CN116292881A - Gear shifting mechanism of gearbox - Google Patents
Gear shifting mechanism of gearbox Download PDFInfo
- Publication number
- CN116292881A CN116292881A CN202310191795.8A CN202310191795A CN116292881A CN 116292881 A CN116292881 A CN 116292881A CN 202310191795 A CN202310191795 A CN 202310191795A CN 116292881 A CN116292881 A CN 116292881A
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- shifting
- shifting fork
- gear
- fork shaft
- shaft
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 8
- 230000007547 defect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0278—Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing
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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
-
- 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
- F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a gearbox gear-shifting mechanism, which comprises a gear-shifting seat, wherein a cylinder seat A and a cylinder seat B are arranged on the gear-shifting seat, a gear-shifting rod and a gear-shifting shaft A which are vertically arranged are arranged in the cylinder seat A, the gear-shifting rod can move along the vertical direction and can rotate, a gear-shifting block A is arranged at the bottom end of the gear-shifting rod, the gear-shifting rod drives the gear-shifting block A to move along the vertical direction, the gear-shifting block A realizes the switching among a shifting fork A, a shifting fork B and a shifting fork C, and the gear-shifting rod drives the gear-shifting block A to rotate so that the shifting fork A, the shifting fork B, the shifting fork C and the shifting fork C move on a straight line to shift gears; and a vertical gear shifting shaft B is arranged in the cylinder seat B, and the gear shifting shaft B realizes high-low speed switching. According to the gear box gear-shifting mechanism, 12 gears can be switched through the two operating levers, the two shifting fork shafts are interlocked, and the operation is more stable.
Description
Technical Field
The invention relates to a gearbox gear-shifting mechanism, and belongs to the technical field of speed-shifting operation.
Background
The gearbox can change the transmission ratio, expands the variation range of the torque and the rotation speed of the driving wheel so as to adapt to the running condition which is changed frequently, and simultaneously enables the engine to work under the working condition which is favorable (higher power and lower oil consumption). The gearbox is typically provided with a plurality of different gears to output different gear ratios. The gearbox comprises a gear shifting mechanism, and the gear shifting mechanism is used for realizing the switching of different gears.
At present, a gear-shifting mechanism of a tractor gearbox needs at least 3 control levers to control the gear-shifting mechanism to realize the replacement of 12 gears, and the operation is complicated. Each shifting fork shaft needs to be controlled by one control rod, so that at least 3 control rods are needed to control the shifting fork shafts, and the two shifting fork shafts are needed to be interlocked respectively, so that the structure is complex, and the operation is unstable.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a gear box gear-shifting mechanism, which can realize the switching between 12 gears through two operating levers, and the interlocking between every two shifting fork shafts is more stable in operation.
In order to solve the technical problems, the invention adopts the following technical scheme:
the gear box gear shifting mechanism comprises a gear shifting seat, wherein a cylinder seat A and a cylinder seat B are arranged on the gear shifting seat, a gear shifting rod and a gear shifting shaft A which are vertically arranged are arranged in the cylinder seat A, the gear shifting rod can move along the vertical direction and also can rotate, a gear shifting block A is arranged at the bottom end of the gear shifting rod, the gear shifting rod drives the gear shifting block A to move along the vertical direction, the gear shifting block A realizes the switching among a shifting fork A, a shifting fork B and a shifting fork C, and the gear shifting rod drives the gear shifting block A to rotate so that the shifting fork A, the shifting fork B, the shifting fork shaft B, the shifting fork C and the shifting fork shaft C move on a straight line to shift gears; and a vertical gear shifting shaft B is arranged in the cylinder seat B, and the gear shifting shaft B realizes high-low speed switching.
Preferably, the gear lever is arranged along the vertical direction, and a ring groove is formed in the gear lever;
the end part of the gear shifting shaft A, which is close to the gear shifting rod, is provided with a rotary shifting block, and the free end of the rotary shifting block is arranged in the annular groove.
Preferably, four parallel-arranged shifting fork shafts are arranged at the bottom of the gear engaging seat, two ends of each shifting fork shaft are arranged in the support, and the number of the support is multiple.
Preferably, the four shifting fork shafts are a shifting fork shaft A, a shifting fork shaft B, a shifting fork shaft C and a shifting fork shaft D respectively, wherein the shifting fork shaft A, the shifting fork shaft B and the shifting fork shaft C are distributed in a triangle shape, and the shifting fork shaft C is positioned right below the shifting fork shaft A;
the shifting fork shaft A, the shifting fork shaft B and the shifting fork shaft C are in sliding connection with the support, and the shifting fork shaft D is fixedly connected with the support.
Preferably, a shifting fork A is fixed on the shifting fork shaft A, a shifting fork B is fixed on the shifting fork shaft B, a shifting fork C is fixed on the shifting fork shaft C, and a shifting fork D is slidably arranged on the shifting fork shaft D.
Preferably, a shifting groove is arranged at the top of the shifting fork B, the shifting groove is positioned between a shifting fork shaft A and a shifting fork shaft C which are arranged up and down, a shifting groove is arranged below the shifting fork shaft A, and a shifting groove is arranged above the shifting fork shaft C; the three poking grooves are arranged along the vertical direction; the gear shifting block A is matched with the shifting fork B, the shifting fork shaft A and the shifting groove on the shifting fork shaft C.
Preferably, a shifting groove is formed in the shifting fork D; the bottom of the gear shifting shaft B is provided with a gear shifting block B, and the free end of the gear shifting block B is positioned in a shifting groove of the shifting fork D.
Preferably, three shift grooves are formed in the shifting fork shaft A, the shifting fork shaft B, the shifting fork shaft C and the shifting fork shaft D, the middle shift groove is a neutral gear groove, and the shift grooves on two sides are a 1-gear groove and a 2-gear groove respectively;
the shifting fork shaft A, the shifting fork shaft B, the shifting fork shaft C and the shifting fork shaft D are respectively provided with a self-locking spring and a self-locking steel ball which correspond to the self-locking springs.
Preferably, the self-locking springs and the self-locking steel balls corresponding to the shifting fork shaft A, the shifting fork shaft B and the shifting fork shaft C are arranged in the support;
the corresponding self-locking spring and self-locking steel ball on the shifting fork shaft D are arranged in the shifting fork D.
Preferably, the positions of the neutral gear grooves on the shifting fork shaft A, the shifting fork shaft B and the shifting fork shaft C are respectively provided with an interlocking groove, wherein the shifting fork shaft A and the shifting fork shaft C are respectively provided with an interlocking groove, the shifting fork shaft B is provided with two interlocking grooves, and interlocking steel balls are respectively arranged between the interlocking grooves of the shifting fork shaft A and the shifting fork shaft B and between the interlocking grooves of the shifting fork shaft B and the interlocking grooves of the shifting fork shaft C.
After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:
the high-low gear is switched through the gear shifting shaft B, and the gear shifting block B is driven by the rotation of the gear shifting shaft B to enable the shifting fork D to move on the shifting fork shaft D, so that the high-gear and low-gear are switched.
The gear shifting shaft A and the gear shifting rod can be used for completing the switching of 6 gears, the working state of the gear shifting rod can move along the vertical direction and simultaneously can rotate on a plane, and the gear shifting shaft A can only rotate.
According to the invention, 12 gears can be switched by only two operating levers, firstly, the gear shifting shaft A and the gear shifting lever are finally combined on one operating lever to be operated to finish gear shifting, and secondly, the gear shifting shaft B is operated by one operating lever to realize high-low speed switching.
Interlocking steel balls are arranged between the shifting fork shafts A and B and between the shifting fork shafts B and C, interlocking between every two shifting fork shafts is realized through the interlocking steel balls, the shifting fork shafts A, B and C are mutually independent, can be freely put into gear, and are more stable in operation than before.
The invention will now be described in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;
FIG. 3 is a front elevational view of the structure of the present invention;
FIG. 4 is a top plan view of the structure of the present invention;
FIG. 5 is a schematic cross-sectional view of the mount at A-A in FIG. 3;
FIG. 6 is a schematic cross-sectional view at B-B in FIG. 4;
FIG. 7 is a schematic view of fork axes I, II, III and the fork mounted thereto;
FIG. 8 is a schematic view of the structure of FIG. 7 in another direction;
FIG. 9 is a structural perspective view of the shift register;
FIG. 10 is a schematic view of the shift holder in another direction;
fig. 11 is a schematic diagram of 12 gear alternative principle in the present invention.
In the figure, a 1-gear engaging seat, a 101-cylinder seat A, a 102-cylinder seat B and a 103-support; 2-gear lever, 201-ring groove; 3-shift shaft A; 4-shifting a shifting block A; 5-a shift rail a; 6-a shift fork shaft B; 7-a shift rail C; 8-shifting fork A, 9-shifting fork B; 10-shifting fork C; 11-a shift shaft B; 12-a gear shifting block B; 13-a fork shaft D; 14-shifting fork D; 15-a gear shifting groove; 16-interlocking grooves; 17-a self-locking spring; 18-self-locking steel balls; 19-interlocking steel balls; 20-turning the dial.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-10 together, the invention provides a gear box gear-shifting mechanism, which comprises a gear-shifting seat 1, wherein a cylinder seat a101 and a cylinder seat B102 are arranged on the gear-shifting seat 1, a gear-shifting rod 2 and a gear-shifting shaft A3 which are vertically arranged are arranged in the cylinder seat a101, the gear-shifting rod 2 can move along the vertical direction and can rotate, and a gear-shifting shaft B11 which is vertically arranged is arranged in the cylinder seat B102.
The gear lever 2 is arranged along the vertical direction, and the gear lever 2 is provided with a ring groove 201.
The end of the gear shifting shaft A3, which is close to the gear shifting lever 2, is provided with a rotary shifting block 20, and the free end of the rotary shifting block 20 is arranged in the annular groove 201. The shift shaft A3 moves the shift lever 2 in the vertical direction by rotating the dial block 20 during rotation.
Four parallel-arranged shifting fork shafts are arranged at the bottom of the gear engaging seat 1, two ends of each shifting fork shaft are arranged in the support 103, and the number of the support 103 is multiple.
The four shifting fork shafts are a shifting fork shaft A5, a shifting fork shaft B6, a shifting fork shaft C7 and a shifting fork shaft D13 respectively, wherein the shifting fork shaft A5, the shifting fork shaft B6 and the shifting fork shaft C7 are distributed in a triangle shape, and the shifting fork shaft C7 is positioned right below the shifting fork shaft A5.
The shifting fork shaft A5, the shifting fork shaft B6 and the shifting fork shaft C7 are in sliding connection with the support 103, and all three shifting fork shafts can move left and right under the supporting effect of the support 103.
A shifting fork A8 is fixed on the shifting fork shaft A5, a shifting fork B9 is fixed on the shifting fork shaft B6, and a shifting fork C10 is fixed on the shifting fork shaft C7.
The top of shift fork B9 is equipped with a shifting chute, and the shifting chute is located between shifting fork axle A5 and the shifting fork axle C7 that set up from top to bottom, and shifting fork axle A5 below is equipped with a shifting chute, and shifting fork axle C7 top is equipped with a shifting chute, three shifting chute set up along vertical direction.
The bottom of the gear shift lever 2 is provided with a gear shift shifting block A4, the gear shift shifting block A4 is matched with the positions of shifting grooves on a shifting fork B9, a shifting fork shaft A5 and a shifting fork shaft C7, the gear shift shifting block A4 is matched with the shifting fork B9, the shifting fork shaft A5 and the shifting fork shaft C7 respectively in the vertical direction movement process, and then the switching of the gear shift shifting block A4 to the shifting fork B9, the shifting fork A8 and the shifting fork C10 is realized.
The shifting fork shaft D13 is fixedly connected with the support 103, a shifting fork D14 is arranged on the shifting fork shaft D13 in a sliding mode, and a shifting groove is formed in the shifting fork D14.
The bottom of the gear shifting shaft B11 is provided with a gear shifting block B12, and the free end of the gear shifting block B12 is positioned in a shifting groove of the shifting fork D14. The shift block B12 is driven by the rotation of the shift shaft B11 to move the fork D14 on the fork shaft D13.
And three shifting grooves 15 are formed in the shifting fork shaft A5, the shifting fork shaft B6, the shifting fork shaft C7 and the shifting fork shaft D13, the middle shifting groove 15 is a neutral gear groove, and the shifting grooves 15 on the two sides are respectively a 1-gear groove and a 2-gear groove.
The shifting fork shaft A5, the shifting fork shaft B6, the shifting fork shaft C7 and the shifting fork shaft D13 are respectively provided with a self-locking spring 17 and a self-locking steel ball 18, and the self-locking steel ball 18 is pressed into the shifting groove 15 by the self-locking spring 17 during shifting to complete the positioning function.
The corresponding self-locking springs 17 and the self-locking steel balls 18 on the shifting fork shaft A5, the shifting fork shaft B6 and the shifting fork shaft C7 are arranged inside the support 103.
The corresponding self-locking spring 17 and the self-locking steel ball 18 on the shifting fork shaft D13 are arranged inside the shifting fork D14.
Interlocking grooves 16 are formed in the position of the neutral gear grooves on the shifting fork shaft A5, the position of the shifting fork shaft B6 and the position of the neutral gear groove on the shifting fork shaft C7 correspond to the interlocking grooves, wherein each of the shifting fork shaft A5 and the shifting fork shaft C7 is provided with one interlocking groove 16, each of the shifting fork shaft B6 is provided with two interlocking grooves 16, and interlocking steel balls 19 are arranged between the interlocking grooves 16 of the shifting fork shaft A5 and the shifting fork shaft B6 and between the interlocking grooves 16 of the shifting fork shaft B6 and the interlocking grooves 16 of the shifting fork shaft C7.
The shifting fork shafts A5, B6 and C7 are mutually independent and can be freely engaged through the interlocking steel balls 19.
The reason for the interlocking steel balls 19 between the shift rail A5 and the shift rail B6 is as follows: the interlocking steel ball 19 can move at will in the initial position, when the shifting fork shaft A5 works, the interlocking steel ball 19 can lock the shifting fork shaft B6 and can not move, when the shifting fork shaft B6 works, the interlocking steel ball 19 can lock the shifting fork shaft A5 and can not move, and therefore, when one shifting fork shaft A5 and the shifting fork shaft B6 are only in the working state, the other shifting fork shaft A5 and the shifting fork shaft B6 can not enter the working state. Similarly, the interlocking steel ball 19 is arranged between the shifting fork shaft B6 and the shifting fork shaft C7.
The specific working principle of the invention is as follows:
first, the shift shaft B11 is used to complete the high-low gear shift, and the rotation of the shift shaft B11 drives the shift block B12 to move the shift fork D14 on the shift rail D13, so as to realize the high-gear and low-gear shift. Next, 6 gear shifts can be completed by the shift shaft A3 and the shift lever 2.
The gear shift lever 2 can move in the vertical direction and simultaneously can rotate on a plane, the gear shift shaft A3 can only rotate, and the gear shift shaft A3 and the gear shift lever 2 are mutually perpendicular, so that the gear shift lever can be assembled on one control lever to perform front-back and left-right operation to finish the switching of 6 gears.
Along with the rotation of the gear shifting shaft A3, the gear shifting rod 2 can be driven to vertically move, and the gear shifting rod 2 drives the gear shifting block A4 to vertically move, so that the gear shifting block A4 is switched among the shifting fork A8, the shifting fork B9 and the shifting fork C10.
The rotation of the gear lever 2 can drive the gear shifting block A4 to rotate so as to enable the shifting fork A8, the shifting fork shaft A5, the shifting fork B9, the shifting fork shaft B6, the shifting fork C10 and the shifting fork shaft C7 to move on a straight line for gear shifting.
In the invention, the shifting fork shaft A5, the shifting fork shaft B6, the shifting fork shaft C7, the shifting fork A8, the shifting fork B9 and the shifting fork C10 are mutually fixed and can not move mutually. And the shifting fork shaft D13 is mutually fixed with the support 103 at the bottom of the gear-shifting seat 1, and the shifting fork shaft D13 and the shifting fork D14 can mutually move, so that gear shifting is completed.
The invention can realize the switching between 12 gears only by two operating levers, firstly, the gear shifting shaft A3 and the gear shifting lever 2 are finally combined on one operating lever to operate and complete the gear shifting, and secondly, the gear shifting shaft B11 is operated by one operating lever to realize the switching of high and low speeds. And the interlocking between every two shifting fork shafts is realized, and the interlocking is more stable than before.
In the invention, the gear is 2 at high speed and low speed, each shifting fork has 2 gears which are 2*3 =6, and 2*6 =12 gears are generated in total.
The foregoing is illustrative of the best mode of carrying out the invention, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the invention is defined by the claims, and any equivalent transformation based on the technical teaching of the invention is also within the protection scope of the invention.
Claims (10)
1. The utility model provides a gearbox gear mechanism, its characterized in that: the gear shifting device comprises a gear shifting seat (1), wherein a cylinder seat A (101) and a cylinder seat B (102) are arranged on the gear shifting seat (1), a gear shifting rod (2) and a gear shifting shaft A (3) which are vertically arranged are arranged in the cylinder seat A (101), the gear shifting rod (2) can move in the vertical direction and rotate, a gear shifting block A (4) is arranged at the bottom end of the gear shifting rod (2), the gear shifting rod (2) drives the gear shifting block A (4) to move in the vertical direction, the gear shifting block A (4) realizes the switching among a shifting fork A (8), a shifting fork B (9) and a shifting fork C (10), and the gear shifting rod (2) drives the gear shifting block A (4) to rotate so that the shifting fork A (8) and the shifting fork A (5), the shifting fork B (9) and the shifting fork B (6), the shifting fork C (10) and the shifting fork C (7) move in a straight line for gear shifting; a vertical gear shifting shaft B (11) is arranged in the cylinder seat B (102), and the gear shifting shaft B (11) realizes high-low speed switching.
2. A transmission shift mechanism as claimed in claim 1, wherein: the gear lever (2) is arranged along the vertical direction, and an annular groove (201) is formed in the gear lever (2);
the end part of the gear shifting shaft A (3) close to the gear shifting rod (2) is provided with a rotary shifting block (20), and the free end of the rotary shifting block (20) is arranged in the annular groove (201).
3. A transmission shift mechanism as claimed in claim 1, wherein: four parallel-arranged shifting fork shafts are arranged at the bottom of the gear engaging seat (1), two ends of each shifting fork shaft are arranged in the corresponding support (103), and the number of the supports (103) is multiple.
4. A transmission shift mechanism as claimed in claim 3, wherein: the four shifting fork shafts are a shifting fork shaft A (5), a shifting fork shaft B (6), a shifting fork shaft C (7) and a shifting fork shaft D (13) respectively, wherein the shifting fork shaft A (5), the shifting fork shaft B (6) and the shifting fork shaft C (7) are distributed in a triangle shape, and the shifting fork shaft C (7) is positioned under the shifting fork shaft A (5);
the shifting fork shaft A (5), the shifting fork shaft B (6) and the shifting fork shaft C (7) are in sliding connection with the support (103), and the shifting fork shaft D (13) is fixedly connected with the support (103).
5. A transmission shift mechanism as claimed in claim 4, wherein: a shifting fork A (8) is fixed on the shifting fork shaft A (5), a shifting fork B (9) is fixed on the shifting fork shaft B (6), a shifting fork C (10) is fixed on the shifting fork shaft C (7), and a shifting fork D (14) is arranged on the shifting fork shaft D (13) in a sliding mode.
6. A transmission shift mechanism as claimed in claim 5, wherein: the top of the shifting fork B (9) is provided with a shifting groove, the shifting groove is positioned between a shifting fork shaft A (5) and a shifting fork shaft C (7) which are arranged up and down, a shifting groove is arranged below the shifting fork shaft A (5), and a shifting groove is arranged above the shifting fork shaft C (7); the three poking grooves are arranged along the vertical direction; the gear shifting block A (4) is matched with the position of a shifting fork B (9), a shifting fork shaft A (5) and a shifting fork groove on a shifting fork shaft C (7).
7. A transmission shift mechanism as claimed in claim 5, wherein: a shifting groove is formed in the shifting fork D (14); the bottom of the gear shifting shaft B (11) is provided with a gear shifting block B (12), and the free end of the gear shifting block B (12) is positioned in a shifting groove of the shifting fork D (14).
8. A transmission shift mechanism as claimed in claim 4, wherein: three gear shifting grooves (15) are formed in the shifting fork shaft A (5), the shifting fork shaft B (6), the shifting fork shaft C (7) and the shifting fork shaft D (13), the middle gear shifting groove (15) is a neutral gear groove, and the gear shifting grooves (15) on two sides are a 1-gear groove and a 2-gear groove respectively;
the shifting fork shaft A (5), the shifting fork shaft B (6), the shifting fork shaft C (7) and the shifting fork shaft D (13) are respectively provided with a self-locking spring (17) and a self-locking steel ball (18) which correspond to the self-locking springs.
9. A transmission shift mechanism as claimed in claim 8, wherein: the shifting fork shaft A (5), the shifting fork shaft B (6) and the corresponding self-locking spring (17) and self-locking steel ball (18) on the shifting fork shaft C (7) are arranged in the support (103);
the self-locking spring (17) and the self-locking steel ball (18) which correspond to the shifting fork shaft D (13) are arranged inside the shifting fork D (14).
10. A transmission shift mechanism as claimed in claim 8, wherein: interlocking grooves (16) are formed in the positions of the neutral gear grooves on the shifting fork shaft A (5), the shifting fork shaft B (6) and the shifting fork shaft C (7) and correspond to the neutral gear grooves, wherein the shifting fork shaft A (5) and the shifting fork shaft C (7) are respectively provided with one interlocking groove (16), the shifting fork shaft B (6) is provided with two interlocking grooves (16), and interlocking steel balls (19) are arranged between the interlocking grooves (16) of the shifting fork shaft A (5) and the shifting fork shaft B (6) and between the interlocking grooves (16) of the shifting fork shaft B (6) and the shifting fork shaft C (7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310191795.8A CN116292881A (en) | 2023-03-02 | 2023-03-02 | Gear shifting mechanism of gearbox |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310191795.8A CN116292881A (en) | 2023-03-02 | 2023-03-02 | Gear shifting mechanism of gearbox |
Publications (1)
Publication Number | Publication Date |
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CN116292881A true CN116292881A (en) | 2023-06-23 |
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CN202310191795.8A Pending CN116292881A (en) | 2023-03-02 | 2023-03-02 | Gear shifting mechanism of gearbox |
Country Status (1)
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CN (1) | CN116292881A (en) |
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2023
- 2023-03-02 CN CN202310191795.8A patent/CN116292881A/en active Pending
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