CN205278338U - High speed in reverse backset mechanism - Google Patents

High speed in reverse backset mechanism Download PDF

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Publication number
CN205278338U
CN205278338U CN201521045899.5U CN201521045899U CN205278338U CN 205278338 U CN205278338 U CN 205278338U CN 201521045899 U CN201521045899 U CN 201521045899U CN 205278338 U CN205278338 U CN 205278338U
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China
Prior art keywords
odd
main tank
reverse gear
high reverse
locking plate
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CN201521045899.5U
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Chinese (zh)
Inventor
方伟
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Priority to CN201521045899.5U priority Critical patent/CN205278338U/en
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Abstract

The utility model discloses a high speed in reverse backset mechanism, aim at pins the height speed in reverse, makes the height speed in reverse of derailleur hang, strengthens the security performance of vehicle, and the technical scheme who adopts is: main tank reverse -gear shift fork shaft (1) and odd -side scope shelves declutch shift shafts (5) all extend and pass the odd -side partition wall of gearbox housing (2), and the odd -side partition wall rear end of gearbox housing (2) is provided with high speed in reverse locking plate (4), and high speed in reverse locking plate (4) cover is established on main tank reverse -gear shift fork shaft (1) and odd -side scope shelves declutch shift shafts (5), the line that main tank reverse -gear shift fork shaft (1) and odd -side scope shelves declutch shift shafts (5) can be followed in high speed in reverse locking plate (4) slides, hangs when high -grade at the odd -side, and high speed in reverse locking plate (4) can locking main tank reverse -gear shift fork shaft (1), restriction main tank reverse -gear shift fork shaft's (1) action.

Description

A kind of high reverse gear lock gear mechanism
Technical field
This utility model relates to transmission technology field, is specifically related to a kind of high reverse gear lock gear mechanism.
Background technology
Many speed transmission (8 grades and more than) are generally adopted major-minor case structure, handle type and are basically divided into single H and double; two H two kinds. The box that single H handles has 2 reverse gears, low-grade including main tank reverse gear and odd-side, main tank reverse gear with define 2 different reverse gears of speed ratio under odd-side top grade both of these case, vehicle is in actual use, odd-side is in reverse gear during top grade, it is called for short high reverse gear, owing to speed ratio is only small, the too fast typically not use of speed, and if owing to hangs high reverse gear possibly even cause danger by mistake. Therefore, it is necessary to high reverse gear is pinned so that it is be not present in normal shift sequence.
Current many speed transmission adopt single H seldom high reverse gear to be pinned when handling, and along with the development of automotive engineering, main engine plants and user increasingly pay attention to hazards prevention, the demand locking high reverse gear can be more and more stronger. Extremely individual other product has had been provided with this function, and employing is the form of gas circuit backset.
Summary of the invention
In order to solve the problems of the prior art, the utility model proposes one can pin high reverse gear, makes the high reverse gear of variator to be linked into, and enhances the high reverse gear lock gear mechanism of the security performance of vehicle.
In order to realize object above, the technical scheme that this utility model adopts is: main tank reverse speed shift rod and odd-side scope shelves shift fork axle all extend across the odd-side partition wall of case of transmission, the odd-side partition wall rear end of case of transmission is provided with high reverse gear locking plate, high reverse gear locking sleeve-board is located on main tank reverse speed shift rod and odd-side scope shelves shift fork axle, described high reverse gear locking plate can slide along the line of main tank reverse speed shift rod and odd-side scope shelves shift fork axle, when odd-side shift to a higher gear, high reverse gear locking plate can locking main tank reverse speed shift rod, the action of restriction main tank reverse speed shift rod.
Being provided with compression spring on one end of described high reverse gear locking plate, compression spring connects case of transmission.
The odd-side partition wall rear end of described case of transmission is installed with pressing plate, described high reverse gear locking plate is between case of transmission and pressing plate, and high reverse gear locking plate can slide along the line of main tank reverse speed shift rod and odd-side scope shelves shift fork axle between case of transmission and pressing plate.
Described pressing plate passes through some odd-side partition wall rear ends being bolted to case of transmission.
The position of described odd-side scope shelves shift fork axle correspondence odd-side top grade is provided with groove, the corresponding high reverse gear locking plate of main tank reverse speed shift rod is provided with groove in the position of neutral gear, when odd-side shift to a higher gear, high reverse gear locking plate can be simultaneously embedded in the groove of odd-side scope shelves shift fork axle and main tank reverse speed shift rod, the action of restriction main tank reverse speed shift rod, makes the high reverse gear of variator to be linked into.
Groove on described odd-side scope shelves shift fork axle and main tank reverse speed shift rod is all opened on the face of cylinder of odd-side partition wall rear end.
Channel section on described odd-side scope shelves shift fork axle is trapezoidal, and the length on the trapezoidal base of groove is more than the thickness of high reverse gear locking plate.
The trapezoidal base of groove of described odd-side scope shelves shift fork axle and hypotenuse are excessive by circular arc.
The groove of described main tank reverse speed shift rod is bar-shaped trough.
Described main tank reverse speed shift rod and odd-side scope shelves shift fork axle are arranged in parallel, and high reverse gear locking plate is each perpendicular to main tank reverse speed shift rod and odd-side scope shelves shift fork axle.
Compared with prior art, this utility model will be located in the main tank reverse speed shift rod in main tank and extends back and pass odd-side partition wall, the odd-side scope shelves shift fork axle being positioned at odd-side also suitably extends to main tank and penetrates odd-side partition wall, one high reverse gear locking plate is set in odd-side partition wall rear end simultaneously, main tank reverse speed shift rod and odd-side scope shelves shift fork axle all penetrate high reverse gear locking plate, high reverse gear locking plate is connected with case of transmission, and high reverse gear locking plate can slide along the line of main tank reverse speed shift rod and odd-side scope shelves shift fork axle, when odd-side shift to a higher gear, high reverse gear locking plate can move and embed in main tank reverse speed shift rod along the axial main tank reverse speed fork direction of principal axis of odd-side scope shelves shift fork, restriction main tank reverse speed shift rod moves, the high reverse gear making variator cannot be linked into, enhance the security performance of vehicle.
Further, high reverse gear locking plate is connected with case of transmission by a compression spring, the compression degree of compression spring is controlled by the outline of odd-side scope shelves shift fork axle, when odd-side shift to a higher gear, compression spring makes high reverse gear locking plate move and embed in main tank reverse speed shift rod along the axial main tank reverse speed fork direction of principal axis of odd-side scope shelves shift fork, restriction main tank reverse speed shift rod moves, utilize compression spring to be supplied to high reverse gear locking plate motoricity, improve mobility and the reliability of high reverse gear locking plate.
Further, the odd-side partition wall rear end of case of transmission is installed with pressing plate, high reverse gear locking plate is between case of transmission and pressing plate, make high reverse gear locking plate be only capable of between case of transmission and pressing plate to slide along the line of main tank reverse speed shift rod and odd-side scope shelves shift fork axle, fixed pressing plate is utilized to limit the space of high reverse gear locking plate, make high reverse gear locking plate obtain action relatively reliable, improve the stability of whole mechanism.
Further, odd-side scope shelves shift fork axle and main tank reverse speed shift rod all offer groove on the face of cylinder towards odd-side partition wall rear end, high reverse gear locking plate can slide into groove, embed in main tank reverse speed shift rod, restriction main tank reverse speed shift rod moves, the high reverse gear making variator cannot be linked into, and enhances the security performance of vehicle.
Further, channel section on odd-side scope shelves shift fork axle is trapezoidal, utilizing cross section is trapezoidal groove, move axially up and down at odd-side scope shelves shift fork axle and make, high reverse gear locking plate can be made to be slided into by trapezoidal faces or skid off groove, be beneficial to work and the reset of high reverse gear locking plate, and the length on trapezoidal base is more than the thickness of high reverse gear locking plate, odd-side scope shelves shift fork axle can be made at the active strokes axially having movement up and down, it is simple to operation.
Further, the trapezoidal base of groove of odd-side scope shelves shift fork axle and hypotenuse are excessive by circular arc, such structural design reduces high reverse gear locking plate and slides into, skids off the resistance of groove, is conducive to the action of high reverse gear locking plate, improves the reliability of whole mechanism.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model odd-side Low gear state;
Fig. 2 is the structural representation of this utility model odd-side top grade state;
Wherein, 1-main tank reverse speed shift rod, 2-case of transmission, 3-compress spring, 4-high reverse gear locking plate, 5-odd-side scope shelves shift fork axle, 6-pressing plate, 7-bolt.
Detailed description of the invention
Below in conjunction with the utility model is further explained the explanation of specific embodiment and Figure of description.
Referring to Fig. 1 and Fig. 2, main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5 all extend across the odd-side partition wall of case of transmission 2, the odd-side partition wall rear end of case of transmission 2 is provided with high reverse gear locking plate 4, high reverse gear locking plate 4 is set on main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5, main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5 are arranged in parallel, and high reverse gear locking plate 4 is each perpendicular to main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5. One end of high reverse gear locking plate 4 is provided with compression spring 3, compression spring 3 connects case of transmission 2, the odd-side partition wall rear end of case of transmission 2 is installed with pressing plate 6, pressing plate 6 is fixed on the odd-side partition wall rear end of case of transmission 2 by some bolts 7, high reverse gear locking plate 4 is between case of transmission 2 and pressing plate 6, and high reverse gear locking plate 4 can slide along the line of main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5 between case of transmission 2 and pressing plate 6. When odd-side shift to a higher gear, high reverse gear locking plate 4 can locking main tank reverse speed shift rod 1, restriction main tank reverse speed shift rod 1 action.
The position of the corresponding odd-side top grade of odd-side scope shelves shift fork axle 5 is provided with groove, the corresponding high reverse gear locking plate 4 of main tank reverse speed shift rod 1 is provided with groove in the position of neutral gear, when odd-side shift to a higher gear, high reverse gear locking plate 4 can be simultaneously embedded in the groove of odd-side scope shelves shift fork axle 5 and main tank reverse speed shift rod 1, the action of restriction main tank reverse speed shift rod 1, makes the high reverse gear of variator to be linked into. Groove on odd-side scope shelves shift fork axle 5 and main tank reverse speed shift rod 1 is all opened on the face of cylinder of odd-side partition wall rear end. Channel section on odd-side scope shelves shift fork axle 5 is trapezoidal, and the length on the trapezoidal base of groove is more than the thickness of high reverse gear locking plate 4, and the trapezoidal base of groove of odd-side scope shelves shift fork axle 5 and hypotenuse are excessive by circular arc. The groove of main tank reverse speed shift rod 1 is bar-shaped trough.
Referring to Fig. 1 and Fig. 2, high reverse gear locking plate 4 is arranged on the odd-side partition wall rear end of case of transmission 2, and pressing plate 6 is fixedly mounted on case of transmission 2 by several bolts 7, and high reverse gear locking plate 4 can slide between case of transmission 2 and pressing plate 6. High reverse gear locking plate 4 is enclosed within main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5 simultaneously, is only capable of the line of centres along the two shift fork axle and slides. One end of high reverse gear locking plate 4 contacts with case of transmission 2 by compressing spring 3, and due to the effect of spring force, high reverse gear locking plate 4 withstands on the surface of odd-side scope shelves shift fork axle 5. The corresponding high-grade position of odd-side scope shelves shift fork axle 5 is provided with a groove, and the corresponding high reverse gear locking plate 4 of main tank reverse speed shift rod 1 is provided with groove at neutral position.
Referring to Fig. 1, when odd-side is positioned at low grade, the face of cylinder of odd-side scope shelves shift fork axle 5 is by high reverse gear locking plate 4 jack-up, and main tank reverse speed shift rod 1 is unfettered, it is possible to be normally linked into reverse gear;
Referring to Fig. 2, when odd-side is positioned at top grade, owing to compressing the active force of spring 3, high reverse gear locking plate 4 slips into the groove surface of odd-side scope shelves shift fork axle 5, is embedded just below in the groove of main tank reverse speed shift rod 1, now cannot be linked into reverse gear; When odd-side scope shelves shift fork axle 5 resets, high reverse gear locking plate 4 is skidded off by the trapezoid cross section groove of odd-side scope shelves shift fork axle 5, and main tank reverse speed shift rod 1 is unfettered, it is possible to normal operating.
Owing to the reliability of gas circuit backset is on the low side, this utility model devises a kind of machinery for locking high reverse gear, this utility model will be located in the main tank reverse speed shift rod 1 in main tank and extends back and pass odd-side partition wall, and the odd-side scope shelves shift fork axle 5 being positioned at odd-side also suitably extends to main tank and penetrates odd-side partition wall. Simultaneously, one high reverse gear locking plate 4 and a pressing plate 6 are set in odd-side partition wall rear end, main tank reverse speed shift rod 1 and odd-side scope shelves shift fork axle 5 all penetrate high reverse gear locking plate 4, high reverse gear locking plate 4 is connected with case of transmission 2 by a compression spring 3, the outline of odd-side scope shelves shift fork axle 5 control the compression degree of compression spring 3. When odd-side shift to a higher gear, compression spring 3 makes high reverse gear locking plate 4 move and embed in the groove of main tank reverse speed shift rod 1 along the groove of odd-side scope shelves shift fork axle 5 towards main tank reverse speed shift rod 1 direction, and restriction main tank reverse speed shift rod 1 moves. This utility model makes the high reverse gear of variator to be linked into, and enhances the security performance of vehicle.

Claims (10)

1. one kind high reverse gear lock gear mechanism, it is characterized in that, main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5) all extend across the odd-side partition wall of case of transmission (2), high reverse gear locking plate (4) it is provided with between main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5), high reverse gear locking plate (4) is set on main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5), described high reverse gear locking plate (4) can be slided along the line of main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5), when odd-side shift to a higher gear, high reverse gear locking plate (4) can locking main tank reverse speed shift rod (1), the action of restriction main tank reverse speed shift rod (1).
2. the high reverse gear lock gear mechanism of one according to claim 1, it is characterized in that, being provided with compression spring (3) on one end of described high reverse gear locking plate (4), compression spring (3) connects case of transmission (2).
3. the high reverse gear lock gear mechanism of one according to claim 2, it is characterized in that, the odd-side partition wall rear end of described case of transmission (2) is installed with pressing plate (6), described high reverse gear locking plate (4) is positioned between case of transmission (2) and pressing plate (6), and high reverse gear locking plate (4) can be slided along the line of main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5) between case of transmission (2) and pressing plate (6).
4. the high reverse gear lock gear mechanism of one according to claim 3, it is characterised in that described pressing plate (6) is fixed on the odd-side partition wall rear end of case of transmission (2) by some bolts (7).
5. the high reverse gear lock gear mechanism of one according to claim 1, it is characterized in that, the position of the corresponding odd-side top grade of described odd-side scope shelves shift fork axle (5) is provided with groove, the corresponding high reverse gear locking plate (4) of main tank reverse speed shift rod (1) is provided with groove in the position of neutral gear, when odd-side shift to a higher gear, high reverse gear locking plate (4) can be simultaneously embedded in the groove of odd-side scope shelves shift fork axle (5) and main tank reverse speed shift rod (1), the action of restriction main tank reverse speed shift rod (1), makes the high reverse gear of variator to be linked into.
6. the high reverse gear lock gear mechanism of one according to claim 5, it is characterised in that the groove on described odd-side scope shelves shift fork axle (5) and main tank reverse speed shift rod (1) is all opened on the face of cylinder of odd-side partition wall rear end.
7. the high reverse gear lock gear mechanism of one according to claim 6, it is characterised in that the channel section on described odd-side scope shelves shift fork axle (5) is trapezoidal, the length on the trapezoidal base of groove is more than the thickness of high reverse gear locking plate (4).
8. the high reverse gear lock gear mechanism of one according to claim 7, it is characterised in that the trapezoidal base of groove of described odd-side scope shelves shift fork axle (5) and hypotenuse are excessive by circular arc.
9. the high reverse gear lock gear mechanism of one according to claim 8, it is characterised in that the groove of described main tank reverse speed shift rod (1) is bar-shaped trough.
10. the high reverse gear lock gear mechanism of one according to any one of claim 1-9, it is characterized in that, described main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5) are arranged in parallel, and high reverse gear locking plate (4) is each perpendicular to main tank reverse speed shift rod (1) and odd-side scope shelves shift fork axle (5).
CN201521045899.5U 2015-12-14 2015-12-14 High speed in reverse backset mechanism Active CN205278338U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521045899.5U CN205278338U (en) 2015-12-14 2015-12-14 High speed in reverse backset mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521045899.5U CN205278338U (en) 2015-12-14 2015-12-14 High speed in reverse backset mechanism

Publications (1)

Publication Number Publication Date
CN205278338U true CN205278338U (en) 2016-06-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351514A (en) * 2015-12-14 2016-02-24 陕西法士特齿轮有限责任公司 High reverse gear locking mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351514A (en) * 2015-12-14 2016-02-24 陕西法士特齿轮有限责任公司 High reverse gear locking mechanism

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