CN208778380U - A kind of composite hydraulic cylinder structure for hydraulic pumping unit - Google Patents

A kind of composite hydraulic cylinder structure for hydraulic pumping unit Download PDF

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Publication number
CN208778380U
CN208778380U CN201820651467.6U CN201820651467U CN208778380U CN 208778380 U CN208778380 U CN 208778380U CN 201820651467 U CN201820651467 U CN 201820651467U CN 208778380 U CN208778380 U CN 208778380U
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China
Prior art keywords
cylinder
piston rod
cap
piston
hydraulic
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Active
Application number
CN201820651467.6U
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Chinese (zh)
Inventor
贾帅杰
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Shanghai Dazhong Hydraulic Technology Co Ltd
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Shanghai Dazhong Hydraulic Technology Co Ltd
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Priority to CN201820651467.6U priority Critical patent/CN208778380U/en
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Abstract

The utility model provides a kind of composite hydraulic cylinder structure for hydraulic pumping unit, includes cylinder bottom, cylinder bottom connecting flange, cylinder barrel, plunger, piston, cylinder cap, piston rod, piston rod end cap, piston rod flange;The cylinder bottom is hydraulic cylinder bottom round seat structure;It is provided with cylinder bottom connecting flange at the top of the cylinder bottom, which is connected between cylinder bottom and cylinder barrel;The cylinder barrel is hydraulic cylinder hollow circuit cylinder outer shell wall construction;The plunger is the piston structure for being mounted on center between cylinder barrel, and the plunger is outer to be equipped with piston between inner wall of cylinder;It is installed with cylinder cap at the top of the cylinder barrel, uses flanged joint between the cylinder cap and cylinder barrel;The piston is equipped with circular groove inside cylinder barrel top position, piston rod is installed in the slot, piston rod is through cylinder cap out;The piston rod end is connected with piston rod end cap, and piston rod flanged joint is used between the piston rod end cap and piston rod.

Description

A kind of composite hydraulic cylinder structure for hydraulic pumping unit
Technical field
The utility model relates to mining machinery technical field more particularly to a kind of composite hydraulic cylinders for hydraulic pumping unit Structure.
Background technique
Petroleum is a most important Xiang Ziyuan in China's mine products resource, and oilfield exploitation needs to use large-scale oil production machine Tool.Currently, beam-pumping unit is to have the main force of bar oil recovery machiner in China's oil field operation, but with oilfield exploitation Continue, beam pumping unit exposes power consumption height, stroke jig frequency adjusts difficulty, is not suitable with the problems such as thickened oil recovery.Wherein, hydraulic Cylinder is a most important ring.
Utility model content
The purpose of this utility model is that in view of the drawbacks of the prior art and insufficient, provide a kind of for hydraulic pumping unit Composite hydraulic cylinder structure, the structure have good leakproofness and running stability, meet the requirement of pumping unit mechanical action, and tie Structure is simple, easy to make.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: complex liquid for hydraulic pumping unit Press cylinder device includes cylinder bottom, cylinder bottom connecting flange, cylinder barrel, plunger, piston, cylinder cap, piston rod, piston rod end cap, piston rod Flange;The cylinder bottom is hydraulic cylinder bottom round seat structure;It is provided with cylinder bottom connecting flange at the top of the cylinder bottom, the cylinder bottom connection method Orchid is connected between cylinder bottom and cylinder barrel;The cylinder barrel is hydraulic cylinder hollow circuit cylinder outer shell wall construction;The plunger is to be mounted on cylinder The piston structure of center between cylinder, the plunger is outer to be equipped with piston between inner wall of cylinder;It is installed at the top of the cylinder barrel Cylinder cap uses flanged joint between the cylinder cap and cylinder barrel;The piston is equipped with circular groove, installing in the slot inside cylinder barrel top position There is piston rod, piston rod is through cylinder cap out;The piston rod end is connected with piston rod end cap, the piston rod end cap and piston rod Between use piston rod flanged joint.
Preferably, gap is equipped with containment member between the piston and plunger.
Preferably, gap is equipped with containment member between the piston and cylinder barrel.
The beneficial effects of the utility model are: the structure has good leakproofness and running stability, meet pumping unit Mechanical action requirement, and structure is simple, it is easy to make.
Detailed description of the invention
Attached drawing described herein is to be used to provide a further understanding of the present invention, and constitutes one of the application Point, but do not constitute the restriction to the utility model.
Fig. 1 is hydraulic cylinder structure schematic diagram.
Wherein: 1 is cylinder bottom, and 2 be cylinder bottom connecting flange, and 3 be cylinder barrel, and 4 be plunger, and 5 be piston, and 6 be cylinder cap, and 7 be piston Bar, 8 be piston rod end cap, and 9 be piston rod flange.
Specific embodiment
In conjunction with attached drawing, the utility model is described in further detail.
As shown, a kind of composite hydraulic cylinder structure for hydraulic pumping unit, includes cylinder bottom 1, cylinder bottom connecting flange 2, cylinder barrel 3, plunger 4, piston 5, cylinder cap 6, piston rod 7, piston rod end cap 8, piston rod flange 9;The cylinder bottom 1 is cylinder bottom Portion's round seat structure;It is provided with cylinder bottom connecting flange 2 at the top of the cylinder bottom 1, which is connected to cylinder bottom 1 and cylinder barrel 3 Between;The cylinder barrel 3 is hydraulic cylinder hollow circuit cylinder outer shell wall construction;The plunger 4 is to be mounted on center between cylinder barrel 3 Piston structure, the plunger 4 is outer to be equipped with piston 5 between 3 inner wall of cylinder barrel;It is installed with cylinder cap 6 at the top of the cylinder barrel 3, the cylinder cap 6 Flanged joint is used between cylinder barrel 3;The piston 5 is equipped with circular groove inside 3 top position of cylinder barrel, is installed with piston rod in the slot 7, piston rod 7 is through cylinder cap 6 out;7 end of piston rod is connected with piston rod end cap 8, the piston rod end cap 8 and piston rod 7 Between with piston rod flange 9 connect.
When it is implemented, gap is equipped with containment member between the piston 5 and plunger 4.
When it is implemented, gap is equipped with containment member between the piston 5 and cylinder barrel 3.

Claims (3)

1. a kind of composite hydraulic cylinder structure for hydraulic pumping unit, it is characterised in that: include cylinder bottom, cylinder bottom connecting flange, Cylinder barrel, plunger, piston, cylinder cap, piston rod, piston rod end cap, piston rod flange;The cylinder bottom is hydraulic cylinder bottom round seat knot Structure;It is provided with cylinder bottom connecting flange at the top of the cylinder bottom, which is connected between cylinder bottom and cylinder barrel;The cylinder barrel For hydraulic cylinder hollow circuit cylinder outer shell wall construction;The plunger is the piston structure for being mounted on center between cylinder barrel, the plunger Piston is installed between inner wall of cylinder outside;It is installed with cylinder cap at the top of the cylinder barrel, uses flanged joint between the cylinder cap and cylinder barrel; The piston is equipped with circular groove inside cylinder barrel top position, piston rod is installed in the slot, piston rod is through cylinder cap out;The work Stopper rod end is connected with piston rod end cap, and piston rod flanged joint is used between the piston rod end cap and piston rod.
2. a kind of composite hydraulic cylinder structure for hydraulic pumping unit according to claim 1, it is characterised in that: the work Gap is equipped with containment member between plug and plunger.
3. a kind of composite hydraulic cylinder structure for hydraulic pumping unit according to claim 1, it is characterised in that: the work Gap is equipped with containment member between plug and cylinder barrel.
CN201820651467.6U 2018-05-03 2018-05-03 A kind of composite hydraulic cylinder structure for hydraulic pumping unit Active CN208778380U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820651467.6U CN208778380U (en) 2018-05-03 2018-05-03 A kind of composite hydraulic cylinder structure for hydraulic pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820651467.6U CN208778380U (en) 2018-05-03 2018-05-03 A kind of composite hydraulic cylinder structure for hydraulic pumping unit

Publications (1)

Publication Number Publication Date
CN208778380U true CN208778380U (en) 2019-04-23

Family

ID=66147858

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820651467.6U Active CN208778380U (en) 2018-05-03 2018-05-03 A kind of composite hydraulic cylinder structure for hydraulic pumping unit

Country Status (1)

Country Link
CN (1) CN208778380U (en)

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