cavity, the output shaft corresponds to described second
The front end portion of master gear is set with hub snap ring with teeth, is set with the sliding gear collar being axially movable on the tooth hub snap ring, described
Sliding gear collar is axially moved along between the first master gear, the second master gear, and the both ends of the surface of the sliding gear collar are respectively facing institute
The respective engagement gear ring arrangement of the first master gear, the second master gear is stated, the installation cavity there also is provided transmission shaft, the biography
Moving axis is separately installed with constant mesh gear, the second intermediate gear, the constant mesh gear engagement connection corresponding position from front to back
The first master gear, the second master gear of second intermediate gear engagement connection corresponding position, the outer ring of the sliding gear collar
Face is provided with interior concave ring groove, there also is provided shift fork axle in the installation cavity body, and the both ends of the shift fork axle pass through shift fork axle respectively
Bushing is installed in corresponding shift fork axle pilot hole, and shift fork is installed in the shift fork axle, is stretched in the driving end of the shift fork
In the interior concave ring groove, axially driving shift of the driving end driving sliding gear collar of the shift fork along output shaft, the shift fork
The convex power that is provided with of the length direction of axis axially inputs, and external gearshift connects the convex power by connector
Axial input；The rear end of the output shaft incudes tooth equipped with mileometer through the corresponding output shaft positioning bearing rear enclosure of second shell
Circle；The part for externally protruding out in the second shell of the output shaft is fixed with output flange, the output flange axially through
Locking nut is fastenedly connected in stretching in the mileometer sense in the rear end face of the output shaft, the sleeve part of the output flange
It answers in the evacuation annular groove of gear ring and is pressed the rear end face arrangement in the mileometer induction gear ring.
It is further characterized by: first master gear, the second intermediate gear are reduced to corresponding gear ring structure, it is ensured that
Infrastructure cost is low；
It is provided with Rear oil seal between the outer wall of the sleeve part and the correspondence inner wall of the location hole of the second shell, it is described
The front position that input shaft corresponds to input shaft positioning bearing is set with Front oil seal, described in the outer ring of the Front oil seal is close to
The correspondence inner wall of first shell is arranged；
The both ends of the transmission shaft pass through first bearing respectively, second bearing is installed on first shell, pair of second shell
It answers in positioning ring groove；
The bottom of the installation cavity is fixed with oil discharge screw component；
It is stretched in the interior concave ring groove in the copper shoe that the driving end of the shift fork passes through two sides, the top of the shift fork is logical
It crosses fixing bolt and is fixed in the shift fork axle.
After applying the present invention, input shaft, output shaft are coaxially arranged, drive synchronizer along defeated by shift fork axis
The axial activity of shaft is shifted gears comprising and there are two forward gears, when motor rotates forward, driving shift, when needs fall
When gear, motor reversal hangs respective notch, since the corresponding shaft bearing of input shaft, output shaft is consolidated by the way that bearing plate is axial
It is fixed, so that stable transmission is reliable, it is suitable for 8-12 meters of bus, which simplify gearshifts, and the bearing positioning of axis can
Lean on, it is ensured that transmission it is permanent reliable and stable.
Detailed description of the invention
Fig. 1 is specific embodiments of the present invention main view schematic cross-sectional view；
Fig. 2 is the connecting installation structure simplified schematic diagram of shift fork；
Title corresponding to serial number is as follows in figure:
First shell 1, front bulkhead 101, second shell 2, aft bulkhead 201, installation cavity 3, input shaft 4, indent axle center hole
41, input shaft positioning bearing 5, the first master gear 6, output shaft 7, the first needle bearing 8, output shaft position bearing 9, rear axle pressure-bearing
Plate 10, front axle bearing plate 11, the second needle bearing 12, the second master gear 13, tooth hub snap ring 14, sliding gear collar 15, engagement gear ring
16, transmission shaft 17, constant mesh gear 18, the second intermediate gear 19, interior concave ring groove 20, shift fork axle 21, shift fork neck bush 22, shift fork
Axially input 25, gearshift 26, connector 27, the mileometer induction of axis pilot hole 23, shift fork 24, driving end 241, convex power
Gear ring 28, output flange 29, sleeve part 291, Rear oil seal 30, Front oil seal 31, first bearing 32, second bearing 33, spiral shell of draining the oil
Bolt assembly 34, copper shoe 35, fixing bolt 36, locking nut 37.
Specific embodiment
A kind of automotive transmission suitable for bus, is shown in Fig. 1, Fig. 2: it includes gearbox body, and gearbox body includes the
One shell 1, second shell 2, first shell 1, second shell 2 are formed with installation cavity 3, the front bulkhead of first shell 1 after assembling
The input shaft 4 of evagination on 101, the male end of input shaft 4 are circumscribed with driving motor, the rear end for being located at installation cavity 3 of input shaft 4
The first master gear 6 is housed through input shaft positioning 5 rear enclosure of bearing, the back-end central of input shaft 4 is provided with indent axle center hole 41, defeated
The front end sleeve of shaft 7 is equipped with coaxially arranged in indent axle center hole 41 after the first needle bearing 8, and the rear end of output shaft 7 passes through defeated
The arrangement of aft bulkhead 201 after shaft positioning bearing 9, through second shell 2, after output shaft positioning 9 outer ring front end of bearing is installed with
Bearing plate 10, input shaft positioning 5 outer ring rear end of bearing are installed with front axle bearing plate 11, and cavity 3 is installed in being located at for output shaft 7
Part is set with the second master gear 13, the front end corresponding to the second master gear 13 of output shaft 7 by the second needle bearing 12
Point suit hub snap ring 14 with teeth, is set with the sliding gear collar 15 being axially movable on tooth hub snap ring 14, and sliding gear collar 15 is along the
It is axially moved between one master gear 6, the second master gear 13, the both ends of the surface of sliding gear collar 15 are respectively facing the first master gear 6, second
The respective engagement gear ring 16 of master gear 13 arranges that installation cavity 3 there also is provided transmission shaft 17, and transmission shaft 17 is distinguished from front to back
Constant mesh gear 18, the second intermediate gear 19 are installed, the engagement of constant mesh gear 18 connects the first master gear 6 of corresponding position,
Second master gear 13 of the second intermediate gear 19 engagement connection corresponding position, the outer ring surface of sliding gear collar 15 are provided with interior concave ring groove
20, installing in cavity 3 there also is provided shift fork axle 21, the both ends of shift fork axle 21 pass through respectively shift fork neck bush 22 be installed on it is corresponding
In shift fork axle pilot hole 23, it is installed with shift fork 24 in shift fork axle 22, is stretched in the driving end 241 of shift fork 24 in interior concave ring groove 20,
The axially driving shift for driving end 241 to drive sliding gear collar 15 along output shaft 7 of shift fork 24, the length direction of shift fork axle 7
It is provided with the axially input 25 of convex power, external gearshift 26 connects the axially input 25 of convex power by connector 27；
The rear end of output shaft 7 is equipped with mileometer induction gear ring 28 through the corresponding output shaft of second shell 2 positioning 9 rear enclosure of bearing；Output
The part for externally protruding out in second shell 2 of axis 7 is fixed with output flange 29, and output flange 29 is fastened axially through locking nut 37
It is connected to the rear end face of output shaft 7, the evacuation annular groove of mileometer induction gear ring 28 is stretched in the sleeve part 291 of output flange 29
Interior and press fitting is arranged in the rear end face of mileometer induction gear ring 28.
First master gear 6, the second intermediate gear 19 are reduced to corresponding gear ring structure, it is ensured that infrastructure cost is low；
Rear oil seal 30, input shaft are provided between the correspondence inner wall of the location hole of the outer wall and second shell 2 of sleeve part 291
4 front positions for corresponding to input shaft positioning bearing 5 are set with Front oil seal 31, and first shell 1 is close in the outer ring of Front oil seal 31
Corresponding inner wall arrangement；
The both ends of transmission shaft 17 pass through first bearing 32 respectively, second bearing 33 is installed on first shell 1, second shell 2
Correspondence positioning ring groove in；
The bottom of installation cavity 3 is fixed with oil discharge screw component 34；
The driving end 241 of shift fork 24 by being stretched in the interior concave ring groove 20 in the copper shoes 35 of two sides, shift fork 24 it is upper
Portion is fixed in the shift fork axle 21 by fixing bolt 36.
Its working principles are as follows: input shaft, output shaft are coaxially arranged, by shift fork axis drive synchronizer along
The axial activity of output shaft is shifted gears comprising there are two forward gears, and when motor rotates forward, needs are worked as in driving shift
When reversing gear, motor reversal hangs respective notch, since the corresponding shaft bearing of input shaft, output shaft passes through bearing plate axial direction
It is fixed, so that stable transmission is reliable, it is suitable for 8-12 meters of bus, which simplify gearshifts, and the bearing positioning of axis can
Lean on, it is ensured that transmission it is permanent reliable and stable.
Specific embodiments of the present invention are described in detail above, but content is only the preferable implementation of the invention
Example, should not be considered as limiting the invention the practical range of creation.It is all to become according to equalization made by the invention application range
Change and improve etc., it shall still fall within the scope of this patent.
Claims (6)
1. a kind of automotive transmission suitable for bus, it is characterised in that: it includes gearbox body, and the gearbox body includes
First shell, second shell are formed with installation cavity after the first shell, second shell assembling, before the first shell
The input shaft of evagination on end wall, the male end of the input shaft are circumscribed with driving motor, and the input shaft is located at the installation
The rear end of cavity is equipped with the first master gear through input shaft positioning bearing rear enclosure, and the back-end central of the input shaft is provided with indent
Axle center hole, the front end sleeve of output shaft is equipped with coaxially arranged in the indent axle center hole after needle bearing, after the output shaft
It holds by the aft bulkhead arrangement after output shaft positioning bearing, through the second shell, before the output shaft positions bearing outer ring
End is installed with rear axle bearing plate, and input shaft positioning bearing outer ring rear end is installed with front axle bearing plate, the position of the output shaft
The second master gear is set with by needle bearing in the part of the installation cavity, the output shaft corresponds to second master
The front end portion of gear is set with hub snap ring with teeth, is set with the sliding gear collar being axially movable, the cunning on the tooth hub snap ring
Movable tooth set is axially moved along between the first master gear, the second master gear, and the both ends of the surface of the sliding gear collar are respectively facing described
The respective engagement gear ring arrangement of first master gear, the second master gear, the installation cavity there also is provided transmission shaft, the transmission
Axis is separately installed with constant mesh gear, the second intermediate gear from front to back, the constant mesh gear engagement connection corresponding position
First master gear, the second master gear of the second intermediate gear engagement connection corresponding position, the outer ring surface of the sliding gear collar
It is provided with interior concave ring groove, there also is provided shift fork axle in the installation cavity body, the both ends of the shift fork axle pass through shift fork bushing respectively
Set is installed in corresponding shift fork axle pilot hole, and shift fork is installed in the shift fork axle, stretches in institute in the driving end of the shift fork
It states in interior concave ring groove, axially driving shift of the driving end driving sliding gear collar of the shift fork along output shaft, the shift fork axle
The convex power of being provided with of length direction axially input, external gearshift connects the convex line shaft by connector
To input；The rear end of the output shaft incudes tooth equipped with mileometer through the corresponding output shaft positioning bearing rear enclosure of second shell
Circle；The part for externally protruding out in the second shell of the output shaft is fixed with output flange, the output flange axially through
Locking nut is fastenedly connected in stretching in the mileometer sense in the rear end face of the output shaft, the sleeve part of the output flange
It answers in the evacuation annular groove of gear ring and is pressed the rear end face arrangement in the mileometer induction gear ring.
2. a kind of automotive transmission suitable for bus as described in claim 1, it is characterised in that: the first main tooth
Wheel, the second intermediate gear are specially corresponding gear ring structure.
3. a kind of automotive transmission suitable for bus as described in claim 1, it is characterised in that: the sleeve part
Rear oil seal is provided between outer wall and the correspondence inner wall of the location hole of the second shell, the input shaft corresponds to the input shaft
The front position of positioning bearing is set with Front oil seal, and the correspondence inner wall cloth of the first shell is close in the outer ring of the Front oil seal
It sets.
4. a kind of automotive transmission suitable for bus as described in claim 1, it is characterised in that: the two of the transmission shaft
End is installed in the correspondence positioning ring groove of first shell, second shell respectively by first bearing, second bearing.
5. a kind of automotive transmission suitable for bus as described in claim 1, it is characterised in that: the installation cavity
Bottom is fixed with oil discharge screw component.
6. a kind of automotive transmission suitable for bus as described in claim 1, it is characterised in that: the driving of the shift fork
It is stretched in the interior concave ring groove in the copper shoe that end passes through two sides, the top of the shift fork is fixed in described dial by fixing bolt
Fork shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811483911.9A CN109296734A (en) | 2018-12-06 | 2018-12-06 | A kind of automotive transmission suitable for bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811483911.9A CN109296734A (en) | 2018-12-06 | 2018-12-06 | A kind of automotive transmission suitable for bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109296734A true CN109296734A (en) | 2019-02-01 |
Family
ID=65142639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811483911.9A Pending CN109296734A (en) | 2018-12-06 | 2018-12-06 | A kind of automotive transmission suitable for bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109296734A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679916U (en) * | 2010-05-07 | 2010-12-22 | 中国第一汽车集团公司 | Two-gear gearbox assembly for electric bus |
| CN106195143A (en) * | 2016-08-31 | 2016-12-07 | 陕西法士特齿轮有限责任公司 | A kind of two grades of pure electric vehicles list duplex countershaft transmission |
| CN209539972U (en) * | 2018-12-06 | 2019-10-25 | 苏州绿控传动科技股份有限公司 | A kind of automotive transmission suitable for bus |
-
2018
- 2018-12-06 CN CN201811483911.9A patent/CN109296734A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679916U (en) * | 2010-05-07 | 2010-12-22 | 中国第一汽车集团公司 | Two-gear gearbox assembly for electric bus |
| CN106195143A (en) * | 2016-08-31 | 2016-12-07 | 陕西法士特齿轮有限责任公司 | A kind of two grades of pure electric vehicles list duplex countershaft transmission |
| CN209539972U (en) * | 2018-12-06 | 2019-10-25 | 苏州绿控传动科技股份有限公司 | A kind of automotive transmission suitable for bus |
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