CN101327737B - Linkage safety device of tractor reverse gear lifting mechanism when driving - Google Patents
Linkage safety device of tractor reverse gear lifting mechanism when driving Download PDFInfo
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- CN101327737B CN101327737B CN2008100227541A CN200810022754A CN101327737B CN 101327737 B CN101327737 B CN 101327737B CN 2008100227541 A CN2008100227541 A CN 2008100227541A CN 200810022754 A CN200810022754 A CN 200810022754A CN 101327737 B CN101327737 B CN 101327737B
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- connecting rod
- lifter
- driving
- reverse gear
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Abstract
The present invention relates to a linkage safety protection device of an elevator which is used by a reverse-gear running tractor, and belongs to the technological field of suspension device of wheel tractor. The linkage safety protection device comprises a linkage mechanism which consists of an upper shift lever, an ejector pin, a connecting rod component and a riser operating component; a shift control transmission rod which is arranged on a box body is connected with a shift control rod; the upper shift lever is arranged on the shift control transmission rod; a reverse-gear shift lever which is arranged on the shift control transmission rod is arranged in a shift groove of a reverse-gear shifter; the reverse-gear shifter is arranged on a shaft of the reverse-gear shifter; the connecting rod component comprises a connecting shaft, a lower shift lever, and a connecting rod; the lower shift lever and the connecting rod are fixed on the connecting shaft; the riser operating component comprises a riser control rod, a rotating shaft and a swinging arm; the riser control rod and the swinging arm are fixedly connected with the rotating shaft; the rotating shaft is connected with the distributing valve of the riser; the connecting rod is hinged with the swinging arm; the ejector rod which is arranged on the box body is respectively connected with the upper shift lever and the lower shift lever. When the tractor runs reversely, the riser can be lifted, which effectively prevents the tractor and the farm machinery from being damaged.
Description
Technical field
The present invention relates to a kind of linkage safety device of tractor reverse gear lifting mechanism when driving, belong to the suspension gear technical field of wheel-tire tractor.
Background technology
Agricultural machinery and implement for mechanized, normally a hitch is installed in the rear portion of trac., the action of hydraulic efficiency gear control hitch makes agricultural machinery and implement be in the job position state of lifting or various different tilling depth, and the trac. outputting power offers agricultural machinery and implement to finish various operations.For rear-mounted agricultural machinery and implement, because that the lifter of hitch and trac. speed-change and gearshift do not have is any related, therefore, the routine operation requirement just can be carried out the transportation of routine after having only the operation lifter that agricultural machinery and implement are promoted.But in the practical operation, even if agricultural machinery and implement are in the control position of decline, trac. still can travel, therefore when the trac. backward, because the agricultural machinery and implement of not mentioning can work under power drives, the opposition of agricultural machinery and implement not only can cause box house bearing seat and train to damage, but also the destruction that can be easy to cause agricultural machinery and implement.
Summary of the invention
The purpose of this invention is to provide a kind ofly when the trac. backward, make lifter be in hoisting position simultaneously, promote agricultural machinery and implement, avoid the linkage safety device of the tractor reverse gear lifting mechanism when driving that trac. and agricultural machinery and implement damage.
The present invention for the technical scheme that achieves the above object is: a kind of linkage safety device of tractor reverse gear lifting mechanism when driving, it is characterized in that: comprise the link gear that driving lever, push rod, connecting rod assembly and lifter manipulation assembly constitute, the described speed change that is installed on the casing is handled the transmission bar and is connected with gear-change hand lever, last driving lever is installed in speed change and handles on the transmission bar, the reverse gear driving lever that is installed on the speed change manipulation transmission bar is arranged in the allocating slot of reverse speed fork, and reverse speed fork is installed on the reverse speed shift rod; Described connecting rod assembly comprises adapter shaft, is fixed on following driving lever and connecting rod on the adapter shaft, the lifter operating assembly comprises lifter joystick, rotating shaft and rocking arm, the lifter joystick is captiveed joint with rotating shaft with rocking arm, rotating shaft is connected with the distributing valve of lifter, connecting rod and rocking arm are hinged, and the push rod that is installed on the casing joins with last driving lever and following driving lever.
The present invention is provided with a link gear between the reverse gear control mechanism of former trac. and lifter steering unit, because handling the transmission bar by speed change, last driving lever is connected with the reverse gear driving lever, and reverse gear driving lever control reverse speed fork and reverse speed shift rod, so trac. is when moving ahead, this lifter can be in any control position, agricultural machinery and implement can be in as required and rise or lowering position, and when tractor reverse gear is driven a vehicle, in case operation gear-change hand lever, when then speed change manipulation transmission bar drive reverse gear driving lever makes reverse speed fork stir the transmission of cliding gear formation reverse gear, make driving lever depress push rod, push rod presses down the following driving lever of connecting rod assembly again, the lifter joystick that makes lifter handle assembly by connecting rod assembly lifts automatically, the distributing valve of lifter is opened, lifter is mentioned agricultural machinery and implement, reaches the purpose of reverse gear and lifter interlock, can not cause the damage of trac. and agricultural machinery and implement because of staff's misoperation.The present invention is owing to not changing former manipulation speed-changing mechanism and lifter, and is rational in infrastructure, is convenient to implement.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of the present invention when lifter is positioned at lowering position.
Fig. 2 is the structural representation of the present invention when lifter is positioned at hoisting position.
Wherein: 1-casing, 2-connecting rod assembly, driving lever under the 2-1-, 2-2-adapter shaft, the 2-3-connecting rod, 3-tip-lever support, 4-push rod, 5-reverse gear driving lever, the 6-speed change is handled and is transmitted bar, the last driving lever of 7-, 8-gear-change hand lever, the 9-reverse speed fork, 10-reverse speed shift rod, 11-pull bar, the 12-lifter is handled assembly, 12-1-lifter joystick, 12-2-rotating shaft, the 12-3-rocking arm, 13-positioning plate, 14-lifter lift arm.
The specific embodiment
See shown in Figure 1ly, the linkage safety device of tractor reverse gear lifting mechanism when driving of the present invention comprises that driving lever 7, push rod 4, connecting rod assembly 2 and lifter handle the link gear that assembly 12 constitutes.See shown in Figure 1, speed change of the present invention is handled transmission bar 6 and is installed in the casing 1, gear-change hand lever 8 is handled transmission bar 6 with speed change and is connected, last driving lever 7 is installed in speed change and handles on the transmission bar 6, reverse gear driving lever 5 is installed in speed change and handles on the transmission bar 6, the one end is arranged in the allocating slot of reverse speed fork 9, reverse speed fork 9 is installed on the reverse speed shift rod 10, the axial line that gear-change hand lever 8 controls are handled speed change and transmitted bar 6 rotates, speed change handles transmission bar 6 drive reverse gear driving levers 5 and reverse speed fork 9 is stirred cliding gear and cooresponding gear mesh forms the reverse gear transmission, 6 drives of the transmission of speed change manipulation simultaneously bar are gone up driving lever 7 and are handled the axial line rotation of transmission bar 6 along speed change, and depress push rod 4.See shown in Figure 1, connecting rod assembly 2 of the present invention comprises adapter shaft 2-2 and is fixed on following driving lever 2-1 and connecting rod 2-3 on the adapter shaft 2-2, best and the speed change manipulation transmission bar axis parallel of this adapter shaft 2-2, following driving lever 2-1 and connecting rod 2-3 are welded on the adapter shaft 2-2, angle between this time driving lever 2-1 and the connecting rod 2-3 is preferably between 120 °～140 ° between 110 °～150 °.See shown in Figure 1, lifter of the present invention is handled assembly 12 and is comprised lifter joystick 12-1, rotating shaft 12-2 and rocking arm 12-3, lifter joystick 12-1 and rocking arm 12-3 are welded on the rotating shaft 12-2, rotating shaft 12-2 passes positioning plate 13 and is connected with the distributing valve of lifter, keying by rotating shaft 12-2 Control Allocation valve, positioning plate 13 is provided with position-limited trough, the rotational angle of lifter joystick 12-1 is then limited by this position-limited trough, the connecting rod 2-3 of connecting rod assembly 2 can to handle the rocking arm 12-3 of assembly 12 hinged with lifter, this connecting rod 2-3 can adopt plate or steel rope etc., preferably as shown in Figure 1, the other end of connecting rod 2-3 also is hinged with pull bar 11, the other end of pull bar 11 is hinged with rocking arm 12-3 again, improve the reliability of operation, and the push rod that is installed on the casing 1 contacts with last driving lever 7 and following driving lever 2-1 respectively at two ends about in the of 4, perhaps go up driving lever 7 and following driving lever 2-1 and be separately positioned on the both sides up and down of push rod 4, and join with push rod 4 both sides, with moving axially of control push rod 4, has tip-lever support 3 on the casing 1,4 of push rods are installed in the tip-lever support 3 push rod 4 are play the guiding role, push rod 4 moves in tip-lever support 3, in the mounting hole of tip-lever support 3 wear-resistant sleeve is installed, when moving up and down to reduce push rod 4 to the wearing and tearing of tip-lever support 3.
See shown in Figure 1, trac. is when D Drive, and last driving lever 7 keeps original position, when the lifter joystick 12-1 of lifter manipulation assembly 12 is positioned at lowering position, hold push rod 4 with the following driving lever 2-1 of rocking arm 12-3 bonded assembly connecting rod assembly 2, the coupling end of lifter lift arm 14 is positioned at the bottom; When the lifter joystick 12-1 of lifter manipulation assembly 12 is positioned at hoisting position; the connecting rod 2-3 of the connecting rod assembly 2 that rocking arm 12-3 drives and following driving lever 2-1 rotate along the axial line of adapter shaft 2-2; at this moment; the end face of push rod 4 breaks away from upward driving lever 7; coupling end of lifter lift arm 14 is positioned at top, so lifter can be in any position.See shown in Figure 2, in case handling speed change, operation gear-change hand lever 8 transmits bar 6 drive reverse gear driving levers 5, when reverse speed fork 9 is stirred cliding gear, speed change is handled transmission bar 6 makes driving lever 7 depress push rod 4, push rod 4 promotes the end of the following driving lever 2-1 of connecting rod assembly 2, connecting rod 2-3 and following driving lever 2-1 rotate along the axial line of adapter shaft 2-2, connecting rod 2-3 lifts lifter joystick 12-1 by rocking arm 12-3 automatically, this moment, the distributing valve of lifter was opened under the effect of rotating shaft 12-2, lifter lift arm 14 is mentioned agricultural machinery and implement, reach the purpose that reverse gear gear shift and lifter promote interlock, avoided damaging the phenomenon of agricultural machinery and implement and trac. because of the trac. backward.
Claims (6)
1. the linkage safety device of a tractor reverse gear lifting mechanism when driving, it is characterized in that: comprise the link gear that driving lever (7), push rod (4), connecting rod assembly (2) and lifter manipulation assembly (12) constitute, the described speed change that is installed on the casing (1) is handled transmission bar (6) and is connected with gear-change hand lever (8), last driving lever (7) is installed in speed change and handles on the transmission bar (6), the reverse gear driving lever (5) that is installed on the speed change manipulation transmission bar (6) is arranged in the allocating slot of reverse speed fork (9), and reverse speed fork (9) is installed on the reverse speed shift rod (10); Described connecting rod assembly (2) comprises adapter shaft (2-2), be fixed on following driving lever (2-1) and connecting rod (2-3) on the adapter shaft (2-2), lifter operating assembly (12) comprises lifter joystick (12-1), rotating shaft (12-2) and rocking arm (12-3), lifter joystick (12-1) is captiveed joint with rotating shaft (12-2) with rocking arm (12-3), rotating shaft (12-2) is passed positioning plate (13) and is connected with the distributing valve of lifter, and positioning plate (13) is provided with position-limited trough, connecting rod (2-3) is hinged with rocking arm (12-3), and the push rod (4) that is installed on the casing (1) joins with last driving lever (7) and following driving lever (2-1).
2. the linkage safety device of 1 described tractor reverse gear lifting mechanism when driving as requested, it is characterized in that: the other end of described connecting rod (2-3) is hinged with pull bar (11), and the other end of pull bar (11) and rocking arm (12-3) are hinged.
3. the linkage safety device of 1 described tractor reverse gear lifting mechanism when driving as requested, it is characterized in that: described connecting rod (2-3) is a steel rope.
4. the linkage safety device of 1 described tractor reverse gear lifting mechanism when driving as requested, it is characterized in that: have tip-lever support (3) on the described casing (1), push rod (4) is installed in the mounting hole of tip-lever support (3).
5. the linkage safety device of 4 described tractor reverse gear lifting mechanism when drivings as requested is characterized in that: in the mounting hole of described tip-lever support (3) wear-resistant sleeve is installed.
6. the linkage safety device of 1 described tractor reverse gear lifting mechanism when driving as requested, it is characterized in that: the angle between described driving lever (2-1) down and the connecting rod (2-3) is between 110 °～150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100227541A CN101327737B (en) | 2008-07-28 | 2008-07-28 | Linkage safety device of tractor reverse gear lifting mechanism when driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100227541A CN101327737B (en) | 2008-07-28 | 2008-07-28 | Linkage safety device of tractor reverse gear lifting mechanism when driving |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101327737A CN101327737A (en) | 2008-12-24 |
| CN101327737B true CN101327737B (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100227541A Active CN101327737B (en) | 2008-07-28 | 2008-07-28 | Linkage safety device of tractor reverse gear lifting mechanism when driving |
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| CN (1) | CN101327737B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103081600B (en) * | 2012-12-24 | 2014-11-26 | 常州东风农机集团有限公司 | Linkage device of tractor lifter manipulation and power output |
| CN117128311B (en) * | 2023-10-20 | 2023-12-29 | 山东亿嘉农业机械装备股份有限公司 | Tractor main and auxiliary gear box operating mechanism assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3443756A1 (en) * | 1984-11-30 | 1986-06-12 | Deißenberger, Hans, 7240 Horb | Device for lifting and controlled unwinding and winding of a drum |
| CN2082531U (en) * | 1990-12-18 | 1991-08-14 | 席承苏 | Self moving hydraulic driving sprikling car |
| CN2850221Y (en) * | 2005-11-25 | 2006-12-27 | 闫前进 | Automatic mechanical overturn mechanism of reversible plow |
| US20070181317A1 (en) * | 2006-02-03 | 2007-08-09 | Electrolux Professional Outdoor Products, Inc. | Shift interlock mechanism |
| CN201245076Y (en) * | 2008-07-28 | 2009-05-27 | 常州东风农机集团有限公司 | Linkage safeguard protection device of tractor reverse gear driving raiser |
-
2008
- 2008-07-28 CN CN2008100227541A patent/CN101327737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3443756A1 (en) * | 1984-11-30 | 1986-06-12 | Deißenberger, Hans, 7240 Horb | Device for lifting and controlled unwinding and winding of a drum |
| CN2082531U (en) * | 1990-12-18 | 1991-08-14 | 席承苏 | Self moving hydraulic driving sprikling car |
| CN2850221Y (en) * | 2005-11-25 | 2006-12-27 | 闫前进 | Automatic mechanical overturn mechanism of reversible plow |
| US20070181317A1 (en) * | 2006-02-03 | 2007-08-09 | Electrolux Professional Outdoor Products, Inc. | Shift interlock mechanism |
| CN201245076Y (en) * | 2008-07-28 | 2009-05-27 | 常州东风农机集团有限公司 | Linkage safeguard protection device of tractor reverse gear driving raiser |
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| Publication number | Publication date |
|---|---|
| CN101327737A (en) | 2008-12-24 |
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