CN110500337A - Hydraulic cylinder type telescopic oil tube - Google Patents
Hydraulic cylinder type telescopic oil tube Download PDFInfo
- Publication number
- CN110500337A CN110500337A CN201910463946.4A CN201910463946A CN110500337A CN 110500337 A CN110500337 A CN 110500337A CN 201910463946 A CN201910463946 A CN 201910463946A CN 110500337 A CN110500337 A CN 110500337A
- Authority
- CN
- China
- Prior art keywords
- oil tube
- cylinder
- piston rod
- oilhole
- inner oil
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The present invention relates to technical field of hydraulic equipment, more particularly to a kind of hydraulic cylinder type telescopic oil tube, telescopic oil tube one end is fixed, the other end and motion platform are connected, fixing end port connects oil sources, mobile terminal port connects and uses oily component on motion platform, then in motion platform motion process, oil connection position with oily component relative to being kept fixed on platform, motion platform fuel feeding is realized without hose, hose movement can be saved and need reserved bending space in the process, increase system stiffness, hose in motion process is avoided to bend bring fatigue aging problem.
Description
Technical field
The present invention relates to technical field of hydraulic equipment more particularly to a kind of hydraulic cylinder type telescopic oil tubes.
Background technique
Existing connection moving component and the oil pipe of fixation member are mostly hose, in moving component motion process, hose meeting
Different degrees of bending is generated with the distance change between moving component and fixation member, during design and construction, is needed
Enough spaces are left for the deformation of hose；Simultaneously as hose is often bent, it is easy to happen fatigue damage, to influence
The operation of system.
Therefore, for the demand, the scalable oil pipe that a kind of reserved space is small in size, fatigue life is long is designed, for
The reduction of hydraulic system volume, the increase of reliability, raising system stability is of great significance and engineering application value.
Summary of the invention
The technical problem to be solved by the present invention is in order to solve existing motion platform fuel system occupied space volume it is big,
Fatigue life short problem, the present invention provide a kind of hydraulic cylinder type telescopic oil tube.
The technical solution adopted by the present invention to solve the technical problems is: a kind of hydraulic cylinder type telescopic oil tube, a kind of hydraulic
Cylinder formula telescopic oil tube, including top end cover, cylinder barrel, hollow piston rod, cylinder inner oil tube, piston, bottom head covers and oil equalizing pipe road, top
Portion's end cap and bottom head covers are respectively fixedly disposed on the rear and front end of cylinder barrel, and bottom head covers are cylindrical-shaped structure, bottom head covers
Open up a blind hole along axis position on inner face, the periphery of bottom head covers offers fuel feed hole B and bottom oilhole, fuel feed hole B and
Bottom oilhole is interconnected with blind hole, offers top oilhole on the periphery of top end cover, top oilhole and bottom oilhole it
Between be connected by oil equalizing pipe road, cylinder inner oil tube is located in cylinder barrel, and the bottom of cylinder inner oil tube is fixedly connected with bottom head covers, in cylinder
The bottom of oil pipe is located at blind hole periphery, and is connected inside cylinder inner oil tube with blind hole, and hollow piston rod and piston are sleeved on cylinder
On inner oil tube, and the front end of hollow piston rod is pierced by top end cover, and hydraulic fluid port A, piston are offered on the front end face of hollow piston rod
It is fixedly connected with the rear end of hollow piston rod, is discharge chamber between piston and bottom head covers, is opened up on cylinder barrel close to bottom position
There is the gas vent being connected with discharge chamber, is working chamber b between piston and top end cover, top oilhole is connected with working chamber b,
It is connected inside the inside of hollow piston rod and cylinder inner oil tube, inside the inside of hollow piston rod and cylinder inner oil tube and in blind hole
Portion forms working chamber a.
Cylinder inner oil tube cross section outer circle area is equal to the cylinder barrel inner circle and hollow piston rod inner circle institute clamp ring
Shape area.
The cylinder inner oil tube length is equal to the cylinder barrel length.
The invention has the advantages that hydraulic cylinder type telescopic oil tube of the invention, telescopic oil tube one end are fixed, the other end with
Motion platform is connected, and fixing end port connects oil sources, and mobile terminal port connects and uses oily component on motion platform, then flat in movement
In platform motion process, oil connection position being kept fixed relative on platform with oily component, realize motion platform fuel feeding without
Hose can save hose movement and need reserved bending space in the process, increase system stiffness, avoid hose in motion process
Bend bring fatigue aging problem.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of present hydraulic cylinder formula telescopic oil tube.
Fig. 2 is the structural schematic diagram of present hydraulic cylinder formula telescopic oil tube bottom head covers；
Fig. 3 is piston rod construction schematic diagram.
In figure: 1, top end cover, 11, top oilhole, 2, cylinder barrel, 21, gas vent, 3, hollow piston rod, 31, hydraulic fluid port A, 4,
Cylinder inner oil tube, 5, piston, 6, bottom head covers, 61, blind hole, 62, fuel feed hole B, 63, bottom oilhole, 7, oil equalizing pipe road, 8, exhaust
Chamber, 9, working chamber b, 10, working chamber a.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1-3, be optimum embodiment of the present invention, a kind of hydraulic cylinder type telescopic oil tube, including top end cover 1, cylinder
Cylinder 2, hollow piston rod 3, cylinder inner oil tube 4, piston 5, bottom head covers 6 and oil equalizing pipe road 7, top end cover 1 and bottom head covers 6 are distinguished
It is fixed on the rear and front end of cylinder barrel 2, bottom head covers 6 are cylindrical-shaped structure, along axis position on 6 inner face of bottom head covers
A blind hole 61 is opened up, the periphery of bottom head covers 6 offers fuel feed hole B62 and bottom oilhole 63, fuel feed hole B62 and bottom oilhole 63
Be interconnected with blind hole 61, offer top oilhole 11 on the periphery of top end cover 1, top oilhole 11 and bottom oilhole 63 it
Between be connected by oil equalizing pipe road 7, cylinder inner oil tube 4 is located in cylinder barrel 2, the bottom of cylinder inner oil tube 4 and the fixed company of bottom head covers 6
It connects, the bottom of cylinder inner oil tube 4 is located at 61 periphery of blind hole, and 4 inside of cylinder inner oil tube is connected with blind hole 61,3 He of hollow piston rod
Piston 5 is sleeved on cylinder inner oil tube 4, and the front end of hollow piston rod 3 is pierced by top end cover 1, the front end face of hollow piston rod 3
On offer hydraulic fluid port A31, piston 5 is fixedly connected with the rear end of hollow piston rod 3, between piston 5 and bottom head covers 6 be discharge chamber
8, the gas vent 21 being connected with discharge chamber 8 is offered close to bottom position on cylinder barrel 2, is work between piston 5 and top end cover 1
Make chamber b9, top oilhole 11 is connected with working chamber b9, is connected inside the inside of hollow piston rod 3 and cylinder inner oil tube 4, hollow
Working chamber a10 is formed inside the inside of piston rod 3 and 4 inside of cylinder inner oil tube and blind hole 61.Cylinder barrel 2, hollow piston rod 3 and cylinder
Inner oil tube 4 is coaxially disposed.
4 cross section outer circle area of cylinder inner oil tube is equal to annulus area folded by 3 inner circle of 2 inner circle of cylinder barrel and hollow piston rod.Cylinder
4 length of inner oil tube is equal to 2 length of cylinder barrel.
Working principle: fuel feed hole B62 oil inlet, hydraulic fluid port A31 is fuel-displaced, while the oil liquid process top oilhole 11 of fuel feed hole B62,
7 mouthfuls of oil equalizing pipe road enters in working chamber b9.When hollow piston rod 3 stretches out, piston 5 travels forward, and working chamber b9 becomes smaller, work
The oil liquid for making chamber b9 enters working chamber a10 by equal oil-piping layout 7, due to the effective active area and working chamber of working chamber b9
The effective active area design of a10 is equal, and (4 cross section outer circle area of cylinder inner oil tube is equal in 2 inner circle of cylinder barrel and hollow piston rod 3
The folded annulus area of circle), therefore the excessive oil liquid supplement of fuel feed hole B62 is not needed, the stretching of hollow piston rod 3 leads to working chamber
Flow required for a10 inner hollow volume increases.It is still fuel feed hole B62 oil inlet, hydraulic fluid port when hollow piston rod 3 retracts
A31 is fuel-displaced, and working chamber a10 volume reduces at this time, and working chamber b9 volume increases, since the two effective active area is equal, work
The volume oil liquid that is reduced by working chamber a10 of volume that chamber b9 increases supplements, and does not need additional flow.
Fuel feed hole B62 is fixed, and hydraulic fluid port A31 and the motion platform of the front end face of hollow piston rod 3 are solidly connected, fixing end oil inlet
Hole B62 connection oil sources, on the hydraulic fluid port A31 connection motion platform of mobile terminal with oily component, then moved reciprocatingly in motion platform
Cheng Zhong drives hollow piston rod 3 to move back and forth, and oil connection position is realized relative to being kept fixed on platform with oily component
Motion platform fuel feeding can be saved and need reserved bending space during hose movement, increase system stiffness, keep away without hose
Exempt from hose in motion process and bends bring fatigue aging problem.
Hydraulic fluid port A31 and fuel feed hole B62 connect mobile platform and fixed position oil circuit respectively, since centre is access, pressure oil
Oil liquid transmitting can be realized by telescopic oil tube.Since 4 cross section outer circle area of cylinder inner oil tube is equal to 2 inner circle of cylinder barrel and hollow work
Annulus area folded by 3 inner circle of stopper rod, thus in 5 moving process of piston, working chamber a10 volume change and working chamber b9 volume
Variable quantity is equal, and volume change is on the contrary, i.e. working chamber 10a and working chamber b9 total volume remain unchanged.Therefore the shifting of piston 5
It is dynamic to have any impact to downstream flow.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (3)
1. a kind of hydraulic cylinder type telescopic oil tube, it is characterised in that: including top end cover (1), cylinder barrel (2), hollow piston rod (3),
Cylinder inner oil tube (4), piston (5), bottom head covers (6) and oil equalizing pipe road (7),
Top end cover (1) and bottom head covers (6) are respectively fixedly disposed on the rear and front end of cylinder barrel (2),
Bottom head covers (6) are cylindrical-shaped structure, open up a blind hole (61), bottom along axis position on bottom head covers (6) inner face
The periphery of end cap (6) offers fuel feed hole B (62) and bottom oilhole (63), fuel feed hole B (62) and bottom oilhole (63) with it is blind
Hole (61) is interconnected,
Top oilhole (11) is offered on the periphery of top end cover (1), is passed through between top oilhole (11) and bottom oilhole (63)
Oil equalizing pipe road (7) is connected,
Cylinder inner oil tube (4) is located in cylinder barrel (2), and the bottom of cylinder inner oil tube (4) is fixedly connected with bottom head covers (6), cylinder inner oil tube
(4) bottom is located at blind hole (61) periphery, and is connected inside cylinder inner oil tube (4) with blind hole (61),
Hollow piston rod (3) and piston (5) are sleeved on cylinder inner oil tube (4), and the front end of hollow piston rod (3) is pierced by top
End cap (1) offers hydraulic fluid port A (31) on the front end face of hollow piston rod (3), and the rear end of piston (5) and hollow piston rod (3) is solid
Fixed connection is discharge chamber (8) to offer and be vented close to bottom position on cylinder barrel (2) between piston (5) and bottom head covers (6)
The gas vent (21) that chamber (8) is connected,
It is working chamber b (9) between piston (5) and top end cover (1), top oilhole (11) is connected with working chamber b (9), hollow
Be connected inside the inside of piston rod (3) and cylinder inner oil tube (4), the inside of hollow piston rod (3) and cylinder inner oil tube (4) it is internal with
And working chamber a (10) are formed inside blind hole (61).
2. hydraulic cylinder type telescopic oil tube as described in claim 1, it is characterised in that: cylinder inner oil tube (4) cross section outer circle
Area is equal to annulus area folded by the cylinder barrel (2) inner circle and the hollow piston rod (3) inner circle.
3. hydraulic cylinder type telescopic oil tube as described in claim 1, it is characterised in that: cylinder inner oil tube (4) length is equal to institute
State cylinder barrel (2) length.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337530 | 2019-04-25 | ||
| CN2019103375308 | 2019-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110500337A true CN110500337A (en) | 2019-11-26 |
| CN110500337B CN110500337B (en) | 2024-04-16 |
Family
ID=68585718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910463946.4A Active CN110500337B (en) | 2019-04-25 | 2019-05-30 | Hydraulic cylinder type telescopic oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110500337B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526960A (en) * | 2003-09-25 | 2004-09-08 | 浙江大学 | Single rod equal area double acting hydraulic cylinder capable of balancing weight |
| CN200982331Y (en) * | 2006-10-09 | 2007-11-28 | 国营第三八八厂 | Sandwiched cylinder wall two-stage double-function gudgeon oil-intake sea water resistant hydraulic cylinder |
| CN201547054U (en) * | 2009-11-13 | 2010-08-11 | 福建三钢闽光股份有限公司 | Hydraulic cylinder capable of removing oil stains |
| CN102913507A (en) * | 2012-11-16 | 2013-02-06 | 江阴市洪腾机械有限公司 | Hydraulic cylinder with hollow piston rod |
| CN103216484A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Lower crossbeam inner piston cylinder structure with oil tank arranged on upper crossbeam hydraulic machine |
| CN106438566A (en) * | 2016-11-23 | 2017-02-22 | 韶关市博仕乐液压机械制造有限公司 | Hydrocylinder with built-in circular oil-way |
| JP2017078507A (en) * | 2015-10-19 | 2017-04-27 | 株式会社ユーテック | Single rod type double-acting hydraulic cylinder |
| CN109595217A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | The oil cylinder of asphalt channel built in a kind of band |
| CN210509799U (en) * | 2019-04-25 | 2020-05-12 | 江苏恒盈动力科技有限公司 | Hydraulic cylinder type telescopic oil pipe |
-
2019
- 2019-05-30 CN CN201910463946.4A patent/CN110500337B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526960A (en) * | 2003-09-25 | 2004-09-08 | 浙江大学 | Single rod equal area double acting hydraulic cylinder capable of balancing weight |
| CN200982331Y (en) * | 2006-10-09 | 2007-11-28 | 国营第三八八厂 | Sandwiched cylinder wall two-stage double-function gudgeon oil-intake sea water resistant hydraulic cylinder |
| CN201547054U (en) * | 2009-11-13 | 2010-08-11 | 福建三钢闽光股份有限公司 | Hydraulic cylinder capable of removing oil stains |
| CN102913507A (en) * | 2012-11-16 | 2013-02-06 | 江阴市洪腾机械有限公司 | Hydraulic cylinder with hollow piston rod |
| CN103216484A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Lower crossbeam inner piston cylinder structure with oil tank arranged on upper crossbeam hydraulic machine |
| JP2017078507A (en) * | 2015-10-19 | 2017-04-27 | 株式会社ユーテック | Single rod type double-acting hydraulic cylinder |
| CN106438566A (en) * | 2016-11-23 | 2017-02-22 | 韶关市博仕乐液压机械制造有限公司 | Hydrocylinder with built-in circular oil-way |
| CN109595217A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | The oil cylinder of asphalt channel built in a kind of band |
| CN210509799U (en) * | 2019-04-25 | 2020-05-12 | 江苏恒盈动力科技有限公司 | Hydraulic cylinder type telescopic oil pipe |
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| Publication number | Publication date |
|---|---|
| CN110500337B (en) | 2024-04-16 |
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