CN107288943A - A kind of hydraulic actuating mechanism of automatic reverse - Google Patents
A kind of hydraulic actuating mechanism of automatic reverse Download PDFInfo
- Publication number
- CN107288943A CN107288943A CN201710627473.8A CN201710627473A CN107288943A CN 107288943 A CN107288943 A CN 107288943A CN 201710627473 A CN201710627473 A CN 201710627473A CN 107288943 A CN107288943 A CN 107288943A
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- China
- Prior art keywords
- pressure fluid
- low
- valve
- piston
- valve seat
- 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
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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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the 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
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic actuating mechanism of automatic reverse, it includes piston, reversal valve and reciprocable valve, the reversal valve includes reversing valve core, two states in the reversing valve core energy left and right are movably arranged in commutation valve seat, the reversing valve core connects piston rod, the piston is installed on the piston rod, the reciprocable valve includes the reciprocal valve element that centre offers center flow channels, two states in the reciprocal valve element energy left and right are movably arranged in reciprocal valve seat, the first high pressure fluid channel being connected respectively with the side cavity of piston two is provided between the commutation valve seat and the reciprocal valve seat, second high pressure fluid channel, first low pressure fluid passage and the second low pressure fluid passage, first low pressure fluid passage and the second low pressure fluid passage are connected with pump.The hydraulic actuating mechanism of above-mentioned automatic reverse can not only use fluid self power to realize fluid automatic reverse；And fault rate is low, use cost is low, simplifies executing agency.
Description
Technical field
The present invention relates to a kind of executing agency, fluid automatic reverse is realized using fluid self power more particularly, to one kind
Hydraulic actuating mechanism.
Background technology
At present, hydraulic actuating mechanism is realizing that fluid reversing is required to set magnetic valve or hand-operated valve in power end, this
Mode has the disadvantage that during actual utilization：1) fluid reversing speed is slow, causes the reciprocating motion speed of executing agency
Spend slower, inefficiency；2) fault rate is higher；3) fluid needs largely to be back in pump, higher to the cooling requirements of pump.
The content of the invention
It is an object of the invention to provide a kind of hydraulic actuating mechanism of automatic reverse, to solve prior art fluid execution
The above mentioned problem that mechanism is present.
For up to this purpose, the present invention uses following technical scheme：
A kind of hydraulic actuating mechanism of automatic reverse, it includes piston, reversal valve and reciprocable valve, wherein, the reversal valve
Including reversing valve core, two convex shoulders are arranged at intervals with the reversing valve core, its two state in energy left and right is movably arranged at
Commutate in valve seat, the high-pressure fluid import connected with exterior line, the reversing valve core connection are offered on the commutation valve seat
Piston rod, the piston is installed on the piston rod, and the reciprocable valve includes the reciprocal valve element that centre offers center flow channels,
Four convex shoulders are arranged at intervals with the reciprocal valve element, its two state in energy left and right is movably arranged in reciprocal valve seat, institute
State and low-pressure fluid import offered on reciprocal valve seat, be provided between the commutation valve seat and the reciprocal valve seat respectively with piston
The first high pressure fluid channel, the second high pressure fluid channel, the first low pressure fluid passage and the second low pressure that two side cavities are connected
Fluid passage, first high pressure fluid channel and the second high pressure fluid channel are selected one and opened or closed, i.e. the first high-pressure fluid
Passage is opened, then the second high pressure fluid channel is closed, and the first high pressure fluid channel is closed, then the second high pressure fluid channel is opened,
First low pressure fluid passage and the second low pressure fluid passage are connected with pump.
Especially, first high pressure fluid channel by high-pressure fluid import, the first high-pressure fluid import, center flow channels and
First fluid pipeline is constituted, and the reciprocal valve seat is connected by the first fluid pipeline with the leftward space of the piston.
Especially, second high pressure fluid channel is by high-pressure fluid import, the second high-pressure fluid import and second fluid
Pipeline is constituted, and the reciprocal valve seat is connected by the second fluid pipeline with the rightward space of the piston.
Especially, first low pressure fluid passage flows out passage by first fluid pipeline, center flow channels and low-pressure fluid
Composition, the low-pressure fluid outflow passage is connected with pump.
Especially, second low pressure fluid passage is by second fluid pipeline, the second low-pressure fluid import and low-pressure fluid
Flow pass is constituted.
Beneficial effects of the present invention are that the hydraulic actuating mechanism of the automatic reverse is that fluid is held compared with prior art
Row mechanism realizes fluid automatic reverse during moving back and forth using fluid self power, without install magnetic valve or manually
Valve, can accelerate the reciprocating motion speed of executing agency by installing this valve body in executing agency, improve operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the hydraulic actuating mechanism for the automatic reverse that the specific embodiment of the invention 1 is provided.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1, Fig. 1 is the hydraulic actuating mechanism for the automatic reverse that the specific embodiment of the invention 1 is provided
Structural representation.In the present embodiment, a kind of hydraulic actuating mechanism of automatic reverse includes piston 1, reversal valve 2 and reciprocable valve 3, institute
Stating reversal valve 2 includes being arranged at intervals with two convex shoulders 4, institute on commutation valve seat 20 and reversing valve core 21, the reversing valve core 21
State reversing valve core 21 can two states in left and right be movably arranged in the commutation valve seat 20, the reversing valve core 21 connects piston
Bar 5, the piston 1 is installed on the piston rod 5, and the reciprocable valve 3 includes reciprocal valve seat 30 and reciprocal valve element 31, described past
Be arranged at intervals with four convex shoulders 4 on multiple valve element 31, the reciprocal valve element 31 can two states in left and right be movably arranged at it is described
In reciprocal valve seat 30, and the center of the reciprocal valve element 31 is provided with center flow channels 32.It is described commutation valve seat 20 with it is described past
The first high pressure fluid channel being connected respectively with the left and right sides chamber of piston 1, the second high-pressure spray are provided between multiple valve seat 30
Body passage, the first low pressure fluid passage and the second low pressure fluid passage, first high pressure fluid channel and the second high-pressure fluid
Passage is selected one and opened or closed, i.e. the first high pressure fluid channel is opened, then the second high pressure fluid channel is closed, the first high-pressure fluid
Passage is closed, then the second high pressure fluid channel is opened, first low pressure fluid passage and the second low pressure fluid passage and pump phase
Connection.
First high pressure fluid channel is by high-pressure fluid import 6, the first high-pressure fluid import 7, center flow channels 32 and
One fluid circuit 8 is constituted, and the reciprocal valve seat 30 is connected by the first fluid pipeline 8 with the leftward space of the piston 1.
Second high pressure fluid channel is made up of high-pressure fluid import 6, the second high-pressure fluid import 9 and second fluid pipeline 10, institute
State second fluid pipeline 10 the reciprocal valve seat 30 is connected with the rightward space of the piston 1.First low-pressure fluid
Passage is made up of first fluid pipeline 8, center flow channels 32 and low-pressure fluid outflow passage 11, and the low-pressure fluid flows out passage 11
It is connected with pump.Second low pressure fluid passage is by second fluid pipeline 10, the second low-pressure fluid import 12 and low-pressure fluid
Flow pass 11 is constituted.
During work, when high-pressure fluid is entered in reversing valve core 21 by high-pressure fluid import 6, if now reversing valve core 21
During in left state, the first high-pressure fluid import 7 is opened, and the second high-pressure fluid import 9 is closed, and high-pressure fluid is high by first
Press fluid inlet 7 enter center flow channels 32, then by first fluid pipeline 8 enter piston 1 left chamber in, promote piston 1 to
Fluid in right motion, the left chamber of piston 1 is passed back into pump through the first low pressure fluid passage, the pole on the right side of the arrival of piston 1
During point, pull reversing valve core 21 to move right, close the first high-pressure fluid import 7, the second high-pressure fluid import 9 is opened, this
When high-pressure fluid can only be entered by the second high-pressure fluid import 9 in reciprocal valve seat 30, and then promote reciprocal valve element 31 to transport to the left
It is dynamic, the chamber that the second high pressure fluid output 9 makes fluid flow on the right side of piston is opened, piston 1 is promoted to left movement, the left side of piston 1
Fluid be back to through second fluid pipeline 10 in pump, when piston 1 reach left side limit when, promote reversing valve core 21 transport to the left
It is dynamic, open the first high-pressure fluid import 7, the second high-pressure fluid import 9 is closed.So complete a motion cycle.
Above example is the general principle and characteristic for elaborating the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and modifications are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (5)
1. a kind of hydraulic actuating mechanism of automatic reverse, it includes piston, reversal valve and reciprocable valve, it is characterised in that described to change
Include being arranged at intervals with two convex shoulders on reversing valve core, the reversing valve core to valve, its two state in energy left and right is movably set
It is placed in commutation valve seat, the high-pressure fluid import connected with exterior line, the reversing valve core is offered on the commutation valve seat
Piston rod is connected, the piston is installed on the piston rod, the reciprocable valve includes centre and offers the reciprocal of center flow channels
Four convex shoulders are arranged at intervals with valve element, the reciprocal valve element, its two state in energy left and right is movably arranged at reciprocal valve seat
It is interior, low-pressure fluid import is offered on the reciprocal valve seat, difference is provided between the commutation valve seat and the reciprocal valve seat
The first high pressure fluid channel for being connected with the side cavity of piston two, the second high pressure fluid channel, the first low pressure fluid passage and
Two low pressure fluid passages, first high pressure fluid channel and the second high pressure fluid channel are selected one and opened or closed, i.e., first is high
Fluid passage is pressed to open, then the second high pressure fluid channel is closed, the first high pressure fluid channel is closed, then the second high pressure fluid channel
Open, first low pressure fluid passage and the second low pressure fluid passage are connected with pump.
2. the hydraulic actuating mechanism of automatic reverse according to claim 1, it is characterised in that first high-pressure fluid leads to
Road is made up of high-pressure fluid import, the first high-pressure fluid import, center flow channels and first fluid pipeline, the first fluid pipeline
The reciprocal valve seat is connected with the leftward space of the piston.
3. the hydraulic actuating mechanism of automatic reverse according to claim 2, it is characterised in that second high-pressure fluid leads to
Road is made up of high-pressure fluid import, the second high-pressure fluid import and second fluid pipeline, and the second fluid pipeline will be described past
Multiple valve seat is connected with the rightward space of the piston.
4. the hydraulic actuating mechanism of automatic reverse according to claim 3, it is characterised in that first low-pressure fluid leads to
Road is made up of first fluid pipeline, center flow channels and low-pressure fluid outflow passage, and the low-pressure fluid outflow passage is connected with pump
It is logical.
5. the hydraulic actuating mechanism of automatic reverse according to claim 4, it is characterised in that second low-pressure fluid leads to
Road is made up of second fluid pipeline, the second low-pressure fluid import and low-pressure fluid outflow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627473.8A CN107288943A (en) | 2017-07-28 | 2017-07-28 | A kind of hydraulic actuating mechanism of automatic reverse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627473.8A CN107288943A (en) | 2017-07-28 | 2017-07-28 | A kind of hydraulic actuating mechanism of automatic reverse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107288943A true CN107288943A (en) | 2017-10-24 |
Family
ID=60103382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710627473.8A Pending CN107288943A (en) | 2017-07-28 | 2017-07-28 | A kind of hydraulic actuating mechanism of automatic reverse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916656A (en) * | 2018-07-19 | 2018-11-30 | 赵雪虎 | A kind of fluid reversing system based on hydraulic impulse control |
| CN112902548A (en) * | 2019-11-19 | 2021-06-04 | 英业达科技有限公司 | Cooling device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88210099U (en) * | 1988-01-29 | 1988-11-09 | 东北工学院 | Hydraulic vibration exciter |
| CN2073048U (en) * | 1990-08-11 | 1991-03-13 | 天津理工学院 | Automatic reciprocatable liquid-controlled cylinder system |
| CN2195018Y (en) * | 1994-06-30 | 1995-04-19 | 珠海市兰特科技开发公司净化设备厂 | Automatic changeover valve |
| CN104154050A (en) * | 2014-07-29 | 2014-11-19 | 李田生 | Efficient hydraulic rock drill |
| CN104265714A (en) * | 2014-10-09 | 2015-01-07 | 平原机器厂（新乡） | Piston actuator and automatic reversing valve thereof |
| CN105586847A (en) * | 2016-03-04 | 2016-05-18 | 武汉理工大学 | Device for automatically adjusting ground clearance of sucking disc of vacuum sweeper |
| CN107191623A (en) * | 2017-06-14 | 2017-09-22 | 无锡市锡蒙机电科技有限公司 | A kind of automatic reciprocating fluid valve |
-
2017
- 2017-07-28 CN CN201710627473.8A patent/CN107288943A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88210099U (en) * | 1988-01-29 | 1988-11-09 | 东北工学院 | Hydraulic vibration exciter |
| CN2073048U (en) * | 1990-08-11 | 1991-03-13 | 天津理工学院 | Automatic reciprocatable liquid-controlled cylinder system |
| CN2195018Y (en) * | 1994-06-30 | 1995-04-19 | 珠海市兰特科技开发公司净化设备厂 | Automatic changeover valve |
| CN104154050A (en) * | 2014-07-29 | 2014-11-19 | 李田生 | Efficient hydraulic rock drill |
| CN104265714A (en) * | 2014-10-09 | 2015-01-07 | 平原机器厂（新乡） | Piston actuator and automatic reversing valve thereof |
| CN105586847A (en) * | 2016-03-04 | 2016-05-18 | 武汉理工大学 | Device for automatically adjusting ground clearance of sucking disc of vacuum sweeper |
| CN107191623A (en) * | 2017-06-14 | 2017-09-22 | 无锡市锡蒙机电科技有限公司 | A kind of automatic reciprocating fluid valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916656A (en) * | 2018-07-19 | 2018-11-30 | 赵雪虎 | A kind of fluid reversing system based on hydraulic impulse control |
| CN108916656B (en) * | 2018-07-19 | 2020-05-08 | 韶关一本机械设备有限公司 | Fluid reversing system based on hydraulic pulse control |
| CN112902548A (en) * | 2019-11-19 | 2021-06-04 | 英业达科技有限公司 | Cooling device |
| CN112902548B (en) * | 2019-11-19 | 2022-11-04 | 英业达科技有限公司 | Cooling device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |