CN2540730Y - Strong pressure regulatable lifter - Google Patents
Strong pressure regulatable lifter Download PDFInfo
- Publication number
- CN2540730Y CN2540730Y CN 02214479 CN02214479U CN2540730Y CN 2540730 Y CN2540730 Y CN 2540730Y CN 02214479 CN02214479 CN 02214479 CN 02214479 U CN02214479 U CN 02214479U CN 2540730 Y CN2540730 Y CN 2540730Y
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- Prior art keywords
- oil
- cylinder
- tool frame
- tractor
- oil cylinder
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- Expired - Fee Related
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- Lifting Devices For Agricultural Implements (AREA)
Abstract
Disclosed is a strong pressure adjustable lifting gear with, and the strong pressure adjustable lifting gear forms a complete set with a tractor to control rear-mounted agricultural equipment. A control handle (8) and a distributor (9) form a complete set and are arranged on the lateral face of a hydro-cylinder support bracket (12), a double-acting hydraulic cylinder (5) suspends at the upper end of the hydro-cylinder support bracket (12), a cylinder rod (3) is connected with a cross beam (H) of a tool frame (1), and a hydraulic pump (15) and a fuel tank (13) are mounted on the upper face of a gear box (16). Driven by the gear box (16), each hydraulic fuel tank is respectively communicated with the hydraulic pump (15), the distributor (9), the hydraulic cylinder (5) and the fuel tank (13), forming a fuel line. The changing of the gear of the control handle (8) can control the distributor (9) to correspondingly change the communication line of the fuel line, enabling the hydraulic cylinder (5) to drive the tool frame (1) to realize the actions such as lifting, descending, stopping and the like, and also enabling a plunger (23) and a plunger rod (3) to keep floating state in the hydraulic cylinder (5), consequently keeping the tool frame (1) under the relative stable position and self adjusting the height according to external force. When the external force eliminates, the tool frame (1) self recovers the initial state, prevents and avoids the collision damage of hydraulic elements and agricultural equipment, thereby maintaining the quality of field operation, improving production efficiency and increasing service life.
Description
(1) technical field
The utility model relates to the back suspension hydraulicefficiency elevation structure of tractor.
(2) background technology
Tractor with small four wheels is as the main machinery of farmland operation, can the multiple farm machinery of traction ploughs, harrows, farmland operation such as plough, and supporting facility hydraulic lift is absolutely necessary.For many years, hang hydraulic lifting system behind the tractor and never have big variation, drive lifter by gearbox and drive the lifting of rear suspension rods spare, though can supporting lifting on the structure, but reliability is lower in actual applications, fault is many, inconvenient maintenance, when carrying out farmland operation, tilling depth can only be by the hanging bar adjustment, when farm machinery are run into harder soil property or stone, owing to can not adjust automatically, usually damage farm machinery and Hydraulic Elements easily, influence operation quality and efficient, make troubles to the user.
(3) summary of the invention
The purpose of this utility model; just provide a kind of can self-adjusting hydraulic lifting apparatus; can utilize the tractor original structure fully; farm machinery can be regulated automatically according to the plot concrete condition; when guaranteeing operation quality, prevent overload operation; protection Hydraulic Elements and farm machinery are not impaired, increase the service life.Task of the present utility model is finished like this: design a kind of adjustable lifting device of suppressing, by control section, hydraulic part, the oil circuit part, the framework portion composition that grades, control section comprises control crank (8) and distributor (9), hydraulic part comprises hydraulic pump (15), oil cylinder (5), fuel tank (13), oil circuit partly comprises input oil pipe (14), output oil pipe (11), oil pipe on the oil cylinder (7), oil pipe under the oil cylinder (4), oil return pipe (10), rack section comprises cylinder bracket (12), tool frame bearing (19), tool frame (1) etc., each several part is assembled on the tractor, power transmission shaft and gear with gearbox (16) are made driving force, the tool frame (1) that is driven rack section by the operating hydraulically operated part of control section can be realized promoting, descend, in stop etc., and can make piston (23) and piston rod (3) in the oil cylinder (5) be in quick condition.The control crank of control section (8) is installed on the cylinder bracket (12) with distributor (9) is supporting, also can be installed in other appropriate location of tractor, on the output oil pipe (11) of distributor (9) and oil circuit part, the oil cylinder under oil pipe (7), the oil cylinder oil pipe (4), oil return pipe (10) be communicated with respectively.The hydraulic pump of hydraulic part (15) is selected gear pump or plunger pump for use, be installed on the gearbox (16) of tractor, power transmission shaft by gearbox (16), gear or capacity eccentric bearing drive, oil cylinder (5) is a two-way cylinder, the upper end connects with oil cylinder bearing pin (6), be fixedly mounted on the cylinder bracket (12), the piston rod (3) of oil cylinder (5) connects with piston rod bearing pin (2) with the crossbeam (H) of tool frame (1), fuel tank (13) fixed in position is at gearbox (16) top, also can be installed on other appropriate location of tractor, with output oil pipe (11), oil return pipe (10) is communicated with respectively, and is connected with hydraulic pump (15) by input oil pipe (14).The cylinder bracket of rack section (12) is vertically mounted on the back of seat, gearbox (16) and the fuel tank (13) of tractor, the upper end connects oil cylinder (5) with oil cylinder bearing pin (6), the side can fixedly mount distributor (9) and control crank (8), tool frame bearing (19) is fixed on the axle tube (17) of tractor hind axle with U-bolt (18) and clamp nut (20), tool frame (1) connects with bearing bearing pin (21) with tool frame bearing (19), and the crossbeam (H) of tool frame (1) is connected with piston rod bearing pin (2) with the piston rod (3) of oil cylinder (5).The control crank of control section (8) arrives the bottom in the neutral position dextrorotation of distributor (9), can make on output oil pipe (11), the oil cylinder that oil pipe (4) keeps being communicated with oil return pipe (10) simultaneously under oil pipe (7), the oil cylinder, reach each tubing pressure balance, oil cylinder (5) piston rod this moment (3) is in the free floating state.The original lifter of the available tractor of fuel tank (13) removes inner body reservation housing and makes fuel tank (13), and the installation site on tractor is constant.
Adopt the utility model and tractor; drive farm machinery and carry out every farmland operation; can adjust the height depth of farm machinery according to the soil regime in different plot voluntarily; by the different gears of change control crank (8) in distributor (9); lifting that can control equipment frame (1); descend; in stop; also can make the piston (23) in the oil cylinder (5) be in quick condition as required with piston rod (3); thereby guarantee to run well; operation is excess load not; protection Hydraulic Elements and farm machinery are not damaged by hard defects on the basis that guarantees operation quality, have prolonged service life effectively, and operating maintenance is convenient; improve efficient, reached predetermined purpose preferably.
(4) description of drawings
Fig. 1 is an overall structure installation diagram of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a hydraulic schematic diagram of the present utility model.
Among the figure, 1-tool frame, 2-piston rod bearing pin, 3-piston rod, oil pipe under the 4-oil cylinder, the 5-oil cylinder, 6-oil cylinder bearing pin, oil pipe on the 7-oil cylinder, 8-control crank, 9-distributor, the 10-oil return pipe, 11-output oil pipe, 12-cylinder bracket, 13-fuel tank, 14-input oil pipe, the 15-hydraulic pump, 16-gearbox, 17-axle tube, 18-U type bolt, 19-tool frame bearing, 20-clamp nut, 21-bearing bearing pin, 22-towing plate, the 23-piston, A-oil cylinder epicoele, B-oil cylinder cavity of resorption, H-tool frame crossbeam.
(5) specific embodiments
The utility model is described in further detail below in conjunction with accompanying drawing.
With the time wind SF200 type tractor make and suppress the adjustable lifting device, select FP-75 type distributor (9) and the supporting control section of doing of control crank (8) for use, select CBH-306 type hydraulic pump (15) for use, SG-70 type oil cylinder (5), utilize the lifter housing when fuel tank (13), form hydraulic part, make the oil pipe of oil circuit part with high pressure braided steel wire flexible pipe, make vertical cylinder bracket (12) with ordinary steel or gray iron, frame-type tool frame (1) with fixedly connected the tool frame bearing (19) of usefulness, cylinder bracket (12) is vertically mounted on the seat and gearbox (16) back of tractor, the upper end fixedly mounts distributor (9) and control crank (8) with the cylinder body of oil cylinder bearing pin (6) lifting oil cylinder (5), side.With on the fastening axle tube (17) that is installed in the tractor hind axle of tool frame bearing (19), use bearing bearing pin (21) that tool frame (1) is connected with tool frame bearing (19) with U-bolt (18) and clamp nut (20) again.The piston rod (3) of oil cylinder (5) stretches out to the back lower place, is connected with piston rod bearing pin (2) in the middle of the crossbeam (H) of tool frame (1).Fuel tank (13), hydraulic pump (15) all are fixedly mounted on the top of gearbox (16), be communicated with hydraulic part by route shown in Figure 3 with each oil pipe, with the power transmission shaft of gearbox (16) and supporting gear drive hydraulic pump (15) hydraulic oil in the fuel tank (13) is transported to distributor (9) by input oil pipe (14) and output oil pipe (11), again by control crank (8) as required control dispenser (9) open oil pipe (4) under oil pipe on the oil cylinder (7) or the oil cylinder, make oil cylinder (5) drive tool frame (1) promote, descend or in stop.Specific operation process is: control crank (8) is screwed into the bottom counterclockwise also pushes away downwards, the hydraulic oil that makes hydraulic pump (15) output is by output oil pipe (11) and distributor (9), pass through oil pipe on the oil cylinder (7) again and enter oil cylinder epicoele (A), compressing piston (23) and piston rod (3) are to descending, driving tool frame (1) descends, the hydraulic oil of oil cylinder cavity of resorption this moment (B) is back to distributor (9) by oil pipe under the oil cylinder (4), returns fuel tank by oil return pipe (10) again.To the neutral position, oil cylinder (5) stops in promptly realizing with control crank (8) plate, can make tool frame (1) keep being stabilized in desired location.Control crank (8) is upwards drawn, the hydraulic oil of hydraulic pump (15) output enters oil cylinder cavity of resorption (B) by oil pipe (4) under output oil pipe (11), distributor (9), the oil cylinder, promote piston (23) to up, driving tool frame (1) by piston rod (31) promotes, oil pipe (7) forms the loop on oil cylinder epicoele (A) and the oil cylinder, and hydraulic oil wherein is back to fuel tank (13) through distributor (9), oil return pipe (10).With control crank (8) plate return the neutral position again dextrorotation to the bottom, make on output oil pipe (11), distributor (9), the oil cylinder that oil pipe (4) is communicated with oil return pipe (10) simultaneously under oil pipe (7), the oil cylinder, this moment whole hydraulic part and oil circuit oil pressure relative equilibrium partly, piston (23) and piston rod (4) are in quick condition in oil cylinder (5), make tool frame (1) keep free floating, tool frame when being subjected to external force (1) can rise or descend with external force with piston rod (3), after external force was eliminated, tool frame (1) restPosed automatically.This structure can be regulated the height of tool frame (1) automatically, can prevent and avoid Hydraulic Elements and farm machinery rigid damage to occur effectively, guarantees the farmland operation quality, increases the service life.
Claims (6)
1, a kind of adjustable lifting device of suppressing, by control section, hydraulic part, the oil circuit part, the framework portion composition that grades, it is characterized in that control section comprises control crank (8) and distributor (9), hydraulic part comprises hydraulic pump (15), oil cylinder (5), fuel tank (13), oil circuit partly comprises input oil pipe (14), output oil pipe (11), oil pipe on the oil cylinder (7), oil pipe under the oil cylinder (4), oil return pipe (10), rack section comprises cylinder bracket (12), tool frame bearing (19), tool frame (1), various piece is assembled on the tractor, power transmission shaft and gear drive with gear box of tractor (16), making the operating hydraulically operated part of control section drive tool frame (1) realizes promoting, descend, in stop, and can make the piston rod (3) of oil cylinder (5) be in quick condition.
2, according to the described adjustable lifting device of suppressing of claim 1, it is characterized in that the control crank (8) and supporting last or other position of tractor of cylinder bracket (12) that is installed in of distributor (9) of said control section, distributor (9) partly is communicated with oil circuit.
3, according to the described adjustable lifting device of suppressing of claim 1, the hydraulic pump (15) that it is characterized in that said hydraulic part is gear pump or plunger pump, be installed on the gearbox (16) of tractor, power transmission shaft by gearbox (16), gear or capacity eccentric bearing drive, oil cylinder (5) is a two-way cylinder, the upper end connects cylinder bracket (12), the piston rod (3) of oil cylinder (5) is connected with the crossbeam (H) of tool frame (1), fuel tank (13) fixed in position is on gearbox (16) top or other position of tractor, with output oil pipe (11), oil return pipe (10) is communicated with respectively, and is connected with hydraulic pump (15) by input oil pipe (14).
4, according to the described adjustable lifting device of suppressing of claim 1, it is characterized in that the cylinder bracket (12) of said rack section is vertically mounted on the back of tractor seat and gearbox (16) and fuel tank (13), the upper end connects oil cylinder (5), the side can fixedly mount distributor (9) and control crank (8), tool frame bearing (19) is fixed on the axle tube (17) of tractor hind axle, tool frame (1) is connected with tool frame bearing (19), and the crossbeam (H) of tool frame (1) is connected with the piston rod (3) of oil cylinder (5).
5, according to the described adjustable lifting device of suppressing of claim 1, the control crank (8) that it is characterized in that said control section in the neutral position dextrorotation of distributor (9) to the bottom, can make on output oil pipe (11), the oil cylinder that oil pipe (4) keeps being communicated with oil return pipe (10) simultaneously under oil pipe (7), the oil cylinder, piston (23) and the piston rod (3) in the oil cylinder (5) is in the free floating state at this moment.
6, according to the described adjustable lifting device of suppressing of claim 3, it is characterized in that the original lifter of the available tractor of said fuel tank (13), remove inner part reservation housing and make fuel tank (13) that the installation site on tractor is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214479 CN2540730Y (en) | 2002-05-15 | 2002-05-15 | Strong pressure regulatable lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214479 CN2540730Y (en) | 2002-05-15 | 2002-05-15 | Strong pressure regulatable lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540730Y true CN2540730Y (en) | 2003-03-26 |
Family
ID=33693801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02214479 Expired - Fee Related CN2540730Y (en) | 2002-05-15 | 2002-05-15 | Strong pressure regulatable lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540730Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292633C (en) * | 2003-08-07 | 2007-01-03 | 中国农业大学 | Mountain-field tractor |
| CN101530023B (en) * | 2009-04-02 | 2011-04-13 | 金华职业技术学院 | Muddy field cultivator driving wheel position stepless adjusting unit |
| CN104780752A (en) * | 2012-11-06 | 2015-07-15 | 卡尔文·吉特·辛格 | Load sensing and lift cylinder adjusting to maintain constant towed load on a tractor |
| CN105103686A (en) * | 2015-09-30 | 2015-12-02 | 中南林业科技大学 | Soil loosening and hilling-up operation head capable of automatically avoiding underground hard obstacles and operation method |
| CN105284222A (en) * | 2015-09-30 | 2016-02-03 | 中南林业科技大学 | Soil loosening and earthing-up operation head capable of automatically avoiding obstacles and operation method |
| CN110001289A (en) * | 2019-04-29 | 2019-07-12 | 中联重机股份有限公司 | Wheeled agricultural machinery floating rear axle and wheeled agricultural machinery |
-
2002
- 2002-05-15 CN CN 02214479 patent/CN2540730Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292633C (en) * | 2003-08-07 | 2007-01-03 | 中国农业大学 | Mountain-field tractor |
| CN101530023B (en) * | 2009-04-02 | 2011-04-13 | 金华职业技术学院 | Muddy field cultivator driving wheel position stepless adjusting unit |
| CN104780752A (en) * | 2012-11-06 | 2015-07-15 | 卡尔文·吉特·辛格 | Load sensing and lift cylinder adjusting to maintain constant towed load on a tractor |
| CN105103686A (en) * | 2015-09-30 | 2015-12-02 | 中南林业科技大学 | Soil loosening and hilling-up operation head capable of automatically avoiding underground hard obstacles and operation method |
| CN105284222A (en) * | 2015-09-30 | 2016-02-03 | 中南林业科技大学 | Soil loosening and earthing-up operation head capable of automatically avoiding obstacles and operation method |
| CN105103686B (en) * | 2015-09-30 | 2017-03-22 | 中南林业科技大学 | Soil loosening and hilling-up operation head capable of automatically avoiding underground hard obstacles and operation method |
| CN110001289A (en) * | 2019-04-29 | 2019-07-12 | 中联重机股份有限公司 | Wheeled agricultural machinery floating rear axle and wheeled agricultural machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |