CN105545856A - Numerical control rotary core type proportional servo valve - Google Patents
Numerical control rotary core type proportional servo valve Download PDFInfo
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- CN105545856A CN105545856A CN201610090251.2A CN201610090251A CN105545856A CN 105545856 A CN105545856 A CN 105545856A CN 201610090251 A CN201610090251 A CN 201610090251A CN 105545856 A CN105545856 A CN 105545856A
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- main valve
- core
- guide
- communicated
- chamber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston
Abstract
The invention relates to a numerical control rotary core type proportional servo valve. The numerical control rotary core type proportional servo valve comprises a servo motor, a supporting seat, a rotary core, a pilot piston, a main valve core, a main valve body, a spherical sleeve, a main bonnet and a pilot valve body, wherein a main valve cavity is formed in the middle of the main valve body, and an oil return port, a pressure oil port and at least two work oil ports are communicated with the main valve cavity and formed in the main valve body; the right end surface of the main valve core and the inner wall of the spherical sleeve constitute a first control cavity; a pilot valve cavity is formed in the middle of the pilot valve body, and the left end surface of the pilot piston and the inner wall of the pilot valve cavity constitute a second control cavity; a pressure oil channel and an oil return cavity are formed in the pilot valve body; an inner cavity is formed in the pilot piston, the right end of the rotary core is arranged in the inner cavity, and the servo motor is fixedly connected with the left end of the rotary core. The numerical control rotary core type proportional servo valve has the benefits as follows: compared with a proportion electro-magnet, the servo motor has good servo motor linearity and unlimited linear range, high-precision open-loop proportional servo control can be realized conveniently with a digital technology, and the proportional servo valve is simple in structure, flexible to control, convenient to use and high in reliability.
Description
Technical field
The present invention relates to a kind of numerical control and revolve core type proportional servo valve.
Background technique
An existing Chinese invention patent application file, its application number is 95196278.7, a kind of pilot controlled servo-valve of this disclosure of the invention has four main flow chambeies, controls the main control spool that slides axially on limit with four, and the returning spring of the spring centering central position of restriction main control spool.One valve pocket has the annular opening corresponding to first, second, third main flow cavity, and corresponds to the open front of the 4th main flow cavity.Pressure balance face is formed by the second front surface of the main control spool being positioned at spring chamber.Pressure in 4th main flow cavity is acted on pressure balance face by discharge channel by main control spool.
An existing Chinese utility model patent, its application number is 201020607491.3, and the utility model relates to a kind of proportional electromagnet type servo valve, particularly proportional electromagnet type servo valve equipment.It is by valve body, spool, valve pocket, vexed plate, spring seat, Returnning spring, proportion electro-magnet, push rod, dynamic iron, coil, displacement transducer and feedback rod composition, the side of valve body is provided with vexed plate, the other end Set scale electromagnet of valve body, the centre of valve body arranges valve pocket and spool, Returnning spring and spring seat are set between vexed plate and spool, the other end of spool contacts with push rod, in the middle of the dynamic iron of proportion electro-magnet, push rod is set, the feedback rod of the other end connection bit displacement sensor of push rod, the outer ring of dynamic iron arranges coil, the other end of proportion electro-magnet arranges displacement transducer.
Above-mentioned all kinds of proportional servo valves adopt direct acting Proportional valves to make its pilot valve, must installation position displacement sensor on pilot valve and main valve plug, and the digital amplifier of configure dedicated carries out double-closed-loop control to two-stage spool.Mechanical structure and automatical control system complexity, manufacture difficulty, use inconvenience.In addition, the localization rate of parts and components of existing all kinds of proportional servo valve and key components thereof is low, less economical.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of numerical control and revolves core type proportional servo valve, solves the deficiencies in the prior art.
The technological scheme that the present invention solves the problems of the technologies described above is as follows: core type proportional servo valve is revolved in a kind of numerical control, and it comprises actuating motor, bearing, revolves core, guide piston, main valve plug, main valve body, sphere cover, main valve lid, guide valve blocks; Bearing settlement is at the left end of guide valve blocks, and main valve body is arranged on the right-hand member of guide valve blocks; Main valve lid is arranged on the right-hand member of main valve body; Actuating motor is arranged on the left end of bearing; The middle part of main valve body is provided with main valve chamber, and main valve body is provided with the return opening, pressure oil port and at least two actuator ports that are connected with main valve chamber; Sphere is set on the right-hand member of main valve plug, and the inwall that the right side of main valve plug and sphere overlap forms the first control chamber, and the first control chamber is connected with pressure oil port; The middle part of guide valve blocks is provided with guide's valve pocket, and the right-hand member of guide's valve pocket is connected with the left end of main valve chamber; Guide piston is arranged in guide's valve pocket, the right-hand member of guide piston to extend in main valve body and is connected with the left end of main valve plug, the left side of guide piston and the inwall of guide's valve pocket form the second control chamber, and the compression face of guide piston in the second control chamber is greater than the compression face of main valve plug in the first control chamber; Guide valve blocks be provided with for guide piston and revolve core fuel feeding pressure oil passage and for guide piston and the oil back chamber revolving core oil extraction; Guide piston is provided with inner chamber, and the right-hand member revolving core is placed in inner chamber and can rotates in inner chamber, and the left end revolving core extend in bearing; The output shaft of actuating motor is fixedly connected with the left end revolving core, and drives and revolve core and rotate and the second control chamber is communicated with pressure oil passage and drives main valve plug to move right or the second control chamber is communicated with oil back chamber and main valve plug is moved to the left under the first control chamber oil pressure effect.
The invention has the beneficial effects as follows: 1, numerical control revolve core type proportional servo valve adopt actuating motor carry out electro-machanical conversion.Compared with proportion electro-magnet, servo motor linear degree is good, and the range of linearity is unlimited, and be convenient to realize High Precision Open-loop proportional servo by Digital Technique and control, description is many, and control flexibly, easy to use, reliability is high.2, numerical control is revolved core type proportional servo valve and is had high reliability.On the one hand, revolve the paired oil duct on core and two couple on guide piston oilhole that works and all have centrosymmetric speciality, make to act on the radial hydraulic pressure complete equilibrium of revolving on core, therefore revolve the rotation of core in guide piston as hydrostatic bearing, frictional resistance is very little.On the other hand, revolve the rotary motion of core in guide piston, be conducive to the oil film being formed and keep in the working clearance, that be conducive to overcoming hydraulic pressure with jam power that is machinery, thus effectively improve the global reliability that core type proportional servo valve is revolved in numerical control.3, numerical control revolve the rotary inertia revolving core of core type proportional servo valve and loading moment very little, thus this proportional servo valve has higher frequency response.4, numerical control revolve the primary valve part of core type proportional servo valve can as required, be designed to different servo precision, different Median Function and corresponding concrete structure, such as, be with main valve housing etc., revolve core type proportional servo valve with the numerical control forming different cultivars and function.5, compared with existing proportional servo valve, numerical control revolve core type proportional servo valve available digital technology realize High Precision Open-loop proportional servo control, mechanical structure and automatical control system simple, manufacturability, good economy performance, reliable operation, easy to use, safeguard simple and easy, can significantly promote production domesticization level.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 be Fig. 1 overlook partial sectional view;
Fig. 3 is the structural representation of guide piston;
Fig. 4 is the structural representation of main valve plug;
Fig. 5 is the first structural representation revolving core;
Fig. 6 is the second structural representation revolving core;
Fig. 7 is the schematic diagram that actuator port A is connected with pressure oil port;
Fig. 8 is the schematic diagram that actuator port B is connected with pressure oil port.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, core type proportional servo valve is revolved in a kind of numerical control, and it comprises actuating motor 1, bearing 2, revolves core 4, guide piston 5, main valve plug 7, main valve body 8, sphere cover 10, main valve lid 11, guide valve blocks 12.
Bearing 2 is arranged on the left end of guide valve blocks 12, and main valve body 8 is arranged on the right-hand member of guide valve blocks 12; Main valve lid 11 is arranged on the right-hand member of main valve body 8; Actuating motor 1 is arranged on the left end of bearing 2; The middle part of main valve body 8 is provided with main valve chamber, and main valve body 8 is provided with the return opening, pressure oil port and at least two actuator ports that are connected with main valve chamber.Actuator port of the present invention is set to two, is respectively actuator port A and the second actuator port B, and return opening, actuator port A, pressure oil port, the second actuator port B are from left to right successively set on main valve body 8.
The right-hand member that sphere cover 10 is arranged on main valve plug 7, the inwall that the right side of main valve plug 7 and sphere overlap 10 forms the first control chamber 15, first control chamber 15 and is connected with pressure oil port.Particularly, main valve plug 7 is provided with the Oil Guide passage 7.3 for being imported to by the pressure oil of pressure oil port in the first control chamber 15; One end of Oil Guide passage 7.3 is communicated with pressure oil port, and the other end of Oil Guide passage 7.3 is communicated with the first control chamber 15.
The middle part of guide valve blocks 12 is provided with guide's valve pocket, and the right-hand member of guide's valve pocket is connected with the left end of main valve chamber; Guide piston 5 is arranged in guide's valve pocket, and the right-hand member of guide piston 5 to extend in main valve body 8 and is connected with the left end of main valve plug 7, and particularly, the right-hand member of guide piston 5 passes through spherical-plug 6 and conflicts with main valve plug 7 and be connected; The left side of guide piston 5 and the inwall of guide's valve pocket form the second control chamber 16, and the compression face of guide piston 5 in the second control chamber 16 is greater than the compression face of main valve plug 7 in the first control chamber 15.When the present invention is in running order, first control chamber 15 is communicated with pressure oil port all the time, when the second control chamber 16 is communicated with pressure oil port, first control chamber 15 is identical with the pressure of the second control chamber 16 internal pressure oil, and the compression face of guide piston 5 is greater than the compression face of main valve plug 7, the pressure then promoting guide piston 5 is to the right greater than the pressure promoting main valve plug 7 left, and guide piston 5 moves right together with main valve plug 7; When the second control chamber 16 is communicated with return opening, the pressure that main valve plug 7 is promoted left, guide piston 5 is moved to the left together with main valve plug 7.
Guide valve blocks 12 be provided with for guide piston 5 and revolve core 4 fuel feeding pressure oil passage 12.1 and for guide piston 5 and the oil back chamber revolving core 4 oil extraction, above-mentioned oil back chamber is the part of guide's valve pocket near main valve chamber, in order to simplified structure, main valve body 8 is provided with passage pressure oil port be communicated with pressure oil passage 12.1, also can as required, be directly communicated with outer with pressure oil passage 12.1 for pressure oil by pipeline in reality.Guide piston 5 is provided with inner chamber, and the right-hand member revolving core 4 is placed in inner chamber and can rotates in inner chamber, and the left end revolving core 4 extend in bearing 2; The output shaft of actuating motor 1 is fixedly connected with the left end revolving core 4, actuating motor 1 drive revolve core 4 rotate make the second control chamber 16 be communicated with pressure oil passage 12.1 and drive main valve plug 7 to move right, or actuating motor 1 drive revolve core 4 rotation the second control chamber 16 is communicated with oil back chamber and main valve plug 7 is moved to the left under the first control chamber 15 oil pressure effect.Best, the output shaft of actuating motor 1 by coupling with revolve core 4 and be fixedly connected with, particularly, actuating motor 1 elects stepper motor, AC servo motor 1 or DC servo motor 1 as.
The present invention can make following optimal design:
As shown in Figure 3, further, guide piston 5 is provided with for pressure oil passage 12.1 and the first auxiliary oil channel 5.1, first auxiliary oil channel 5.1 of its inner space are provided with the first oilhole near inner chamber place; In order to eliminate hydraulic radial power to the adverse effect of revolving core 4 work, best, the first auxiliary oil channel 5.1 is arranged in pairs, and such first oilhole is also arranged in pairs, often pair of first oilhole is Central Symmetry and arranges, and Central Symmetry refers to that often pair of first oilhole is centrosymmetric about the axle center of revolving core 4.Best, the first auxiliary oil channel 5.1 is provided with annular groove 5.4 at the oil outlet place near pressure oil oil circuit.
Guide piston 5 is provided with for the second auxiliary oil channel 5.2, second auxiliary oil channel 5.2 of oil back chamber and inner space is provided with the second oilhole near inner chamber place; Guide piston 5 is provided with for the pressure release oilhole 5.5 to inner chamber pressure release, and particularly, pressure release oilhole 5.5 is arranged on inner chamber one end near main valve chamber, the relative movement being conducive to guide piston 5 like this and revolving between core 4; Revolve core 4 to be provided with for closed or unlatching the second oilhole and the first oilhole the protruding 4.2.1 in many groups cylndrical surface, often organize between the protruding 4.2.1 in cylndrical surface and be provided with the work oil duct 4.2.2 be connected with the second control chamber 16.In order to eliminate hydraulic radial power to the adverse effect of revolving core 4 work, best, the second auxiliary oil channel 5.2 is arranged in pairs, and such second oilhole is also arranged in pairs, often pair of second oilhole is Central Symmetry and arranges, and Central Symmetry refers to that often pair of second oilhole is centrosymmetric about the axle center of revolving core 4.
Further, the inwall of main valve chamber is from left to right set up in parallel five annular grooves successively, is respectively first ring connected in star 8.1, second annular groove 8.2, the 3rd annular groove 8.3, the 4th annular groove 8.4, five rings connected in star 8.5; Main valve body 8 is provided with the drainback passage 8.6 be communicated with five rings connected in star 8.5 by first ring connected in star 8.1; Return opening is communicated with first ring connected in star 8.1 or five rings connected in star 8.5, and invention adopts and is communicated with first ring connected in star 8.1 by return opening; Actuator port A is communicated with the second annular groove 8.2, and pressure oil port is communicated with the 3rd annular groove 8.3, and the second actuator port B is communicated with the 4th annular groove 8.4; Main valve plug 7 be provided be communicated with first ring connected in star 8.1 or the 3rd annular groove 8.3 for controlling the second annular groove 8.2 first control valve disc 7.1, main valve plug 7 is also provided be communicated with the 3rd annular groove 8.3 or five rings connected in star 8.5 for controlling the 4th annular groove 8.4 second control valve disc 7.2.Particularly, when the second annular groove 8.2 is communicated with first ring connected in star 8.1, the 4th annular groove 8.4 is communicated with the 3rd annular groove 8.3; When the second annular groove 8.2 is communicated with the 3rd annular groove 8.3, the 4th annular groove 8.4 is communicated with five rings connected in star 8.5.
Further, the present invention also comprises the first spring 9; First spring 9 is enclosed within the right-hand member of main valve plug 7, conflicts and be connected in the right side that the left end and first of the first spring 9 controls valve disc 7.1, conflicts and be connected in the left side that right-hand member and the sphere of the first spring 9 overlap 10.
The present invention also comprises spring seat 13 and the second spring 14; It should be noted that, the second spring 14 precompression is significantly greater than the precompression of the first spring 9; Spring seat 13 is arranged in bearing 2; Second spring 14 is arranged in bearing 2, and the left end of the second spring 14 is conflicted with actuating motor 1 and is connected, and the right-hand member of the second spring 14 is conflicted with spring seat 13 and is connected; The left end of guide piston 5 is provided with boss, and boss can to extend in bearing 2 and to conflict with spring seat 13 and be connected at work, also can throw off by the interior and spring seat 13 of retraction guide valve pocket, and boss is provided with the through hole be communicated with the second control chamber 16 by inner chamber.The left end of guide valve blocks 12 is provided with the positioning groove of assembling.
Guide piston 5 is closely connected with main valve plug 7 via the spherical-plug 6 being arranged on its right-hand member, when pressure oil is not led in the present invention, guide piston 5, spherical-plug 6 and main valve plug 7 are pushed into meta by by the spring force of the first spring 9, second spring 14, and now spring seat 13 is conflicted with the boss left side of guide piston 5 and the left end concave surface of guide valve blocks 12 simultaneously and is connected.
As shown in Figure 5, Figure 6, further, the two ends of revolving core 4 are set to seal section 4.1, are clearance seal between seal section 4.1 and inner chamber; The middle part of revolving core 4 is set to active section 4.2, and many protruding 4.2.1 in group cylndrical surface are arranged on active section 4.2; Tool withdrawal groove 4.3 is equipped with between two seal sections 4.1 and active section 4.2; Work oil duct 4.2.2 is arranged on active section 4.2, and is communicated with two tool withdrawal grooves 4.3.
The protruding 4.2.1 in cylndrical surface is set to one group, and one group of protruding 4.2.1 in cylndrical surface is provided with the protruding 4.2.1 in two cylndrical surface, and the protruding 4.2.1 in cylndrical surface is double-spiral structure, and work oil duct 4.2.2 is set to double spiral groove structure, the structure and whole active section 4.2 is centrosymmetric.Also two groups can be set to by the protruding 4.2.1 in cylndrical surface, often organize the protruding 4.2.1 in cylndrical surface and be provided with the protruding 4.2.1 in two cylndrical surface, the protruding 4.2.1 in two cylndrical surface often organized is double-spiral structure, and work oil duct 4.2.2 is set to double spiral groove structure, the structure and whole active section 4.2 is centrosymmetric.
Further, guide valve blocks 12 is provided with and can only does straight-line displacement and not revolvable guide finger for retraining guide piston 5.
Further, bearing 2, the connection part revolved between core 4, guide piston 5, main valve plug 7, main valve body 8, sphere cover 10, main valve lid 11, guide valve blocks 12 adopt and are tightly connected.
When revolving the meta that core 4 is in shown in Fig. 1, work oil duct 4.2.2 is neither communicated with the first oilhole, is not also communicated with the second oilhole, and actuator port A is controlled valve disc 7.1 by first and closes, and the second actuator port B is controlled valve disc 7.2 by second and closes.
When revolving core 4 turn several angle clockwise from the meta shown in Fig. 1, work oil duct 4.2.2 is communicated with the second oilhole, second control chamber 16 is by work oil duct 4.2.2, second oilhole, auxiliary oil channel is communicated with oil back chamber, because the first control chamber 15 is communicated with pressure oil port all the time, the then oil pressure that promoted left of main valve plug 7, guide piston 5 and main valve plug 7 are under the effect of oil pressure, overcome the elastic force of the second spring 14, promote guide piston 5 and be moved to the left certain distance together with main valve plug 7, guide piston 5 is in the process be moved to the left, second oilhole is hidden by the protruding 4.2.1 in cylndrical surface revolved on core 4 and diminishes very soon, until the second oilhole is closed by the protruding 4.2.1 in cylndrical surface revolved on core 4 again, as shown in Figure 7, namely main valve plug 7 is stabilized in new position, because the clockwise turn and main valve plug 7 of revolving core 4 are moved to the left, actuator port A is controlled valve disc 7.1 by first and opens, actuator port A is communicated with pressure oil port simultaneously, and the second actuator port B is also controlled valve disc 7.2 by second and opens, and the second actuator port B is communicated with return opening simultaneously.
When revolving core 4 turn several angle counterclockwise from the meta shown in Fig. 1, work oil duct 4.2.2 is communicated with the first oilhole, pressure oil passes through pressure oil port, auxiliary oil channel, first oilhole and work oil duct 4.2.2 enter the second control chamber 16, compression face due to guide piston 5 is greater than the compression face of main valve plug 7, therefore the oil pressure promoting guide piston 5 is to the right greater than the oil pressure promoting main valve plug 7 left, guide piston 5 is under the effect of oil pressure, overcome the oil pressure of main valve plug 7 and the elastic force of the first spring 9, promote main valve plug 7 to move right, guide piston 5 is in the process moved right, first oilhole is hidden by the protruding 4.2.1 in cylndrical surface revolved on core 4 and diminishes very soon, until the first oilhole is closed by the protruding 4.2.1 in cylndrical surface revolved on core 4 again, as shown in Figure 8, namely main valve plug 7 is stabilized in new position, because the counterclockwise turn and main valve plug 7 of revolving core 4 move right, actuator port A is controlled valve disc 7.1 by first and opens, actuator port A is communicated with return opening simultaneously, and the second actuator port B is controlled valve disc 7.2 by second and opens, and the second actuator port B is communicated with pressure oil port simultaneously.
Can obtain according to foregoing description, revolve suitable/counterclockwise turn several angle of core 4, guide piston 5 and main valve plug 7 immediately together with pro rata left/move right certain distance, and the speed of main valve plug 7 movement to revolve the speed that core 4 rotates and be directly proportional, so just form one-level and there is the degenerative hydraulic proportional amplifying element in position, can revolve suitable/counterclockwise rotation of core 4 and convert to pro rata the straight line ON/OFF motion of main valve plug 7, core type proportional servo valve is revolved in the numerical control forming difference in functionality and different size.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a core type proportional servo valve is revolved in numerical control, it is characterized in that: comprise actuating motor (1), bearing (2), revolve core (4), guide piston (5), main valve plug (7), main valve body (8), sphere cover (10), main valve lid (11), guide valve blocks (12);
Described bearing (2) is arranged on the left end of described guide valve blocks (12), and described main valve body (8) is arranged on the right-hand member of described guide valve blocks (12); Described main valve lid (11) is arranged on the right-hand member of described main valve body (8); Described actuating motor (1) is arranged on the left end of described bearing (2);
The middle part of described main valve body (8) is provided with main valve chamber, and described main valve body (8) is provided with the return opening, pressure oil port and at least two actuator ports that are connected with described main valve chamber;
Described sphere cover (10) and described main valve plug (7) are arranged in described main valve body (8), described sphere cover (10) is arranged on the right-hand member of described main valve plug (7), the right side of described main valve plug (7) and the inwall of described sphere cover (10) form the first control chamber (15), and described first control chamber (15) is connected with described pressure oil port;
The middle part of described guide valve blocks (12) is provided with guide's valve pocket, and the right-hand member of described guide's valve pocket is connected with the left end of described main valve chamber; Described guide piston (5) is arranged in described guide's valve pocket, the right-hand member of described guide piston (5) to extend in described main valve body (8) and is connected with the left end of described main valve plug (7), the left side of described guide piston (5) and the inwall of described guide's valve pocket form the second control chamber (16), and the compression face of described guide piston (5) in described second control chamber (16) is greater than the compression face of described main valve plug (7) in described first control chamber (15);
Described guide valve blocks (12) be provided with for described guide piston (5) and revolve core (4) fuel feeding pressure oil passage (12.1) and for described guide piston (5) and the oil back chamber revolving core (4) oil extraction; Described guide piston (5) is provided with inner chamber, described in revolve core (4) right-hand member be placed in described inner chamber and can rotate in described inner chamber, described in revolve core (4) left end extend in described bearing (2); The output shaft of described actuating motor (1) is fixedly connected with the described left end revolving core (4), and revolves core (4) described in driving and rotate and described second control chamber (16) is communicated with pressure oil passage (12.1) and drives described main valve plug (7) to move right or described second control chamber (16) is communicated with oil back chamber and described main valve plug (7) is moved to the left under the first control chamber (15) oil pressure effect.
2. core type proportional servo valve is revolved in a kind of numerical control according to claim 1, it is characterized in that: described guide piston (5) is provided with the first auxiliary oil channel (5.1) for described pressure oil passage (12.1) and described inner space being got up, described first auxiliary oil channel (5.1) is provided with the first oilhole near described inner chamber place; Described guide piston (5) is provided with the second auxiliary oil channel (5.2) for described oil back chamber and described inner space being got up, and described second auxiliary oil channel (5.2) is provided with the second oilhole near described inner chamber place; Described guide piston (5) right-hand member is provided with for the pressure release oilhole (5.5) to described inner chamber pressure release;
The described core (4) that revolves is provided with for closing or open many groups cylndrical surface projection (4.2.1) of described second oilhole and the first oilhole, often organizes the work oil duct (4.2.2) being provided with between described cylndrical surface projection (4.2.1) and being connected with described second control chamber (16).
3. core type proportional servo valve is revolved in a kind of numerical control according to claim 2, it is characterized in that: described first oilhole is arranged in pairs, and often pair of described first oilhole is Central Symmetry and arranges; Described second oilhole is arranged in pairs, and often pair of described second oilhole is Central Symmetry and arranges.
4. core type proportional servo valve is revolved in a kind of numerical control according to claim 1, it is characterized in that: described actuator port is set to two, be respectively actuator port A and the second actuator port B, described return opening, actuator port A, pressure oil port, the second actuator port B are from left to right successively set on described main valve body (8).
5. core type proportional servo valve is revolved in a kind of numerical control according to claim 4, it is characterized in that: the inwall of described main valve chamber is from left to right set up in parallel five annular grooves successively, be respectively first ring connected in star (8.1), the second annular groove (8.2), the 3rd annular groove (8.3), the 4th annular groove (8.4), five rings connected in star (8.5); Described main valve body (8) is provided with the drainback passage (8.6) described first ring connected in star (8.1) be communicated with described five rings connected in star (8.5);
Described return opening is communicated with described first ring connected in star (8.1) or described five rings connected in star (8.5); Described actuator port A is communicated with described second annular groove (8.2), and described pressure oil port is communicated with described 3rd annular groove (8.3), and described second actuator port B is communicated with described 4th annular groove (8.4);
Described main valve plug (7) be provided be communicated with described first ring connected in star (8.1) or the 3rd annular groove (8.3) for controlling described second annular groove (8.2) first control valve disc (7.1), described main valve plug (7) is also provided be communicated with described 3rd annular groove (8.3) or five rings connected in star (8.5) for controlling described 4th annular groove (8.4) second control valve disc (7.2).
6. core type proportional servo valve is revolved in a kind of numerical control according to claim 5, it is characterized in that: described main valve plug (7) is provided with the Oil Guide passage (7.3) for being imported to by the pressure oil of described pressure oil port in described first control chamber (15); One end of described Oil Guide passage (7.3) is communicated with described 3rd annular groove (8.3), and the other end of described Oil Guide passage (7.3) is communicated with described first control chamber (15).
7. core type proportional servo valve is revolved in a kind of numerical control according to claim 5, it is characterized in that: also comprise the first spring (9); Described first spring (9) is enclosed within the right-hand member of described main valve plug (7), conflict and be connected in the right side that the left end and described first of described first spring (9) controls valve disc (7.1), the right-hand member of described first spring (9) is conflicted with the left side of described sphere cover (10) and is connected.
8. core type proportional servo valve is revolved in a kind of numerical control according to any one of claim 1 to 7, it is characterized in that: also comprise spring seat (13) and the second spring (14); Described spring seat (13) is arranged in described bearing (2); Described second spring (14) is arranged in described bearing (2), the left end of described second spring (14) is conflicted with described actuating motor (1) and is connected, and the right-hand member of described second spring (14) is conflicted with described spring seat (13) and is connected; The left end of described guide piston (5) is provided with the boss extend in described bearing (2), described boss is provided with the through hole be communicated with described second control chamber (16) by described inner chamber, and the left side of described spring seat (13) and described boss is or/and the left end concave surface of guide valve blocks (12) is conflicted is connected.
9. core type proportional servo valve is revolved in a kind of numerical control according to any one of claim 2 to 7, it is characterized in that: described in revolve core (4) two ends be set to seal section (4.1), be clearance seal between described seal section (4.1) and described inner chamber; Described middle part of revolving core (4) is set to active section (4.2), and many groups described cylndrical surface projection (4.2.1) are arranged on described active section (4.2); Tool withdrawal groove (4.3) is equipped with between two described seal sections (4.1) and active section (4.2); Described work oil duct (4.2.2) is arranged on described active section (4.2), and is communicated with two described tool withdrawal grooves (4.3).
10. core type proportional servo valve is revolved in a kind of numerical control according to claim 9, it is characterized in that:
Described cylndrical surface projection (4.2.1) is set to one group, cylndrical surface projection (4.2.1) described in one group is provided with two described cylndrical surface projection (4.2.1), two described cylndrical surface projection (4.2.1) are in double-spiral structure, described work oil duct (4.2.2) is set to double spiral groove structure, the structure and whole described active section (4.2) is centrosymmetric;
Or,
Described cylndrical surface projection (4.2.1) is set to two groups, often organize described cylndrical surface projection (4.2.1) and be provided with two described cylndrical surface projection (4.2.1), two described cylndrical surface projection (4.2.1) often organized are in double-spiral structure, described work oil duct (4.2.2) is set to double spiral groove structure, the structure and whole described active section (4.2) is centrosymmetric.
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| CN201610090251.2A CN105545856B (en) | 2016-02-17 | 2016-02-17 | Core type proportional servo valve is revolved in a kind of numerical control |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481866A (en) * | 2016-11-16 | 2017-03-08 | 广州市精鼎电器科技有限公司 | The multifunctional servo control device being convenient to clean |
| CN106545538A (en) * | 2016-12-23 | 2017-03-29 | 武汉市航天汉诺优科技有限公司 | A kind of novel numerical control revolves core type direct acting proportioning valve |
| CN106837911A (en) * | 2017-04-21 | 2017-06-13 | 重庆江东机械有限责任公司 | Small-power servomotor drives pilot-operated type servo inserted valve and its closed loop control method |
| CN108458864A (en) * | 2018-04-09 | 2018-08-28 | 湖州职业技术学院 | Pressure turns round shaft coupling force analysis and tests system |
| CN108757621A (en) * | 2018-08-14 | 2018-11-06 | 三河沃达液压控制系统有限公司 | Indirect control formula digital servo valve |
| WO2020082271A1 (en) * | 2018-10-24 | 2020-04-30 | 武汉海力威机电科技有限公司 | Location tracking type pilot-operated proportional hydraulic valve |
| WO2021184850A1 (en) * | 2020-03-20 | 2021-09-23 | 平高集团有限公司 | Hydraulic operating mechanism and hydraulic control valve |
| CN114738343A (en) * | 2022-03-08 | 2022-07-12 | 江苏菲尔特液压机械有限公司 | Proportional direction valve |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967796A (en) * | 1989-10-23 | 1990-11-06 | John Deere Technologies International Inc. | Fuel injection regulating valve |
| CN1163657A (en) * | 1994-11-16 | 1997-10-29 | 哈埃教路士有限公司 | Pilot controlled servo-valve |
| CN1272600A (en) * | 2000-05-12 | 2000-11-08 | 西南交通大学 | High-speed numerical control proportion valve |
| CN1424513A (en) * | 2002-12-26 | 2003-06-18 | 皮钧 | Guided servo direction control valve |
| CN2604555Y (en) * | 2003-01-22 | 2004-02-25 | 宁波华液机器制造有限公司 | Proportional direction valve |
| CN201836138U (en) * | 2010-11-05 | 2011-05-18 | 山东泰丰液压股份有限公司 | Proportional electromagnet type servo valve |
| CN103216639A (en) * | 2013-03-28 | 2013-07-24 | 大连理工大学 | Rotating servo valve capable of realizing continuously and steplessly adjustable flow rate |
| CN103912692A (en) * | 2014-03-11 | 2014-07-09 | 北京航空航天大学 | Hydraulic guide structure and rotary motor driving independently loaded multi-way valve with same |
| CN204312430U (en) * | 2014-11-27 | 2015-05-06 | 上海立新液压有限公司 | A kind of plug-in type proportional throttle valve |
| CN204755449U (en) * | 2015-07-01 | 2015-11-11 | 靖江市菲尔特液压机械有限公司 | Screw -in cartridge formula guide proportion switching -over valve |
| CN205401287U (en) * | 2016-02-17 | 2016-07-27 | 武汉市航天汉诺优科技有限公司 | Numerical control rotating core formula proportional servo valve |
-
2016
- 2016-02-17 CN CN201610090251.2A patent/CN105545856B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967796A (en) * | 1989-10-23 | 1990-11-06 | John Deere Technologies International Inc. | Fuel injection regulating valve |
| CN1163657A (en) * | 1994-11-16 | 1997-10-29 | 哈埃教路士有限公司 | Pilot controlled servo-valve |
| CN1272600A (en) * | 2000-05-12 | 2000-11-08 | 西南交通大学 | High-speed numerical control proportion valve |
| CN1424513A (en) * | 2002-12-26 | 2003-06-18 | 皮钧 | Guided servo direction control valve |
| CN2604555Y (en) * | 2003-01-22 | 2004-02-25 | 宁波华液机器制造有限公司 | Proportional direction valve |
| CN201836138U (en) * | 2010-11-05 | 2011-05-18 | 山东泰丰液压股份有限公司 | Proportional electromagnet type servo valve |
| CN103216639A (en) * | 2013-03-28 | 2013-07-24 | 大连理工大学 | Rotating servo valve capable of realizing continuously and steplessly adjustable flow rate |
| CN103912692A (en) * | 2014-03-11 | 2014-07-09 | 北京航空航天大学 | Hydraulic guide structure and rotary motor driving independently loaded multi-way valve with same |
| CN204312430U (en) * | 2014-11-27 | 2015-05-06 | 上海立新液压有限公司 | A kind of plug-in type proportional throttle valve |
| CN204755449U (en) * | 2015-07-01 | 2015-11-11 | 靖江市菲尔特液压机械有限公司 | Screw -in cartridge formula guide proportion switching -over valve |
| CN205401287U (en) * | 2016-02-17 | 2016-07-27 | 武汉市航天汉诺优科技有限公司 | Numerical control rotating core formula proportional servo valve |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481866A (en) * | 2016-11-16 | 2017-03-08 | 广州市精鼎电器科技有限公司 | The multifunctional servo control device being convenient to clean |
| CN106545538A (en) * | 2016-12-23 | 2017-03-29 | 武汉市航天汉诺优科技有限公司 | A kind of novel numerical control revolves core type direct acting proportioning valve |
| CN106545538B (en) * | 2016-12-23 | 2018-04-27 | 武汉市航天汉诺优科技有限公司 | A kind of valveless set numerical control rotation core type direct acting proportioning valve |
| CN106837911A (en) * | 2017-04-21 | 2017-06-13 | 重庆江东机械有限责任公司 | Small-power servomotor drives pilot-operated type servo inserted valve and its closed loop control method |
| CN106837911B (en) * | 2017-04-21 | 2018-02-27 | 重庆江东机械有限责任公司 | Small-power servomotor drives pilot-operated type servo inserted valve and its closed loop control method |
| CN108458864A (en) * | 2018-04-09 | 2018-08-28 | 湖州职业技术学院 | Pressure turns round shaft coupling force analysis and tests system |
| CN108757621A (en) * | 2018-08-14 | 2018-11-06 | 三河沃达液压控制系统有限公司 | Indirect control formula digital servo valve |
| WO2020082271A1 (en) * | 2018-10-24 | 2020-04-30 | 武汉海力威机电科技有限公司 | Location tracking type pilot-operated proportional hydraulic valve |
| WO2021184850A1 (en) * | 2020-03-20 | 2021-09-23 | 平高集团有限公司 | Hydraulic operating mechanism and hydraulic control valve |
| CN114738343A (en) * | 2022-03-08 | 2022-07-12 | 江苏菲尔特液压机械有限公司 | Proportional direction valve |
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