CN209524139U

CN209524139U - The actuator of mixed type rotary motion valve door switch

Info

Publication number: CN209524139U
Application number: CN201822172870.3U
Authority: CN
Inventors: 唐瑞忠
Original assignee: Zhejiang Dunhaosi Hardware Industrial Co Ltd
Current assignee: Zhejiang Dunhaosi Hardware Industrial Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-10-22
Anticipated expiration: 2028-12-24

Abstract

The utility model relates to valve actuator fields, the actuator of open mixed type rotary motion valve door switch, including actuator ontology, actuator shell, it is sequentially installed with upper flange from top to bottom in actuator shell, bearing, sealing element, camshaft, idler wheel, piston, spring, bearing, gear shaft and lower flange, the upper end of camshaft is mounted in upper flange, camshaft and gear shaft rotate synchronously, gear shaft is engaged with rack tooth cylinder, bearing is mounted on outside the joint portion of camshaft and gear shaft, the lower end of gear shaft is fixed on bearing to be mounted in lower flange, and it stretches out and is connect in vitro with control piece.The utility model can guarantee have enough torques to export, in the initial and end position of valve opened or closed so as to efficiently and effectively close and opening angle stroke class valve.It is provided simultaneously with through adjustment spring dynamics and adjusts the function of torque, and may be implemented to automatically control, solve the problems, such as being automatically closed and opening for angular travel valve when emergency.

Description

The actuator of mixed type rotary motion valve door switch

Technical field

The utility model relates to valve actuator field more particularly to the actuators of mixed type rotary motion valve door switch.

Background technique

The actuator of rotary motion valve door switch is used in butterfly valve, the actuator of valve is opened or closed on the valves such as ball valve.It is Using angular displacement come control valve openings of sizes, such actuator is angular travel valve actuator.

The main Electric Actuator of existing actuator and two kinds of pneumatic actuator, the hardly use surged.It is wherein electronic Be it is more, pneumatic takes second place, and Electric Actuator is still used cooperatively with motor and reducer of turbodrill, can positive and negative rotation use, pneumatically Actuator is to drive rack and pinion mechanism to realize using the reciprocating motion of cylinder.The shortcomings that Electric Actuator, is, just in case do not have There is power supply, the closing and opening of valve substantially manually operate to complete.When especially having fire generation, manual operation With regard at big problem.Although pneumatic actuator also can be made normally opened or closed type, also because dynamics is inadequate when being automatically closed And be unable to completely close, affect the performance of actuator.

Application number CN201210283468.7 is Chinese invention patent, discloses a kind of small ball valve actuator with one-way ratchet wheel, By upper casing, motor wiring board, motor, motor gear, handle, transfer wheel, ratchet, wiring board, microswitch, cam, drive shaft, Circlip, knurled nut, lower casing, connector, gasket, attachment cap, valve body, valve rod, ball sealer, valve seat, valve deck are formed.Valve body is Three-way body is connect by attachment cap with connector, is threadedly coupled after being packed into valve seat, ball sealer in valve body cavity with valve deck, valve body Support interface connected by circlip, knurled nut and lower casing.Drive shaft, cam and drive shaft one are installed in lower casing through hole, pass It passs wheel and cam to be keyed, transfer wheel pawl makees elastic telescopic dependent on long cantilever, and ratchet is against transfer wheel pawl when maneuvering condition Rotation, ratchet tooth root rotate together against ratchet pawl point.Structure is complicated for this actuator, craftsmanship is bad, and without automatic Open or close the function of valve closing door.

Since angular travel valve on and off is initial at the end of, the torsion of valve rod is maximum, and existing actuator is not easy Solve the problems, such as this.Therefore need to provide a kind of actuator for solving this problem, i.e., open or close valve closing door it is initial and at the end of, There can be very big torque output, so as to close rapidly and Open valve.It, can be with for the place that personnel cannot reach in time It is automatically closed in time or Open valve.

Summary of the invention

Dynamics inadequate disadvantage when the utility model is automatically closed for the prior art provides mixed type angular travel valve and opens The actuator of pass.

In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:

The actuator of mixed type rotary motion valve door switch, including actuator ontology, actuator ontology include actuator shell, Upper flange, camshaft, bearing, gear shaft and lower flange, the upper end of camshaft are sequentially installed in actuator shell from top to bottom It is mounted in upper flange, the interface of camshaft and upper flange is equipped with the first sealing ring, and camshaft is synchronous with gear shaft fitting to be turned Dynamic, bearing is mounted on outside the joint portion of camshaft and gear shaft, and the interface of gear shaft and lower flange is equipped with the second sealing ring.The One sealing ring and the second sealing ring make to form closed empty slot in actuator shell, can only pass through actuator shell when gas is passed through Above body, the row of exhausting-gas hole of cam side sends as an envoy to air pressure and spring force, valve torque balance.

Preferably, the lower end of gear shaft stretches out lower flange and passes through shaft coupling connection and synchronous rotation with the valve rod of valve Turn, cam is installed on camshaft, gear is installed, camshaft and gear shaft are respectively with moving cam and gear and valve on gear shaft Bar rotates synchronously.Driving link is used as simultaneously using gear and cam, is divided using the first spring and second spring as gear and cam The driven member not pushed cooperates speed adjusting gear to control the actuator of angular travel valve switching angle degree and speed, there is bigger move Power, control valve have bigger stability when switching.

Preferably, including first chamber and second chamber, first chamber and second chamber (two chambers in actuator shell Room can be such as vertical or ipsilateral according to the circumferential any direction of the centrally disposed axis of space structure) it is connected separately with the first cylinder body With the second cylinder body, cam is mounted in first chamber, and gear is mounted in second chamber, and actuator shell, which is equipped with, makes first chamber The through-hole being connected to second chamber is additionally provided with air inlet and air outlet on actuator shell, and air inlet is externally provided with control air inlet The solenoid valve of opening and closing.

Preferably, being equipped with idler wheel, cam piston, the first spring in the first cylinder body, the side of cam piston is equipped with slot Body, the other side of cam piston and the first spring connect, and idler wheel is mounted in groove body and engages with cam piston, cam Outer edge is the closed arc for changing radian, and cam and idler wheel connect.

Preferably, cam rotates pushing rolling wheels, idler wheel pushes cam piston to compress the first spring.The cross section of cam is Idler wheel can be rolled with the arc of cam when changing the closed arc of radian, therefore turn-taking, and form the axial movement along cylinder body, thus Idler wheel is driven to push direction or the first reactive spring force push piston of the first spring, reversed pushing rolling wheels to, idler wheel drives convex Wheel shaft rotates backward, and realizes the reversion of valve.

Preferably, be additionally provided with rack piston in second chamber, second spring is installed in the second cylinder body, in rack piston Equipped with empty slot, the cell wall of empty slot is equipped with rack gear, and wheel and rack engagement, side and the actuator shell of rack piston form close The third cavity closed, air inlet are connected to third cavity, and the other side of rack piston and second spring connect.In the first chamber Separate configuration spring in room and second chamber, is reliably prevented from the interference of spring action, can accurately generate closing forces, And gas can also swimmingly be entered in actuator shell.

Preferably, gear rotation drives rack piston straight line back and forth movement, rack piston pushes and compresses second spring.

Preferably, the end of the first cylinder body and the second cylinder body is designed with blind flange, force adjustment screw rod is installed on blind flange, First cylinder body and the intracorporal force adjustment screw rod of the second cylinder are connect with one end of the first spring and second spring by force adjustment pressing plate respectively. Two intracorporal components of cylinder match, open or close valve closing door initially and at the end of, guarantee can there is very big torque to export, from And it can close rapidly and Open valve.It is provided simultaneously with adjustable function, spring pressure can be increased or decreased.

Preferably, two force adjustment pressing plates are connected with the first spring and second spring respectively, adjusting screw rod rotates simultaneously Two force adjustment pressing plates are pushed to slide the elastic force for adjusting the first spring and second spring in the first cylinder body, the second cylinder body respectively.It is logical Toning forces plate, and the first spring and second spring are not fixed close to one end of blind flange in blind flange one end, but can be controlled The elastic force of slidable adjustment spring adjusts pressing plate and is fixed in the first cylinder body and the second cylinder body and slides by axial guide post.

Preferably, the upper end of camshaft is equipped with the display panel for showing rotation angle.Spring pressure is adjustable, simultaneously The rotational angle of camshaft and gear shaft may be displayed on on graduated display panel.

Cooperate electronic, pneumatic actuator uses, and can (such as: having a power failure, when fire) be automatically closed in the state of emergency.

The utility model is due to using above technical scheme, and have significant technical effect: the utility model provides mixed The actuator of mould assembly rotary motion valve door switch, primary structure are used as driving link using gear pair and cam are secondary simultaneously, are with spring Driven member cooperates speed adjusting gear to control the actuator of angular travel valve switching angle degree and speed, compared with conventional actuators, has There is structure novel, compact, controlled valve is stablized, and torsion is big, and processing technology is good, and spare and accessory parts are versatile, can be automatically closed, can With speed regulation, the advantages that force adjustment is spent.The function of opening and closing automatically angular travel valve in the power-off state may be implemented, it is especially suitable The pipe-line system normally opened or normally closed for petrochemical industry etc..

Detailed description of the invention

Fig. 1 is the structural schematic diagram of utility model.

Fig. 2 is the cross-sectional view of horizontal plane where gear and rack piston central axis.

Fig. 3 is upper flange, camshaft, bearing, gear shaft and the lower flange explosive view installed in actuator shell.

Fig. 4 is the internal structure cooperation schematic diagram of utility model.

Torque curve figure when Fig. 5 is valve automatic switch.

The toponym that each number designation is referred in the figures above is as follows: where 1-actuator ontology, 11-execute Device shell, 12-first chambers, 13-second chambers, the 14-the first cylinder body, the 15-the second cylinder body, 16-blind flanges, on 111- Flange, 112-camshafts, 113-bearings, 114-gear shafts, 115-lower flanges, the 116-the first sealing ring, 117-the second Sealing ring, 118-air inlets, 119-third cavitys, 131-rack pistons, 141-idler wheels, 142-cam pistons, 143- First spring, 151-second springs, 161-force adjustment screw rods, 162-force adjustment pressing plates, 1121-cams, 1141-gears.

Specific embodiment

The utility model is described in further detail with embodiment with reference to the accompanying drawing.

Embodiment 1

The actuator of mixed type rotary motion valve door switch, as shown in Figs. 1-5, including actuator ontology 1, actuator ontology 1 Be sequentially installed with from top to bottom including actuator shell 11, in actuator shell 11 upper flange 111, camshaft 112, bearing 113, Gear shaft 114 and lower flange 115, the upper end of camshaft 112 are mounted in upper flange 111, camshaft 112 and upper flange 111 Interface is equipped with the first sealing ring 116, and the lower end of camshaft 112 is bonded synchronous rotation with gear shaft 114, and bearing 113 is mounted on Outside the joint portion of camshaft 112 and gear shaft 114, the interface of gear shaft 114 and lower flange 115 is equipped with the second sealing ring 117.

The lower end of gear shaft 114 stretches out lower flange 115 and connect simultaneously synchronous rotary by shaft coupling with the valve rod of valve, convex Cam 1121 is installed on wheel shaft 112, gear 1141 is installed on gear shaft 114, camshaft 112 and gear shaft 114 band respectively Moving cam 1121 and gear 1141 and valve rod rotate synchronously.

It include first chamber 12 and second chamber 13 in actuator shell 11, first chamber 12 and second chamber 13 connect respectively It is connected to the first cylinder body 14 and the second cylinder body 15, cam 1121 is mounted in first chamber 12, and gear 1141 is mounted on second chamber In 13, actuator shell 11 is equipped with the through-hole for being connected to first chamber 12 with second chamber 13, is additionally provided on actuator shell 11 Air inlet 118 and gas outlet, air inlet 118 are externally provided with the solenoid valve that control air inlet 118 is opened and closed.

Idler wheel 141, cam piston 142, the first spring 143 are installed, the side of cam piston 142 is set in first cylinder body 14 There is groove body, the other side of cam piston 142 and the first spring 143 connect, and idler wheel 141 is mounted in groove body and lives with cam 142 engaging of plug, the outer edge of cam 1121 are the closed arc for changing radian, and cam 1121 and idler wheel 141 connect.

Cam 1121 rotates pushing rolling wheels 141, and idler wheel 141 pushes cam piston 142 to compress the first spring 143.Cam Cross section is two ellipses with 90 ° of off(-)center of superposition of cam, therefore while turn-taking has side pushing rolling wheels

It is additionally provided with rack piston 131 in second chamber 13, second spring 151, rack piston are installed in the second cylinder body 15 Empty slot is equipped in 131, the cell wall of empty slot is equipped with rack gear, and gear 1141 is engaged with rack, the side of rack piston 131 and execution Device shell 11 forms closed third cavity 119, and air inlet 118 is connected to third cavity 119, the other side of rack piston 131 It is connected with second spring 151.

The rotation of gear 1141 drives 131 straight line back and forth movement of rack piston, and rack piston 131 pushes and compresses second spring 151。

The end of first cylinder body 14 and the second cylinder body 15 is designed with blind flange 16, and force adjustment screw rod is equipped on blind flange 16 161, force adjustment screw rod 161 in the first cylinder body 14 and the second cylinder body 15 one end with the first spring 143 and second spring 151 respectively It is connected by force adjustment pressing plate 162.

Two force adjustment pressing plates 162 are connected with the first spring 143 and second spring 151 respectively, and adjusting screw rod 161 rotates And it pushes two force adjustment pressing plates 162 to slide respectively and adjusts the first spring 143 and the second bullet in the first cylinder body 14, the second cylinder body 15 The elastic force of spring 151.

The upper end of camshaft 112 is equipped with the display panel for showing rotation angle.

Embodiment 2

The actuator of mixed type rotary motion valve door switch, when valve to be opened or closed, solenoid valve is opened, compressed gas It is filled with third cavity 119 by air inlet 118, pushes rack piston 131 mobile to 151 side of second spring, therefore, the second bullet Spring 152 gradually reduces under the promotion of rack piston 131, and the pressure of spring is changed from small to big, and compresses second spring 151, storage Standby elastic potential energy；Since rack piston 131 is engaged with gear, rack piston 131 is rotated with moving gear, thus with movable gear shaft 114 rotations, simultaneously as gear shaft 114, camshaft 112 are rotated synchronously and rotated with moving cam 1121, cam 1121 pushes rolling Wheel 141, to make cam piston 142 by thrust, cam piston 142 is in contact with the first spring 143, the first spring 143 are also compressed under the promotion of cam piston 142, energy reserve.At this point, two springs are all compressed, enough energy are laid in Amount.The pressure that air pressure generates overcomes the pressure that the torsion of valve rod, the first spring, second spring generate, generated power Reach balance, due to devising limit to rack piston 131, the valve rod of valve is made to rotate to designated position.When control solenoid valve When commutation, valve is closed or opened.If remaining that air pressure continuously supplies, valve just remains a kind of state.

Embodiment 3

The actuator of mixed type rotary motion valve door switch, when due to power failure or emergency generation, solenoid valve playback, gas Pressure, valve rod, spring the balance of elastic force be broken, air pressure is released in third cavity 1141, to the pressure of rack piston 131 Power disappears, and the pressure of two springs is just released, and rack piston 131 pushes gear shaft 114 to revolve under the action of second spring 151 Turn, meanwhile, cam 1121 is also pushed by the first spring 143 and is rotated, so that camshaft 112, gear shaft 114 be made to receive two instead The power turned closes or opens valve to reversely rotate with ovable valve stem.

Embodiment 4

The actuator of mixed type rotary motion valve door switch, as shown in figure 5, detection have a power failure when, valve automatically open or When closing, the torque of the first spring, the pressure of second spring, the pretightning force of the first spring, the first spring and second spring, which are closed, to be turned round Square, valve generate torque, be depicted as curve shown in fig. 5, illustrate open or close valve closing door initially and at the end of, can have very Big torque output, so as to efficiently and effectively close and Open valve, in emergency, valve realization is automatically closed and opens.

In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the patents institute The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.

Claims

1. the actuator of mixed type rotary motion valve door switch, including actuator ontology (1), it is characterised in that: actuator ontology (1) Be sequentially installed with from top to bottom including actuator shell (11), in actuator shell (11) upper flange (111), camshaft (112), Bearing (113), gear shaft (114) and lower flange (115), the upper end of camshaft (112) are mounted in upper flange (111), cam Axis (112) and the interface of upper flange (111) are equipped with the first sealing ring (116), and camshaft (112) is bonded with gear shaft (114) It rotates synchronously, bearing (113) is mounted on outside the joint portion of camshaft (112) and gear shaft (114), gear shaft (114) and laxative remedy The interface of blue (115) is equipped with the second sealing ring (117).

2. the actuator of mixed type rotary motion valve door switch according to claim 1, it is characterised in that: gear shaft (114) Lower end stretch out lower flange (115) and simultaneously synchronous rotary connect by shaft coupling with the valve rod of valve, camshaft installs on (112) Have cam (1121), be equipped on gear shaft (114) gear (1141), camshaft (112) and gear shaft (114) drive convex respectively It takes turns (1121) and gear (1141) and valve rod rotates synchronously.

3. the actuator of mixed type rotary motion valve door switch according to claim 1, it is characterised in that: actuator shell It (11) include first chamber (12) and second chamber (13) in, first chamber (12) and second chamber (13) are connected separately with first Cylinder body (14) and the second cylinder body (15), cam (1121) are mounted in first chamber (12), and gear (1141) is mounted on the second chamber In room (13), actuator shell (11) is equipped with the through-hole for being connected to first chamber (12) with second chamber (13), actuator shell (11) air inlet (118) and gas outlet are additionally provided on, air inlet (118) is externally provided with the solenoid valve of control air inlet (118) opening and closing.

4. the actuator of mixed type rotary motion valve door switch according to claim 3, it is characterised in that: the first cylinder body (14) Idler wheel (141), cam piston (142), the first spring (143) are inside installed, the side of cam piston (142) is equipped with groove body, convex The other side and the first spring (143) for taking turns piston (142) connect, and idler wheel (141) is mounted in groove body and and cam piston (142) engage, the outer edge of cam (1121) be the closed arc of variation radian, cam (1121) and idler wheel (141) company of contact It connects.

5. the actuator of mixed type rotary motion valve door switch according to claim 4, it is characterised in that: cam (1121) turns Dynamic pushing rolling wheels (141), idler wheel (141) push cam piston (142) compression the first spring (143).

6. the actuator of mixed type rotary motion valve door switch according to claim 5, it is characterised in that: second chamber (13) It is inside additionally provided with rack piston (131), is equipped with second spring (151) in the second cylinder body (15), sky is equipped in rack piston (131) The cell wall of slot, empty slot is equipped with rack gear, and gear (1141) is engaged with rack, the side of rack piston (131) and actuator shell (11) form closed third cavity (119), air inlet (118) is connected to third cavity (119), rack piston (131) it is another Side and second spring (151) connect.

7. the actuator of mixed type rotary motion valve door switch according to claim 6, it is characterised in that: gear (1141) rotation Turn to drive rack piston (131) straight line back and forth movement, rack piston (131) pushes and compresses second spring (151).

8. the actuator of mixed type rotary motion valve door switch according to claim 7, it is characterised in that: the first cylinder body (14) It is designed with blind flange (16) with the end of the second cylinder body (15), force adjustment screw rod (161), the first cylinder body is installed on blind flange (16) (14) the force adjustment screw rod (161) and in the second cylinder body (15) is logical with one end of the first spring (143) and second spring (151) respectively Toning forces plate (162) connection.

9. the actuator of mixed type rotary motion valve door switch according to claim 8, it is characterised in that: two force adjustment pressing plates (162) it is connected respectively with the first spring (143) and second spring (151), force adjustment screw rod (161) rotates and pushes two tune It forces plate (162) and slides adjusting the first spring (143) and second spring in the first cylinder body (14), the second cylinder body (15) respectively (151) elastic force.

10. the actuator of mixed type rotary motion valve door switch according to claim 1, it is characterised in that: camshaft (112) Upper end be equipped with for show rotate angle display panel.