CN114439935A - Gear-jumping gear shifting mechanism and control method thereof - Google Patents
Gear-jumping gear shifting mechanism and control method thereof Download PDFInfo
- Publication number
- CN114439935A CN114439935A CN202210029698.4A CN202210029698A CN114439935A CN 114439935 A CN114439935 A CN 114439935A CN 202210029698 A CN202210029698 A CN 202210029698A CN 114439935 A CN114439935 A CN 114439935A
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- Prior art keywords
- gear
- shifting
- groove
- locking
- gear shifting
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- 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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- 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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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- 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
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- 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
- F16H63/34—Locking or disabling mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention provides a gear-jumping and shifting mechanism which comprises a shifting shaft (1), wherein a plurality of shifting drums (2) are fixedly arranged on the shifting shaft (1), and a shifting groove (21) matched with a shifting fork (5) is concavely arranged on the side surface of each shifting drum (2); the method is characterized in that: a locking drum (3) is fixedly arranged on the gear shifting shaft (1) and positioned on one side of the gear shifting drum (2), a locking groove (31) matched with the locking piece (4) is concavely arranged on the side surface of the locking drum (3), the gear shifting groove (21) is a through groove in the circumferential direction, and the locking groove (31) is a non-through groove in the circumferential direction; when meeting the operating mode that needs emergency acceleration again after the emergency brake, can realize that the vehicle keeps off the position and directly hangs into suitable fender position after withdrawing from the highest gear, it is convenient to shift gears, and efficiency improves save time.
Description
Technical Field
The invention relates to the technical field of gear shifting mechanisms, in particular to a gear-skipping gear shifting mechanism and a control method thereof.
Background
At present, a transmission using a shift drum to shift gears generally belongs to sequential shifting, taking a four-gear transmission as an example, gear changes are sequentially switched from N (neutral) to 1, 2, 3, and 4 gears, and then sequentially switched back to 3, 2, 1, and N gears, but it cannot realize the gear shifting operation of directly switching 1 gear to 3 gear, directly switching 1 gear to 4 gear, directly switching 2 gear to 4 gear, or directly switching 4 gear to 2 gear, directly switching 4 gear to 1 gear, and directly switching 3 gear to 1 gear.
The defects of the prior art scheme are as follows: under some working conditions, after the vehicle is suddenly decelerated at the highest gear, the vehicle needs to continuously shift several gears to reach the proper gear matched with the current vehicle speed. If a sudden acceleration condition is required after sudden braking, the response speed of the sequential shift is obviously delayed.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides a gear-jumping and shifting mechanism and a control method thereof.
The technical scheme provided by the invention is as follows: a gear-jumping and shifting mechanism comprises a shifting shaft (1), wherein a plurality of shifting drums (2) are fixedly arranged on the shifting shaft (1), and a shifting groove (21) matched with a shifting fork (5) is concavely arranged on the side surface of each shifting drum (2); the gear shifting device is characterized in that a locking drum (3) is fixedly arranged on one side of the gear shifting drum (2) on the gear shifting shaft (1), a locking groove (31) matched with a locking piece (4) is concavely arranged on the side surface of the locking drum (3), the gear shifting groove (21) is a through groove in the circumferential direction, and the locking groove (31) is a non-through groove in the circumferential direction.
Furthermore, the gear shifting shaft (1) is integrally formed with the gear shifting drum (2) and the locking drum (3).
Further, the locking groove (31) is provided with a locking block (32) in the circumferential direction.
Furthermore, the gear shifting fork (5) extends into the gear shifting groove (21) and is matched with the gear shifting groove so that the gear shifting drum (2) can drive the gear shifting fork (5) to move up and down when rotating.
Further, the locking piece (4) can move up and down telescopically relative to the locking groove (31) to extend into the locking groove (31) or retract from the locking groove (31).
Furthermore, telescopic cylinder is selected for use in locking piece (4), telescopic cylinder includes cylinder body (41), is formed with stroke chamber (42) in the inside of cylinder body (41), and the bottom fixed connection one end of elastic component (44) in stroke chamber (42), piston rod (43) wear out and with the other end fixed connection of elastic component (44) from the inside in stroke chamber (42), piston rod (43) can be relative under the effect of elastic component (44) stroke chamber (42) the motion in order to stretch into in locking groove (31).
Further, an air inlet and outlet (45) is arranged on one side of the cylinder body (41).
Further, the opening and closing of the air inlet and outlet (45) are controlled by an electromagnetic valve.
A control method of the gear-skipping gear-shifting mechanism is also provided, and comprises the following steps:
1) when the gear is normally shifted, the electromagnetic valve controls the air inlet and outlet (45) to be closed, the telescopic cylinder (4) is not ventilated, the piston rod (43) is jacked up by the elastic piece (44) to extend into the locking groove (33), and the gear shifting shaft (1) drives the gear shifting hub (2) to synchronously rotate so as to drive the gear shifting fork (5) to shift gears in sequence;
2) when the gear is shifted in a skipping mode, the electromagnetic valve controls the air inlet and outlet (45) to be opened, the piston rod overcomes elastic force to exit from the locking groove (33) under the action of air pressure, and the gear shifting shaft (1) drives the gear shifting hub (2) to rotate synchronously so as to drive the gear shifting fork (5) to shift in a skipping mode.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention provides a gear-jumping and gear-shifting mechanism and a control method thereof, which can realize that a vehicle gear is directly engaged into a proper gear after being withdrawn from the highest gear in the working condition that emergency acceleration is needed after emergency braking, and have the advantages of convenient gear shifting, improved efficiency and time saving.
2) The invention provides a gear-jumping gear-shifting mechanism and a control method thereof, which can switch between sequential gear-shifting and gear-jumping gear-shifting according to actual gear-shifting requirements, are flexible in switching and wide in application range, and can meet gear-shifting requirements under different road conditions.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a side view of the structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; 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.
[ Prior Art ]
As shown in fig. 1, the gear shifting drum is a gear shifting drum adopted in the prior art, wherein the gear shifting groove of each gear shifting drum is isolated in the middle, the gear shifting drum rotates to drive the gear shifting forks in the gear shifting grooves to move axially synchronously, and the gear shifting can only be performed with gear shifting from the highest gear back one by one due to the isolation structure of the gear shifting grooves after the gearbox is shifted from the initial gear (generally neutral gear) to the highest gear. If the operating condition that the sudden acceleration is needed after the sudden braking is met, the response speed of the shifting structure of the sequential shift drum in the prior art is obviously delayed.
[ example 1]
As shown in fig. 2-3, the embodiment 1 provided by the present invention has the following specific schemes: a gear-skipping and gear-shifting mechanism comprises a gear shifting shaft 1, wherein a plurality of gear shifting drums 2 are fixedly arranged on the gear shifting shaft 1, and a locking drum 3 is fixedly arranged on the gear shifting shaft 1 and positioned on one side of each gear shifting drum 2; as a preferable scheme of the present embodiment, the shift shaft 1 is integrally formed with the shift drum 2 and the lock drum 3, so that the manufacturing and forming are facilitated, and the manufacturing cost is saved.
As shown in fig. 2, a shift groove 21 matched with the shift fork 5 is concavely arranged on the side surface of each shift drum 2; the side indent of locking drum 3 is provided with locking piece 4 complex locking groove 31, shift groove 21 is for lining up the groove on the circumferencial direction, locking groove 31 is for the non-slot that links up on the circumferencial direction, thereby shift groove 21 sets up to lining up the groove and can realize shifting the gear that jumps in the circumferencial direction, and locking groove 31 can realize the switching of order shifting and the gear shifting that jumps in the groove that links up for the non-slot that links up on the circumferencial direction, and the switching is nimble, and application scope is wide, can adapt to the demand of shifting under the different road conditions. During gear shifting, the gear shifting fork 5 extends into the gear shifting groove 21 and is matched with the gear shifting groove so that the gear shifting drum 2 can drive the gear shifting fork 5 to move up and down when rotating. When locked, the locking piece 4 can move up and down telescopically relative to the locking groove 31 to extend into the locking groove 31 to realize sequential gear shifting or retract from the locking groove 31 to realize gear skipping gear shifting.
As shown in fig. 2, the locking groove 31 is a non-through groove in the circumferential direction, and can be realized by providing the locking block 32 in the circumferential direction through the locking groove 31, the locking member 4 extends into the locking groove 31, the locking member 4 is blocked by the blocking block 32 when the locking drum 3 rotates, and the gear shifting can be realized only according to the prior art sequential gear shifting.
As shown in fig. 3, the locking member 4 in this embodiment is a telescopic cylinder, which includes a cylinder body 41, a stroke cavity 42 is formed inside the cylinder body 41, a bottom of the stroke cavity 42 is fixedly connected to one end of an elastic member 44, a piston rod 43 penetrates through the stroke cavity 42 and is fixedly connected to the other end of the elastic member 44, and the piston rod 43 can extend out and move relative to the stroke cavity 42 under the action of the elastic member 44 to extend into the locking groove 31; the elastic member 44 may be selected from elastic members such as springs commonly used in the art, and the specific selection of the elastic member should not be construed as further limiting the scope of the present application.
As shown in fig. 3, an air inlet and outlet 45 is provided at one side of the cylinder 41, and the opening and closing of the air inlet and outlet 45 is controlled by an electromagnetic valve; when the electromagnetic valve controls the air inlet and outlet 45 to be closed, the piston rod 43 is jacked up by the elastic piece 44 and extends into the locking groove 33 to realize locking, namely, a sequential gear shifting mode is adopted; when the electromagnetic valve controls the air inlet and outlet 45 to be opened, the piston rod is withdrawn from the locking groove 33 under the action of air pressure and overcomes the elastic force to realize unlocking, namely, the gear-skipping gear-shifting mode is adopted at the moment.
[ example 2]
The invention also provides a control method of the gear-jumping and shifting mechanism, which comprises the following steps:
1) during normal gear shifting, the electromagnetic valve controls the air inlet and outlet 45 to be closed, the telescopic cylinder 4 is not ventilated, the piston rod 43 is jacked up by the elastic piece 44 to extend into the locking groove 33, and the gear shifting shaft 1 drives the gear shifting hub 2 to synchronously rotate so as to drive the gear shifting fork 5 to perform sequential gear shifting;
2) when the gear is shifted in the gear skipping, the electromagnetic valve controls the air inlet and outlet 45 to be opened, the piston rod overcomes elastic force to exit the locking groove 33 under the action of air pressure, and the gear shifting shaft 1 drives the gear shifting hub 2 to synchronously rotate so as to drive the gear shifting fork 5 to shift in the gear skipping mode.
By adopting the scheme, when the vehicle meets the working condition that the vehicle needs to be accelerated after sudden braking, the gear of the vehicle can be directly hung into a proper gear after being withdrawn from the highest gear, the gear shifting is convenient, the efficiency is improved, and the time is saved; simultaneously through the setting of locking drum can also shift according to the needs of actually shifting gears and shift to jump the fender between according to the needs, switch in a flexible way, application scope is wide, can adapt to the demand of shifting gears under the different road conditions.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the scope of the claims.
Claims (9)
1. A gear-jumping and shifting mechanism comprises a shifting shaft (1), wherein a plurality of shifting drums (2) are fixedly arranged on the shifting shaft (1), and a shifting groove (21) matched with a shifting fork (5) is concavely arranged on the side surface of each shifting drum (2); the method is characterized in that: the gear shifting device is characterized in that a locking drum (3) is fixedly arranged on one side of the gear shifting drum (2) on the gear shifting shaft (1), a locking groove (31) matched with a locking piece (4) is concavely arranged on the side surface of the locking drum (3), the gear shifting groove (21) is a through groove in the circumferential direction, and the locking groove (31) is a non-through groove in the circumferential direction.
2. The skip shiftable shifting mechanism of claim 1, wherein: the gear shifting shaft (1), the gear shifting drum (2) and the locking drum (3) are integrally formed.
3. The skip shiftable shifting mechanism of claim 1, wherein: the locking groove (31) is provided with a locking block (32) in the circumferential direction.
4. The skip shiftable shifting mechanism of claim 1, wherein: the gear shifting fork (5) extends into the gear shifting groove (21) and is matched with the gear shifting groove so that the gear shifting drum (2) can drive the gear shifting fork (5) to move up and down when rotating.
5. The skip shiftable shifting mechanism of claim 1, wherein: the locking piece (4) can move up and down telescopically relative to the locking groove (31) so as to extend into the locking groove (31) or retract from the locking groove (31).
6. The skip shiftable shifting mechanism of claim 1, wherein: the utility model discloses a locking piece, including locking piece (4), telescopic cylinder includes cylinder body (41), is formed with stroke chamber (42) in the inside of cylinder body (41), the one end of bottom fixed connection elastic component (44) in stroke chamber (42), piston rod (43) wear out and with the other end fixed connection of elastic component (44) from the inside in stroke chamber (42), piston rod (43) can be relative under the effect of elastic component (44) stroke chamber (42) stretch out the motion in order to stretch into in locking groove (31).
7. The skip shiftable shifting mechanism of claim 6, wherein: and an air inlet and outlet (45) is arranged on one side of the cylinder body (41).
8. The skip shiftable shifting mechanism of claim 7, wherein: the opening and closing of the air inlet and outlet (45) are controlled by an electromagnetic valve.
9. A control method of a gear-skipping gear-shifting mechanism is characterized in that: the method comprises the following steps:
1) when the gear is normally shifted, the electromagnetic valve controls the air inlet and outlet (45) to be closed, the telescopic cylinder (4) is not ventilated, the piston rod (43) is jacked up by the elastic piece (44) to extend into the locking groove (33), and the gear shifting shaft (1) drives the gear shifting hub (2) to synchronously rotate so as to drive the gear shifting fork (5) to shift gears in sequence;
2) when the gear is shifted in a skipping mode, the electromagnetic valve controls the air inlet and outlet (45) to be opened, the piston rod overcomes elastic force to exit from the locking groove (33) under the action of air pressure, and the gear shifting shaft (1) drives the gear shifting hub (2) to rotate synchronously so as to drive the gear shifting fork (5) to shift in a skipping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029698.4A CN114439935B (en) | 2022-01-11 | 2022-01-11 | Gear-shifting mechanism capable of jumping and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029698.4A CN114439935B (en) | 2022-01-11 | 2022-01-11 | Gear-shifting mechanism capable of jumping and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114439935A true CN114439935A (en) | 2022-05-06 |
| CN114439935B CN114439935B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210029698.4A Active CN114439935B (en) | 2022-01-11 | 2022-01-11 | Gear-shifting mechanism capable of jumping and control method thereof |
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| Country | Link |
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| CN (1) | CN114439935B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992881A (en) * | 2023-02-02 | 2023-04-21 | 特百佳动力科技股份有限公司 | Gear shifting mechanism, transmission and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214215A (en) * | 2004-01-27 | 2005-08-11 | Hitachi Ltd | Transmission |
| CN104265874A (en) * | 2014-09-30 | 2015-01-07 | 东风汽车公司 | Gear shifting control device of electronic control actuator |
| JP2015081634A (en) * | 2013-10-22 | 2015-04-27 | トヨタ自動車株式会社 | Drum type transmission |
| CN205244353U (en) * | 2015-12-24 | 2016-05-18 | 重庆隆旺机电有限责任公司 | Variable speed drum gearshift |
| WO2021122831A1 (en) * | 2019-12-19 | 2021-06-24 | Magna Pt B.V. & Co. Kg | Gear shift drum assembly for a shift device of a transmission assembly |
-
2022
- 2022-01-11 CN CN202210029698.4A patent/CN114439935B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214215A (en) * | 2004-01-27 | 2005-08-11 | Hitachi Ltd | Transmission |
| JP2015081634A (en) * | 2013-10-22 | 2015-04-27 | トヨタ自動車株式会社 | Drum type transmission |
| CN104265874A (en) * | 2014-09-30 | 2015-01-07 | 东风汽车公司 | Gear shifting control device of electronic control actuator |
| CN205244353U (en) * | 2015-12-24 | 2016-05-18 | 重庆隆旺机电有限责任公司 | Variable speed drum gearshift |
| WO2021122831A1 (en) * | 2019-12-19 | 2021-06-24 | Magna Pt B.V. & Co. Kg | Gear shift drum assembly for a shift device of a transmission assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992881A (en) * | 2023-02-02 | 2023-04-21 | 特百佳动力科技股份有限公司 | Gear shifting mechanism, transmission and vehicle |
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| Publication number | Publication date |
|---|---|
| CN114439935B (en) | 2023-05-30 |
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