CN110296119B - 2D valve core reciprocating swing and continuous rotation switching structure - Google Patents
2D valve core reciprocating swing and continuous rotation switching structure Download PDFInfo
- Publication number
- CN110296119B CN110296119B CN201910715791.9A CN201910715791A CN110296119B CN 110296119 B CN110296119 B CN 110296119B CN 201910715791 A CN201910715791 A CN 201910715791A CN 110296119 B CN110296119 B CN 110296119B
- Authority
- CN
- China
- Prior art keywords
- arc
- shaped notch
- valve core
- core body
- shoulder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
The invention discloses a switching structure for reciprocating swing and continuous rotation of a 2D valve core, which comprises a 2D valve core body and a limiting sleeve, wherein the left end of the 2D valve core body is fixedly connected with a buffering core rod, the outer surface of the right end of the 2D valve core body is fixedly connected with a limiting shoulder, one side of the limiting shoulder is respectively provided with a first arc-shaped notch and a second arc-shaped notch, and the outer surfaces of other shoulders are provided with radial arc-shaped notches. The 2D valve core reciprocating swing and continuous rotation switching structure well achieves the purpose that the hydraulic valve works in an excitation mode and a proportion reversing mode, well meets the use requirements of complex hydraulic systems which need proportion reversing and excitation and have certain control precision and dynamic characteristic requirements, and achieves the purposes that people can conveniently adjust the vibration frequency and the vibration amplitude of the hydraulic valve by improving the hydraulic valve core switching structure and simultaneously can control the proportion of hydraulic media well for reversing operation.
Description
Technical Field
The invention relates to the technical field of hydraulic valves, in particular to a 2D valve core reciprocating swing and continuous rotation switching structure.
Background
The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of the pressure distributing valve, is usually used in combination with an electromagnetic pressure distributing valve, can be used for remotely controlling the on-off of oil, gas and water pipeline systems of a hydropower station, is commonly used for clamping, controlling, lubricating and other oil pipelines, has direct type and pilot type parts, and can be divided into manual, electric control and hydraulic control according to a control method, and is used for controlling the pressure, flow and direction of the liquid in hydraulic transmission, wherein the pressure is controlled by a pressure control valve, the flow is controlled by a flow control valve, the on-off and flow direction is controlled by a direction control valve, and the hydraulic valve is classified according to functions: the flow valve, the pressure valve and the direction valve are divided into the following mounting modes: plate valve, tubular valve, stack valve, screw-thread cartridge valve and lid board valve, wherein case rotation type switching-over valve uses comparatively extensively.
When the existing spool rotary type reversing valve is used as an excitation valve, although the adjustment of the vibration frequency and the vibration amplitude is relatively easy, a single alternating current servo motor drives the spool to continuously rotate so as to realize the high-speed reversing of the fluid flow of the spool, so that the spool rotary type reversing valve has the problems that the spool rotary type reversing valve cannot be positioned in zero position, namely reversing median position, so that the proportional reversing control cannot be realized, the existing single reversing valve cannot meet the use requirements of complex hydraulic systems which need not only proportional reversing but also exciting and have certain control precision and dynamic characteristic requirements, the application range of the spool rotary type reversing valve has certain limitation, the adjustment of the vibration frequency and the vibration amplitude of the hydraulic valve can not be realized through improving the switching structure of the hydraulic spool, the control precision is not high, the aim of better controlling the proportion of hydraulic media to carry out reversing can not be fulfilled, and great inconvenience is brought to people.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a switching structure for reciprocating swing and continuous rotation of a 2D valve core, which solves the problems that the existing valve core rotary reversing valve cannot be positioned in a zero position, namely a reversing median position, so that proportional reversing control cannot be realized, the use requirements of complex hydraulic systems which need proportional reversing and excitation as well as have certain control precision and dynamic characteristic requirements cannot be met, the application range of the complex hydraulic system has certain limitations, the adjustment of the vibration frequency and the vibration amplitude of the hydraulic valve by improving the switching structure of the hydraulic valve core is not realized, the control precision is not high, and the purpose of reversing the proportion of a hydraulic medium cannot be better controlled can not be achieved.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a 2D case reciprocating swing and continuous rotation switch structure, includes 2D case body and stop collar, the left end fixedly connected with buffering core bar of 2D case body, the surface fixedly connected with spacing circular bead of 2D case body right-hand member, and first arc incision and second arc incision have been seted up respectively to one side of spacing circular bead, the surface that 2D case body is located between buffering core bar and the spacing circular bead is from left to right fixedly connected with circular bead I, circular bead II, circular bead III and circular bead IV in proper order, just first radial arc incision has been seted up to the surface of circular bead I, the radial arc incision of second is seted up to the surface of circular bead II, just the radial arc incision of third has been seted up to the surface of circular bead III, the radial arc incision of fourth is seted up to the surface of circular bead IV, the inner wall fixedly connected with of stop collar and the arc protruding piece of first arc incision and the looks adaptation of second arc incision.
Preferably, the 2D valve core body has two degrees of freedom, one is driven by an ac servo motor to perform circumferential rotation, the circumferential rotation comprises forward rotation and reverse rotation, the other is driven by a hybrid linear stepping motor to perform axial movement, and the axial movement comprises leftward movement and rightward movement.
Preferably, the number of the first radial arc-shaped notch, the second radial arc-shaped notch, the third radial arc-shaped notch and the fourth radial arc-shaped notch is four, and the four first radial arc-shaped notches are uniformly arranged along the circumferential direction of the shoulder I, and the four second radial arc-shaped notches are uniformly arranged along the circumferential direction of the shoulder II.
Preferably, four third radial arc-shaped slits are uniformly arranged along the circumferential direction of the shoulder iii, and four fourth radial arc-shaped slits are uniformly arranged along the circumferential direction of the shoulder iv.
Preferably, the adjacent first radial arc-shaped notch and the adjacent second radial arc-shaped notch are mutually staggered in the axial direction by an angle of 45 degrees, and the adjacent second radial arc-shaped notch and the adjacent third radial arc-shaped notch are mutually staggered in the axial direction by an angle of 45 degrees.
Preferably, adjacent third radial arc-shaped slits and fourth radial arc-shaped slits are offset from each other in the axial direction by an angle of 45 °.
Preferably, the axis of the bottom center of the second arc-shaped notch is completely staggered with the axes of the first radial arc-shaped notch, the second radial arc-shaped notch, the third radial arc-shaped notch and the fourth radial arc-shaped notch respectively.
Preferably, the number of the arc-shaped protruding blocks is two, and the two arc-shaped protruding blocks are uniformly arranged on the inner surface of the limit sleeve.
Preferably, an annular groove is formed in the end face of the right end of the 2D valve core body.
Preferably, the limit sleeve is fixedly arranged in the valve sleeve outside the 2D valve core body, and no relative movement exists.
(III) beneficial effects
The invention provides a switching structure for reciprocating swing and continuous rotation of a 2D valve core. Compared with the prior art, the method has the following beneficial effects:
(1) The 2D valve core reciprocating swinging and continuous rotating switching structure is characterized in that a limit shoulder is fixedly connected with the outer surface of the right end of a 2D valve core body, a first arc-shaped notch and a second arc-shaped notch are respectively formed in one side of the limit shoulder, a shoulder I, a shoulder II, a shoulder III and a shoulder IV are sequentially and fixedly connected with the outer surface of the 2D valve core body between a buffer core rod and the limit shoulder from left to right, a first radial arc-shaped notch is formed in the outer surface of the shoulder I, a second radial arc-shaped notch is formed in the outer surface of the shoulder II, a third radial arc-shaped notch is formed in the outer surface of the shoulder III, a fourth radial arc-shaped notch is formed in the outer surface of the shoulder IV, an arc-shaped protruding block matched with the first arc-shaped notch and the second arc-shaped notch is fixedly connected with the inner wall of a limit sleeve, the valve core is controlled by the mixed linear stepping motor to move left and right to control and work different stations of the hydraulic valve while the valve core is driven by the alternating current servo motor to continuously rotate so as to realize high-speed reversing of liquid flow, the purposes of exciting, zero position and work of the left and right stations of the hydraulic valve are well achieved, the proportional reversing control is realized, the use requirements of complex hydraulic systems which need proportional reversing and excitation and have certain control precision and dynamic characteristic requirements are well met, the problem that the application range of the valve core rotary reversing valve has certain limitation is avoided, the purposes of adjusting the vibration frequency and the vibration amplitude of the hydraulic valve by improving the switching structure of the hydraulic valve core, greatly improving the control precision and better controlling the proportion of hydraulic medium for reversing are realized, thereby greatly facilitating the use of the hydraulic reversing valve by people.
(2) This 2D case reciprocating swing and continuous rotation switch structure has the degree of freedom of two directions through 2D case body, and one is through exchanging servo motor drive 2D case body and do circumferential direction rotation, and circumferential direction rotation includes corotation and reversal, and another is through hybrid linear stepping motor drive 2D case body and do axial displacement, and axial displacement includes left movement and right movement, can realize through being connected the hydraulic pressure case structure with external exchange servo motor and hybrid linear stepping motor to this changes the cooperation relationship between limit shoulder structure and the stop collar structure realizes the reciprocating swing and the continuous rotation of hydraulic pressure case structure, thereby fine achieving automatic switch's purpose.
(3) This 2D case reciprocating swing and continuous rotation switch structure has offered the annular groove through the terminal surface at the right-hand member of 2D case body for place the steel ball on the mixed sharp stepper motor cover, thereby when making things convenient for mixed sharp stepper motor to promote the case to move about, can not influence the AC servo motor and drive the case and rotate, thereby guaranteed the normal switching work of case structure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the stop collar of the present invention;
FIG. 3 is a schematic structural view of the 2D valve core body and stop collar of the present invention;
FIG. 4 is a schematic view of the present invention in a null position;
FIG. 5 is a schematic view of the present invention in an extrusion station;
FIG. 6 is a schematic view of the present invention in a left operating position;
FIG. 7 is a schematic view of the present invention in a right operational position;
fig. 8 is a schematic structural view of the present invention in excitation mode.
In the figure, a 1-2D valve core body, a 2-fourth radial arc notch, a 3-first arc notch, a 4-limit sleeve, a 5-second arc notch, a 6-arc protruding block, a 7-buffer core rod, an 8-limit shoulder, a 9-shoulder I, a 10-shoulder II, a 11-shoulder III, a 12-shoulder IV, a 13-first radial arc notch, a 14-second radial arc notch, a 15-third radial arc notch and a 16-annular groove are formed.
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. 1-8, the embodiment of the invention provides a technical scheme: A2D valve core reciprocating swing and continuous rotation switching structure comprises a 2D valve core body 1 and a limit sleeve 4,2D, wherein the left end of the valve core body 1 is fixedly connected with a buffer core bar 7, the outer surface of the right end of the 2D valve core body 1 is fixedly connected with a limit shoulder 8, one side of the limit shoulder 8 is respectively provided with a first arc-shaped notch 3 and a second arc-shaped notch 5,2D, the outer surface of the valve core body 1 between the buffer core bar 7 and the limit shoulder 8 is sequentially and fixedly connected with a shoulder I9, a shoulder II 10, a shoulder III 11 and a shoulder IV 12 from left to right, the outer surface of the shoulder I9 is provided with a first radial arc-shaped notch 13, the outer surface of the shoulder II 10 is provided with a second radial arc-shaped notch 14, the outer surface of the shoulder III 11 is provided with a third radial arc-shaped notch 15, the outer surface of the IV 12 is provided with a fourth radial arc-shaped notch 2, the inner wall of the limit sleeve 4 is fixedly connected with an arc-shaped protruding block 6,2D valve core body 1 which is matched with the first arc-shaped notch 3 and the second arc-shaped notch 5, one of the two degrees of freedom is that the alternating current servo motor drives the 2D valve core body 1 to rotate in the circumferential direction, the circumferential rotation comprises forward rotation and reverse rotation, the other one of the two degrees of freedom is that the hybrid linear stepping motor drives the 2D valve core body 1 to move in the axial direction, the axial movement comprises leftward movement and rightward movement, the number of the first radial arc-shaped notch 13, the second radial arc-shaped notch 14, the third radial arc-shaped notch 15 and the fourth radial arc-shaped notch 2 is four, the four first radial arc-shaped notches 13 are uniformly arranged along the circumferential direction of the shoulder I9, the four second radial arc-shaped notches 14 are uniformly arranged along the circumferential direction of the shoulder II 10, the four third radial arc-shaped notches 15 are uniformly arranged along the circumferential direction of the shoulder II 11, and four fourth radial arc incisions 2 are evenly arranged along the circumferential direction of the shoulder IV 12, the adjacent first radial arc incision 13 and second radial arc incision 14 are staggered with each other in the axial direction, the staggered angle is 45 degrees, the adjacent second radial arc incision 14 and third radial arc incision 15 are staggered with each other in the axial direction, the staggered angle is 45 degrees, the adjacent third radial arc incision 15 and fourth radial arc incision 2 are staggered with each other in the axial direction, the staggered angle is 45 degrees, the axis of the bottom center of the second arc incision 5 is completely staggered with the axis of the first radial arc incision 13, the axis of the second radial arc incision 14, the axis of the third radial arc incision 15 and the axis of the fourth radial arc incision 2 respectively, the number of the arc protruding blocks 6 is two, the two arc protruding blocks 6 are evenly distributed on the inner surface of the limit sleeve 4, and the end face of the right end of the 2D valve core body 1 is provided with the annular groove 16.
Working principle: 1) The switching structure is in zero position
Referring to fig. 4, when the hybrid linear stepper motor is at the zero position, the arc-shaped protruding block 6 inside the limit sleeve 4 is just clamped at the bottom center of the second arc-shaped notch 5 on the limit shoulder 8, and because the axis of the bottom center of the second arc-shaped notch 5 is completely staggered with the axes of the first radial arc-shaped notch 13, the second radial arc-shaped notch 14, the third radial arc-shaped notch 15 and the fourth radial arc-shaped notch 2 on the shoulder i 9, the shoulder ii 10, the shoulder iii 11 and the shoulder iv 12 on the 2D valve core body 1, a through-flow valve opening cannot be formed between the axes of the second arc-shaped notch 5 and the windows opened on the valve sleeve outside the shoulder i 9, the shoulder ii 10, the shoulder iii 11 and the shoulder iv 12, that is, all the valve openings of the 2D valve core reciprocating swing and continuous rotation switching structure are in the closed state at this moment, and the corresponding is the zero position of the 2D valve core reciprocating swing and continuous rotation switching structure.
2) The switching structure is in the extrusion position
Along with the extension of the hybrid linear stepper motor, the hybrid linear stepper motor sleeve connected with the hybrid linear stepper motor sleeve is driven to push the 2D valve core body 1 to move leftwards and axially, and at the moment, the hybrid linear stepper motor sleeve can be divided into two stages of displacement which respectively correspond to different working modes, including a proportional reversing mode and an excitation mode, and the hybrid linear stepper motor sleeve is elaborated as follows:
(1) First-stage displacement-proportional reversing mode
Along with the extension of the hybrid linear stepping motor, the 2D valve core body 1 is pushed to move axially leftwards, when the hybrid linear stepping motor is in a zero position, the arc-shaped protruding block 6 inside the limiting sleeve 4 is just clamped at the bottom center of the second arc-shaped notch 5 on the limiting shoulder 8 at the right end of the 2D valve core body 1, but along with the axial movement of the 2D valve core body 1 leftwards, the bottom center of the second arc-shaped notch 5 on the limiting shoulder 8 at the right end of the 2D valve core body 1 is gradually separated from the arc-shaped protruding block 6 inside the limiting sleeve 4 until the arc-shaped protruding block is completely separated from the constraint of the whole second arc-shaped notch 5, namely the first-stage displacement.
Referring to fig. 5, at this time, the arc-shaped protruding block 6 inside the stop collar 4 has completely separated from the constraint of the whole second arc-shaped notch 5, but is simultaneously constrained by the first arc-shaped notch 3, so that the 2D valve core body 1 can rotate positively and negatively within a certain angle range under the drive of the ac servo motor, and the angle range set by the invention is 45 °. The following will explain different working positions of the 2D spool reciprocating swing and continuous rotation switching structure corresponding to the two working states of forward rotation and reverse rotation of the ac servo motor:
i-left working position of AC Servo Motor forward rotation (counterclockwise)
After the first-stage displacement shown in fig. 6 is completed, the ac servo motor rotates forward by a certain angle until the arc-shaped protruding block 6 inside the stop collar 4 contacts the contact surface between the first arc-shaped notch 3 and the second arc-shaped notch 5 on the 2D valve core body 1, at this moment, the 2D valve core body 1 is limited and cannot rotate continuously, at this moment, the second radial arc-shaped notch 14 and the fourth radial arc-shaped notch 2 on the shoulder ii 10 and the shoulder iv 12 of the 2D valve core body 1 and the window on the valve sleeve form a through-flow valve opening, so that hydraulic oil which cannot pass originally can smoothly circulate through the valve opening, the flow passing through the valve opening of the hydraulic valve can be regulated proportionally by controlling the rotation angle of the ac servo motor, the leftward proportional reversing is realized, and at this moment, the corresponding left working position of the 2D valve core reciprocating swing and continuous rotation switching structure is realized.
Ii the alternating current servo motor reverses (clockwise) -right working position
After the first-stage displacement shown in fig. 7 is completed, the alternating current servo motor reverses a certain angle until the arc-shaped protruding block 6 in the limiting sleeve 4 contacts the contact surface between the first arc-shaped notch 3 and the second arc-shaped notch 5 on the 2D valve core body 1, at the moment, the 2D valve core body 1 is limited and cannot rotate continuously, at the moment, the first radial arc-shaped notch 13 and the third radial arc-shaped notch 15 on the shoulder I9 and the shoulder III 11 of the 2D valve core body 1 and the window on the valve sleeve form a through-flow valve opening, so that hydraulic oil which cannot pass originally can smoothly circulate through the valve opening, the flow passing through the valve opening of the hydraulic valve can be proportionally regulated through proportionally controlling the rotation angle of the alternating current servo motor, the rightward proportional reversing is realized, and at the moment, the corresponding right working position of the 2D valve core reciprocating swing and continuous rotation switching structure is realized.
(2) Second level displacement-excitation mode
Referring to fig. 8, immediately following the further extension of the hybrid linear stepper motor, the contact surface between the first arc notch 3 and the second arc notch 5 on the 2D valve core body 1 will gradually separate from the arc-shaped protrusion block 6 inside the stop collar 4, and finally the arc-shaped protrusion block 6 inside the stop collar 4 will completely separate from the constraint of the first arc-shaped notch 3, at this moment, the 2D valve core body 1 will not be completely constrained by the stop collar 4, the 2D valve core body 1 can be driven by the ac servo motor to rotate continuously at a specific speed, the shoulder i 9, ii 10, iii 11 and iv 12 of the 2D valve core body 1 are continuously rotated at a specific speed, the second radial arc notch 14, the third radial arc notch 15 and the fourth radial arc notch 2 will be continuously opened and closed with the flow valve port formed by the windows on the stop collar 4, wherein i 9 and iii are a group, ii 10 and iv 12 are a group, at this moment, the same group of on-off conditions are consistent, the same, the ac servo motor drives the 2D valve core body 1 to rotate continuously, the amplitude of the vibration proportional valve can be controlled continuously by the fact that the amplitude of the ac servo motor is continuously changed by the vibration valve, the amplitude of the vibration ratio can be controlled by the continuous change of the amplitude of the vibration valve, and the vibration ratio can be controlled by the vibration ratio.
3) The hybrid linear stepper motor is in the retracted position
Along with the withdrawal of the hybrid linear stepping motor, the 2D valve core body 1 is pushed to move rightward and axially under the action of the resilience force of the spring matched with the buffer core rod 7, and after the 2D valve core body 1 continuously rotates in the excitation mode, the rotation stop position of the 2D valve core body is arbitrary, so that two conditions exist:
first case
The arc-shaped protruding block 6 inside the limit sleeve 4 just slides into the second arc-shaped notch 5 on the 2D valve core body 1, and because of the cambered surface structure at the front end of the arc-shaped protruding block 6, the 2D valve core body 1 can easily slide into the bottom center along the cambered surface of the second arc-shaped notch 5 under the action of the resilience force of the spring, and according to the above detailed description of the working state of the hybrid linear stepping motor when the hybrid linear stepping motor is in the zero position, the corresponding mode is the neutral position of the switching structure of reciprocating swing and continuous rotation of the 2D valve core, namely the zero position, and oil can not be communicated.
Second case
The arc protruding block 6 inside the limit sleeve 4 firstly touches the first arc notch 3 on the 2D valve core body 1, at this moment, the 2D valve core body 1 can easily slide into the second arc notch 5 along the arc surface of the first arc notch 3 under the action of the resilience force of the spring, at this moment, the first situation is changed, the 2D valve core body 1 can easily slide into the bottom center along the arc surface of the second arc notch 5 under the action of the resilience force of the spring, and the same can be known according to the detailed description of the working state of the hybrid linear stepping motor when the hybrid linear stepping motor is at the zero position, at this moment, the corresponding is the middle position of the switching structure of the reciprocating swing and continuous rotation of the 2D valve core, namely the zero position, and oil can not be communicated.
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 (10)
1. A2D case reciprocating swing and continuous rotation switch structure, its characterized in that: the valve comprises a 2D valve core body (1) and a limiting sleeve (4), wherein the left end of the 2D valve core body (1) is fixedly connected with a buffering core rod (7), and the outer surface of the right end is fixedly connected with a limiting shoulder (8); a first arc-shaped notch (3) and a second arc-shaped notch (5) are respectively formed in one side of the limiting shoulder (8); the outer surface of the 2D valve core body (1) between the buffer core rod (7) and the limiting shoulder (8) is fixedly connected with a shoulder I (9), a shoulder II (10), a shoulder III (11) and a shoulder IV (12) in sequence from left to right; the outer surface of the shoulder I (9) is provided with a first radial arc-shaped notch (13); the outer surface of the shoulder II (10) is provided with a second radial arc-shaped notch (14); a third radial arc-shaped notch (15) is formed in the outer surface of the shoulder III (11); a fourth radial arc-shaped notch (2) is formed in the outer surface of the shoulder IV (12); an arc-shaped protruding block (6) matched with the first arc-shaped notch (3) and the second arc-shaped notch (5) is fixedly connected to the inner wall of the limit sleeve (4); the first radial arc-shaped notch (13) and the second radial arc-shaped notch (14) are staggered with each other in the axial direction, and the staggered angle is 45 degrees; the second radial arc-shaped notch (14) and the third radial arc-shaped notch (15) are staggered with each other in the axial direction, and the staggered angle is 45 degrees; the third radial arc-shaped notch (15) and the fourth radial arc-shaped notch (2) are staggered with each other in the axial direction, and the staggered angle is 45 degrees;
the 2D valve core body (1) has two degrees of freedom, one is driven by an alternating current servo motor to circumferentially rotate the 2D valve core body (1), the circumferential rotation comprises forward rotation and reverse rotation, the other is driven by a hybrid linear stepping motor to axially move the 2D valve core body (1), and the axial movement comprises leftward movement and rightward movement; along with the extension of the hybrid linear stepping motor, the 2D valve core body (1) is pushed to move leftwards and axially, when the hybrid linear stepping motor is in a zero position, an arc-shaped protruding block (6) in the limiting sleeve (4) is just clamped at the bottom center of a second arc-shaped notch (5) on a limiting shoulder (8) at the right end of the 2D valve core body (1), but along with the leftwards and axially movement of the 2D valve core body (1), the bottom center of the second arc-shaped notch (5) on the limiting shoulder (8) at the right end of the 2D valve core body (1) is gradually separated from the arc-shaped protruding block (6) in the limiting sleeve (4) until the whole second arc-shaped notch (5) is completely separated from the constraint of the first arc-shaped notch (3) at the same time, so that the 2D valve core body (1) can rotate positively and negatively in a certain angle range under the driving of an alternating current servo motor, and the left working position and the right working position of a proportional reversing mode of first-stage displacement are respectively corresponding; along with the further extension of the hybrid linear stepper motor, the contact surface between the first arc notch (3) and the second arc notch (5) on the 2D valve core body (1) can be gradually separated from the arc-shaped protruding block (6) in the limiting sleeve (4), and finally the arc-shaped protruding block (6) in the limiting sleeve (4) can be completely separated from the constraint of the first arc notch (3), at the moment, the 2D valve core body (1) is not completely constrained by the limiting sleeve (4), the 2D valve core body (1) can be driven by the alternating current servo motor to continuously rotate at a specific speed, and the through-flow valve port continuously and alternately changes, so that the corresponding excitation mode of the second-stage displacement is adopted at the moment.
2. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: the number of the first radial arc-shaped notch (13), the second radial arc-shaped notch (14), the third radial arc-shaped notch (15) and the fourth radial arc-shaped notch (2) is four; the four first radial arc-shaped cuts (13) are uniformly arranged along the circumferential direction of the shoulder I (9); the four second radial arc-shaped notches (14) are uniformly arranged along the circumferential direction of the shoulder II (10); the four third radial arc-shaped cuts (15) are uniformly arranged along the circumferential direction of the shoulder III (11); the four fourth radial arc-shaped notches (2) are uniformly arranged along the circumferential direction of the shoulder IV (12).
3. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: the axis of the bottom center of the second arc-shaped notch (5) is completely staggered with the axes of the first radial arc-shaped notch (13), the second radial arc-shaped notch (14), the third radial arc-shaped notch (15) and the fourth radial arc-shaped notch (2) respectively.
4. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: the number of the arc-shaped protruding blocks (6) is two, and the two arc-shaped protruding blocks (6) are uniformly arranged on the inner surface of the limit sleeve (4).
5. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: an annular groove (16) is formed in the end face of the right end of the 2D valve core body (1) and is used for placing steel balls on a mixed linear stepping motor sleeve, so that the mixed linear stepping motor can conveniently push a valve core to move left and right, and meanwhile, an alternating current servo motor cannot be influenced to drive the valve core to rotate, and normal switching operation of a valve core structure is guaranteed.
6. The 2D spool reciprocal swing and continuous rotation switching structure as defined in claim 1 or 4, wherein: the limiting sleeve (4) is fixedly arranged in the valve sleeve outside the 2D valve core body (1) and does not move relatively.
7. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: when the hybrid linear stepper motor is in the zero position, because the axes of the bottom centers of the second arc-shaped notch (5) and the axes of the first radial arc-shaped notch (13), the second radial arc-shaped notch (14), the third radial arc-shaped notch (15) and the fourth radial arc-shaped notch (2) on the shoulder I (9), the shoulder II (10), the shoulder III (11) and the shoulder IV (12) on the 2D valve core body (1) are completely staggered, a through-flow valve opening cannot be formed between the axes of the first radial arc-shaped notch (13), the second radial arc-shaped notch (14), the third radial arc-shaped notch (15) and the fourth radial arc-shaped notch (2) on the shoulder I (9), the shoulder II (10), the shoulder III (11) and the shoulder IV (12) and the windows opened on the valve sleeve outside the 2D valve core body (1), that is in other words, all valve openings are in the closed state, and the corresponding zero position of the switching structure cannot be realized.
8. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: when the rotary valve is in the left working position of the proportional reversing mode of the first-stage displacement, the alternating current servo motor rotates positively by a certain angle until the arc-shaped protruding block (6) in the limiting sleeve (4) is contacted with the contact surface between the first arc-shaped notch (3) and the second arc-shaped notch (5) on the 2D valve core body (1), at the moment, the 2D valve core body (1) is limited and cannot rotate continuously, at the moment, the second radial arc-shaped notch (14) and the fourth radial arc-shaped notch (2) on the shoulder II (10) and the shoulder IV (12) of the 2D valve core body (1) and the window on the valve sleeve form a through-flow valve opening, so that hydraulic oil which cannot pass originally can smoothly circulate through the through-flow valve opening, and the flow through the through-flow opening can be regulated in proportion by controlling the rotation angle of the alternating current servo motor, so that the leftward proportional reversing is realized.
9. The 2D spool reciprocal swing and continuous rotation switching mechanism of claim 1, wherein: when the hydraulic valve is in the right working position of the proportional reversing mode of the first-stage displacement, the alternating current servo motor reverses a certain angle until an arc-shaped protruding block (6) in the limiting sleeve (4) is contacted with a contact surface between a first arc-shaped notch (3) and a second arc-shaped notch (5) on the 2D valve core body (1), at the moment, the 2D valve core body (1) is limited and cannot rotate continuously, at the moment, a first radial arc-shaped notch (13) and a third radial arc-shaped notch (15) on a shoulder I (9) and a shoulder III (11) of the 2D valve core body (1) and a window on the valve sleeve form a through valve opening, hydraulic oil which cannot pass originally can smoothly circulate through the through valve opening, and the flow through the through valve opening can be proportionally regulated by controlling the rotation angle of the alternating current servo motor, so that the rightward proportional reversing is realized.
10. The 2D spool reciprocal swing and continuous rotation switching structure as defined in claim 1 or 7, wherein: along with the withdrawal of the hybrid linear stepping motor, the 2D valve core body (1) is pushed to move rightwards and axially under the action of the resilience force of a spring matched with the buffer core rod (7), and the rotation stop position of the 2D valve core body (1) is arbitrary after the 2D valve core body (1) continuously rotates in an excitation mode, so that two conditions exist: the first condition is that an arc-shaped protruding block (6) in the limiting sleeve (4) just slides into a second arc-shaped notch (5) on the 2D valve core body (1), and the 2D valve core body (1) can easily slide into the bottom center along the arc surface of the second arc-shaped notch (5) under the action of the resilience force of a spring due to the arc surface structure at the front end of the arc-shaped protruding block (6), and according to the working state when the hybrid linear stepping motor is in a zero position, the corresponding zero position of the switching structure is the zero position at the moment, so that oil cannot be introduced; the second condition is that the arc-shaped protruding block (6) inside the limit sleeve (4) firstly collides with the first arc-shaped notch (3) on the 2D valve core body (1), at the moment, the 2D valve core body (1) can easily slide into the second arc-shaped notch (5) along the arc surface of the first arc-shaped notch (3) under the action of the resilience force of the spring, at the moment, the second arc-shaped notch (5) is changed into the first condition, the 2D valve core body (1) can easily slide into the bottom center along the arc surface of the second arc-shaped notch (5) under the action of the resilience force of the spring, and meanwhile, according to the working state when the hybrid linear stepping motor is in the zero position, the corresponding zero position of the switching structure can not be filled with oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715791.9A CN110296119B (en) | 2019-08-05 | 2019-08-05 | 2D valve core reciprocating swing and continuous rotation switching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715791.9A CN110296119B (en) | 2019-08-05 | 2019-08-05 | 2D valve core reciprocating swing and continuous rotation switching structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110296119A CN110296119A (en) | 2019-10-01 |
| CN110296119B true CN110296119B (en) | 2024-03-29 |
Family
ID=68032637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910715791.9A Active CN110296119B (en) | 2019-08-05 | 2019-08-05 | 2D valve core reciprocating swing and continuous rotation switching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296119B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07150516A (en) * | 1993-11-30 | 1995-06-13 | Sakai Jukogyo Kk | Exciting device for variable amplitude vibrating roller |
| CN101183038A (en) * | 2007-12-14 | 2008-05-21 | 浙江工业大学 | Electrohydraulic excitation controlling valve |
| CN101787988A (en) * | 2010-01-19 | 2010-07-28 | 浙江大学 | Valve core rotary type four-way high-speed change valve for hydraulic vibration exciter |
| CN202690598U (en) * | 2012-06-28 | 2013-01-23 | 浙江大学 | Electro-hydraulic vibration exciter |
| CN103256401A (en) * | 2013-04-27 | 2013-08-21 | 浙江工业大学 | Prestretching-pretwisting type full-bridge 2D electro-hydraulic proportional directional valve |
| CN103411001A (en) * | 2013-08-01 | 2013-11-27 | 江海兵 | Excitation valve |
| CN203516258U (en) * | 2013-10-11 | 2014-04-02 | 安徽理工大学 | Novel manually rotating type reversing valve |
| CN103806406A (en) * | 2014-02-24 | 2014-05-21 | 浙江大学宁波理工学院 | Wave maker based on hydraulic drive mode |
| CN104179742A (en) * | 2014-07-22 | 2014-12-03 | 西安交通大学 | High-speed hydraulic reversing slide valve |
| CN104533778A (en) * | 2015-01-01 | 2015-04-22 | 吉林大学 | Multi-head pump reliability test stand of heavy-duty machine tool hydrostatic guideway system |
| CN105562814A (en) * | 2016-03-17 | 2016-05-11 | 浙江工业大学 | Vibration broaching method based on 2D shock excitation valve |
| CN206175386U (en) * | 2016-11-21 | 2017-05-17 | 湖南众航科技有限公司 | Hydraulic system fault simulation and dismouting test bench |
| CN107883016A (en) * | 2017-11-21 | 2018-04-06 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve valve element |
| CN210218281U (en) * | 2019-08-05 | 2020-03-31 | 安徽理工大学 | 2D valve core reciprocating swing and continuous rotation switching structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19738396B4 (en) * | 1997-09-03 | 2005-10-20 | Bosch Gmbh Robert | Slide bearing for a shaft |
| JP5389570B2 (en) * | 2009-08-25 | 2014-01-15 | 株式会社不二工機 | Multi-way selector valve |
-
2019
- 2019-08-05 CN CN201910715791.9A patent/CN110296119B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07150516A (en) * | 1993-11-30 | 1995-06-13 | Sakai Jukogyo Kk | Exciting device for variable amplitude vibrating roller |
| CN101183038A (en) * | 2007-12-14 | 2008-05-21 | 浙江工业大学 | Electrohydraulic excitation controlling valve |
| CN101787988A (en) * | 2010-01-19 | 2010-07-28 | 浙江大学 | Valve core rotary type four-way high-speed change valve for hydraulic vibration exciter |
| CN202690598U (en) * | 2012-06-28 | 2013-01-23 | 浙江大学 | Electro-hydraulic vibration exciter |
| US9970464B1 (en) * | 2013-04-27 | 2018-05-15 | Zhejiang University Of Technology | Pre-tensioning-pre-twisting full-bridge 2D electro-hydraulic proportional directional valve |
| CN103256401A (en) * | 2013-04-27 | 2013-08-21 | 浙江工业大学 | Prestretching-pretwisting type full-bridge 2D electro-hydraulic proportional directional valve |
| CN103411001A (en) * | 2013-08-01 | 2013-11-27 | 江海兵 | Excitation valve |
| CN203516258U (en) * | 2013-10-11 | 2014-04-02 | 安徽理工大学 | Novel manually rotating type reversing valve |
| CN103806406A (en) * | 2014-02-24 | 2014-05-21 | 浙江大学宁波理工学院 | Wave maker based on hydraulic drive mode |
| CN104179742A (en) * | 2014-07-22 | 2014-12-03 | 西安交通大学 | High-speed hydraulic reversing slide valve |
| CN104533778A (en) * | 2015-01-01 | 2015-04-22 | 吉林大学 | Multi-head pump reliability test stand of heavy-duty machine tool hydrostatic guideway system |
| CN105562814A (en) * | 2016-03-17 | 2016-05-11 | 浙江工业大学 | Vibration broaching method based on 2D shock excitation valve |
| CN206175386U (en) * | 2016-11-21 | 2017-05-17 | 湖南众航科技有限公司 | Hydraulic system fault simulation and dismouting test bench |
| CN107883016A (en) * | 2017-11-21 | 2018-04-06 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve valve element |
| CN210218281U (en) * | 2019-08-05 | 2020-03-31 | 安徽理工大学 | 2D valve core reciprocating swing and continuous rotation switching structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110296119A (en) | 2019-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110319238B (en) | High-flow electrohydraulic proportional reversing excitation dual-purpose valve | |
| CN109989953B (en) | Dual-motor-driven juxtaposed dual-valve-core rotary type multifunctional hydraulic regulating valve | |
| CN103851225A (en) | Rotary multi-way reversing valve | |
| CN110285238B (en) | Rotary valve core switching mechanism based on cross limiting port | |
| CN110319067B (en) | Dual-motor-based proportional flow control and high-speed switch dual-purpose valve | |
| CN110332168B (en) | Proportional flow control and high-speed switch dual-purpose valve based on two-degree-of-freedom motor | |
| CN101985988B (en) | Rotary type multi-way switching valve | |
| CN110296119B (en) | 2D valve core reciprocating swing and continuous rotation switching structure | |
| CN210240163U (en) | Automatic switching structure applied to double-freedom-degree rotary valve core | |
| CN210218281U (en) | 2D valve core reciprocating swing and continuous rotation switching structure | |
| CN210218788U (en) | Rotary valve core switching mechanism based on bidirectional torsion spring | |
| CN210196552U (en) | Rotary valve core switching mechanism based on cross limiting port | |
| CN110296118B (en) | Be applied to automatic switch-over structure of two degrees of freedom rotary valve case | |
| CN208764023U (en) | A kind of hydraulic cylinder and hydraulic system | |
| CN110319242B (en) | Rotary valve core switching mechanism based on bidirectional torsion spring | |
| CN210461782U (en) | Large-flow electro-hydraulic proportional reversing and exciting dual-purpose valve | |
| CN104676043B (en) | A kind of refrigeration system and its four-way reversing valve | |
| JPH08128553A (en) | Fluid controlling valve | |
| CN210343900U (en) | Dual-purpose valve for proportional flow control and high-speed switch based on dual motors | |
| CN210317964U (en) | Proportional flow control and high-speed switch dual-purpose valve based on two-degree-of-freedom motor | |
| CN104344014A (en) | Four-way valve and air conditioner | |
| CN207796227U (en) | Reversal valve and water purifier | |
| CN114017525A (en) | Control valve | |
| CN105757025A (en) | Large-flow three-way changeover valve of hollow-structure valve core | |
| CN208364856U (en) | A kind of gas liquid two purpose high frequency rotary valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |