CN2802928Y - Regulating hydraulic lifter of medium and low power wheeled tractor - Google Patents
Regulating hydraulic lifter of medium and low power wheeled tractor Download PDFInfo
- Publication number
- CN2802928Y CN2802928Y CN 200520030861 CN200520030861U CN2802928Y CN 2802928 Y CN2802928 Y CN 2802928Y CN 200520030861 CN200520030861 CN 200520030861 CN 200520030861 U CN200520030861 U CN 200520030861U CN 2802928 Y CN2802928 Y CN 2802928Y
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- CN
- China
- Prior art keywords
- distributor
- lifter
- assembly
- low power
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lifting Devices For Agricultural Implements (AREA)
Abstract
The utility model relates to a regulating hydraulic lifter of a medium and low power wheeled tractor, which is mainly composed of a hydraulic distributor, a cylinder head assembly, a casing body, a cylinder barrel, a piston assembly, an inner lift arm, a push rod assembly, a lift shaft, an outer lift arm, etc. The external distributor without a lowering valve is attached to the right side of the casing body of the lifter. The position control and the floating control of the lifter is realized by the connection of the external feedback arm of the distributor, and a reaction lever assembly on a cylindrical pin which is in eccentric arrangement on the right cover plate of the lift shaft; the lifter uses a single operating handle to realize the position control and the floating control.
Description
(1) technical field:
The utility model belongs to the tractor field, relates to a kind of middle low power wheel tractor regulating type hydraulic rockshaft.
(2) background technology:
At present, domestic middle low power wheel tractor regulating type hydraulic rockshaft commonly used mainly contains two kinds of forms, a kind of is that the distributor and the sensory feedback mechanism of lifter is arranged in the lifter housing, has power and position joystick, can realize resistance control, Position Control and the control of floating.This lifter structure more complicated, reliability is relatively poor, and maintenance is also inconvenient; Another kind of lifter has the external distributor of lowering valve and the right outside that sensory feedback mechanism is arranged in the lifter housing, and single control crank can realizable force position Comprehensive Control, Position Control and the control of floating.This lifter maintenance platoon barrier is convenient, and quiet sedimentation is controlled easily, though functional reliability is better than above-mentioned lifter, because the many lowering valves of distributor increase a source of failure, functional reliability is still undesirable, and it is complicated that structure is still felt.
(3) summary of the invention:
The purpose of this utility model is to provide that a kind of functional reliability is good, simple in structure, cost is lower, uses easy to maintenancely, can satisfy the regulating type hydraulic rockshaft of the main instructions for use of middle low power wheel tractor.This lifter can subrogate country in middle low power tractor regulating type hydraulic rockshaft such as widely used Mount Taishan type, refreshing ox type.The technical solution of the utility model is: middle low power wheel tractor regulating type hydraulic rockshaft is mainly by pressure distributor 1, cylinder head assembly 2, housing 3, cylinder barrel 4, operating mechanism and control crank 5, piston assembly 6, interior lift arm and push rod assembly 7, lift shaft right side cover plate 8, sensory feedback lever assembly 9, lift shaft and outer lift arm 10, upper connecting rod bearing 11 compositions such as grade, it is characterized in that: the external sealed distributor 1 that is arranged in the lifter right side does not have lowering valve, directly control the oil extraction of oil cylinder with main valve 13 port for drawdown, the sensory feedback lever assembly 9 that is loaded on arranged off-centre cylinder Xiao on the right cover plate 8 of lift shaft is connected with distributor external feedback arm.
The utility model middle low power wheel tractor regulating type hydraulic rockshaft adopts the good effect that produces after the technique scheme to be:
(1) employing does not make its dispensing arrangement simpler with the distributor of lowering valve, and cost reduces.Particularly just do not reduced major failure source of distributor, thereby the distributor dependability is improved because distributor does not have lowering valve.
(2) hydraulic rockshaft can be realized Position Control and the control of floating, and can make the lifter designs simplification, and the part number reduces, and cost reduces.Simultaneously since the hydraulic valve of distributor especially the oil return valve number of times of working in the course of the work reduce, the lifter functional reliability is improved.
(3) the outer postpone of distributor, not only easy to adjust to lifter, and outside machine, all can hinder and needn't pull down lifter or distributor various hydraulic valve maintenances, row.
(4) description of drawings:
Fig. 1 is the vertical view of the utility model wheel tractor regulating type hydraulic rockshaft;
Fig. 2 is the external sealed pressure distributor structure chart of the utility model wheel tractor regulating type hydraulic rockshaft.
(5) embodiment; By shown in Figure 1, this hydraulic rockshaft mainly is made up of pressure distributor 1, cylinder head assembly 2, housing 3, cylinder barrel 4, operating mechanism and control crank 5, piston assembly 6, interior lift arm and push rod assembly 7, lift shaft right side cover plate 8, sensory feedback lever assembly 9, lift shaft and outer lift arm 10, upper connecting rod bearing 11 etc., and external sealed pressure distributor mainly is made up of distributor body 12, main valve 13, main valve housing 14, check valve assembly 15, side cover 16, manipulation feedback mechanism 17 etc.Assembling is during distributor, and the main valve housing of earlier pairing being chosen 14 is pressed into housing 12, and the main valve of again pairing being chosen 13 main valve housing 14 of packing into refills return spring and bonnet.Then will be and the good oil return valve of the housing facing-up housing oil return valve pocket of packing into, put into return spring and refill obstruction.The installation system safety valve is put into housing safety valve pocket bottom surface with O shape circle earlier then, reinstalls facing-up is good emergency valve seat and safety valve body, puts into safety valve spring and adjust pad to refill the safety valve obstruction.The check valve assembly band upper O-shape ring that then will assemble the unidirectional valve opening of housing of packing into.After having assembled the various valves of distributor, operating mechanism is installed at last, control lever shaft, control arm, fork, feedback forearm and resetting shaft are loaded in the side cover, then side cover is connected with distributor body, refill control crank and console panel assembly, the external feedback arm is installed at last.Distributor assembling is finished through debugging after good stand-by.
The lifter body then is installed, with the housing bottom surface up, put into lift arm and push rod assembly 7, tipping is joined after mark installs lift shaft and outer lift arm 10, axle sleeve, O shape circle, back-up ring and cover plate 8, encloses the cylinder barrel 4 of packing into from lifter housing 3 front end band O shapes, reinstall piston assembly 6, then install tested cylinder head assembly 2, bottom and lifter outer member such as breather plug, upper connecting rod bearing 11 etc. are installed at last.After the lifter body installs, again external dispenser assembly is loaded on lifter housing right flank with bolt, at last that adjusted is good sensory feedback lever assembly 9 one ends link to each other with the external feedback arm of distributor, the other end links to each other with cylinder Xiao on the lift shaft right cap 8, and at this moment lifter installs.This lifter can be realized Position Control and the control of floating.
Claims (1)
1. middle low power wheel tractor regulating type hydraulic rockshaft, mainly by pressure distributor (1), cylinder head assembly (2), housing (3), cylinder barrel (4), operating mechanism and control crank (5), piston assembly (6), interior lift arm and push rod assembly (7), lift shaft right side cover plate (8), sensory feedback lever assembly (9), lift shaft and outer lift arm (10), upper connecting rod bearing compositions such as (11), it is characterized in that: the external sealed distributor (1) that is arranged in the lifter right side does not have lowering valve, directly control the oil extraction of oil cylinder with main valve (13) port for drawdown, the sensory feedback lever assembly (9) that is loaded on arranged off-centre cylinder Xiao on the right cover plate of lift shaft (8) is connected with distributor external feedback arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030861 CN2802928Y (en) | 2005-06-03 | 2005-06-03 | Regulating hydraulic lifter of medium and low power wheeled tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030861 CN2802928Y (en) | 2005-06-03 | 2005-06-03 | Regulating hydraulic lifter of medium and low power wheeled tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802928Y true CN2802928Y (en) | 2006-08-09 |
Family
ID=36908235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030861 Expired - Fee Related CN2802928Y (en) | 2005-06-03 | 2005-06-03 | Regulating hydraulic lifter of medium and low power wheeled tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802928Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101990797A (en) * | 2010-09-01 | 2011-03-30 | 中国一拖集团有限公司 | Combined hydraulic fluid distributor for tractor |
| CN102878140A (en) * | 2012-10-24 | 2013-01-16 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
-
2005
- 2005-06-03 CN CN 200520030861 patent/CN2802928Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101990797A (en) * | 2010-09-01 | 2011-03-30 | 中国一拖集团有限公司 | Combined hydraulic fluid distributor for tractor |
| CN102878140A (en) * | 2012-10-24 | 2013-01-16 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
| CN102878140B (en) * | 2012-10-24 | 2015-04-29 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Lianfakedi Machinery Co., Ltd. Assignor: Wu Xizhang Contract record no.: 2011320000836 Denomination of utility model: Regulating hydraulic lifter of medium and low power wheeled tractor Granted publication date: 20060809 License type: Exclusive License Record date: 20110620 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060809 Termination date: 20130603 |