CN109931399A - A kind of middle light truck control mechanism assembly - Google Patents
A kind of middle light truck control mechanism assembly Download PDFInfo
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- CN109931399A CN109931399A CN201910156286.5A CN201910156286A CN109931399A CN 109931399 A CN109931399 A CN 109931399A CN 201910156286 A CN201910156286 A CN 201910156286A CN 109931399 A CN109931399 A CN 109931399A
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- 238000007789 sealing Methods 0.000 description 6
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Abstract
The present invention provides a kind of middle light truck control mechanism assemblies, the product structure is simple, superior performance, low in cost, and solving the problem of that operating mechanism type existing for existing product is more causes user's matching difficulty, gear lever easily to shake and manipulate position-limit mechanism space without arrangement.The control mechanism assembly by self-locking mechanism, select reverse gear mechanism, neutral gear and the switch that reverses gear, manipulation limit be integrated in one, realize that the institute of speed changer is functional, and only changing lateral gear lever installation direction, do not change under other parts installation condition, realizes that left manipulation is exchanged with right manipulation.
Description
Technical field
The invention belongs to transmission technologies, are related to a kind of middle light truck control mechanism assembly.
Background technique
With the increasingly internationalization of product, user is required to higher and higher, the light truck city because in speed changer quality and performance
Field production transmissions update is more frequent, need to constantly meet the manipulation request of user.
Light truck operating mechanism type is more at present, brings very big inconvenience to user's matching, and now in order to solve
Straight-tooth has been changed to helical teeth, but has produced new problem again thereupon by the noise problem of speed changer, that is, helical teeth engagement
The axial force of generation may result in gear lever and shake, and there is the risk to break down, and solve problems has efficacious prescriptions
Method is exactly to increase manipulation position-limit mechanism, but existing operating mechanism manipulates the space of position-limit mechanism without arrangement, and therefore, it is necessary to research and develop
A kind of transmission control can satisfy the light truck market demand at present.
Summary of the invention
It is an object of the invention to solve operating mechanism type of the existing technology it is more cause user match it is difficult, change
Bar is easily shaken, and the shortcoming without arrangement manipulation position-limit mechanism space, and provides a kind of middle light truck manipulation machine
Structure assembly.
To achieve the above object, technical solution provided by the present invention is:
A kind of middle light truck control mechanism assembly, is characterized in that, including manipulation shell, setting manipulation shell it is intracorporal
Laterally shift bar assembly, breather plug, the switch that reverses gear, neutral position switch, block selecting shifting block, the self-locking pin of integrated form, block selecting feel component
And shift limit assembly；
The laterally shift bar assembly includes lateral gear lever, and the switch control of lateral gear lever left part is arranged in
Block, the gear shifting pulling head at middle part, right part the lock control clamp dog that reverses gear；
It is described to reverse gear switch and neutral position switch is symmetricly set on the two sides of the switch control block；
The block selecting shifting block and integrated form self-locking column pin are symmetricly set on the two sides of the gear shifting pulling head；
The block selecting feel component and shift limit assembly are symmetricly set on the two sides of the lock control clamp dog that reverses gear, shift limit
Hyte part and the lock control clamp dog that reverses gear, which cooperate, forms manipulation position-limit mechanism；
The left side for the switch that reverses gear is arranged in the breather plug；
The manipulation shell includes ontology and is respectively set end-cap assembly at both ends of the body；
The operating side of the transverse direction gear lever is stretched out from the left or right of manipulation shell；
End-cap assembly corresponding with the operating side of lateral gear lever includes end cap, dust cover, bearing and oil sealing；
Another end-cap assembly includes end cap, seal cover board and bearing.
Further, the lock control clamp dog that reverses gear is connect with lateral gear lever by elastic cylindrical pin interference；
The axially disposed limiting slot having with shift limit assembly cooperation in the side of the lock control clamp dog outer wall that reverses gear；
Reverse gear lock control clamp dog outer wall and the symmetrical other side of limiting slot be axially disposed to be had and matches with block selecting feel component
The feel inclined-plane of conjunction；
The feel inclined-plane from left to right successively includes the first inclined-plane, the second inclined-plane, third inclined-plane and the 4th inclined-plane；
First inclined-plane, the second inclined-plane, the slope K 1 on third inclined-plane, K2, K3 are negative, and absolute value < K3 of K1 is absolute
The absolute value of value < K2；The slope K 4 on the 4th inclined-plane is positive, and the absolute value of K4=K3.
Further, the block selecting feel component includes the feel plug screw being arranged radially along manipulation enclosure body, selects and reverse gear
Spring and feel pin；
The steel ball of feel pin end and second inclined-plane cooperation positioning, which select 1/2 gear and generate choosing, reverses gear feel；
Gasket is provided between the feel plug screw and manipulation enclosure body；
The choosing reverses gear spring setting between feel plug screw and feel pin.
Further, the shift limit assembly includes the plug screw and pin being arranged radially along manipulation enclosure body；It is described
Pin protrudes into the limiting slot, is threadedly coupled between the plug screw and manipulation enclosure body, moves for limiting the axial of pin
It is dynamic.
It further, further include the block selecting accessory part being arranged on lateral gear lever；
The block selecting accessory part includes being symmetricly set on the secondary spring seat at the gear shifting pulling head both ends and being mounted on
Block selecting secondary spring between secondary spring seat and gear shifting pulling head；
The secondary spring seat and manipulation enclosure body clearance fit.
Further, the end of reverse gear switch and the neutral position switch is provided with switch contact；
The left part of the switch control block side is provided with the boss matched with the switches contact that reverses gear；Other side edge
Axially it is provided with the groove matched with neutral position switch switch contact；
The switches contact that reverses gear is in normally open when not hanging and reversing gear, and the switch contact is by normally opened when extension reverses gear
Become normally closed；
The neutral position switch switch contact is in normally off in neutral gear position, and the switch contact is by normally closed change when putting into gear
It is normally opened.
Further, the gear shifting pulling head is connect with lateral gear lever by filled circles pin interference.
Further, pass through elastic cylinder for the ease of installation, convenient disassembly, the switch control block and lateral gear lever
Sell interference connection.
Further, the neutral position switch, the switch that reverses gear, the self-locking pin of integrated form connect with manipulation enclosure body screw thread
It connects.
Further, the dust cover, end cap, seal cover board pass through bolt and connect with manipulation enclosure body.
Further, the bearing uses linear bearing.
The invention has the advantages that
1. the configuration of the present invention is simple, rationally distributed, by self-locking mechanism, reverse gear mechanism, neutral gear are selected and the switch that reverses gear, manipulation limit
Position mechanism is integrated in one, and the institute for realizing speed changer is functional, and product is reliable, superior performance has with stronger versatility
It is matched conducive to speed changer type selecting and vehicle；And it can under the installation condition for only changing lateral gear lever, not changing other each parts
It realizes that left manipulation is exchanged with right manipulation, substantially reduces part category, reduce production cost, the operation for adapting to different geographical is practised
It is used；Manipulation position-limit mechanism (shift limit assembly and the lock control clamp dog that reverses gear) is arranged in the operating mechanism simultaneously, when putting into gear, is changed
Gear limit assembly is contacted with the lock control clamp dog that reverses gear, and completes shift limit function, promotes the consistency and comfort of shift stroke, and
Reduce the risk of gear shake, it is ensured that accurate shift.
2. being matched using lock control clamp dog is reversed gear with block selecting feel component in the present invention, the feel of the lock control clamp dog that reverses gear is oblique
The mask inclined-plane different there are four gradient, can enhance user's block selecting feel, handling is more superior.
3. invention increases block selecting accessory part, the position in more acurrate positioning neutral gear block selecting direction, and can according to
Family requires to carry out debugging matching to the different of block selecting power, meets the maneuvering performance demand of different user.
Detailed description of the invention
Fig. 1 be the present invention as left control mechanism assembly when structural schematic diagram；
Fig. 2 be the present invention as right control mechanism assembly when structural schematic diagram；
Fig. 3 is reverse gear in the present invention lock control clamp dog and the structural representation at limit assembly of shifting gears, block selecting feel component cooperation
Figure；
Fig. 4 is the structural schematic diagram that shell is manipulated in the present invention；
Fig. 5 is the main view of lock control clamp dog of reversing gear in the present invention；
Fig. 6 is A-A sectional view in Fig. 5；
Fig. 7 is the main view of switch control block in the present invention；
Fig. 8 is the left view of switch control block in the present invention；
Drawing reference numeral is as follows:
1- transverse direction gear lever, 2- dust cover, 3- oil sealing, 4- end cap, 5- ontology, 6- breather plug, 7- switch control block,
71- boss；72- groove；8- reverse gear switch, 9- secondary spring seat, 10- gear shifting pulling head, 11- block selecting secondary spring, 12- sealing
Reverse gear spring, 14- feel plug screw, 15- feel pin, 16- of pad, 13- choosing reverses gear lock control clamp dog, the first inclined-plane 161-, 162- the
Two inclined-planes, 163- third inclined-plane, the 4th inclined-plane 164-, 165- limiting slot, 166- mounting hole；17- seal cover board, 18- bearing,
19- pin, 20- plug screw, 21- elastic cylindrical pin, the self-locking pin of 22- integrated form, 23- filled circles pin, 24- neutral position switch；25-
Block selecting shifting block；26- switch contact；27- ball steel ball.
Specific embodiment
The contents of the present invention are described in further detail below in conjunction with the drawings and specific embodiments:
Only for convenience, in the following description, specific direction term has been used, has been with corresponding attached drawing
For reference, it can not be considered limitation of the present invention, when the definition direction of drawing changes, what these words indicated
Direction should be construed as corresponding different directions.
As shown in Fig. 1, Fig. 3-Fig. 8, a kind of middle left control mechanism assembly of light truck includes manipulation shell, setting in manipulation shell
Interior lateral shift bar assembly, breather plug 6, the switch 8 that reverses gear, neutral position switch 24, the self-locking pin 22 of integrated form, block selecting shifting block 25,
Block selecting accessory part, block selecting feel component and shift limit assembly.
Laterally shift bar assembly includes lateral gear lever 1, and be arranged in lateral 1 left part of gear lever switch control block 7,
The lock control clamp dog 16 that reverses gear of the gear shifting pulling head 10 and block selecting accessory part at middle part, right part；The operating side of lateral gear lever 1 is from manipulation
The left end of shell is stretched out.
Manipulation shell includes ontology 5 and is respectively set end-cap assembly at both ends of the body；Positioned at manipulation shell left end
End-cap assembly includes end cap 4, dust cover 2, linear bearing 18 and oil sealing 3.There are installations between end cap 4 and lateral gear lever 1
The matching hole of oil sealing 3 and linear bearing 18.End-cap assembly positioned at manipulation shell right end includes end cap 4, seal cover board 17 and straight
Spool holds 18, and linear bearing 18 is mounted in matching hole.
It reverses gear switch 8 and neutral position switch 24 is symmetricly set on the two sides of switch control block 7, reverse gear switch 8 and neutral position switch
24 end is provided with switch contact 26, and two switch contacts 26 are matched with switch control block 7；Switch control block 7 with
The side axially disposed fluted 72 that neutral position switch 24 cooperates, the switch contact 26 of neutral position switch 24 and the groove 72 cooperate；
Switch control block 7 and the side left end for the cooperation of switch 8 of reversing gear are provided with boss 71；The switch contact 26 of switch 8 of reversing gear is not hung
Normally open is in when reversing gear, when extension reverses gear, the switch contact 26 that switch control block 7 compresses the switch 8 that reverses gear becomes normal from normally opened
It closes, the switch contact 26 of neutral position switch 24 is in normally off in neutral gear position, and when putting into gear, switch control block 7 compresses neutral gear and opens
Closing 24 switch contact 26 has and normally closed becomes normally opened.The self-locking pin 22 of integrated form and block selecting shifting block 25 are symmetricly set on the shift
The two sides of shifting block 10, block selecting shifting block 25 are matched by the shift slot of gear shifting pulling head 10 with gear shifting pulling head 10；Block selecting feel component
The two sides for the lock control clamp dog 16 that reverses gear are symmetricly set on shift limit assembly, the end of the self-locking pin 22 of integrated form is provided with ball
Steel ball 27 reduces the frictional resistance between gear shifting pulling head 10, realizes the light target of shifting power；The setting of breather plug 6 is being fallen
The left side of position switch 8.Wherein, gear shifting pulling head 10 is connect with lateral gear lever 1 by 23 interference of filled circles pin；Switch control block
7, the lock control clamp dog 16 that reverses gear is connect with lateral gear lever 1 by 21 interference of elastic cylindrical pin.
Block selecting feel component include along manipulation enclosure body 5 be arranged radially feel plug screw 14, choosing reverse gear spring 13 and
Feel pin 15；Feel pin 15 and the feel contact of incline plane；Screw thread connects between feel plug screw 14 and manipulation enclosure body 5
It connects, and is provided with gasket 12 between manipulation enclosure body 5；Choosing reverses gear the setting of spring 13 in feel plug screw 14 and feel pin
Between 15, certain fine tuning can be realized to the size of power when selecting reverse gear.
Reverse gear 16 outer wall of lock control clamp dog side it is axially disposed have with shift limit assembly cooperation limiting slot 165,
Gear 16 outer wall of lock control clamp dog and the symmetrical other side of limiting slot 165 it is axially disposed have with block selecting feel component cooperate feel it is oblique
Face；Feel inclined-plane from left to right successively includes the first inclined-plane 161, the second inclined-plane 162, third inclined-plane 163, the 4th inclined-plane 164；The
One inclined-plane 161, the second inclined-plane 162, the slope K 1 on third inclined-plane 163, K2, K3 are negative, and the slope K 4 on the 4th inclined-plane 164 is
Just, and absolute value < K3 absolute value=K4 < K2 absolute value of K1；The feel pin on the second inclined-plane 162 and block selecting feel component
The cooperation positioning of 15 steel balls, which selects 1/2 gear and generates choosing, reverses gear feel.Wherein, the slope K 1=tan (180 ° of-A1) on the first inclined-plane 161,
A1=10 °~15 °；The slope K 2=tan (180 ° of-A2) on the second inclined-plane 162, A2=45 °~53 °；The slope on third inclined-plane 163
K3=tan (180 ° of-A3), A3=10 °~15 °；The slope K 4=tanA4 on the 4th inclined-plane 164, A4=10 °~15 °；A1,A2,
A3, A4 are respectively the angle on the first inclined-plane 161, the second inclined-plane 162, third inclined-plane 163, the 4th inclined-plane 164 and horizontal plane, and four
The slope on inclined-plane within the above range, family can be used to have preferable block selecting feel；It reverses gear other two side of lock control clamp dog 16
Wall is symmetrically arranged with the mounting hole 166 passed through for elastic cylindrical pin 21.
Shift limit assembly includes the plug screw 20 and pin 19 being arranged radially along manipulation enclosure body 5；Pin 19 is located at institute
It states in limiting slot 165；It is threadedly coupled between plug screw 20 and manipulation enclosure body 5, is moved axially for limiting pin 19.
Block selecting accessory part includes being symmetricly set on the secondary spring seat 9 at 10 both ends of gear shifting pulling head and being mounted on auxiliary
Block selecting secondary spring 11 between spring base 9 and gear shifting pulling head 10；Wherein, secondary spring seat 9 is matched with manipulation 5 gap of enclosure body
It closes.
Neutral position switch 24, the self-locking pin 22 of reverse gear switch 8, integrated form are threadedly coupled with manipulation enclosure body 5；Dustproof cover
Plate 2, end cap 4, seal cover board 17 are connect by bolt with manipulation enclosure body 5.
Above-mentioned block selecting accessory part can choose whether to install according to demand, and sky can more be accurately positioned after installation certainly
The position in block selecting direction is kept off, and the different of block selecting power are required to carry out debugging matching according to user, meets the manipulation of different user
Performance requirement.
As shown in Fig. 2, a kind of right control mechanism assembly of middle light truck, the difference with left control mechanism assembly are, laterally
The manipulatable end of gear lever 1 stretches out (when changing the outfit, it is only necessary to by lateral gear lever 1 with filled circles pin 23 from the right end of operating mechanism
180 ° are rotated for fulcrum), therefore oil sealing 3 and dust cover 2 are also disposed at right end, remaining parts are total with left operating mechanism
At identical, the installation direction including switch control block 7, gear shifting pulling head 10, the lock control clamp dog 16 that reverses gear also does not change.It reverses gear out
It closes 8, feel pin 15, select reverse gear spring 13 and the cooperation of feel plug screw 14 gear selection mechanism, pin 19, plug screw 20 and lock control of reversing gear
Block 16 cooperates shift limit mechanism, the installation site of neutral position switch 24 constant.
The course of work of the invention is as follows:
Shifting work:
When block selecting, gear shifting pulling head 10 moves axially together with lateral gear lever 1, while the ball of linear bearing 18 being driven to protect
The movement of frame component is held, the feel inclined-plane for the lock control clamp dog 16 that reverses gear can be compressed by feel pin 15 selects the spring 13 that reverse gear, shift to dial
First 10 compression block selecting secondary spring 11 generates block selecting feel jointly.
When putting into gear, gear shifting pulling head 10 compresses integrated form self-locking column with lateral gear lever 1 together axial rotation, gear shifting pulling head 10
Pin 22 generates shift-feel, meanwhile, the switch contact 26 that switch control block 7 compresses neutral position switch 24 makes neutral position switch 24 by normally closed
Become normally opened；When extension reverses gear, the switch contact 26 that switch control block 7 compresses the switch 8 that the reverses gear switch 8 that makes to reverse gear from normally opened becomes normal
It closes.
Shift limit work:
When gear shifting pulling head 10 is put into gear, when the lock control clamp dog 16 that reverses gear axially turns to the gear limit together with lateral gear lever 1,
The lock control clamp dog 16 that reverses gear is contacted with pin 19, can not be continued to rotate, and is completed the function of shift limit, can sufficiently be reduced and gear occur
The probability of shake.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art can readily occur in various equivalent modifications or replace in technical scope disclosed by the invention
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of middle light truck control mechanism assembly, it is characterised in that: changed including manipulation shell, setting in the manipulation intracorporal transverse direction of shell
Bar component, breather plug (6), the switch (8) that reverses gear, neutral position switch (24), block selecting shifting block (25), the self-locking pin of integrated form (22),
Block selecting feel component and shift limit assembly；
The laterally shift bar assembly includes lateral gear lever (1), and setting in the switch control of lateral gear lever (1) left part
Block (7), the gear shifting pulling head (10) at middle part, right part reverse gear lock control clamp dog (16)；
It is described to reverse gear switch (8) and neutral position switch (24) is symmetricly set on the two sides of the switch control block (7)；
The block selecting shifting block (25) and integrated form self-locking column pin (22) are symmetricly set on the two sides of the gear shifting pulling head (10)；
The block selecting feel component and shift limit assembly are symmetricly set on the two sides of lock control clamp dog (16) of reversing gear；
Breather plug (6) setting is in the left side for reversing gear switch (8)；
The manipulation shell includes ontology (5) and the end-cap assembly for being separately positioned on ontology (5) both ends；
The operating side of the transverse direction gear lever (1) is stretched out from the left or right of manipulation shell；
End-cap assembly corresponding with the operating side of lateral gear lever (1) includes end cap (4), dust cover (2), bearing (18) and oil
It seals (3)；
Another end-cap assembly includes end cap (4), seal cover board (17) and bearing (18).
2. middle light truck control mechanism assembly according to claim 1, it is characterised in that: it is described reverse gear lock control clamp dog (16) with
Lateral gear lever (1) is connected by elastic cylindrical pin (21) interference；
The axially disposed limiting slot having with shift limit assembly cooperation in the side of described lock control clamp dog (16) outer wall that reverses gear
(165)；
Reverse gear lock control clamp dog (16) outer wall and limiting slot (165) are symmetrical, and the other side is axially disposed has and block selecting feel group
The feel inclined-plane of part cooperation；
The feel inclined-plane from left to right successively includes the first inclined-plane (161), the second inclined-plane (162), third inclined-plane (163) and the
Four inclined-planes (164)；
First inclined-plane (161), the second inclined-plane (162), the slope K 1 of third inclined-plane (163), K2, K3 are negative, the 4th inclined-plane
(164) slope K 4 is positive, and absolute value < K3 absolute value=K4 < K2 absolute value of K1.
3. middle light truck control mechanism assembly according to claim 2, it is characterised in that: the block selecting feel component includes edge
Feel plug screw (14) that manipulation enclosure body (5) is arranged radially, choosing are reversed gear spring (13) and feel pin (15)；
1/2 gear is selected in the steel ball of feel pin (15) end and second inclined-plane (162) cooperation positioning, and generates choosing and reverse gear
Feel；
Gasket (12) are provided between the feel plug screw (14) and manipulation enclosure body (5)；
The choosing reverses gear spring (13) setting between feel plug screw (14) and feel pin (15).
4. middle light truck control mechanism assembly according to claim 2, it is characterised in that: the shift limit assembly includes edge
The plug screw (20) and pin (19) that manipulation enclosure body (5) is arranged radially；The pin (19) protrudes into the limiting slot (165)
It is interior.
5. middle light truck control mechanism assembly according to claim 1 to 4, it is characterised in that: further include being arranged in transverse direction
Block selecting accessory part on gear lever (1)；
The block selecting accessory part includes secondary spring seat (9), the Yi Jian for being symmetricly set on the gear shifting pulling head (10) both ends
Block selecting secondary spring (11) between secondary spring seat (9) and gear shifting pulling head (10)；
The secondary spring seat (9) and manipulation enclosure body (5) clearance fit.
6. middle light truck control mechanism assembly according to claim 5, it is characterised in that: switch (8) and the neutral gear of reversing gear
The end of switch (24) is provided with switch contact (26)；
The left part of switch control block (7) side is provided with the boss matched with the switch (8) switch contact (26) that reverses gear
(71)；The other side is axially disposed the groove (72) matched with neutral position switch (24) switch contact (26)；
Switch (8) switch contact (26) that reverses gear is in normally open, switch contact when extension reverses gear when not hanging and reversing gear
(26) become normally closed from normally opened；
Neutral position switch (24) switch contact (26) is in normally off, the switch contact (26) when putting into gear in neutral gear position
Become normally opened from normally closed.
7. middle light truck control mechanism assembly according to claim 6, it is characterised in that: the gear shifting pulling head (10) and transverse direction
Gear lever (1) is connected by (23) interference of filled circles pin.
8. middle light truck control mechanism assembly according to claim 7, it is characterised in that: the switch control block (7) and cross
It is connected to gear lever (1) by elastic cylindrical pin interference.
9. middle light truck control mechanism assembly according to claim 8, it is characterised in that: the neutral position switch (24) is reversed gear
Switch (8), the self-locking pin of integrated form (22) are threadedly coupled with manipulation enclosure body (5).
10. middle light truck control mechanism assembly according to claim 9, it is characterised in that: the dust cover (2), end cap
(4), seal cover board (17) is connect by bolt with manipulation enclosure body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156286.5A CN109931399B (en) | 2019-03-01 | 2019-03-01 | Medium-light truck operating mechanism assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156286.5A CN109931399B (en) | 2019-03-01 | 2019-03-01 | Medium-light truck operating mechanism assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109931399A true CN109931399A (en) | 2019-06-25 |
| CN109931399B CN109931399B (en) | 2024-04-12 |
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ID=66986319
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910156286.5A Active CN109931399B (en) | 2019-03-01 | 2019-03-01 | Medium-light truck operating mechanism assembly |
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| Country | Link |
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| CN (1) | CN109931399B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110985648A (en) * | 2019-12-24 | 2020-04-10 | 陕西法士特齿轮有限责任公司 | Transmission control assembly |
| CN115076358A (en) * | 2022-06-20 | 2022-09-20 | 宝鸡法士特齿轮有限责任公司 | Transmission control assembly |
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| CN209925597U (en) * | 2019-03-01 | 2020-01-10 | 宝鸡法士特齿轮有限责任公司 | Medium-light truck operating mechanism assembly |
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| JPH0791541A (en) * | 1993-09-22 | 1995-04-04 | Aisin Ee I Kk | Manual-transmission operating mechanism |
| CN102384257A (en) * | 2011-11-02 | 2012-03-21 | 中国重汽集团济南动力有限公司 | Shift selection and changing operation mechanism for heavy-duty gearbox |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Publication date |
|---|---|
| CN109931399B (en) | 2024-04-12 |
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