CN202085465U - Regulating type hydraulic raiser of small-power tractor - Google Patents
Regulating type hydraulic raiser of small-power tractor Download PDFInfo
- Publication number
- CN202085465U CN202085465U CN2011200953127U CN201120095312U CN202085465U CN 202085465 U CN202085465 U CN 202085465U CN 2011200953127 U CN2011200953127 U CN 2011200953127U CN 201120095312 U CN201120095312 U CN 201120095312U CN 202085465 U CN202085465 U CN 202085465U
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- Prior art keywords
- distributor
- assembly
- raiser
- regulating type
- feedback
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Abstract
The utility model provides a regulating type hydraulic raiser of a small-power tractor, comprising a casing, a cylinder head assembly, a cylinder, a control mechanism including a longitudinal mechanism, an operation handle, a piston assembly, an inner lift arm, a push rod assembly, a lifting shaft and an outer lift arm, and a distributor having a distributor housing, a main valve, a check valve assembly, a side cover and an operation feedback mechanism. The distributor is arranged at the right side of the raiser, and is connected to a sensing feedback lever assembly through the outer feedback arm on the operation feedback mechanism. The structures of various valves of the hydraulic distributor are further simplified. The regulating type hydraulic raiser is advantageous in that a cone valve is replaced by a ball valve, and a main valve pocket is removed; the structure is simple and the producing cost is greatly reduced; the number of processing parts and the number of varieties of the distributor body are equal to those of the distributor of a conventional simple raiser.
Description
Technical field
The utility model relates to agricultural mechanical field, particularly a kind of light tractor regulating type hydraulic rockshaft.
Background technology
At present, domestic small-power wheel tractor hydraulic rockshaft commonly used mainly contains two kinds of forms.A kind ofly be that the seventies design in last century, distributor and sensing mechanism are arranged in the lifter housing, band power, position joystick, can realize resistance control, position control and the control of floating.This lifter complex structure, poor reliability, maintenance inconvenience; Present this lifter still is widely used in Mount Taishan-25 type, on run quickly wild-300 types, the Dongfanghong-small-power wheel tractors such as MS250 type.Another kind of lifter is the simple lifter that adopts the following tractor with small four wheels of 14.7kw mostly, and its dispenser arrangement is in lifter shell right side, mono-lever control; The tilling depth of can not total travel controlling farm implements automatically only can realize artificially handling simple Position Control and the control of floating.This lifter is simple in structure, fault is less, but service behaviour is poor, is difficult to accurately to control the farm implements operating position, is difficult to control bit when control farm implements tilling depth uniformity and increases driver's the amount of labour.At present this simple lifter still be widely used in Golden Horse-250 model, Dongfanghong-240 type, on the tractors such as open country-250 model, east wind-250 model of running quickly.The tractor with small four wheels of this retaining power is not used for carrying out the operation of large traction load usually; So lifter is realized resistance control and be there is no need.And require lifter should have total travel to control the farm implements plowing position automatically, realize Position Control.And existing lifter complex structure, cost is higher, can not realize Position Control simultaneously and the control function of floating.
The utility model content
The utility model provides that a kind of functional reliability is good, simple in structure, convenient for maintaining, can satisfy light tractor regulating type hydraulic rockshaft.
The purpose of this utility model realizes as follows: a kind of light tractor regulating type hydraulic rockshaft, comprise: housing, cylinder head assembly, cylinder barrel, the operating mechanism that operating mechanism and control crank, piston assembly, interior lift arm and push rod assembly, lift shaft and outer lift arm constitute; Comprise the distributor of forming by distributor body, main valve, check valve assembly, oil return valve assembly and side cover and manipulation feedback mechanism, described distributor is installed in the right side of described lifter, and described distributor is connected with sensory feedback lever assembly by the external feedback arm of handling on the feedback mechanism.
As a kind of improvement of the present utility model, wherein: the main valve of described distributor does not have main valve housing.
As a kind of improvement of the present utility model, wherein: sensory feedback lever assembly is arranged on on the arranged off-centre straight pin that is loaded on the right cover plate of lift shaft.
Advantage of the present utility model: further simplify the structure of the various valves of pressure distributor (1), adopts ball valve to replace cone valve, has cancelled main valve housing.It is simple in structure, manufacturing cost reduces greatly.The part processing number of packages of its main distributor is suitable with the distributor of species number and former simple lifter.
(2) the lifter cylinder head adopts straight mantle formula safety valve, not only can be used as the oil cylinder safety valve and also have security of system valve function, and substitute measure such as former bevel-type valve arrangement with the decrease speed control valve of steel-ball type simple in structure, the lifter structure is simplified most, cost is low, and good reliability is not because distributor is provided with the security of system valve specially, just reduce a source of failure of distributor, and the lifter functional reliability is improved.
(3) adopt this novel lifter after, can make tractor have Position Control and unsteady control function, the serviceability of its lifter can meet or exceed the level of former this retaining power adjusting formula lifter.But structure has been simplified greatly, and manufacturing cost has also reduced.Novel lifter part processing species number only is 65～70% of former this retaining regulating type lifter.
Description of drawings
Content of the present invention is easier to be expressly understood in order to make, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is the vertical view of the utility model small-power wheel tractor regulating type lifter.
Fig. 2 is the section of structure of the external sealed pressure distributor of the utility model small-power wheel tractor.
Embodiment:
See illustrated in figures 1 and 2, a kind of light tractor regulating type hydraulic rockshaft, comprise: housing 3, cylinder head assembly 2, cylinder barrel 4, operating mechanism and control crank 5, piston assembly 6, interior lift arm and push rod assembly 7, the operating mechanism that lift shaft and outer lift arm 10 constitute, comprise by distributor body 12, main valve 13, check valve assembly 15, the distributor 1 that oil return valve assembly and side cover 16 and manipulation feedback mechanism 17 are formed, described distributor is installed in the right side of described lifter, described distributor 1 is connected with sensory feedback lever assembly 9 by the external feedback arm of handling on the feedback mechanism 17, the main valve 13 no main valve housings of described distributor 1, sensory feedback lever assembly 9 are arranged on on the arranged off-centre straight pin that is loaded on the right cover plate 8 of lift shaft.Its operation principle is assembling during distributor, and the main valve 13 that pairing the is chosen distributor body 12 of packing into refills return spring and bonnet earlier, and the check valve assembly 15 that then will assemble is with O type circle to pack in the unidirectional valve opening.To pack into after good with the housing facing-up in the housing oil return valve opening with the good oil return valve of distributor body 12 apolegamy again, and refill return spring and tighten with obstruction then.Install the last operating mechanism of installing behind the various valves of distributor.Control lever shaft, control arm, fork, feedback forearm and resetting shaft are loaded in the side cover, then fork is linked to each other with main valve by straight pin, side cover is connected with distributor again, adorns control crank and console panel assembly and external feedback arm 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, by assembly mark lift shaft and outer lift arm 10, axle sleeve, O type circle, back-up ring and cover plate 8 are installed, after cylinder barrel 4 pack into from lifter housing 3 front end band O type circles, reinstall piston assembly 6, then install the good cylinder head assembly 2 of adjusted, the outside original paper of bottom and lifter such as breather plug, upper connecting rod bearing 11 etc. are installed at last.After the lifter body installs, again 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, and the other end links to each other with straight pin on the lift shaft right cap 8, and at this moment, lifter installs, and this lifter can be realized Position Control and the control of floating.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. light tractor regulating type hydraulic rockshaft, comprise: housing (3), cylinder head assembly (2), cylinder barrel (4), the operating mechanism that operating mechanism and control crank (5), piston assembly (6), interior lift arm and push rod assembly (7), lift shaft and outer lift arm (10) constitute; It is characterized in that: comprise the distributor of forming by distributor body (12), main valve (13), check valve assembly (15), oil return valve assembly and side cover (16) and manipulation feedback mechanism (17) (1), described distributor is installed in the right side of described deduction device, and described distributor (1) is connected with sensory feedback lever assembly (9) by the external feedback arm of handling on the feedback mechanism (17).
2. according to the described light tractor regulating type of claim 1 hydraulic rockshaft, it is characterized in that: the no main valve housing of main valve (13) of described distributor (1).
3. according to claim 1 or 2 described light tractor regulating type hydraulic rockshafts, it is characterized in that: sensory feedback lever assembly (9) is arranged on on the arranged off-centre straight pin that is loaded on the right cover plate of lift shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200953127U CN202085465U (en) | 2011-04-02 | 2011-04-02 | Regulating type hydraulic raiser of small-power tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200953127U CN202085465U (en) | 2011-04-02 | 2011-04-02 | Regulating type hydraulic raiser of small-power tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202085465U true CN202085465U (en) | 2011-12-28 |
Family
ID=45360573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200953127U Expired - Fee Related CN202085465U (en) | 2011-04-02 | 2011-04-02 | Regulating type hydraulic raiser of small-power tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202085465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107295823A (en) * | 2017-07-10 | 2017-10-27 | 第拖拉机股份有限公司 | Hydraulic pressure elevator of tractor feedback mechanism and its operating method |
-
2011
- 2011-04-02 CN CN2011200953127U patent/CN202085465U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107295823A (en) * | 2017-07-10 | 2017-10-27 | 第拖拉机股份有限公司 | Hydraulic pressure elevator of tractor feedback mechanism and its operating method |
| CN107295823B (en) * | 2017-07-10 | 2023-05-02 | 第一拖拉机股份有限公司 | Tractor hydraulic lifter feedback mechanism and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20140402 |