CN204512056U - A kind of rotary drilling rig hydraulic jack - Google Patents
A kind of rotary drilling rig hydraulic jack Download PDFInfo
- Publication number
- CN204512056U CN204512056U CN201520101435.5U CN201520101435U CN204512056U CN 204512056 U CN204512056 U CN 204512056U CN 201520101435 U CN201520101435 U CN 201520101435U CN 204512056 U CN204512056 U CN 204512056U
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- piston rod
- rod
- bar
- oil inlet
- chamber
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Abstract
A kind of rotary drilling rig hydraulic jack, comprise cylinder barrel, be arranged at cylinder barrel inner and cylinder barrel interior separation is become the cylinder bottom in two bar chambeies, be arranged at the small piston rod in bar chamber, cylinder barrel one end and little bar piston thereof, and the large piston rod be arranged in cylinder barrel the other end bar chamber and large bar piston thereof, the guide sleeve being provided with installation piston rod seal component towards outer end in two bar chambeies, it is characterized in that, described small piston rod is provided with rod chamber oil inlet passage, large piston rod is provided with rodless cavity oil inlet passage, cylinder bottom is provided with the rodless cavity communicating passage of connection two rodless cavities, and two rod chambers are communicated with steel pipe connection by rod chamber.The utility model by being arranged in piston rod by oil inlet passage, and arranges rodless cavity communicating passage at cylinder bottom, greatly reduces the pipeline cost of oil cylinder, reduces line loss, improve the pipeline life-span.
Description
Technical field
Rotary drilling rig used in the utility model engineering construction, particularly rotary drilling rig hydraulic element.
Background technique
Rotary drilling rig is a kind of efficient pore-forming equipment of widely used heavy caliber in foundation construction of fully hydraulic driven, because its power is large, power is strong, easy to use, pore-forming quick, is widely used in the pile foundation construction of engineering, building.Rotary drilling rig, in construction, needs to drive the vertical mast of realization, movable mast, vertical adjustment by hydraulic jack, to the action such as hole and pressurization, these actions is links very important in construction.Therefore, the design of rational oil cylinder, can improve oil cylinder working life, improve the performance of rotary drilling rig.
Existing rotary drilling rig adopts large three-legged structure rotary drilling rig especially, because oil cylinder stroke when vertical mast, movable mast is very long, mast oil cylinder uses a kind of two rod four action oil cylinder, namely an oil cylinder has two groups of pistons, two piston rods, piston rod small one and large one, large piston rod stroke is long, small piston rod stroke is short, large piston rod is used for the movable mast of rotary drilling rig and vertical mast, to improve piston rod intensity and the amount of deflection of Long travel oil cylinder, after mast erects, namely and between cylinder barrel this piston rod is fixed, and can not stretch again; Mast vertical adjustment when small piston rod is used for rotary drilling rig construction and hang drilling rod, the lifting surface area of loculus during to increase construction, increases the buffer capacity of oil cylinder.But because such oil cylinder two ends piston rod all needs to stretch out and regain, cause the pipeline of oil cylinder to use flexible pipe, can not fix, and need leave hose length when piston rod is stretched entirely, piston rod is suppressed back by force by flexible pipe after regaining, hose bending is also suspended in aerial.So, not only increase pipeline cost, and line loss is large, fragile.
Summary of the invention
The utility model is to provide a kind of rotary drilling rig hydraulic jack be arranged on by large for oil cylinder loculus oil inlet passage on piston rod and cylinder bottom, to solve the shortcoming and defect in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of rotary drilling rig hydraulic jack, comprise cylinder barrel, be arranged at cylinder barrel inner and cylinder barrel interior separation is become the cylinder bottom in two bar chambeies, be arranged at the small piston rod in bar chamber, cylinder barrel one end and little bar piston thereof, and the large piston rod be arranged in cylinder barrel the other end bar chamber and large bar piston thereof, the guide sleeve being provided with installation piston rod seal component towards outer end in two bar chambeies, it is characterized in that, described small piston rod is provided with rod chamber oil inlet passage, large piston rod is provided with rodless cavity oil inlet passage, cylinder bottom is provided with the rodless cavity communicating passage of connection two rodless cavities, and two rod chambers are communicated with steel pipe connection by rod chamber, described rod chamber oil inlet passage and rodless cavity oil inlet passage respectively perforate in greatly, in the body of rod of small piston rod, and the one end open of two oil inlet passages is in greatly, the periphery of small piston club head is also connected with high-pressure oil passage, the other end of its rod chamber oil inlet passage is communicated with corresponding rod chamber by the other opening being arranged at little bar piston rod chamber end face, the other end of rodless cavity oil inlet passage is communicated with corresponding rodless cavity by the opening being arranged at large piston rod end.
Beneficial effect: the utility model by being arranged in piston rod by oil inlet passage, and arranges rodless cavity communicating passage at cylinder bottom, greatly reduces the pipeline cost of oil cylinder, reduces line loss, improve the pipeline life-span.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-small piston rod, 2-cylinder barrel, 3-little bar piston, 4-rod chamber is communicated with steel pipe, 5-cylinder bottom, 6-large bar piston, 7-large piston rod, 8-rod chamber oil inlet passage, 9-rodless cavity oil inlet passage, 10-rodless cavity communicating passage, 11-rodless cavity, 12-rod chamber.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail as follows:
As shown in Figure 1, a kind of rotary drilling rig hydraulic jack, comprise cylinder barrel 2, be arranged at cylinder barrel inner and cylinder barrel interior separation is become the cylinder bottom 5 in two bar chambeies, be arranged at the small piston rod 1 in bar chamber, cylinder barrel one end and little bar piston 3 thereof, and the large piston rod 7 be arranged in cylinder barrel the other end bar chamber and large bar piston 6 thereof, the guide sleeve being provided with installation piston rod seal component towards outer end in two bar chambeies, it is characterized in that, described small piston rod is provided with rod chamber oil inlet passage 8, large piston rod is provided with rodless cavity oil inlet passage 9, cylinder bottom is provided with the rodless cavity communicating passage 10 of connection two rodless cavities 11, and two rod chambers 12 are communicated with by rod chamber connection steel pipe 4, described rod chamber oil inlet passage and rodless cavity oil inlet passage respectively perforate in greatly, in the body of rod of small piston rod, and the one end open of two oil inlet passages is in greatly, the periphery of small piston club head is also connected with high-pressure oil passage, the other end of its rod chamber oil inlet passage is communicated with corresponding rod chamber by the other opening being arranged at little bar piston rod chamber end face, the other end of rodless cavity oil inlet passage is communicated with corresponding rodless cavity by the opening being arranged at large piston rod end.
During the assembling of this oil cylinder, rod chamber oil inlet pipe is connected on the V1 mouth of small piston club head, rodless cavity oil inlet pipe is connected on the V2 mouth of large piston club head, because the bar head earrings of two-piston bar is all connected, V1 mouth and V2 mouth are all no longer with the flexible change relative position of piston rod, and oil pipe becomes and is connected.After system works, when high pressure oil is from V1 mouth oil-feed small piston rod, fluid flows through rod chamber oil inlet passage, flows to small piston rod rod chamber from the V3 mouth little bar piston, and be communicated with the large piston rod rod chamber of the other end by rod chamber connection steel pipe, drive small piston rod and large piston rod retraction.Otherwise, when high pressure oil is from V2 mouth oil-feed large piston rod, fluid then flows through rodless cavity oil inlet passage, flows to large piston rod rodless cavity from the V4 mouth bottom large piston rod, and be communicated with small piston rod rodless cavity by the rodless cavity communicating passage on cylinder bottom, drive small piston rod and large piston rod to stretch out.
More than show and describe technological maheup of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not 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 into claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a rotary drilling rig hydraulic jack, comprise cylinder barrel, be arranged at cylinder barrel inner and cylinder barrel interior separation is become the cylinder bottom in two bar chambeies, be arranged at the small piston rod in bar chamber, cylinder barrel one end and little bar piston thereof, and the large piston rod be arranged in cylinder barrel the other end bar chamber and large bar piston thereof, the guide sleeve being provided with installation piston rod seal component towards outer end in two bar chambeies, it is characterized in that, described small piston rod is provided with rod chamber oil inlet passage, large piston rod is provided with rodless cavity oil inlet passage, cylinder bottom is provided with the rodless cavity communicating passage of connection two rodless cavities, and two rod chambers are communicated with steel pipe connection by rod chamber, described rod chamber oil inlet passage and rodless cavity oil inlet passage respectively perforate in greatly, in the body of rod of small piston rod, and the one end open of two oil inlet passages is in greatly, the periphery of small piston club head is also connected with high-pressure oil passage, the other end of its rod chamber oil inlet passage is communicated with corresponding rod chamber by the other opening being arranged at little bar piston rod chamber end face, the other end of rodless cavity oil inlet passage is communicated with corresponding rodless cavity by the opening being arranged at large piston rod end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101435.5U CN204512056U (en) | 2015-02-12 | 2015-02-12 | A kind of rotary drilling rig hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101435.5U CN204512056U (en) | 2015-02-12 | 2015-02-12 | A kind of rotary drilling rig hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512056U true CN204512056U (en) | 2015-07-29 |
Family
ID=53710038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520101435.5U Expired - Fee Related CN204512056U (en) | 2015-02-12 | 2015-02-12 | A kind of rotary drilling rig hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512056U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485086A (en) * | 2016-01-14 | 2016-04-13 | 徐州奥博机械科技有限公司 | Multi-cavity fast hydraulic oil cylinder |
| CN107387484A (en) * | 2017-07-26 | 2017-11-24 | 徐州徐工液压件有限公司 | A kind of reducing switchable type bi-directional drive hydraulic cylinder |
| CN108006008A (en) * | 2017-12-26 | 2018-05-08 | 恒天九五重工有限公司 | Vertical mast floppy disk system and rotary drilling rig |
| CN113669326A (en) * | 2021-08-19 | 2021-11-19 | 安徽理工大学 | Double-piston-rod hydraulic servo oil cylinder applied to hydraulic drive legged robot |
-
2015
- 2015-02-12 CN CN201520101435.5U patent/CN204512056U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485086A (en) * | 2016-01-14 | 2016-04-13 | 徐州奥博机械科技有限公司 | Multi-cavity fast hydraulic oil cylinder |
| CN107387484A (en) * | 2017-07-26 | 2017-11-24 | 徐州徐工液压件有限公司 | A kind of reducing switchable type bi-directional drive hydraulic cylinder |
| CN107387484B (en) * | 2017-07-26 | 2019-06-04 | 徐州徐工液压件有限公司 | A kind of variable diameter switchable type bi-directional drive hydraulic cylinder |
| CN108006008A (en) * | 2017-12-26 | 2018-05-08 | 恒天九五重工有限公司 | Vertical mast floppy disk system and rotary drilling rig |
| CN113669326A (en) * | 2021-08-19 | 2021-11-19 | 安徽理工大学 | Double-piston-rod hydraulic servo oil cylinder applied to hydraulic drive legged robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20190212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |