CN104358735A - Lifting hydraulic oil cylinder - Google Patents
Lifting hydraulic oil cylinder Download PDFInfo
- Publication number
- CN104358735A CN104358735A CN201410567115.9A CN201410567115A CN104358735A CN 104358735 A CN104358735 A CN 104358735A CN 201410567115 A CN201410567115 A CN 201410567115A CN 104358735 A CN104358735 A CN 104358735A
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- Prior art keywords
- piston
- cylinder barrel
- hydraulic oil
- cylinder
- floating
- 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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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 88
- 238000007667 floating Methods 0.000 claims abstract description 72
- 230000008676 import Effects 0.000 claims description 29
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- 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
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
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- 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
- F15B15/1433—End caps
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- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention belongs to the technical field of hydraulic equipment, and discloses a lifting hydraulic oil cylinder, which is used for solving the problem of potential safety hazards of a conventional hydraulic oil cylinder. The lifting hydraulic oil cylinder comprises a cylinder barrel, wherein the cylinder barrel is provided with a piston and a piston rod; a first hydraulic oil inlet/outlet is formed in the upper end of the cylinder barrel; a second hydraulic oil inlet/outlet is formed in the lower end of the cylinder barrel; the first and second hydraulic oil inlets/outlets are provided with valves; a support leg is connected to the bottom end of the cylinder barrel, and a cylinder cover is connected to the top end of the cylinder barrel; one end of the piston rod penetrates through the cylinder cover, and is connected with the piston arranged in the cylinder barrel, and the other end of the piston rod is connected with a top plate; a floating piston is arranged in the cylinder barrel between the first hydraulic oil inlet/outlet and the piston; a floating piston is arranged in the cylinder barrel between the second hydraulic oil inlet/outlet and the piston; two cushion valves for enabling hydraulic oil between the piston and the floating pistons to flow are arranged on the floating pistons. According to the lifting hydraulic oil cylinder, the potential safety hazards of the hydraulic oil cylinder can be eliminated, and the safety performance of the hydraulic oil cylinder can be improved.
Description
Technical field
Technical field of hydraulic equipment of the present invention, is specifically related to a kind of lifting hydraulic jack.
Background technique
Hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion by oil hydraulic cylinder.Have that structure is simple, the feature of reliable operation.When realizing to-and-fro motion with oil hydraulic cylinder, can speed reducer be removed from, and there is no drive gap, stable movement, being used widely therefore in the hydraulic system of various machinery.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is made up of cylinder barrel and cylinder cap, piston, piston rod and seal arrangement substantially.
Such as application number be 201220257584.7 patent of invention disclose a kind of hydraulic jack, comprise cylinder body, piston, piston rod, cylinder head and cylinder tail, cylinder head, cylinder tail are separately positioned on cylinder body two ends, cylinder body comprises the first cylinder body and the second cylinder body, removably connect between first cylinder body and the second cylinder body, piston, piston rod are arranged on cylinder interior, and piston is fixedly connected with piston rod, offer installation passage in piston rod; Be bolted between first cylinder body and the second cylinder body; End cover is provided with between first cylinder body and the second cylinder body; Cylinder head, cylinder tail are connected with cylinder body respectively by screw; Piston rod one end is connected with hangs head.
Application number be 201320261211.1 patent of invention disclose a kind of hydraulic jack, hydraulic jack comprises carbon fiber composite cylinder barrel, and the end, two ends of cylinder barrel is connected to cylinder sleeve; Cylinder barrel includes the construction layer formed by carbon fiber composite and the impervious barrier formed in integratedly on described construction layer; Impervious barrier thickness is 0.05-0.5mm; Link respectively by adhesive layer between cylinder barrel and described cylinder sleeve; The thickness of hydraulic oil adhesive layer is 0.5-25mm, and length is 0.05-2m; Cylinder sleeve is respectively Metallic cylinder, and the first cylinder sleeve wherein in Metallic cylinder is set in the end, one end of described cylinder barrel, and the second cylinder sleeve is set in the other end end of described cylinder barrel; Hydraulic jack also includes the first hydraulic fluid port be arranged on the first cylinder sleeve and the second hydraulic fluid port being arranged on described second cylinder sleeve, and the other end end of cylinder barrel is closed by cylinder bottom; The outer circumferential face of the end portion that the first cylinder sleeve is relative with the second cylinder sleeve is formed with tapering respectively, reduces toward each other to make the external diameter of the first cylinder sleeve end portion relative with the second cylinder sleeve; Tapering is less than 1:10.
Application number be 201320824833.0 patent of invention disclose a kind of hydraulic jack, comprise one-level cylinder barrel, secondary cylinder barrel, piston and piston rod, secondary cylinder barrel is arranged in one-level cylinder barrel, and the opening end inwall of one-level cylinder barrel and the outer wall of secondary cylinder barrel are sealed and matched; Piston is fixedly connected with piston rod one end, and piston coordinates with the inner wall sealing of secondary cylinder barrel, and piston rod coordinates with the opening end inner wall sealing of secondary cylinder barrel; Hydraulic jack also comprises upper ear seat and lower ear base, and upper ear seat is connected with one-level cylinder barrel, and lower ear base is connected with the outer end of piston rod; Have the cylindrical structure of cylindrical cavity in one-level cylinder barrel, lower ear base fixed cover is located at one end of one-level cylinder barrel, forms the sealed end of one-level cylinder barrel; The other end inwall of one-level cylinder barrel offering multiple annular groove, in multiple annular groove, being provided with the Sealing for sealing one-level cylinder barrel and secondary cylinder barrel and dust ring; There is in secondary cylinder barrel the cylindrical structure of cylindrical cavity, one end inwall of secondary cylinder barrel offers multiple annular groove, in multiple annular groove, being provided with the Sealing for sealing secondary cylinder barrel and piston rod and dust ring; Piston cylinder comprises piston assembly department and hollow cylindrical; Piston assembly department has the mounting hole for installing piston, piston assembly department and hollow cylindrical integrally shape; Lower ear base and piston rod attachment portion are provided with ladder assembly department, and the first end difference of ladder assembly department is fixedly connected with the hollow cylindrical of piston rod; Second end difference of ladder assembly department is arranged with cushion, and cushion is arranged between secondary cylinder barrel lower ear base, and for cushioning the impact of secondary cylinder barrel to lower ear base, cushion is nylon pad.
But for lifting hydraulic jack, in the process of work, when particularly using under the environment of work under bad environment, easily there is situation about damaging in hydraulic system and hydraulic tubing, thus there is larger potential safety hazard.
Summary of the invention
There is the problem of larger potential safety hazard in the present invention, and provides a kind of lifting hydraulic jack in order to solve existing hydraulic jack, have buffer capacity, eliminate safe hidden trouble, improve Safety performance.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of lifting hydraulic jack, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; It is characterized in that, the bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually.
Described cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position.
Elastic buffering mechanism is arranged with in cylinder barrel between the spacing recessed stupefied of cylinder barrel lower end and piston.
Top and the bottom of described cylinder barrel are provided with cushion pad, between described valve and cylinder barrel, are equipped with seal arrangement between piston rod and cylinder cap.
Described trimmer valve comprises valve seat, base and valve block, and described valve seat is arranged on floating piston, and described floor installation is on valve seat; Described valve block to be arranged on base and to coordinate with the valve opening on valve seat, is provided with spring between valve block and valve seat.
Described piston and floating piston are equipped with seal ring.
The bottom surface of described supporting foot is evenly provided with multiple round rag.
Compared with prior art, the present invention has following beneficial effect:
Lifting hydraulic jack of the present invention, by arranging two floating pistons in the top and bottom of cylinder barrel, and floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually, make first to move at promotion piston through floating piston in the process used, improve the stationarity of piston movement; When there is accident condition in the process used (as simultaneously, hydraulic system quits work suddenly, hydraulic system pressure increases suddenly, hydraulic tubing damage), due to pressure release, the buffer function of floating piston, the strenuous exercise of piston can be prevented, ensure that piston can run stably, thus eliminate safe hidden trouble, improve the Security of hydraulic jack.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of trimmer valve of the present invention;
Mark in figure: 1, cylinder barrel, the 2, first hydraulic oil is imported and exported, and 3, cylinder cap, 4, top board, 5, floating piston, 6, piston rod, 7, piston, 8, elastic buffering mechanism, 9, recessed stupefied, 10, seal ring, 11, cushion pad, the 12, supporting foot, 13, second hydraulic oil is imported and exported, 14, trimmer valve, 15, valve seat, 16, spring, 17, valve block, 18, base, 19, valve opening.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only the present invention's part embodiment, is not whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection scope of the present invention.
Lifting hydraulic jack of the present invention, comprise cylinder barrel 1, cylinder barrel is joined 1 and is provided with piston 7 and piston rod 6, the upper end of described cylinder barrel 1 is provided with the first hydraulic oil and imports and exports 2, the lower end of described cylinder barrel 1 is provided with the second hydraulic oil and imports and exports 13, and described first hydraulic oil import and export 2 and the second hydraulic oil are imported and exported 13 and is equipped with valve; The bottom of described cylinder barrel 1 is connected with supporting foot 12, and the top of described cylinder barrel 1 is connected with cylinder cap 3, and described piston rod 6 one end is connected with the piston 7 be arranged in cylinder barrel 1 through cylinder cap 3, and the other end of described piston rod 6 is connected with top board 4; Described first hydraulic oil is imported and exported in the cylinder barrel 1 between 2 and piston 7 and is equipped with floating piston 5, described second hydraulic oil is imported and exported in the cylinder barrel 1 between 13 and piston 7 and is equipped with floating piston, described floating piston 5 is provided with two trimmer valves 14 that the hydraulic oil between piston 7 and floating piston 5 is flowed mutually.
Working procedure of the present invention is: when needs carry out lifting support time, import and export from the second hydraulic oil and add hydraulic oil, when hydraulic fluid pressure reaches certain pressure, the trimmer valve be positioned on the floating piston of cylinder barrel lower end is opened, promote piston upwards in the cylinder barrel that hydraulic oil enters piston, piston promotes piston rod and carries out work; If the oil pressure of hydraulic system increases suddenly in the process risen, start working at the Decompression valves of the floating piston being positioned at piston upper end, carry out pressure release cushion task, play the effect of protection.When hydraulic jack packed up by needs time, import and export from the first hydraulic oil and add hydraulic oil, slowly promote piston and move down, simultaneously carry out buffer protection function being positioned at the floating piston below piston, ensure decline and run steady.
By arranging two floating pistons 5 in the top and bottom of cylinder barrel 1, and floating piston 5 is provided with two trimmer valves 14 that the hydraulic oil between piston 7 and floating piston 5 is flowed mutually, make first to move at promotion piston through floating piston in the process used, improve the stationarity of piston movement; When there is accident condition in the process used (as simultaneously, hydraulic system quits work suddenly, hydraulic system pressure increases suddenly, hydraulic tubing damage), due to pressure release, the buffer function of floating piston, the strenuous exercise of piston can be prevented, ensure that piston can run stably, thus eliminate safe hidden trouble, improve the Security of hydraulic jack.
As a kind of preferred mode of the present invention, for the ease of the stroke that control piston 7 runs, cylinder barrel 1 be provided with for limit floating piston 5 position spacing recessed stupefied 9, improve practicability of the present invention.
In the cylinder barrel between spacing recessed stupefied 9 and piston 7 of cylinder barrel 1 lower end, be arranged with elastic buffering mechanism 8, prevent piston 7 from directly clashing into spacing recessed distracted 9, improve the working life of piston 7.Elastic buffering mechanism 8 can ensure the proper flow of hydraulic oil.
Top and the bottom of described cylinder barrel 1 are provided with cushion pad 11, are equipped with seal arrangement between described valve and cylinder barrel 1, between piston rod 6 and cylinder cap 3.The rigid contact eliminating floating piston and cylinder barrel is convenient in the design of cushion pad 11, can play certain buffer function, improves the stationarity that this hydraulic jack uses, improves the working life of hydraulic jack simultaneously.
As a kind of preferred mode of the present invention, described trimmer valve 14 comprises valve seat 15, base 18 and valve block 17, and described valve seat 15 is arranged on floating piston 5, and described base 18 is arranged on valve seat 15; Described valve block 17 to be arranged on base 18 and to coordinate with the valve opening 19 on valve seat, is provided with spring 16 between valve block 17 and valve seat 15.Due to the effect of trimmer valve, there will not be idle running phenomenon, improve hydraulic jack traveling comfort energy and Security.
Preferably, piston 7 of the present invention and floating piston 5 are equipped with seal ring 10, prevent the mutual leakage of hydraulic oil, improve the stability of hydraulic jack.
The bottom surface of supporting foot 12 of the present invention is evenly provided with multiple round rag, ensure that the stability that supporting foot supports.
Embodiment one
The lifting hydraulic jack of the present embodiment, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; The bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually.
Embodiment two
The lifting hydraulic jack of the present embodiment, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; The bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually; Cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position.
Embodiment three
The lifting hydraulic jack of the present embodiment, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; The bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually; Cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position; Elastic buffering mechanism is arranged with in cylinder barrel between the spacing recessed stupefied of cylinder barrel lower end and piston.
Embodiment four
The lifting hydraulic jack of the present embodiment, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; The bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually; Cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position; Elastic buffering mechanism is arranged with in cylinder barrel between the spacing recessed stupefied of cylinder barrel lower end and piston; Top and the bottom of cylinder barrel are provided with cushion pad, between described valve and cylinder barrel, are equipped with seal arrangement between piston rod and cylinder cap.
Embodiment five
The lifting hydraulic jack of the present embodiment, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; The bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually; Cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position; Elastic buffering mechanism is arranged with in cylinder barrel between the spacing recessed stupefied of cylinder barrel lower end and piston; Top and the bottom of cylinder barrel are provided with cushion pad, between described valve and cylinder barrel, are equipped with seal arrangement between piston rod and cylinder cap; Trimmer valve comprises valve seat, base and valve block, and described valve seat is on floating piston, and described floor installation is on valve seat; Described valve block to be arranged on base and to coordinate with the valve opening on valve seat, is provided with spring between valve block and valve seat.
Embodiment six
The lifting hydraulic jack of the present embodiment, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; The bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually; Cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position; Elastic buffering mechanism is arranged with in cylinder barrel between the spacing recessed stupefied of cylinder barrel lower end and piston; Top and the bottom of cylinder barrel are provided with cushion pad, between described valve and cylinder barrel, are equipped with seal arrangement between piston rod and cylinder cap; Trimmer valve comprises valve seat, base and valve block, and described valve seat is on floating piston, and described floor installation is on valve seat; Described valve block to be arranged on base and to coordinate with the valve opening on valve seat, is provided with spring between valve block and valve seat; Piston and floating piston are equipped with seal ring; The bottom surface of described supporting foot is evenly provided with multiple round rag.
Claims (7)
1. a lifting hydraulic jack, comprise cylinder barrel, cylinder barrel is equipped with piston and piston rod, and the upper end of described cylinder barrel is provided with the first hydraulic oil and imports and exports, the lower end of described cylinder barrel is provided with the second hydraulic oil and imports and exports, and described first hydraulic oil is imported and exported and the import and export of the second hydraulic oil are equipped with valve; It is characterized in that, the bottom of described cylinder barrel is connected with supporting foot, and the top of described cylinder barrel is connected with cylinder cap, and described piston rod one end is connected with the piston be arranged in cylinder barrel through cylinder cap, and the other end of described piston rod is connected with top board; Described first hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described second hydraulic oil is imported and exported in the cylinder barrel between piston and is equipped with floating piston, described floating piston is provided with two trimmer valves that the hydraulic oil between piston and floating piston is flowed mutually.
2. lifting hydraulic jack according to claim 1, is characterized in that, described cylinder barrel is provided with for limiting the spacing recessed stupefied of floating piston position.
3. lifting hydraulic jack according to claim 2, is characterized in that, is arranged with elastic buffering mechanism in the cylinder barrel between the spacing recessed stupefied of cylinder barrel lower end and piston.
4. lifting hydraulic jack according to claim 3, is characterized in that, top and the bottom of described cylinder barrel are provided with cushion pad, between described valve and cylinder barrel, are equipped with seal arrangement between piston rod and cylinder cap.
5. lifting hydraulic jack according to claim 4, is characterized in that, described trimmer valve comprises valve seat, base and valve block, and described valve seat is arranged on floating piston, and described floor installation is on valve seat; Described valve block to be arranged on base and to coordinate with the valve opening on valve seat, is provided with spring between valve block and valve seat.
6., according to the arbitrary described lifting hydraulic jack of claim 1-5, it is characterized in that, described piston and floating piston are equipped with seal ring.
7. lifting hydraulic jack according to claim 6, is characterized in that, the bottom surface of described supporting foot is evenly provided with multiple round rag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567115.9A CN104358735B (en) | 2014-10-22 | 2014-10-22 | A kind of lifting hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567115.9A CN104358735B (en) | 2014-10-22 | 2014-10-22 | A kind of lifting hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104358735A true CN104358735A (en) | 2015-02-18 |
| CN104358735B CN104358735B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410567115.9A Active CN104358735B (en) | 2014-10-22 | 2014-10-22 | A kind of lifting hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358735B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676318A (en) * | 2017-10-26 | 2018-02-09 | 苏州大闹天宫机器人科技有限公司 | Seesaw toy based on true and false piston |
| CN109356903A (en) * | 2018-12-01 | 2019-02-19 | 江苏汉东机械有限公司 | It is a kind of hydraulic machine newly manufactured |
| CN117450133A (en) * | 2023-12-13 | 2024-01-26 | 江苏亚力亚气动液压成套设备有限公司 | Buffering hydraulic cylinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2336066A1 (en) * | 1973-07-16 | 1975-02-06 | Wabco Westinghouse Gmbh | Pneumatic positioner - plunger operating within hollow secondary piston with restricted port connections |
| CN2252906Y (en) * | 1996-05-07 | 1997-04-23 | 骆永志 | Impact energy absorber |
| DE20213022U1 (en) * | 2002-08-24 | 2003-01-16 | Schlutz Heinz | End of stroke damper for hydraulically operated cylinder, comprising two axial movable discs joined with two bolts |
| US20070221054A1 (en) * | 2006-03-27 | 2007-09-27 | Timothy David Webster | Fluid Actuator with Limit Sensors and Fluid Limit Valves |
| CN202158034U (en) * | 2011-08-05 | 2012-03-07 | 上海鸿得利重工股份有限公司 | Oil cylinder with floating piston |
| CN202768520U (en) * | 2012-08-09 | 2013-03-06 | 三一重工股份有限公司 | Plunger cylinder, hydraulic system and engineering machinery |
| CN103043092A (en) * | 2013-01-21 | 2013-04-17 | 北京理工大学 | Hydraulic centering cylinder with mechanical lockup function |
| CN204267420U (en) * | 2014-10-22 | 2015-04-15 | 湖州环丰机械有限公司 | A kind of lifting hydraulic jack |
-
2014
- 2014-10-22 CN CN201410567115.9A patent/CN104358735B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2336066A1 (en) * | 1973-07-16 | 1975-02-06 | Wabco Westinghouse Gmbh | Pneumatic positioner - plunger operating within hollow secondary piston with restricted port connections |
| CN2252906Y (en) * | 1996-05-07 | 1997-04-23 | 骆永志 | Impact energy absorber |
| DE20213022U1 (en) * | 2002-08-24 | 2003-01-16 | Schlutz Heinz | End of stroke damper for hydraulically operated cylinder, comprising two axial movable discs joined with two bolts |
| US20070221054A1 (en) * | 2006-03-27 | 2007-09-27 | Timothy David Webster | Fluid Actuator with Limit Sensors and Fluid Limit Valves |
| CN202158034U (en) * | 2011-08-05 | 2012-03-07 | 上海鸿得利重工股份有限公司 | Oil cylinder with floating piston |
| CN202768520U (en) * | 2012-08-09 | 2013-03-06 | 三一重工股份有限公司 | Plunger cylinder, hydraulic system and engineering machinery |
| CN103043092A (en) * | 2013-01-21 | 2013-04-17 | 北京理工大学 | Hydraulic centering cylinder with mechanical lockup function |
| CN204267420U (en) * | 2014-10-22 | 2015-04-15 | 湖州环丰机械有限公司 | A kind of lifting hydraulic jack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676318A (en) * | 2017-10-26 | 2018-02-09 | 苏州大闹天宫机器人科技有限公司 | Seesaw toy based on true and false piston |
| CN109356903A (en) * | 2018-12-01 | 2019-02-19 | 江苏汉东机械有限公司 | It is a kind of hydraulic machine newly manufactured |
| CN117450133A (en) * | 2023-12-13 | 2024-01-26 | 江苏亚力亚气动液压成套设备有限公司 | Buffering hydraulic cylinder |
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|---|---|
| CN104358735B (en) | 2016-08-24 |
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Denomination of invention: A lifting hydraulic cylinder Effective date of registration: 20231130 Granted publication date: 20160824 Pledgee: Zhejiang Deqing Rural Commercial Bank Co.,Ltd. leidian sub branch Pledgor: HUZHOU HUANFENG MACHINERY Co.,Ltd. Registration number: Y2023980068377 |