CN109630737A - Full-sealed linear stroke and thrust conversion output device - Google Patents
Full-sealed linear stroke and thrust conversion output device Download PDFInfo
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- CN109630737A CN109630737A CN201910072393.XA CN201910072393A CN109630737A CN 109630737 A CN109630737 A CN 109630737A CN 201910072393 A CN201910072393 A CN 201910072393A CN 109630737 A CN109630737 A CN 109630737A
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- coat body
- lead screw
- screw shaft
- piston cylinder
- terminal pad
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 27
- 210000004907 gland Anatomy 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- 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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a full-sealed linear stroke and thrust conversion output device, which comprises: the outer sleeve component, the lead screw component and the piston cylinder stroke component are arranged in the outer sleeve component; the outer sleeve component comprises an outer sleeve body, an input connecting unit and an output connecting unit, wherein the input connecting unit and the output connecting unit are suitable for being respectively sleeved at two ends of the outer sleeve body in the axial direction; the piston cylinder stroke assembly comprises a piston cylinder which is suitable for being in sliding clearance fit with the inner wall of the accommodating cavity of the outer sleeve body, a connecting bolt is connected to one end of the piston cylinder, facing the output connecting unit, through threads, and a lead screw nut is connected to one end of the piston cylinder, facing the input connecting unit, through threads. The screw assembly comprises a screw shaft sleeved with a screw nut, a limit spiral ring in threaded connection with the tail end of a thread of the screw shaft, a bearing unit arranged between the screw shaft and the inner wall of the accommodating cavity of the outer sleeve body, and a connecting shaft sleeve connected with the end part of the screw shaft, which is far away from the limit spiral ring and extends out of the outer sleeve body.
Description
Technical field
The present invention relates to process control field electric valve executing mechanism technical field more particularly to a kind of hermetically sealed lines
Property stroke and thrust conversion output apparatus.
Background technique
In process control field, many valves are to do straight reciprocating motion by its valve rod band movable valve plug to realize valve
Opening and closing, this requires the electric operators with such valve matched must export linear route and thrust, and
It is not direct output rotary motion and torque.There are two types of electric operator realization linear routes and the mode of thrust output, and one
Kind be integrated output linear route and thrust output electric operator pattern, one is multi-rotary electric actuator and
The combination form of linear route and thrust conversion output apparatus.The former with strong points, narrow scope of application, the latter is wired
Property stroke and thrust output demand when, on the basis of common multi-rotary electric actuator install additional linear route and thrust conversion
For output device to export linear route and thrust, configuration is flexibly, applied widely.Current this linear route and thrust conversion are defeated
Out it is mostly the trapezoidal thread drive mechanism of open type or semi-open type, can not accomplishes to be fully sealed, to the long adaptation of adverse circumstances
It is poor, it can be declined using its transmission efficiency for a long time, influence the normal output of thrust, in addition the control one of its linear route range
As also on valve, not only make the structure of valve complicate, and the debugging of its travel limit range and thrust output is more numerous
It is trivial, it is not easy to tissue production.
Summary of the invention
The object of the present invention is to provide a kind of hermetically sealed linear route and thrust conversion output apparatus, to solve to improve envelope line
The rigidity and environmental suitability technical problem of property stroke and thrust conversion output apparatus.
Hermetically sealed linear route and thrust conversion output apparatus of the invention is achieved in that
A kind of hermetically sealed linear route and thrust conversion output apparatus, comprising: outer jacket member and be set to the outer jacket member
Interior lead screw assembly and piston barrel stroke component；Wherein
The piston barrel stroke component is between the outer jacket member and lead screw assembly；
The outer jacket member includes coat body, and the axis direction both ends suitable for being set in the coat body
Input connection unit and output connection unit；The inner cavity of the coat body has an axis direction for penetrating through the coat body
The receiving cavity at both ends；
The piston barrel stroke component includes cooperating suitable for the receiving cavity inner wall glade plane space with the coat body
Piston cylinder is connected with a connection bolt towards the threaded one end for exporting connection unit in the piston cylinder, and in the piston
The threaded one end of cylinder towards input connection unit is connected with a feed screw nut；
The lead screw assembly includes with the lead screw shaft of feed screw nut socket, in the screw tip screw thread of the lead screw shaft
The bearing unit for being connected with a spacing volution, being equipped between the lead screw shaft and the receiving cavity inner wall of coat body, and
In the connecting bushing for the end connection that the lead screw shaft is far from the spacing volution and stretching is outside the coat body.
In preferred embodiments of the present invention, the input connection unit includes the upper end outer circle set in the coat body
If input terminal pad and the first lock sleeve；It is equipped with hexagon concave-end locking screw in first on first lock sleeve and holds out against institute
State the outside of coat body；
Axial restraint, and the input are carried out by the first elastic spring between the input terminal pad and the first lock sleeve
It is threadedly coupled between terminal pad and the first lock sleeve；And
The output connection unit includes in the output terminal pad that is arranged of lower end outer circle of the coat body and the second lock
It is fixed；The outside that hexagon concave-end locking screw in second holds out against the coat body is equipped on second lock sleeve；
Axial restraint, and the output are carried out by the second elastic spring between the output terminal pad and the second lock sleeve
It is threadedly coupled between terminal pad and the second lock sleeve.
In preferred embodiments of the present invention, the input terminal pad passes through first towards the inner hole side of the coat body
Flat key is connected with the cooperation of the upper end outer circle of the coat body；
The output terminal pad passes through under the second flat key and the coat body towards the inner hole side of the coat body
Outer circle cooperation is held to be connected.
In preferred embodiments of the present invention, the input connection unit further includes the upper end spiral shell in the coat body
The gland of line connection, and be equipped between receiving cavity inner wall and the gland of the gland and the coat body upper end the
One O-ring seals；
The gland, which is equipped with, is suitable for the inner hole that lead screw shaft passes through, and passes through rotary shaft lip seal and lead screw at the inner hole
Cooperation is sealed between axis；
The top of the gland be equipped with for oiling ventilation threaded hole, the threaded hole be suitable for by air vent screw into
Row blocks；And
The output connection unit further includes being equipped with the output terminal pad phase in the lower end of the coat body
Transition even connects disk；The transition connects disk and is fixedly linked by hexagon socket cap head screw and the output terminal pad.
In preferred embodiments of the present invention, the bearing unit includes being screwed the screw thread being connected with the lead screw shaft
Support sleeve and compression loop coil, and the thrust ball bearing being equipped between loop coil is covered and compressed in the threaded support.
In preferred embodiments of the present invention, the connecting bushing passes through the second flat key and institute towards the inner hole side of lead screw shaft
State lead screw shaft connection；And
The connecting bushing is suitable for joining by third flat key and the output shaft of executing agency away from the outside of the lead screw shaft
It connects.
In preferred embodiments of the present invention, the feed screw nut, which is threaded, is fixed on the piston cylinder towards silk
Inside the upper end of thick stick axis；The big end of the connection bolt, which is connected through a screw thread, is fixed on the piston cylinder towards under lead screw shaft
End is internal, and is sealed between connection bolt and the piston cylinder by the second O-ring seals；The small end of the connection bolt is suitable
It is connected in valve rod；And
It is described connection bolt inside be equipped with oiling access opening, and it is described connection bolt intermediate excircle symmetrically mill it is flat simultaneously
It is equipped with the through type forced filling oil cup for being suitable for being connected to oiling access opening.
In preferred embodiments of the present invention, the receiving cavity of the part of the coat body direction output connection unit
Cavity wall is equipped with two seals annular groove；It is living that direction in the closure gasket groove from from piston cylinder to coat body is successively embedded with stairstepping
Stopper rod combination sealing and third O-ring seals.
In preferred embodiments of the present invention, the lateral wall of the feed screw nut towards piston cylinder is equipped with the 4th flat key, with
And it is equipped on the piston cylinder and is suitable for the waist-shaped hole that the 4th flat key passes through, and in the receiving cavity of the coat body
Cavity wall is equipped with the inner hole key slot for being suitable for the insertion of described Siping City key section, i.e., described 4th flat key is passing through the waist-shaped hole rear portion
It is inserted in the inner hole key slot with dividing to limit piston cylinder relative to coat body and rotate.
In preferred embodiments of the present invention, the bearing unit further includes being equipped in threaded support set outer circumferential
Support ring；The support ring is suitable for thrust ball bearing limit between the gland and support ring.
Using above-mentioned technical proposal, the present invention has the following beneficial effects: hermetically sealed linear route of the invention and
Thrust conversion output apparatus, compact-sized and rigidity is good, which realizes hermetically sealed, and environmental suitability is strong, and with the machine of execution
Structure and valve combination configuration are flexible.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hermetically sealed linear route and thrust conversion output apparatus of the invention；
Fig. 2 is the portion the A amplification assumption diagram of Fig. 1；
Fig. 3 is the portion the B amplification assumption diagram of Fig. 1；
Fig. 4 is the sectional structure signal of the connection bolt of hermetically sealed linear route and thrust conversion output apparatus of the invention
Figure；
Fig. 5 is the plan structure signal of the connection bolt of hermetically sealed linear route and thrust conversion output apparatus of the invention
Figure.
In figure: 1, connecting bushing, 2, third flat key, 3, input terminal pad, 4, gland, the 5, first O-ring seals, 6, third
Interior hexagonal clamp screw, 7, threaded support set, the 8, first elastic spring, the 9, the 4th flat key, 10, coat body, 11, feed screw nut,
12-1, the first lock sleeve, 12-2, the second lock sleeve, 13, output terminal pad, 14, third O-ring seals, 15, step piston
Bar combination sealing, the 16, second O-ring seals, 17, connection bolt, 18, through type forced filling oil cup, 19, interior hexagonal cylindrical head spiral shell
Nail, 20, transition connect disk, 21, anti-rotation flat key, 22, spacing volution, 23, elastic cylindrical pin, 24, piston cylinder, 25, lead screw shaft, 26,
Support ring, 27, thrust ball bearing, 28, compression loop coil, 29, rotary shaft lip seal, 30, air vent screw, 31, second is flat
Key, 32, oiling access opening.
Specific embodiment
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
It please refers to shown in Fig. 1 to Fig. 5, present embodiments provides a kind of hermetically sealed linear route and thrust conversion output dress
It sets, comprising: outer jacket member and the 24 stroke component of lead screw assembly and piston cylinder in outer jacket member；Wherein 24 stroke of piston cylinder
Component is between outer jacket member and lead screw assembly.
Outer jacket member includes coat body 10, and the axis direction both ends suitable for being set in coat body 10 is defeated
Enter connection unit and output connection unit；The inner cavity of coat body 10 has the axis direction both ends for penetrating through the coat body 10
Receiving cavity.
24 stroke component of piston cylinder includes the piston suitable for the receiving cavity inner wall glade plane space cooperation with coat body 10
Cylinder 24 is connected with a connection bolt 17 towards the threaded one end for exporting connection unit in piston cylinder 24, and in 24 court of piston cylinder
A feed screw nut 11 is connected with to the threaded one end of input connection unit.Feed screw nut 11 herein be connected through a screw thread realization with
Being fixedly connected between piston cylinder 24.
Lead screw assembly includes the lead screw shaft 25 being socketed with feed screw nut 11, is threaded in the screw tip of lead screw shaft 25
One spacing volution 22, the bearing unit being equipped between lead screw shaft 25 and the receiving cavity inner wall of coat body 10, and in silk
Thick stick axis 25 covers the connecting bushing 1 of the connection of the end outside ontology 10 far from spacing volution 22 and extending.Lead screw shaft 25 passes through
Connecting bushing 1 receives the output torque from electric valve executing mechanism.Lead screw shaft 25 and feed screw nut 11 herein is left-handed
Trapezoidal thread driving coupling.Spacing volution 22 fixes its position by elastic cylindrical pin 23.
Input connection unit includes in the input terminal pad 3 that is arranged of upper end outer circle of coat body 10 and the first lock sleeve
12-1；The outside that hexagon concave-end locking screw in first holds out against coat body 10 is equipped on the first lock sleeve 12-1.Input connects
It connects and axial restraint is carried out by the first elastic spring 8 between disk 3 and the first lock sleeve 12-1, and input terminal pad 3 and the first lock
It is threadedly coupled between fixed 12-1.Outer jacket member is connect by inputting terminal pad 3 with electric valve executing mechanism.Input herein
Terminal pad 3 is connect by the way of being such as, but not limited to threadedly coupled with the first lock sleeve 12-1.The spiral shell of first lock sleeve 12-1
The mating blind hole for being equipped with auxiliary disassembly in pit opposite.
Output connection unit includes in the output terminal pad 13 that is arranged of lower end outer circle of coat body 10 and the second lock sleeve
12-2；The outside that hexagon concave-end locking screw in second holds out against coat body 10 is equipped on the second lock sleeve 12-2；Output connects
It connects and axial restraint is carried out by the second elastic spring between disk 13 and the second lock sleeve 12-2, and export terminal pad 13 and the second lock
It is threadedly coupled between fixed 12-2.Output terminal pad 13 herein is locked by the way of being such as, but not limited to threadedly coupled with second
Fixed 12-2 connection.Match the blind hole for being arranged with auxiliary disassembly in the threaded hole opposite of second lock sleeve 12-2.
Optionally, it is relatively rotated between coat body 10 and input terminal pad 3 and output terminal pad 13 in order to prevent,
An anti-rotation is distributed between lateral wall and input terminal pad 3 and output terminal pad 13 of the coat body 10 away from receiving cavity
Flat key 21.
The coat body 10 of the present embodiment and the first lock sleeve 12-1 and the second lock sleeve 12-2 are all made of steel material
It is made.Input terminal pad 3 and output terminal pad 13 are all made of gray iron material and are made, and the two is using same rough casting processing system
It makes.
Input terminal pad 3 is matched towards the inner hole side of coat body 10 by the first flat key and the upper end outer circle of coat body 10
It closes and is connected；Export lower end outer circle of the terminal pad 13 towards the inner hole side of coat body 10 by the second flat key 31 and coat body 10
Cooperation is connected.Here by the effect of the first flat key and the second flat key 31, input terminal pad 3 and output 13 phase of terminal pad are limited
Mutual rotation for coat body 10.
Input connection unit further includes the gland 4 being threadedly coupled in the upper end of coat body 10, and in gland 4 and outside
Cover the first O-ring seals 5 being equipped between receiving cavity inner wall and the gland 4 of 10 upper end of ontology；Gland 4, which is equipped with, is suitable for lead screw shaft
25 inner holes passed through, and by sealing cooperation between rotary shaft lip seal 29 and lead screw shaft 25 at the inner hole.The top of gland 4
Portion is equipped with the threaded hole for oiling ventilation, and threaded hole is suitable for being blocked by air vent screw 30.Gland 4 and coat body
10 top inner holes are threaded cooperation, and the first O-ring seals 5 are set in the male half coupling outer circle of gland 4.
Output connection unit further includes the transition being connected with output terminal pad 13 being equipped in the lower end of coat body 10
Connect disk 20；Transition connects disk 20 and is fixedly linked by hexagon socket cap head screw 19 and output terminal pad 13.Outer jacket member passed through
It crosses and connects disk 20 and connect with valve to be driven.
Bearing unit includes the threaded support set 7 and compression loop coil 28 being connected that be screwed with lead screw shaft 25, and in spiral shell
The thrust ball bearing 27 being equipped between line support sleeve 7 and compression loop coil 28.Threaded support set 7 herein abuts the adjacent shaft shoulder, and
Thrust ball bearing 27 is set at the external male half coupling of threaded support set 7.It compresses loop coil 28 to be pressed on thrust ball bearing 27, and presses
Tight loop coil 28 is equipped with hexagonal clamp screw 6 in third and follows closely and be pressed in lead screw shaft 25.Match on the threaded hole opposite for compressing loop coil 28
It is arranged with the blind hole of auxiliary disassembly.
Under a kind of optional embodiment, bearing unit further includes covering the support ring that 7 outer circumferentials are equipped in threaded support
26；Support ring 26 is suitable for the limit of thrust ball bearing 27 between gland 4 and support ring 26.Herein from the axis of thrust ball bearing 27
For, thrust ball bearing 27 is partly limited between threaded support set 7 and compression loop coil 28 and thrust ball bearing 27
Another part be limited between gland 4 and support ring 26 so that whole lead screw shaft 25 only makes rotating motion.At this point, whole
The displacement stroke of 24 component of piston cylinder of body is limited between support ring 26 and spacing volution 22.
Connecting bushing 1 is coupled by the second flat key 31 with lead screw shaft 25 towards the inner hole side of lead screw shaft 25；And connecting shaft
Set 1 is suitable for coupling by third flat key 2 with the output shaft of executing agency away from the outside of lead screw shaft 25.
Feed screw nut 11, which is threaded, is fixed on piston cylinder 24 towards inside the upper end of lead screw shaft 25；Connect bolt 17
Big end be connected through a screw thread and be fixed on piston cylinder 24 towards inside the lower end of lead screw shaft 25, and connect bolt 17 and piston cylinder
It is sealed between 24 by the second O-ring seals 16；The small end of connection bolt 17 is suitable for being connected with valve rod.
The inside for connecting bolt 17 is equipped with oiling access opening 32, and the intermediate excircle for connecting bolt 17 symmetrically mills flat and matches
Equipped with the through type forced filling oil cup 18 for being suitable for being connected to oiling access opening 32.
The cavity wall of coat body 10 towards the receiving cavity of the part of output connection unit is equipped with two seals annular groove；Sealing
Step piston bar combination sealing 15 and the 3rd O shape are successively embedded with from piston cylinder 24 to the direction of coat body 10 in annular groove
Sealing ring 14.
The lateral wall of feed screw nut 11 towards piston cylinder 24 is equipped with the 4th flat key 9, and is equipped with and is suitable on piston cylinder 24
The waist-shaped hole that 4th flat key 9 passes through, and the cavity wall of the receiving cavity in coat body 10 is equipped with and is suitable for 9 partial insertion of the 4th flat key
Inner hole key slot, i.e. the 4th flat key 9 is being partially received into inner hole key slot opposite to limit piston cylinder 24 after passing through waist-shaped hole
It is rotated in coat body 10, by the effect of the 4th flat key 9, so that piston cylinder 24 can only be along the receiving cavity wall of coat body 10
On inner hole key slot do the linear movement of axis direction, thrust output and displacement is formed, to realize the open and close of valve.
The hermetically sealed linear route and the specific working principle of thrust conversion output apparatus of the present embodiment are as follows:
Outer jacket member upper end is connect by inputting terminal pad 3 with electric valve executing mechanism, and lower end connects disk by transition
20 connect with valve to be driven.Lead screw assembly only makes rotating motion inside coat body 10, and the connecting shaft for passing through the upper end
Set 1 receives to come from electric valve executing mechanism output torque.Lead screw shaft 25 and feed screw nut 11 are left-handed trapezoidal thread transmission connection
It connects.Housing is partially embedded into after passing through the waist-shaped hole on 24 wall of piston cylinder due to the 4th flat key 9 being fixed on feed screw nut 11
The rotation of limitation 24 component of piston cylinder in the inner hole key slot of ontology 10,24 component of piston cylinder can only be along the inner hole key of coat body 10
Slot does linear movement up and down, thrust output and displacement stroke, realizes the open and close of valve.And whole 24 component of piston cylinder
Displacement stroke be limited between support ring 26 and spacing volution 22, here by change coat body 10,24 and of piston cylinder
The length of the trapezoidal thread part of lead screw shaft 25 can satisfy the mating requirement of different linear routes of valve
Above specific embodiment has carried out further specifically the purpose of the present invention, technical scheme and beneficial effects
It is bright, it should be understood that be not intended to restrict the invention the above is only specific embodiments of the present invention, it is all in the present invention
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done, should be included in protection scope of the present invention it
It is interior.
In the description of the present invention, it is to be understood that, indicating position or the term of positional relationship are based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Directly contacted including the first and second features, also may include the first and second features be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right above sign and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of first feature horizontal height
Less than second feature.
Claims (10)
1. a kind of hermetically sealed linear route and thrust conversion output apparatus characterized by comprising outer jacket member and be set to described
Lead screw assembly and piston barrel stroke component in outer jacket member；Wherein
The piston barrel stroke component is between the outer jacket member and lead screw assembly；
The outer jacket member includes coat body, and the axis direction both ends suitable for being set in the coat body is defeated
Enter connection unit and output connection unit；The inner cavity of the coat body has the axis direction both ends for penetrating through the coat body
Receiving cavity；
The piston barrel stroke component includes the piston suitable for the receiving cavity inner wall glade plane space cooperation with the coat body
Cylinder is connected with a connection bolt towards the threaded one end for exporting connection unit in the piston cylinder, and in the piston cylinder court
A feed screw nut is connected with to the threaded one end of input connection unit；
The lead screw assembly includes being threadedly coupled with the lead screw shaft of feed screw nut socket, in the screw tip of the lead screw shaft
The bearing unit for having a spacing volution, being equipped between the lead screw shaft and the receiving cavity inner wall of coat body, and in institute
Lead screw shaft is stated far from the spacing volution and stretches out the connecting bushing of the end connection outside the coat body.
2. hermetically sealed linear route according to claim 1 and thrust conversion output apparatus, which is characterized in that the input
Connection unit includes in the input terminal pad that is arranged of upper end outer circle of the coat body and the first lock sleeve；In first lock
The fixed outside for being equipped with hexagon concave-end locking screw in first and holding out against the coat body；
Axial restraint is carried out by the first elastic spring between the input terminal pad and the first lock sleeve, and the input connects
It is threadedly coupled between disk and the first lock sleeve；And
The output connection unit includes in the output terminal pad that is arranged of lower end outer circle of the coat body and the second lock sleeve；
The outside that hexagon concave-end locking screw in second holds out against the coat body is equipped on second lock sleeve；
Axial restraint is carried out by the second elastic spring between the output terminal pad and the second lock sleeve, and the output connects
It is threadedly coupled between disk and the second lock sleeve.
3. hermetically sealed linear route according to claim 2 and thrust conversion output apparatus, which is characterized in that the input
Terminal pad is connected by the first flat key with the cooperation of the upper end outer circle of the coat body towards the inner hole side of the coat body；
The output terminal pad passes through outside the lower end of the second flat key and the coat body towards the inner hole side of the coat body
Circle cooperation is connected.
4. being existed according to the described in any item hermetically sealed linear routes of Claims 2 or 3 and thrust conversion output apparatus, feature
In the input connection unit further includes the gland being threadedly coupled in the upper end of the coat body, and in the gland
The first O-ring seals being equipped between receiving cavity inner wall and the gland of the coat body upper end；
The gland, which is equipped with, is suitable for the inner hole that passes through of lead screw shaft, and at the inner hole by rotary shaft lip seal and lead screw shaft it
Between seal cooperation；
The top of the gland is equipped with the threaded hole for oiling ventilation, and the threaded hole is suitable for being sealed by air vent screw
It is stifled；And
The output connection unit further includes being connected what the lower end of the coat body was equipped with the output terminal pad
Transition connects disk；The transition connects disk and is fixedly linked by hexagon socket cap head screw and the output terminal pad.
5. hermetically sealed linear route according to claim 1 and thrust conversion output apparatus, which is characterized in that the bearing
Unit include be screwed with the lead screw shaft be connected threaded support set and compress loop coil, and the threaded support set and
Compress the thrust ball bearing being equipped between loop coil.
6. according to claim 1 or 5 described in any item hermetically sealed linear routes and thrust conversion output apparatus, feature exist
In the connecting bushing is coupled by the second flat key with the lead screw shaft towards the inner hole side of lead screw shaft；And
The connecting bushing is suitable for coupling by third flat key with the output shaft of executing agency away from the outside of the lead screw shaft.
7. hermetically sealed linear route according to claim 1 and thrust conversion output apparatus, which is characterized in that the lead screw
Nut, which is threaded, is fixed on the piston cylinder towards inside the upper end of lead screw shaft；The big end of the connection bolt passes through
Threaded connection is fixed on the piston cylinder towards passing through the inside the lower end of lead screw shaft, and between connection bolt and the piston cylinder
The sealing of two O-ring seals；The small end of the connection bolt is suitable for being connected with valve rod；And
The inside of the connection bolt is equipped with oiling access opening, and the intermediate excircle of the connection bolt is symmetrically milled flat and is arranged
There is the through type forced filling oil cup for being suitable for being connected to oiling access opening.
8. hermetically sealed linear route according to claim 1 and thrust conversion output apparatus, which is characterized in that the housing
The cavity wall of ontology towards the receiving cavity of the part of output connection unit is equipped with two seals annular groove；By living in the closure gasket groove
Plug tube is successively embedded with step piston bar combination sealing and third O-ring seals to the direction of coat body.
9. hermetically sealed linear route according to claim 1 and thrust conversion output apparatus, which is characterized in that the lead screw
The lateral wall of nut towards piston cylinder is equipped with the 4th flat key, and is equipped on the piston cylinder and passes through suitable for the 4th flat key
Waist-shaped hole, and the coat body receiving cavity cavity wall be equipped be suitable for described Siping City key section insertion inner hole key
Slot, i.e., described 4th flat key are partially received into the inner hole key slot opposite to limit piston cylinder after passing through the waist-shaped hole
It is rotated in coat body.
10. hermetically sealed linear route according to claim 5 and thrust conversion output apparatus, which is characterized in that the axis
Bearing unit further includes the support ring being equipped in threaded support set outer circumferential；The support ring is suitable for the thrust ball axis
Limit is held between the gland and support ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072393.XA CN109630737A (en) | 2019-01-25 | 2019-01-25 | Full-sealed linear stroke and thrust conversion output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072393.XA CN109630737A (en) | 2019-01-25 | 2019-01-25 | Full-sealed linear stroke and thrust conversion output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630737A true CN109630737A (en) | 2019-04-16 |
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|---|---|---|---|
| CN201910072393.XA Pending CN109630737A (en) | 2019-01-25 | 2019-01-25 | Full-sealed linear stroke and thrust conversion output device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202418848U (en) * | 2011-12-30 | 2012-09-05 | 苏州德兰能源科技有限公司 | Linear actuating mechanism |
| CN103883789A (en) * | 2014-03-26 | 2014-06-25 | 上海奇忠控制设备有限公司 | Linear thruster |
| CN204099684U (en) * | 2014-08-25 | 2015-01-14 | 天津百利二通机械有限公司 | Electric device for valve thrust connects dish structure |
| US20160146372A1 (en) * | 2013-07-19 | 2016-05-26 | Aktiebolaget Skf | Valve operator assembly with compensating actuator |
| JP2018048693A (en) * | 2016-09-21 | 2018-03-29 | オリエンタルモーター株式会社 | Linear actuator and linear actuator device |
| CN209587282U (en) * | 2019-01-25 | 2019-11-05 | 常州机电职业技术学院 | Full-sealed linear stroke and thrust conversion output device |
-
2019
- 2019-01-25 CN CN201910072393.XA patent/CN109630737A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202418848U (en) * | 2011-12-30 | 2012-09-05 | 苏州德兰能源科技有限公司 | Linear actuating mechanism |
| US20160146372A1 (en) * | 2013-07-19 | 2016-05-26 | Aktiebolaget Skf | Valve operator assembly with compensating actuator |
| CN103883789A (en) * | 2014-03-26 | 2014-06-25 | 上海奇忠控制设备有限公司 | Linear thruster |
| CN204099684U (en) * | 2014-08-25 | 2015-01-14 | 天津百利二通机械有限公司 | Electric device for valve thrust connects dish structure |
| JP2018048693A (en) * | 2016-09-21 | 2018-03-29 | オリエンタルモーター株式会社 | Linear actuator and linear actuator device |
| CN209587282U (en) * | 2019-01-25 | 2019-11-05 | 常州机电职业技术学院 | Full-sealed linear stroke and thrust conversion output device |
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