CN106438566A - Hydrocylinder with built-in circular oil-way - Google Patents
Hydrocylinder with built-in circular oil-way Download PDFInfo
- Publication number
- CN106438566A CN106438566A CN201611046879.9A CN201611046879A CN106438566A CN 106438566 A CN106438566 A CN 106438566A CN 201611046879 A CN201611046879 A CN 201611046879A CN 106438566 A CN106438566 A CN 106438566A
- Authority
- CN
- China
- Prior art keywords
- oil
- piston rod
- built
- piston
- inner chamber
- 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
Links
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
-
- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydrocylinder with a built-in circular oil-way. The hydrocylinder with the built-in circular oil-way comprises a fixed cylinder barrel element and a movable cylinder barrel element movably arranged in an inner cavity of the fixed cylinder barrel element, wherein the fixed cylinder barrel element comprises a fixed cylinder barrel and a piston rod arranged in the center of the inner cavity of the fixed cylinder barrel in a parallel mode, the piston rod and the fixed cylinder barrel are connected and fixed in the bottoms by a flange, the inner wall of the fixed cylinder barrel and the outer wall of the piston rod form an annular hollow cavity with a closed bottom; the movable cylinder barrel element inserts into the annular hollow cavity from the top and can conduct up and down piston motions; a first oil-way and a second oil-way are vertically arranged side by side in the rod body of the piston rod, an upper end of the first oil-way cross breaks and penetrates through the side wall of the piston rod, and the second oil-way vertically penetrates through the top surface of the piston rod. According to the hydrocylinder with the built-in circular oil-way, the first oil-way and the second oil-way are arranged inside the hydrocylinder with the built-in circular oil-way, which makes hydraulic oil cycle inside the hydrocylinder so as to effectively avoid that the hydrocylinder can not supply oil when an oil tube is damaged due to external crash. The hydrocylinder with the built-in circular oil-way has a reliable and stable performance.
Description
Technical field
The present invention relates to a kind of oil cylinder technology, and in particular to a kind of hydraulic jack of built-in circulating oil path.
Background technology
Hydraulic jack is to be changed into mechanical energy, can do the hydraulic actuator of straight reciprocating motion hydraulic energy.It ties
Structure is simple, reliable operation.When being realized moving back and forth with it, deceleration device can be removed from, and without drive gap, motion is flat
Surely, therefore it is used widely in the hydraulic system of various machineries.
Common hydraulic jack mainly includes cylinder barrel and piston component, and the part for having piston rod of cylinder barrel internal cavity is for having
Bar inner chamber, the part without piston rod of cylinder barrel internal cavity are no bar inner chamber, by outside oil circuit successively have bar inner chamber and
No in bar inner chamber, fuel feeding can promote piston rod linear reciprocating motion with just draining the oil.
The hydraulic jack that applies in most of field to hydraulic jack fuel feeding and is drained the oil all by the way of the outside oil circuit,
The hydraulic jack principle of this outside oil circuit is simple, easily realizes, and production cost is relatively low, but oil circuit is arranged on cylinder body
Oil pipe is easily damaged in outside due to collision, so cause hydraulic jack cannot fuel feeding, the hydraulic jack of this outside fuel feeding
Energy and reliability are relatively poor.
Content of the invention
It is an object of the invention to overcoming shortcoming of the prior art and deficiency, a kind of stablizing for built-in circulating oil path is provided
The property preferable hydraulic jack of reliability.
The present invention is achieved by the following technical solutions：A kind of hydraulic jack of built-in circulating oil path, including：Stationary cylinder
Cartridge module and can in the stator bore component inner chamber piston movement movable cylinder assembly；The stator bore component, bag
Including stator bore and mesotropic piston rod in stator bore, the stator bore and piston rod bottom is arranged in an axially parallel mode along which
End is connected with flange, and the piston rod top arranges piston head greater diameter than diameter of piston rod, in piston club shaft
The first oil circuit and the second oil circuit is arranged side by side axially along which, first oil circuit is connected with the second oil circuit bottom, the first oil circuit
Top is being pressed close to the cross break of piston head bottom end and is running through the body of rod of piston rod, the second oil circuit top through the piston head simultaneously
It is communicated to the inner chamber of the activity cylinder assembly；The activity cylinder assembly, which is fixed from the top insertion of stator bore component
The inner chamber of cylinder assembly simultaneously entangles the piston head and piston rod, and the activity cylinder assembly includes movable cylinder barrel and is arranged on work
The interior oil cut-off plug of moveable cylinder bottom, the activity cylinder barrel entangles the piston head, the interior oil cut-off plug sleeve residence and states piston
Bar.
Further, the bottom of the piston rod connects a bidirectional hydraulic lock, arranges two liquid inside the bidirectional hydraulic lock
Pressure lock hydraulic fluid port is respectively communicated with the bottom of the first oil circuit and the second oil circuit.
Further, the piston rod upper end is provided with first hydraulic fluid port for extending transversely through side wall, and first hydraulic fluid port is pressed close to
The piston head bottom surface and connect with the first oil circuit top；First oil circuit is connected from the side wall of piston rod by the first hydraulic fluid port
To outside the body of rod of piston rod；Second oil circuit is communicated to the body of rod of piston rod from the top surface of piston rod by the second hydraulic fluid port.
Further, a tack acoustic filter, the tack acoustic filter connection are set on the stator bore bottom end side wall
The inner chamber of stator bore.
Further, the piston head bore seal of the activity cylinder assembly is separated, the movable cylinder below piston head
The inner chamber of cartridge module is for there is bar inner chamber, and the inner chamber of movable cylinder assembly more than piston head is no bar inner chamber, first oil circuit
Bar inner chamber, the second oil circuit are communicated with through the second hydraulic fluid port connection no bar inner chamber through the first hydraulic fluid port.
Further, the top of the activity cylinder barrel connects universal connecting components.
Further, piston seal component is arranged with the piston head, and the piston seal component includes O sheathed successively
Shape circle, back-up ring, Glais ring and general plug envelope；The interior oil cut-off is arranged with interior oil seal component, the interior oil seal component beyond the Great Wall
Including dust ring sheathed successively, rod seal U-shaped circle, rod seal, support ring and O-ring.
Further, the stator bore top is arranged with closure assemblies, and the closure assemblies are included from bottom to up successively
The support set of setting, spacer, dust ring and gland；Through type pressure injection oil is additionally provided with the stator bore tip side wall
Cup, the through type forced filling oil cup crosses the barrel of the gland and stator bore.
Further, the hydraulic jack appearance mirror polish of the built-in circulating oil path and hard chrome is coated with, the thickness of coating of hard chrome is big
In 25um.
Compared to prior art, the invention has the beneficial effects as follows：
Built-in first oil circuit of the hydraulic jack and the second oil circuit, by bidirectional hydraulic lock control internal oil passages, make hydraulic oil
In oil cylinder inner loop, external impact can be prevented effectively from oil pipe is damaged, cause the hydraulic jack cannot fuel feeding；Multilamellar piston seal group
Part coordinates tight, ne-leakage oil；Hydraulic jack polishes and is coated with the hard chrome of wear resistant corrosion resistant, can drenching with rain, high temperature, low temperature, wet
Steady operation under the environment such as heat, solar radiation, sand dust, salt fog, mycete, dependable performance is stable.
In order to be able to the apparent understanding present invention, the preferably embodiment party of the present invention is illustrated below with reference to description of the drawings
Formula.
Description of the drawings
Fig. 1 is the structural representation of hydraulic jack of the present invention.
Fig. 2 is the cross section structure schematic diagram of hydraulic jack of the present invention.
Fig. 3 is the enlarged drawing of local A in Fig. 2.
Fig. 4 is that when in Fig. 2, movable cylinder assembly stretches out, oil circuit moves towards schematic diagram.
Fig. 5 is the enlarged drawing of Local C in Fig. 4.
Fig. 6 is the enlarged drawing of local D in Fig. 4.
Fig. 7 is that when in Fig. 2, movable cylinder assembly is retracted, oil circuit moves towards schematic diagram.
Fig. 8 is the enlarged drawing of Fig. 7 local E.
Specific embodiment
It is the structural representation of hydraulic jack of the present invention please refer to Fig. 1 to Fig. 8, Fig. 1, Fig. 2 is hydraulic oil of the present invention
The cross section structure schematic diagram of cylinder, Fig. 3 is the enlarged drawing of local A in Fig. 2, and Fig. 4 is that when in Fig. 2, movable cylinder assembly stretches out, oil circuit is walked
To schematic diagram, Fig. 5 is the enlarged drawing of Local C in Fig. 4, and Fig. 6 is the enlarged drawing of local D in Fig. 4, and Fig. 7 is movable cylinder barrel group in Fig. 2
When part is retracted, oil circuit moves towards schematic diagram, and Fig. 8 is the enlarged drawing of Fig. 7 local E.
See Fig. 1, the hydraulic jack 10 of a kind of built-in circulating oil path of the present invention, including a stator bore component 20 and and one
Can in 20 inner chamber of stator bore component piston movement movable cylinder assembly 30.10 appearance mirror polish of the hydraulic jack
And hard chrome is coated with, the thickness of coating of hard chrome is more than 25um.
See Fig. 2 to Fig. 3, the stator bore component 20 includes that a stator bore 21 and is arranged in an axially parallel mode in institute along which
Mesotropic piston rod 22 in stator bore 21 is stated, the piston rod 22 is connected with flange in bottom with stator bore 21,
The activity cylinder assembly 30 inserts the inner chamber of the stator bore 21 from the top of the stator bore 21 and entangles the work
Stopper rod 22.
21 top of the stator bore is arranged with a closure assemblies 21a, the closure assemblies 21a to be included from bottom to up successively
The support set 21a-1 of setting, spacer 21a-2, dust ring 21a-3 and gland 21a-4, gland 21a-4 is by the closure assemblies 21a
Compress and be fixed in 21 upper end inner chamber of stator bore.A through type pressure injection is additionally provided with 21 tip side wall of the stator bore
Lubricating cup 21b, through type forced filling oil cup 21b crosses the barrel of the gland 21a-4 and stator bore 21, for described solid
Determine the inner chamber injection lubricant of cylinder barrel 21.
One tack acoustic filter 21c, the tack acoustic filter 21c are set in 21 bottom sidewall of the stator bore and cross fixation
The side wall of cylinder barrel 21 connects the inner chamber of stator bore 21 so that 21 inner chamber of the stator bore is communicated with outer gas stream and reduces pressure
The flow noise of contracting air-flow.
22 top bolt of the piston rod is fixed a piston head 22a, is axially set side by side along which in the body of rod of piston rod 22
Put the first oil circuit 22b and the second oil circuit 22c, 22 upper end of the piston rod and a first hydraulic fluid port 22d for extending transversely through side wall be provided with,
The first hydraulic fluid port 22d is pressed close to the piston head 22a bottom surface and is connected with the first oil circuit 22b top；The top of the piston rod 22
Open up the second hydraulic fluid port 22e, the second hydraulic fluid port 22e on face to connect with the second oil circuit 22c top.The first oil circuit 22b passes through
First hydraulic fluid port 22d is communicated to the body of rod of piston rod 22 from 22 side wall of piston rod；The second oil circuit 22c is through the second hydraulic fluid port
22e is communicated to the body of rod of piston rod 22 from 22 top surface of piston rod.
The bottom of the piston rod 22 connects a bidirectional hydraulic lock 22g, two for being arranged on inside the bidirectional hydraulic lock 22g
Individual hydraulic lock hydraulic fluid port is connected with the bottom of the first oil circuit 22b and the second oil circuit 22c respectively.
The piston head 22a with diameter greater than the diameter of piston rod 22, sheathed piston seal component 22f on piston head 22a,
The piston seal component 22f include O-ring 22f-1 sheathed successively, back-up ring 22f-2, Glais ring 22f-3 and general plug envelope
22f-4.
The bore seal of the activity cylinder assembly 30 is separated by the piston head 22a, the movable cylinder of piston head 22a lower end
The inner chamber of cartridge module 30 is no bar inner chamber 31a for the inner chamber of the movable cylinder assembly 30 for having bar inner chamber 31b, piston head 22a upper end,
The first oil circuit 22b is communicated with bar inner chamber 31b, the second oil circuit 22c through the second hydraulic fluid port 22e connection no bar through the first hydraulic fluid port 22d
Inner chamber 31a.
The activity cylinder assembly 30 include a movable cylinder barrel 31 and one be fixed on the interior oil of 31 bottom of movable cylinder barrel every
Disconnected plug 32.Activity cylinder barrel 31 coupling is entangled piston head 22a, interior 32 coupling of oil cut-off plug and entangles the piston rod 22,
The interior oil cut-off plug 32 has bar inner chamber 31b to isolate with the bore seal of the stator bore 21 by described, in order to avoid have bar inner chamber
Hydraulic oil in 31b enters the inner chamber of stator bore 21.The top of the activity cylinder barrel 31 connects universal connecting components 33, described
Hydraulic jack 10 is connected by universal connecting components 33 with external impetus system.
Interior oil seal component is arranged with the interior oil cut-off plug 32, the interior oil seal component includes sheathed dust-proof successively
Circle, rod seal U-shaped circle, rod seal, support ring and O-ring etc..
See Fig. 4 to Fig. 8, the hydraulic jack 10 of the present invention operationally, the first internal oil circuit 22b and the second oil circuit 22c
In hydraulic oil flow direction be：
Movable cylinder assembly 30 from stator bore 21 stretch out when, outer gas stream through tack acoustic filter 21c flow into stator bore
21 inner chambers.Hydraulic oil successively from have bar inner chamber 31b flow through the first hydraulic fluid port 22d, the first oil circuit 22b, bidirectional hydraulic lock 22g,
Two oil circuit 22c, the second hydraulic fluid port 22e, eventually enter into no bar inner chamber 31a.
When movable cylinder assembly 30 is retracted in stator bore 21, internal gas flow flows out stationary cylinder through tack acoustic filter 21c
21 inner chambers of cylinder.Hydraulic oil flow through from no bar inner chamber 31a successively the second hydraulic fluid port 22e, the second oil circuit 22c, bidirectional hydraulic lock 22g,
First oil circuit 22b, the first hydraulic fluid port 22d, have eventually entered into bar inner chamber 31b.By controlling the closure lockable of bidirectional hydraulic lock 22g
Hydraulic jack 10, allows hydraulic jack 10 in packing state.
Above-mentioned embodiment is the invention is not limited in, if the various changes to the present invention or deformation are without departing from the present invention
Spirit and scope, if these are changed and within the scope of deformation belongs to claim and the equivalent technologies of the present invention, then this
Bright be also intended to comprising these change and deform.
Claims (10)
1. a kind of hydraulic jack of built-in circulating oil path, it is characterised in that include：Stator bore component and can be in the stationary cylinder
The movable cylinder assembly of piston movement in cartridge module inner chamber；
The stator bore component, is arranged in an axially parallel mode mesotropic piston in stator bore including stator bore and along which
Bar, the stator bore and piston rod bottom are connected, and the piston rod top is arranged greater diameter than diameter of piston rod
Axially the first oil circuit and the second oil circuit, first oil circuit and the second oil circuit are arranged side by side along which in piston head, piston club shaft
The cross break of piston head bottom end the body of rod through piston rod, second oil circuit are being pressed close in bottom connection, the top of the first oil circuit
Top is run through the piston head and is communicated to the inner chamber of the activity cylinder assembly；
The activity cylinder assembly, which inserts the inner chamber of stator bore component from the top of stator bore component and entangles the work
Chock plug and piston rod, the activity cylinder assembly includes movable cylinder barrel and is arranged on the interior oil cut-off plug of movable cylinder barrel bottom, institute
State movable cylinder barrel entangle the piston head, described interior oil cut-off plug sleeve residence state piston rod.
2. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 1, it is characterised in that：The bottom of the piston rod
Connect a bidirectional hydraulic lock, two hydraulic lock hydraulic fluid ports are set inside the bidirectional hydraulic lock and are respectively communicated with the first oil circuit and the second oil
The bottom on road.
3. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 1, it is characterised in that：The piston rod upper end sets
First hydraulic fluid port for extending transversely through side wall is equipped with, first hydraulic fluid port is pressed close to the piston head bottom surface and connected with the first oil circuit top
Logical；First oil circuit is communicated to the body of rod of piston rod from the side wall of piston rod by the first hydraulic fluid port；Second oil circuit leads to
Cross the second hydraulic fluid port to be communicated to the body of rod of piston rod from the top surface of piston rod.
4. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 1, it is characterised in that：The stator bore
One tack acoustic filter is set on bottom end side wall, and the tack acoustic filter connects the inner chamber of stator bore.
5. the hydraulic jack of a kind of built-in circulating oil path as described in claim 1, it is characterised in that：The piston head is institute
The bore seal for stating movable cylinder barrel separates, the inner chamber of movable cylinder barrel below piston head is have bar inner chamber, work more than piston head
The inner chamber of moveable cylinder component is no bar inner chamber, and first oil circuit is communicated with bar inner chamber, the second oil circuit through second through the first hydraulic fluid port
Hydraulic fluid port connection no bar inner chamber.
6. the hydraulic jack of a kind of built-in circulating oil path as described in claim 2 to 5, it is characterised in that：The activity cylinder
The top of cylinder connects universal connecting components.
7. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 6, it is characterised in that：Sheathed on the piston head
There is piston seal component, the piston seal component includes O-ring sheathed successively, back-up ring, Glais ring and general plug envelope；Described interior
Oil cut-off is arranged with interior oil seal component beyond the Great Wall, and the interior oil seal component includes dust ring sheathed successively, rod seal U-shaped
Circle, rod seal, support ring and O-ring.
8. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 7, it is characterised in that：The stator bore top
Closure assemblies are arranged with, the closure assemblies include support set, spacer, dust ring and the gland for setting gradually from bottom to up；
Be additionally provided with a through type forced filling oil cup on the stator bore tip side wall, the through type forced filling oil cup cross the gland and
The barrel of stator bore.
9. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 8, it is characterised in that：The stator bore and work
Stopper rod is connected with flange in bottom.
10. a kind of hydraulic jack of built-in circulating oil path as claimed in claim 9, it is characterised in that：The built-in circulating oil path
Hydraulic jack appearance mirror polish and be coated with hard chrome, the thickness of coating of hard chrome is more than 25um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046879.9A CN106438566A (en) | 2016-11-23 | 2016-11-23 | Hydrocylinder with built-in circular oil-way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046879.9A CN106438566A (en) | 2016-11-23 | 2016-11-23 | Hydrocylinder with built-in circular oil-way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438566A true CN106438566A (en) | 2017-02-22 |
Family
ID=58219399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611046879.9A Pending CN106438566A (en) | 2016-11-23 | 2016-11-23 | Hydrocylinder with built-in circular oil-way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500337A (en) * | 2019-04-25 | 2019-11-26 | 江苏恒盈动力科技有限公司 | Hydraulic cylinder type telescopic oil tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191856Y (en) * | 1994-03-03 | 1995-03-15 | 娄林 | Hydraulic jack with clasp nut type mechanical lock |
| JP2007308300A (en) * | 2006-05-17 | 2007-11-29 | Takeshi Shimizu | Composite pressurizing two-stage changeover jack |
| CN201843745U (en) * | 2010-10-21 | 2011-05-25 | 天津赛瑞机器设备有限公司 | High-pressure gas pump |
| CN202322195U (en) * | 2011-12-09 | 2012-07-11 | 韶关市博仕乐液压机械制造有限公司 | Stable jack oil cylinder |
| CN202704930U (en) * | 2012-07-24 | 2013-01-30 | 山东矿机集团股份有限公司 | High-thrust jack |
-
2016
- 2016-11-23 CN CN201611046879.9A patent/CN106438566A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191856Y (en) * | 1994-03-03 | 1995-03-15 | 娄林 | Hydraulic jack with clasp nut type mechanical lock |
| JP2007308300A (en) * | 2006-05-17 | 2007-11-29 | Takeshi Shimizu | Composite pressurizing two-stage changeover jack |
| CN201843745U (en) * | 2010-10-21 | 2011-05-25 | 天津赛瑞机器设备有限公司 | High-pressure gas pump |
| CN202322195U (en) * | 2011-12-09 | 2012-07-11 | 韶关市博仕乐液压机械制造有限公司 | Stable jack oil cylinder |
| CN202704930U (en) * | 2012-07-24 | 2013-01-30 | 山东矿机集团股份有限公司 | High-thrust jack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500337A (en) * | 2019-04-25 | 2019-11-26 | 江苏恒盈动力科技有限公司 | Hydraulic cylinder type telescopic oil tube |
| CN110500337B (en) * | 2019-04-25 | 2024-04-16 | 江苏恒盈动力科技有限公司 | Hydraulic cylinder type telescopic oil pipe |
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Application publication date: 20170222 |