CN109630488B - Hydraulic execution distributor capable of ensuring synchronization by one push-push multistage - Google Patents
Hydraulic execution distributor capable of ensuring synchronization by one push-push multistage Download PDFInfo
- Publication number
- CN109630488B CN109630488B CN201810741982.8A CN201810741982A CN109630488B CN 109630488 B CN109630488 B CN 109630488B CN 201810741982 A CN201810741982 A CN 201810741982A CN 109630488 B CN109630488 B CN 109630488B
- Authority
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- China
- Prior art keywords
- oil
- equal flow
- hydraulic cylinder
- flow distributor
- hydraulic
- 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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Links
- 239000003921 oil Substances 0.000 claims description 85
- 230000001502 supplementing effect Effects 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 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
- 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
- F15B13/022—Flow-dividers; Priority valves
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A hydraulic execution distributor with one push step for ensuring synchronization, wherein a cylinder barrel I of a first stage of the equal flow distributor is internally provided with a piston rod I; the equal flow distributors are in multiple stages, one distributor supplies oil, and the piston rods of the equal flow distributors push the other distributors to move together, so that the travel strokes of all the equal flow distributors are consistent. The invention utilizes the flow distributor structures and combines with a matched hydraulic control system, can solve a series of complex operation modes such as simultaneous action, single action, combined action and the like of the multi-stage equal flow distributor, and provides a hydraulic execution distribution mode for pushing the multi-stage to ensure synchronization under the condition of uncharged pure manual operation. The hydraulic control system is mainly used for limiting space, and a manual pump controls the distribution form of a plurality of hydraulic cylinders so as to ensure the synchronism of an executing element and meet various requirements of hydraulic control.
Description
Technical Field
The invention relates to the technical field of hydraulic power distribution, in particular to a hydraulic execution distributor with one push-up multistage guaranteed synchronization.
Background
Under the condition of no live working, a manual pump is required to be used as a power source, and the original design schemes for guaranteeing the synchronization of a plurality of oil cylinders are not provided with executability, the flow is discontinuous, no electric control signal feedback exists, and the synchronization of the oil cylinders cannot be realized.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a hydraulic execution distributor with one push-push multistage to ensure synchronization so as to control a hydraulic cylinder to realize synchronization when the hydraulic cylinder needs synchronization.
In order to achieve the purpose, a first cylinder barrel of the first stage of the equal flow distributor is internally provided with a first piston rod; the equal flow distributors are in multiple stages, oil is supplied by one equal flow distributor, and the piston rods of the equal flow distributors push the other equal flow distributors to move together, so that the traveling strokes of all the equal flow distributors are consistent.
The outer end part of the cylinder barrel I of the first stage of the equal flow distributor is provided with a plug I, and the end part of the equal flow distributor of the last stage is provided with a reverse oil supplementing device; the spring sleeve of the reverse oil supplementing device is internally provided with a reset spring, and the outer end part of the spring sleeve is provided with a second plug.
The cylinder barrels of all the equal flow distributors except the first stage are provided with ventilation valves.
The two ends of the inner cavity of the cylinder barrel of the first stage of the equal flow distributor are respectively provided with an oil inlet and an oil outlet, the oil inlet and the oil outlet are respectively arranged on two sides of the piston rod I, and one end of the cylinder barrel of the other equal flow distributors of each stage is provided with an oil outlet.
And the middle part of the equal flow distributor is additionally provided with an oil supplementing port which is communicated with the one-way valves of the equal flow distributors of all levels by adopting an energy accumulator to supplement oil.
The hydraulic control system of the equal flow distributor comprises a manual pump, a manual pump overflow valve, a manual pump unloading valve, an equal flow distributor, an overflow valve, a rotary valve, an energy accumulator, a pressure gauge, a stop valve, a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder, a fourth hydraulic cylinder and a valve block, wherein the rotary valve and the overflow valve are integrally arranged on the valve block; the oil outlets of all levels of cylinder barrels of the equal flow distributor are respectively communicated with the first oil outlet, the second oil outlet, the third oil outlet and the fourth oil outlet through corresponding oil inlets on the valve blocks, and are controlled by corresponding rotary valves, so that hydraulic oil enters into the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder and the fourth hydraulic cylinder, and the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder and the fourth hydraulic cylinder are controlled to act.
Compared with the prior art, the invention can solve a series of complex operation modes such as simultaneous action, single action, combined action and the like of the multi-stage equal-flow distributor by utilizing the flow distributor structures and combining a matched hydraulic control system, and provides a hydraulic execution distribution mode for pushing the multi-stage to ensure synchronization under the condition of uncharged pure manual operation. The hydraulic control system is mainly used for limiting space, and a manual pump controls the distribution form of a plurality of hydraulic cylinders so as to ensure the synchronism of an executing element and meet various requirements of hydraulic control.
Drawings
FIG. 1 is a schematic diagram of an equal flow distributor according to the present invention.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is a schematic diagram of the hydraulic control of the present invention.
Fig. 4 is a block diagram of a control valve of the present invention.
Detailed Description
As shown in fig. 1, 2, 3 and 4, a cylinder barrel I4 of a first stage of the equal flow distributor is internally provided with a piston rod I3; the equal flow distributor is multi-stage, a piston rod II 7 of the second-stage equal flow distributor, a piston rod III 9 of the third-stage equal flow distributor and a piston rod IV 11 of the fourth-stage equal flow distributor are respectively arranged in a corresponding cylinder barrel II 8, a cylinder barrel III 10 and a cylinder barrel IV 12; the outer end part of the first-stage equal flow distributor is provided with a first plug 1, the end part of the last-stage equal flow distributor is provided with a reverse oil supplementing device, a return spring 13 is arranged in a spring sleeve 14 of the reverse oil supplementing device, and the outer end part of the spring sleeve 14 is provided with a second plug 15; the cylinder barrels of all stages of equal flow distributors except the first stage of equal flow distributor are provided with air-permeable valves 6 so as to compensate the balance between the air pressure and the atmospheric pressure of each cavity when each piston rod moves; the two ends of the inner cavity of the cylinder barrel I4 of the first stage of the equal flow distributor are respectively provided with an oil inlet 2 and an oil outlet 5, the oil inlet 2 and the oil outlet 5 are respectively arranged on the two sides of the piston rod I3, and one end of the cylinder barrel of the other equal flow distributors of each stage is provided with the oil outlet 5; an oil supplementing port 16 is additionally arranged in the middle of the equal flow distributor, oil is supplemented by an energy accumulator 23, and the oil supplementing port 16 is communicated with a one-way valve 17 of each level of equal flow distributor.
The hydraulic control system of the equal flow distributor comprises a manual pump 18, a manual pump overflow valve 19, a manual pump unloading valve 20, an equal flow distributor, an overflow valve 21, a rotary valve 22, an energy accumulator 23, a pressure gauge 24, a stop valve 25, a first hydraulic cylinder 26, a second hydraulic cylinder 27, a third hydraulic cylinder 28, a fourth hydraulic cylinder 29 and a valve block 35, wherein the rotary valve 22 and the overflow valve 21 are integrally arranged on the valve block 35, and oil outlets 5 of all levels of cylinder barrels of the equal flow distributor are respectively communicated with the first oil outlet 31, the second oil outlet 32, the third oil outlet 33 and the fourth oil outlet 34 through corresponding oil inlets 30 on the valve block 35. When the manual pump 18 is pressed, the manual pump 18 supplies oil to the oil supplementing port 16 and simultaneously supplies oil to the accumulator 23, when the pressure gauge 24 connected with the accumulator 23 reaches a set pressure value, the stop valve 25 is closed, and the manual pump 18 is continuously pressed, the hydraulic control system supplies oil to the oil inlet 2 of the equal-flow distributor, so that the piston rod I3 of the equal-flow distributor moves, and the piston rod I3 pushes the rest of the piston rods II 7, III 9 and IV 11 to synchronously move together. When the rotary valves 22 are in an open state, hydraulic oil from the oil outlets 5 of all levels of cylinders of the equal flow distributor passes through the corresponding oil inlet I30 on the valve block 35, passes through the corresponding oil outlets I31, II 32, III 33 and IV 34, is controlled by the corresponding rotary valve 22, and enters the hydraulic cylinders I26, II 27, III 28 and IV 29, so that the hydraulic cylinders I26, II 27, III 28 and IV 29 act. When it is necessary to deactivate a certain cylinder, the rotary valve 22 in the valve block 35 is operated to return the oil supplied to the cylinder from the relief valve 21 to the tank, and the remaining cylinders are normally supplied with oil and normally activated. When the hydraulic cylinder is required to continue to act, the rotary valve 22 is opened again, and oil is continuously supplied to the hydraulic cylinder, so that synchronous operation of the hydraulic cylinder is realized. As shown in fig. 3, when the rotary valves 22 are opened, the first hydraulic cylinder 26, the second hydraulic cylinder 27, the third hydraulic cylinder 28 and the fourth hydraulic cylinder 29 operate simultaneously; when the left rotary valve 22 is closed, the first hydraulic cylinder 26 and the second hydraulic cylinder 27 stop oil supply and do not act any more; when the right rotary valve 22 is closed, the third 28 and fourth 29 hydraulic cylinders stop the oil supply and do not act. At this point the manual pump 18 is operated and the oil is returned directly to the tank through the relief valve 21. The invention can realize the actions of extending and retracting the piston rods of the equal flow distributors or can be used in combination, so that a plurality of groups of piston rods extend and retract together to meet the demands of different working conditions. Considering the convenience of operation, the hydraulic control system adopts double-side operation and comprises two manual pumps 18 and two valve blocks 35, wherein each valve block 35 is provided with two rotary valves 22, two overflow valves 21, four first oil inlets 30, four first oil outlets 31, two oil outlets 32, three oil outlets 33 and four oil outlets 34. The operation actions of the hydraulic cylinders can be independently controlled at both sides of the equipment.
The hydraulic oil supply device adopts a push-up structure, one equal flow distributor supplies oil, and the mechanical part pushes the other equal flow distributors to move together, so that the travel stroke of all the equal flow distributors is consistent, the hydraulic oil supplied by the equal flow distributors to each oil cylinder is the same volume, and the travel stroke of each oil cylinder is consistent.
The inner diameter of each cylinder barrel is consistent in size, so that the oil mass and the volume of oil discharged from each cylinder barrel are consistent, the strokes of piston rods are consistent, and the synchronism of equal flow distributors is ensured. When the equal flow distributors decompress, the return spring 13 pushes the piston rod IV 11 to return, and the oil in the oil cylinder returns to the cylinder barrel. In order to solve the problems of oil leakage and the like between each cylinder barrel and the oil cylinder, an oil supplementing port 16 is additionally arranged in the middle of the equal flow distributor, and an accumulator 23 is adopted for supplementing oil.
Claims (1)
1. A push-to-multistage synchronization guaranteed hydraulic actuation dispenser, characterized by: a first cylinder (4) of the first stage of the equal flow distributor is internally provided with a first piston rod (3); the equal flow distributors are in multiple stages, oil is supplied by one equal flow distributor, and meanwhile, the piston rod I (3) of the equal flow distributor pushes the other equal flow distributors to move together, so that the travel strokes of all the equal flow distributors are consistent;
The outer end part of a cylinder barrel I (4) of the first stage of the equal flow distributor is provided with a plug I (1), and the end part of the equal flow distributor of the last stage is provided with a reverse oil supplementing device; a return spring (13) is arranged in a spring sleeve (14) of the reverse oil supplementing device, and a second plug (15) is arranged at the outer end part of the spring sleeve (14);
the cylinder barrels of all stages of equal flow distributors except the first stage of equal flow distributor are provided with air-permeable valves (6);
the two ends of the inner cavity of the cylinder barrel I (4) of the first stage of the equal flow distributor are respectively provided with an oil inlet (2) and an oil outlet (5), the oil inlet (2) and the oil outlet (5) are respectively arranged at two sides of the piston rod I (3), and one end of the cylinder barrel of the other equal flow distributors at all stages is provided with the oil outlet (5);
An oil supplementing port (16) is additionally arranged in the middle of the equal flow distributor, oil is supplemented by an energy accumulator (23), and the oil supplementing port (16) is communicated with a one-way valve (17) of each level of equal flow distributor;
The hydraulic control system of the equal flow distributor comprises a manual pump (18), a manual pump overflow valve (19), a manual pump unloading valve (20), an equal flow distributor, an overflow valve (21), a rotary valve (22), an energy accumulator (23), a pressure gauge (24) and a stop valve (25), a first hydraulic cylinder (26), a second hydraulic cylinder (27), a third hydraulic cylinder (28), a fourth hydraulic cylinder (29) and a valve block (35), wherein the rotary valve (22) and the overflow valve (21) are integrally arranged on the valve block (35); the oil outlets (5) of all levels of cylinder barrels of the equal flow distributor are respectively communicated with the first oil outlet (31), the second oil outlet (32), the third oil outlet (33) and the fourth oil outlet (34) through corresponding oil inlets (30) on a valve block (35), and are controlled by corresponding rotary valves (22), so that hydraulic oil enters into the first hydraulic cylinder (26), the second hydraulic cylinder (27), the third hydraulic cylinder (28) and the fourth hydraulic cylinder (29) to control the first hydraulic cylinder (26), the second hydraulic cylinder (27), the third hydraulic cylinder (28) and the fourth hydraulic cylinder (29) to act;
When a certain hydraulic cylinder is required to be deactivated, a rotary valve (22) in a valve block (35) is operated, so that oil supplied to the hydraulic cylinder is returned to an oil tank through an overflow valve (21), and the rest hydraulic cylinders are normally supplied with oil and normally activated; when the hydraulic cylinder is required to continue to act, the rotary valve (22) is opened again, so that oil is continuously supplied to the hydraulic cylinder, and synchronous operation of the hydraulic cylinder is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741982.8A CN109630488B (en) | 2018-07-09 | 2018-07-09 | Hydraulic execution distributor capable of ensuring synchronization by one push-push multistage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741982.8A CN109630488B (en) | 2018-07-09 | 2018-07-09 | Hydraulic execution distributor capable of ensuring synchronization by one push-push multistage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630488A CN109630488A (en) | 2019-04-16 |
| CN109630488B true CN109630488B (en) | 2024-05-07 |
Family
ID=66066266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810741982.8A Active CN109630488B (en) | 2018-07-09 | 2018-07-09 | Hydraulic execution distributor capable of ensuring synchronization by one push-push multistage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630488B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862041B (en) * | 2019-12-17 | 2023-11-07 | 普罗格智芯科技(湖北)有限公司 | Synchronous hydraulic jacking system, hydraulic lifting system and hydraulic reversing system |
| CN115263850B (en) * | 2022-06-24 | 2024-05-17 | 苏州施米特机械有限公司 | Multistage electrohydraulic servo cylinder |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122414A (en) * | 1994-06-28 | 1996-05-15 | 塞德普鲁公司 | Positive-displacement pump with spool |
| JP2002364604A (en) * | 2001-06-08 | 2002-12-18 | Shinmeiwa Auto Engineering Ltd | Cylinder synchronization device of gate lifter provided with gate sinking prevention mechanism |
| JP2005042932A (en) * | 1994-09-08 | 2005-02-17 | Shin Meiwa Ind Co Ltd | Synchronizer of hydraulic cylinder |
| CN101131168A (en) * | 2006-08-23 | 2008-02-27 | 上海中欧汽车电器有限公司 | Safe double-cylinder hydraulic lifting mechanism with force synchronization in internal follow-up section |
| CN101705951A (en) * | 2009-11-17 | 2010-05-12 | 徐工集团工程机械有限公司 | Self-compensating two-way synchronous reciprocating positioning and contraposition hydraulic system |
| CN201461586U (en) * | 2009-06-30 | 2010-05-12 | 周建新 | Hydraulic quantitative distributor |
| CN201650901U (en) * | 2010-03-29 | 2010-11-24 | 张元杰 | Multi-cylinder synchronous hydraulic control device |
| CN203272335U (en) * | 2013-05-20 | 2013-11-06 | 芜湖市银鸿液压件有限公司 | Synchronization distributor hydraulic cylinder |
| CN208546373U (en) * | 2018-07-09 | 2019-02-26 | 襄阳博亚精工装备股份有限公司 | One pushes away the multistage hydraulic execution distributor for guaranteeing synchronization |
-
2018
- 2018-07-09 CN CN201810741982.8A patent/CN109630488B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122414A (en) * | 1994-06-28 | 1996-05-15 | 塞德普鲁公司 | Positive-displacement pump with spool |
| JP2005042932A (en) * | 1994-09-08 | 2005-02-17 | Shin Meiwa Ind Co Ltd | Synchronizer of hydraulic cylinder |
| JP2002364604A (en) * | 2001-06-08 | 2002-12-18 | Shinmeiwa Auto Engineering Ltd | Cylinder synchronization device of gate lifter provided with gate sinking prevention mechanism |
| CN101131168A (en) * | 2006-08-23 | 2008-02-27 | 上海中欧汽车电器有限公司 | Safe double-cylinder hydraulic lifting mechanism with force synchronization in internal follow-up section |
| CN201461586U (en) * | 2009-06-30 | 2010-05-12 | 周建新 | Hydraulic quantitative distributor |
| CN101705951A (en) * | 2009-11-17 | 2010-05-12 | 徐工集团工程机械有限公司 | Self-compensating two-way synchronous reciprocating positioning and contraposition hydraulic system |
| CN201650901U (en) * | 2010-03-29 | 2010-11-24 | 张元杰 | Multi-cylinder synchronous hydraulic control device |
| CN203272335U (en) * | 2013-05-20 | 2013-11-06 | 芜湖市银鸿液压件有限公司 | Synchronization distributor hydraulic cylinder |
| CN208546373U (en) * | 2018-07-09 | 2019-02-26 | 襄阳博亚精工装备股份有限公司 | One pushes away the multistage hydraulic execution distributor for guaranteeing synchronization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109630488A (en) | 2019-04-16 |
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