CN102359582A - Front-and-rear-driving steering wheel type tractor gear-shifting operation system - Google Patents
Front-and-rear-driving steering wheel type tractor gear-shifting operation system Download PDFInfo
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- CN102359582A CN102359582A CN2011102975318A CN201110297531A CN102359582A CN 102359582 A CN102359582 A CN 102359582A CN 2011102975318 A CN2011102975318 A CN 2011102975318A CN 201110297531 A CN201110297531 A CN 201110297531A CN 102359582 A CN102359582 A CN 102359582A
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Abstract
The invention discloses a front-and-rear-driving steering wheel type tractor gear-shifting operation system. The operation system is characterized in that a gear-shifting mechanism is provided with a gear-selecting swing arm, a gear-selecting shaft, a gear-shifting block assembly, a gear-shifting stop block, a stop jump ring and an oil filler assembly on the upper cover of a gear box; the main gear-shifting operation mechanism of the operation mechanism is connected to a gear-shifting rocker arm at the straight ahead and a gear-selecting rocker arm at the right side, wherein the gear-shifting rocker arm is connected with a gear-shifting swing arm through a gear-shifting flexible axis; the gear-selecting rocker arm is connected with the gear-selecting swing arm through a gear-selecting flexible axis, a rear drive operation handle is connected with a rear drive swing arm through a rear drive flexible axis, a fast-slow gear operation handle is connected with a fast-slow gear swing arm through a fast-slow gear flexible axis, and the stop block is connected with a gear-shifting fork. The operation system provided by the invention has simple structure, flexible and reliable gear-shifting operation; operation is labor-saving, simple and clear; and labor intensity of a driver is alleviated and drive security is enhanced.
Description
Technical field
The present invention relates to tractor, particularly front and back driving direction disc type tractor engage a gear operation system.
Background technique
Tractor is the important farm implements in rural area.At present; What the hand tractor engage a gear system of the overwhelming majority adopted is the mode of the direct engage a gear of long-armed stiff rod, the tractor of this engage a gear mode no matter have operator cabin whether when about turn constantly, the driver will follow the swing of gear bar could engage a gear; And operator cabin arranged also need open a very big hole forwardly; Driver's driving tractor under the environment of wind and weather is easy to cause and drives fatigue like this, and labor intensity is high; And very dangerous, directly have influence on driver's life safety.And such engage a gear mode, easy deformation in the using process of engage a gear bar can cause the disorderly phenomenon of shelves of trip stop; Particularly under steam tractor risk factor is quite big; Through reform and innovation, people used the operation system of flexible axle engage a gear on tractor afterwards, as:
Chinese patent CN200975480 discloses a kind of steering-wheel type tractor with small four wheels selector device; It passes assembly by gear shift and the shift control assembly constitutes; The gear shift transmitting assemblies comprises a lid; Main transformer in lid boss axis hole speed outer shaft, coaxial and be applied in axle in the main transformer speed in the main transformer speed outer shaft with main transformer speed outer shaft, and outside main transformer speed the secondary variable-speed shaft in next to axis, another boss axis hole of lid; The axle lower end has bulb knee section respectively in described main transformer speed outer shaft and the main transformer speed, and there is the right angle tumbler assembly secondary variable-speed shaft lower end; The shift control assembly comprises handles the location case; At the spacing frid of handling on the case of location of H shape; Be installed in the main shift lever in the H shape limit frid H model groove; Be installed in the other secondary speed change lever of main shift lever, a left side, the middle slide bar corresponding in handling the location case, the right slide bar corresponding with secondary speed change lever with main shift lever; A described left side, middle slide bar through flexible axle respectively with the gear shift transmitting assemblies in main transformer speed in axle, main transformer speed outer shaft is connected, right slide bar passes through flexible axle and is connected with secondary variable-speed shaft.There is easy abrasion in this structure because of main transformer speed outer shaft and main transformer speed outer shaft and has reason such as bulb knee distortion can cause random shelves, phenomenon such as out of supply, causes the unsafe hidden danger of generation in the using process.
Chinese patent CN201246464 discloses a kind of tractor selector device; Big lid in this mechanism has " H " shape gear limiting through hole and secondary variable-speed shaft; Little lid has main transformer speed positive axis and main transformer speed countershaft, and an end of main transformer speed positive axis has rocking arm, and the cutting ferrule of being with pivoted arm and being provided with the spill chute is arranged on it; One end of main transformer speed countershaft has rocking arm, and the other end has the tabular pivoted arm that is stuck in the spill chute; The main counter shaft of handling is arranged in the main manipulating box, be with axle sleeve on it, the main speed change positive axis of handling is housed on the axle sleeve, be with the main speed change lever of handling on it with positive pivoted arm with secondary pivoted arm; The secondary variable-speed shaft of handling is housed on the secondary manipulating box; The pair that is with band speed change pivoted arm on it is handled speed change lever; Positive pivoted arm is connected through flexible axle with the rocking arm of main transformer speed positive axis, is connected through the Lever type connection part between the rocking arm of speed change pivoted arm and secondary variable-speed shaft and between the rocking arm of secondary pivoted arm and the fast countershaft of main transformer.This model utility can be implemented in the indoor gear-change operation that carries out of tractor driving of sealing.But because the main transformer of the little lid of mechanism speed positive axis is towards the back, the distance of gearbox and operator cabin is too near, still needs the stiff rod connection; The range of movement that connects rod member and fixed cover is not enough; And engage a gear is dumb, and operation effort is inconvenient, can cause random shelves, phenomenon such as out of supply too.
Chinese patent CN201896932U; A kind of steering-wheel type tractor selector device is disclosed; Adopt flexible shaft line to realize handling gear shift; It comprises gear shift transmitting assemblies and shift control assembly, is characterized in: described gear shift transmitting assemblies comprises gearbox lower cover, gear-box top cover and transmission intermediate module, and the shift control assembly comprises choosing shelves flexible shaft line, secondary speed change flexible shaft line, main transformer speed flexible shaft line and is installed in main control member, the secondary control member in the operator cabin; Have gear shift flexibly, the characteristics of rapid operation, reliability and durability, the driver can carry out long-range gear-change operation in the operator cabin of sealing.But because the connection rod member of main engage a gear mechanism is too much, and need through improving the inner engage a gear shift fork of original gearbox, too complicated, direct control is not able to guarantee.
Summary of the invention
The present invention seeks to deficiency to existing technology; And a kind of simple in structure, engage a gear flexibility and reliability, rapid operation, simple and clear front and back driving direction disc type tractor engage a gear operation system are provided; It need not change the engage a gear shift fork of original gearbox, only needs the above component of processing gearbox loam cake, and remaining need not renewal part original gearbox; Just can realize installing, so just avoid too complicated design and installation.
A kind of front and back of the present invention driving direction disc type tractor engage a gear operation system; Its engage a gear mechanism comprises gearbox casing, former gearbox transmission system, shift fork, locating stud, flexible shaft line, handle etc.; Different with existing technology is: the gearbox loam cake is provided with the swing arm of choosing shelves, shift selection shaft, engage a gear block assembly, engage a gear limit stoper, spacing jump ring and oil filler assembly; The shift selection shaft of choosing shelves swing arm pierces into the engage a gear assembly earlier and passes coaxial aperture again; With spacing jump ring location; The bulb of engage a gear block assembly will stretch in the groove of second gear shift fork, third gear shift fork and one grade of shift fork, reverse speed fork, is connected with the engage a gear swing arm that fast slow running shaft swing arm assembly, fixing pin and the engage a gear bulb of the swing arm of speed retaining connect together with speed shelves shift fork and all is arranged on the gearbox loam cake shrouding assembly, and the engage a gear limiting stopper is arranged on the bottom of cap assembly on the gearbox.
Described swing arm is made up of rotating shaft, fixing pin and engage a gear bulb.
Described engage a gear limit stoper is made up of restraining groove and limiting stopper.
A kind of front and back of the present invention driving direction disc type tractor engage a gear operation system; Its operating mechanism comprises the engage a gear flexible shaft line, selects shelves flexible shaft line, rear driving flexible shaft line, speed shelves flexible shaft line and support thereof, is installed in operator cabin inner main engage a gear operating mechanism, rear driving Joystick, speed shelves Joystick in addition; Different with existing technology is: the engage a gear rocking arm that the dead ahead is arranged that main engage a gear operating mechanism connects out and the shift selecting rocking arm on right side, and wherein the engage a gear rocking arm is connected with the engage a gear swing arm through the engage a gear flexible shaft line; Shift selecting rocking arm is connected with the swing arm of choosing shelves through choosing shelves flexible shaft line, and the rear driving Joystick is connected with the rear driving swing arm through the rear driving flexible shaft line, and speed shelves Joystick is connected with the swing arm of speed shelves through speed shelves flexible shaft line, and limit stoper is connected with choosing shelves shift fork.
Advantage of the present invention is: this engage a gear control system provides a kind of engage a gear flexibility and reliability, rapid operation, simple and clear engage a gear mode, has solved a plurality of component such as U type rod member that the gearshift transmitting assemblies of present situation adopts, axle sleeve, connection rod member, movable rod member, and the link of this mechanism is too much; The room of accumulation is very big; Cause not in place, the random phenomenon of shelves, trip stop of engage a gear easily, it all is practical on the market ripe engage a gear operating component that the present invention is installed in operator cabin inner main engage a gear mechanism, speed shelves Joystick and rear driving Joystick, uses its engage a gear rocking arm, shift selecting rocking arm is installed on the stationary axle; Middle only just can being directly connected to through flexible shaft line becomes the outer rear driving swing arm of operator cabin, the swing arm of speed shelves, the swing arm of choosing shelves, engage a gear swing arm; Medium tache is few, and the gap is little, and has installed the spacing limiting stopper of engage a gear in the bottom of gearbox loam cake; With guiding engage a gear location and maintenance; So just make that engage a gear accurately puts in place, not random shelves are guaranteed the Security of driving.
Need not change all engage a gear shift forks of original gearbox in this engage a gear operation system; Only need design and the above component of processing gearbox loam cake; Remaining need not renewal part original gearbox, can realize installing, and has so just avoided too complicated design and installation.
In the middle of all component in the operation of this engage a gear, it is to use ripe on the market now operating component that the inner manipulation assembly of operator cabin is installed, and good reliability is durable; Arrange reasonable installation at operator cabin, make that like this cab space is bigger, than the operator that is easier to be provided with other; The phenomenon that does not interfere with each other, moreover, other control members of the gearbox loam cake that operator cabin is outside; Also be reasonable in design, not loaded down with trivial details, whole layout seems more reasonable; Can be implemented in the manipulation of carrying out tractor in the totally enclosed operator cabin, make the driver can improve travelling comfort, drive safety.
Description of drawings
Fig. 1 is the structural representation of driving direction disc type tractor engage a gear operation system before and after the present invention;
Fig. 2 is the plan view of Fig. 1;
The positive view of Fig. 3 gearbox;
The left sectional view of Fig. 4 gearbox;
The C of Fig. 5 engage a gear limiting stopper is to view.
Figure: 1. Cab 2.? Main hanging file manipulation mechanism 3.? Hanging file rocker 4? Selector rocker 5. Rear drive joystick 6 speed file manipulation handle 7. hanging file soft axis eight. soft axis gear selector 9. rear drive soft axis 10 speed file transfer axis 11 soft axis bracket 12. rear drive arm 13 speed file arm 14 gear selector arm 15. hanging file swing arm 16. gearbox cover seal plate 17. gearbox cover assembly 18. prodromal gearbox 19. speed file fork 20. pivot arm assembly speed file 21.? Guadang block assembly ? 22. election gear shaft 23. fuel filler assembly 24. solder ball hanging files engaging member? 25 Second, third gear fork 26. hanging files stopper 27 a, reverse fork 28. retaining clip 29.O-ring 30. fixed pin.
Embodiment
A kind of front and back of the present invention driving direction disc type tractor engage a gear operation system; Its engage a gear mechanism comprises gearbox casing, former gearbox transmission system, shift fork, locating stud, flexible shaft line, handle etc.; Forerunner's gearbox 18 loam cakes are provided with the swing arm 14 of choosing shelves, shift selection shaft 22, engage a gear block assembly 21, engage a gear limit stoper, spacing jump ring 28 and oil filler assembly 23; The shift selection shaft 22 of choosing shelves swing arm 14 pierces into engage a gear block assembly 21 earlier and passes coaxial aperture again; With spacing jump ring 28 location; The bulb of engage a gear block assembly 21 will stretch into two, in the groove of third gear shift fork 25 and, reverse speed fork 27; Be connected with the engage a gear swing arm 15 that speed shelves rotating shaft swing arm assembly 20, fixing pin 30 and the engage a gear bulb 24 of the swing arm 13 of speed retaining connect together with speed shelves shift fork 19 and all be arranged on the gearbox loam cake shrouding assembly 16, engage a gear limiting stopper 26 is arranged on the bottom of cap assembly 17 on the gearbox.
Described swing arm is made up of rotating shaft, fixing pin and engage a gear bulb.
Described engage a gear limit stoper is made up of restraining groove and limiting stopper.
A kind of front and back of the present invention driving direction disc type tractor engage a gear operation system; Its operating mechanism comprises engage a gear flexible shaft line 7, a choosing shelves flexible shaft line 8, rear driving flexible shaft line 9, speed shelves flexible shaft line 10 and support 11 thereof, is installed in operator cabin 1 inner main engage a gear operating mechanism 2, rear driving Joystick 5, speed shelves Joystick 6 in addition; The engage a gear rocking arm that the dead ahead is arranged 3 that main engage a gear operating mechanism 2 connections are come out and the shift selecting rocking arm 4 on right side, wherein engage a gear rocking arm 3 is connected with engage a gear swing arm 15 through engage a gear flexible shaft line 7; Shift selecting rocking arm 4 is connected with the swing arm 14 of choosing shelves through choosing shelves flexible shaft line 8, and rear driving Joystick 5 is connected with rear driving swing arm 12 through rear driving flexible shaft line 9, and speed shelves Joystick 6 is connected with speed shelves swing arm 13 through speed shelves flexible shaft line 10.
When engage a gear control system of the present invention is assembled, at first the gear shift cover on the original chassis of tractor is pulled down, guaranteed that two engage a gear shift forks are all at neutral gear position; Install cap assembly 17 on the foundry goods gearbox, engage a gear limiting stopper 26 is installed in the bottom of cap assembly 17 on the gearbox before this, installs after the loam cake; The position of guaranteeing limiting stopper is just in the centre of two engage a gear shift forks; Do not influence engage a gear,, be inserted in engage a gear block assembly 21, O RunddichtringO 29 simultaneously to the shift selection shaft 22 that swing arm 14 welds together with the choosing shelves is installed; After being installed in the coaxial aperture of gearbox loam cake foundry goods; Use jump ring 28 that it is spacing good again, spacingly rotate choosing shelves swing arm 14 after good and drive shift selection shafts 22 and rotate with shifting block assembly 21, the bulb of guaranteeing the fast assembly 21 of engage a gear just stretches into two, in the groove of third gear shift fork 25 and, reverse speed fork 27; Receive 26 restrictions of engage a gear limiting stopper during engage a gear choosing shelves, feasible random shelves; Secondly; Cover gearbox loam cake shrouding assembly 16; Before this; The speed shelves rotating shaft swing arm assembly of need installing on the gearbox loam cake shrouding assembly 16 20 that speed shelves swing arm 13 is arranged, be inserted in engage a gear bulb soldering member 24 and pack the assembly of engage a gear swing arm 15 into, guarantee 20 and 13,24 and 15 synchronism with fixing pin 30 fixations; Then, be connected with engage a gear swing arm 15 through engage a gear flexible shaft line 7; Shift selecting rocking arm 4 is connected with the swing arm 14 of choosing shelves through choosing shelves flexible shaft line 8; Rear driving Joystick 5 is connected with rear driving swing arm 12 through rear driving flexible shaft line 9; Speed shelves Joystick 6 is connected with speed shelves swing arm 13 through speed shelves flexible shaft line 10, accomplishes installation of the present invention.
When driving direction disc type tractor engage a gear operation system was used before and after the present invention, the driver just can accomplish all tractor engage a gears in the operator cabin the inside and handle.The driver selects a grade engage a gear based on the main engage a gear handle signal among Fig. 2, and the main engage a gear handle that swings is through shift selecting rocking arm 4, and connected choosing shelves flexible shaft line 8 drives choosing shelves swing arm 14 and rotates, and then rotates shift selection shaft 22 and realizes the choosing shelves with shifting block assembly 21; Swing master engage a gear handle is through engage a gear rocking arm 3; Connected engage a gear flexible shaft line 7 drives speed shelves swing arms 13 and rotates, the bulb of engage a gear bulb soldering member 24 will swing make shifting block assembly 21 along moving axially of shift selection shaft about 22 realize two, switching between the third gear or, reverse gear; Swing rear drive control crank 5 forward, connected rear drive flexible shaft line 9 drives rear drive swing arm 12 swings, just can realize the switching that front wheel driving or front and back drive; Swing speed shelves control crank 6 forward, connected speed shelves shaft axis 10 drives the switching that speed shelves swing arm 13 just can realize between the speed shelves.
Claims (2)
1. a front and back driving direction disc type tractor engage a gear operation system comprises the gearbox casing of engage a gear mechanism, former gearbox transmission system, shift fork, locating stud, flexible shaft line, handle; The engage a gear flexible shaft line of operating mechanism, a choosing shelves flexible shaft line, rear driving flexible shaft line, speed shelves flexible shaft line and support thereof, also comprise and be installed in operator cabin inner main engage a gear operating mechanism, rear driving Joystick, speed shelves Joystick; It is characterized in that: engage a gear mechanism gearbox loam cake is provided with the swing arm of choosing shelves, shift selection shaft, engage a gear block assembly, engage a gear limit stoper, spacing jump ring and oil filler assembly; The shift selection shaft of choosing shelves swing arm pierces into the engage a gear block assembly and passes coaxial aperture again; With spacing jump ring location; The bulb of engage a gear block assembly stretches in the groove of second gear shift fork, third gear shift fork and one grade of shift fork, reverse speed fork; Be connected with the engage a gear swing arm that speed shelves rotating shaft swing arm assembly, fixing pin and the engage a gear bulb of the swing arm of speed retaining connect together with speed shelves shift fork and all be arranged on the gearbox loam cake shrouding assembly, the engage a gear limiting stopper is arranged on the bottom of cap assembly on the gearbox; The engage a gear rocking arm that the dead ahead is arranged that the main engage a gear operating mechanism of operating mechanism connects out and the shift selecting rocking arm on right side, wherein the engage a gear rocking arm is connected with the engage a gear swing arm through the engage a gear flexible shaft line; Shift selecting rocking arm is connected with the swing arm of choosing shelves through choosing shelves flexible shaft line, and the rear driving Joystick is connected with the rear driving swing arm through the rear driving flexible shaft line, and speed shelves Joystick is connected with the swing arm of speed shelves through speed shelves flexible shaft line, and limit stoper is connected with choosing shelves shift fork.
2. a kind of front and back according to claim 1 driving direction disc type tractor engage a gear operation system is characterized in that: described shift selection shaft is connected with the swing arm of choosing shelves, engage a gear bulb soldering member and engage a gear limit stoper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102975318A CN102359582A (en) | 2011-09-30 | 2011-09-30 | Front-and-rear-driving steering wheel type tractor gear-shifting operation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102975318A CN102359582A (en) | 2011-09-30 | 2011-09-30 | Front-and-rear-driving steering wheel type tractor gear-shifting operation system |
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| Publication Number | Publication Date |
|---|---|
| CN102359582A true CN102359582A (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102975318A Pending CN102359582A (en) | 2011-09-30 | 2011-09-30 | Front-and-rear-driving steering wheel type tractor gear-shifting operation system |
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| CN (1) | CN102359582A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788152A (en) * | 2012-08-21 | 2012-11-21 | 广西腾峰科技有限公司 | Novel tractor |
| CN102797835A (en) * | 2012-08-16 | 2012-11-28 | 梧州山王拖拉机制造有限公司 | Soft axis shifting manipulating mechanism of tractor |
| CN104373594A (en) * | 2014-11-19 | 2015-02-25 | 重庆华世丹机械制造有限公司 | Reverse-gear-prevention limiting executing mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975480Y (en) * | 2006-09-14 | 2007-11-14 | 李镇奇 | Gear shifting control mechanism of steering wheel type small four-wheel tractor |
| CN101555942A (en) * | 2009-05-15 | 2009-10-14 | 杨国栋 | Gear shift mechanism of six-speed automobile speed changer |
| CN201896932U (en) * | 2010-12-15 | 2011-07-13 | 广西钦州力顺机械有限公司 | Shift control mechanism of steering wheel tractor |
| CN202228657U (en) * | 2011-09-30 | 2012-05-23 | 桂林同维汽车贸易有限公司 | Front-rear driving steering-wheel type tractor gear engaging operation system |
-
2011
- 2011-09-30 CN CN2011102975318A patent/CN102359582A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975480Y (en) * | 2006-09-14 | 2007-11-14 | 李镇奇 | Gear shifting control mechanism of steering wheel type small four-wheel tractor |
| CN101555942A (en) * | 2009-05-15 | 2009-10-14 | 杨国栋 | Gear shift mechanism of six-speed automobile speed changer |
| CN201896932U (en) * | 2010-12-15 | 2011-07-13 | 广西钦州力顺机械有限公司 | Shift control mechanism of steering wheel tractor |
| CN202228657U (en) * | 2011-09-30 | 2012-05-23 | 桂林同维汽车贸易有限公司 | Front-rear driving steering-wheel type tractor gear engaging operation system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797835A (en) * | 2012-08-16 | 2012-11-28 | 梧州山王拖拉机制造有限公司 | Soft axis shifting manipulating mechanism of tractor |
| CN102797835B (en) * | 2012-08-16 | 2015-01-21 | 梧州山王拖拉机制造有限公司 | Soft axis shifting manipulating mechanism of tractor |
| CN102788152A (en) * | 2012-08-21 | 2012-11-21 | 广西腾峰科技有限公司 | Novel tractor |
| CN102788152B (en) * | 2012-08-21 | 2015-05-13 | 广西腾峰科技有限公司 | Novel tractor |
| CN104373594A (en) * | 2014-11-19 | 2015-02-25 | 重庆华世丹机械制造有限公司 | Reverse-gear-prevention limiting executing mechanism |
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Application publication date: 20120222 |