CN101886644A - Rotary oil cylinder - Google Patents

Rotary oil cylinder Download PDF

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Publication number
CN101886644A
CN101886644A CN2009100155124A CN200910015512A CN101886644A CN 101886644 A CN101886644 A CN 101886644A CN 2009100155124 A CN2009100155124 A CN 2009100155124A CN 200910015512 A CN200910015512 A CN 200910015512A CN 101886644 A CN101886644 A CN 101886644A
Authority
CN
China
Prior art keywords
piston
cylinder
cover
screw rod
oil cylinder
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.)
Pending
Application number
CN2009100155124A
Other languages
Chinese (zh)
Inventor
何芹
许腾
李丽
赵连防
刘文龙
李敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Jianzhu University
Original Assignee
Shandong Jianzhu University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Jianzhu University filed Critical Shandong Jianzhu University
Priority to CN2009100155124A priority Critical patent/CN101886644A/en
Publication of CN101886644A publication Critical patent/CN101886644A/en
Pending legal-status Critical Current

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Abstract

The invention provides a rotary oil cylinder and aims to overcome the defects of complex structure and the like in a hydraulic cylinder which can realize rotating movement. The oil cylinder comprises a cylinder block, an end cover, a screw rod, a piston, guide rods and a bearing, wherein the two ends of each guide rod are embedded into the end cover; the end cover is fixed to the cylinder block through a bolt; each guide rod can rotate around the axis of the guide rod but cannot perform movement with other degrees of freedom; two guide rods pass through the piston; and the outer surface of the end cover is in close fit with the inner surface of the cylinder block. When the end cover is fixed to the cylinder block, the screw rod is supported on the cylinder block through a bearing matched with the end cover, passes through the center of the piston and is in close fit with the piston through the screw thread. The rotary oil cylinder can convert linear movement into rotating movement through a spiral structure.

Description

A kind of rotating hydraulic cylinder
Technical field
The present invention relates to a kind of rotating hydraulic cylinder, is exactly a kind of hydraulic actuator with spinfunction specifically.
Background technique
Along with the extensive use of modern hydraulic technology, hydraulic actuator can be realized multiple multi-form motion, at the existing deficiencies such as hydraulic cylinder structure complexity that rotatablely move of can realizing, proposes rotating hydraulic cylinder a kind of simple in structure, easy to use.
Summary of the invention
In order to overcome the existing deficiencies such as hydraulic cylinder structure complexity that rotatablely move of can realizing, the invention provides a kind of novel rotating hydraulic cylinder.
The present invention realizes by the following technical solutions: a kind of rotating hydraulic cylinder, form by cylinder body, end cap, screw rod, piston, guide rod, bearing.In the present invention, the guide rod two ends embed in the end cap, and end cap is by being bolted on the cylinder body, and guide rod can not produce the motion of other degrees of freedom except producing around self rotational.Two guide rod symmetric arrangement are passed piston, and outer surface of piston and inner surface of cylinder block closely cooperate.When end cap was fixed on the cylinder body, screw rod was by being engaged in bearings on the end cap on cylinder body, and screw rod passes the piston center, closely cooperated by self screw thread and piston.When piston when the effect lower edge of hydraulic coupling screw rod direction is moved because guide rod is fixed on the cylinder body, piston can not rotate, and rotatablely moves so screw rod produces, thereby realizes the spinfunction of oil cylinder.
The present invention utilizes helix structure that straight line motion is transformed the characteristic that rotatablely moves, and by the pressure of liquid, has realized the function that rotatablely moves of oil cylinder simply, efficiently.
Description of drawings
Fig. 1 is a main sectional view of the present invention.
Among the figure, 1. oilhole, 2. cylinder body, 3. oilhole, 4. end cap, 5. bearing, 6. screw rod, 7. piston, 8. guide rod
Embodiment
Guide rod 8 two ends embed in the end cap 4 among the figure, and end cap is by being bolted on the cylinder body 2, and guide rod can not produce the motion of other degrees of freedom except producing around self rotational.Two guide rods pass piston 7, and outer surface of piston and inner surface of cylinder block closely cooperate.When end cap was fixed on the cylinder body, screw rod 6 was supported on the cylinder body by the bearing 5 that fits snugly on the end cap, and screw rod passes the piston center, closely cooperated by self screw thread and piston internal surface, had formed the airtight space of oil cylinder.As shown in the figure, when fluid enters in the cylinder body on the piston from hydraulic fluid port 3, piston moves in the effect lower edge of hydraulic coupling screw rod direction, because guide rod is fixed, thereby screw rod will produce and be rotated in the forward motion, when fluid was in hydraulic fluid port 1 enters the piston lower cylinder body, piston was in the motion of the effect lower edge of hydraulic coupling screw rod, thereby screw rod will produce the counterrotating campaign.This just makes oil cylinder can realize the function of two-way rotation.

Claims (2)

1. a rotating hydraulic cylinder is made up of cylinder body, end cap, screw rod, piston, guide rod, bearing, it is characterized in that, two guide rod symmetric arrangement are passed piston, and two ends embed in the end cap.
2. oil cylinder according to claim 1 is characterized in that, screw rod is by being engaged in bearings on the end cap on cylinder body, and screw rod passes the piston center, closely cooperates by self screw thread and piston.
CN2009100155124A 2009-05-13 2009-05-13 Rotary oil cylinder Pending CN101886644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100155124A CN101886644A (en) 2009-05-13 2009-05-13 Rotary oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100155124A CN101886644A (en) 2009-05-13 2009-05-13 Rotary oil cylinder

Publications (1)

Publication Number Publication Date
CN101886644A true CN101886644A (en) 2010-11-17

Family

ID=43072688

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100155124A Pending CN101886644A (en) 2009-05-13 2009-05-13 Rotary oil cylinder

Country Status (1)

Country Link
CN (1) CN101886644A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102042281A (en) * 2011-01-11 2011-05-04 浙江大学 Oil cylinder of static pressure vibration exciter
CN102094869A (en) * 2011-03-04 2011-06-15 江苏科技大学 Two-degree-of-freedom hydraulic oil cylinder
CN104196812A (en) * 2014-08-06 2014-12-10 淮海工学院 Air and liquid linkage spiral rotation cylinder
CN105443498A (en) * 2015-12-30 2016-03-30 山东科技大学 Integrated hydraulic cylinder with extension and swing functions and application thereof
CN107756433A (en) * 2016-08-18 2018-03-06 大连精维液压技术有限公司 A kind of robot and its high pulling torque rotary type joint power device
CN107761797A (en) * 2016-08-18 2018-03-06 大连精维液压技术有限公司 A kind of excavator and its high pulling torque rotary type joint power device
CN111365319A (en) * 2020-03-26 2020-07-03 燕山大学 Novel hydraulic cylinder for hydraulic bulging

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102042281A (en) * 2011-01-11 2011-05-04 浙江大学 Oil cylinder of static pressure vibration exciter
CN102042281B (en) * 2011-01-11 2012-12-12 浙江大学 Oil cylinder of static pressure vibration exciter
CN102094869A (en) * 2011-03-04 2011-06-15 江苏科技大学 Two-degree-of-freedom hydraulic oil cylinder
CN104196812A (en) * 2014-08-06 2014-12-10 淮海工学院 Air and liquid linkage spiral rotation cylinder
CN105443498A (en) * 2015-12-30 2016-03-30 山东科技大学 Integrated hydraulic cylinder with extension and swing functions and application thereof
CN105443498B (en) * 2015-12-30 2017-11-21 山东科技大学 It is a kind of that there is flexible and oscillating function Integral hydraulic cylinder and its application
CN107756433A (en) * 2016-08-18 2018-03-06 大连精维液压技术有限公司 A kind of robot and its high pulling torque rotary type joint power device
CN107761797A (en) * 2016-08-18 2018-03-06 大连精维液压技术有限公司 A kind of excavator and its high pulling torque rotary type joint power device
CN111365319A (en) * 2020-03-26 2020-07-03 燕山大学 Novel hydraulic cylinder for hydraulic bulging
CN111365319B (en) * 2020-03-26 2021-02-26 燕山大学 Novel hydraulic cylinder for hydraulic bulging

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20101117