CN104782258A - Forced compression device of low power roller tractor - Google Patents
Forced compression device of low power roller tractor Download PDFInfo
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- CN104782258A CN104782258A CN201510195096.6A CN201510195096A CN104782258A CN 104782258 A CN104782258 A CN 104782258A CN 201510195096 A CN201510195096 A CN 201510195096A CN 104782258 A CN104782258 A CN 104782258A
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- hydraulic jack
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Abstract
The invention discloses a forced compression device of a low power roller tractor. The device comprises a lifter, a hydraulic oil cylinder is arranged in the lifter, the lifter is connected with a lifting rod, the lower end of the lifting rod is hinged to a lower link, the device further comprises an oil absorption filter, an oil absorption gear pump, an oil return filter, a floating multiway valve, a right oil cylinder and a left oil cylinder, one end of the oil absorption gear pump is connected to the hydraulic oil cylinder through the oil absorption filter, the other end of the oil absorption gear pump is connected with the inlet path of the floating multiway valve, the floating multiway valve is connected with the right oil cylinder and the left oil cylinder in sequence, the upper end of the right oil cylinder and the upper end of the left oil cylinder are both hinged to the lifting rod, a loop of the floating multiway valve is connected to the hydraulic oil cylinder through the oil return filter, a position control operation handle is further installed on the lifter, and the operation handle is connected with the floating multiway valve through a Q-shaped support. By means of the device, the problems that it is difficult for the low power roller tractor to break ground in hard soil, and the ploughing depth is shallow are solved.
Description
Technical field
The present invention relates to tractor servicing unit; Specifically device suppressed by a kind of small-power wheel tractor.
Background technology
At present, domestic existing middle low power wheel tractor great majority only can realize the lifting of farm machinery, and decline is the passive decline of deadweight relying on farm machinery.Burying for the existence of hard soil property, speed is slow, shallow defect of burying.
Through retrieval, do not find that existing tractor can have and make farm machinery force the device buried.
Summary of the invention
The object of the present invention is to provide a kind of small-power wheel tractor to suppress device, solve hard soil property middle low power wheel tractor farm machinery and to bury difficulty, problem that ploughing depth is shallow.
In order to reach above-mentioned purpose, present invention employs following technical scheme, device suppressed by a kind of small-power wheel tractor, comprise lifter, there is in lifter a hydraulic jack, lifter is connected with lifting arm, lifting arm lower end and lower link hinged, also comprise oil adsorption filter, oil suction gear pump, oil return cleaner, the floating banked direction control valves of band, right oil cylinder, left oil cylinder, described oil suction gear pump one end is connected to hydraulic jack by oil adsorption filter, the route of the other end and the floating banked direction control valves of band is connected, the described band banked direction control valves that floats connects right oil cylinder again successively, left oil cylinder, described right oil cylinder, left cylinder upper end is all hinged with lifting arm, the float loop of banked direction control valves of described band is connected to hydraulic jack by oil return cleaner again, described lifter is also installed a position control operating grip, described operating grip is connected by Q type support and the floating banked direction control valves of band.
Described right oil cylinder, left oil cylinder are all connected with respective limit valve.
Described right oil cylinder is also connected with to delay and falls valve, and described right oil cylinder connects limit valve successively, delays and fall valve, is then connected to the loop of the floating banked direction control valves of band.
Described lifting arm is also connected to operating grip by the position gag lever post of self front end.
Described operating grip is to when promoting position, oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, right oil cylinder lower oil cavitie is entered by being with floating banked direction control valves, the lower oil cavitie of left oil cylinder is entered by left oil cylinder lift line, left oil cylinder upper oil cavitie enters right oil cylinder upper oil cavitie by doing oil cylinder decline pipeline, then banked direction control valves is got back to by right oil cylinder decline pipeline, eventually pass return line, oil return cleaner enters hydraulic jack, complete the lifting of suppressing device;
When hydraulic jack control crank is to decline position, oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, right oil cylinder upper oil cavitie is entered by being with floating banked direction control valves, the upper oil cavitie of left oil cylinder is entered by left oil cylinder decline pipeline, left oil cylinder lower oil cavitie promotes and falls pipeline by making oil cylinder and enter right oil cylinder lower oil cavitie, then banked direction control valves is got back to by right oil cylinder lift line, eventually pass return line, oil return cleaner enters hydraulic jack, complete the decline of suppressing device;
When control crank is to neutral position, oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, by being with floating banked direction control valves directly to enter hydraulic jack through return line, oil return cleaner, complete the locking position suppressing device;
When operating grip is to floating bit: oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, directly hydraulic jack is entered through return line, oil return cleaner by being with floating banked direction control valves, upper oil cavitie is communicated with lower oil cavitie with return line with the pipeline that declines by promoting by left and right oil cylinder, and also hydraulic jack is communicated with simultaneously; Thus realize suppressing floating of device.
Compared to prior art, the present invention has following beneficial effect:
Oil suction gear pump provides high pressure liquid force feed, and then high pressure liquid force feed enters cylinder upper cavity oil or cavity of resorption through the floating banked direction control valves of band, farm machinery can be made to be in lifting, decline, floating three kinds of states, reduce cost simultaneously.Oil cylinder is provided with to delay and falls valve, limit valve, controls falling head and decrease speed.Position gag lever post is connected with control stick, controls the hoisting depth of farm machinery.
For the farming of hard soil property, farm machinery can be made to force to bury, increase ploughing depth.Control farm machinery decrease speed, be beneficial to protection farm machinery.Position control, floating control can be realized to farm machinery, be convenient to farming.
Accompanying drawing explanation
Fig. 1 is the structural representation that device suppressed by a kind of small-power wheel tractor of the present invention;
Fig. 2 is the schematic diagram that device suppressed by a kind of small-power wheel tractor of the present invention;
Fig. 3 is the oil cylinder mounting structure schematic diagram that device suppressed by a kind of small-power wheel tractor of the present invention.
In figure: 1, hydraulic jack; 2, oil adsorption filter; 3, oil suction gear pump; 4, oil return cleaner; 5, the floating banked direction control valves of band; 6, slow valve falls; 7, limit valve; 8, right oil cylinder; 9, left oil cylinder; 10, oil cylinder descending spacing block; 11, lifter; 12, lower link; 13, lifting arm; 14, oil cylinder piston; 15, position gag lever post; 16, operating grip; 17, inlet line; 18, pressure duct; 19, right oil cylinder lift line; 20, right oil cylinder decline pipeline; 21, return line; 22, left oil cylinder decline pipeline; 23, left oil cylinder lift line.
Embodiment
Detailed description for the present invention and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
According to Fig. 1-3, device suppressed by a kind of small-power wheel tractor, comprise lifter 11, there is in lifter a hydraulic jack 1, lifter is connected with lifting arm 13, lifting arm lower end and lower link 12 hinged, also comprise oil adsorption filter 2, oil suction gear pump 3, oil return cleaner 4, the floating banked direction control valves 5 of band, right oil cylinder 8, left oil cylinder 9, described oil suction gear pump one end is connected to hydraulic jack by oil adsorption filter 2, the route of the other end and the floating banked direction control valves 5 of band is connected, the described band banked direction control valves that floats connects again right oil cylinder 8 successively, left oil cylinder 9, described right oil cylinder, left cylinder upper end is all hinged with lifting arm, the float loop of banked direction control valves of described band is connected to hydraulic jack by oil return cleaner 4 again, described lifter is also installed a position control operating grip 16, described operating grip is connected by Q type support and the floating banked direction control valves of band.Described right oil cylinder, left oil cylinder are all connected with respective limit valve 7.Described right oil cylinder is also connected with to delay and falls valve 6, and described right oil cylinder connects limit valve successively, delays and fall valve, is then connected to the loop of the floating banked direction control valves of band.Described lifting arm is also connected to operating grip by the position gag lever post 15 of self front end.
Its course of work is as follows, when operating grip 16 is to lifting position, oil suction gear pump 3 is through oil adsorption filter 3, inlet line 17 oil suction from the hydraulic jack 1 lifter 11, the hydraulic oil produced is through 18 high-pressure oil pipes, right oil cylinder 8 lower oil cavitie is entered by being with floating banked direction control valves 5, the lower oil cavitie of left oil cylinder 9 is entered by left oil cylinder lift line 23, left oil cylinder 9 upper oil cavitie enters right oil cylinder 8 upper oil cavitie by doing oil cylinder decline pipeline 22, then banked direction control valves 5 is got back to by right oil cylinder decline pipeline 20, eventually pass return line 21, oil return cleaner 4 enters hydraulic jack 1, complete the lifting of suppressing device,
When hydraulic jack control crank is to decline position, oil suction gear pump 3 is through oil adsorption filter 2, inlet line 17 oil suction from the hydraulic jack 1 lifter 11, the hydraulic oil produced is through 18 high-pressure oil pipes, right oil cylinder 8 upper oil cavitie is entered by being with floating banked direction control valves 5, the upper oil cavitie of left oil cylinder 9 is entered by left oil cylinder decline pipeline 22, left oil cylinder 9 lower oil cavitie promotes and falls pipeline 23 by making oil cylinder and enter right oil cylinder 8 lower oil cavitie, then banked direction control valves 5 is got back to by right oil cylinder lift line 19, eventually pass return line 21, oil return cleaner 4 enters hydraulic jack 1, complete the decline of suppressing device,
When control crank is to neutral position, oil suction gear pump 3 is through oil adsorption filter 2, inlet line 17 oil suction from the hydraulic jack 1 lifter 11, the hydraulic oil produced is through 18 high-pressure oil pipes, by being with floating banked direction control valves 5 directly to enter hydraulic jack 1 through return line 21, oil return cleaner 4, complete the locking position suppressing device;
When operating grip is to floating bit: oil suction gear pump 3 is through oil adsorption filter 2, inlet line 17 oil suction from the hydraulic jack 1 lifter 11, the hydraulic oil produced is through 18 high-pressure oil pipes, directly hydraulic jack 1 is entered through return line 21, oil return cleaner 4 by being with floating banked direction control valves 5, upper oil cavitie is communicated with lower oil cavitie with return line with the pipeline that declines by promoting by left and right oil cylinder, and also hydraulic jack is communicated with simultaneously.Thus realize suppressing floating of device.
Suppress device when being in lifting state, when rising to desired location, position gag lever post 15 can promote control crank 16 makes the band banked direction control valves 5 that floats be switched to neutral position by raised position, realizes the control of position.
The foregoing is only preferred embodiment of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (5)
1. device suppressed by a small-power wheel tractor, comprise lifter, there is in lifter a hydraulic jack, lifter is connected with lifting arm, lifting arm lower end and lower link hinged, it is characterized in that, also comprise oil adsorption filter, oil suction gear pump, oil return cleaner, the floating banked direction control valves of band, right oil cylinder, left oil cylinder, described oil suction gear pump one end is connected to hydraulic jack by oil adsorption filter, the route of the other end and the floating banked direction control valves of band is connected, the described band banked direction control valves that floats connects right oil cylinder again successively, left oil cylinder, described right oil cylinder, left cylinder upper end is all hinged with lifting arm, the float loop of banked direction control valves of described band is connected to hydraulic jack by oil return cleaner again, described lifter is also installed a position control operating grip, described operating grip is connected by Q type support and the floating banked direction control valves of band.
2. device suppressed by a kind of small-power wheel tractor according to claim 1, it is characterized in that, described right oil cylinder, left oil cylinder are all connected with respective limit valve.
3. device suppressed by a kind of small-power wheel tractor according to claim 2, it is characterized in that, described right oil cylinder is also connected with to delay and falls valve, and described right oil cylinder connects limit valve successively, delays and fall valve, is then connected to the loop of the floating banked direction control valves of band.
4. device suppressed by a kind of small-power wheel tractor according to claim 1, it is characterized in that, described lifting arm is also connected to operating grip by the position gag lever post of self front end.
5. device suppressed by a kind of small-power wheel tractor according to claim 1, it is characterized in that, described operating grip is to when promoting position, oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, right oil cylinder lower oil cavitie is entered by being with floating banked direction control valves, the lower oil cavitie of left oil cylinder is entered by left oil cylinder lift line, left oil cylinder upper oil cavitie enters right oil cylinder upper oil cavitie by doing oil cylinder decline pipeline, then banked direction control valves is got back to by right oil cylinder decline pipeline, eventually pass return line, oil return cleaner enters hydraulic jack, complete the lifting of suppressing device,
When hydraulic jack control crank is to decline position, oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, right oil cylinder upper oil cavitie is entered by being with floating banked direction control valves, the upper oil cavitie of left oil cylinder is entered by left oil cylinder decline pipeline, left oil cylinder lower oil cavitie promotes and falls pipeline by making oil cylinder and enter right oil cylinder lower oil cavitie, then banked direction control valves is got back to by right oil cylinder lift line, eventually pass return line, oil return cleaner enters hydraulic jack, complete the decline of suppressing device;
When control crank is to neutral position, oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, by being with floating banked direction control valves directly to enter hydraulic jack through return line, oil return cleaner, complete the locking position suppressing device;
When operating grip is to floating bit: oil suction gear pump is through oil adsorption filter, inlet line oil suction from the hydraulic jack lifter, the hydraulic oil produced is through high-pressure oil pipe, directly hydraulic jack is entered through return line, oil return cleaner by being with floating banked direction control valves, upper oil cavitie is communicated with lower oil cavitie with return line with the pipeline that declines by promoting by left and right oil cylinder, and also hydraulic jack is communicated with simultaneously; Thus realize suppressing floating of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195096.6A CN104782258A (en) | 2015-04-23 | 2015-04-23 | Forced compression device of low power roller tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195096.6A CN104782258A (en) | 2015-04-23 | 2015-04-23 | Forced compression device of low power roller tractor |
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| Publication Number | Publication Date |
|---|---|
| CN104782258A true CN104782258A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510195096.6A Pending CN104782258A (en) | 2015-04-23 | 2015-04-23 | Forced compression device of low power roller tractor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402207A (en) * | 2016-01-11 | 2016-03-16 | 李惠远 | Tractor plow intelligent electrical control system and method |
| CN105993239A (en) * | 2016-07-12 | 2016-10-12 | 浙江亿森机械有限公司 | Tillage tractor provided with double forced pressing devices |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3522430A1 (en) * | 1985-06-22 | 1986-10-09 | Daimler-Benz Ag, 7000 Stuttgart | Hydraulic power lift for tractors |
| US20040177977A1 (en) * | 2003-03-14 | 2004-09-16 | Sauer-Danfoss (Nordborg) A/S | Vehicle with an attachment |
| CN2810128Y (en) * | 2005-07-19 | 2006-08-30 | 山东福田重工股份有限公司 | Hoister for tractor |
| JP2006345805A (en) * | 2005-06-17 | 2006-12-28 | Yanmar Co Ltd | Farm working machine |
| EP2377383A1 (en) * | 2010-04-19 | 2011-10-19 | Deere & Company | Implement hydraulic system |
| CN103987970A (en) * | 2012-02-03 | 2014-08-13 | 萱场工业株式会社 | Fluid pressure control device |
| CN103999589A (en) * | 2014-05-07 | 2014-08-27 | 武汉盛硕电子有限公司 | Farm tool lifting system for farming machine |
-
2015
- 2015-04-23 CN CN201510195096.6A patent/CN104782258A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3522430A1 (en) * | 1985-06-22 | 1986-10-09 | Daimler-Benz Ag, 7000 Stuttgart | Hydraulic power lift for tractors |
| US20040177977A1 (en) * | 2003-03-14 | 2004-09-16 | Sauer-Danfoss (Nordborg) A/S | Vehicle with an attachment |
| JP2006345805A (en) * | 2005-06-17 | 2006-12-28 | Yanmar Co Ltd | Farm working machine |
| CN2810128Y (en) * | 2005-07-19 | 2006-08-30 | 山东福田重工股份有限公司 | Hoister for tractor |
| EP2377383A1 (en) * | 2010-04-19 | 2011-10-19 | Deere & Company | Implement hydraulic system |
| CN103987970A (en) * | 2012-02-03 | 2014-08-13 | 萱场工业株式会社 | Fluid pressure control device |
| CN103999589A (en) * | 2014-05-07 | 2014-08-27 | 武汉盛硕电子有限公司 | Farm tool lifting system for farming machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402207A (en) * | 2016-01-11 | 2016-03-16 | 李惠远 | Tractor plow intelligent electrical control system and method |
| CN105993239A (en) * | 2016-07-12 | 2016-10-12 | 浙江亿森机械有限公司 | Tillage tractor provided with double forced pressing devices |
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Application publication date: 20150722 |
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