CN104691618A - Differential steering device of crawler belt travelling mechanism - Google Patents
Differential steering device of crawler belt travelling mechanism Download PDFInfo
- Publication number
- CN104691618A CN104691618A CN201510139459.4A CN201510139459A CN104691618A CN 104691618 A CN104691618 A CN 104691618A CN 201510139459 A CN201510139459 A CN 201510139459A CN 104691618 A CN104691618 A CN 104691618A
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- differential
- output shaft
- control handle
- box
- joystick
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- 230000007246 mechanism Effects 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 241000219098 Parthenocissus Species 0.000 claims description 26
- 238000009826 distribution Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005021 gait Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/08—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using brakes or clutches as main steering-effecting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/12—Hand levers
- B62D1/14—Tillers, i.e. hand levers operating on steering columns
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Retarders (AREA)
Abstract
A differential steering device of a crawler belt travelling mechanism comprises a transmission differential box with a left output shaft and a right output shaft, a differential mechanism and a differential lock are arranged in the box, the differential mechanism distributes power from the input shaft to the left output shaft and the right output shaft, the left output shaft and the right output shaft are coupled and synchronously rotate by the differential lock, and the differential lock is provided with control handles outside the box; reset springs are connected with the control handles so as to enable the differential lock to stay in the coupling and locking state usually, the left output shaft and the right output shaft are provided with a friction type brake respectively, the left and the right friction type brakes are provided with brake handles outside the box, a left operating lever and a right operating lever both with hinge points are connected with the control handles via unidirectional push rods and are connected with the left and the right brake handles via pull rods, the control handles can be pushed to rotate by rotating the operating levers to enable the differential mechanism to drop out of the coupling and locking state and the brake handles are pulled to brake the output shafts on the corresponding sides. The transmission differential box widely applied to wheeled vehicles can also be used for the crawler belt travelling mechanism, and plays an important role promoting quick development of crawler belt type agricultural machinery equipment.
Description
Technical field
The present invention relates to a kind of creeper undercarriage, be specifically related to a kind of differential steering device of creeper undercarriage.
Background technology
Adopt the vehicle of creeper undercarriage in known technology, as track type tractor, owing to there is no the front of wheeled car to wheel mechanism, can only be run by the differential of both sides crawler belt and realize Vehicular turn.Realize both sides crawler belt differential to run common method and have: 1, realize differential by one-sided spin off method.By shift fork or arrangement of clutch, wherein side crawler belt is run out of steam driving, opposite side crawler belt driven is run, both sides crawler belt differential runs realization and turns to, as publication number a kind of crawler belt gearbox transmission steering hardware disclosed in the patent documentation of CN 203120416U, stir dual gear (11) by the shift fork (4) in change speed gear box exactly to make it to depart from sun gear (3) to engage, one-sided crawler belt is made to lose active force to realize differential steering, the deficiency of main existence high speed to turn to, be only applicable to low speed rotation to, seriously tie down entire vehicle operating efficiency, and turn to slow-witted hard, dumb, during adjustment in direction, pause and transition in rhythm or melody sense is strong, not mild.2, by machine-liquid-machine conversion, make both sides crawler belt run realization with different rotating speeds to turn to, as publication number be CN203567804U patent document discloses a kind of steering wheel type crawler vehicle electricity liquid steering hardware, by the change of controller to capacity of pump, left and right CD-ROM drive motor differential is run, realize crawler belt to turn to, when such technical scheme Problems existing is low cruise, the conversion efficiency of machine-liquid-machine is low, be difficult to realize high-power output, and production maintenance cost is high, its application and scope are subject to larger restriction.
Diff is the common important process parts of traffic mechanical field, the differential that can realize both sides axletree under the condition not cutting off power runs, flexible, level and smooth, the wide fast territory (comprising basic, normal, high speed) realizing vehicle is turned to and has a very important role, and structure is simple, driving efficiency is high, is therefore widely used in wheeled car.But, because diff is when carrying out both sides axletree power distribution, can automatically by power share preferential treatment dispensing to the less side of rotary resistance, form the state that faster, the slower person of fast person is slower, cause vehicle to produce and randomly turn to swing, the side-friction force that wheeled car mainly gives anterior steering wheel by ground suppresses, eliminates the auto-steering of vehicle to wave, and realizes the smooth running of vehicle.So, when not arranging anterior steering wheel, as creeper undercarriage, be the transmission differential gear being applicable to wheeled car simply cannot be diverted to creeper undercarriage, otherwise often can present during vehicle operating and randomly turn to swing, cannot normally work.
Summary of the invention
The present invention aims to provide a kind of differential steering device of creeper undercarriage, the transmission differential gear being applicable to wheeled car can be made to be diverted to creeper undercarriage, flexible, level and smooth, the wide fast territory realizing the steady linear running of vehicle and vehicle turns to, and high efficiency transmission and high-power output, meet several work demand.
The technical solution used in the present invention is: a kind of differential steering device of creeper undercarriage, comprise the transmission differential box being provided with left and right output shaft, diff and differential locking-device are set in casing, power distribution from input shaft is given left and right output shaft by diff, differential locking-device makes left and right output shaft shaft coupling synchronous axial system, and differential locking-device arranges control handle outside casing; Retracing spring connection control handle makes differential locking-device often be in shaft coupling lock-out state, left and right output shaft arranges frictin braek respectively, left and right frictin braek arranges clamping handle outside casing, there is the left and right joystick that is fixedly hinged a little by unidirectional push rod connection control handle, also connect left and right clamping handle respectively by pull bar, rotation joystick can promote control handle rotation makes diff exit shaft coupling lock-out state, and pulls clamping handle that the output shaft of respective side is braked; Described unidirectional push rod, referring to only can from one end to the other side transmitting thrust and cannot transmit the force transmission mechanism of pulling force.
When needing linear running, left and right joystick is in initial position, retracing spring connection control handle makes differential locking-device often be in shaft coupling lock-out state, left and right output shaft is forced synchronous axial system, and creeper undercarriage both sides crawler belt constant speed is run, therefore can the straight line moving (or retreat) of held stationary, running state is stable to be not easily disturbed, also there is higher driving efficiency, high-power output can be realized, be conducive to completing various operation smoothly.
When needing left steering, rotate left joystick, first joystick can promote control handle by unidirectional push rod, and the resistance making it to overcome retracing spring rotates and makes the differential locking-device in casing exit shaft coupling lock-out state, diff in casing plays efficacy, and left and right output shaft can run in differential mode; Simultaneously, left joystick can pull left clamping handle to make the friction brake work in left side, apply friction brakes to left output shaft to slow down, partial power share can be transferred to right output shaft by diff automatically smoothly, make left output shaft slow rotation, right output shaft twirl, realize smoothly turning to left; And the speed difference of left and right output shaft can be made to increase smoothly or to reduce due to diff, even if handling maneuver can be completed swimmingly when gait of march faster, there is no pause and transition in rhythm or melody sense, be conducive to equipment and improve job run efficiency; Especially, by controlling the amplitude size that left joystick rotates, just can control left side friction brake to the size of the brake resistance that left output shaft produces, distributed by the automatic power share of diff, left and right output shaft can be made to produce different velocity contrasts, thus realize the turning operation that creeper undercarriage carries out multiple radius.That is, left joystick rotation amplitude is less, creeper undercarriage turn radius is left larger, left joystick rotation amplitude is larger, creeper undercarriage turn radius is left less, only need change the rotation amplitude of left joystick smoothly, creeper undercarriage also can become another kind of turnon left radius running state from a kind of turnon left radius running state smoothly, show excellent alerting ability and handling, convenient operation person adjusts in time, correct service direction, improves the manoevreability of working equipment.When rotating left joystick by unidirectional push rod promotion control handle rotation, control handle can not pull right joystick to rotate and the running of impact right side output shaft by the unidirectional push rod on right side, because unidirectional push rod is only can from one end to the other side transmitting thrust and cannot transmit the force transmission mechanism of pulling force, the rotation of left and right joystick is separate, can not produce mutual interference.
When needing to exit left steering, unclamp left joystick and make it return, left clamping handle automatically resets, and left friction brake exits braking mode, and the braking force that left output shaft is subject to disappears and recovers normal rotation; Retracing spring orders about control handle reset makes differential locking-device reenter shaft coupling lock-out state, and left and right output shaft is rotated by shaft coupling forced synchronization, and creeper undercarriage recovers steady straight line moving.Certainly, turning operation is similar corresponding with the state of above-mentioned turning operation left to the right, no longer repeats to set forth.
Above-mentioned unidirectional push rod comprises female bar that round buss is longitudinally fixed in one end, and sub bar one end embeds in round buss, and the other end of female bar, sub bar connects joystick and control handle respectively.The thrust that joystick gives female bar transmits sub bar bottom round buss, promote control handle and rotate, otherwise the thrust that control handle gives sub bar also can, by passing to female bar bottom cylindrical sleeve, make joystick stressed; But control handle slides to the termination that the pulling force of sub bar only can make sub bar embed in cylindrical sleeve, and can not pass to joystick, vice versa.
Above-mentioned unidirectional push rod comprises female bar that one end is provided with chute, and sub bar one end is provided with slide block and is nested in the chute of female bar, and the other end of female bar, sub bar connects joystick and control handle respectively.The thrust that joystick gives female bar passes to sub bar through chute, slide block, promote control handle and rotate, but control handle can not pass to joystick to the pulling force that sub bar produces.
Above-mentioned transmission differential box is provided with gear lever, and box house is provided with transmission system.The operating speed of left and right output shaft can be changed by gear lever and transmission system, change the gait of march of creeper undercarriage, also can cut off the transmission of input shaft to left and right output shaft, make creeper undercarriage stop advancing.
The present invention, by changing differential locking-device conventional thought usually used as application of overcoming difficulties in short-term in vehicle, uses retracing spring differential locking-device to be often in shaft coupling lock-out state, the straight line moving performance that creeper undercarriage is possessed is good; Use joystick, unidirectional push rod to remove differential locking-device, recover diff function, and braking deceleration is carried out to one-sided output shaft, the turning efficiency in creeper undercarriage is possessed flexible, level and smooth, wide fast territory; Use the driveability of creeper undercarriage the is possessed high efficiency transmission of succinct, stable mechanical drive mode, high-power output; And, the transmission differential box being widely used in wheeled car is made to be diverted to creeper undercarriage, for shortening the production cycle, reducing productive costs, promoting that the fast development of high-power High Performance paddy field of new generation crawler type Agricultural Machinery Equipment has important impetus.
Accompanying drawing explanation
Fig. 1 is the forward sight constructional drawing of an embodiment of the present invention.
Fig. 2 is three-dimensional structure diagram embodiment illustrated in fig. 1.
Fig. 3 be embodiment illustrated in fig. 1 in the structure cut-away view of unidirectional push rod.
Fig. 4 is the another kind of structure cut-away view of unidirectional push rod in the present invention.
Detailed description of the invention
Below, by reference to the accompanying drawings the specific embodiment of the present invention is described further.
Fig. 1, Fig. 2 show a kind of embodiment of differential steering device of creeper undercarriage.Fig. 1 illustrates, this embodiment comprises the transmission differential box 1 being provided with left output shaft 11, right output shaft 12, diff and differential locking-device are set in casing, power distribution from input shaft 10 is given left output shaft 11, right output shaft 12 by diff, and differential locking-device makes left output shaft 11, right output shaft 12 shaft coupling synchronous axial system.Fig. 2 illustrates, differential locking-device arranges right control handle 21 outside casing, retracing spring 22 connects right control handle 21 makes differential locking-device often be in shaft coupling lock-out state, right output shaft 12 arranges frictin braek, frictin braek arranges right clamping handle 31 outside casing, have be fixedly hinged a little 41 right joystick 4 connect right control handle 21 by unidirectional push rod 23, also connect right clamping handle 31 by pull bar 32, rotation (moving) right joystick 4 can promote the rotation of right control handle 21 makes diff exit shaft coupling lock-out state, and pulls right clamping handle 31 that right output shaft 12 is braked; The thrust of right joystick 4 can be passed to right control handle 21 by unidirectional push rod 23, but right control handle 21 cannot by unidirectional push rod 23 to the right joystick 4 transmit pulling force; There is on the left of transmission differential box 1 symmetrical structure identical with right side.
Fig. 3 shows the structural representation of unidirectional push rod in Fig. 1, and comprise female bar 51 that round buss 511 is longitudinally fixed in one end, sub bar 52 one end is inserted in round buss 511, and the other end of female bar 51, sub bar 52 connects joystick and control handle respectively.The thrust that joystick gives female bar 51 passes to sub bar 52 bottom round buss 511, and sub bar 52 promotes control handle rotation makes diff exit shaft coupling lock-out state; But, if control handle rotates produce pulling force to sub bar 52, sub bar 52 only can be made to slide in the round buss 511 of female bar 51, can not female bar 51 be given by pull transfer and pull joystick.
Fig. 4 shows the another kind of embodiment of unidirectional push rod in the present invention, comprise female bar 61 that one end is provided with chute 611, sub bar 62 one end is provided with slide block 621 and is nested in the chute 611 of female bar 61, and the other end of female bar 61, sub bar 52 connects joystick and control handle respectively.
Certainly, the embodiment of unidirectional push rod is not limited to above-described embodiment, the technical schemes such as the multi-section type drawer sliding rail in known technology can also be adopted, only can from one end to the other side transmitting thrust and the force transmission mechanism of pulling force cannot be transmitted in known technology, all should be considered as the embodiment of unidirectional push rod in the present invention, belong to the scope that the claims in the present invention contain.
Claims (4)
1. the differential steering device of a creeper undercarriage, comprise the transmission differential box being provided with left and right output shaft, it is characterized in that in casing, arranging diff and differential locking-device, power distribution from input shaft is given left and right output shaft by diff, differential locking-device makes left and right output shaft shaft coupling synchronous axial system, and differential locking-device arranges control handle outside casing; Retracing spring connection control handle makes differential locking-device often be in shaft coupling lock-out state, left and right output shaft arranges frictin braek respectively, left and right frictin braek arranges clamping handle outside casing, there is the left and right joystick that is fixedly hinged a little by unidirectional push rod connection control handle, also connect left and right clamping handle respectively by pull bar, rotation joystick can promote control handle rotation makes diff exit shaft coupling lock-out state, and pulls clamping handle that the output shaft of respective side is braked; Described unidirectional push rod, referring to only can from one end to the other side transmitting thrust and cannot transmit the force transmission mechanism of pulling force.
2. the differential steering device of a kind of creeper undercarriage as claimed in claim 1, it is characterized in that described unidirectional push rod comprises female bar that round buss is longitudinally fixed in one end, sub bar one end embeds in round buss, and the other end of female bar, sub bar connects joystick and control handle respectively.
3. the differential steering device of a kind of creeper undercarriage as claimed in claim 1, it is characterized in that described unidirectional push rod comprises female bar that one end is provided with chute, sub bar one end is provided with slide block and is nested in the chute of female bar, and the other end of female bar, sub bar connects joystick and control handle respectively.
4. the differential steering device of a kind of creeper undercarriage as described in any one of claim 1-3, it is characterized in that described transmission differential box is provided with gear lever, box house is provided with transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139459.4A CN104691618A (en) | 2015-03-28 | 2015-03-28 | Differential steering device of crawler belt travelling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139459.4A CN104691618A (en) | 2015-03-28 | 2015-03-28 | Differential steering device of crawler belt travelling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104691618A true CN104691618A (en) | 2015-06-10 |
Family
ID=53339266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510139459.4A Pending CN104691618A (en) | 2015-03-28 | 2015-03-28 | Differential steering device of crawler belt travelling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104691618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218712A (en) * | 2016-08-29 | 2016-12-14 | 湖州思达机械制造有限公司 | Steering hydraulic device for harvester |
| CN115443744A (en) * | 2022-10-28 | 2022-12-09 | 南宁市桂发农机制造有限公司 | Brake steering control mechanism of self-propelled crawler-type rotary cultivator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR835199A (en) * | 1937-09-01 | 1938-12-14 | Olier Sa Ets A | Driving and steering gear for tractors and other vehicles |
| FR951482A (en) * | 1942-09-23 | 1949-10-26 | Steering and braking mechanism for machines without a steering wheel and performing agricultural work and traction | |
| JPH01293234A (en) * | 1988-05-18 | 1989-11-27 | Kubota Ltd | Paddy field working vehicle |
| JPH05268812A (en) * | 1992-03-26 | 1993-10-19 | Iseki & Co Ltd | Riding rice transplanter |
| JPH0592061U (en) * | 1992-05-20 | 1993-12-14 | 株式会社共立 | Crawler traveling vehicle |
| CN201344240Y (en) * | 2008-12-29 | 2009-11-11 | 许晓华 | Unidirectional electromotive handspike |
| CN102369798A (en) * | 2011-11-02 | 2012-03-14 | 湖北金驰机器有限公司 | Four-wheel drive multifunctional cultivating boat |
| CN204109298U (en) * | 2014-09-12 | 2015-01-21 | 李秋发 | Transmission with both rotary and horizontal motion |
| CN204506993U (en) * | 2015-03-28 | 2015-07-29 | 双峰县湘源金穗收割机制造有限公司 | A kind of differential steering device of creeper undercarriage |
-
2015
- 2015-03-28 CN CN201510139459.4A patent/CN104691618A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR835199A (en) * | 1937-09-01 | 1938-12-14 | Olier Sa Ets A | Driving and steering gear for tractors and other vehicles |
| FR951482A (en) * | 1942-09-23 | 1949-10-26 | Steering and braking mechanism for machines without a steering wheel and performing agricultural work and traction | |
| JPH01293234A (en) * | 1988-05-18 | 1989-11-27 | Kubota Ltd | Paddy field working vehicle |
| JPH05268812A (en) * | 1992-03-26 | 1993-10-19 | Iseki & Co Ltd | Riding rice transplanter |
| JPH0592061U (en) * | 1992-05-20 | 1993-12-14 | 株式会社共立 | Crawler traveling vehicle |
| CN201344240Y (en) * | 2008-12-29 | 2009-11-11 | 许晓华 | Unidirectional electromotive handspike |
| CN102369798A (en) * | 2011-11-02 | 2012-03-14 | 湖北金驰机器有限公司 | Four-wheel drive multifunctional cultivating boat |
| CN204109298U (en) * | 2014-09-12 | 2015-01-21 | 李秋发 | Transmission with both rotary and horizontal motion |
| CN204506993U (en) * | 2015-03-28 | 2015-07-29 | 双峰县湘源金穗收割机制造有限公司 | A kind of differential steering device of creeper undercarriage |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218712A (en) * | 2016-08-29 | 2016-12-14 | 湖州思达机械制造有限公司 | Steering hydraulic device for harvester |
| CN106218712B (en) * | 2016-08-29 | 2018-05-04 | 湖州思达机械制造有限公司 | Steering hydraulic device for harvester |
| CN115443744A (en) * | 2022-10-28 | 2022-12-09 | 南宁市桂发农机制造有限公司 | Brake steering control mechanism of self-propelled crawler-type rotary cultivator |
| CN115443744B (en) * | 2022-10-28 | 2024-03-08 | 南宁市桂发农机制造有限公司 | Braking steering control mechanism of self-propelled crawler-type rotary cultivator |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 417000 Shuangfeng Science and Technology Industrial Park, Loudi City, Hunan Province, 457 Hesen Avenue West Applicant after: Hunan Xiangyuan Jinsui Intelligent Equipment Co.,Ltd. Address before: 417700 Yongfeng Town Science and Technology Industrial Park, Shuangfeng County, Loudi City, Hunan Province Applicant before: SHUANGFENG COUNTY XIANGYUAN JINHUI HARVESTER MANUFACTURING CO.,LTD. |
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Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |