CN207470885U - A kind of compact linear formula spool opening degree control device - Google Patents
A kind of compact linear formula spool opening degree control device Download PDFInfo
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- CN207470885U CN207470885U CN201721301240.0U CN201721301240U CN207470885U CN 207470885 U CN207470885 U CN 207470885U CN 201721301240 U CN201721301240 U CN 201721301240U CN 207470885 U CN207470885 U CN 207470885U
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- opening degree
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Abstract
The utility model is related to a kind of compact linear formula spool opening degree control device, wherein manipulation unit (1) is connected with each other with electrically driven (2) carries out information exchange, to send control instruction and display action state；Electrically driven (2) output terminal connects the control terminal of motor, the signal output end of the signal feedback end connection executing agency (4) of electrically driven (2), the executing agency (4) are run by the instruction of manipulation unit (1) to setting position；When operation irregularity triggers limit switch, the signal of limit switch feeds back to electrically driven (2) and makees position limitation protection；Gear unit (3) provides power for the operation of executing agency (4)；The rotary motion of gear unit (3) is converted to linear motion output by executing agency (4), and the spool movement of valve (5) is pushed to control the opening degree of spool.The utility model can realize the accurate control of valve location and active force, small, suitable for the installation site of narrow space.
Description
Technical field
The utility model is related to technical field of valve control more particularly to a kind of compact linear formula spool opening degree to control
Device.
Background technology
In today that automatic control technology gradually develops, vapour, liquid conveying device gradually adopt automatic control technology, become more
Add intelligent and miniaturization, the valve that can especially automatically control is gradually instead of the valve of artificial folding.Valve from
In dynamic control technology, it is most important that valve actuator.This valve actuator can be by the pressure of operating personnel and valve member
Part is isolated, and is greatly enhanced the safe coefficient of valve folding, is improved work efficiency, and realizes the accurate tune of flow
Section and control.
Linear valve actuator is the valve actuator the most rapid that develops for some years recently and come into operation, excellent
Point is can to realize that straight line control or angle control, and it is fast to open and close speed to the folding of valve.Existing linear valve actuator has
Hydraulic direct wire type valve actuator and pneumatic linear valve actuator.
However, existing hydraulic pressure, position poor controllability, inconvenient maintenance, the sensitivity of pneumatic linear valve actuator it is poor,
Environmental sensibility is high, and the features such as can cause larger leakage and noise pollution, has been difficult in adapt to current intelligent industrial development
It needs.
And existing hydraulic pressure, pneumatic linear valve actuator is complicated, can not switching motor direction of rotation, no
Suitable for the shipbuilding industry that installation space is narrow.
Utility model content
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of compact linear formula spool folding
Control device is spent, the accurate control of valve location and active force can be realized, and simple in structure, can be revolved with switching motor
Turn direction, be suitable for the installation site of narrow space.
The purpose of this utility model is achieved through the following technical solutions：
The utility model provides a kind of compact linear formula spool opening degree control device, including：
Manipulate unit, electrically driven, gear unit, executing agency and valve；
The manipulation unit carries out information exchange with electrically driven be connected with each other, with send control instruction to electrically driven and
Show action state；
The control terminal of motor, electrically driven signal feedback end in the electrically driven output terminal connection gear unit
The signal output end of executing agency is connected, the executing agency is by the instruction action for manipulating unit；When operation irregularity triggers two
When holding limit switch, the signal of limit switch, which is fed back to, electrically driven makees position limitation protection；
Gear unit provides power for the operation of executing agency；
The rotary motion of gear unit is converted to linear motion output by executing agency, and the spool of valve is pushed to control
Move the opening degree to control spool；
It is highly preferred that the gear unit includes：
Motor and power train；
The power that motor provides is by power train to determine to transmit in the form of reduction ratio the power to executing agency；
The power train includes spanner button, and the spanner button is arranged on the outside of big driving member.
It is highly preferred that the motor and the executing agency in the gear unit are fixed in fixed plate, and motor
Line shaft center line it is parallel with the linear running direction of executing agency.
It is highly preferred that being provided with the slot coordinated with the connecting flange of the motor in the fixed plate, the slot is waist
Shape slot, and be kidney slot for fixing the hole of the motor.
It is highly preferred that the executing agency includes：
Leading screw, bearing assembly, nut assembly, push rod, anti-rotation member, cylinder barrel drive end bearing bracket and cylinder barrel；
The left end of the cylinder barrel is connected on bearing assembly, right end connection cylinder barrel drive end bearing bracket；The left end of the leading screw stretches out
Bearing assembly, and connect with the big driving member of gear unit, right end stretches into the inside of push rod；Nut assembly is on leading screw, spiral shell
Axis is equipped with anti-rotation member on female component, and is placed in inside cylinder barrel；The left end of push rod is fixedly connected with nut assembly, and right end is stretched
Connect after going out cylinder barrel drive end bearing bracket with the valve.
It is highly preferred that the bearing assembly includes：
Bearing, bearing inner sleeve, bearing block, bearing (ball) cover, bearing enclosure and locking nut；
The bearing inner sleeve, bearing and bearing enclosure are integrally positioned over the inside of bearing block, and in end set bearing
End cap；The inner ring interference of the outer wall and bearing of bearing inner sleeve connects；The optical axis portion interference of the inner wall and leading screw of bearing inner sleeve connects
It connects；The screw thread of locking nut cooperation leading screw locks bearing.
It is highly preferred that the nut assembly includes：
Nut, nut set, wear ring, magnet ring, magnet ring baffle ring and nut baffle ring；
The nut is installed on leading screw；The nut set, nut baffle ring are located at the both sides of nut respectively；The nut set
Axial direction on be provided with anti-rotation groove for installing the anti-rotation member, the medium position of nut set is provided with use in the radial direction
In the card slot of installation wear ring, it is provided with the respective card slot for installing magnet ring, magnet ring baffle ring in the radial direction close to end position；
The wear ring, magnet ring, magnet ring baffle ring are mounted in the card slot.
It is highly preferred that the anti-rotation member includes：
Anti-bull stick and slider；
The slider is attached on the upper anti-rotation groove inner wall of nut set；The anti-bull stick is fixed on the inner surface of cylinder barrel,
Upper anti-rotation groove is covered with nut to match；During guiding, the anti-bull stick is static, and the nut assembly is by slider with preventing
Relative translation occurs for bull stick.
It is highly preferred that the cylinder barrel internal hole of front end cover is equipped with sliding bearing, the sliding bearing is in contact with push rod.
It is highly preferred that sealing ring and dustband are housed in the cylinder barrel drive end bearing bracket.
The utility model has the following technical effect that it can be seen from above-mentioned the technical solution of the utility model：
The utility model is realized accurate to the accurate control of position and retarder by electrically driven control gear unit
Deceleration control, and the rotary motion of gear unit is converted to valve to be pushed to run by linear running by executing agency,
And then realize the accurate control of valve location and active force, positioning accuracy reaches 0.02mm.
The utility model is parallel to executing agency by the power output shaft of the motor in fixed plate gear unit
Linear running direction, therefore the direction of rotation of motor can be changed so that the utility model it is small, suitable for narrow space
Installation site.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of gear unit in the utility model；
Fig. 3 is the structure diagram of executing agency in the utility model；
Fig. 4-1 is the structure diagram of the bearing assembly of executing agency in the utility model；
Combining structure schematic diagrams of the Fig. 4-2 for parts in the bearing block in the utility model axis bearing assembly；
Fig. 5 is the structure diagram of the nut assembly of executing agency in the utility model；
Fig. 6-1 is the structure diagram of the anti-rotation member of executing agency in the utility model；
Fig. 6-2 is the schematic view of the mounting position of anti-bull stick in anti-rotation member in the utility model.
In figure：
Manipulate unit 1, electrically driven 2, gear unit 3, executing agency 4 and valve 5；Small belt pulley 321, synchronous belt 322,
Big belt pulley 323 and spanner button 324；Before leading screw 41, bearing assembly 42, nut assembly 43, push rod 44, anti-rotation member 45, cylinder barrel
End cap 46 and cylinder barrel 47；Bearing 421, bearing inner sleeve 422, bearing block 423, bearing (ball) cover 424, bearing enclosure 425 and locking screw
Mother 426；Nut 431, anti-rotation groove 4321, nut set 432, wear ring 433, magnet ring 434, magnet ring baffle ring 435 and nut baffle ring
436；Anti-bull stick 451 and slider 452.
Specific embodiment
The technical solution of the utility model is described in further details below with reference to attached drawing.
Embodiment one
The utility model provides a kind of compact spool opening degree control device, structure such as Fig. 1, including such as lower component：
Manipulate unit 1, electrically driven 2, gear unit 3, executing agency 4 and valve 5.
Manipulate unit 1 and be connected with each other with electrically driven 2 and carry out information exchanges, with send control instruction to electrically driven 2 and
Show action state.The control terminal of motor, sends control instruction in electrically driven 2 signal output end connection gear unit 3
Motor in gear unit 3 is to drive and control motor to realize mechanical movement by particular form；Rational peace is considered simultaneously
Full guard and limiting requirement, the signal output end of electrically driven 2 signal feedback termination executing agency 4, executing agency 4 is by instruction
Action；Executing agency 4, which reaches certain position, can trigger both ends limit switch, and the signal feedback of limit switch passes to electrically driven
2 do position limitation protection, and then control the movement of the motor in gear unit 3.Gear unit 3 is provided for the operation of executing agency 4
Power；Executing agency 4 converts rotational motion into linear motion output, and the spool of valve 5 is pushed to move left and right, with control
The opening degree of spool realizes the control of the fluid to flowing through valve.
Above-mentioned manipulation unit 1 is arranged on operation bench, and including external switch, display lamp etc., manipulation unit 1 drives with electrical
Dynamic 2 are connected by circuit.
Electrically driven 2 by externally fed.The control terminal of electrically driven 2 signal output end connection transfer unit 3, signal
The signal output end of feedback termination executing agency 4.It uses programmable controller, is internally embedded software program, which can be with
According to practical work requirements and safeguard protection, the detection and actively requirements such as triggering, specifically write, can realize valve
The complicated intelligentized control method of door.This electrically driven 2 by stent install fix, by self-radiating.
In course of normal operation, the external switch manipulated by triggering in unit 1 sends control instruction, which passes through electricity
Gas drive converts signal in order to control after moving 2 processing, which is exported by electrically driven 2 signal output end to gear unit
Motor in 3, the power of motor drives executing agency 4 to run after slowing down by power train, to control entire spool folding
Degree, finally realizes that entire control device works as required.
Gear unit 3 includes motor and power train, and gear unit 3 is passed power by determining in the form of reduction ratio by power train
It is handed to executing agency 4.The power train can be belt transmission mechanism, or other transmission mechanisms, such as gear drive.
As shown in Figure 2 provide power train be belt transmission mechanism structure diagram, including as small driving member small belt pulley 321,
Synchronous belt 322, as the big belt pulley 323 of big driving member and spanner button 324.Spanner button 324 therein is arranged on big driving member
Outside, in electrical fault, provide manually power input, realize the urgent folding of valve.
The structure of above-mentioned executing agency 4 as shown in figure 3, including：Leading screw 41, bearing assembly 42, nut assembly 43, push rod
44th, anti-rotation member 45, cylinder barrel drive end bearing bracket 46 and cylinder barrel 47.
The left end of leading screw 41 stretches out bearing assembly 42, and passes through key connection with the big driving member of gear unit 3；Leading screw 41
Right end stretches into the inside of push rod 44.Equipped with nut assembly 43 on leading screw 41, nut assembly 43 is fixed with push rod 44 by screw to be connected
It connects.Axis is equipped with anti-rotation member 45 on nut assembly 43, and is placed in inside cylinder barrel 47；The left end of cylinder barrel 47 is connected to bearing group
On part 42, right end connection cylinder barrel drive end bearing bracket 46；Push rod 44 connects after stretching out cylinder barrel drive end bearing bracket 46 with valve 5.
The bearing assembly 42 in motor and executing agency 4 in above-mentioned gear unit 3, passes through connecting flange and fastener
It is fixed in fixed plate, and the center line of the line shaft of motor is parallel with the linear running direction of executing agency 4, it is possible thereby to
Convert the direction of rotation of motor so that the more existing hydraulic pressure of the utility model or pneumatic linear valve actuator are more applicable in
In the installation site of narrow space.In order to realize that the centre-to-centre spacing between gear unit 3 and executing agency 4 is adjustable, the fixed plate and
The slot of the connecting flange cooperation of motor is kidney slot, and is kidney slot for the hole of fixed motor.
The structure of above-mentioned bearing assembly 42 as shown in Fig. 4-1 and Fig. 4-2, including：Bearing 421, bearing inner sleeve 422, bearing
Seat 423, bearing (ball) cover 424, bearing enclosure 425 and locking nut 426.Wherein, bearing inner sleeve 422, bearing 421 and bearing oil
The whole inside for being positioned over bearing block 423 of envelope 425, and in end set bearing (ball) cover 424.The outer wall and axis of bearing inner sleeve 422
Hold 421 inner ring interference connection.The inner wall of bearing inner sleeve 422 is connect with the optical axis portion interference of leading screw 41, and locking nut 426 is matched
The screw thread of plying thick stick 41 locks bearing 421.
Above-mentioned nut assembly 43 is socketed on leading screw 41, is connected by flange with push rod 44.The knot of the nut assembly 43
Structure is as shown in figure 5, including nut 431, nut set 432, wear ring 433, magnet ring 434, magnet ring baffle ring 435 and nut baffle ring 436.
Wherein, nut 431 is installed on leading screw 41.Nut set 432, nut baffle ring 436 are located at the two of nut 431 respectively
Side, three are bolted together.Anti-rotation groove 4321 is wherein provided on the axial direction of nut set 432, nut set 432
Medium position is provided with the card slot for installing wear ring 433 in the radial direction, is provided with and is used in the radial direction close to end position
The respective card slot of magnet ring 434, magnet ring baffle ring 435 is installed.The design of nut set 432 can be very good protection screw-nut structure,
The Secondary Design to nut structure and processing are avoided, and nut set 432 is conveniently replaceable, and has good use and maintenance function.
Wear ring 433, magnet ring 434, magnet ring baffle ring 435 are mounted on nut set 432 in corresponding card slot；It is wear-resisting during work
With cylinder barrel inner cylinder face opposite slip occurs for the outer surface of ring 433, so as to realize the auxiliary radial support work to lead screw pair
With.The characteristics of wear ring 433 is：It rubs small, simple in structure and at low cost.
The left end of push rod 44 is connected with nut assembly 43, and the right end of push rod 44 is stretched out from the endoporus of cylinder barrel drive end bearing bracket 46.
In order to protect the outer wall of push rod 44,46 endoporus of cylinder barrel drive end bearing bracket is equipped with sliding bearing, by sliding bearing and push rod 44
Push rod is in contact, and support and guiding role are provided for push rod.
For sealing function, sealing ring, dustband etc. are also equipped in cylinder barrel drive end bearing bracket 46.
Anti-rotation member 45 is mounted on the nut set 432 in nut assembly 43, and structure is as shown in Fig. 6-1 and Fig. 6-2, packet
It includes：Anti-bull stick 451 and slider 452.In structure, slider 452 passes through the cementing anti-rotation groove being attached on nut set 432
On on 4321 inner walls, one is formed with pair of nut.Anti-bull stick 451 is fixed on the inner surface of cylinder barrel by screw, with nut set 432
On anti-rotation groove 4321 match.During guiding, anti-bull stick 451 is static, and nut assembly 43 passes through slider 452 and anti-bull stick
451 occur relative translation, so as to inhibit the rotary motion of nut assembly 43, realize the guide function of the mechanism.
Cylinder barrel 47 is located at the isostructural outside of feed screw nut, plays the role of protective separation to internal structure.Pass through long spiral shell
Nail, the both ends of cylinder barrel 47 are linked together respectively with the bearing block 423 in cylinder barrel drive end bearing bracket 46 and bearing assembly 42.
From the above, it is seen that each arteries and veins of the utility model by the motor in electrically driven control gear unit
Punching, realizes control of accurately slowing down to the accurate control of position and retarder, and by executing agency by gear unit
Rotary motion is converted to linear running valve to be pushed to run, and then realizes the accurate control of valve location and active force, fixed
Position precision reaches 0.02mm.Executing agency is parallel to by the power output shaft of the motor in fixed plate gear unit
Linear running direction, therefore being capable of reversing rotation of motors so that the utility model it is small, suitable for narrow space
Installation site.
Although the utility model has been described by way of example and in terms of the preferred embodiments, embodiment does not limit the utility model.Not
It is detached from the spirit and scope of the utility model, any equivalence changes done or retouching, also belongs to the guarantor of the utility model
Protect range.Therefore the scope of protection of the utility model should be using the content that claims hereof is defined as standard.
Claims (9)
- A kind of 1. compact linear formula spool opening degree control device, which is characterized in that the compact linear formula spool folding Degree control device includes：Manipulate unit (1), electrically driven (2), executing agency (4) and valve (5)；The manipulation unit (1) is connected with each other with electrically driven (2) carries out information exchange, to send control instruction to electrically driven (2) and display action state；The control terminal of the output terminal connection motor of electrically driven (2), the signal feedback end connection of electrically driven (2) perform The signal output end of mechanism (4), the executing agency (4) is by the instruction action for manipulating unit (1)；When operation irregularity triggers two When holding limit switch, the signal of limit switch feeds back to electrically driven (2) and makees position limitation protection；Motor rotary motion is converted to linear motion output by executing agency (4), and the spool of valve (5) is pushed to do left and right and is moved Move the opening degree to control spool.
- 2. a kind of compact linear formula spool opening degree control device according to claim 1, which is characterized in that described tight The linear spool opening degree control device of the type that gathers further includes：Gear unit (3)；The gear unit (3) is including motor and power train；The power that motor provides passes through power train to determine reduction ratio shape Formula transmits the power to executing agency (4)；The power train includes spanner button (324), and the spanner button (324) is arranged on the outside of big driving member.
- A kind of 3. compact linear formula spool opening degree control device according to claim 2, which is characterized in that the biography Motor and the executing agency (4) in moving cell (3) are fixed in fixed plate, and the center line of the line shaft of motor with The linear running direction of executing agency (4) is parallel.
- 4. a kind of compact linear formula spool opening degree control device according to claim 3, which is characterized in thatThe slot coordinated with the connecting flange of the motor is provided in the fixed plate, the slot is kidney slot, and for solid The hole of the fixed motor is kidney slot.
- 5. a kind of compact linear formula spool opening degree control device according to claim 1, which is characterized in that described to hold Row mechanism (4) includes：Leading screw (41), bearing assembly (42), nut assembly (43), push rod (44), anti-rotation member (45), cylinder barrel drive end bearing bracket (46) and Cylinder barrel (47)；The left end of the cylinder barrel (47) is connected on bearing assembly (42), right end connection cylinder barrel drive end bearing bracket (46)；The leading screw (41) left end stretches out bearing assembly (42), and connects with the big driving member of gear unit (3), and right end stretches into the interior of push rod (44) Portion；For nut assembly (43) on leading screw (41), axis is equipped with anti-rotation member (45) on nut assembly (43), and is placed in cylinder barrel (47) it is internal；The left end of push rod (44) is fixedly connected with nut assembly (43), right end stretch out cylinder barrel drive end bearing bracket (46) afterwards with it is described Valve (5) connects.
- A kind of 6. compact linear formula spool opening degree control device according to claim 5, which is characterized in that the axis Bearing assembly (42) includes：Bearing (421), bearing inner sleeve (422), bearing block (423), bearing (ball) cover (424), bearing enclosure (425) and locking nut (426)；The bearing inner sleeve (422), bearing (421) and bearing enclosure (425) are integrally positioned over the inside of bearing block (423), And in end set bearing (ball) cover (424)；The outer wall of bearing inner sleeve (422) is connect with the inner ring interference of bearing (421)；In bearing The inner wall of set (422) is connect with the optical axis portion interference of leading screw (41)；The screw thread of locking nut (426) cooperation leading screw (41) is by axis (421) are held to be locked.
- A kind of 7. compact linear formula spool opening degree control device according to claim 5, which is characterized in that the spiral shell Female component (43) includes：Nut (431), nut set (432), wear ring (433), magnet ring (434), magnet ring baffle ring (435) and nut baffle ring (436)；The nut (431) is installed on leading screw (41)；The nut set (432), nut baffle ring (436) are located at nut respectively (431) both sides；The anti-rotation groove for installing the anti-rotation member (45) is provided on the axial direction of the nut set (432) (4321), the medium position of nut set (432) is provided with the card slot for installing wear ring (433) in the radial direction, by close end Position is provided with the respective card slot for installing magnet ring (434), magnet ring baffle ring (435) in the radial direction；The wear ring (433), Magnet ring (434), magnet ring baffle ring (435) are in the card slot.
- 8. a kind of compact linear formula spool opening degree control device according to claim 5, which is characterized in that described anti- Rotation member (45) includes：Anti-bull stick (451) and slider (452)；The slider (452) is attached on anti-rotation groove (4321) inner wall on nut set (432)；The anti-bull stick (451) is solid Due to the inner surface of cylinder barrel, matched with the anti-rotation groove (4321) on nut set (432)；During guiding, the anti-bull stick (451) static, by slider (452) and anti-bull stick (451) relative translation occurs for the nut assembly (43).
- A kind of 9. compact linear formula spool opening degree control device according to claim 5, which is characterized in that the cylinder Cylinder drive end bearing bracket (46) endoporus is equipped with sliding bearing, and the sliding bearing is in contact with push rod (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721301240.0U CN207470885U (en) | 2017-09-30 | 2017-09-30 | A kind of compact linear formula spool opening degree control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721301240.0U CN207470885U (en) | 2017-09-30 | 2017-09-30 | A kind of compact linear formula spool opening degree control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470885U true CN207470885U (en) | 2018-06-08 |
Family
ID=62267670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721301240.0U Active CN207470885U (en) | 2017-09-30 | 2017-09-30 | A kind of compact linear formula spool opening degree control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606280A (en) * | 2017-09-30 | 2018-01-19 | 中国船舶重工集团公司第七0四研究所 | A kind of compact linear formula valve element opening degree control device |
| CN110173590A (en) * | 2019-06-27 | 2019-08-27 | 爱诺阀门温州有限公司 | A kind of double-purpose actuator |
-
2017
- 2017-09-30 CN CN201721301240.0U patent/CN207470885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606280A (en) * | 2017-09-30 | 2018-01-19 | 中国船舶重工集团公司第七0四研究所 | A kind of compact linear formula valve element opening degree control device |
| CN107606280B (en) * | 2017-09-30 | 2019-06-28 | 中国船舶重工集团公司第七0四研究所 | A kind of compact linear formula spool opening degree control device |
| CN110173590A (en) * | 2019-06-27 | 2019-08-27 | 爱诺阀门温州有限公司 | A kind of double-purpose actuator |
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