CN108488148A - A kind of hydraulic cylinder drive system - Google Patents
A kind of hydraulic cylinder drive system Download PDFInfo
- Publication number
- CN108488148A CN108488148A CN201810366835.7A CN201810366835A CN108488148A CN 108488148 A CN108488148 A CN 108488148A CN 201810366835 A CN201810366835 A CN 201810366835A CN 108488148 A CN108488148 A CN 108488148A
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic cylinder
- actuator port
- connect
- reversal
- 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
- 239000003921 oil Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic cylinder drive systems, including hydraulic pump, control valve, hydraulic cylinder, the first reversal valve, logical valve, the second reversal valve and shuttle valve.The oil outlet of hydraulic pump and the oil inlet of control valve connect；One actuator port of control valve is connect with an actuator port of the first reversal valve, another actuator port of control valve and the rodless cavity of hydraulic cylinder connect, another actuator port of the first reversal valve and the rod chamber of hydraulic cylinder connect；One actuator port of logical valve and the rod chamber of hydraulic cylinder connect, another actuator port of logical valve and the rodless cavity of hydraulic cylinder, the control port of logical valve is connect with an actuator port of the second reversal valve, another actuator port of second reversal valve and the oil outlet of shuttle valve connect, one oil inlet of shuttle valve and the rod chamber of hydraulic cylinder connect, another oil inlet of shuttle valve and the rodless cavity of hydraulic cylinder connect.The present invention can realize the differential connection of hydraulic cylinder, to the running speed of lifting hydraulic cylinder.
Description
Technical field
The present invention relates to horizontal directional drilling machine manufacturing field, more particularly to a kind of hydraulic cylinder drive system.
Background technology
Hydraulic cylinder drive system is widely used in engineering machinery field.Fig. 1 shows a kind of typical case in the prior art
Hydraulic cylinder drive system, as shown in Figure 1 comprising pass through the hydraulic pump 101, control valve 102 and hydraulic cylinder of oil circuit connection
103.Its course of work is as follows：Hydraulic pump 101 is opened, for hydraulic pump 101 to 102 pressure oil output of control valve, 102 valve of control valve is logical
Flow, direction and pressure that control is input to the pressure oil of hydraulic cylinder 103 are crossed, so that hydraulic cylinder 103 is dynamic by pre-provisioning request
Make.
There are following defects for hydraulic cylinder drive system in the prior art：Differential connection is not implemented (i.e. in hydraulic cylinder：Hydraulic pressure
Pressure oil in the rod chamber of cylinder can not be back to rodless cavity), therefore hydraulic cylinder is difficult to realize run at high speed, and eventually leads to hydraulic pressure
Hydraulic oil cylinder driving systematic difference is limited.
Invention content
In order to solve the above technical problems, the present invention proposes a kind of hydraulic cylinder drive system, its technical solution is as follows：
A kind of hydraulic cylinder drive system comprising hydraulic pump, control valve, hydraulic cylinder, the first reversal valve, logical valve,
Two reversal valves and shuttle valve, wherein：
The oil outlet of the hydraulic pump is connect with the oil inlet of the control valve；
One actuator port of the control valve is connect with an actuator port of first reversal valve, the control valve
Another actuator port connect with the rodless cavity of the hydraulic cylinder, another actuator port of first reversal valve with it is described
The rod chamber of hydraulic cylinder connects；
One work of one actuator port of the logical valve and the rod chamber of the hydraulic cylinder and first reversal valve
Make hydraulic fluid port connection, another actuator port of the logical valve and another of the rodless cavity of the hydraulic cylinder and the control valve
Actuator port connects, and the control port of the logical valve is connect with an actuator port of second reversal valve, and described second
Another actuator port of reversal valve is connect with the oil outlet of the shuttle valve, an oil inlet and the hydraulic cylinder of the shuttle valve
Rod chamber connection, another oil inlet of the shuttle valve connect with the rodless cavity of the hydraulic cylinder.
Compared with prior art, hydraulic cylinder drive system proposed by the present invention, can realize the differential connection of hydraulic cylinder,
To the running speed of lifting hydraulic cylinder, the final working efficiency for promoting hydraulic system.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needing to make described in below embodiment being described
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings
Attached drawing.Wherein：
Fig. 1 is the structural schematic diagram of hydraulic cylinder drive system in the prior art；
Fig. 2 is the structural schematic diagram of the hydraulic cylinder drive system of the present invention.
Fig. 1 to Fig. 2 includes：Hydraulic pump 201, control valve 202, hydraulic cylinder 203, the first reversal valve 204, logical valve 205,
Second reversal valve 206, shuttle valve 207.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Fig. 2, hydraulic cylinder drive system provided by the invention includes hydraulic pump 201, control valve 202, hydraulic cylinder
203, the first reversal valve 204, logical valve 205, the second reversal valve 206 and shuttle valve 207.Wherein：
The oil outlet of the hydraulic pump 201 is connect with the oil inlet of the control valve 202.
One actuator port of the control valve 202 is connect with an actuator port of first reversal valve 204, described
Another actuator port of control valve 202 is connect with the rodless cavity of the hydraulic cylinder 203, first reversal valve 204 it is another
A actuator port is connect with the rod chamber of the hydraulic cylinder 203.
One actuator port of the logical valve 205 and the rod chamber of the hydraulic cylinder 203 and first reversal valve 204
The connection of one actuator port, another actuator port of the logical valve 205 and the rodless cavity of the hydraulic cylinder 203 and
Another described actuator port of the control valve 202 connects, the control port of the logical valve 205 and second reversal valve
206 actuator port connection, the oil outlet of another actuator port and the shuttle valve 207 of second reversal valve 206
Connection, an oil inlet of the shuttle valve 207 connect with the rod chamber of the hydraulic cylinder 203, the shuttle valve 207 another into
Hydraulic fluid port is connect with the rodless cavity of the hydraulic cylinder 203.
The operation principle of hydraulic cylinder drive system provided by the invention is as follows：
Operating mode at a slow speed：Operating mode at a slow speed described herein refers to that the running speed of hydraulic cylinder 203 is pre- without requiring more than
Definite value.Under the pattern, first reversal valve, 204 and second reversal valve 205 is maintained at conduction position, and hydraulic pump 201 is to control
202 pressure oil output of valve.Under the pattern, the sub-fraction in pressure oil in the rod chamber of hydraulic cylinder 203 can be through the shuttle
Valve 207, second reversal valve 205 enter in the control chamber of the logical valve 205, and the control chamber of the logical valve 205 is received
To pressure signal, to control the partition of its two actuator port.
At this point, the pressure oil warp rod chamber of hydraulic cylinder 203 in similar with hydraulic cylinder drive system in the prior art
First reversal valve 204 is back in the control valve 202, and can not be directly entered the rodless cavity of hydraulic cylinder 203.Therefore,
At a slow speed under operating mode, differential connection is not implemented in hydraulic cylinder 203.
Rapid operation mode：It is predetermined that operating mode at a slow speed described herein refers to that the running speed of hydraulic cylinder 203 requires more than
Value.Under the pattern, first reversal valve 204 and second reversal valve 205 commutation are to open position, and hydraulic pump 201 is to control
202 pressure oil output of valve processed.Under the pattern, pressure oil in the rod chamber of hydraulic cylinder 203 can not be through the shuttle valve 207, described
Second reversal valve 205 enters in the control chamber of the logical valve 205, and the control chamber of the logical valve 205 does not arrive pressure signal,
To control the conducting of its two actuator port.
At this point, the pressure oil in the rod chamber of hydraulic cylinder 203 is back to rodless cavity through the logical valve 205, to realize
The differential connection of hydraulic cylinder 203, to ensure that hydraulic cylinder 203 can be maintained at quick motion state.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields
Personnel are it should be understood that the description in embodiment is only exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change should all belong to the scope of protection of the present invention.Scope of the present invention is by the power
What sharp claim was defined, rather than limited by the foregoing description in embodiment.
Claims (1)
1. a kind of hydraulic cylinder drive system, which is characterized in that it includes hydraulic pump (201), control valve (202), hydraulic cylinder
(203), the first reversal valve (204), logical valve (205), the second reversal valve (206) and shuttle valve (207), wherein：
The oil outlet of the hydraulic pump (201) is connect with the oil inlet of the control valve (202)；
One actuator port of the control valve (202) is connect with an actuator port of first reversal valve (204), described
Another actuator port of control valve (202) is connect with the rodless cavity of the hydraulic cylinder (203), first reversal valve (204)
Another actuator port connect with the rod chamber of the hydraulic cylinder (203)；
One actuator port of the logical valve (205) and the rod chamber of the hydraulic cylinder (203) and first reversal valve
(204) one actuator port connection, another actuator port and the hydraulic cylinder (203) of the logical valve (205)
Rodless cavity and the control valve (202) another described actuator port connection, the control port of the logical valve (205) with
One actuator port of second reversal valve (206) connects, another actuator port of second reversal valve (206) and institute
The oil outlet connection of shuttle valve (207) is stated, an oil inlet of the shuttle valve (207) connects with the rod chamber of the hydraulic cylinder (203)
It connects, another oil inlet of the shuttle valve (207) is connect with the rodless cavity of the hydraulic cylinder (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366835.7A CN108488148A (en) | 2018-04-23 | 2018-04-23 | A kind of hydraulic cylinder drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366835.7A CN108488148A (en) | 2018-04-23 | 2018-04-23 | A kind of hydraulic cylinder drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108488148A true CN108488148A (en) | 2018-09-04 |
Family
ID=63313833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810366835.7A Pending CN108488148A (en) | 2018-04-23 | 2018-04-23 | A kind of hydraulic cylinder drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108488148A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307196A (en) * | 2019-07-29 | 2019-10-08 | 中国铁建重工集团股份有限公司 | Horizontal coring drilling machine and propelling hydraulic system thereof |
| CN113482980A (en) * | 2021-06-29 | 2021-10-08 | 广州宝力特液压技术有限公司 | Differential circuit of opening and closing mold of tire vulcanizer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301552Y (en) * | 1997-04-04 | 1998-12-23 | 龚欣 | Double differential hydro-cylinder high-speed hydraulic press |
| JP2005207507A (en) * | 2004-01-22 | 2005-08-04 | Yanmar Co Ltd | Cylinder control circuit |
| CN206708123U (en) * | 2017-03-24 | 2017-12-05 | 潍柴动力股份有限公司 | A kind of hydrostatic drive system and harvesting apparatus |
| CN206889380U (en) * | 2017-05-19 | 2018-01-16 | 广东伊之密高速包装***有限公司 | Strengthen the hydraulic circuit of locked mode reliability |
| CN208236817U (en) * | 2018-04-23 | 2018-12-14 | 江苏谷登工程机械装备有限公司 | A kind of hydraulic cylinder drive system |
-
2018
- 2018-04-23 CN CN201810366835.7A patent/CN108488148A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301552Y (en) * | 1997-04-04 | 1998-12-23 | 龚欣 | Double differential hydro-cylinder high-speed hydraulic press |
| JP2005207507A (en) * | 2004-01-22 | 2005-08-04 | Yanmar Co Ltd | Cylinder control circuit |
| CN206708123U (en) * | 2017-03-24 | 2017-12-05 | 潍柴动力股份有限公司 | A kind of hydrostatic drive system and harvesting apparatus |
| CN206889380U (en) * | 2017-05-19 | 2018-01-16 | 广东伊之密高速包装***有限公司 | Strengthen the hydraulic circuit of locked mode reliability |
| CN208236817U (en) * | 2018-04-23 | 2018-12-14 | 江苏谷登工程机械装备有限公司 | A kind of hydraulic cylinder drive system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307196A (en) * | 2019-07-29 | 2019-10-08 | 中国铁建重工集团股份有限公司 | Horizontal coring drilling machine and propelling hydraulic system thereof |
| CN113482980A (en) * | 2021-06-29 | 2021-10-08 | 广州宝力特液压技术有限公司 | Differential circuit of opening and closing mold of tire vulcanizer |
| CN113482980B (en) * | 2021-06-29 | 2024-02-13 | 广州宝力特液压技术有限公司 | Mold opening and closing differential circuit of tire vulcanizer |
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