CN110319067B - Dual-motor-based proportional flow control and high-speed switch dual-purpose valve - Google Patents
Dual-motor-based proportional flow control and high-speed switch dual-purpose valve Download PDFInfo
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- CN110319067B CN110319067B CN201910715753.3A CN201910715753A CN110319067B CN 110319067 B CN110319067 B CN 110319067B CN 201910715753 A CN201910715753 A CN 201910715753A CN 110319067 B CN110319067 B CN 110319067B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 32
- 230000009977 dual effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 38
- 230000005284 excitation Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 108700005085 Switch Genes Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a dual-purpose valve for proportional flow control and high-speed switching based on dual motors, which comprises a valve body, a rotating motor and a linear motor, wherein a valve sleeve is fixedly connected inside the valve body, a first valve sleeve window and a second valve sleeve window are sequentially formed in the bottom of the valve sleeve from right to left, and a limiting clamping sleeve is clamped inside the valve body and positioned on one side of the valve sleeve through the valve sleeve and a valve body circumferential limiting key block. This dual-purpose valve of proportion flow control and high-speed switch based on bi-motor can do circumference rotation and axial displacement through rotating electrical machines and linear electric motor independent drive case, fine realization through improving the case switching structure, makes things convenient for people to realize simultaneously proportion flow control and high-speed switch control to the hydraulic valve, makes the range of application more extensive, and control accuracy is higher, and has reached the purpose of better control hydraulic medium's proportion.
Description
Technical Field
The invention relates to the technical field of hydraulic valves, in particular to a dual-purpose valve for proportional flow control and high-speed switching based on dual motors.
Background
The proportional control valve is a hydraulic control valve which can make the parameters (pressure, flow and direction) of the output oil liquid proportional to the changes of the parameters (current and voltage) of the input electric signal, thus realizing continuous proportional control, and is a novel hydraulic control element integrating the advantages of a switch type electrohydraulic control element and a servo type electrohydraulic control element.
Although the electrohydraulic servo valve is better than the electrohydraulic proportional valve in certain performance aspect and can be used as an excitation valve, the electrohydraulic servo valve has the defects of difficult adjustment of vibration amplitude, certain limitation, complex structure, obviously higher manufacturing precision requirement and price than the electrohydraulic proportional valve and poor pollution resistance, and cannot be widely applied to a high-flow high-speed switch excitation hydraulic system.
The invention provides a dual-purpose valve for proportional flow control and high-speed switching based on a double motor, which can independently drive a valve core to do circumferential rotation and axial movement through a rotating motor and a linear motor.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a dual-motor-based dual-purpose valve for proportional flow control and high-speed switching, which solves the problems that the existing single-proportion flow control valve cannot meet the use requirements of a large-flow high-speed switching complex hydraulic system which needs proportional reversing and excitation and has certain control precision and dynamic characteristic requirements, and the application range of the valve has certain limitation.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a proportional flow control and high-speed switch dual-purpose valve based on bi-motor, includes valve body, rotating electrical machines and linear electric machines, one side of rotating electrical machines passes through one side fixed connection of rotating electrical machines installation apron and valve body, and one side of linear electric machines passes through the opposite side fixed connection of linear electric machines installation apron and valve body, the inside fixedly connected with valve pocket of valve body, and valve pocket's bottom has seted up valve pocket first window and valve pocket second window in proper order from right to left, the inside of valve body just is located one side of valve pocket and has spacing cutting ferrule through valve pocket and the spacing key block joint of valve body circumference, and one side of spacing cutting ferrule passes through fastening screw and one side fixed connection of valve pocket, the equal fixedly connected with spacing cutting ferrule of both sides of spacing cutting ferrule inner wall links the key block, the inside sliding connection of valve pocket has the case.
One end of the valve core is fixedly connected with a limiting shoulder, one side of the limiting shoulder is provided with an arc-shaped slideway, a first contact surface, a second contact surface and a third contact surface which are matched with the limiting clamping sleeve fixedly connected key block respectively, the outer surface of the valve core is provided with a rectangular through opening of the valve core, and the end face of one end of the valve core is provided with an annular groove at the shaft end of the valve core.
Preferably, the bottom of the valve body is provided with an oil inlet, and the top of the valve body is provided with an oil outlet.
Preferably, one end of the output end of the rotary motor sequentially penetrates through the valve body and the valve sleeve and extends to the interior of the valve sleeve, and one end of the output end of the rotary motor extending to the interior of the valve sleeve is in sliding connection with one end of the valve core through a sliding key groove of the rotary motor shaft.
Preferably, the penetrating part of the output shaft of the rotating motor and the valve body is sealed through a framework oil seal structure.
Preferably, one end of the valve core, which is close to the output shaft of the rotating motor, is fixedly connected with a thrust bearing, and a return spring is sleeved on the outer surface of the valve core, which is positioned between the thrust bearing and the framework oil seal structure.
Preferably, one side of the linear motor is fixedly connected with a linear motor shaft, one end of the linear motor shaft sequentially penetrates through the valve body and the limiting clamping sleeve and extends to the inside of the limiting clamping sleeve, and the end face of the linear motor shaft extending to the inside of the limiting clamping sleeve is fixedly connected with a thrust steel ball matched with the annular groove at the shaft end of the valve core.
Preferably, the other side of the linear motor is fixedly connected with a linear motor adjusting hand wheel.
Preferably, the other side of the rotating motor is fixedly connected with a rotating motor adjusting hand wheel.
Preferably, through the control of rotating electrical machines and linear electric motor, change the cooperation relation between spacing circular bead and the spacing cutting ferrule, make it can confirm initial zero position working position fast, possess two-stage axial displacement, two left and right working positions after the first-stage displacement, can realize proportional flow control, the high-speed switch working position after the second-stage displacement, can realize high-flow quick break-make excitation.
Preferably, the fluid flow passing through the valve sleeve first window and the valve sleeve second window is contained in the oil inlet and the oil outlet.
(III) beneficial effects
The invention provides a dual-purpose valve for proportional flow control and high-speed switching based on dual motors. Compared with the prior art, the method has the following beneficial effects:
(1) The dual-purpose valve for proportional flow control and high-speed switching based on the dual-motor is characterized in that a valve sleeve is fixedly connected to the inside of a valve body, a valve sleeve first window and a valve sleeve second window are sequentially formed in the bottom of the valve sleeve from right to left, a limiting cutting sleeve is clamped on one side of the valve body through the valve sleeve and a valve body circumferential limiting key block, one side of the limiting cutting sleeve is fixedly connected with one side of the valve sleeve through a fastening screw, two sides of the inner wall of the limiting cutting sleeve are fixedly connected with limiting cutting sleeve fixedly connected key blocks, a valve core is slidably connected to the inside of the valve sleeve, one end of the valve core is fixedly connected with a limiting shoulder, an arc-shaped slideway matched with the limiting cutting sleeve fixedly connected key block, a first contact surface, a second contact surface and a third contact surface are respectively formed in one side of the limiting shoulder, a rectangular through opening of the valve core is formed in the outer surface of the valve core, the end surface of one end of the valve core is provided with the annular groove at the shaft end of the valve core, liquid flows passing through the first window of the valve sleeve and the second window of the valve sleeve are contained in the oil inlet and the oil outlet, the matching relationship between the limiting shoulder and the limiting clamping sleeve is changed through the control of the rotating motor and the linear motor, so that the initial zero working position can be rapidly determined, two stages of axial displacement are provided, two left and right working positions after the first stage of displacement can be used for realizing proportional flow control, the high-speed switching working position after the second stage of displacement can be used for realizing rapid on-off excitation of large flow, the vibration frequency and the vibration amplitude can be regulated in proportion, the improvement of the valve core switching structure is well realized, the simultaneous realization of the proportional flow control and the high-speed switching control of the hydraulic valve by people is facilitated, the application range is wider, the control precision is higher, and the purpose of better controlling the proportion of the hydraulic medium is achieved, thereby greatly facilitating the use of people.
(2) This dual-purpose valve of proportional flow control and high speed switch based on bi-motor through run through valve body and valve pocket in proper order at the one end of rotating electrical machines output and extend to the inside of valve pocket, the rotating electrical machines output extends to the one end sliding connection of valve pocket inside through rotating motor shaft sliding key groove and the one end sliding connection of case, can realize making the motor shaft be connected with the case sliding key in order to bear the axial displacement when rotatory and feed, thereby ensured the normal rotary motion and the axial displacement of case, the department of running through skeleton oil blanket structure through rotating electrical machines output shaft and valve body seals simultaneously, can realize preventing that the hydraulic oil in the valve body from spilling from the department of running through of rotating electrical machines output shaft and valve body, thereby guaranteed the normal use of this dual-purpose valve.
(3) This proportional flow control and high-speed switch dual-purpose valve based on bi-motor is through the one end fixedly connected with thrust bearing that is close to the rotating electrical machines output shaft at the case, and the case is located the surface cover between thrust bearing and the skeleton oil blanket structure and is equipped with the return spring, can realize making the case bear thrust when high-speed rotation, and ensure that the case can normally reset, one side fixedly connected with straight line motor shaft through the straight line motor simultaneously, the one end of straight line motor shaft runs through valve body and spacing cutting ferrule in proper order and extends to the inside of spacing cutting ferrule, and the terminal surface fixedly connected with that the straight line motor shaft extends to spacing cutting ferrule is inside with the thrust steel ball of case axle head annular groove looks adaptation, can realize making steel ball and case axle head contact, friction when reducing the case high-speed rotation, reduce wearing and tearing.
(4) This proportional flow control and high-speed switch dual-purpose valve based on bi-motor through the opposite side fixedly connected with linear electric motor regulating hand wheel at linear electric motor, can be convenient for realize the manual control when automatic control is out of control or case chucking, the opposite side fixedly connected with rotating electrical machines regulating hand wheel of rethread rotating electrical machines can realize the manual control when being convenient for automatic control is out of control or case chucking.
Drawings
FIG. 1 is a schematic diagram of the composition structure of the present invention;
FIG. 2 is a perspective cross-sectional view of the limiting ferrule structure of the present invention;
FIG. 3 is a schematic perspective view of a valve core and a stop shoulder according to the present invention;
FIG. 4 is a schematic view of the present invention in an initial zero position;
FIG. 5 is a schematic illustration of the relative positional relationship between the valve sleeve window and the valve core opening when the present invention is in the initial null position of operation;
FIG. 6 is a schematic view of the present invention in a first stage displacement valve port closing position;
FIG. 7 is a schematic illustration of the relative positional relationship between the valve housing window and the valve core opening in the first stage displacement valve port closing position of the present invention;
FIG. 8 is a schematic view of the present invention in a first stage displacement valve port open position;
FIG. 9 is a schematic illustration of the relative positional relationship between the valve housing window and the valve core opening in the first stage displacement valve port open operating position of the present invention;
FIG. 10 is a schematic diagram of the present invention in a second stage displacement valve port high speed switch operating position;
FIG. 11 is a schematic illustration of the relative positional relationship between the valve housing window and the valve core opening in the second stage displacement valve port high speed switch operating position of the present invention.
In the figure, a 1-rotating motor, a1 a-rotating motor regulating hand wheel, a 2-rotating motor mounting cover plate, a 3-framework oil seal, a 4-return spring, a 5-valve sleeve, a 5 a-valve sleeve first window, a 5 b-valve sleeve second window, a 6-valve core, a 6 a-limiting shoulder, a 6a 1-arc slideway, a 6a 2-first contact surface, a 6a 3-second contact surface, a 6a 4-third contact surface, a 6 b-valve core rectangular through opening, a 6 c-valve core shaft end annular groove, a 7-valve body, a 7 a-oil inlet, a 7 b-oil outlet, an 8-linear motor mounting cover plate, a 9-linear motor, a 9 a-linear motor regulating hand wheel, a 9 b-linear motor shaft, a 9 c-thrust steel ball, a 10-limiting cutting sleeve fixing key block, a 11-thrust bearing, a 12-valve sleeve and valve body circumferential limiting key block, a 13-fastening screw and a 14-rotating motor shaft sliding key groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-11, the embodiment of the present invention provides a technical solution: a dual-purpose valve for proportional flow control and high-speed switch based on double motors comprises a valve body 7, a rotary motor 1 and a linear motor 9, wherein one side of the rotary motor 1 is fixedly connected with one side of the valve body 7 through a rotary motor mounting cover plate 2, one side of the linear motor 9 is fixedly connected with the other side of the valve body 7 through a linear motor mounting cover plate 8, an oil inlet 7a is formed in the bottom of the valve body 7, an oil outlet 7b is formed in the top of the valve body 7, a linear motor regulating hand wheel 9a is fixedly connected with the other side of the linear motor 9, a rotary motor regulating hand wheel 1a is fixedly connected with the other side of the rotary motor 1, a valve sleeve 5 is fixedly connected with the inside of the valve body 7, a valve sleeve first window 5a and a valve sleeve second window 5b are sequentially formed in the bottom of the valve sleeve 5a and a liquid flow passing through the valve sleeve first window 5a and the valve sleeve second window 5b is contained in the oil inlet 7a and the oil outlet 7b, a limiting cutting sleeve 10 is clamped in the valve body 7 and positioned on one side of the valve sleeve 5 through a valve sleeve and a valve body circumferential limiting key block 12, one side of the limiting cutting sleeve 10 is fixedly connected with one side of the valve sleeve 5 through a fastening screw 13, both sides of the inner wall of the limiting cutting sleeve 10 are fixedly connected with a limiting cutting sleeve fixedly connected key block 10a, a valve core 6 is slidingly connected in the valve sleeve 5, one end of the output end of the rotating motor 1 sequentially penetrates through the valve body 7 and the valve sleeve 5 and extends into the valve sleeve 5, one end of the output end of the rotating motor 1 extending into the valve sleeve 5 is slidingly connected with one end of the valve core 6 through a rotating motor shaft sliding key groove 14, the penetrating position of the output shaft of the rotating motor 1 and the valve body 7 is sealed through a framework oil seal structure 3, one end of the valve core 6 close to the output shaft of the rotating motor 1 is fixedly connected with a thrust bearing 11, and the outer surface of the valve core 6 between the thrust bearing 11 and the framework oil seal structure 3 is sleeved with a return spring 4, and when the linear motor 9 is contracted and reset, the return spring 4 can act on the thrust bearing 11 to enable the valve core 6 to return, so that the whole valve automatically returns to the zero position.
One end of the valve core 6 is fixedly connected with a limiting shoulder 6a, one side of the limiting shoulder 6a is respectively provided with an arc-shaped slideway 6a1, a first contact surface 6a2, a second contact surface 6a3 and a third contact surface 6a4 which are matched with a limiting clamping sleeve fixedly connected with a key block 10a, the outer surface of the valve core 6 is provided with a valve core rectangular through opening 6b, the end surface of one end of the valve core 6 is provided with a valve core shaft end annular groove 6c, one side of the linear motor 9 is fixedly connected with a linear motor shaft 9b, one end of the linear motor shaft 9b sequentially penetrates through the valve body 7 and the limiting clamping sleeve 10 and extends to the inside of the limiting clamping sleeve 10, and the end surface of the linear motor shaft 9b extending to the inside of the limiting clamping sleeve 10 is fixedly connected with a thrust steel ball 9c matched with the valve core shaft end annular groove 6 c.
Working principle: 1) The switching mechanism is in an initial zero working position
Referring to fig. 4 and 5, when the linear motor 9 is at the zero position, the limiting sleeve fixing key block 10a inside the limiting sleeve 10 is just clamped inside the second contact surface 6a3 on the limiting shoulder 6a, and since the rectangular through opening 6b of the valve core is completely staggered with the first window 5a of the valve sleeve, the valve body 7, the valve sleeve 5 and the valve core 6 cannot form a through-flow valve opening at this time, that is, all valve openings of the dual-motor-based proportional flow control and high-speed switch dual-purpose valve are in a closed state and cannot be filled with oil at this time, and at this time, the initial zero position working position of the dual-motor-based proportional flow control and high-speed switch dual-purpose valve is corresponding.
2) The switching mechanism is positioned at the first-stage displacement valve port closing working position
Referring to fig. 6 and 7, as the linear motor 9 is extended, the linear motor 9b connected with the linear motor is driven to push the valve core 6 to move axially to the left, when the linear motor 9 is operated for a period of time, the linear motor 9b is extended for a corresponding length, so that the valve core 6 moves to the left for a corresponding distance, meanwhile, the upper surface of the limiting ferrule fixing key block 10a inside the limiting ferrule 10 is always in close contact with the first contact surface 6a2, at this time, the limiting ferrule fixing key block 10a inside the limiting ferrule 10 and the third contact surface 6a4 are located on the same vertical surface, and the rectangular through opening 6b of the valve core and the first window 5a of the valve sleeve are also located on the same vertical surface, but still are still in a staggered state, so that the valve body 7, the valve sleeve 5 and the valve core 6 cannot form a through valve, namely, the first-stage displacement valve port closing working position.
3) The switching mechanism is positioned at the first-stage displacement valve port opening working position
Referring to fig. 8 and 9, at this time, the rotating electrical machine 1 is controlled to rotate clockwise by a certain angle, so that the valve core 6 also rotates clockwise by a certain angle, at this time, the limiting ferrule fixing key block 10a inside the limiting ferrule 10 is completely slid into the groove and is in close contact with the third contact surface 6a4, at this time, the rectangular through opening 6b of the valve core is completely overlapped with the first window 5a of the valve sleeve, so that the valve body 7, the valve sleeve 5 and the valve core 6 form a through-flow valve opening, so that hydraulic oil flows out of the oil inlet 7a, the first window 5a of the valve sleeve, the rectangular through opening 6b of the valve core and the oil outlet 7b in sequence, thereby forming an oil through-flow path, and the proportional adjustment of the valve opening flow rate of the dual-purpose valve can be realized by proportionally controlling the rotation angle of the rotating electrical machine 1, namely, the opening working position of the valve opening of the first-stage displacement valve opening.
4) The switching mechanism is positioned at the high-speed switch working position of the second-stage displacement valve port
Referring to fig. 10 and 11, after the first-stage displacement is completed, the rotating motor 1 rotates anticlockwise by a corresponding angle, so that the limiting sleeve fixedly-connected key block 10a in the limiting sleeve 10 is separated from the third contact surface 6a4 and is attached to the first contact surface 6a2, then the linear motor 9 is started, the linear motor shaft 9b continues to extend to push the valve core 6 to move leftwards, so that the limiting sleeve fixedly-connected key block 10a in the limiting sleeve 10 is firstly separated from the first contact surface 6a2, then the limiting sleeve fixedly-connected key block 10a in the limiting sleeve 10 is completely separated from the arc-shaped slideway 6a1, the rotating motor 1 is started, the valve core rectangular through opening 6b and the valve sleeve second window 5b are completely overlapped, so that the valve body 7, the valve sleeve 5 and the valve core 6 form a through-flow valve opening, and hydraulic oil flows out of the oil inlet 7a, the valve sleeve rectangular through opening 6b and the oil through-flow passage, and the limiting sleeve fixedly-connected key block 10a in turn is not limited by any time at this moment, the rotating motor 1 rotates continuously, so that the valve opening and the valve opening can be controlled in a high-speed ratio by the vibration ratio, namely the vibration amplitude can be controlled by switching the axial displacement of the valve at a high-speed ratio, and the vibration amplitude can be realized by switching the vibration amplitude of the vibration valve.
To sum up:
the invention can realize the control of the rotary motor 1 and the linear motor 9 through adopting a special structural design, change the matching relation between the limit shoulder 6a and the limit clamping sleeve 10, ensure that the limit clamping sleeve can quickly determine an initial zero position working position, has two stages of axial displacement, two left and right working positions after the first stage of displacement, can realize the proportional flow control, and the high-speed switch working position after the second stage of displacement can realize the quick on-off excitation of large flow, and the vibration frequency and the vibration amplitude of the high-speed switch working position can be regulated in proportion, thereby being very good for realizing the improvement of the switching structure of the valve core 6, being convenient for people to realize the proportional flow control and the high-speed switch control of the hydraulic valve at the same time, leading the application range to be wider, leading the control precision to be higher, achieving the aim of better controlling the proportion of the hydraulic medium, and being greatly convenient for people to use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A proportional flow control and high-speed switch dual-purpose valve based on dual motors is characterized in that: the rotary motor comprises a valve body (7), a rotary motor (1) and a linear motor (9), wherein one side of the rotary motor (1) is fixedly connected with one side of the valve body (7) through a rotary motor mounting cover plate (2); one side of the linear motor (9) is fixedly connected with the other side of the valve body (7) through a linear motor mounting cover plate (8); an oil inlet (7 a) is formed in the bottom of the valve body (7), and an oil outlet (7 b) is formed in the top of the valve body; the valve sleeve (5) is fixedly connected inside the valve body (7); the bottom of the valve sleeve (5) is provided with a valve sleeve first window (5 a) and a valve sleeve second window (5 b) in sequence from right to left; a limiting clamping sleeve (10) is clamped in the valve body (7) and positioned on one side of the valve sleeve (5) through the valve sleeve and a valve body circumferential limiting key block (12); one side of the limiting clamping sleeve (10) is fixedly connected with one side of the valve sleeve (5) through a fastening screw (13), and two sides of the inner wall of the limiting clamping sleeve (10) are fixedly connected with limiting clamping sleeve fixedly connected key blocks (10 a); the valve core (6) is connected inside the valve sleeve (5) in a sliding way; one end of the valve core (6) is fixedly connected with a limit shoulder (6 a); one side of the limiting shoulder (6 a) is provided with an arc-shaped slideway (6 a 1), a first contact surface (6 a 2), a second contact surface (6 a 3) and a third contact surface (6 a 4) which are matched with the limiting clamping sleeve fixedly connected key block (10 a) respectively; the outer surface of the valve core (6) is provided with a rectangular through opening (6 b) of the valve core, and the end surface of one end of the valve core (6) is provided with a circular groove (6 c) at the shaft end of the valve core;
one end of the output end of the rotating motor (1) sequentially penetrates through the valve body (7) and the valve sleeve (5) and extends into the valve sleeve (5), and is in sliding connection with one end of the valve core (6) through a rotating motor shaft sliding key groove (14); one side of the linear motor (9) is fixedly connected with a linear motor shaft (9 b), one end of the linear motor shaft (9 b) sequentially penetrates through the valve body (7) and the limiting clamping sleeve (10) and extends to the inside of the limiting clamping sleeve (10), and the end face of the linear motor shaft (9 b) extending to the inside of the limiting clamping sleeve (10) is fixedly connected with a thrust steel ball (9 c) matched with the valve core shaft end annular groove (6 c);
the rotary motor (1) is controlled to rotate clockwise for a certain angle, so that the valve core (6) also rotates clockwise for a certain angle along with the valve core, at the moment, a limiting clamping sleeve fixedly connected key block (10 a) in the limiting clamping sleeve (10) completely slides into the groove and is in close contact with a third contact surface (6 a 4), at the moment, a rectangular through opening (6 b) of the valve core is completely overlapped with a first window (5 a) of the valve sleeve, so that a through-flow valve opening is formed by the valve body (7), the valve sleeve (5) and the valve core (6), hydraulic oil flows out of the oil inlet (7 a), the first window (5 a) of the valve sleeve, the rectangular through opening (6 b) of the valve core and the oil outlet (7 b) in sequence, thus an oil-through passage is formed, and the proportional adjustment of the valve port flow of the dual-purpose valve can be realized through the rotation angle of the rotary motor (1) is realized by the proportion control of the rotation angle of the rotary motor, namely the working position of opening of the first-stage displacement valve port;
the rotating motor (1) rotates anticlockwise by a corresponding angle, so that a limiting clamping sleeve fixing key block (10 a) in the limiting clamping sleeve (10) is separated from a third contact surface (6 a 4) and is attached to a first contact surface (6 a 2), then the linear motor (9) is started, a linear motor shaft (9 b) continues to extend to push the valve core (6) to move leftwards, so that the limiting clamping sleeve fixing key block (10 a) in the limiting clamping sleeve (10) is separated from the first contact surface (6 a 2) first, then the limiting clamping sleeve fixing key block (10 a) in the limiting clamping sleeve (10) is completely separated from an arc-shaped slide way (6 a 1), the rotating motor (1) is started, a valve core rectangular through opening (6 b) is completely overlapped with a valve sleeve second window (5 b), a valve body (7), the valve sleeve (5) and the valve core (6) form a through-flow valve opening, hydraulic oil flows out from an oil inlet (7 a), the valve sleeve second window (5 b), the rectangular through opening (6 b) and the oil outlet (7 b) in sequence, so that an oil through-flow path is formed, the limiting clamping sleeve fixing key block (10 a) is completely separated from the arc-shaped slide way (6 a 1) and the rotating clamping sleeve (10) is not limited by the rotating clamping sleeve (1) at any time, the limiting clamping sleeve fixing key block is completely closed, and the valve is not limited by the rotating clamping sleeve (1) at any rotation valve is opened, and the valve is rapidly and the valve is not closed at any time, the vibration frequency of the valve can be proportionally controlled by proportionally controlling the rotating speed of the rotating motor (1), and the vibration amplitude of the valve can be proportionally controlled by proportionally controlling the axial displacement of the linear motor (9), so that the valve is the high-speed switch working position of the second-stage displacement valve port.
2. The dual-motor based dual-purpose proportional flow control and high-speed switch valve as claimed in claim 1, wherein: the other side of the linear motor (9) is fixedly connected with a linear motor adjusting hand wheel (9 a); the other side of the rotating motor (1) is fixedly connected with a rotating motor adjusting hand wheel (1 a).
3. The dual-motor based dual-purpose proportional flow control and high-speed switch valve as claimed in claim 1, wherein: the penetrating part of the output shaft of the rotating motor (1) and the valve body (7) is sealed through a framework oil seal structure (3); one end that case (6) is close to rotating electrical machines (1) output shaft fixedly connected with thrust bearing (11), and case (6) are located surface cover between thrust bearing (11) and skeleton oil blanket structure (3) and are equipped with return spring (4), and after linear electric motor (9) shrink reset, return spring (4) can act on thrust bearing (11) and make case (6) return to realize making whole valve automatic return zero position.
4. The dual-motor based dual-purpose proportional flow control and high-speed switch valve as claimed in claim 1, wherein: through the control of rotating electrical machines (1) and linear electric motor (9), change the cooperation relation between spacing circular bead (6 a) and spacing cutting ferrule (10), make it can confirm initial zero position working position fast, possess two-stage axial displacement, two left and right working positions after the first-stage displacement, can realize proportion flow control, the high-speed switch working position after the second-stage displacement, can realize high-flow quick break-make excitation, and its vibration frequency and vibration amplitude all can be proportionally adjusted.
5. A dual-motor based proportional flow control and high speed switch dual-purpose valve as claimed in claim 1 or 4, wherein: when the linear motor (9) is in the zero position, the limiting clamping sleeve fixedly connected key block (10 a) in the limiting clamping sleeve (10) is just clamped in the second contact surface (6 a 3) on the limiting shoulder (6 a), and the valve core rectangular through opening (6 b) is completely staggered with the valve sleeve first window (5 a), so that the valve body (7), the valve sleeve (5) and the valve core (6) cannot form a through-flow valve opening at the moment, that is to say, all valve ports of the dual-purpose valve are in a closed state and cannot be filled with oil, and the initial zero position working position of the dual-purpose valve is corresponding at the moment.
6. A dual-motor based proportional flow control and high speed switch dual-purpose valve as claimed in claim 1 or 4, wherein: along with the extension of the linear motor (9), the linear motor shaft (9 b) connected with the linear motor shaft (9 b) is driven to push the valve core (6) to move leftwards and axially, when the linear motor (9) works for a period of time, the linear motor shaft (9 b) extends out for a corresponding length, so that the valve core (6) moves leftwards for a corresponding distance, meanwhile, the upper surface of the limiting clamping sleeve fixedly connected key block (10 a) inside the limiting clamping sleeve (10) is always in close contact with the first contact surface (6 a 2), at the moment, the limiting clamping sleeve fixedly connected key block (10 a) inside the limiting clamping sleeve (10) and the third contact surface (6 a 4) are positioned on the same vertical surface, and the rectangular through opening (6 b) of the valve core and the valve sleeve first window (5 a) are also positioned on the same vertical surface, but still are in a staggered state, so that the valve body (7), the valve sleeve (5) and the valve core (6) cannot form a through-flow valve port, namely a first-stage displacement valve port closing working position.
7. The dual-motor based dual-purpose proportional flow control and high-speed switch valve as claimed in claim 1, wherein: the liquid flow passing through the valve sleeve first window (5 a) and the valve sleeve second window (5 b) is contained in the oil inlet (7 a) and the oil outlet (7 b).
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| CN201910715753.3A CN110319067B (en) | 2019-08-05 | 2019-08-05 | Dual-motor-based proportional flow control and high-speed switch dual-purpose valve |
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| CN110319067B true CN110319067B (en) | 2024-03-22 |
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| CN111336149B (en) * | 2020-03-26 | 2021-11-05 | 浙江大学宁波理工学院 | Valve plate of multi-way valve |
| CN111271333B (en) * | 2020-03-26 | 2021-08-24 | 浙江大学宁波理工学院 | Fault-tolerant hydraulic valve |
| CN111336150B (en) * | 2020-03-26 | 2021-08-20 | 浙江大学宁波理工学院 | Multi-way valve |
| CN114673706B (en) * | 2022-04-16 | 2023-01-31 | 福州大学 | Rotary high-speed switch valve with adjustable through-flow capacity and control method thereof |
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