CN109958790A - A kind of ball valve - Google Patents
A kind of ball valve Download PDFInfo
- Publication number
- CN109958790A CN109958790A CN201711419589.9A CN201711419589A CN109958790A CN 109958790 A CN109958790 A CN 109958790A CN 201711419589 A CN201711419589 A CN 201711419589A CN 109958790 A CN109958790 A CN 109958790A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- gear
- rolling member
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention provides a kind of ball valve, including valve body, valve body cover board, spool and valve rod assembly, spool includes insert body, spool cover board, gear-driven assembly and flap, and valve rod assembly includes valve rod and valve rod gear, and spool cover board is between valve body cover board and insert body；Valve rod gear is set between spool cover board and insert body, and the valve rod gear is engaged with the gear-driven assembly；Valve body cover board is equipped with the first groove, and valve rod gear is equipped with the second groove, and spool cover board is equipped with through-hole, is provided with spherical rolling member in through-hole, and the spherical rolling member can move in the through-hole, has first state and the second state；In the first state, the valve rod rotation can drive the insert body to rotate；In second state, the valve rod rotation is able to drive the valve rod gear rotation, to drive the gear-driven assembly to drive the flap mobile.The reliability of torque transmitting can be promoted in this way.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of ball valves.
Background technique
With continuously improving for the rapid development of valve gate technology and production technology and product structure, ball valve is rapid
Develop into a kind of main valve class, and be widely used in petroleum refining, long-distance transport pipes, chemical industry, pharmacy, water conservancy, city have stable political situation steel
Etc. industries.Especially forced sealing ball valve, forced sealing ball valve currently on the market, due to its outstanding sealing performance,
It is widely used in the higher application scenarios of sealing requirements.
During retrieving to forced sealing ball valve, retrieving application publication number is CN105927750A and Shen
It please number Chinese patent for being 201610355492.5.The technical solution of the patent mainly uses torque spring to realize that valve rod drives
Spherical valve core make 90 degree rotation, and after spherical valve core is rotated by 90 ° by limit constrain stop operating after；Make torque spring into one
Step compression realizes that valve rod further transmits torque to valve rod gear, thus driving pinion, and then stud gear is driven, and pass through
Flap and the constraint of stud gear spiral jack up flap, and make the obvolvent of flap and valve seat, the final forced seal realized to ball valve
Operation control.
However, during driving spherical valve core rotation using torque spring, especially after ball valve is in the closed position,
It needs further to compress torque spring, so that valve rod band ovable valve stem gear rotates；When ball valve is through being repeatedly turned on or off operation
Afterwards, it is easy to make the torque reliability decrease of torque spring, and then influences the performance of ball valve.
As it can be seen that existing ball valve has that torque reliability is lower.
Summary of the invention
The embodiment of the present invention provides a kind of ball valve, and to solve the problems, such as existing ball valve, there are torque reliability is lower.
The embodiment of the invention provides a kind of ball valves, comprising:
Valve body, the valve body is interior to be equipped with accommodating cavity；
The valve body cover board being fixed on the valve body；
Spool is set in the accommodating cavity, the spool include the insert body that can be rotated in the accommodating cavity,
The gear-driven assembly being set on the insert body and the valve that can be moved back and forth under gear-driven assembly driving
Valve, is fixedly connected with spool cover board on the insert body, and the spool cover board is located at the valve body cover board and the spool
Between ontology；
And valve rod assembly, the valve rod assembly include valve rod and valve rod gear, the valve rod gear is set to the valve
Between core cover plate and the insert body, and the valve rod gear is engaged with the gear-driven assembly, one end of the valve rod
It connect to form driving cooperation with the valve rod gear；
The first groove is wherein equipped on the valve body cover board, the valve rod gear is equipped with the second groove, in the valve
Core cover plate is equipped with through-hole, is provided with spherical rolling member in the through-hole, and the spherical rolling member can be in the through-hole
It is mobile, and there is first state and the second state；
It is located in the through-hole in a part of the first state, the spherical rolling member, another part is located at described
In second groove, so that the insert body and the valve rod gear lock, the valve rod rotation is able to drive the valve rod tooth
Wheel rotation, to drive the insert body to rotate；
It is located in the through-hole in a part of second state, the spherical rolling member, another part is located at described
In first groove, so that the insert body and the valve body cover board lock, the valve rod rotation is able to drive the valve rod tooth
Wheel rotation, to drive the gear-driven assembly to drive the flap mobile.
Optionally, the spherical rolling member is hard ball.
Optionally, the diameter of the spherical rolling member is greater than the depth of the through-hole.
Optionally, the diameter of the spherical rolling member is greater than the depth of first groove or the depth of second groove
Degree, and the diameter of the spherical rolling member is less than or equal to the depth of first groove and the through-hole and described spherical
The diameter of rolling member be less than or equal to second groove and the through-hole depth and.
Optionally, the quantity of the spherical rolling member is two.
Optionally, first groove is the hemispherical groove being adapted to the spherical rolling member.
Optionally, second groove is the hemispherical groove being adapted to the spherical rolling member.
Optionally, the through-hole is the through-hole being adapted to the spherical rolling member.
Optionally, the ball valve includes side-mounted ball valve, and the valve body cover board includes pivotal support plate, the pivotal support
Plate is equipped with first groove.
Optionally, the pivotal support plate is between the spool cover board and the valve body.
In embodiments of the present invention, by using rigidly connected drive form, compared with the existing technology in torsion bullet
Spring structure can not only overcome the problems, such as using fault-tolerant low existing for torque spring structure；Moreover, when ball valve reaches closed position
Afterwards, due to the torque without the further compression torque spring of consumption, the closing for driving flap to realize forced seal can also be reduced
Torque so that ball valve be turned on or off operation it is simpler and more practical.Moreover, rolling mobile spy according to spherical rolling member
Point realizes the movement of spherical rolling member, the locking and cartridge cover of Lai Shixian spool cover board and valve body cover board using rolling friction
The locking of plate and valve rod gear can greatly reduce frictional resistance of the spherical rolling member in moving process in this way, reduce ball valve and exist
Abrasion in the course of work, and reduce makes the operation of ball valve more smooth reliable due to operating trouble caused by rubbing.This sample
Inventive embodiments transmit torque by rigid structure, relative to using torque spring to transmit torque, can effectively promote torque biography
The reliability passed.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the perspective view of the explosion of ball valve provided in an embodiment of the present invention；
Fig. 2 is one of the structural schematic diagram of ball valve provided in an embodiment of the present invention；
Fig. 3 is the second structural representation of ball valve provided in an embodiment of the present invention；
Fig. 4 is the third structural representation of ball valve provided in an embodiment of the present invention；
Fig. 5 is the partial enlarged view of a-quadrant in Fig. 4；
Fig. 6 is the perspective view of the explosion of spool provided in an embodiment of the present invention；
Fig. 7 is the perspective view of the explosion of side-mounted ball valve provided in an embodiment of the present invention；
Fig. 8 is one of the structural schematic diagram of side-mounted ball valve provided in an embodiment of the present invention；
Fig. 9 is the second structural representation of side-mounted ball valve provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figures 1 to 6, the embodiment of the present invention provides a kind of ball valve, comprising:
Valve body 110, the valve body 110 is interior to be equipped with accommodating cavity 111；
The valve body cover board 120 being fixed on the valve body 110；
Spool 130 is set in the accommodating cavity 111, and the spool 130 includes that can turn in the accommodating cavity 111
Dynamic insert body 131, the gear-driven assembly 132 being set on the insert body 131 and can be in the gear drive
The lower flap 133 moved back and forth of the driving of component 132, is fixedly connected with a spool cover board 134, institute on the insert body 131
Spool cover board 134 is stated between the valve body cover board 120 and the insert body 131；
And valve rod assembly 140, the valve rod assembly 140 include valve rod 141 and valve rod gear 142, the valve rod gear
142 are set between the spool cover board 134 and the insert body 131, and the valve rod gear 142 and the gear drive
Component 132 engages, and one end of the valve rod 141 is connected to the valve rod gear 142, and the other end passes through the spool cover board 134
With the valve body cover board 120；
Wherein, the first groove 121 is equipped on the valve body cover board 120, the valve rod gear 142 is equipped with the second groove
1421, it is equipped with through-hole 1341 on the spool cover board 134, is provided with spherical rolling member 150 in the through-hole 1341, and described
Spherical rolling member 150 can move in the through-hole 1341, and have first state and the second state；
It is located in the through-hole 1341 in a part of the first state, the spherical rolling member 150, another part position
In in second groove 1421, so that the insert body 131 and the valve rod gear 142 lock, 141 turns of the valve rod
It is dynamic, it is able to drive the valve rod gear 142 and rotates, to drive the insert body 131 to rotate；
It is located in the through-hole 1341 in a part of second state, the spherical rolling member 150, another part position
In in first groove 121, so that the insert body 131 and the valve body cover board 120 lock, the valve rod 141 is rotated,
It is able to drive the valve rod gear 142 to rotate, to drive the gear-driven assembly 132 to drive the flap 133 mobile.
In the embodiment of the present invention, the valve body 110 further includes the inlet and outlet being connected to the accommodating cavity 111, in order to
The sealing performance for further promoting ball valve, can also be arranged on the valve body 110 and be used for and the matched valve seat of the flap 133
112, and the valve seat 112 has the performances such as high intensity, high-wearing feature, to guarantee that the valve seat 112 is embraced with the flap 133
Sealing effect during conjunction.
The working principle of the embodiment of the present invention is, in the first state, i.e., the described spherical rolling member 150 is located at described logical
When in hole 1341 and second groove 1421, the spherical rolling member 150 is by the insert body 131 and the valve rod gear
142 lock together, i.e., when the valve rod gear 142 rotates, the insert body 131 can follow the valve rod gear 142 1
Neat rotation, the insert body 131 is equipped with medium channel, so that the opening and closing of ball valve can be realized.
In second state, i.e., the described spherical rolling member 150 is located in the through-hole 1341 and first groove 121
When, the spherical rolling member 150 locks together the insert body 131 and the valve body cover board 120.Due to the valve body
Cover board 120 is fixed on the valve body 110, therefore when the insert body 131 and the valve body cover board 120 pass through the ball
After shape rolling member 150 locks together, the insert body 131 can not be further continued for rotating, and work as and continue to drive the valve rod tooth
When 142 rotation of wheel, the valve rod gear 142 can drive the gear-driven assembly 132 to drive the flap 133 mobile, thus
It realizes 112 obvolvent of valve seat of the flap 133 and the valve body 110, or the flap 133 is tightened in the insert body
On 131.
Wherein, the valve body cover board 120, the spool cover board 134 and the valve rod gear 142 stacking are set to the ball
On valve, in the rotation process of the spool 130, the through-hole 1341 can be with first groove 121 and the second groove 1421
At least one of coaxial arrangement.
In the course of work of the ball valve, when the part of the spherical rolling member 150 is located at second groove 1421
When interior, the valve body cover board 120 limits the spherical rolling member 150 towards the valve towards the end face of the spool cover board 134
Body cover board 120 rolls, to make the spool cover board 134 lock together with the valve rod gear 142, due to spool cover board
134 are fixedly connected with insert body 131, therefore the insert body 131 is locked together with the valve rod gear 142, and can
Make being rotated by the valve rod 141 of insert body 131.
When the insert body 131 rotates to off-position, due to the position limiting structure of the switch position setting in the ball valve, meeting
The insert body 131 is limited to continue to rotate, at this time first groove 121 and the through-hole 1341 and with second groove
1421 alignment.
If the valve rod 141 continues the influence by external forces, the valve rod gear 142 is driven to continue to pass valve side
To rotation, the inner wall that the spherical rolling member 150 will receive second groove 1421 is applied to the spherical rolling member 150
One thrust, since the contact surface of the spherical rolling member 150 and second groove 1421 is spherical surface, first thrust
The active force including direction of rotation and the work along the through-hole 1341 axially away from 1421 direction of the second groove can be resolved into
Firmly, and the active force along the through-hole 1341 axially away from 1421 direction of the second groove will push the spherical rolling member
150 is mobile towards first groove 121, since the spherical rolling member 150 is spherical, the spherical rolling member 150
It is mobile towards first groove 121 in the form of rolling.
And works as the spherical rolling member 150 and completely disengage second groove 1421, and be located at the through-hole 1341 and institute
When stating in the first groove 121, the insert body 131 is locked in one with the valve body cover board 120 by the spherical rolling member 150
It rises, the insert body 131 is no longer rotated with the valve rod gear 142.If continuing that the valve rod 141 is driven to drive the valve rod
Gear 142 is rotated to closing direction, and the valve rod gear 142 continues to rotate the relatively described insert body 131, and described in driving
The direction that gear-driven assembly 132 drives the flap 133 to be directed away from the insert body 131 is mobile, by the flap 133
It jacks up, realizes 112 obvolvent of valve seat of the flap 133 and the valve body 110, realize the forced seal of the ball valve.
When the ball valve is turned to open position from off-position, the spherical rolling member 150 still by the insert body 131 with
The valve body cover board 120 locks together, and rotates the valve rod 141 to valve opening position, the valve rod gear 142 is driven to rotate,
The valve rod gear 142 will rotate relative to insert body 131 and drive the flap 133 towards close to the insert body 131
Direction is mobile, and the flap 133 is gradually tightened on the insert body 131, and when the tightening completely of flap 133 exists
When on the insert body 131, second groove 1421 is aligned with the through-hole 1341 and with first groove 121.
Since the flap 133 can not be tightened further on the insert body 131, if continuing to drive the valve rod tooth
Wheel 142 is rotated to valve opening position, and the insert body 131 will be rotated with valve rod 141 to valve opening position, the spherical rolling
Therefore part 150 can be applied to 150 second thrust of spherical rolling member by the inner wall of first groove 121, due to described
The contact surface of spherical rolling member 150 and first groove 121 is spherical surface, therefore second thrust can be resolved into including rotation
The active force in direction and along the through-hole 1341 axially away from the active force in 121 direction of the first groove, and along the through-hole
1341 axially away from the active force in 121 direction of the first groove, to will push the spherical rolling member 150 recessed towards described second
Slot 1421 is mobile, since the spherical rolling member 150 is spherical, the spherical direction in the form of rolling of rolling member 150
Second groove 1421 is mobile, until spherical rolling member 150 completely disengages first groove 121, and is located at the through-hole
1341 and second groove 1421 in.
Continue to drive the valve rod 141 that the valve rod gear 142 is driven to rotate to valve opening position, the valve rod gear 142
The insert body 131 will be driven to rotate, until the ball valve is shown in a fully open operation.
In this way, in embodiments of the present invention, by using rigidly connected drive form, compared with the existing technology in torsion
Power spring structure can not only overcome the problems, such as using fault-tolerant low existing for torque spring structure；Moreover, when ball valve reaches closing
Behind position, due to further compressing the torque of torque spring without consumption, it can also reduce and flap is driven to realize forced seal
Closing torque so that ball valve be turned on or off operation it is simpler and more practical.Moreover, transmitting torque, phase by rigid structure
For using torque spring to transmit torque, the reliability of torque transmitting can also be effectively promoted.
It should be noted that the spherical rolling member 150 provided in the embodiment of the present invention can be hard ball, wherein hard
The material of ball can be bearing steel, can also be that ceramic material is made.And the material selection of the spherical rolling member 150 with it is described
The application scenarios of ball valve are related.
Moreover, the spherical rolling member 150 in the embodiment of the present invention, can also be substituted with shuttle-type pin, the shuttle-type pin includes
Shuttle-type pin ontology and first end and the second end set on the shuttle-type pin ontology both ends, the first end and described second
End can realize that the Force decomposition for applying the valve rod gear is axial at the active force and the through-hole for including direction of rotation
The active force in direction, and the ball valve is made to realize the forced seal of the ball valve under positive drive.Wherein, the first end
It include truncated cone-shaped end, conical end and prismatic table shape end etc. with the second end.
However, use the shuttle-type pin in latched position switching for slide handover in the course of work of the ball valve,
And using the spherical rolling member 150 is to roll movement when latched position switches, and utilizes spherical rolling described in scrolling realization
The movement of part 150 can greatly reduce the spherical rolling member 150 in the frictional resistance of moving process, reduce ball valve and work
Abrasion in the process, and reduce due to operating trouble caused by rubbing.And pass through the pressure using ball valve described in scrolling realization
Sealing can make the operating process of the ball valve more smooth reliable.
It should be further noted that reversing the stability of transmitting further to promote the ball valve during the work time
And reliability, following improvement can also be done to the ball valve:
For example, the diameter of the spherical rolling member 150 can be greater than the depth of the through-hole 1341, such a ball
Shape rolling member 150 can realize the function of above-mentioned ball valve.As shown in Figure 4 and Figure 5, work as the straight of the spherical rolling member 150
When diameter is less than the depth of the through-hole 1341, then two or more described spherical rolling members 150 can be set, however to guarantee
The Stability and dependability of entire transmission process, the quantity of the spherical rolling member 150 are usually no more than 2.
Wherein, when the quantity for the spherical rolling member 150 being set in the through-hole 1341 is one, the spherical rolling member
150 diameter is greater than the depth of first groove 121 or the depth of second groove 1421；And the spherical rolling member
150 diameter is less than or equal to the depth and the spherical rolling member 150 of first groove 121 and the through-hole 1341
Diameter be less than or equal to second groove 1421 and the through-hole 1341 depth and.
Wherein, the stationarity in moving process, first groove 121 are being rolled for the guarantee spherical rolling member 150
It may be configured as the hemispherical groove being adapted to the spherical rolling member 150；Second groove 1421 may be configured as and the ball
The hemispherical groove that shape rolling member 150 is adapted to；The through-hole 1341 may be configured as being adapted to the spherical rolling member 150 logical
Hole.
Optionally, the valve rod 141 is driven for convenience, it can be on the valve rod 141 far from the valve rod gear 142
Keyway is arranged in one end, and the valve rod 141 can be driven to rotate by the actuator being adapted to the keyway；It can also be in the key
Setting and the valve rod key for detecting and being adapted in slot, and can by the actuator that is adapted to the valve rod 141 equipped with the valve rod key,
The valve rod 141 is driven to rotate.Wherein, the actuator can be handwheel, and being also possible to spanner or power actuator etc. can drive
Move the component that the valve rod 141 rotates.
In the specific embodiment of the embodiment of the present invention, the valve body cover board 120 can be fixed by bolted connection
On the valve body 110, as shown in Figure 1, the valve body 110 can be fixed on the valve body cover board 120 by the first bolt 171
On；Wherein, the quantity of the first bolt 171 is preferably 6, can make the company of the valve body cover board 120 and the valve body 110 in this way
It connects more firm.
The spool cover board 134 can also be fixed on by bolted connection on the insert body 131, such as Fig. 1
It is shown, the spool cover board 134 can be fixed on the insert body 131 by the second bolt 172；Wherein, the second bolt
172 quantity is preferably 8, can make the connection of the spool cover board 134 and the insert body 131 more firm in this way.
The ball valve further includes valve rod upper cover 122, and the valve rod upper cover 122 is for protecting valve rod 141, the valve rod upper cover
122 can be fixed on by bolted connection on the valve body cover board 120；Specifically, can will be described by third bolt 173
Valve rod upper cover 122 is fixed on the valve body cover board 120.Wherein, the third bolt 173 is preferably 4.
The actuator can be handwheel 160, and the handwheel 160 can be keyed with the valve rod 141 by valve rod
Together.Moreover, user manipulates handwheel 160 for convenience, handle can also be set on handwheel 160；In order to preferably will be described
Handwheel 160 is fixed on the valve rod 141, the mode that can also be connected through a screw thread, and realizes the handwheel 160 and the valve rod
141 are fixedly connected.
As shown in fig. 6, the insert body 131 is equipped with the first rotation pivot 1311, the second rotation pivot 1312 and the
Three rotation pivots 1313；Preferably, first rotation pivot 1311 is set with second rotation pivot 1312 in 45 degree of angles
It sets, first rotation pivot 1311 is arranged with the third rotation pivot 1313 in 90 degree of angles.Wherein the second rotation pivot
1312 it is not necessary to, in other words, only there are two angle be 90 degree a gear drive function of the invention also may be implemented,
But the second rotation axis 1312, which is added, can reduce the volume of entire valve ball.The gear-driven assembly 132 includes transmission gear
1321, stud gear 1322, roller 1323 and roller rolling retainer 1324.Wherein, the valve rod gear 142 is set in described first
On rotation pivot 1311, and it can be rotated around first rotation pivot 1311；The transmission gear 1321 is set in described second
On rotation pivot 1312, and it can be rotated around second rotation pivot 1312；The stud gear 1322 is set in the third
On rotation pivot 1313, and it can be rotated around the third rotation pivot 1313.Moreover, the valve rod gear 142 and the transmission
Gear 1321 engages, and the transmission gear 1321 is also engaged with the stud gear 1322, and forms pinion unit.
Gear gland 13211 can be set to the transmission gear 1321, gear pressure is set to the stud gear 1322
Ring 13221.
Stud gear 1322 includes gear and stud, and the gear and the stud are integrally formed, the tooth
It takes turns ontology and engages connection with the transmission gear 1321；The side of the flap 133 is spherical shape, is used for and the valve seat
112 docking, realize forced seal, and the other side of the flap 133 is equipped with threaded hole, and the screw thread of the stud and the screw thread
The form of thread in hole is identical, and screw pitch is equal.
In the present embodiment, the transmission of the flap 133, can be by being set between the stud and the threaded hole
Roller 1323 transmit, the roller 1323 also is provided with thread form annular groove identical with the screw thread of the stud, and the roller
The spacing of 1323 annular groove is identical as the flight pitch of the stud.Wherein, in the present embodiment, the quantity of roller 1323 is 8,
And the roller 1323 is spaced apart by roller rolling retainer 1324, and the roller 1323 engages the spiral shell of the stud simultaneously
The screw thread of line and the threaded hole.When the stud gear 1322 rotation, roller 1323 will be simultaneously with the stud rotation axis
Line revolution and autobiography, and be converted into the rotary motion of the stud gear 1322 flap 133 to be pushed to move back and forth straight
Line movement.Moreover, because the rotational motion of stud gear 1322 itself, is changed into rolling for the sliding friction cooperated between screw thread and rubs
It wipes, transmission efficiency can be promoted.
Moreover, flap 133 is equipped with prismatic column, the third rotation pivot 1313 is equipped with prismatic hole, passes through prismatic hole and rib
Constraint between shape column, flap 133, which can be constrained, to be rotated together with stud gear 1322, and wherein flap 133 can be with
It is constrained on the third rotation pivot 1313 in such a way that spline connects.In this way valve rod gear 142, transmission gear 1321,
Stud gear 1322 and flap 133 are formed together power train, when valve rod gear 142 rotate when, by drive flap 133 do jack-up or
The linear motion that person withdraws, to realize the obvolvent of flap 133 Yu valve seat 112, or by the tightening of flap 133 in insert body 131
On.
As shown in Figure 7 to 9, a kind of side-mounted ball valve provided in an embodiment of the present invention, including valve body 210, the first valve end
220, the second valve end 230, spool 240, valve rod assembly 250 and pivotal support plate 260, in which:
The valve body 210 is equipped with the accommodating cavity for accommodating the spool 240, first valve end 220 and described second
Valve end 230 respectively corresponds the both ends of medium channel and is fixedly connected with the valve body 210, it is preferred that can be bolted
Mode, realize being fixedly connected for first valve end 220 and second valve end 230 and the valve body 210；
The spool 240 includes insert body 241, the gear-driven assembly being symmetrically disposed on the insert body 241
242 and can under the gear-driven assembly 242 driving the flap 243 that move back and forth, it is fixed on the insert body 241 to connect
It is connected to a spool cover board 244, the spool cover board 244 is between the pivotal support plate 260 and the insert body 241；
The valve rod assembly 250 includes valve rod 251 and valve rod gear 252, and the valve rod gear 252 is set to the spool
Between cover board 244 and the insert body 241, and the valve rod gear 252 is engaged with the gear-driven assembly 242, described
One end connection and the valve rod gear 252 of valve rod 251, the other end pass through the spool cover board 244 and the pivotal support plate
260；
The pivotal support plate 260 between the spool cover board 244 and the valve body 210, and by fixed pin with
First valve end 220 is fixedly connected with the second valve end 230；
Wherein, the first groove 261 is equipped on the pivotal support plate 260, it is recessed that the valve rod gear 252 is equipped with second
Slot 2521 is equipped with through-hole 2441 on the spool cover board 244, is provided with spherical rolling member 270, and institute in the through-hole 2441
Stating spherical rolling member 270 can move in the through-hole 2441, and have first state and the second state；
It is located in the through-hole 2441 in a part of the first state, the spherical rolling member 270, another part position
In in second groove 2521, so that the insert body 241 and the valve rod gear 252 lock, 251 turns of the valve rod
It is dynamic, it is able to drive the valve rod gear 252 and rotates, to drive the insert body 241 to rotate；
It is located in the through-hole 2441 in a part of second state, the spherical rolling member 270, another part position
In in first groove 261, so that the insert body 241 and the pivotal support plate 260 lock, 251 turns of the valve rod
It is dynamic, it is able to drive the valve rod gear 252 and rotates, to drive the gear-driven assembly 242 to drive the flap 243 mobile.
In present embodiment, the pivotal support plate 260 is the upper pivotal support plate of side-mounted ball valve, and invents this implementation
The working principle for the side-mounted ball valve that example provides can reach phase as the working principle of ball valve provided by the above embodiment
Same effect, repeats no more again.
In this way, by the improvement of above structure, it can be realized and torque is transmitted by rigid structure, relative to using torsion bullet
Spring transmits torque, can effectively promote the reliability of torque transmitting.
It should be noted that in the embodiment of the present invention, mainly by taking roof-mounted valve body as an example, actually to the structure shape of valve body
Without limitation, valve body can be side-mounted, or different valve body structures such as full welded type to formula.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of ball valve characterized by comprising
Valve body, the valve body is interior to be equipped with accommodating cavity；
The valve body cover board being fixed on the valve body；
Spool is set in the accommodating cavity, and the spool includes the insert body that can be rotated in the accommodating cavity, setting
In on the insert body gear-driven assembly and can under the gear-driven assembly driving flap that move back and forth,
Be fixedly connected with spool cover board on the insert body, the spool cover board be located at the valve body cover board and the insert body it
Between；
And valve rod assembly, the valve rod assembly include valve rod and valve rod gear, the valve rod gear is set to the cartridge cover
Between plate and the insert body, and the valve rod gear is engaged with the gear-driven assembly, one end of the valve rod and institute
Valve rod gear is stated to connect to form driving cooperation；
The first groove is wherein equipped on the valve body cover board, the valve rod gear is equipped with the second groove, in the cartridge cover
Plate is equipped with through-hole, is provided with spherical rolling member in the through-hole, and the spherical rolling member can move in the through-hole,
And there is first state and the second state；
It is located in the through-hole in a part of the first state, the spherical rolling member, another part is located at described second
In groove, so that the insert body and the valve rod gear lock, the valve rod rotation is able to drive the valve rod gear and turns
It is dynamic, to drive the insert body to rotate；
It is located in the through-hole in a part of second state, the spherical rolling member, another part is located at described first
In groove, so that the insert body and the valve body cover board lock, the valve rod rotation is able to drive the valve rod gear and turns
It is dynamic, to drive the gear-driven assembly to drive the flap mobile.
2. ball valve according to claim 1, which is characterized in that the spherical rolling member is hard ball.
3. ball valve according to claim 1, which is characterized in that the diameter of the spherical rolling member is greater than the depth of the through-hole
Degree.
4. ball valve according to claim 3, which is characterized in that the diameter of the spherical rolling member is greater than first groove
Depth or second groove depth, and the diameter of the spherical rolling member is less than or equal to first groove and described
The depth of through-hole and the spherical rolling member diameter be less than or equal to second groove and the through-hole depth and.
5. ball valve according to claim 1, which is characterized in that the quantity of the spherical rolling member is two.
6. ball valve according to claim 1, which is characterized in that first groove is to be adapted to the spherical rolling member
Hemispherical groove.
7. ball valve according to claim 1, which is characterized in that second groove is to be adapted to the spherical rolling member
Hemispherical groove.
8. ball valve according to claim 1, which is characterized in that the through-hole be adapted to the spherical rolling member it is logical
Hole.
9. ball valve according to claim 1, which is characterized in that the ball valve includes side-mounted ball valve, the valve body cover board
Including pivotal support plate, the pivotal support plate is equipped with first groove.
10. ball valve according to claim 9, which is characterized in that the pivotal support plate is located at the spool cover board and institute
It states between valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711419589.9A CN109958790B (en) | 2017-12-25 | 2017-12-25 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711419589.9A CN109958790B (en) | 2017-12-25 | 2017-12-25 | Ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109958790A true CN109958790A (en) | 2019-07-02 |
| CN109958790B CN109958790B (en) | 2020-08-11 |
Family
ID=67020790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711419589.9A Active CN109958790B (en) | 2017-12-25 | 2017-12-25 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958790B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110089358A1 (en) * | 2005-10-11 | 2011-04-21 | Elkhart Brass Manufacturing Company, Inc. | Valve with actuation sub-assembly |
| CN202884094U (en) * | 2012-10-16 | 2013-04-17 | 重庆西美仪器仪表有限公司 | Friction-free ball valve based on gear transmission |
| CN204061983U (en) * | 2013-12-31 | 2014-12-31 | 郝思宏 | A kind of low moment of torsion fixes spherical ball valve without wearing and tearing forced seal |
| CN105927750A (en) * | 2016-05-26 | 2016-09-07 | 刘晓琦 | Forced seal ball valve |
| CN106949256A (en) * | 2017-04-11 | 2017-07-14 | 刘晓琦 | A kind of forced seal ball valve with lock device |
| CN107339461A (en) * | 2017-08-11 | 2017-11-10 | 刘晓琦 | It is a kind of to switch synchronous transfer device and its forced seal ball valve of formation |
-
2017
- 2017-12-25 CN CN201711419589.9A patent/CN109958790B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110089358A1 (en) * | 2005-10-11 | 2011-04-21 | Elkhart Brass Manufacturing Company, Inc. | Valve with actuation sub-assembly |
| CN202884094U (en) * | 2012-10-16 | 2013-04-17 | 重庆西美仪器仪表有限公司 | Friction-free ball valve based on gear transmission |
| CN204061983U (en) * | 2013-12-31 | 2014-12-31 | 郝思宏 | A kind of low moment of torsion fixes spherical ball valve without wearing and tearing forced seal |
| CN105927750A (en) * | 2016-05-26 | 2016-09-07 | 刘晓琦 | Forced seal ball valve |
| CN106949256A (en) * | 2017-04-11 | 2017-07-14 | 刘晓琦 | A kind of forced seal ball valve with lock device |
| CN107339461A (en) * | 2017-08-11 | 2017-11-10 | 刘晓琦 | It is a kind of to switch synchronous transfer device and its forced seal ball valve of formation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109958790B (en) | 2020-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10859169B2 (en) | Valve seat driven forced seal ball valve | |
| US9022352B2 (en) | Hard seal plug valve | |
| US9534693B2 (en) | Valve with a hinged valve core | |
| CN110242770B (en) | Three-way ball valve | |
| CN108278378B (en) | A kind of valve seat driving forced seal ball valve | |
| EP3800386B1 (en) | Planetary roller threaded device capable of being restored by means of holder | |
| CN105452725A (en) | Valve operator assembly with inverted roller screw | |
| CN107763240A (en) | A kind of forced seal ball valve | |
| CN111442110A (en) | Ball valve | |
| US10920893B2 (en) | Cage reset planetary roller screw device | |
| EP2960404B1 (en) | Lock and rotary plug thereof | |
| CN209761894U (en) | Power output apparatus and device | |
| CN109958790A (en) | A kind of ball valve | |
| CN111425618A (en) | Low-abrasion ball valve | |
| CN108980397B (en) | Double-locking-body transmission operating device | |
| CN105473920B (en) | Valve operator component with compensation actuator | |
| CN208331407U (en) | High pressure valve headstock gear and its high pressure valve | |
| CN207848470U (en) | A kind of forced seal ball valve | |
| CN103878730B (en) | There is the electric drill of torsion regulatory function | |
| RU2374527C1 (en) | Device for transformation of rotary motion into progressive (versions) | |
| CN109723858B (en) | Ball valve | |
| CN207437825U (en) | A kind of ball valve | |
| CN209278612U (en) | Valve actuator | |
| CN207261598U (en) | Low torque ball-screw with stopper | |
| CN113123694A (en) | Integrated limiting vehicle door hinge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |