CN106837921B - Pressurizing cylinder - Google Patents
Pressurizing cylinder Download PDFInfo
- Publication number
- CN106837921B CN106837921B CN201710196003.0A CN201710196003A CN106837921B CN 106837921 B CN106837921 B CN 106837921B CN 201710196003 A CN201710196003 A CN 201710196003A CN 106837921 B CN106837921 B CN 106837921B
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- China
- Prior art keywords
- piston
- contact surface
- oil
- high pressure
- hydraulic fluid
- 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.)
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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
- 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
-
- 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
- F15B15/1457—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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of pressurizing cylinders, including cylinder body, piston is equipped in the cylinder body, cylinder interior is divided into low pressure chamber and high pressure chest by the piston, sealing structure is formed between the cylinder body, piston, low pressure chamber and high pressure chest, the cylinder body is equipped with the first hydraulic fluid port being connected to low pressure chamber and the multiple oil outlets being connected to high pressure chest, and the first hydraulic fluid port oil inlet pushes piston motion to make it that the oil liquid in high pressure chest be pushed to form high pressure from oil outlet outflow.By the above-mentioned means, pressurizing cylinder of the present invention, can reduce test period, meet test demand, structure is simple, long service life.
Description
Technical field
The present invention relates to oil cylinder fields, more particularly to a kind of pressurizing cylinder.
Background technique
The power that existing 2P cylinder bench uses is hydraulic pump, and output maximum pressure is 35MPa, and hydraulic cylinder is maximum
Operating pressure also can reach 35MPa or so, so the system output pressure needed when as 2P test is 70MPa.Without using increasing
Cylinder pressure cannot meet test requirements document.It can only achieve 35MPa, oil cylinder test life time without using system pressure when pressurizing cylinder
It is long.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of pressurizing cylinders, can reduce test period, meet test
Demand, structure is simple, long service life.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of pressurizing cylinder, including cylinder are provided
Body, is equipped with piston in the cylinder body, and cylinder interior is divided into low pressure chamber and high pressure chest by the piston, the cylinder body, piston, low
Sealing structure is formed between pressure chamber and high pressure chest, the cylinder body is equipped with the first hydraulic fluid port and and high pressure chest being connected to low pressure chamber
Multiple oil outlets of connection, the first hydraulic fluid port oil inlet push piston motion make its push the oil liquid in high pressure chest formed high pressure from
Oil outlet outflow.
In a preferred embodiment of the present invention, the piston is contacted with the contact surface of the hydraulic oil in low pressure chamber for first
The contact surface of hydraulic oil in face, piston and high pressure chest is the second contact surface, and the area of first contact surface is greater than second and connects
The area of contacting surface.
In a preferred embodiment of the present invention, the area of first contact surface is 3 times of the area of the second contact surface,
The pressure of the hydraulic oil of the oil outlet is 3 times of the hydraulic oil pressure of the first hydraulic fluid port.
In a preferred embodiment of the present invention, the second hydraulic fluid port is additionally provided on the cylinder body, second hydraulic fluid port enters liquid
Pressure oil pushes piston motion that it is made to push the hydraulic oil oil return in low pressure chamber.
In a preferred embodiment of the present invention, the contact surface for the hydraulic oil that the piston and the second hydraulic fluid port enter is third
Contact surface, the area of second contact surface are less than the area of third contact surface.
In a preferred embodiment of the present invention, closing chamber is equipped in the low pressure chamber, the piston is equipped with bumper post,
The piston enters bumper post in closing chamber by the hydraulic oil promotion of the second hydraulic fluid port, and has between bumper post and closing chamber
Gap is to reduce piston movement speed.
In a preferred embodiment of the present invention, the quantity of the oil outlet is 2.
In a preferred embodiment of the present invention, the piston and cylinder interior are equipped with the first seal assembly and the second sealing
Component, first seal assembly are located at high pressure chest side, and second seal assembly is set to piston one end.
In a preferred embodiment of the present invention, first seal assembly includes being set gradually from left to right on cylinder body
The first guide ring, bar sealing ring and bumper ring.
In a preferred embodiment of the present invention, it includes being set to piston that second seal assembly, which includes the second seal assembly,
On the second guide ring and hole sealing ring.
The beneficial effects of the present invention are: pressurizing cylinder of the present invention, can reduce test period, meet test demand, structure
Simply, long service life.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of pressurizing cylinder of the present invention；
Fig. 2 is another working state schematic representation of pressurizing cylinder shown in Fig. 1；
Fig. 3 is the partial structural diagram of pressurizing cylinder shown in Fig. 1；
Fig. 4 is the partial structural diagram of pressurizing cylinder shown in Fig. 1；
Fig. 5 is the partial structural diagram of pressurizing cylinder shown in Fig. 1；
The components in the drawings are labeled as follows: 1, cylinder body, 2, piston, 3, low pressure chamber, 4, high pressure chest, the 5, first hydraulic fluid port, 6,
Oil outlet, the 7, first contact surface, the 8, second contact surface, the 9, second hydraulic fluid port, 10, third contact surface, 11, closing chamber, 12, buffering
Column, the 13, first seal assembly, the 14, second seal assembly, the 131, first guide ring, 132, bar sealing ring, 133, bumper ring,
141, the second guide ring, 142, hole sealing ring.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, a kind of pressurizing cylinder, including cylinder body 1, it is equipped with piston 2 in cylinder body 1, piston 2 is by 1 inner part of cylinder body
It is segmented into low pressure chamber 3 and high pressure chest 4, forms sealing structure between cylinder body 1, piston 2, low pressure chamber 3 and high pressure chest 4, cylinder body 1 is equipped with
The first hydraulic fluid port 5 being connected to low pressure chamber 3 and 2 oil outlets 6 being connected to high pressure chest 4,5 oil inlet of the first hydraulic fluid port push piston 2
Movement makes it that the oil liquid in high pressure chest 4 be pushed to form high pressure from oil outlet outflow.
In addition, the contact surface of the hydraulic oil in piston 2 and low pressure chamber 3 is the first contact surface 7, in piston 2 and high pressure chest 4
The contact surface of hydraulic oil is the second contact surface 8, and the area A1 of the first contact surface 7 is greater than the area A2 of the second contact surface 8.First connects
The area of contacting surface 7 is 3 times of the area of the second contact surface 8, and the pressure of the hydraulic oil of oil outlet 6 is the hydraulic oil of the first hydraulic fluid port 5
3 times of pressure.
In addition, being additionally provided with the second hydraulic fluid port 9 on cylinder body 1, the second hydraulic fluid port 9 enters hydraulic oil and the movement of piston 2 is pushed to make its promotion
Hydraulic oil oil return in low pressure chamber 3.The contact surface for the hydraulic oil that piston 2 and the second hydraulic fluid port 9 enter is third contact surface 10, third
Area of the area of contact surface 10 less than the first contact surface 7.
In addition, being equipped with closing chamber 11 in low pressure chamber 3, piston 2 is equipped with bumper post 12, and piston 2 is hydraulic by the second hydraulic fluid port
Oil, which pushes, enters bumper post in closing chamber 11, and has gap to reduce piston motion between bumper post 12 and closing chamber 11
Speed.
In addition, being equipped with the first seal assembly 13 and the second seal assembly 14, the first seal assembly inside piston 2 and cylinder body 1
13 are located at 4 side of high pressure chest, and the second seal assembly 14 is set to 2 one end of piston.First seal assembly 13 includes from left to right successively
The first guide ring 131, bar sealing ring 132 and bumper ring 133 on cylinder body are set.Second seal assembly 14 includes second close
Sealing assembly includes the second guide ring 141 and hole sealing ring 142 on piston.
The specific working principle is as follows for the utility model pressurizing cylinder: hydraulic oil is transported to the first hydraulic fluid port 5 and pushed by hydraulic pump
Piston 2 moves right, and the oil liquid of high pressure chest 4 is pushed by piston to be formed high pressure and flow out from two oil outlets 6, locking according to Paasche
Rule, the pressure being applied on enclosed liquid are transmitted to all directions not to bate a jot of one's demandsly, act on the equal P1 of power at each position
× A1=P2 × A2=P3 × A3, so P2=3P1, as long as P1=25MPa, P3=75MPa reaches the high pressure of experiment demand.A1=
13266.5 square millimeters, A3=9420 square millimeter, A2=4415 square millimeter.When 9 oil inlet of the second hydraulic fluid port, 5 oil return of the first hydraulic fluid port
When can ceaselessly hit the left side gland of cylinder body, when the bumper post 12 on piston 2 enters closing chamber 11, hydraulic oil cannot be smooth
Oil return can only carry out oil return by the gap between bumper post 12 and closing chamber 11, and the pressure in such closing chamber 11 can be rapid
It gets higher, slows down the movement velocity of piston, realize buffering effect.
It being different from the prior art, pressurizing cylinder of the present invention can reduce test period, meet test demand, and structure is simple,
Long service life.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (9)
1. a kind of pressurizing cylinder, which is characterized in that including cylinder body, be equipped with piston in the cylinder body, the piston is by cylinder interior
It is divided into low pressure chamber and high pressure chest, forms sealing structure between the cylinder body, piston, low pressure chamber and high pressure chest, on the cylinder body
Equipped with the first hydraulic fluid port being connected to low pressure chamber and the multiple oil outlets being connected to high pressure chest, the first hydraulic fluid port oil inlet, which pushes, lives
Plug movement makes it push the oil liquid in high pressure chest to be pushed by piston to form high pressure and flow out from oil outlet, is equipped in the low pressure chamber
Closing chamber, the piston are equipped with bumper post, and the piston is made bumper post enter closing chamber by the hydraulic oil promotion of the second hydraulic fluid port
It is interior, and have gap to reduce piston movement speed between bumper post and closing chamber.
2. pressurizing cylinder according to claim 1, which is characterized in that the contact of the piston and the hydraulic oil in low pressure chamber
Face is the first contact surface, and the contact surface of the hydraulic oil in piston and high pressure chest is the second contact surface, the face of first contact surface
Product is greater than the area of the second contact surface.
3. pressurizing cylinder according to claim 2, which is characterized in that the area of first contact surface is the second contact surface
3 times of area, the pressure of the hydraulic oil of the oil outlet is 3 times of the hydraulic oil pressure of the first hydraulic fluid port.
4. pressurizing cylinder according to claim 2, which is characterized in that it is additionally provided with the second hydraulic fluid port on the cylinder body, described
Two hydraulic fluid ports enter hydraulic oil and push piston motion that it is made to push the hydraulic oil oil return in low pressure chamber.
5. pressurizing cylinder according to claim 4, which is characterized in that the hydraulic oil that the piston and the second hydraulic fluid port enter
Contact surface is third contact surface, the area of the area of the third contact surface less than the first contact surface.
6. -5 any pressurizing cylinder according to claim 1, which is characterized in that the quantity of the oil outlet is 2.
7. pressurizing cylinder according to claim 6, which is characterized in that the piston and cylinder interior are equipped with the first sealing group
Part and the second seal assembly, first seal assembly are located at high pressure chest side, and second seal assembly is set to piston one end.
8. pressurizing cylinder according to claim 7, which is characterized in that first seal assembly includes from left to right successively
The first guide ring, bar sealing ring and bumper ring on cylinder body are set.
9. pressurizing cylinder according to claim 7, which is characterized in that second seal assembly includes being set on piston
Second guide ring and hole sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196003.0A CN106837921B (en) | 2017-03-29 | 2017-03-29 | Pressurizing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196003.0A CN106837921B (en) | 2017-03-29 | 2017-03-29 | Pressurizing cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837921A CN106837921A (en) | 2017-06-13 |
| CN106837921B true CN106837921B (en) | 2019-01-18 |
Family
ID=59141038
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196003.0A Active CN106837921B (en) | 2017-03-29 | 2017-03-29 | Pressurizing cylinder |
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| Country | Link |
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| CN (1) | CN106837921B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799141B (en) * | 2018-05-08 | 2021-08-27 | 中国石油天然气股份有限公司 | Supercharging device and pressure test system |
| CN109505821B (en) * | 2018-12-29 | 2024-07-26 | 宁波市海达塑料机械有限公司 | Supercharging oil cylinder capable of displaying piston stroke |
| CN114060349A (en) * | 2021-12-02 | 2022-02-18 | 杭州富阳诺德液压技术有限公司 | Portable oil pipe blockage breaking device and working method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3033739A1 (en) * | 1980-09-08 | 1982-04-15 | Aviatest GmbH, 4000 Düsseldorf | Pressure booster for high pressure generator - has pressure switches for low pressure fluid feed, actuated by low pressure piston |
| CN2401721Y (en) * | 1999-12-07 | 2000-10-18 | 袁人枢 | Same-phase ultrahigh pressure liquid pressure-booster |
| DE10158178C1 (en) * | 2001-11-28 | 2003-07-17 | Minibooster Hydraulics As Soen | Hydraulic pressure booster |
| CN100520086C (en) * | 2007-05-25 | 2009-07-29 | 无锡市拓发自控设备有限公司 | Gas-liquid conversion pressurizing cylinder |
| CN201991870U (en) * | 2011-03-31 | 2011-09-28 | 安徽山河矿业装备股份有限公司 | Tensioning oil cylinder |
| CN104373395A (en) * | 2013-08-16 | 2015-02-25 | 扬州市飞龙气动液压设备有限公司 | High-pressure oil supercharger for hoist cylinder locking device |
| CN204942154U (en) * | 2015-08-21 | 2016-01-06 | 广东科达洁能股份有限公司 | A kind of pressurizing cylinder of tool New Buffering structure |
| CN207315768U (en) * | 2017-03-29 | 2018-05-04 | 江苏恒立液压股份有限公司 | Pressurizing cylinder |
-
2017
- 2017-03-29 CN CN201710196003.0A patent/CN106837921B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106837921A (en) | 2017-06-13 |
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