CN204610416U - A kind of levelling oil cylinder and leveling structure - Google Patents
A kind of levelling oil cylinder and leveling structure Download PDFInfo
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- CN204610416U CN204610416U CN201520095762.4U CN201520095762U CN204610416U CN 204610416 U CN204610416 U CN 204610416U CN 201520095762 U CN201520095762 U CN 201520095762U CN 204610416 U CN204610416 U CN 204610416U
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Abstract
The utility model relates to mechanized equipment field, particularly relates to a kind of levelling oil cylinder and leveling structure.Tandem hydraulic oil-way system uses very extensive in hydraulic transmission field, but the hydraulic cylinder synchronous problem of series connection oil circuit is difficult to solve always, in order to when not improving difficulty of processing, reduce the integrating error of series connection oil circuit hydraulic cylinder synchronism, realize this function in conjunction with electric control theory and hydraulic control circuit.
Description
Technical field
The utility model relates to mechanical field, particularly relates to a kind of levelling oil cylinder and leveling structure.
Background technique
The mode that is connected in series of oil cylinder is comparatively conventional, the form object of series connection oil circuit is exactly the action obtaining hydraulic cylinder synchronous rising or decline, but due to the processing of oil hydraulic cylinder and the calculating restriction of gross data, cannot make oil hydraulic cylinder meet in theory a cylinder rod chamber to go out oil volume just equal with the rodless cavity oil-feed volume of another cylinder, do not occur that in order to make tandem hydraulic loop hydraulic rod moves nonsynchronous deviation accumulation, thus design and a kind ofly in conjunction with the method for hydraulic principle and electrical control, the integrating error phenomenon in tandem hydraulic loop can be eliminated.
Model utility content
The object of model utility: in order to provide a kind of levelling oil cylinder and leveling structure of better effects if, specific purposes are shown in multiple substantial technological effects of concrete implementation section.
In order to reach as above object, the utility model takes following technological scheme:
Scheme one:
A kind of levelling oil cylinder, comprise the cavity of cylinder body and its inside, inside cavity has piston, comprises cylinder bottom bottom it, it is characterized in that, the housing that described cylinder bottom contacts with inside cavity comprises a rodless cavity filler opening, also comprise a pipeline, it is upper end filler opening that this pipeline comprises a port, this pipeline comprises two hydraulic fluid ports on the wall of cavity, be respectively leveling hydraulic fluid port and rod chamber hydraulic fluid port, leveling hydraulic fluid port is positioned on the housing of the stroke of piston, and rod chamber hydraulic fluid port is near cylinder cap.
The further technological scheme of the utility model is, described leveling hydraulic fluid port is throat structure.
Scheme two:
A kind of leveling structure, it is characterized in that, comprise two levelling oil cylinders, comprise the cavity of cylinder body and its inside, inside cavity has piston, cylinder bottom is comprised bottom it, the housing that described cylinder bottom contacts with inside cavity comprises a rodless cavity filler opening, also comprise a pipeline, it is upper end filler opening that this pipeline comprises a port, and this pipeline comprises two hydraulic fluid ports on the wall of cavity, is respectively leveling hydraulic fluid port and rod chamber hydraulic fluid port, leveling hydraulic fluid port is positioned on the housing of the stroke of piston, and rod chamber hydraulic fluid port is near cylinder cap; Two leveling cyclinder cascade, the rod chamber hydraulic fluid port of first leveling cyclinder connects the rodless cavity hydraulic fluid port of second leveling cyclinder, and the rodless cavity hydraulic fluid port of first leveling cyclinder is connected hydraulic oil container oil supply system with the rod chamber hydraulic fluid port of second leveling cyclinder.
The further technological scheme of the utility model is, described fuel tank oil supply system comprises fuel tank, the pipeline of fuel tank internal connects gear pump, the pipeline of gear pump also comprises relief valve, an one-way valve installed by pipeline after gear pump, connect a solenoid directional control valve subsequently, two oil circuit outlets of solenoid directional control valve pass into the rodless cavity hydraulic fluid port of first leveling cyclinder and the rod chamber hydraulic fluid port of second leveling cyclinder respectively.
The further technological scheme of the utility model is, described two leveling cyclinders are vertically arranged as load lifting cylinder structure.
Adopt the utility model of as above technological scheme, have following beneficial effect relative to prior art: can leveling be realized as elementary cell, can leveling be realized as cascaded structure.
Accompanying drawing explanation
In order to further illustrate the utility model, be described further below in conjunction with accompanying drawing:
Fig. 1 is the oil hydraulic cylinder cross-sectional view of model utility;
Fig. 2 is the electric control system point operation control leveling circuit structure diagram of model utility;
Fig. 3 is that the electric control system dual-button of model utility can stop leveling circuit structure diagram;
Fig. 4 is the upper end leveling hydraulic schematic diagram of model utility;
Fig. 5 is the lower end leveling hydraulic schematic diagram of model utility;
Wherein: 1. upper end filler opening; 2. cylinder bottom; 3. rodless cavity filler opening; 4. cylinder barrel; 5. piston; 6. piston rod; 7. leveling hydraulic fluid port; 8. rod chamber hydraulic fluid port; 9. cylinder cap; 10. load lifting cylinder one; 11. explosion-proof valves; 12. load lifting cylinders two; 13. solenoid directional control valves; 14. one-way valves; 15. relief valves; 16. motors; 17. gear pumps; 18. oil filters; 19. fuel tanks.
Embodiment
Be described embodiment of the present utility model below in conjunction with accompanying drawing, embodiment does not form restriction of the present utility model:
Scheme one:
A kind of levelling oil cylinder, comprise the cavity of cylinder body and its inside, inside cavity has piston, comprises cylinder bottom 2 bottom it, it is characterized in that, the housing that described cylinder bottom 2 contacts with inside cavity comprises a rodless cavity filler opening 3, also comprises a pipeline, it is upper end filler opening 1 that this pipeline comprises a port, this pipeline comprises two hydraulic fluid ports on the wall of cavity, be respectively leveling hydraulic fluid port 7 and rod chamber hydraulic fluid port 8, leveling hydraulic fluid port 7 is positioned on the housing of the stroke of piston, and rod chamber hydraulic fluid port 8 is near cylinder cap.
The technique effect of the essence that the technological scheme at this place plays and implementation procedure thereof are as follows: the oil circuit Placement of whole executive system is cascade, the rod chamber hydraulic fluid port of one cylinder connects the rodless cavity hydraulic fluid port of a cylinder, the hydraulic fluid port connecting fluid pressure control system at another two ends, leveling mode is for there to be two pressure balance hydraulic fluid ports when actuator moves to top, make the pressure of whole hydraulic system connect oil inlet and outlet force value is identical realizes whole leveling action when piston arrives hydraulic fluid port.
This oil hydraulic cylinder has more a leveling hydraulic fluid port than conventional cylinder, this leveling hydraulic fluid port can realize the asynchronous leveling of serial oil cylinders, when oil cylinder rises to top, when the piston bottom end of oil hydraulic cylinder crosses leveling hydraulic fluid port 7, can find out that the pressure oil of whole hydraulic system is in UNICOM's state by hydraulic schematic diagram, now all chamber pressure oil of serial oil cylinders are in unloading condition with no pressure, the piston rod of serial oil cylinders is all in wander up and down state, high one end will fall back to leveling oil port until the piston of two cylinders is all in leveling oil port when moving about, height residing for series cylinder two cylinder is identical realizes leveling action.
It is convenient that this patent realizes leveling, when not improving difficulty of processing, reduces the integrating error of series connection oil circuit hydraulic cylinder synchronism.
The further technological scheme of the utility model is, described leveling hydraulic fluid port 7 is throat structure.
Scheme two:
A kind of leveling structure, it is characterized in that, comprise two levelling oil cylinders, comprise the cavity of cylinder body and its inside, inside cavity has piston, cylinder bottom 2 is comprised bottom it, the housing that described cylinder bottom 2 contacts with inside cavity comprises a rodless cavity filler opening 3, also comprise a pipeline, it is upper end filler opening 1 that this pipeline comprises a port, and this pipeline comprises two hydraulic fluid ports on the wall of cavity, is respectively leveling hydraulic fluid port 7 and rod chamber hydraulic fluid port 8, leveling hydraulic fluid port 7 is positioned on the housing of the stroke of piston, and rod chamber hydraulic fluid port 8 is near cylinder cap; Two leveling cyclinder cascade, the rodless cavity hydraulic fluid port 3 that the rod chamber hydraulic fluid port 8 of first leveling cyclinder connects rodless cavity hydraulic fluid port 3, first leveling cyclinder of second leveling cyclinder is connected hydraulic oil container oil supply system with the rod chamber hydraulic fluid port 8 of second leveling cyclinder.The technique effect of the essence that the technological scheme at this place plays and implementation procedure thereof are as follows: comprise oil hydraulic pump, hydraulic control valve and oil hydraulic cylinder, the pressure oil provided by oil hydraulic pump, the flow direction being changed pressure oil by hydraulic control valve makes oil hydraulic cylinder realize a series of action.Described fuel tank oil supply system comprises fuel tank, the pipeline of fuel tank internal connects gear pump, the pipeline of gear pump also comprises relief valve, an one-way valve installed by pipeline after gear pump, connect a solenoid directional control valve subsequently, two oil circuit outlets of solenoid directional control valve pass into the rodless cavity hydraulic fluid port 8 of first leveling cyclinder and the leveling hydraulic fluid port 7 of second leveling cyclinder respectively.
The technique effect of the essence that the technological scheme at this place plays and implementation procedure thereof are for as follows: when leveling mouth is positioned at head side, its hydraulic schematic diagram such as specification accords with shown in Fig. 4.When leveling mouth is positioned at cylinder bottom end, its hydraulic schematic diagram is as shown in Figure of description 5.When leveling mouth is positioned at cylinder bottom end, its levelling principle is for when piston drops to leveling mouth, and hydraulic oil enters into another oil cylinder of series connection oil circuit continuation promotion from leveling mouth and makes its leveling.
In order to illustrate further the utility model, it should be noted that, following circuit is nonessential, because think that manually Valve controlling also can realize, specific implementation be noted that, this place illustrates the realization by circuit, nonsoftware realization also can realize, and automaticity is higher:
Composition graphs 2 and Fig. 3: leveling modular circuit presses SB0 leveling button, KA3 coil obtains electric KA3 and closes KT and obtain electric KA1 and obtain electric KA1 and close R and obtain the simultaneously solenoid valve commutation of electric electric motor starting, makes actuator obtain the forced feed of certain hour, makes two cylinder leveling.When rising module presses SB1, KA1 obtains electric KA1 and closes R and obtain the solenoid valve 1DT commutation simultaneously of electric electric motor starting, the KA1 dead electricity vertical motion stopping when position limit switch touch.When decline module presses SB2, KA2 obtains electric KA2 and closes R and obtain solenoid valve 2DT and the 5DT commutation simultaneously of electric electric motor starting, makes oil cylinder drop to bottom.Promote control module be coordinate to rise, decline and leveling action time control the start and stop of motor and each solenoid directional control valve commutation coordinate circuit.
The described leveling method described in automatical control system Fig. 3 is, when leveling hydraulic fluid port is positioned at head side, piston movement is to pressing leveling button SB0 during top, KA3 and KT coil simultaneously electric KA3 and KT close, now need to press SB1 again, the electric KA1 of KA1 closes R and obtains the solenoid valve commutation simultaneously of electric electric motor starting, and now can realize the action of leveling, if unclamp SB1, leveling action stops.
Leveling hydraulic schematic diagram described in described hydraulic system Fig. 4, the schematic diagram of this structure principle chart for using when leveling hydraulic fluid port is positioned at the head side of oil hydraulic cylinder, when piston crosses leveling hydraulic fluid port, the pipe-line system of whole hydraulic system is in pressure oil and is connected with fuel tank, but whole process is all in the extremely short time, under the state that the piston of two cylinders is all in wander up and down, two-piston is made to be positioned at travelling error by this travelling state, the error amount of whole series connection oil circuit is remained in travelling gap error, reaches the effect of leveling.
Leveling hydraulic schematic diagram described in described hydraulic system Fig. 5, the schematic diagram of this structure principle chart for using when being positioned at the cylinder bottom end of oil hydraulic cylinder when leveling hydraulic fluid port, the levelling principle of this structure is, when each piston drops to cylinder bottom, the hydraulic oil of right side oil hydraulic cylinder rod chamber enters series connection oil circuit by leveling hydraulic fluid port, the now motion of left hand piston bar not only relies on the pressure oil of right side rodless cavity to promote piston movement, also rely on the pressure oil of leveling hydraulic fluid port to realize the motion of piston, realize asynchronous the produced compensation of error of piston rod movement in this way.
Composition graphs 4 and Fig. 5, described two leveling cyclinders are vertically arranged as load lifting cylinder structure.
In a creative way, each effect above independently exists, and can also complete the combination of the above results with a nested structure.
Not shown part details.
It should be noted that, multiple schemes that this patent provides comprise basic scheme own, separate, mutually do not restrict, but it also can combine when not conflicting mutually, reaching multiple effect and jointly realizing.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.Those skilled in the art should understand the utility model and not be restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope.
Claims (5)
1. a levelling oil cylinder, comprise the cavity of cylinder body and its inside, inside cavity has piston, cylinder bottom (2) is comprised bottom it, it is characterized in that, the housing that described cylinder bottom (2) contacts with inside cavity comprises a rodless cavity filler opening (3), also comprise a pipeline, it is upper end filler opening (1) that this pipeline comprises a port, this pipeline comprises two hydraulic fluid ports on the wall of cavity, be respectively leveling hydraulic fluid port (7) and rod chamber hydraulic fluid port (8), leveling hydraulic fluid port (7) is positioned on the housing of the stroke of piston, rod chamber hydraulic fluid port (8) is near cylinder cap.
2. a kind of levelling oil cylinder as claimed in claim 1, is characterized in that, described leveling hydraulic fluid port (7) is throat structure.
3. a leveling structure, it is characterized in that, comprise two levelling oil cylinders, comprise the cavity of cylinder body and its inside, inside cavity has piston, cylinder bottom (2) is comprised bottom it, the housing that described cylinder bottom (2) contacts with inside cavity comprises a rodless cavity filler opening (3), also comprise a pipeline, it is upper end filler opening (1) that this pipeline comprises a port, this pipeline comprises two hydraulic fluid ports on the wall of cavity, be respectively leveling hydraulic fluid port (7) and rod chamber hydraulic fluid port (8), leveling hydraulic fluid port (7) is positioned on the housing of the stroke of piston, rod chamber hydraulic fluid port (8) is near cylinder cap, two leveling cyclinder cascade, the rod chamber hydraulic fluid port (8) of first leveling cyclinder connects the rodless cavity hydraulic fluid port (8) of second leveling cyclinder, and the rodless cavity hydraulic fluid port (8) of first leveling cyclinder is connected hydraulic oil container oil supply system with the rod chamber hydraulic fluid port of second leveling cyclinder.
4. a kind of leveling structure as claimed in claim 3, it is characterized in that, described fuel tank oil supply system comprises fuel tank, the pipeline of fuel tank internal connects gear pump, the pipeline of gear pump also comprises relief valve, an one-way valve installed by pipeline after gear pump, connects a solenoid directional control valve subsequently, and two oil circuit outlets of solenoid directional control valve pass into the rodless cavity hydraulic fluid port (8) of first leveling cyclinder and the rod chamber hydraulic fluid port of second leveling cyclinder respectively.
5. a kind of leveling structure as claimed in claim 3, is characterized in that, described two leveling cyclinders are vertically arranged as load lifting cylinder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095762.4U CN204610416U (en) | 2015-02-11 | 2015-02-11 | A kind of levelling oil cylinder and leveling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095762.4U CN204610416U (en) | 2015-02-11 | 2015-02-11 | A kind of levelling oil cylinder and leveling structure |
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| CN204610416U true CN204610416U (en) | 2015-09-02 |
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| CN201520095762.4U Active CN204610416U (en) | 2015-02-11 | 2015-02-11 | A kind of levelling oil cylinder and leveling structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387020A (en) * | 2015-12-28 | 2016-03-09 | 湖州环丰机械有限公司 | Cylinder body mechanism of upper derricking cylinder |
| CN105402195A (en) * | 2015-12-28 | 2016-03-16 | 湖州环丰机械有限公司 | Cylinder body structure of upper leveling oil cylinder |
| CN105443494A (en) * | 2015-12-28 | 2016-03-30 | 湖州环丰机械有限公司 | Upper leveling oil cylinder |
| CN108317115A (en) * | 2018-04-09 | 2018-07-24 | 中山市颉榕汽车维修检测设备有限公司 | Shearing type lifter levelling device, hoisting system and shearing type lifter |
-
2015
- 2015-02-11 CN CN201520095762.4U patent/CN204610416U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387020A (en) * | 2015-12-28 | 2016-03-09 | 湖州环丰机械有限公司 | Cylinder body mechanism of upper derricking cylinder |
| CN105402195A (en) * | 2015-12-28 | 2016-03-16 | 湖州环丰机械有限公司 | Cylinder body structure of upper leveling oil cylinder |
| CN105443494A (en) * | 2015-12-28 | 2016-03-30 | 湖州环丰机械有限公司 | Upper leveling oil cylinder |
| CN108317115A (en) * | 2018-04-09 | 2018-07-24 | 中山市颉榕汽车维修检测设备有限公司 | Shearing type lifter levelling device, hoisting system and shearing type lifter |
| CN108317115B (en) * | 2018-04-09 | 2023-08-04 | 中山市颉榕汽车维修检测设备有限公司 | Scissor type lifter leveling device, lifting system and scissor type lifter |
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| C14 | Grant of patent or utility model | ||
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Address after: 723000, Shaanxi province Hanzhoung Economic Development Zone North Xinyuan Office Village Dam Patentee after: Shaanxi Anzhong automobile tail Limited by Share Ltd Address before: 723000, Shaanxi province Hanzhoung Economic Development Zone North Xinyuan office dam village Patentee before: Shaanxi Anzhong Vehicle Tail Lift Co., Ltd. |