CN111075784A - Automatic control type hydraulic synchronous cylinder synchronous loop - Google Patents
Automatic control type hydraulic synchronous cylinder synchronous loop Download PDFInfo
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- CN111075784A CN111075784A CN202010136277.2A CN202010136277A CN111075784A CN 111075784 A CN111075784 A CN 111075784A CN 202010136277 A CN202010136277 A CN 202010136277A CN 111075784 A CN111075784 A CN 111075784A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 103
- 238000005192 partition Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 65
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
- 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
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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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)
- Actuator (AREA)
Abstract
The invention relates to a self-control hydraulic synchronous cylinder synchronous circuit which comprises a first hydraulic control reversing valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a synchronous oil cylinder, a second hydraulic control reversing valve and a third hydraulic control reversing valve, wherein the first hydraulic control one-way valve is communicated with a high-pressure oil inlet path and control oil paths of the three hydraulic control reversing valves, the second hydraulic control one-way valve is communicated with a low-pressure oil return path and the control oil paths of the three hydraulic control reversing valves, the synchronous oil cylinder is divided into a left oil cylinder and a right oil cylinder, and the two oil cylinders are structurally symmetrical to each other. This patent is through two the same flows of synchronous hydro-cylinder output to utilize two liquid accuse check valves and three liquid accuse switching-over valves to realize the automatic switching-over of synchronous hydro-cylinder, thereby can drive the great working cylinder of stroke with less synchronous hydro-cylinder stroke, do benefit to the miniaturization and the integration of synchronous circuit, also improved synchronous circuit's stability, security, reliability.
Description
Technical Field
The invention belongs to the technical field of hydraulic pressure, and particularly relates to a self-control hydraulic synchronous cylinder synchronous circuit.
Background
In some large-scale equipment such as a lifting platform and a hydraulic jacking device, in order to overcome a large load, two or more hydraulic cylinders need to be used for synchronous motion, so that a workbench or a jacking object can be ensured to be level and stably ascend. At present, some synchronous devices such as a synchronous hydraulic cylinder, a flow divider valve, a proportional speed regulating valve and the like need to be added to the hydraulic synchronous circuit. When utilizing hydraulic system to drive the hydro-cylinder, need the hydro-cylinder synchronous operation of complex to carry out, otherwise can produce the skew, if the hydro-cylinder operation is asynchronous the condition that will appear inclining or drop causes the incident.
In a general hydraulic synchronous cylinder synchronous circuit hydraulic system (as shown in fig. 1), the stroke of a synchronous cylinder needs to be kept equal to that of a working cylinder, and when the stroke of the working cylinder is larger, the phenomenon that the length of the synchronous cylinder is longer can be generated.
Disclosure of Invention
In view of the above, the present invention is directed to a self-controlled hydraulic synchronization cylinder synchronization circuit, so as to solve the problem that the size of a synchronization cylinder in the existing synchronization cylinder synchronization circuit is large, which is not favorable for the miniaturization and integration of a hydraulic system.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a self-control formula hydraulic pressure synchronous cylinder synchronization circuit which characterized in that: the hydraulic control system comprises a first hydraulic control reversing valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a synchronous oil cylinder, a second hydraulic control reversing valve and a third hydraulic control reversing valve.
The hydraulic control reversing valve comprises a first hydraulic control reversing valve body, a second hydraulic control reversing valve body, a synchronous oil cylinder, a first hydraulic control reversing valve, a second hydraulic control reversing valve, a third hydraulic control reversing valve, a first hydraulic control one-way valve, a second hydraulic control reversing valve, a third hydraulic control reversing valve, a fourth.
The first hydraulic control one-way valve is communicated with the high-pressure oil inlet path and control oil paths of the three hydraulic control reversing valves, a valve body of the first hydraulic control one-way valve is fixedly connected with the synchronous oil cylinder, the ejector rod extends into the first cavity of the synchronous oil cylinder, and when a piston of the synchronous oil cylinder moves to the leftmost side, the ejector rod can be pushed to open the first hydraulic control one-way valve.
The second hydraulic control one-way valve is communicated with the low-pressure oil return path and control oil paths of the three hydraulic control reversing valves, a valve body of the second hydraulic control one-way valve is fixedly connected with the synchronous oil cylinder, the ejector rod extends into the fourth cavity of the synchronous oil cylinder, and when a piston of the synchronous oil cylinder moves to the rightmost side, the ejector rod can be pushed to open the second hydraulic control one-way valve.
The R port and the O port of the synchronous oil cylinder are communicated with the P port and the T port of the second hydraulic control reversing valve respectively, the K port and the G port of the synchronous oil cylinder are communicated with the P port and the T port of the third hydraulic control reversing valve respectively, and the synchronous oil cylinder is divided into a left oil cylinder and a right oil cylinder which are symmetrical in structure.
And the port A of the second hydraulic control reversing valve is communicated with the port P of the first electromagnetic reversing valve.
And the port A of the third hydraulic control reversing valve is communicated with the port P of the second electromagnetic reversing valve.
The invention has the beneficial effects that: the three hydraulic control reversing valves are adopted to mechanically control the automatic reversing of the synchronous oil cylinder, so that the synchronous oil cylinder can continuously work, the size of the synchronous oil cylinder can be greatly reduced, the miniaturization and the integration are facilitated, the working stability of a synchronous loop is improved, the structure is simple, the leakage among all elements is reduced, and meanwhile, the energy consumption loss of all elements during working can be reduced.
Furthermore, the synchronous oil cylinder further comprises a partition plate, a right cylinder barrel, a left cylinder barrel, a piston rod, a right piston, a left piston, a right cylinder cover and a left cylinder cover.
The right-hand member face and the right cylinder welding of baffle, left end face and the welding of left cylinder, the piston rod passes through screw thread fixed connection with right piston and left piston, the piston rod is clearance fit reciprocating motion relatively with baffle, right cylinder cap and left cylinder cap, right piston is clearance fit reciprocating motion relatively with right cylinder, left piston and left cylinder, the distance of right piston for the baffle is always strictly equal with the distance of left piston for left cylinder cap, right cylinder cap and right cylinder, left cylinder cap and left cylinder all pass through screw fixed connection.
The beneficial effect of adopting the further scheme is that: the two oil cylinders with symmetrical left and right structures are adopted, and the two oil cylinders share one piston rod, so that the output flow of the left oil cylinder and the right oil cylinder is ensured to be equal.
Furthermore, a T port of the first electromagnetic directional valve is communicated with an oil tank, an A port of the first electromagnetic directional valve is communicated with a rodless cavity of the first hydraulic cylinder, and a B port of the first electromagnetic directional valve is communicated with a rod cavity of the first hydraulic cylinder.
The T port of the second electromagnetic directional valve is communicated with the oil tank, the A port of the second electromagnetic directional valve is communicated with the rodless cavity of the second hydraulic cylinder, and the B port of the second electromagnetic directional valve is communicated with the rod cavity of the second hydraulic cylinder.
The models of the second hydraulic control reversing valve and the third hydraulic control reversing valve are completely consistent, the models of the first electromagnetic reversing valve and the second electromagnetic reversing valve are completely consistent, and the models of the first hydraulic control one-way valve and the second hydraulic control one-way valve are completely consistent.
The beneficial effect of adopting the further scheme is that: two electromagnetic directional valves with the same model and connection mode are adopted, so that the control effects of the two electromagnetic directional valves are consistent.
Further, the first hydraulic cylinder and the second hydraulic cylinder are identical in size.
The beneficial effect of adopting the further scheme is that: two hydraulic cylinders with the same size can ensure the synchronization of the work.
Compared with the prior art, the self-control hydraulic synchronous cylinder synchronous circuit has the following advantages:
the automatic control type hydraulic synchronous cylinder synchronous loop hydraulic system effectively reduces the volume of the synchronous cylinder, is beneficial to miniaturization and integration of the synchronous loop, mechanically and automatically controls the reversing of the synchronous cylinder, is convenient for the synchronous cylinder to continuously work, improves the stability, safety and reliability of the synchronous loop, reduces the product cost, improves the working efficiency, realizes a reasonable hydraulic synchronous system through reasonable design, further improves the stability, reliability and synchronism of the whole system, and has higher practicability and higher cost performance compared with the prior art.
Drawings
FIG. 1 is a schematic diagram of a prior art hydraulic synchronizing cylinder synchronizing circuit;
FIG. 2 is a schematic diagram of a self-controlled hydraulic synchronization cylinder synchronization circuit implemented in the present invention;
FIG. 3 is a block diagram of the synchronization cylinder;
in the figure: 1 high-pressure oil source, 2 first hydraulic control reversing valves, 3 first hydraulic control one-way valves, 4 synchronous oil cylinders, 5 second hydraulic control reversing valves, 6 third hydraulic control reversing valves, 7 second hydraulic control one-way valves, 8, an oil tank, 9, first electromagnetic reversing valves, 10, first hydraulic cylinders, 11, second hydraulic cylinders, 12, second electromagnetic reversing valves, 41, a partition plate, 42, a right cylinder barrel, 43, a left cylinder barrel, 44, a piston rod, 45, a right piston, 46, a left piston, 47, a right cylinder cover, 48 and a left cylinder cover.
Detailed Description
The present invention will be further described with reference to the following embodiments. The drawings are only for purposes of illustration and are not intended to be limiting, some components of the drawings may be omitted, enlarged or reduced to better illustrate the embodiments of the present invention, and do not represent the size of an actual product, and some well-known structures in the drawings and descriptions thereof may be omitted for understanding by those skilled in the art.
Referring to fig. 2-3, the present embodiment provides a self-controlled hydraulic synchronous cylinder synchronous circuit, which includes a first hydraulic control directional control valve 2, a first hydraulic control one-way valve 3, a second hydraulic control one-way valve 7, a synchronous cylinder 4, a second hydraulic control directional control valve 5, and a third hydraulic control directional control valve 6.
The port P and the port T of the first hydraulic control reversing valve 2 are respectively communicated with a high-pressure oil source 1 and an oil tank 8, the port A of the first hydraulic control reversing valve 2 is communicated with the port M and the port Q of the synchronous oil cylinder 4, the port B of the first hydraulic control reversing valve 2 is communicated with the port N and the port S of the synchronous oil cylinder 4, and the hydraulic control port of the first hydraulic control reversing valve 2 is communicated with the hydraulic control port of the second hydraulic control reversing valve 5, the hydraulic control port of the third hydraulic control reversing valve 6 and the hydraulic control port of the first hydraulic control one-way valve 3.
The first hydraulic control one-way valve 3 is communicated with a high-pressure oil inlet path and control oil paths of the three hydraulic control reversing valves, a valve body of the first hydraulic control one-way valve 3 is fixedly connected with the synchronous oil cylinder 4, the ejector rod extends into a first cavity of the synchronous oil cylinder 4, and when a piston of the synchronous oil cylinder 4 moves to the leftmost side, the ejector rod can be pushed to open the first hydraulic control one-way valve 3.
The second hydraulic control one-way valve 7 is communicated with the low-pressure oil return path and control oil paths of the three hydraulic control reversing valves, a valve body of the second hydraulic control one-way valve 7 is fixedly connected with the synchronous oil cylinder 4, the ejector rod extends into the fourth cavity of the synchronous oil cylinder 4, and when a piston of the synchronous oil cylinder 4 moves to the rightmost side, the ejector rod can be pushed to open the second hydraulic control one-way valve 7.
The R port and the O port of the synchronous oil cylinder 4 are respectively communicated with the P port and the T port of the second hydraulic control reversing valve 5, the K port and the G port of the synchronous oil cylinder 4 are respectively communicated with the P port and the T port of the third hydraulic control reversing valve 6, and the synchronous oil cylinder 4 is divided into a left oil cylinder and a right oil cylinder which are symmetrical in structure.
And the port A of the second hydraulic control reversing valve 5 is communicated with the port P of the first electromagnetic reversing valve 9.
And the port A of the third pilot-operated directional control valve 6 is communicated with the port P of the second electromagnetic directional control valve 12.
Specifically, in order to equalize the two output flows of the synchronous cylinder, the synchronous cylinder 4 further includes a partition plate 41, a right cylinder 42, a left cylinder 43, a piston rod 44, a right piston 45, a left piston 46, a right cylinder cover 47, and a left cylinder cover 48.
The right end face of the partition plate 41 is welded with the right cylinder barrel 42, the left end face of the partition plate 41 is welded with the left cylinder barrel 43, the piston rod 44 is fixedly connected with the right piston 45 and the left piston 46 through threads, the piston rod 44 is in clearance fit with the partition plate 41, the right cylinder cover 47 and the left cylinder cover 48 and can move in a reciprocating mode relatively, the right piston 45 is in clearance fit with the right cylinder barrel 42 and can move in a reciprocating mode relatively, the distance between the right piston 45 and the partition plate 41 is always strictly equal to the distance between the left piston 46 and the left cylinder cover 48, and the right cylinder cover 47 and the right cylinder barrel 42 are fixedly connected with the left cylinder barrel 43 through screws.
Specifically, in order to control the two working hydraulic cylinders synchronously by the two electromagnetic directional valves, the port T of the first electromagnetic directional valve 9 is communicated with the oil tank 8, the port a of the first electromagnetic directional valve 9 is communicated with the rodless chamber of the first hydraulic cylinder 10, and the port B of the first electromagnetic directional valve 9 is communicated with the rod chamber of the first hydraulic cylinder 10.
The port T of the second electromagnetic directional valve 12 is communicated with the oil tank 8, the port A of the second electromagnetic directional valve 12 is communicated with a rodless cavity of the second hydraulic cylinder 11, and the port B of the second electromagnetic directional valve 12 is communicated with a rod cavity of the second hydraulic cylinder 11.
The models of the second hydraulic control reversing valve 5 and the third hydraulic control reversing valve 6 are completely the same, the models of the first electromagnetic reversing valve 9 and the second electromagnetic reversing valve 12 are completely the same, and the models of the first hydraulic control one-way valve 3 and the second hydraulic control one-way valve 7 are completely the same.
Specifically, in order to synchronize the movements of the two cylinders, the first cylinder 10 and the second cylinder 11 are identical in size.
The working principle is as follows: when the self-control hydraulic synchronous cylinder synchronous circuit is used, high-pressure oil passes through the left position of the first hydraulic control reversing valve 2 to the second cavity and the fourth cavity of the synchronous oil cylinder 4 to push the piston of the synchronous oil cylinder 4 to move leftwards, so that hydraulic oil in the first cavity and the third cavity flows to the rodless cavities of the first hydraulic cylinder and the second hydraulic cylinder through the left positions of the second hydraulic control reversing valve and the third hydraulic control reversing valve and the left positions of the first electromagnetic reversing valve and the second electromagnetic reversing valve. Because the sizes of the two pistons inside the synchronous cylinder 4 are completely consistent, and the left and right cylinders of the synchronous cylinder 4 are structurally symmetrical, the flow rates flowing to the first hydraulic cylinder 10 and the second hydraulic cylinder 11 through the synchronous cylinder 4 are equal, and because the sizes of the first hydraulic cylinder 10 and the second hydraulic cylinder 11 are completely consistent, the motions of the first hydraulic cylinder 10 and the second hydraulic cylinder 11 are completely synchronous.
When the piston of the synchronous oil cylinder 4 moves to the leftmost side, the ejector rod is pushed to open the first hydraulic control one-way valve 3, and the high-pressure oil pushes the first hydraulic control reversing valve, the second hydraulic control reversing valve and the third hydraulic control reversing valve to the right position through the control loop, so that the automatic reversing control of the hydraulic control reversing valves is realized.
After reversing, high-pressure oil passes through the right position of the first hydraulic control reversing valve 2 to the first cavity and the third cavity of the synchronous oil cylinder 4, two pistons of the synchronous oil cylinder 4 are pushed to move rightwards, so that hydraulic oil in the second cavity and the fourth cavity flows to rodless cavities of the first hydraulic cylinder and the second hydraulic cylinder through the right position of the second hydraulic control electromagnetic reversing valve and the left position of the first electromagnetic reversing valve and the second electromagnetic reversing valve, when the pistons move to the rightmost side, the ejector rod is pushed to open the second hydraulic control one-way valve 7, high-pressure oil of an oil way is controlled to be unloaded, the first hydraulic control one-way valve, the second hydraulic control electromagnetic reversing valve and the third hydraulic control electromagnetic reversing valve return to the left position, and therefore the continuity of the synchronous oil cylinder 4 is ensured to work in a.
The above process is required to ensure that the distance between the right piston and the partition plate is always strictly equal to the distance between the left piston and the left cylinder head when the synchronous cylinder 4 is assembled.
The mode can realize that the stroke of the shorter synchronous oil cylinder meets the synchronous requirement of the working oil cylinder with longer stroke, is favorable for the miniaturization and integration of a synchronous circuit, controls the automatic reversing of the synchronous oil cylinder mechanically, effectively improves the stability, safety and reliability of the product, reduces the production cost, and has higher practicability and performance-to-price ratio compared with the prior art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a self-control formula hydraulic pressure synchronous cylinder synchronization circuit which characterized in that: the hydraulic control system comprises a first hydraulic control reversing valve (2), a first hydraulic control one-way valve (3), a second hydraulic control one-way valve (7), a synchronous oil cylinder (4), a second hydraulic control reversing valve (5) and a third hydraulic control reversing valve (6);
the port P and the port T of the first hydraulic control reversing valve (2) are respectively communicated with a high-pressure oil source (1) and an oil tank (8), the port A of the first hydraulic control reversing valve (2) is communicated with the port M and the port Q of the synchronous oil cylinder (4), the port B of the first hydraulic control reversing valve (2) is communicated with the port N and the port S of the synchronous oil cylinder (4), and the hydraulic control port of the first hydraulic control reversing valve (2) is communicated with the hydraulic control port of the second hydraulic control reversing valve (5), the hydraulic control port of the third hydraulic control reversing valve (6) and the hydraulic control port of the first hydraulic control one-way valve (3);
the first hydraulic control one-way valve (3) is communicated with a high-pressure oil inlet path and control oil paths of the three hydraulic control reversing valves, a valve body of the first hydraulic control one-way valve (3) is fixedly connected with the synchronous oil cylinder (4), the ejector rod extends into a first cavity of the synchronous oil cylinder (4), and when a piston of the synchronous oil cylinder (4) moves to the leftmost side, the ejector rod can be pushed to open the first hydraulic control one-way valve (3);
the second hydraulic control one-way valve (7) is communicated with a low-pressure oil return path and control oil paths of the three hydraulic control reversing valves, a valve body of the second hydraulic control one-way valve (7) is fixedly connected with the synchronous oil cylinder (4), the ejector rod extends into a fourth cavity of the synchronous oil cylinder (4), and when a piston of the synchronous oil cylinder (4) moves to the rightmost side, the ejector rod can be pushed to open the second hydraulic control one-way valve (7);
an R port and an O port of the synchronous oil cylinder (4) are respectively communicated with a P port and a T port of the second hydraulic control reversing valve (5), a K port and a G port of the synchronous oil cylinder (4) are respectively communicated with a P port and a T port of the third hydraulic control reversing valve (6), and the synchronous oil cylinder (4) is divided into a left oil cylinder and a right oil cylinder which are symmetrical in structure;
the port A of the second hydraulic control reversing valve (5) is communicated with the port P of the first electromagnetic reversing valve (9);
and the port A of the third hydraulic control reversing valve (6) is communicated with the port P of the second electromagnetic reversing valve (12).
2. The self-controlled synchronous cylinder synchronous circuit of claim 1, wherein: the synchronous oil cylinder (4) further comprises a partition plate (41), a right cylinder barrel (42), a left cylinder barrel (43), a piston rod (44), a right piston (45), a left piston (46), a right cylinder cover (47) and a left cylinder cover (48);
the right end face of baffle (41) and right cylinder (42) welding, the left end face and left cylinder (43) welding, piston rod (44) and right piston (45) and left piston (46) pass through screw thread fixed connection, piston rod (44) and baffle (41), right cylinder lid (47) and left cylinder lid (48) are clearance fit reciprocating motion relatively, right piston (45) and right cylinder (42), left piston (46) and left cylinder (43) are clearance fit reciprocating motion relatively, right piston (45) are always strictly equal with the distance of left piston (46) for left cylinder lid (48) for the distance of baffle (41), right cylinder lid (47) and right cylinder (42), left cylinder lid (48) and left cylinder (43) all pass through screw fixed connection.
3. The self-controlled synchronous cylinder synchronous circuit of claim 1, wherein: a T port of the first electromagnetic directional valve (9) is communicated with an oil tank (8), an A port of the first electromagnetic directional valve (9) is communicated with a rodless cavity of the first hydraulic cylinder (10), and a B port of the first electromagnetic directional valve (9) is communicated with a rod cavity of the first hydraulic cylinder (10);
a T port of the second electromagnetic directional valve (12) is communicated with the oil tank (8), an A port of the second electromagnetic directional valve (12) is communicated with a rodless cavity of the second hydraulic cylinder (11), and a B port of the second electromagnetic directional valve (12) is communicated with a rod cavity of the second hydraulic cylinder (11);
the models of the second hydraulic control reversing valve (5) and the third hydraulic control reversing valve (6) are completely consistent, the models of the first electromagnetic reversing valve (9) and the second electromagnetic reversing valve (12) are completely consistent, and the models of the first hydraulic control one-way valve (3) and the second hydraulic control one-way valve (7) are completely consistent.
4. The self-controlled synchronizing cylinder synchronizing circuit according to claim 3, wherein: the first hydraulic cylinder (10) and the second hydraulic cylinder (11) are completely consistent in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136277.2A CN111075784A (en) | 2020-03-02 | 2020-03-02 | Automatic control type hydraulic synchronous cylinder synchronous loop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136277.2A CN111075784A (en) | 2020-03-02 | 2020-03-02 | Automatic control type hydraulic synchronous cylinder synchronous loop |
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| CN111075784A true CN111075784A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010136277.2A Pending CN111075784A (en) | 2020-03-02 | 2020-03-02 | Automatic control type hydraulic synchronous cylinder synchronous loop |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011063695A1 (en) * | 2009-11-24 | 2011-06-03 | 中冶赛迪工程技术股份有限公司 | Combined type hydraulic control system for top distributing gear of blast furnace |
| CN102330712A (en) * | 2011-10-16 | 2012-01-25 | 西安建筑科技大学 | Sectional hydraulic synchronous circuit |
| CN103771289A (en) * | 2014-02-24 | 2014-05-07 | 河海大学常州校区 | Multi-cylinder synchronous lifting mechanism |
| CN208348187U (en) * | 2018-05-08 | 2019-01-08 | 凌云工业股份有限公司 | A kind of hydraulic press hydraulic control system equipped with synchronized cylinder |
| CN212028212U (en) * | 2020-03-02 | 2020-11-27 | 沈阳建筑大学 | Automatic control type hydraulic synchronous cylinder synchronous loop |
-
2020
- 2020-03-02 CN CN202010136277.2A patent/CN111075784A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011063695A1 (en) * | 2009-11-24 | 2011-06-03 | 中冶赛迪工程技术股份有限公司 | Combined type hydraulic control system for top distributing gear of blast furnace |
| CN102330712A (en) * | 2011-10-16 | 2012-01-25 | 西安建筑科技大学 | Sectional hydraulic synchronous circuit |
| CN103771289A (en) * | 2014-02-24 | 2014-05-07 | 河海大学常州校区 | Multi-cylinder synchronous lifting mechanism |
| CN208348187U (en) * | 2018-05-08 | 2019-01-08 | 凌云工业股份有限公司 | A kind of hydraulic press hydraulic control system equipped with synchronized cylinder |
| CN212028212U (en) * | 2020-03-02 | 2020-11-27 | 沈阳建筑大学 | Automatic control type hydraulic synchronous cylinder synchronous loop |
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