CN117006119B - Multi-cylinder servo synchronous hydraulic device - Google Patents
Multi-cylinder servo synchronous hydraulic device Download PDFInfo
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- CN117006119B CN117006119B CN202311062389.8A CN202311062389A CN117006119B CN 117006119 B CN117006119 B CN 117006119B CN 202311062389 A CN202311062389 A CN 202311062389A CN 117006119 B CN117006119 B CN 117006119B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 4
- 239000010720 hydraulic oil Substances 0.000 description 33
- 239000003921 oil Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007480 spreading Effects 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
- 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
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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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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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 the technical field of hydraulic control, and discloses a multi-cylinder servo synchronous hydraulic device which comprises a mounting box, wherein a wall plate at the left part of the mounting box is fixedly connected with a main pipe in an embedding way, the right end of the main pipe is communicated with two first-stage branch pipes in a front-back symmetrical way, the right end of each first-stage branch pipe is communicated with a second-stage branch pipe in a front-back symmetrical way, synchronous flow control mechanisms are commonly installed on the two first-stage branch pipes, flow control valves matched with the synchronous flow control mechanisms are installed on the first-stage branch pipes, the same synchronous flow control mechanisms are commonly installed outside the two second-stage branch pipes communicated with the first-stage branch pipes, and flow control valves are also arranged outside the second-stage branch pipes.
Description
Technical Field
The invention relates to the technical field of hydraulic control, in particular to a multi-cylinder servo synchronous hydraulic device.
Background
The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion, has simple structure and reliable work, can avoid a speed reducing device when being used for realizing reciprocating motion, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines.
When a plurality of hydraulic cylinders are used together and combined together in the working process, the lifting amount of each hydraulic cylinder needs to be kept consistent, the existing synchronization methods comprise mechanical synchronization, serial oil cylinder synchronization, synchronous motor synchronization and the like, but the methods have respective defects, such as mechanical synchronization, for example, the effect of achieving the hydraulic cylinder synchronization by mechanically connecting each hydraulic cylinder through a rigid shaft or a motor, the method has higher requirements on the strength of mechanical connection, mechanical force can damage the oil cylinders or the motors under the condition of uneven load, and the oil quantity flowing into each oil cylinder by the serial oil cylinders in the actual use process is uneven, so that the synchronization error of the hydraulic cylinders still exists, and the synchronization precision of the hydraulic cylinders in the working process is affected.
Disclosure of Invention
The invention provides a multi-cylinder servo synchronous hydraulic device, which solves the technical problems that oil cylinders are easy to damage due to mechanical synchronization in the traditional hydraulic synchronization, oil flows into the oil cylinders in a serial connection mode are uneven, and the synchronization precision of hydraulic cylinders is reduced.
The invention provides a multi-cylinder servo synchronous hydraulic device, which comprises a mounting box, wherein a wall plate at the left part of the mounting box is fixedly connected with a main pipe in a scarf joint manner, two primary branch pipes are symmetrically communicated with the front and back of the right end of the main pipe, two secondary branch pipes are symmetrically communicated with the front and back of the right end of each primary branch pipe, synchronous flow control mechanisms are jointly installed on the two primary branch pipes, flow control valves matched with the synchronous flow control mechanisms are installed on the primary branch pipes, the synchronous flow control mechanisms comprise a mounting plate fixedly connected to the upper cavity wall of the mounting box, a balance rod and a bidirectional telescopic rod which are sequentially connected to the right end surface of the mounting plate in a rotating manner from top to bottom, counterweight balls which are in front and back of the upper part of the bidirectional telescopic rod are symmetrically connected with one another and are fixedly connected to the lower part of the balance rod, a connecting plate, a group connected to the front and back of the cavity wall of the mounting box in a sliding manner is fixedly connected with the lower part of the balance rod through a sling, two slide rod groups are respectively hinged to the lower parts of the bidirectional telescopic rod through hinge blocks, flow control assemblies arranged in the primary branch pipes and matched with the synchronous flow control valves, flow control assemblies arranged on the lower parts of the primary branch pipes are matched with the two flow control assemblies, and the two flow control assemblies are also fixedly connected to the same side flow control mechanisms and are arranged on the outer side of the connecting rod.
In a possible implementation manner, the flow control valve comprises a valve pipe which is embedded and communicated on a primary branch pipe, sliding columns are slidably connected to front and rear end faces of the valve pipe, reset springs sleeved outside the sliding columns are fixedly connected to the outer walls of the sliding columns and the surfaces of the valve pipe together, valve plates are fixedly connected to one ends of inner cavities of the valve pipe, elastic blocking films are fixedly connected to the left side and the right side of the valve plates and the wall of a cavity of the valve pipe together, a door-shaped frame sleeved outside the valve pipe is connected to the wall of an upper cavity of the mounting box through a connecting telescopic rod in a sliding manner, the left end of the connecting rod is fixedly connected to the door-shaped frame, inclined collecting plates used for pushing the sliding columns are fixedly connected to the lower parts of opposite sides of vertical sections of the door-shaped frame, transverse columns are fixedly connected to the upper parts of opposite sides of the vertical sections of the door-shaped frame through connecting columns, and inclined expanding plates used for being matched with the transverse columns to pull the sliding columns to move.
In one possible implementation manner, the flow sensing assembly comprises a cylindrical box which is connected to the primary branch pipe in an embedding way, a rotating shaft is connected to the front end face and the rear end face of the cylindrical box in a rotating way, and a plurality of blades are fixedly connected to the circumference outer wall of the rotating shaft in an equidistant way.
In one possible implementation manner, the moving assembly comprises a plate seat fixedly connected to the lower portion of the sliding rod set, a friction plate is fixedly connected to the left end face of the plate seat through a top spring, a round roller is fixedly connected to one end, close to the friction plate, of the rotating shaft, and the side end face of the friction plate is mutually abutted to the outer surface wall of the round roller.
In a possible implementation manner, the right end of the secondary branch pipe is communicated with a U-shaped pipe, a compensation part is arranged in the U-shaped pipe, the compensation part comprises a baffle plate which is hinged in the inner cavity of the right section of the U-shaped pipe through a rotating column in a front-back symmetrical mode, a pressure spring is fixedly connected between the baffle plate and the cavity wall of the U-shaped pipe together, L-shaped rods are fixedly connected to the front side and the rear side of the bending section of the U-shaped pipe, deflection plates corresponding to the baffle plate are hinged to the vertical section of the L-shaped rod, a hinging rod penetrating through the wall plate of the U-shaped pipe is hinged between the deflection plates and the baffle plate together, strip-shaped through grooves are formed in the front end face and the rear end face of the vertical section of the U-shaped pipe, an elastic membrane is fixedly connected to the inside of each strip-shaped through groove, a top plate for pushing the elastic membrane is hinged to one side of the deflection plates close to the U-shaped pipe, and one side of the top plate, which is far away from the deflection plates, is fixedly connected to the surface of the elastic membrane.
In one possible implementation, the inclined collecting plate and the inclined expanding plate are gradually inclined from top to bottom to one side close to the valve pipe, and the inclined collecting plate and the inclined expanding plate are arranged in a dislocation mode on different vertical lines.
In one possible implementation manner, the upper end surface and the lower end surface of the valve plate are fixedly connected with elastic rubber sealing strips, the valve plate and the opposite side of the valve pipe are hinged with expansion plates jointly, and the expansion plates are attached to the surface of the elastic blocking film.
In one possible implementation manner, the right vertical section of the U-shaped pipe is communicated with a communication hose, and one end of the communication hose, which is far away from the U-shaped pipe, is communicated with an abutting joint.
From the above technical scheme, the invention has the following advantages:
according to the invention, the forces of pushing the two ends of the bidirectional telescopic rod are the same through the same hydraulic oil throughput in the two flow sensing assemblies in the synchronous flow control mechanism so as to cancel each other, so that the balance rod is in a balanced state, when the hydraulic oil quantity in the flow sensing assemblies is changed and different, the balance rod is unbalanced and deflected, and then the balance rod is mutually combined with the flow control valve to adjust the flow of the hydraulic oil flowing through the primary branch pipe or the secondary branch pipe in real time, thereby ensuring the consistent flow of the hydraulic oil flowing through the primary branch pipe or the secondary branch pipe, improving the synchronous precision, and avoiding the damage to the hydraulic cylinder compared with the traditional mechanical synchronous mode.
According to the invention, the baffle plates are driven to change when the oil flow in the two corresponding U-shaped pipes changes, the openings between the two corresponding baffle plates are continuously adjusted, and then the elastic membrane is driven to change by matching with the deflection plates, so that the flow velocity of the oil can be adjusted in real time according to the change of the oil flow, the same flow velocity of the oil flowing into the communication hose is ensured, and the synchronization precision is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a multi-cylinder servo synchronous hydraulic device provided by the invention.
FIG. 2 is a schematic diagram of the connection structure of the synchronous flow control mechanism, the primary branch pipe, the flow control valve and the secondary branch pipe.
Fig. 3 is a schematic diagram of a synchronous flow control structure provided by the present invention.
Fig. 4 is a schematic cross-sectional structure of a flow sensing assembly according to the present invention.
FIG. 5 is a schematic diagram of a cross-sectional configuration of a flow control valve provided by the present invention.
Fig. 6 is a schematic diagram of a mounting structure of a compensation portion according to the present invention.
Wherein the above figures include the following reference numerals:
1. a mounting box; 2. a header pipe; 3. a primary branch pipe; 4. a secondary branch pipe; 5. a synchronous flow control mechanism; 51. a mounting plate; 52. a balance bar; 53. a bidirectional telescopic rod; 54. a top contact column; 55. a slide bar set; 56. a flow sensing assembly; 561. a cartridge; 562. a blade; 57. a moving assembly; 571. a plate seat; 572. a friction plate; 573. a round roller; 6. a flow control valve; 61. a valve tube; 62. a spool; 63. a valve plate; 64. an elastic blocking film; 65. a gate frame; 66. a pressure collecting plate is obliquely arranged; 67. a transverse column; 68. a diagonal spreading plate is arranged; 7. a compensation unit; 71. a baffle; 72. a deflector plate; 73. a hinge rod; 74. an elastic film; 75. a top plate; 8. a U-shaped tube; 9. and a communication hose.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, the present invention provides a technical solution: the utility model provides a multi-cylinder servo synchronous hydraulic means, including mounting box 1, mounting box 1 left portion wallboard scarf joint fixedly connected with house steward 2, symmetrical intercommunication has two one-level branch pipes 3 around house steward 2 right-hand member, symmetrical intercommunication has second grade branch pipe 4 around every one-level branch pipe 3 right-hand member, install synchronous accuse flow mechanism 5 jointly on two one-level branch pipes 3, install on the one-level branch pipe 3 be used for with synchronous accuse flow mechanism 5 matched with flow control valve 6, be located and communicate two second grade branch pipe 4 outsides on one-level branch pipe 3 and also install the same synchronous accuse flow mechanism 5 jointly, second grade branch pipe 4 outside also all is provided with flow control valve 6.
Referring to fig. 2, 3 and 4, in the present embodiment, the synchronous flow control mechanism 5 includes: the installation plate 51 fixedly connected to the upper cavity wall of the installation box 1, the balance rod 52 and the bidirectional telescopic rod 53 which are sequentially and rotatably connected to the right end face of the installation plate 51 from top to bottom, the top contact column 54 abutting against the lower part of the balance rod 52 and the counterweight ball fixedly connected to the lower part of the balance rod 52 in a front-back symmetrical mode through a sling, the connection plate is fixedly connected to the front cavity wall and the rear cavity wall of the installation box 1, the sliding rod group 55 and the sliding rod groups 55 which are slidably connected to the inside of the connection plate are hinged to the lower part of the bidirectional telescopic rod 53 through hinging blocks respectively, the induced flow assembly 56 arranged in the primary branch pipe 3, the movable assembly 57 which is arranged on the lower part of the sliding rod group 55 and matched with the induced flow assembly 56, the cylindrical box 561 which is fixedly installed between the sliding rod group 55 and the flow control valve 6 together, the induced flow assembly 56 comprises a rotating shaft which is fixedly connected to the front end face and the rear end face of the cylindrical box in a sleeved mode, the circumference outer wall of the rotating shaft is fixedly connected with a plurality of blades 562 in an equidistant mode, the movable assembly 57 comprises a plate seat 571 fixedly connected to the lower part of the connection plate seat 571, the plate seat is fixedly connected to the upper end face of the plate seat 571 through hinging blocks, the plate seat is fixedly connected to the top face of the plate seat 571, the plate seat is tightly abuts against the friction plate 57572 of the friction plate 573, and the friction plate 573 is tightly contacted with the friction plate 573 through the rotating face 573, and the friction plate 57is tightly abuts against the friction plate 573, and the friction plate 573 is tightly provided with the friction plate 573.
Referring to fig. 4 and 5, the flow control valve 6 includes a valve tube 61 that is connected to the primary branch tube 3 in a scarf joint manner, sliding columns 62 are slidably connected to front and rear end surfaces of the valve tube 61, outer walls of the sliding columns 62 and surfaces of the valve tube 61 are fixedly connected with reset springs sleeved outside the sliding columns 62, one end of each sliding column 62 located in an inner cavity of the valve tube 61 is fixedly connected with a valve plate 63, elastic baffle plates 64 are fixedly connected to left and right sides of the valve plate 63 and cavity walls of the valve tube 61, an upper cavity wall of the mounting box 1 is slidably connected to a gate frame 65 sleeved outside the valve tube 61 through a connecting telescopic rod, the left end of the connecting rod is fixedly connected to the gate frame 65, lower parts of opposite sides of vertical sections of the gate frame are fixedly connected with inclined collecting plates 66 for pushing the sliding columns 62 through fixing columns, upper parts of opposite sides of the vertical sections of the gate frame 65 are fixedly connected with inclined collecting plates 67 through connecting columns for being matched with the transverse columns 67 to pull inclined collecting plates 68 moving the sliding columns 62, the inclined collecting plates 66 and the inclined collecting plates 68 are gradually move from the upper sides to the lower sides of the valve tube 61 through connecting columns, the inclined collecting plates 66 are in a sealing strips and the opposite sides of the inclined collecting plates are in a sealing strips and are in a sealing strip shape, and are in a sealing strip shape and can be in a sealing mode of being matched with the sealing strips and is not in a sealing strip shape.
When the hydraulic oil is used, hydraulic oil is introduced from the left end of the main pipe 2, hydraulic oil flows rightwards along the main pipe 2 and enters the primary branch pipe 3, then the hydraulic oil flows into the secondary branch pipe 4, the hydraulic oil drives the blades 562 to move in the flowing process of the primary branch pipe 3, the blades 562 drive the rotating shafts to rotate, the rotating shafts drive the round rollers 573 to rotate, the friction plates 572 which are in contact with the round rollers 573 are driven to move upwards, the friction plates 572 drive the sliding rod group 55 to move upwards through the plate seat 571, the sliding rod group 55 pushes the bidirectional telescopic rod 53 upwards, the upper ends of the jacking contact columns 54 are abutted to the lower surface of the balance rod 52, the front plate seat 571 and the rear plate seat are simultaneously moved upwards to drive the jacking contact columns 54 to simultaneously abut against the balance rod 52, sliding contact is formed between the round rollers 573 and the friction plates 572, the round rollers 573 rotate to drive the friction plates 572 to have a trend of always moving upwards, the rotation speeds of the two round rollers 573 are the same in the same flow rate of the front and rear plate 573, the two round rollers 573 simultaneously drive the sliding rod group 55 to move upwards, and the sliding rod group 55 is in the same, so that when the two sliding rod groups are in the front and the balance rod 52 is in a state of being out of balance, and the balance force of the two sliding rod groups is lost, and the balance rod 52 is in the state of the balance is in the state of being in which the horizontal and the state of the balance is in the state of being caused by the high when the balance is in the state of the high.
Examples: when the flow rate of the hydraulic oil in the first-stage branch pipe 3 at the rear is slowed, the rising force of the sliding rod group 55 at the front is larger than the upward pressing force of the sliding rod group 55 at the rear, so that the balance rod 52 is deflected to be in a front high-rear low inclined state, the bidirectional telescopic rod 53 is driven to be synchronously deflected to be in a front high-rear low inclined state, the sliding rod group 55 at the front is driven to move upwards, the sliding rod group 55 at the rear is moved downwards, the sliding rod group 55 at the front moves upwards to drive the front gate frame 65 to move upwards through the connecting rod, the front gate frame 65 moves upwards to drive the inclined gathering plate 66 arranged on the sliding rod 65 to synchronously rise, then the gathering plate is abutted against the sliding column 62 and drives the sliding column 62 to move towards the inner cavity close to the valve pipe 61 by utilizing the inclined plane of the sliding column 62, and then drives the two valve plates 63 in the valve pipe 61 to move close to each other and drives the elastic baffle 64 to be stretched, so that the path size of the hydraulic oil flowing in the valve pipe 61 is shortened, and the flow rate of the hydraulic oil in the valve pipe 61 at the front is slowed down.
The sliding rod group 55 positioned at the rear descends to drive the rear gate frame 65 to descend, the rear gate frame 65 drives the inclined expanding and moving plate 68 to move downwards and collide with the transverse column 67, the inclined surface of the inclined expanding and moving plate 68 extrudes the transverse column 67 to drive the sliding columns 62 to move away from each other, and then the valve plates 63 in the valve pipes 61 are driven to move away from each other, so that the throughput of hydraulic oil in the rear valve pipes 61 is increased, the flow rate in the rear primary branch pipes 3 is accelerated, the rotating speed of the round rollers 573 positioned at the rear is accelerated, the balance rod 52 is gradually deflected to restore to the balance state, otherwise, when the flow rate of the hydraulic oil in the primary branch pipes 3 positioned at the front is reduced, the steps are reversely carried out, and the throughput of the hydraulic oil in the primary branch pipes 3 is adjusted in real time, so that the hydraulic oil flows into the secondary branch pipes 4 from the primary branch pipes 3, and the synchronous flow control mechanisms 5 arranged on the secondary branch pipes 4 are matched with the flow control valves 6.
Referring to fig. 6, in this embodiment, a compensating portion 7 is installed in a U-shaped tube 8,U tube 8 connected to the right end of the secondary branch tube 4, the compensating portion 7 includes a baffle plate 71 hinged in the inner cavity of the right section of the U-shaped tube 8 through a rotating post and symmetrically around, a compression spring is fixedly connected between the baffle plate 71 and the cavity wall of the U-shaped tube 8, the front and rear sides of the bent section of the U-shaped tube 8 are fixedly connected with L-shaped rods, a deflection plate 72 corresponding to the baffle plate 71 is hinged to the vertical section of the L-shaped rod, a hinging rod 73 penetrating through the wall plate of the U-shaped tube 8 is hinged between the deflection plate 72 and the baffle plate 71, strip-shaped through grooves are formed in the front and rear end surfaces of the left vertical section of the U-shaped tube 8, an elastic membrane 74 is fixedly connected inside the strip-shaped through grooves, a top plate 75 for pushing the elastic membrane 74 is hinged to one side of the deflection plate 72 close to the U-shaped tube 8, one side of the top plate 75 far away from the deflection plate 74 is fixedly connected to the surface of the elastic membrane 74, a communication hose 9 is connected to the right vertical section of the U-shaped tube 8, and one end of the communication hose 9 far away from the U-shaped tube 8 is connected with a butt joint.
The hydraulic oil flows into the U-shaped pipe 8 from the secondary branch pipe 4, the two baffle plates 71 in the compensating part 7 are pressed by the pressure spring to be in a closed state of abutting together in the initial state, the two baffle plates 71 are impacted to rotate around respective hinging points when the hydraulic oil flows in the U-shaped pipe 8 so that a certain opening is opened at the joint of the two baffle plates, the two deflection plates 72 on the U-shaped pipe 8 are parallel to each other when the flow rate in the U-shaped pipe 8 is in a normal size, when the flow rate of the hydraulic oil is increased, the openings of the baffle plates 71 are punched to be large, the right ends of the deflection plates 72 are driven to be away from each other by the hinging rod 73, the left ends of the deflection plates 72 are moved close to each other at the moment, and then drive roof 75 stretch into the bar logical groove, and then extrude elastic membrane 74 and be close to each other and remove, reduce the passing aperture of hydraulic oil in the vertical section of U-shaped pipe 8 left portion in order to reduce the throughput of hydraulic oil, otherwise when the hydraulic oil passing amount in U-shaped pipe 8 becomes less, the left end of deflector 72 keeps away from each other and drives elastic membrane 74 and remove for the passing aperture of the vertical section hydraulic oil in left portion in U-shaped pipe 8 grow, increase the throughput of hydraulic oil, further revise the hydraulic oil mass that flows out from secondary branch pipe 4 in real time, thereby guarantee that the hydraulic oil mass that enters into in the pneumatic cylinder keeps unanimous, make each pneumatic cylinder can synchronous lifting movement.
During operation, firstly, the butt joints are respectively arranged on the hydraulic cylinders so that the hydraulic cylinders are communicated with the communication hoses 9, then hydraulic oil is introduced into the main pipe 2, then flows through the primary branch pipes 3, the secondary branch pipes 4, the U-shaped pipes 8 and the communication hoses 9 in sequence and finally enters the hydraulic cylinders, when the hydraulic oil flows through the primary branch pipes 3 and the secondary branch pipes 4, the flow of the hydraulic oil is adjusted in real time through mutual cooperation of the synchronous flow control mechanism 5 and the flow control valves 6, the consistency of the hydraulic oil quantity in each part in the flowing process is ensured, and when the hydraulic oil flows through the U-shaped pipes 8, the throughput of the hydraulic oil is further adjusted through the compensating part 7, so that the hydraulic oil quantity entering the hydraulic cylinders is kept consistent, and the synchronous operation of the hydraulic cylinders can be ensured.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (5)
1. A multi-cylinder servo synchronous hydraulic device comprising a mounting box (1), characterized in that: the left wallboard of the mounting box (1) is fixedly connected with a main pipe (2) in a scarf joint manner, two primary branch pipes (3) are symmetrically communicated front and back at the right end of the main pipe (2), two secondary branch pipes (4) are symmetrically communicated front and back at the right end of each primary branch pipe (3), a synchronous flow control mechanism (5) is commonly installed on the two primary branch pipes (3), and a flow control valve (6) matched with the synchronous flow control mechanism (5) is installed on the primary branch pipe (3);
the synchronous flow control mechanism (5) comprises: the device comprises a mounting plate (51) fixedly connected to the upper cavity wall of a mounting box (1), a balance rod (52) and a bidirectional telescopic rod (53) which are sequentially and rotatably connected to the right end surface of the mounting plate (51) from top to bottom, a top contact column (54) which is abutted against the lower part of the balance rod (52) and symmetrically connected to the front and back of the upper part of the bidirectional telescopic rod (53), and a counterweight ball which is symmetrically fixed to the lower part of the balance rod (52) through a sling;
the front cavity wall and the rear cavity wall of the mounting box (1) are fixedly connected with connecting plates, the sliding rod groups (55) are connected inside the connecting plates in a sliding mode, the two sliding rod groups (55) are hinged to the lower portions of the bidirectional telescopic rods (53) through hinge blocks respectively, the flow sensing assembly (56) is arranged in the primary branch pipe (3), the moving assembly (57) matched with the flow sensing assembly (56) is arranged on the lower portions of the sliding rod groups (55), and the connecting rods are located between the sliding rod groups (55) and the flow control valves (6);
the same synchronous flow control mechanism (5) is also commonly installed outside two secondary branch pipes (4) communicated with the primary branch pipe (3), and flow control valves (6) are also arranged outside the secondary branch pipes (4);
the flow control valve (6) comprises a valve pipe (61) which is embedded and communicated with a primary branch pipe (3), sliding columns (62) are slidably connected to front and rear end faces of the valve pipe (61), reset springs sleeved outside the sliding columns (62) are fixedly connected to the outer walls of the sliding columns (62) and the surfaces of the valve pipe (61), one end of each sliding column (62) located in an inner cavity of the valve pipe (61) is fixedly connected with a valve plate (63), elastic blocking films (64) are fixedly connected to the left side and the right side of each valve plate (63) and the cavity wall of the valve pipe (61), the upper cavity wall of the mounting box (1) is slidably connected to a door-shaped frame (65) sleeved outside the valve pipe (61) through connecting telescopic rods, the left ends of the connecting rods are fixedly connected to the door-shaped frame (65), inclined pressure collecting plates (66) used for pushing the sliding columns (62) are fixedly connected to the opposite side lower parts of the vertical sections of the door-shaped frame (65), and the door-shaped frame (65) are fixedly connected to the upper parts of the door-shaped frame (65) through fixing columns, and the upper parts of the vertical sections of the door-shaped frame (62) are fixedly connected to the inclined plates (67) in a matched mode;
the flow sensing assembly (56) comprises a cylindrical box (561) which is connected to the primary branch pipe (3) in an embedded way, the front end face and the rear end face of the cylindrical box (561) are connected with a rotating shaft in a rotating way, and a plurality of blades (562) are fixedly connected to the circumferential outer wall of the rotating shaft in an equidistant way;
the movable assembly (57) comprises a plate seat (571) fixedly connected to the lower portion of the sliding rod set (55), a friction plate (572) is fixedly connected to the left end face of the plate seat (571) through a top spring, a round roller (573) is fixedly connected to one end, close to the friction plate (572), of the rotating shaft, and the side end face of the friction plate (572) is mutually abutted to the outer surface wall of the round roller (573).
2. The multi-cylinder servo synchronous hydraulic device according to claim 1, characterized in that: the utility model provides a two-stage branch pipe (4) right-hand member intercommunication has U-shaped pipe (8), install compensation portion (7) in U-shaped pipe (8), compensation portion (7) are including articulated in U-shaped pipe (8) right section inner chamber's separation blade (71) around through the steering column symmetry, joint fixedly connected with pressure spring between separation blade (71) and U-shaped pipe (8) chamber wall, all fixedly connected with L shape pole around the bending section of U-shaped pipe (8), the perpendicular section of L shape pole articulates has deflector (72) that correspond with separation blade (71), articulated pole (73) that run through U-shaped pipe (8) wallboard jointly between deflector (72) and separation blade (71), strip-shaped through groove inside fixedly connected with elastic membrane (74) around the vertical section of U-shaped pipe (8), one side that deflector (72) are close to U-shaped pipe (8) articulates has roof (75) that are used for pushing up elastic membrane (74), and deflector (72) are kept away from deflector (72) one side fixed connection on elastic membrane (74) surface.
3. The multi-cylinder servo synchronous hydraulic device according to claim 1, characterized in that: the inclined collecting plate (66) and the inclined expanding plate (68) incline from top to bottom gradually to one side close to the valve pipe (61), and the inclined collecting plate (66) and the inclined expanding plate (68) are arranged in a dislocation mode on different vertical lines.
4. The multi-cylinder servo synchronous hydraulic device according to claim 1, characterized in that: the upper end face and the lower end face of the valve plate (63) are fixedly connected with elastic rubber sealing strips, the opposite sides of the valve plate (63) and the valve pipe (61) are hinged with expansion plates jointly, and the expansion plates are attached to the surface of the elastic blocking film (64).
5. The multi-cylinder servo synchronous hydraulic device according to claim 2, characterized in that: the vertical section intercommunication in U-shaped pipe (8) right part has communication hose (9), the one end intercommunication that U-shaped pipe (8) were kept away from to communication hose (9) has the butt joint.
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| CN202311062389.8A CN117006119B (en) | 2023-08-22 | 2023-08-22 | Multi-cylinder servo synchronous hydraulic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311062389.8A CN117006119B (en) | 2023-08-22 | 2023-08-22 | Multi-cylinder servo synchronous hydraulic device |
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| CN117006119B true CN117006119B (en) | 2024-01-23 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1497594A (en) * | 1974-10-23 | 1978-01-12 | Messerschmitt Boelkow Blohm | Hydraulic servodrive |
| JP2007144455A (en) * | 2005-11-28 | 2007-06-14 | Bridgestone Corp | Speed controller for multiple cylinder type press |
| CN102996563A (en) * | 2012-12-07 | 2013-03-27 | 合肥长源液压股份有限公司 | Oil cylinder group capable of realizing synchronous movement |
| CN203374544U (en) * | 2013-06-08 | 2014-01-01 | 徐工集团工程机械股份有限公司 | Double-cylinder hydraulic device and lifting device |
| CN109779991A (en) * | 2019-01-09 | 2019-05-21 | 煤炭科学技术研究院有限公司 | A kind of rigidity high-precision hydraulic synchronizing device |
-
2023
- 2023-08-22 CN CN202311062389.8A patent/CN117006119B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1497594A (en) * | 1974-10-23 | 1978-01-12 | Messerschmitt Boelkow Blohm | Hydraulic servodrive |
| JP2007144455A (en) * | 2005-11-28 | 2007-06-14 | Bridgestone Corp | Speed controller for multiple cylinder type press |
| CN102996563A (en) * | 2012-12-07 | 2013-03-27 | 合肥长源液压股份有限公司 | Oil cylinder group capable of realizing synchronous movement |
| CN203374544U (en) * | 2013-06-08 | 2014-01-01 | 徐工集团工程机械股份有限公司 | Double-cylinder hydraulic device and lifting device |
| CN109779991A (en) * | 2019-01-09 | 2019-05-21 | 煤炭科学技术研究院有限公司 | A kind of rigidity high-precision hydraulic synchronizing device |
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| Publication number | Publication date |
|---|---|
| CN117006119A (en) | 2023-11-07 |
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