CN107689304A - A kind of hydraulic actuating mechanism - Google Patents
A kind of hydraulic actuating mechanism Download PDFInfo
- Publication number
- CN107689304A CN107689304A CN201710756589.1A CN201710756589A CN107689304A CN 107689304 A CN107689304 A CN 107689304A CN 201710756589 A CN201710756589 A CN 201710756589A CN 107689304 A CN107689304 A CN 107689304A
- Authority
- CN
- China
- Prior art keywords
- rotor
- guide passage
- oil guide
- plugging block
- fin
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
Landscapes
- Hydraulic Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of hydraulic actuating mechanism, its power section includes pump, pump includes the rotor that pivot center extends along the longitudinal direction, the section of rotor is polygonized structure, formed and the tangent fin of cylindrical hole between two neighboring side, the inlet opening and fluid hole separated by dividing plate is provided with the pump housing, one end of dividing plate and the outer peripheral face of rotor slide pushing tow and coordinated, it is characterised in that：The Oil Guide passage of connection fin circumference both sides is provided with each fin, on rotor plugging block is equipped with along rotor radial guiding movement, plugging block has the first position for getting out of the way the Oil Guide passage in its shift motion and moves outwardly under the action of the centrifugal force and block the second place of the Oil Guide passage, and the spring for thinking that the plugging block applies active force and forces plugging block to be in first position is provided with rotor.The invention provides a kind of hydraulic actuating mechanism that can reduce electric motor starting load.
Description
Technical field
The present invention relates to a kind of hydraulic actuating mechanism.
Background technology
Breaker is as a kind of common electrical equipment, and using relatively broad, breaker includes arc-chutes and is arranged at for it
Moving contact, static contact in arc-chutes, breaker also include being connected to drive moving contact to act and realizing dynamic with moving contact
The hydraulic actuating mechanism of contact, static contact divide-shut brake, hydraulic actuating mechanism include power section and executable portion, hydraulic operating machine
The power section of structure includes motor and pump, and the executable portion of hydraulic actuating mechanism includes hydraulic cylinder and energy-stored spring, power section
Can into hydraulic cylinder pump oil, hydraulic cylinder compressed energy-storage spring energy-storage, when need close a floodgate when, energy-stored spring releases energy, hydraulic pressure
The piston rod of cylinder drives moving contact to static contact movement so as to realize closing operation.Wherein the motor of power section and pump are hydraulic pressure
The key that energy consumption controls in operating mechanism, Chinese patent CN101749228A disclose a kind of efficient " pump ", and the pump includes
Pedestal, the pump housing is provided with pedestal, the pump housing has cylindrical hole inner chamber, pivot center is provided with cylindrical hole inner chamber along the longitudinal direction
The rotor of extension, the section of rotor is polygonized structure, and the tangent fin of cylindrical hole is formed between two neighboring side.The pump housing
Periphery is provided with hole, and guiding movement is equipped with baffle plate at hole, and the hole is divided into inlet and liquid outlet by baffle plate, and rotor is cylinder,
Pushing tow is slided with rotor outer periphery face and is coordinated in one end of dividing plate.
In use, rotor clockwise rotates, wherein the cavity communicated with inlet is low pressure chamber, the chamber communicated with liquid outlet
Body is high pressure chest, and dividing plate slides pushing tow with rotor and coordinated all the time ensures that low pressure chamber and high pressure chest are obstructed, rotor in rotation process,
Hydraulic oil is inhaled into low pressure chamber through oil inlet, discharges as the rotation of rotor extrudes and through oil-out, realizes pump oil.It is existing this
Kind pump has problems in that：Rotor is rotated by motor driven, for corresponding motor, the larger not only power consumption of starting load but also
Loss to motor is also larger, and in the prior art, also fills with hydraulic oil in low pressure chamber during electric motor starting, to complete to liquid
Force feed acting could complete the startup of motor, minimum when not only resulting in choice of electrical machine this adds increased the starting load of motor
Power increased, and can also influence the normal energy consumption of motor.
The content of the invention
It is an object of the invention to provide a kind of hydraulic actuating mechanism that can reduce electric motor starting load.
In order to solve the above technical problems, technical scheme is as follows in the present invention：
A kind of hydraulic actuating mechanism, including power section and executable portion, executable portion include energy-stored spring and for it is corresponding
The hydraulic cylinder of moving contact drive connection, power section include motor and the pump to shown hydraulic cylinder pump oil, and pump includes having cylindricality
The pump housing of hole inner chamber, the rotor that pivot center extends along the longitudinal direction is provided with the pump housing, the section of rotor is polygonized structure,
Formed between two neighboring side with the tangent fin of cylindrical hole, be provided with the inlet opening and fluid hole separated by dividing plate on the pump housing,
One end of dividing plate and the outer peripheral face of rotor slide pushing tow and coordinated, and the Oil Guide that connection fin circumference both sides are provided with each fin leads to
Road, plugging block is equipped with along rotor radial guiding movement on rotor, plugging block has in its shift motion gets out of the way the Oil Guide
The first position of passage and move outwardly under the action of the centrifugal force and block the second place of the Oil Guide passage, set on rotor
There is the spring for thinking that the plugging block applies active force and forces plugging block to be in first position.
The spring is to be arranged at the extension spring on the inside of plugging block.
Oil Guide passage on each fin has multiple, and each Oil Guide passage on same fin is along rotor axial interval cloth
Put, the compartment between adjacent Oil Guide passage on same fin is used to slidably support with the dividing plate and coordinated.
Beneficial effects of the present invention are：When rotor is not actuated, by spring effect, plugging block is in first position, Oil Guide
The circumferential both sides of passage UNICOM rotor, during rotor ground zero, because rotating speed is also relatively slow, therefore centrifugal force is not enough to overcome spring
Active force, therefore Oil Guide passage still turns on, the oil pressure of rotor circumference both sides is consistent, therefore the starting load of rotor is smaller,
When the speed of rotor reaches certain value, the centrifugal force of plugging block overcomes the active force of spring, and plugging block is moved to second outwardly
Position, Oil Guide passage are blocked, so as to realize normal fuel feeding, so as to reach the electrical machine energy-saving effect to hydraulic actuating mechanism.
Further, the Oil Guide passage on each fin has multiple, each Oil Guide passage along rotor axial arranged for interval, this
Compartment between the adjacent Oil Guide passage of sample can slidably support with dividing plate to be coordinated, and avoids dividing plate from snapping into Oil Guide passage and shadow
Ring rotor normal rotation.
Brief description of the drawings
Fig. 1 is view when pump of the present invention is not actuated；
Fig. 2 is the view after pump startup in the present invention；
Fig. 3 is the top view of rotor in Fig. 1；
Fig. 4 is enlarged drawing at A in Fig. 2；
Fig. 5 is the cooperation schematic diagram of brake device for electrical machinery and motor shaft in the present invention；
Fig. 6 is the cooperation schematic diagram of motor shaft and bearing block in the present invention；
Fig. 7 is the structural representation that spanner is adjusted in the present invention；
Fig. 8 is Fig. 7 side view；
Fig. 9 is the cooperation schematic diagram of electric machine casing and the pump housing in the present invention.
Embodiment
The implementation of hydraulic actuating mechanism is for example shown in Fig. 1 ~ 9：Hydraulic actuating mechanism includes power section and executable portion, moves
Power part includes motor 37 and pump 36, and executable portion includes hydraulic cylinder and energy-stored spring, and its basic operation principle is power part
Point can into hydraulic cylinder pump oil, hydraulic cylinder compressed energy-storage spring energy-storage, when need close a floodgate when, energy-stored spring releases energy, liquid
The piston rod of cylinder pressure drives moving contact towards static contact movement so as to realize closing operation.The working mechanism category of hydraulic actuating mechanism
In prior art, it will not be described in detail herein, the improvement of this invention is with lower part.
Pump 36 includes the pump housing 2 with cylindrical hole inner chamber, and turn that pivot center extends along the longitudinal direction is provided with the pump housing 2
Son 5, the cross section of rotor be polygonized structure, and each side of rotor is in the arc of indent, formed between two neighboring side and
The tangent fin 50 extended along the longitudinal direction of cylindrical hole, the inlet opening 8 and fluid hole 1 separated by dividing plate 9 is provided with the pump housing,
Dividing plate 9 can move back and forth along the radial direction of rotor, and the inner of dividing plate 9 is slided pushing tow with the outer peripheral face of rotor 5 and coordinated.At each fin 50
It is provided with the Oil Guide passage 7 of connection fin circumference both sides, the longitudinal section of Oil Guide passage 7 is arc-shaped structure, arc-shaped structure
The center of circle be in the side of Oil Guide passage adjacent rotor rotation axis, the Oil Guide passage at each fin has multiple, each fin
Along rotor axial arranged for interval, the compartment 71 between each Oil Guide passage on each fin can play the Oil Guide passage at place
The effect of supporting clapboard 9 is so as to avoiding in the stagnant passage to Oil Guide of dividing plate board.The both ends of rotor are additionally provided with guide direction edge
The pilot hole of rotor radial extension, be individually directed in each pilot hole it is mobile be equipped with plugging block 4, each plugging block 4 respectively with each
Corresponding Oil Guide passage 7 is corresponding, plugging block have in its shift motion the first position that gets out of the way corresponding Oil Guide passage 7 and
Moved outwardly under centrifugal action and block the second place of corresponding Oil Guide passage 7, be provided with rotor 5 relative with each plugging block
The spring for being used to apply active force to corresponding plugging block and force plugging block to be in first position answered, spring is in the present embodiment
The extension spring 6 being arranged on the inside of plugging block, the outside end of plugging block are provided with plugging block end tooth 72, be provided with rotor for
Plugging block end tooth is adapted to the rotor end tooth 73 of interfix, and labyrinth seal is formed after plugging block end tooth 72 and the interfix of rotor end tooth 73, this
Sample can ensure in rotor During regular rotation, the excellent sealing of Oil Guide passage, while also form the both ends branch to plugging block 4
Support, ensure the anti-pressure ability of plugging block 4, ensure the service life that plugging block works under high oil pressure.When motor is not actuated, by
Extension spring 6 acts on, and each plugging block is in the first position for getting out of the way corresponding Oil Guide passage as shown in figure 1, motor is in incipient startup
During, rotor speed is smaller, and the centrifugal force of plugging block is not enough to overcome the active force of stage clip, therefore Oil Guide passage is always to lead
Logical, the pressure of rotor circumference both sides is identical, and the resistance that rotor motion is subject to is just smaller, it is possible to achieve low-load starts, small work(
Rate motor can realizes that the load of rotor starts, and after rotor speed reaches certain speed, such as motor speed reaches
After 1000r/min, the centrifugal force of rotor overcomes the elastic force of stage clip, and plugging block is displaced outwardly and can be real by Oil Guide passage plugging, pump
Existing normal fuel injection.During actual use, the pretension amount of suitable spring or adjustment spring can be selected to adjust according to requirements
Motor can realize normal fuel injection in what rotating speed.Pumping plant also includes fuel tank（Not shown in figure）, motor and pump are installed on oil
On case, the inlet opening of pump is connected with fuel tank, and the fluid hole of pump is connected with oil pipe, with to other equipment fuel feeding.
Motor includes the electric machine casing 12 being connected with the pump housing, and electric machine casing 12, the pump housing 2 are front and rear to be arranged, is set in electric machine casing
The motor shaft 18 that pivot center extends along the longitudinal direction is equipped with, dynamic sealing mechanism 30 is provided between motor shaft 18 and the pump housing 2, electricity
The front side of dynamic sealing mechanism 30 is provided with discharge opeing nut 32 on arbor 18, is evenly distributed on the outward flange of discharge opeing nut 32
There are multiple breach 33.The annular groove 34 corresponding with discharge opeing nut 32 is provided with electric machine casing, annular groove 34 is in dynamic
The front side of sealing mechanism, the bottom of annular groove 34 are provided with outage 35, and the upper end of electric machine casing is provided with air admission hole 31, entered
Stomata 31 is in the front side of dynamic sealing mechanism 30, and breather cheek valve is provided with air admission hole 31, and gas can enter through the external world, but
It is that internal liquid cannot discharge through breather cheek valve.It is provided with the pump housing and the liquid sucting port of high pressure chest UNICOM 10, liquid sucting port
Liquid non-return valve is provided with 10, liquid can enter the pump housing through liquid sucting port, but cannot be discharged through liquid sucting port, liquid sucting port 10
It is connected with outage 35 by flexible pipe.In normal use, dynamic sealing mechanism may fail power assembly, now the liquid in pump
Force feed can be through flow direction motor between dynamic sealing mechanism and motor shaft, after hydraulic oil is flowed on discharge opeing nut 32, the quilt of hydraulic oil 32
Get rid of into annular groove 34, and annular groove 34 is then connected through outage 35, liquid sucting port 10 and the low pressure chamber of pump, the hydraulic pressure of leakage
Oil can be drawn into low pressure chamber again, participates in the pump oil of next stage.
Motor also includes being used for the brake device for electrical machinery for braking to motor shaft, and brake device for electrical machinery includes multiple along week
To spaced apart brake units 13, each brake units 13 include can be along the brake shoes of motor shaft radial floating by spring
16, brake units also include the fixation steel disc 14 being oppositely arranged with brake shoes, and system is provided between brake shoes 16 and electric machine casing
Move spring 15, magnet coil is provided with brake shoes 16, magnet coil electrically connects with the supply lines of motor.Figure middle term 17 represents bullet
Spring guide cylinder, in motor normal power supply, magnet coil, which is powered, produces magnetic force and attracting with fixed steel disc 14, overcomes braking with this
Acting force of the spring, brake shoes do not contact with motor shaft, when motor powers off, are acted on by tripping spring, each brake shoes with electricity
Arbor contacts and realizes friction catch.Whole brake units are arranged on fixed electric machine casing, without being provided in electricity
More loads need not be expended on arbor, during motor shaft normal rotation, help to save, while to solenoid also become
It must be more prone to, whole device is easily realized, and is not easy to break down.
There is general bearing block in the end set of electric machine casing, general bearing block is adapted to the electricity of plurality of specifications size
Arbor, its basic structure are：Bearing block includes frame-shaped body 21, and the clamping list of a pair of opposing is provided with frame-shaped body
Member, two grip units are referred to as grip unit 20 and lower grip unit 19, and each grip unit includes and frame shape sheet
The screw rod 23 of body threaded connection, the screw flight of upper and lower grip unit is oppositely oriented and is coaxially set, and the inner of screw rod is set
Grip block 24 is equipped with, screw rod can rotate relative to grip block, gripped between two grip blocks for matching somebody with somebody with motor shaft 18
The bearing 25 of conjunction.The upper end of the screw rod of upper grip unit is provided with the upper montant jack 22 axially vertical with screw rod, lower bearing list
The lower end of the screw rod of member is provided with the lower montant jack 50 axially vertical with screw rod, and upper and lower montant jack respectively constitutes two spiral shells
The moment of torsion input structure of bar.The adjustment spanner of distance between grip block of the bearing block also including being used to adjust upper and lower grip unit,
Adjust spanner as seen in figs. 5-6, it includes cross bar 27 and two can be along the montant 26 of the bearing of trend guiding movement of cross bar 27, montant
26 are slidably matched by the T-shaped termination 28 of its end and the guiding of T-slot 29 on cross bar 27, in use, two montants 26 of adjustment
Position, two montants are respectively inserted in the corresponding montant jack of upper and lower grip unit, then move axle of the cross bar around screw rod
Line rotates, and cross bar drives two montants to swing, so as to drive each screw rod to rotate, to realize the grip block of upper and lower grip unit
Relative movement adjustment is moved away from adjusting, and to match the bearing of different-diameter, the adjustment mode has the beneficial effect that, two spiral shells
The rotational angle of bar is consistent, therefore the displacement of the grip block of upper and lower grip unit is consistent, and this is ensured that
No matter how general bearing block adjusts, and can ensure that the center of bearing is constant, prevents motor axis deviation and causes bearing
Abrasion is very fast.In other embodiments of the invention, adjust spanner can also not as bearing block technical scheme a part, than
Such as say that adjustment spanner can be sold separately in addition；Moment of torsion input structure on screw rod can also be flat head structure, now can be
The driving groove coordinated with flat head structure rotation stop is set on montant.
Claims (3)
1. a kind of hydraulic actuating mechanism, including power section and executable portion, executable portion include energy-stored spring and for phase
The hydraulic cylinder for answering moving contact to be connected, power section include motor and the pump to shown hydraulic cylinder pump oil, and pump includes having post
The pump housing of shape hole inner chamber, the rotor that pivot center extends along the longitudinal direction is provided with the pump housing, the section of rotor is polygon knot
Structure, formed between two neighboring side with the tangent fin of cylindrical hole, be provided with the inlet opening separated by dividing plate on the pump housing and go out liquid
Hole, one end of dividing plate and the outer peripheral face of rotor slide pushing tow and coordinated, it is characterised in that：Connection fin is provided with each fin
The Oil Guide passage of circumferential both sides, plugging block is equipped with along rotor radial guiding movement on rotor, plugging block is in its shift motion
Move under the action of the centrifugal force with the first position for getting out of the way the Oil Guide passage and outwardly and block the of the Oil Guide passage
Two positions, the spring for thinking that the plugging block applies active force and forces plugging block to be in first position is provided with rotor.
2. hydraulic actuating mechanism according to claim 1, it is characterised in that：The spring is to be arranged on the inside of plugging block
Extension spring.
3. hydraulic actuating mechanism according to claim 1 or 2, it is characterised in that：Oil Guide passage on each fin has
It is multiple, each Oil Guide passage on same fin along rotor axial arranged for interval, adjacent Oil Guide passage on same fin it
Between compartment be used for and the dividing plate sliding support coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756589.1A CN107689304B (en) | 2017-08-29 | 2017-08-29 | A kind of hydraulic actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756589.1A CN107689304B (en) | 2017-08-29 | 2017-08-29 | A kind of hydraulic actuating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107689304A true CN107689304A (en) | 2018-02-13 |
| CN107689304B CN107689304B (en) | 2019-01-08 |
Family
ID=61155623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710756589.1A Expired - Fee Related CN107689304B (en) | 2017-08-29 | 2017-08-29 | A kind of hydraulic actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107689304B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397484A (en) * | 2019-07-26 | 2019-11-01 | 杭州电子科技大学 | A kind of change discharge capacity internal rotor lubricating oil pump |
| CN113510612A (en) * | 2021-05-14 | 2021-10-19 | 嘉兴星微纳米科技有限公司 | Semiconductor free polishing device and semiconductor polishing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1393934A1 (en) * | 1985-07-09 | 1988-05-07 | Хмельницкий Технологический Институт Бытового Обслуживания | Rotary compressor |
| JPH0230996A (en) * | 1988-07-20 | 1990-02-01 | Diesel Kiki Co Ltd | Vane type rotary compressor |
| CN101614204A (en) * | 2008-06-27 | 2009-12-30 | 托克海姆控股有限公司 | The liquid conveyer of band blade |
| CN203098270U (en) * | 2013-01-09 | 2013-07-31 | 广西玉柴机器股份有限公司 | Vane type fuel transfer pump |
-
2017
- 2017-08-29 CN CN201710756589.1A patent/CN107689304B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1393934A1 (en) * | 1985-07-09 | 1988-05-07 | Хмельницкий Технологический Институт Бытового Обслуживания | Rotary compressor |
| JPH0230996A (en) * | 1988-07-20 | 1990-02-01 | Diesel Kiki Co Ltd | Vane type rotary compressor |
| CN101614204A (en) * | 2008-06-27 | 2009-12-30 | 托克海姆控股有限公司 | The liquid conveyer of band blade |
| CN203098270U (en) * | 2013-01-09 | 2013-07-31 | 广西玉柴机器股份有限公司 | Vane type fuel transfer pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397484A (en) * | 2019-07-26 | 2019-11-01 | 杭州电子科技大学 | A kind of change discharge capacity internal rotor lubricating oil pump |
| CN113510612A (en) * | 2021-05-14 | 2021-10-19 | 嘉兴星微纳米科技有限公司 | Semiconductor free polishing device and semiconductor polishing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107689304B (en) | 2019-01-08 |
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Granted publication date: 20190108 Termination date: 20200829 |