CN102401176A - Operating device - Google Patents
Operating device Download PDFInfo
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- CN102401176A CN102401176A CN2010102871013A CN201010287101A CN102401176A CN 102401176 A CN102401176 A CN 102401176A CN 2010102871013 A CN2010102871013 A CN 2010102871013A CN 201010287101 A CN201010287101 A CN 201010287101A CN 102401176 A CN102401176 A CN 102401176A
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- transmission piece
- rail bar
- operation equipment
- rotatingshaft
- rotary threaded
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Abstract
The invention provides an operating device. A movement torque required for the fully closing or fully opening of a valve can be sufficiently obtained. The operating device is provided with a swinging Scotch yoke fixedly installed on a rotary shaft, a transfer block being clamped on the Scotch yoke in a free sliding manner and making linear movement, a rotary threaded shaft embedded on the transfer block to drive the transfer block to make a linear movement and a rotation driving device installed on the end part of the rotary threaded shaft and used for driving the rotary threaded shaft to rotate, wherein the Scotch yoke is provided with a two-tined arm extending from the rotary shaft and clamping the transfer block and specified-width rail bar parts relatively arranged on two inner sides of the arm; the two end parts of the transfer block in the length direction of two side faces clamped by the two-tined arm are provided with push parts, and the push parts are butted against the rail bar parts in correspondence with the rotating radius and the swinging angle required by the Scotch yoke. For the operating device, the rotary shaft is directly linked to a valve rod of the valve to be used as the operating device for operating the valve.
Description
Technical field
The present invention relates to be used to make the operation equipment of valve events, relating in particular to the operation that makes based on rotating power becomes possible operation equipment.
Background technique
In the operation equipment that the switching of valve is moved; Following operation equipment is arranged; Carry out the input of manually operated type, electrodynamic type, air motor formula etc. through the rotation driving; And make through the rotation that obtains thus and to transmit piece and move, move through this and make Scotland yoke (Scotch yoke) swing and will move and convert rotation action to, carry out the switching of valve.
As existing operation equipment; In the operation equipment of manually operated type; The operation equipment that the use gear on worm of that kind shown in Figure 8 is arranged; This operation equipment is made up of gear reducer, and this gear reducer is with worm gear 6 combinations on the valve rod that is installed in valve 9 of the worm shaft of input end 5 and output terminal.In this operation equipment, can change reduction speed ratio through the number of teeth of increase and decrease worm gear 6, produce output torque, thereby valve rod 9 rotations of valve are opened and closed valve.
In addition; Operation equipment as general Scotland yoke formula; As shown in Figure 9, the worm shaft of the device of alternate figures 8, and the rotary threaded axle 3 that fixed-site also can be rotated around the axle center at same position is set; And alternative worm gear and Scotland yoke 1 is set; Rotary threaded axle 3 and transmission piece 2 actions with the interior threaded hole 28 that can this rotary threaded axle 3 be screwed in are linked, and assembling can form this operation equipment thus through the transmission piece 2 that moves on its axis direction that is rotated in of rotary threaded axle 3.In this operation equipment, the rotation through rotary threaded axle 3 makes transmits piece 2 and moves.Thus, making Scotland yoke 1 is center swing with rotatingshaft 12, can the mode of carrying out the switching of valve moves Scotland yoke 1 so that be attached at that rotatingshaft 12 on the valve rod 9 of valve rotates.Transmit on the piece 2; With the rectangular direction of axis of the interior threaded hole 28 that supplies rotary threaded axle 3 to screw on; Be provided with from bi-side outstanding cylindrical part 24 ', 26 '; Make this cylindrical part 24 ', 26 ' be entrenched in the cylindrical part sliding-groove 143,163 of Scotland yoke 1, make and transmit piece 2 and on the axial direction of rotary threaded axle 3, move and make 1 swing of Scotland yoke thus, on the rotatingshaft on the valve rod that is attached at valve 9 12, produce rotation based on output torque.
As above-mentioned shown in Figure 8, use in the operation equipment of gear on worm mode of worm screw and worm gear, on each position in the open position of the valve that can open and close, closed position, neutral position; The output torque that obtains in these positions is identical; Under the power condition of different that the switching station at the valve of each operating position needs, especially at heavy caliber, be used in the ball valve of high pressure more, as shown in Figure 7; Moment of torsion uprises when closing; When open and until middle the open position of valve, required torque reduces gradually, become constant moment of torsion with the moment of torsion of stipulating thereafter.Therefore, when the closing of valve, also hope to access the high moment of torsion of trying one's best for a short time even measure, but in the operation equipment of use gear on worm mode shown in Figure 8, the output torque when valve opens and closes is constant, as operation equipment, rotary manipulation needs action force.
In addition, in the operation equipment of Scotland of that kind as shown in Figure 9 yoke formula, its output torque is as following detailed description; In addition, as shown in Figure 7, in the neutral position of action; Identical with the operation equipment of use gear on worm shown in Figure 8; But in open position, the closed position of valve, output torque T becomes the torque T a of the twice in neutral position, is uniform owing to hope to make the act of operation power of transmitting the handle 4 that piece 2 moves; Therefore, hope can realize the operation that output torque T can correspondingly uprise with it.
Below, about operation equipment shown in Figure 9, its structure and the mechanism that produces output torque are described.
Shown in figure 11; Transmit in the piece 2; In connecting this internal thread part 28 that transmits piece 2, screw in and chimeric rotary threaded axle 3; Two cylindrical part 24 ', 26 ' be entrenched in the cylindrical part sliding-groove 143,163 with the mode that can slide; These cylindrical part sliding-groove 143,163 holes as length direction are located on two arms 14,16 of Scotland yoke 1 shown in Figure 10, and, two cylindrical part 24 ', 26 ' with respect to being located at transmission piece guiding element 7 on shell 8 and the loam cake (not shown) engaging simultaneously along the mode that rotary threaded axle 3 moves and be provided with.
In such operation equipment shown in Figure 9; Make 3 rotations of rotary threaded axle at rotating operation handle 4, make and transmit under piece 2 situation that direction moves to the left and right in Fig. 9; Though handle 4 is rotated operation, 3 rotations of rotary threaded axle; But, therefore, transmit piece 2 by the sense of rotation of handle 4, arbitrary direction moves to the left and right because rotary threaded axle 3 itself do not move.Thus; Transmit the cylindrical part 24 of piece ', 26 ' pushing is located at the cylindrical part sliding-groove 143,163 on the arm 14,16 of Scotland yoke 1; Therefore Scotland yoke 1 is swung to arbitrary direction; The valve rod 9 that is entrenched in the valve in the embedding hole 18 of rotatingshaft 12 of Scotland yoke 1 together rotates with rotatingshaft 12, can carry out the switching of valve.
Make Figure 10 and Scotland yoke shown in Figure 11 1 and transmitting in the operation equipment shown in Figure 9 that piece 2 combines; Transmitting piece 2 as stated carries out along the straight line motion of rotary threaded axle 3; Scotland yoke 1 swing, thus, the information slip that will in rotation angle is 90 ° scope, move is shown among Fig. 7.Such rotatingshaft 12 is only rotated under the situation of the angle of stipulating; Action specification figure through Figure 12; To that kind shown in Figure 7, in 45 ° apart from the neutral position rotation angle range, carry out the position at the two end part of oscillating motion, the situation of comparing output torque with the neutral position and become twice describes, then be described below.The size of representing each one shown in Figure 12 with mark.
That is, at this, if make F: the power that the rotation through handle 4 produces,
Rt: produce the power of moment of torsion,
L: the distance between the cylindrical part center of the center 20 of the valve rod embedding hole 18 of the rotatingshaft 12 of Scotland yoke 1 and transmission piece 2,
E: the distance between the center 20 of the valve rod embedding hole 18 of the rotatingshaft 12 of Scotland yoke 1 and the central axis 30 of rotary threaded axle 3,
η: efficiency of movement,
Then output torque does
T＝Rt·l·η
In the case, since Rt=F/cos θ, l=e/cos θ,
T=(Fe/cos then
245 °) η
The position at the two ends of opening and closing of valve is symmetrical with respect to the neutral position, and each position is θ=45 ° if make, and then the output torque Ta of the position at two ends does
Ta＝(F·e/cos
245°)·η＝2·F·e·η
This output torque characteristic is illustrated, then become the T that is represented by dotted lines among Fig. 7.That is, when being θ=0 ° in the neutral position, output torque T
0Be T
0=Fe η, therefore, Ta=2T
0, two ends open and close the place, become the output torque of the twice in neutral position.
Especially, because the moment of torsion that the switching station of ball valve needs generally has the characteristic of the T of that kind shown in Figure 7, therefore, this fact of retarder of yoke formula can be understood in suitable Scotland of operation equipment of the switching that is used for valve.
In addition, when ball valve needs most moment of torsion from closing trend when opening, therefore, the closed position side is θ=50 ° if make, and the open position side is θ=90 °-50 °=40 °, then from closing the output torque Tb of trend when opening does
Tb＝(F·l/cos
250°)·η＝2.42·F·e·η
Output torque increases by 21%.
But, from valve open trend when closing, output torque Tc does
Tc＝(F·e/cos
240°)·η＝1.70·F·e·η
Output torque reduces 15%.This is the characteristic of that kind of representing with thick broken broken line shown in Figure 7.
If adopt such operation equipment,, can't tackle compacter and require the present situation of high output torque then in valve today of heavy caliber, high-pressure trend more.
Summary of the invention
The present invention makes in view of the above problems, and its purpose is to provide a kind of operation equipment, as the necessary moment of torsion of the spinning movement of valve rod, under the state near the closed condition of valve, can access high moment of torsion.
Be used to realize the operation equipment of the object of the invention, have: Scotland yoke that is fixedly mounted on the rotatingshaft and swings; Be fastened on this Scotland yoke and carry out straight-line transmission piece with freely the mode of sliding; For making the chimeric rotary threaded axle that is arranged on the said transmission piece of this transmission piece straight line motion; Be installed on the end of this rotary threaded axle, be used for granting the rotating driving device of rotation, it is characterized in that to said rotary threaded axle,
Said Scotland yoke has from said rotatingshaft and stretches out and two strands arm of the said transmission piece of clamping; Rail bar portion with the Rack that is oppositely arranged in two inboards of this arm; And; Said transmission piece is had pushing portion by the two end part of the length direction of the bi-side of said two strands arm clamping, and this pushing portion is provided with the mode that is connected to accordingly in the said rail bar portion with required turning radius of said Scotland yoke and pendulum angle.
In addition; In the aforesaid operations device, said Scotland yoke passes the action axis of length direction of said rail bar portion of the central axis of said rotatingshaft and can in the predetermined angular scope, swing; And; The vibration center of the said pushing portion on the two end part of said transmission piece is provided with the mode that is positioned on the axis consistent location with said rotary threaded axle, is connected in the said rail bar portion, and the said rotatingshaft of said Scotland yoke is installed on the valve rod of said valve.
In said Scotland yoke in the aforesaid operations device; The mode that said arm is located with respect to the width direction pushing portion side of deflection of said rail bar portion with the action axis of the length direction of the axis that passes said rotatingshaft of said rail bar portion; Be installed on the said rotatingshaft; The turning radius at the swing terminal through said Scotland yoke that extends can make the moment of torsion through the effect of said transmission piece increase.
The pushing portion of the said transmission piece in the aforesaid operations device; Make with the butt position of the said rail bar portion of said Scotland yoke apart from the axle center of said rotatingshaft only away from predetermined distance, said butt position be positioned at compare with the axis of said rotary threaded axle away from the position on.
Said transmission piece in the aforesaid operations device forms rectangular shape; Said pushing portion isolates on the face of swing of two arms that are arranged on the said Scotland yoke on the said transmission piece, and the part that contact with said rail bar portion at least of said pushing portion forms the shape of being with fillet.
Said transmission piece in the aforesaid operations device has pilot hole; The embedding hole of this pilot hole and chimeric said rotating screw axle is provided with abreast; This pilot hole is compared the rotatingshaft side that is positioned at said Scotland yoke with said rotating screw axle, and two ends are set is installed in the guide rod on the operation equipment shell with connecting.
The said guide rod that running through in the aforesaid operations device is located in the pilot hole on the said transmission piece has than the big diameter of axle of said rotary threaded axle, can alleviate the load of said rotary threaded axle and reduces the diameter of axle of said rotary threaded axle.
The driving source of the said rotating driving device in the aforesaid operations device is made up of the structure that is used for manual handle, electric motor, air motor or makes up above-mentioned these means.
Operation equipment of the present invention has: Scotland yoke that is fixedly mounted on the rotatingshaft and swings; Be fastened on this Scotland yoke and carry out straight-line transmission piece with freely the mode of sliding; For making the chimeric rotary threaded axle that is arranged on the said transmission piece of this transmission piece straight line motion; Be installed on the end of this rotary threaded axle, be used for granting reciprocating rotating driving device to said rotary threaded axle, wherein,
Said Scotland yoke has from said rotatingshaft and stretches out and two strands arm of the said transmission piece of clamping; Rail bar portion with the Rack that is oppositely arranged in two inboards of this arm; And said transmission piece is had pushing portion by the two end part of the axial direction of the bi-side of said two strands arm clamping, and this pushing portion is provided with the mode that is connected in the said rail bar portion; Therefore
Rotary manipulation through rotating driving device makes the action of rotary threaded axle, the rotary threaded axle chimeric transmission piece move on its axial direction because of the rotation of rotary threaded axle, have with Scotland yoke of two strands arm of the rail bar portion that is located at the pushing portion butt on the two end part of transmitting piece and swing because of transmitting moving of piece; The rotatingshaft of fixing two strands arm rotation on center of rotation; The chimeric valve rod that is fixed on the valve on this rotatingshaft rotates, and can carry out the switching of valve, at this moment; Although the rotary manipulation based on rotating driving device is constant; Even the action of the turning radius of Scotland yoke closes to an end, also can obtain to be applied to the output torque that Scotland yoke applies that passes through on the rotatingshaft fully, therefore; Can access high moment of torsion; Simple structure also can have high tenacity with the rail bar portion of arm one, can tackle the purposes that has above-mentioned needs.
In the aforesaid operations device; Said Scotland yoke; Passing the approximate centre line of said rail bar portion of the axis of said rotatingshaft can swing in the predetermined angular scope; And said rotatingshaft is installed on the valve rod of said valve, therefore with the mode in the said pushing portion at the two end part that are connected to said transmission piece in the swing terminal of said transmission piece, said rail bar portion; Two strands arm of Scotland yoke with transmit the rail bar portion that piece is oppositely arranged and be provided with to insert the mode of transmitting piece; Can make in the pushing portion of the transmission piece that the rail bar portion with Scotland yoke that is connected to reliably of the rail bar portion that transmits piece is provided with accordingly, and this rail bar portion is moved, the rotatingshaft of the slewing area of regulation be rotated in the terminal near also can obtain reliably.
In addition; Said Scotland yoke of aforesaid operations device; The mode of locating with respect to the width direction abutting part side of deflection of said rail bar portion with the action axis of the axis that passes said rotatingshaft of said rail bar portion is installed on the said rotatingshaft; Therefore, be that the turning radius at center obtains prolonging the turning radius of the swing end of said Scotland yoke that extends with rotatingshaft with respect to the rail bar portion of Scotland yoke of the pushing portion that transmits piece; The moment of torsion that moves on the rotatingshaft that produces, that act on Scotland yoke through said transmission piece is increased, required moment of torsion increase in the time of can making the switching of valve.
The pushing portion of the said transmission piece in the aforesaid operations device; Make with the butt position of the said rail bar portion of said Scotland yoke apart from the axle center of said rotatingshaft only away from predetermined distance; Said butt position be positioned at compare with the axis of said rotary threaded axle away from the position on; Therefore; The butt position of the rail bar portion of Scotland yoke and the pushing portion that transmits piece to be locating the mode of the turning radius lengthening of Scotland yoke, produces based on the mobile moment of torsion of rotation section that makes of the pushing portion of rail bar portion biglyyer, and the more situation of powerful rotation torque when needing valve to open and close also can be tackled.
In addition; Said transmission piece in the aforesaid operations device forms rectangular shape; Said pushing portion isolates on the face of swing of two arms that are arranged on the said Scotland yoke on the said transmission piece, and the part that contact with said rail bar portion at least of said pushing portion forms the shape of being with fillet, therefore; Contacting between the rail bar portion of pushing portion and Scotland yoke not only can be carried out reliably, the action at place, end can also be swung swimmingly.
In addition, the said transmission piece in the aforesaid operations device has pilot hole, and this pilot hole is provided with the interior threaded hole that said rotating screw axle is screwed in abreast; This pilot hole is compared the rotatingshaft side that is positioned at said Scotland yoke with said rotating screw axle; And two ends are set is installed in the guide rod on the operation equipment shell with connecting, and therefore, the pushing portion that transmits piece locatees apart from rotatingshaft more far away; It is big that the turning radius of Scotland yoke becomes, and can produce bigger moment of torsion.
In addition; The said guide rod that running through in the aforesaid operations device is located in the pilot hole on the said transmission piece has than the big diameter of axle of said rotary threaded axle; Can alleviate the load of said rotary threaded axle and reduce the diameter of axle of said rotary threaded axle, therefore, can further reduce deflection based on the rotary threaded axle that moves that transmits piece; The diameter of axle of rotary threaded axle can be further reduced, and bigger moment of torsion can be produced.
The driving source of the said rotating driving device in the aforesaid operations device can be made up of the structure that is used for manual handle, electric motor, air motor or makes up above-mentioned these means; Therefore; Not only can be based on manually-operable; Can also be through operation equipment being operated in that electric power, the pressure air that the place can obtain is set, and, if these combination of drive means are provided with; Can realize manual and electronic or aerodynamic switching with shirtsleeve operation according to the desirability of output torque.
About novel characteristics of the present invention and structure, effect, can further understand through the accompanying drawing that is associated with following explanation.In addition, in the accompanying drawing, identical accompanying drawing table and represent identical component parts.
Description of drawings
Fig. 1 is the phantom of the operation equipment of expression an embodiment of the invention.
Fig. 2 is that the part of operation equipment of the present invention shown in Figure 1 is blocked plan view.
Fig. 3 is the stereogram of Scotland yoke of using in the operation equipment of an embodiment of the invention shown in Figure 1.
Fig. 4 is the stereogram of the transmission piece that uses in the operation equipment of an embodiment of the invention.
Fig. 5 is the action specification figure of the operation equipment of an embodiment of the invention.
Fig. 6 is the action specification figure of the operation equipment of other mode of executions of the present invention.
Fig. 7 is switching and the ball valve itself of expression ball valve and the line chart that is created in the relation of the moment of torsion on the operation equipment.
Fig. 8 is the sectional view of the operation equipment of the existing use gear on worm of expression.
Fig. 9 is the sectional view of the operation equipment of existing use Scotland yoke.
Figure 10 is the stereogram of Scotland yoke of using in the operation equipment shown in Figure 9.
Figure 11 is the stereogram of the transmission piece that is combined in the enterprising enforcement usefulness of Scotland yoke of operation equipment shown in Figure 10.
Figure 12 is Scotland yoke and the action specification figure that transmits piece in the moral operation equipment shown in Figure 9.
The explanation of reference character
1 Scotland yoke
2 transmit piece
3 rotary threaded axles
4 handles
5 worm screws
6 worm gears
7 transmit the piece guiding element
8 shells
9 valve rods
10 guide rods
11 adjustment bolts
12 rotatingshafts
14 arms
16 arms
18 valve rod embedding holes
20 rotatingshaft central axis
22 transmit the piece main body
24 pushing portions
24 ' cylindrical part
26 pushing portions
26 ' cylindrical part
28 internal thread embedding holes
29 pilot holes
30 rotary threaded axis
100 operation equipment
142 rail bar portions
142 ' rail bar portion action axis
143 cylindrical part sliding-grooves
162 rail bar portions
163 cylindrical part sliding-grooves
300 valves
Embodiment
Below, be used for the mode of execution of embodiment of the present invention with reference to description of drawings.
Referring to figs. 1 through Fig. 7, the operation equipment 100 that is used for the mode of execution of embodiment of the present invention has: Scotland yoke 1, and it has embedding hole 18, these embedding hole 18 chimeric valve rods 9 and valve rod 9 is fixing through the key means of fixation; Transmit piece 2,14,16 pairs on two strands arm through this Scotland yoke 1 transmits piece 2 and carries out clamping; Rotary threaded axle 3, its embedding hole chimeric and that screw-in is located on this transmission piece 2 is in the interior threaded hole 28; Rotating driving device is a handle 4, and it is installed on the end of this rotary threaded axle 3; Shell 8, it takes in above-mentioned parts.
Be used to make the operation equipment 100 of the ball valve action that is located on the pipeline etc.; Has Scotland yoke 1 on the valve rod 9 that is installed in such valve; This Scotland yoke 1 is as shown in Figure 3, has: rotatingshaft 12, the embedding hole 18 that it has chimeric valve rod 9 and through the key means of fixation valve rod 9 is fixed; Two strands arm 14,16; Its mode of transmitting piece 2 with clamping devices spaced apart on the axial direction be installed on this rotatingshaft 12; In the inboard of these arms 14,16, rail bar portion 142,162 forms setting with mode and the arm 14,16 that has free end and have a full intensity.
The transmission piece 2 that makes up with such Scotland yoke 1; As shown in Figure 4; On the transmission piece main body 22 of rectangular shape; On the two end part of the long side direction of an one of which major opposing side, correspondingly isolate the pushing portion 24,24 that is used for carrying out butt that is provided with the rail bar portion 142,162 of Scotland yoke 1 with the pendulum angle of Scotland yoke 1; On another major opposing side that transmits piece main body 22, isolate the pushing portion 26,26 that is provided with equally in the longitudinal direction.Transmitting on the piece main body 22; Also be provided with interior threaded hole 28; This interior threaded hole is provided with the internal thread that supplies rotary threaded axle 3 to screw in 28 quarters, and setting is offered and connected near this interior threaded hole 28 mode roughly consistent with the vibration center position of pushing portion 24,26 with central shaft or that be positioned at it.In addition, transmitting on the piece main body 22,, connect abreast with interior threaded hole 28 and to be provided with pilot hole 29 in a side away from pushing portion 24,26.
Above-mentioned Scotland yoke 1 is processed by the sufficient steel of intensity with transmission piece 2; As Fig. 1 and shown in Figure 2 position and make up, with respect to Scotland yoke 1 that is assembled in the shell 8, rotary threaded axle 3 screws in and inserts and leads in interior threaded hole 28; And guide rod 10 can be inserted and lead in pilot hole 29.These rotary threaded axles 3, guide rod 10 are inserted and are led in transmitting piece 2, the two end part of rotary threaded axle 3 are bearing on the shell 8 with the mode bearing that can rotate, and the two end part of guide rod 10 are fixedly installed on the shell 8.At this moment, the guide rod 10 that transmits piece 2 is fixedly mounted on the shell 8 with the mode of rotatingshaft 12 sides that are positioned at Scotland yoke 1.Can at pilot hole 29 that transmits piece 2 and a plurality of positions between the guide rod 10, being two positions that are represented by dotted lines in the illustrated embodiment, be provided with the guide rod bearing with respect to transmit the mode that piece 2 slides freely on guide rod 10.
For making 1 action of Scotland yoke, on the end that projects to the outside from shell 8 of rotary threaded axle 3, the handle 8 as rotating driving device is installed.As handle 8, under the situation of manually operated type,, can be the wheel ring-type as long as can operate, also can be crank-like.In addition, in order to make processing ease can also be to use the electrodynamic type of the power source that can obtain or the rotating driving device of air motor formula.In addition, can also be with manually operated type and DYN dynamic combination of drive means, thus can optionally operate.
Below, according to action specification figure shown in Figure 5 Scotland yoke 1 of above-mentioned that kind being described with the action of transmitting piece 2, Fig. 5 is corresponding with the size that position shown in Figure 12 concerns.
If like Fig. 3 and shown in Figure 5, the width of rail bar portion 142,162 of inboard that order relatively is formed on two arms 14,16 of Scotland yoke 1 is W, then passes through the calculating according to Fig. 5, and output torque is described below.Pass rail bar portion 142,162 central authorities rotatingshaft 12 center 30 action axis 142 ', 162 ' be positioned at the position of W/2; If likewise set angle of oscillation θ ° with existing example shown in Figure 12, then be connected to the transmission piece 2 under the situation in the rail bar portion 142,162 pushing portion 24,26 vibration center and pass the angle θ between the line at center 30 of rotatingshaft 12
1Be θ
1＞θ, the output torque T of this moment
TBe described below.
T
T＝(F·e/cos
2θ
1)·η
At this, making W/2 be equivalent to as angle under 5 ° the situation,
T
T＝(F·e/cos
2θ
1)·η＝2.42·F·e·η
That is, under this situation, transmit the vibration center position of the pushing portion 24,26 of piece 2, the vibration center position of the arm 14,16 of Scotland yoke 1 is not 45 ° of existing pendulum angle apart from the position of oscillation center, but is equivalent to 50 °.In addition, relative therewith, the swing end position of the opposition side of the swing of yoke 1 in Scotland is with the output torque T of above-mentioned situation
TLikewise derive output torque T
X, therefore, identical ground with existing example, pendulum angle θ is 40 °, T
X=1.7Fe η.Therefore, the output torque T at the action end positions place of Scotland yoke 1
T, T
XRatio be T
T/ T
X=2.42/1.7=1.42 under state shown in Figure 5, compares with opposition side, and output torque is realized 42% increase.If it is represented with line chart, then can draw among Fig. 7 with such output torque shown in wide dotted line or the slightly broken broken line.The situation when closing like valve, in need be when the opening valve high output torque, this situation is effective.
In addition; As shown in Figure 6; For the rail bar portion 142,162 that makes Scotland yoke 1 with respect to the abutment of the pushing portion 24,26 that transmits piece 2 further away from each other; Increase the swing turning radius of Scotland yoke 1, the vibration center position that makes pushing portion 24,26 is constant apart from e apart from the oscillation center 20 of Scotland yoke 1 of the central axis 30 of rotary threaded axle 3, further pushing portion 24,26 is set to be positioned at only to leave apart from the mode of the position of f transmitting on the piece 2.
And; Make the position of the vibration center that transmits the pushing portion 24,26 on the piece 2 be positioned at from the oscillation center 20 of yoke 1 apart from Scotland apart from e further only away from the position of f; And two end positions of the swing of Scotland yoke 1 are with the switching of valve; If with the action axis 142 in the rail bar portion 142,162 ' become 0.6W, make rail bar portion 142,162 with respect to pushing portion 24,26 butts opening side in the mode of closing side and becoming 0.4W; Then, can obtain high output torque not only with respect to the situation of existing example shown in Figure 12 but also with respect to mode of execution shown in Figure 5 of the present invention, pendulum radius 12 is elongated.
Utilize above-mentioned formula to represent the output torque that this is actual, then be described below.
At this; The vibration center line 142 of Scotland yoke 1 '; In mode of execution shown in Figure 6, be equivalent to 45 ° apart from the angle θ in swing neutral position, but if to be connected to the angle θ apart from the swing neutral position of vibration center under the state in the pushing portion 24,26 in rail bar portion 142,162
2The mode that is 53 °, 52 ° is to the action axis 142 of rail bar portion 142,162 ' set, then
Close the output torque T of side
T1Be (full cut-off → open direction)
T
T1＝(F·e/cos
253°)·η＝2.76·F·e·η
Open the output torque T of side
X1Be (standard-sized sheet → closing direction)
T
X1＝(F·e/cos
252°)·η＝2.64·F·e·η
In Fig. 7, with line chart output torque T is represented as 0 ° pendulum angle θ with the side of closing of valve, then shown in thick single-point line, in addition, open side shown in circular lines.This situation; Even be respectively with respect to the neutral position at the center that makes arm 14,16 under 45 ° the situation; Scotland yoke 1 with respect to existing mode; In the process of full cut-off → open, can access 2.76 times output torque, in the process of standard-sized sheet → close, can access 2.64 times output torque.
Like this; In the operation equipment 100 of mode of execution shown in Figure 6; Through rotating force F based on rotary threaded axle 3, transmit piece 2 and produce this output torque T of output torque T through 2 generations of transmission piece, not only compare with existing example; And with mode of execution of the present invention shown in Figure 5 in the output torque that obtains compare, also can access high output torque.
As stated; Be located at the rail bar portion 142,162 of inboard of the arm 14,16 of Scotland yoke 1; Action axis 142 through making this rail bar portion 142,162 ' the be positioned at either side of width W direction; Be positioned at valve and open or close the one-sided of side, can make the swaying direction displacement, can make the distance at center 20 of rotatingshaft 12 of butt position yoke 1 of rail bar portion 142,162 and pushing portion 24,26 longer far from Scotland according to designing requirement.Thus, can carry out the adjusting of output torque T as required.In addition, compare, can not change scale ground and obtain high output torque with existing operation equipment, therefore big even the valve that will be provided with becomes, compactness that also can implement device.
As stated, operation equipment of the present invention obviously is not limited to above-mentioned mode of execution, implements in the technical scope that can in claims, put down in writing.
Claims (8)
1. an operation equipment has: Scotland yoke that is fixedly mounted on the rotatingshaft and swings; Be fastened on this Scotland yoke and carry out straight-line transmission piece with freely the mode of sliding; For making the chimeric rotary threaded axle that is arranged on the said transmission piece of this transmission piece straight line motion; Be installed on the end of this rotary threaded axle, be used for granting the rotating driving device of rotation, it is characterized in that to said rotary threaded axle,
Said Scotland yoke has from said rotatingshaft and stretches out and two strands arm of the said transmission piece of clamping; Rail bar portion with the Rack that is oppositely arranged in two inboards of this arm; And; Said transmission piece is had pushing portion by the two end part of the length direction of the bi-side of said two strands arm clamping, and this pushing portion is provided with the mode that is connected to accordingly in the said rail bar portion with required turning radius of said Scotland yoke and pendulum angle.
2. operation equipment as claimed in claim 1; It is characterized in that said Scotland yoke passes the action axis of length direction of said rail bar portion of the central axis of said rotatingshaft and can in the predetermined angular scope, swing; And; The vibration center of the said pushing portion on the two end part of said transmission piece is provided with the mode that is positioned on the axis consistent location with said rotary threaded axle, is connected in the said rail bar portion, and the said rotatingshaft of said Scotland yoke is installed on the valve rod of said valve.
3. operation equipment as claimed in claim 1; It is characterized in that; In the yoke of said Scotland, the mode that said arm is located with respect to the width direction pushing portion side of deflection of said rail bar portion with the action axis of the length direction of the axis that passes said rotatingshaft of said rail bar portion is installed on the said rotatingshaft; The turning radius at the swing terminal through said Scotland yoke that extends can make the moment of torsion through the effect of said transmission piece increase.
4. operation equipment as claimed in claim 3; It is characterized in that; The pushing portion of said transmission piece; Make with the butt position of the said rail bar portion of said Scotland yoke apart from the axle center of said rotatingshaft only away from predetermined distance, said butt position be positioned at compare with the axis of said rotary threaded axle away from the position on.
5. operation equipment as claimed in claim 1; It is characterized in that; Said transmission piece forms rectangular shape; Said pushing portion isolates on the face of swing of two arms that are arranged on the said Scotland yoke on the said transmission piece, and the part that contact with said rail bar portion at least of said pushing portion forms the shape of being with fillet.
6. operation equipment as claimed in claim 1; It is characterized in that; Said transmission piece has pilot hole; The embedding hole of this pilot hole and chimeric said rotating screw axle is provided with abreast, and this pilot hole is compared the rotatingshaft side that is positioned at said Scotland yoke with said rotating screw axle, and two ends are set is installed in the guide rod on the operation equipment shell with connecting.
7. operation equipment as claimed in claim 6; It is characterized in that; The said guide rod that runs through in the pilot hole that is located on the said transmission piece has than the big diameter of axle of said rotary threaded axle, can alleviate the load of said rotary threaded axle and reduces the diameter of axle of said rotary threaded axle.
8. operation equipment as claimed in claim 1 is characterized in that, is made up of the driving source of said rotating driving device the structure that is used for manual handle, electric motor, air motor or makes up above-mentioned these means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102871013A CN102401176A (en) | 2010-09-15 | 2010-09-15 | Operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102871013A CN102401176A (en) | 2010-09-15 | 2010-09-15 | Operating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401176A true CN102401176A (en) | 2012-04-04 |
Family
ID=45883665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102871013A Pending CN102401176A (en) | 2010-09-15 | 2010-09-15 | Operating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620044A (en) * | 2011-01-31 | 2012-08-01 | 株式会社蒂克斯Iks | Valve operating device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3104592A (en) * | 1961-10-19 | 1963-09-24 | John M Sheesley | Center bar actuator |
| CN2130994Y (en) * | 1992-07-06 | 1993-04-28 | 孟庆塘 | Driving device for opening or closing ball valve or butterfly valve |
| JPH08277958A (en) * | 1995-03-31 | 1996-10-22 | Kitz Corp | Scotch yoke type actuator |
| JPH0989150A (en) * | 1995-09-21 | 1997-03-31 | Kitz Corp | Valve driving device |
| JPH1038136A (en) * | 1996-07-19 | 1998-02-13 | Hitachi Valve Kk | Reduction operating device for valve |
| JP2000028008A (en) * | 1998-07-08 | 2000-01-25 | Kubota Corp | Double shaft rotating device by one operating shaft |
| CN101303092A (en) * | 2007-04-19 | 2008-11-12 | 株式会社蒂克斯 | Hand operation device of fluid pressure drive apparatus |
-
2010
- 2010-09-15 CN CN2010102871013A patent/CN102401176A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3104592A (en) * | 1961-10-19 | 1963-09-24 | John M Sheesley | Center bar actuator |
| CN2130994Y (en) * | 1992-07-06 | 1993-04-28 | 孟庆塘 | Driving device for opening or closing ball valve or butterfly valve |
| JPH08277958A (en) * | 1995-03-31 | 1996-10-22 | Kitz Corp | Scotch yoke type actuator |
| JPH0989150A (en) * | 1995-09-21 | 1997-03-31 | Kitz Corp | Valve driving device |
| JPH1038136A (en) * | 1996-07-19 | 1998-02-13 | Hitachi Valve Kk | Reduction operating device for valve |
| JP2000028008A (en) * | 1998-07-08 | 2000-01-25 | Kubota Corp | Double shaft rotating device by one operating shaft |
| CN101303092A (en) * | 2007-04-19 | 2008-11-12 | 株式会社蒂克斯 | Hand operation device of fluid pressure drive apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620044A (en) * | 2011-01-31 | 2012-08-01 | 株式会社蒂克斯Iks | Valve operating device |
| CN102620044B (en) * | 2011-01-31 | 2015-04-08 | 株式会社蒂克斯Iks | Valve operating device |
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| PB01 | Publication | ||
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Application publication date: 20120404 |