CN113202907A - Gearbox and gear shifting method - Google Patents

Gearbox and gear shifting method Download PDF

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Publication number
CN113202907A
CN113202907A CN202110661395.XA CN202110661395A CN113202907A CN 113202907 A CN113202907 A CN 113202907A CN 202110661395 A CN202110661395 A CN 202110661395A CN 113202907 A CN113202907 A CN 113202907A
Authority
CN
China
Prior art keywords
gear
synchronizer
assembly
input
power
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
Application number
CN202110661395.XA
Other languages
Chinese (zh)
Inventor
多良
袁景敏
田朋波
杨嘉韵
吴红伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaxing Shite Vehicle Intelligent Technology Co ltd
Original Assignee
Jiaxing Shite Vehicle Intelligent Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiaxing Shite Vehicle Intelligent Technology Co ltd filed Critical Jiaxing Shite Vehicle Intelligent Technology Co ltd
Priority to CN202110661395.XA priority Critical patent/CN113202907A/en
Publication of CN113202907A publication Critical patent/CN113202907A/en
Pending legal-status Critical Current

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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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/091—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • F16H2003/123—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches using a brake

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention relates to the technical field of automobiles, in particular to a gearbox and a gear shifting method, wherein the gearbox comprises a box body; the power input assembly is rotatably arranged on the box body; the power transmission assembly is rotatably arranged on the box body and is in transmission connection with the power input assembly; the power output assembly is rotatably arranged on the box body, one end of the power output assembly extends out of the box body, and the power output assembly is in transmission connection with the power transmission assembly; a brake disposed on the power transmission assembly; a synchronizer group disposed on the power take-off assembly. The invention can effectively reduce the abrasion to the synchronizer, eliminate the gear beating phenomenon of the automatic gearbox without the synchronizer under special working conditions, and improve the reliability and the gear shifting comfort of the automatic gearbox.

Description

Gearbox and gear shifting method
Technical Field
The invention relates to the technical field of automobiles, in particular to a gearbox and a gear shifting method.
Background
The manual transmission of the commercial vehicle is synchronized by a synchronizer and then is shifted, so that the problem that the service life of the whole manual transmission is shortened due to the fact that the synchronizer is easy to damage exists in the manual transmission; the traditional automatic transmission (AMT) of the commercial vehicle brakes and decelerates and the engine accelerates through a brake (TB) of the transmission controlled by an electric control unit to automatically regulate the speed so as to achieve the synchronization of the rotating speed, so that a synchronizer is omitted in a main box of the traditional automatic transmission, a sliding sleeve structure is adopted, and the automatic transmission adopting the sliding sleeve structure can have the phenomenon of gear beating under the special working condition of the vehicle.
Therefore, a transmission and a shifting method are needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a gearbox and a gear shifting method, which can effectively reduce the abrasion to a synchronizer, eliminate the gear beating phenomenon of an automatic gearbox without the synchronizer under special working conditions, and improve the reliability and gear shifting comfort of the automatic gearbox.
In order to achieve the purpose, the invention adopts the following technical scheme:
a transmission, comprising:
a box body;
the power input assembly is rotatably arranged on the box body;
the power transmission assembly is rotatably arranged on the box body and is in transmission connection with the power input assembly;
the power output assembly is rotatably arranged on the box body, one end of the power output assembly extends out of the box body, and the power output assembly is in transmission connection with the power transmission assembly;
a brake disposed on the power transmission assembly;
a synchronizer group disposed on the power take-off assembly.
Further, the power input assembly comprises an input shaft, the input shaft is rotatably arranged on the box body, an input gear is fixedly arranged on the input shaft, and the input gear is in transmission connection with the power transmission assembly.
Furthermore, the power transmission assembly comprises an intermediate shaft, a power transmission gear and a gear input gear set, the intermediate shaft is rotatably arranged on the box body, the brake is arranged on the intermediate shaft, the power transmission gear and the gear input gear set are fixedly arranged on the intermediate shaft, the power transmission gear is meshed with the input gear, and the gear input gear set is in transmission connection with the power output assembly.
Further, power take off subassembly includes output shaft and fender position output gear set, the output shaft rotates to set up on the box, and one end is relative the box stretches out, the synchronizer group with fender position output gear set all sets up on the output shaft, fender position output gear set with keep off position input gear set meshing.
Further, the gear input gear set comprises a first driving gear, the gear output gear set comprises a first driven gear, the synchronizer set comprises a first synchronizer, the first driving gear is meshed with the first driven gear, and the first synchronizer enables the first driven gear to be combined with the output shaft.
Further, the gear input gear set comprises a second driving gear, the gear output gear set comprises a second driven gear, the first synchronizer is located between the first driven gear and the second driven gear, the second driving gear is meshed with the second driven gear, and the first synchronizer enables the second driven gear to be combined with the output shaft.
Further, the gear input gear set comprises a third driving gear, the gear output gear set comprises a third driven gear, the synchronizer set comprises a second synchronizer, the third driving gear is meshed with the third driven gear, and the second synchronizer enables the third driven gear to be combined with the output shaft.
Further, the gear input gear set comprises a fourth driving gear, the gear output gear set comprises a fourth driven gear, the second synchronizer is located between the third driven gear and the fourth driven gear, the fourth driving gear is meshed with the fourth driven gear, and the second synchronizer enables the fourth driven gear to be combined with the output shaft.
Further, the gear input gear set comprises a fifth driving gear, the gear output gear set comprises a fifth driven gear, the synchronizer set comprises a third synchronizer, the fifth driving gear is meshed with the fifth driven gear, and the third synchronizer enables the fifth driven gear to be combined with the output shaft.
A method of shifting a gearbox using a gearbox as described above, comprising the steps of:
s1, when the TCU detects that gear shifting is needed, the engine is turned down, the clutch is opened, and the gear picking process is started;
and S2, entering a speed regulation stage after neutral, sending an instruction to the electromagnetic valve by the TCU, switching on the electromagnetic valve to an external air source control brake, regulating the speed of the intermediate shaft by the brake to a first set value, carrying out a gear engaging instruction, and completing the speed synchronization of the output shaft by the synchronizer group.
The invention has the beneficial effects that:
the invention provides a gearbox and a gear shifting method.A power input assembly, a power transmission assembly and a power output assembly are rotatably arranged on a box body, wherein the power input assembly is in transmission connection with the power transmission assembly, the power transmission assembly is in transmission connection with the power output assembly, a brake is arranged on the power transmission assembly, and a synchronizer group is arranged on the power output assembly. And when the gear shifting is performed, the brake is controlled to brake the power transmission assembly, when the rotating speed of the power transmission assembly is close to a target rotating speed value, the synchronizer is controlled to perform final speed synchronization, and finally the gear shifting of the gearbox is completed. In this way, utilize automatically controlled advantage to reduce the wearing and tearing of synchronizer group relatively manual transmission on the one hand, improve the reliability of gearbox, on the other hand, through using synchronizer group, avoid appearing shifting the in-process and beat the tooth phenomenon, improved the travelling comfort of shifting.
Drawings
FIG. 1 is a schematic representation of a transmission of the present invention.
In the figure:
1. a power input assembly; 11. an input shaft; 12. an input gear; 2. a power transfer assembly; 21. an intermediate shaft; 22. a power transmission gear; 23. a first drive gear; 24. a second driving gear; 25. a third driving gear; 26. a fourth driving gear; 27. a fifth driving gear; 28. a reverse drive gear; 3. a power take-off assembly; 31. an output shaft; 32. a first driven gear; 33. a second driven gear; 34. a third driven gear; 35. a fourth driven gear; 36. a fifth driven gear; 37. a reverse driven gear; 38. a reversing gear; 4. a brake; 5. a first synchronizer; 6. a second synchronizer; 7. a third synchronizer; 8. solenoid valve, 9, TCU.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In order to effectively reduce the abrasion to a synchronizer, eliminate the gear beating phenomenon of an automatic gearbox without the synchronizer under special working conditions and improve the reliability and gear shifting comfort of the automatic gearbox, as shown in figure 1, the invention provides a gearbox. This gearbox includes: the power output assembly 3, the brake 4 and the synchronizer group are arranged on the box body.
Wherein, the power input component 1 is rotationally arranged on the box body; the power transmission assembly 2 is rotatably arranged on the box body, and the power transmission assembly 2 is in transmission connection with the power input assembly 1; the power output assembly 3 is rotatably arranged on the box body, one end of the power output assembly extends out relative to the box body, and the power output assembly is in transmission connection with the power transmission assembly 2; the brake 4 is arranged on the power transmission assembly 2; the synchronizer group is provided on the power take-off assembly 3.
And when the gear is shifted, the brake 4 is controlled to brake the power transmission assembly 2, and when the rotating speed of the power transmission assembly 2 is close to the target rotating speed value, the synchronizer is controlled to carry out final speed synchronization, so that the gear shifting of the gearbox is finally completed. In this way, utilize automatically controlled advantage to reduce the wearing and tearing of synchronizer group relatively manual transmission on the one hand, improve the reliability of gearbox, on the other hand, through using synchronizer group, avoid appearing shifting the in-process and beat the tooth phenomenon, improved the travelling comfort of shifting.
Further, the power input assembly 1 comprises an input shaft 11, the input shaft 11 is rotatably arranged on the box body, an input gear 12 is fixedly arranged on the input shaft 11, and the input gear 12 is in transmission connection with the power transmission assembly 2. Specifically, the input shaft 11 is connected to an engine of an automobile to realize power input.
Further, the power transmission assembly 2 comprises an intermediate shaft 21, a power transmission gear 22 and a gear input gear set, the intermediate shaft 21 is rotatably arranged on the box body, the brake 4 is arranged on the intermediate shaft 21, the power transmission gear 22 and the gear input gear set are both fixedly arranged on the intermediate shaft 21, the power transmission gear 22 is meshed with the input gear 12, and the gear input gear set is in transmission connection with the power output assembly 3. When the brake 4 shifts gears, the rotation speed of the intermediate shaft 21 can be controlled, so that speed regulation is realized, power is transmitted from the input shaft 11 to the intermediate shaft 21 by meshing the power transmission gear 22 with the input gear 12, and the intermediate shaft 21 transmits the power to the power output assembly 3 by the gear input gear set.
Further, the power output assembly 3 includes an output shaft 31 and a gear output gear set, the output shaft 31 is rotatably disposed on the box body, and one end of the output shaft extends out relative to the box body, the synchronizer set and the gear output gear set are both disposed on the output shaft 31, and the gear output gear set is meshed with the gear input gear set. Specifically, the gear output gear set is idly sleeved on the output shaft 31, and when gear shifting is required, the corresponding synchronizer is controlled to be connected with the corresponding gear output gear, so that the corresponding gear can be correspondingly engaged.
In particular, the gear input set comprises a first driving gear 23, the gear output set comprises a first driven gear 32, the synchronizer group comprises a first synchronizer 5, the first driving gear 23 meshes with the first driven gear 32, the first synchronizer 5 is able to couple the first driven gear 32 with the output shaft 31. When a first gear is engaged, the first synchronizer 5 is controlled to complete final speed synchronization, so that the first driven gear 32 is connected with the output shaft 31 through the first synchronizer 5, and power output is realized.
Further, the gear input gear set comprises a second driving gear 24, the gear output gear set comprises a second driven gear 33, the first synchronizer 5 is located between the first driven gear 32 and the second driven gear 33, the second driving gear 24 is meshed with the second driven gear 33, and the first synchronizer 5 is capable of combining the second driven gear 33 with the output shaft 31. When the second gear is hung, the first synchronizer 5 and the second driven gear 33 are controlled to be combined to complete the final speed synchronization, so that the second driven gear 33 is connected with the output shaft 31 through the first synchronizer 5, and the power output is realized.
Further, the gear input gear set comprises a third driving gear 25, the gear output gear set comprises a third driven gear 34, the synchronizer set comprises a second synchronizer 6, the third driving gear 25 is meshed with the third driven gear 34, and the second synchronizer 6 can combine the third driven gear 34 with the output shaft 31. When the third gear is engaged, the second synchronizer 6 is controlled to be combined with the third driven gear 34 to complete the final speed synchronization, so that the third driven gear 34 is connected with the output shaft 31 through the second synchronizer 6, and the power output is realized.
Further, the gear input gear set comprises a fourth driving gear 26, the gear output gear set comprises a fourth driven gear 35, the second synchronizer 6 is located between the third driven gear 34 and the fourth driven gear 35, the fourth driving gear 26 is meshed with the fourth driven gear 35, and the second synchronizer 6 is capable of combining the fourth driven gear 35 with the output shaft 31. When the fourth gear is engaged, the second synchronizer 6 and the fourth driven gear 35 are controlled to be combined to complete final speed synchronization, so that the fourth driven gear 35 is connected with the output shaft 31 through the second synchronizer 6, and power output is realized.
Further, the gear input gear set comprises a fifth driving gear 27, the gear output gear set comprises a fifth driven gear 36, the synchronizer group comprises a third synchronizer 7, the fifth driving gear 27 is meshed with the fifth driven gear 36, and the third synchronizer 7 can enable the fifth driven gear 36 to be combined with the output shaft 31. When the fifth gear is engaged, the third synchronizer 7 is controlled to be combined with the fifth driven gear 36 to complete the final speed synchronization, so that the fifth driven gear 36 is connected with the output shaft 31 through the third synchronizer 7, and the power output is realized.
Further, the gear input gear set comprises a reverse driving gear 28, the gear output gear set comprises a reverse driven gear 37, the third synchronizer 7 is located between the fifth driven gear 36 and the reverse driven gear 37, the reverse driving gear 28 is meshed with the reverse driven gear 37 through a reversing gear 38, and the third synchronizer 7 is capable of combining the reverse driven gear 37 with the output shaft 31. The reversing gear 38 is arranged to change the rotating direction of the reverse driven gear 37, and further the rotating direction of the output shaft 31, so that power output is realized.
The embodiment also provides a gear shifting method of a gearbox, which uses the gearbox to shift gears, and comprises the following steps:
s1, when a Transmission Control Unit (TCU) 9 detects that gear shifting is needed, an engine is subjected to torque reduction, a clutch is opened at the same time, and a gear picking process is started;
and S2, in the speed regulation stage after neutral, the TCU9 sends an instruction to the electromagnetic valve 8, the electromagnetic valve 8 is connected with an external air source control brake 4, the brake 4 regulates the speed of the intermediate shaft 21 to a first set value, a gear engaging instruction is carried out, and the synchronizer group completes the speed synchronization of the output shaft. Specifically, the brake 4 completes 70% of the speed adjustment of the intermediate shaft 31, and then the subsequent 30% speed synchronization is completed by the synchronizer group, and the gear shifting is completed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A transmission, comprising:
a box body;
the power input assembly (1), the said power input assembly (1) is set up on the said container body rotatably;
the power transmission assembly (2) is rotatably arranged on the box body, and the power transmission assembly (2) is in transmission connection with the power input assembly (1);
the power output assembly (3) is rotatably arranged on the box body, one end of the power output assembly extends out relative to the box body, and the power output assembly is in transmission connection with the power transmission assembly (2);
a brake (4), the brake (4) being disposed on the power transmission assembly (2);
a synchronizer group provided on the power take-off assembly (3).
2. A gearbox according to claim 1, characterised in that said power input assembly (1) comprises an input shaft (11), said input shaft (11) being rotatably arranged on said casing, said input shaft (11) being fixedly provided with an input gear (12), said input gear (12) being in driving connection with said power transfer assembly (2).
3. A gearbox according to claim 2, in which said power transfer assembly (2) comprises an intermediate shaft (21), a power transfer gear (22) and a gear input gear set, said intermediate shaft (21) being rotatably arranged on said casing, said brake (4) being arranged on said intermediate shaft (21), said power transfer gear (22) and said gear input gear set being both fixedly arranged on said intermediate shaft (21), said power transfer gear (22) being in engagement with said input gear (12), said gear input gear set being in driving connection with said power take-off assembly (3).
4. A gearbox according to claim 3, in which said power take-off assembly (3) comprises an output shaft (31) and a gear output gearset, said output shaft (31) being rotatably arranged on said casing and having one end projecting with respect to said casing, said synchronizer group and said gear output gearset being both arranged on said output shaft (31), said gear output gearset being in mesh with said gear input gearset.
5. A gearbox according to claim 4, in which said gear input gearset comprises a first driving gear (23), said gear output gearset comprises a first driven gear (32), said synchronizer group comprises a first synchronizer (5), said first driving gear (23) being in mesh with said first driven gear (32), said first synchronizer (5) being able to couple said first driven gear (32) with said output shaft (31).
6. A gearbox according to claim 5, in which said gear input gearset comprises a second driving gear (24), said gear output gearset comprises a second driven gear (33), said first synchronizer (5) is located between said first driven gear (32) and said second driven gear (33), said second driving gear (24) is in mesh with said second driven gear (33), said first synchronizer (5) is capable of engaging said second driven gear (33) with said output shaft (31).
7. A gearbox according to claim 4, in which said gear input gearset comprises a third driving gear (25), said gear output gearset comprises a third driven gear (34), said synchronizer group comprises a second synchronizer (6), said third driving gear (25) being in mesh with said third driven gear (34), said second synchronizer (6) being able to couple said third driven gear (34) with said output shaft (31).
8. A gearbox according to claim 7, in which said gear input gearset comprises a fourth driving gear (26), said gear output gearset comprises a fourth driven gear (35), said second synchronizer (6) is located between said third driven gear (34) and said fourth driven gear (35), said fourth driving gear (26) is in mesh with said fourth driven gear (35), said second synchronizer (6) is capable of engaging said fourth driven gear (35) with said output shaft (31).
9. A gearbox according to claim 4, in which said gear input gearset comprises a fifth driving gear (27), said gear output gearset comprises a fifth driven gear (36), said synchronizer group comprises a third synchronizer (7), said fifth driving gear (27) being in mesh with said fifth driven gear (36), said third synchronizer (7) being able to couple said fifth driven gear (36) to said output shaft (31).
10. A method of shifting a gearbox, using a gearbox according to any of claims 1-9, comprising the steps of:
s1, when the TCU (9) detects that gear shifting is needed, the engine is turned down, and meanwhile, the clutch is opened to enter a gear disengaging process;
and S2, in a speed regulation stage after neutral gear, the TCU (9) sends an instruction to the electromagnetic valve (8), the electromagnetic valve (8) is connected with an external air source control brake (4), the brake (4) regulates the speed of the intermediate shaft (21) to a first set value, a gear engaging instruction is carried out, and the synchronizer group completes the speed synchronization of the output shaft (31).
CN202110661395.XA 2021-06-15 2021-06-15 Gearbox and gear shifting method Pending CN113202907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110661395.XA CN113202907A (en) 2021-06-15 2021-06-15 Gearbox and gear shifting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110661395.XA CN113202907A (en) 2021-06-15 2021-06-15 Gearbox and gear shifting method

Publications (1)

Publication Number Publication Date
CN113202907A true CN113202907A (en) 2021-08-03

Family

ID=77024677

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110661395.XA Pending CN113202907A (en) 2021-06-15 2021-06-15 Gearbox and gear shifting method

Country Status (1)

Country Link
CN (1) CN113202907A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117823580A (en) * 2024-03-06 2024-04-05 山东福尔沃农业装备股份有限公司 Five-order automatic power gear shifting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117823580A (en) * 2024-03-06 2024-04-05 山东福尔沃农业装备股份有限公司 Five-order automatic power gear shifting system
CN117823580B (en) * 2024-03-06 2024-05-24 山东福尔沃农业装备股份有限公司 Five-order automatic power gear shifting system

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