CN110273889A - Empty van vehicle elevating ram - Google Patents
Empty van vehicle elevating ram Download PDFInfo
- Publication number
- CN110273889A CN110273889A CN201910608172.XA CN201910608172A CN110273889A CN 110273889 A CN110273889 A CN 110273889A CN 201910608172 A CN201910608172 A CN 201910608172A CN 110273889 A CN110273889 A CN 110273889A
- Authority
- CN
- China
- Prior art keywords
- guide part
- piston
- empty van
- piston rod
- elevating ram
- 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
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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
-
- 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
- F15B15/1447—Pistons; Piston to piston rod 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
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Abstract
The present invention provides a kind of empty van vehicle elevating ram, comprising: cylinder body；Piston rod, piston rod are movably located in installation cavity and one end along the axial direction of cylinder body and stretch out installation cavity, define in piston rod along its axially extending rod cavity；Piston component, piston component are located in installation cavity and are connected with the other end of piston rod, and the plunger shaft of and one end axially extending along its and rod cavity perforation is defined in piston component；First guide part, the first guide part are formed as annular element, and the first guide part is located in installation cavity and is set in one end of piston rod；Second guide part, the second guide part are formed as annular element, and the second guide part is located in installation cavity and neighbouring first guide sleeve is set on the piston rod；Fixing piece, fixing piece are formed as annular element, and at least part of fixing piece only supports the first guide part and cylinder body respectively and is connected with the outside wall surface of cylinder body.Empty van vehicle elevating ram according to an embodiment of the present invention is not only simple in structure, and saves raw material, and be easily installed and position.
Description
Technical field
The present invention relates to oil cylinder technical field more particularly to a kind of empty van vehicle elevating rams.
Background technique
Empty container stacking machine elevating ram specification used at present is almost cylinder diameter 125mm, bar diameter 110mm, operating pressure entirely
23MPa, jacking capacity is in 20T or so, the use demand of harbour facilities manufacturer as constructor unification.But in some cases
It needs to increase the jacking capacity of elevating ram, and then promotes the jacking capacity of whole trolley, but operating pressure cannot be increased again.This
The unique resolving ideas of sample is exactly to increase bar diameter, with the increase of bar diameter, it is necessary to redesign the structure of former empty van vehicle.
Summary of the invention
In view of this, the present invention provides a kind of empty van vehicle elevating ram, structure is simple, is easily installed.
The empty van vehicle elevating ram of embodiment according to a first aspect of the present invention, comprising: cylinder body defines edge in the cylinder body
Its axially extending and open at one end installation cavity；Piston rod, the piston rod are movably located at institute along the axial direction of the cylinder body
It states in installation cavity and the installation cavity is stretched out in one end, define in the piston rod along its axially extending rod cavity；Piston component,
The piston component is located in the installation cavity and is connected with the other end of the piston rod, defines edge in the piston component
The plunger shaft of its axially extending and one end and rod cavity perforation；First guide part, first guide part are formed as annular element,
First guide part is located in the installation cavity and is set in one end of the piston rod；Second guide part, described second leads
Be formed as annular element to part, second guide part is located in the installation cavity and is located at adjacent to first guide sleeve described
On piston rod；Fixing piece, the fixing piece are formed as annular element, and at least part of the fixing piece only supports described first respectively
Guide part and the cylinder body and it is connected with the outside wall surface of the cylinder body.
Empty van vehicle elevating ram according to an embodiment of the present invention, by the way that the first guide part, the second guide part to be arranged respectively
On the piston rod, and the first guide part is connected by fixing piece and cylinder body, the empty van vehicle elevating ram is not only simple in structure, saved
Raw material, and be easily installed and position.
Empty van elevating ram according to an embodiment of the present invention can also have following additional technical feature.
According to one embodiment of present invention, the inner wall of first guide part, which is spaced apart, sets there are two dynamic sealing slot,
Outside wall surface, which is spaced apart, to be set there are two static seal slot, the empty van vehicle elevating ram further include: two first seals, described in two
First seal is respectively provided in two dynamic sealing slots；Two second seals, two second seals are set respectively
In two static seal slots.
According to one embodiment of present invention, at least one is defined in first guide part radially to extend and connect
Lead to the oilhole of the first guide part inner wall and outside wall surface, each oilhole towards the first guide part inner wall one
End is respectively formed oil groove.
According to one embodiment of present invention, the inner wall of second guide part is defined along its axially extending installation
Slot, the empty van vehicle elevating ram further include: two axle sleeves, two axle sleeves are respectively provided in the mounting groove and are set in
On the piston rod.
According to one embodiment of present invention, inner wall of second guide part adjacent to first guide part one end is set
There is oil storage tank.
According to one embodiment of present invention, the oil storage tank and the peace are located on the inner wall of second guide part
Part between tankage is equipped with circlip groove, the empty van vehicle elevating ram further include: retaining ring, the retaining ring are located at the circlip groove
It is interior.
According to one embodiment of present invention, the outside wall surface of the piston rod other end is equipped with internal screw thread, the piston group
Part further include: piston only, define in the piston only along its axially through plunger shaft, described piston only one end
Outside wall surface is equipped with the external screw thread with the screw-internal thread fit, and the piston only other end is equipped with the peace being connected to the plunger shaft
Tankage；Throttle plug, and the throttling plug is located in the mounting groove.
According to one embodiment of present invention, at least one throttling radially penetrated through is additionally provided in the throttling plug
Hole and at least one towards the open at one end where the piston rod groove.
According to one embodiment of present invention, the outside wall surface of the piston only be spaced apart be equipped with multiple annular guide grooves and
Multiple oil-through holes being connected to the piston only other end, the piston component further include: multiple guide rings, it is multiple described to lead
It is respectively provided in multiple guide grooves to ring.
According to one embodiment of present invention, the radial dimension of the cylinder body is 125mm, the radial dimension of the piston rod
For 115mm, the maximum radial dimension of the piston only is 123.3mm.
Detailed description of the invention
Fig. 1 is the axial section according to the hollow boxcar elevating ram of the embodiment of the present invention；
Fig. 2 is the enlarged structure schematic diagram of A in Fig. 1.
Appended drawing reference:
Empty van vehicle elevating ram 100；
Cylinder body 10；
Piston rod 20；
Piston only 31；Oil-through hole 311；Throttle plug 32；Throttle orifice 321；Groove 322；
First guide part 40；Dynamic sealing slot 41；Static seal slot 42；Oil groove 43；Oilhole 44；
Second guide part 50；
Fixing piece 60；
Axle sleeve 70；
Retaining ring 80.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Empty van vehicle elevating ram 100 according to an embodiment of the present invention is specifically described in conjunction with attached drawing first below.
As depicted in figs. 1 and 2, empty van vehicle elevating ram 100 according to an embodiment of the present invention includes cylinder body 10, piston rod
20, piston component (not shown), the first guide part 40, the second guide part 50 and fixing piece 60.
Specifically, defining axially extending and open at one end installation cavity along its in cylinder body 10, piston rod 20 is along cylinder body
10 axial direction is movably located in installation cavity and installation cavity is stretched out in one end, is defined in piston rod 20 along its axially extending bar
Chamber, piston component are located in installation cavity and are connected with the other end of piston rod 20, define in piston component axially extending along its
And the plunger shaft of one end and rod cavity perforation, the first guide part 40 are formed as annular element, the first guide part 40 be located in installation cavity and
It is set in one end of piston rod 20, the second guide part 50 is formed as annular element, and the second guide part 50 is located in installation cavity and neighbouring
First guide part 40 is set on piston rod 20, and fixing piece 60 is formed as annular element, and at least part of fixing piece 60 is stopped respectively
It is connected to the first guide part 40 and cylinder body 10 and with the outside wall surface of cylinder body 10.
In other words, empty van vehicle elevating ram 100 mainly by cylinder body 10, piston rod 20, piston component, the first guide part 40,
Second guide part 50 and fixing piece 60 form, wherein piston rod 20 uses hollow drawn tube to play the role of loss of weight, piston rod
Lead to oil in 20, offsets part external applied load to improve the counter-bending non-deformability of oil cylinder.Elevating ram in the prior art is led
It is too long to covering, raw material are wasted, empty van vehicle elevating ram 100 of the invention is by existing guide sleeve structure one dividing into three, such as Fig. 1
Shown, the first guide part 40 is located at right side to be responsible for sealing, and the second guide part 50 is located at left side to be responsible for guiding, 60 shape of fixing piece
As annular element to be responsible for connection, fixing piece 60 can be conventional gland structure, easy to process, and three small parts are by existing skill
Big guide sleeve structure breaks the whole up into parts in art, and each individual part materials are convenient, and difficulty of processing substantially reduces.
To sum up, empty van vehicle elevating ram 100 according to an embodiment of the present invention, by by the first guide part 40, second
Guide part 50 is respectively sleeved on piston rod 20, and connects the first guide part 40 and cylinder body 10, the empty van vehicle by fixing piece 60
Elevating ram 100 is not only simple in structure, and saves raw material, and be easily installed and position.
According to one embodiment of present invention, the inner wall of the first guide part 40, which is spaced apart, sets there are two dynamic sealing slot 41,
Outside wall surface, which is spaced apart, to be set there are two static seal slot 42, and empty van vehicle elevating ram 100 further includes two first seals and two the
Two sealing elements.
Specifically, two first seals are respectively provided in two dynamic sealing slots 41, and two second seals are respectively provided at
In two static seal slots 42, it is contemplated that the stroke of empty van vehicle elevating ram 100 is longer, therefore sets on the first guide part 40 respectively
Two first seals and two second seals are set to further function as the effect of sealing.
Preferably, at least one is defined in the first guide part 40 radially to extend and be connected to 40 inner wall of the first guide part
One end of the oilhole 44 in face and outside wall surface, each oilhole 44 towards 40 inner wall of the first guide part is respectively formed oil groove 43.
Specifically, oil groove 43 is additionally provided on the first guide part 40, oil groove 43 leads to pressure tap/gas vent by oilhole 44 outside,
In addition, oil liquid can also be introduced the front end of second seal by oil groove 43, the O-ring tensioning of the second static seal is helped, is increased
Static seal effect, in addition, corrosion can plate zinc-nickel in the section in order to prevent.That is, 44 inside processing oil groove 43 of oilhole, oil
For 43 oil storage of slot to lubricate the second seal of rear side, the outside of oilhole 44 can also process outside oil groove to play oil storage and reduce essence
The effect of processing dimension.
Preferably, the inner wall of the second guide part 50 is defined along its axially extending mounting groove, empty van vehicle elevating ram
100 further include two axle sleeves 70, and two axle sleeves 70 are respectively provided in mounting groove and are set on piston rod 20, that is to say, that
The inner wall of second guide part 50 arranges sliding shaft sleeve 70.
According to one embodiment of present invention, inner wall of second guide part 50 adjacent to 40 one end of the first guide part is equipped with storage
Oil groove.Preferably, the part on the inner wall of the second guide part 50 between oil storage tank and mounting groove is equipped with circlip groove, empty van
Vehicle elevating ram 100 further includes retaining ring 80, and retaining ring 80 is located in circlip groove.
Specifically, arranging sliding shaft sleeve 70 in the second guide part 50, and cylinder bottom retaining ring 80 is arranged in axle sleeve 70
Rear portion, front is towards on the inside of oil cylinder, since the assembly outer ring radial dimension of elastic spring 80 is bigger than the outer diameter of axle sleeve 70
0.5mm, in addition, the space in retaining ring portion after 80s is larger, can play additional oil storage function to increase the mating surface of oil cylinder,
It is lubricated convenient for rear side second seal.
According to one embodiment of present invention, the outside wall surface of 20 other end of piston rod is equipped with internal screw thread, and piston component also wraps
Include piston only 31 and throttling plug 32.
Specifically, defined in piston only 31 along its axially through plunger shaft, the outside wall surface of 31 one end of piston only
Equipped with the external screw thread with screw-internal thread fit, 31 other end of piston only is equipped with the mounting groove being connected to plunger shaft, and throttle plug 32
It is located in mounting groove.
Specifically, piston only 31 is connected through a screw thread with piston rod 20, it is easily installed and dismantles, piston component is main
It is made of piston only 31 and throttling plug 32, since the bar core of piston rod 20 is hollow, in order to guarantee stability, inner hole need to be allowed to fill
Oil, but the falling of oil liquid moment causes to shake in order to prevent, therefore throttling plug 32 is set in the left end of piston only 31.
Further, the throttle orifice 321 and at least one that at least one is radially penetrated through are additionally provided in throttling plug 32
Towards the groove 322 of the open at one end where piston rod 20.
In other words, circumferentially extending also is devised in inside other than the conventional throttle orifice 321 of setting on throttling plug 32
Groove 322, groove 322 can not only play the role of loss of weight, but also oil liquid can be stored up in groove 322.Oil liquid will under
The moment fallen, oil liquid can initially enter groove 322, then flow out by throttle orifice 321, to largely limit oil liquid
Moment falls after rise.
In one embodiment of the invention, the outside wall surface of piston only 31 is spaced apart equipped with multiple annular guide grooves and more
A oil-through hole 311 being connected to 31 other end of piston only, piston component further include multiple guide rings, and multiple guide rings are set respectively
In multiple guide grooves.
Specifically, since the bar diameter of piston rod 20 differs smaller with cylinder diameter, piston only 31 no longer milled oil groove 43,
But 2-4 oil-through hole 311 is directly processed, oil-through hole 311 is not limited by cylinder rod diameter, which not only can be excessively oily, but also
It can be used as the spanner for tightening screw thread.Since empty van vehicle elevating ram 100 is one-way cylinder, in piston only 31
Guide ring is all arranged in circumferential direction, increases guiding role, and since oil-through hole 311 assumes responsibility for the effect of tap wrench, it is living
It is flat that the right end of plug body 31 can not have to milling, and then increases its mating surface with guide frame.
In one embodiment of the invention, the radial dimension of cylinder body 10 is 125mm, and the radial dimension of piston rod 20 is
115mm, the maximum radial dimension of piston only 31 are 123.3mm, 10 cylinder diameter of cylinder body of the invention and cylinder diameter in the prior art
Compared to 5mm is increased, the gap of cylinder diameter Yu bar diameter is reduced, so that piston component and guide frame are redesigned, piston only
31 and cylinder diameter difference 1.7mm, it is structurally reasonable.
To sum up, empty van vehicle elevating ram 100 according to an embodiment of the present invention, by by the first guide part 40, second
Guide part 50 is respectively sleeved on piston rod 20, and connects the first guide part 40 and cylinder body 10, the empty van vehicle by fixing piece 60
Elevating ram 100 is not only simple in structure, and saves raw material, and be easily installed and position.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of empty van vehicle elevating ram characterized by comprising
Cylinder body defines axially extending and open at one end installation cavity along its in the cylinder body；
Piston rod, the piston rod is movably located in the installation cavity along the axial direction of the cylinder body and the peace is stretched out in one end
It behave affectedly, is defined in the piston rod along its axially extending rod cavity；
Piston component, the piston component are located in the installation cavity and are connected with the other end of the piston rod, the piston
The plunger shaft of and one end axially extending along its and rod cavity perforation is defined in component；
First guide part, first guide part are formed as annular element, and first guide part is located in the installation cavity and covers
It is located at one end of the piston rod；
Second guide part, second guide part are formed as annular element, and second guide part is located in the installation cavity and adjacent
Nearly first guide sleeve is located on the piston rod；
Fixing piece, the fixing piece are formed as annular element, and at least part of the fixing piece only supports first guiding respectively
Part and the cylinder body and it is connected with the outside wall surface of the cylinder body.
2. empty van vehicle elevating ram according to claim 1, which is characterized in that the inner wall face interval of first guide part
It opens up there are two dynamic sealing slot, outside wall surface, which is spaced apart, sets that there are two static seal slot, the empty van vehicle elevating rams further include:
Two first seals, two first seals are respectively provided in two dynamic sealing slots；
Two second seals, two second seals are respectively provided in two static seal slots.
3. empty van vehicle elevating ram according to claim 2, which is characterized in that defined at least in first guide part
One radially extends and is connected to the oilhole of the first guide part inner wall and outside wall surface, and each oilhole is described in
One end of first guide part inner wall is respectively formed oil groove.
4. empty van vehicle elevating ram according to claim 2, which is characterized in that the inner wall of second guide part limits
Have along its axially extending mounting groove, the empty van vehicle elevating ram further include:
Two axle sleeves, two axle sleeves are respectively provided in the mounting groove and are set on the piston rod.
5. empty van vehicle elevating ram according to claim 2, which is characterized in that second guide part is adjacent to described first
The inner wall of guide part one end is equipped with oil storage tank.
6. empty van vehicle elevating ram according to claim 5, which is characterized in that the inner wall of second guide part is upper
Part between the oil storage tank and the mounting groove is equipped with circlip groove, the empty van vehicle elevating ram further include:
Retaining ring, the retaining ring are located in the circlip groove.
7. empty van vehicle elevating ram according to claim 1, which is characterized in that the outside wall surface of the piston rod other end is set
There are internal screw thread, the piston component further include:
Piston only, define in the piston only along its axially through plunger shaft, the outer wall of described piston only one end
Face is equipped with the external screw thread with the screw-internal thread fit, and the piston only other end is equipped with the installation being connected to the plunger shaft
Slot；
Throttle plug, and the throttling plug is located in the mounting groove.
8. empty van vehicle elevating ram according to claim 7, which is characterized in that be additionally provided at least one in the throttling plug
A throttle orifice radially penetrated through and at least one towards the open at one end where the piston rod groove.
9. empty van vehicle elevating ram according to claim 7, which is characterized in that the outside wall surface of the piston only is spaced apart
Equipped with multiple annular guide grooves and multiple oil-through holes being connected to the piston only other end, the piston component further include:
Multiple guide rings, multiple guide rings are respectively provided in multiple guide grooves.
10. empty van vehicle elevating ram according to claim 1, which is characterized in that the radial dimension of the cylinder body is
125mm, the radial dimension of the piston rod are 115mm, and the maximum radial dimension of the piston only is 123.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910608172.XA CN110273889B (en) | 2019-07-08 | 2019-07-08 | Lifting oil cylinder of empty box vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910608172.XA CN110273889B (en) | 2019-07-08 | 2019-07-08 | Lifting oil cylinder of empty box vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110273889A true CN110273889A (en) | 2019-09-24 |
| CN110273889B CN110273889B (en) | 2020-12-29 |
Family
ID=67964098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910608172.XA Active CN110273889B (en) | 2019-07-08 | 2019-07-08 | Lifting oil cylinder of empty box vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273889B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110805A (en) * | 1998-10-01 | 2000-04-18 | Kayaba Ind Co Ltd | Seal structure of joint rod |
| CN203822741U (en) * | 2014-03-12 | 2014-09-10 | 湖南协力液压有限公司 | Sealing structure of pumping cylinder rod |
| CN108302087A (en) * | 2018-04-11 | 2018-07-20 | 江苏恒立液压股份有限公司 | Long stroke elevating ram |
| CN108386407A (en) * | 2018-03-07 | 2018-08-10 | 徐州永佳液压设备有限公司 | Split type oil cylinder guide frame |
| CN108999830A (en) * | 2018-06-29 | 2018-12-14 | 湖南特力液压有限公司 | Hydraulic cylinder, fluid power system and engineering machinery |
| CN208565128U (en) * | 2018-06-11 | 2019-03-01 | 江苏恒立液压股份有限公司 | Elevating ram |
-
2019
- 2019-07-08 CN CN201910608172.XA patent/CN110273889B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110805A (en) * | 1998-10-01 | 2000-04-18 | Kayaba Ind Co Ltd | Seal structure of joint rod |
| CN203822741U (en) * | 2014-03-12 | 2014-09-10 | 湖南协力液压有限公司 | Sealing structure of pumping cylinder rod |
| CN108386407A (en) * | 2018-03-07 | 2018-08-10 | 徐州永佳液压设备有限公司 | Split type oil cylinder guide frame |
| CN108302087A (en) * | 2018-04-11 | 2018-07-20 | 江苏恒立液压股份有限公司 | Long stroke elevating ram |
| CN208565128U (en) * | 2018-06-11 | 2019-03-01 | 江苏恒立液压股份有限公司 | Elevating ram |
| CN108999830A (en) * | 2018-06-29 | 2018-12-14 | 湖南特力液压有限公司 | Hydraulic cylinder, fluid power system and engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110273889B (en) | 2020-12-29 |
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