CN109989957A - Differential piston combined oil cylinder - Google Patents
Differential piston combined oil cylinder Download PDFInfo
- Publication number
- CN109989957A CN109989957A CN201711483262.8A CN201711483262A CN109989957A CN 109989957 A CN109989957 A CN 109989957A CN 201711483262 A CN201711483262 A CN 201711483262A CN 109989957 A CN109989957 A CN 109989957A
- Authority
- CN
- China
- Prior art keywords
- small
- piston
- oil
- tank
- oil inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
-
- 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
- F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The present invention relates to a kind of differential piston combined oil cylinders comprising large and small oil cylinder, small piston, big piston and piston rod, large and small oil cylinder form the combined oil cylinder of intermediate conjoined structure；The piston rod coaxially traverses among large and small oil cylinder；The small piston is placed among small oil tank, and big piston is placed among large tank and can slide wherein；Large tank lid is tightly connected with large tank bonnet bolt and large tank, and small oil tank lid is tightly connected with small oil tank bonnet bolt and small oil tank；Small piston oil inlet armatine is covered positioned at small oil tank, and big piston oil inlet second is covered positioned at large tank, small piston oil inlet second and big piston oil inlet armatine are all located among combined oil cylinder on disjunctor, and small piston oil inlet second connects small oil tank, and big piston oil inlet armatine connects large tank, small piston oil inlet second and big piston oil inlet armatine are not communicated with.The present invention can provide different strength and speed, meet the different demands of engineering technology, to reach accurate control.
Description
Technical field
The invention belongs to oil cylinder field, specifically a kind of differential piston combined oil cylinder.
Background technique
It is hydraulic to be easy to transmit and configure since its transmission force is big, it is extensive in industry, civilian industrial application.Turn with machinery
Dynamic, Electrified Transmission is compared, and hydraulic drive has the advantage that hydraulicdriven various elements, can according to need conveniently, flexibly
Ground is arranged；It is light-weight, small in size, motional inertia is small, reaction speed is fast；Manipulation and control is convenient, it can be achieved that electrodeless on a large scale
Speed regulation；Overload protection can be realized automatically.
Cylinder system generally uses mineral oil as working media, relative motion face can lubricating by oneself, service life
It is long, it is easy to realize the automation of linear motion and machine.After use is electro-hydraulic to be jointly controlled, higher degree can be not only realized
Automatic control process, and may be implemented to be remotely controlled.Since hydraulic technique is there are many prominent advantage, from it is civilian to national defence, by one
As be transferred to the very high control system of accuracy, all have been widely used, prospect is very bright.But sealing problem is
Its main problem that must be solved.
It is hydraulic since its transmission force is big, be easy to transmit and configure, configuration technology is one and gets a good eye content problems, is
The needs for meeting engineering technology, have the combination of control valve also to have the combination of different-diameter piston.
Summary of the invention
In order to solve above-mentioned main problem, a kind of differential piston combined oil cylinder of the present invention, thus provide different strength and
Speed meets the different demands of engineering technology, reaches accurate control.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of differential piston combined oil cylinder, including large and small oil cylinder, small piston, big piston and piston rod, during large and small oil cylinder is formed
Between conjoined structure combined oil cylinder；The piston rod coaxially traverses among large and small oil cylinder；The small piston is placed in small oil tank
Among, and big piston is placed among large tank and can slide wherein；Large tank lid is sealed with large tank bonnet bolt and large tank
Connection, and small oil tank lid is tightly connected with small oil tank bonnet bolt and small oil tank；Small piston oil inlet armatine is covered positioned at small oil tank, and
Big piston oil inlet second is covered positioned at large tank, and small piston oil inlet second and big piston oil inlet armatine are all located among combined oil cylinder
On disjunctor, and small piston oil inlet second connects small oil tank, and big piston oil inlet armatine connects large tank, small piston oil inlet second
It is not communicated with big piston oil inlet armatine.
Known according to hydraulic formula: F=PS, Q=VS, wherein P- indicates that oil pressure, S- indicate piston area, and F- indicates thrust, V-
Indicate piston speed, Q- fuel delivery, F=PS；It illustrates that under the premise of oil pressure is certain, piston thrust size and piston area are just
It is related；It illustrates that under the premise of fuel delivery is certain, piston speed and piston area are negatively correlated.
The present invention configures the piston of different-diameter and is adapted to corresponding control valve, to obtain on same root piston rod
Different strength and speed reaches accurate control to meet the different demands of engineering technology.
Detailed description of the invention
Fig. 1 is scheme of erection of the invention；
Wherein: small piston 1, big piston 2, piston rod 3, small piston oil inlet armatine 4, small piston oil inlet second 5, big piston oil inlet
First 6, big piston oil inlet second 7, large tank lid 8, large tank bonnet bolt 9, combined oil cylinder 10, small oil tank lid 11, small oil tank lid spiral shell
Bolt 12.
Specific embodiment
To drawings and examples are closed, the present invention is further illustrated below.
Embodiment: referring to attached drawing 1, the present invention relates to a kind of differential piston combined oil cylinder, including large and small oil cylinder, small pistons
(1), big piston (2) and piston rod (3), large and small oil cylinder form the combined oil cylinder 10 of intermediate conjoined structure.
Referring to attached drawing 1, in the present embodiment, a piston rod 3 is coaxially traversed among the big small oil tank of combined oil cylinder 10,
Small piston 1 and big piston 2 are all fixedly connected with piston rod 3, and small piston 1 is placed among small oil tank, and big piston 2 is placed in big oil
It can slide among cylinder and wherein；Combined oil cylinder 10 is intermediate conjoined structure, and large tank lid 8 is with large tank bonnet bolt 9 and big oil
Cylinder is tightly connected, and small oil tank lid 11 is tightly connected with small oil tank bonnet bolt 12 and small oil tank；Small piston oil inlet armatine 4 is located at small
On oil cylinder cover 11, and big piston oil inlet second 7 is located on large tank lid 8；Small piston oil inlet second 5 and big piston oil inlet armatine 6
It is all located on the intermediate disjunctor of combined oil cylinder 10, and small piston oil inlet second 5 connects small oil tank, and big piston oil inlet armatine is connected
Large tank, small piston oil inlet second 5 and big piston oil inlet armatine 6 are not communicated with.
Small piston 1 and big 2 course of work of piston in the present invention: different according to oil inlet situation, there are several types of independent works
Make, resultant force works in the same direction, and poor power work, can obtain different strength and speed in the same direction.
Claims (1)
1. a kind of differential piston combined oil cylinder, including large and small oil cylinder, it is characterised in that: be equipped with small piston (1), big piston (2) and
Piston rod (3), large and small oil cylinder form the combined oil cylinder of intermediate conjoined structure；The piston rod (3) is coaxially traversed in large and small
Among oil cylinder；The small piston (1) is placed among small oil tank, and big piston (2) is placed among large tank and can slide wherein；
Large tank lid (8) is tightly connected with large tank bonnet bolt (9) and large tank, and small oil tank lid (11) is with small oil tank bonnet bolt (12)
It is tightly connected with small oil tank；Small piston oil inlet armatine (4) is located on small oil tank lid (11), and big piston oil inlet second (7) is located at
On large tank lid (8), small piston oil inlet second (5) and big piston oil inlet armatine (6) are all located at the intermediate disjunctor of combined oil cylinder (10)
On, and small piston oil inlet second (5) connects small oil tank, and big piston oil inlet armatine connects large tank, small piston oil inlet second
(5) it is not communicated with big piston oil inlet armatine (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483262.8A CN109989957A (en) | 2017-12-29 | 2017-12-29 | Differential piston combined oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483262.8A CN109989957A (en) | 2017-12-29 | 2017-12-29 | Differential piston combined oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989957A true CN109989957A (en) | 2019-07-09 |
Family
ID=67110545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711483262.8A Pending CN109989957A (en) | 2017-12-29 | 2017-12-29 | Differential piston combined oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700695A (en) * | 2021-08-13 | 2021-11-26 | 中国煤炭科工集团太原研究院有限公司 | Power transmission device for different media and use method |
-
2017
- 2017-12-29 CN CN201711483262.8A patent/CN109989957A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700695A (en) * | 2021-08-13 | 2021-11-26 | 中国煤炭科工集团太原研究院有限公司 | Power transmission device for different media and use method |
| CN113700695B (en) * | 2021-08-13 | 2023-09-08 | 中国煤炭科工集团太原研究院有限公司 | Power transmission device for different mediums and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190709 |