CN215673821U - Left valve body part of ball valve - Google Patents
Left valve body part of ball valve Download PDFInfo
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- CN215673821U CN215673821U CN202121443536.2U CN202121443536U CN215673821U CN 215673821 U CN215673821 U CN 215673821U CN 202121443536 U CN202121443536 U CN 202121443536U CN 215673821 U CN215673821 U CN 215673821U
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Abstract
The utility model relates to a left valve body part of a ball valve, which comprises a large flange (1), a small flange (2) and a channel (3); one end of the large flange (1) is connected with a pipeline, the other end of the large flange is connected with the small flange (2) through a channel (3), one end of the small flange (2) is connected with the right valve body, and the other end of the small flange is connected with the large flange (1); and the small flange (2) is provided with a sealing ring (23) corresponding to the position of the channel (3), the sealing ring (23) is abutted against a valve core of the ball valve, and the parts are processed by a numerical control method. Compared with the prior art, the utility model has the advantages of strong adaptability, good sealing performance, easy processing and the like.
Description
Technical Field
The utility model relates to the field of valve parts, in particular to a left valve body part of a ball valve.
Background
The ball valve is a valve whose opening and closing member (ball) is driven by valve rod and can be rotated around the axis of ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels.
The ball valve body is one of the main components of the ball valve, the ball valve is used as an opening and closing device in a pipeline, the opening and closing piece in the valve body is a ball body, the ball body is driven by a valve rod and rotates around the axis of the valve rod, and the ball valve is mainly used for cutting off or connecting media in a pipeline and can also be used for regulating and controlling fluid. In order to facilitate the assembly of the ball body and the maintenance of the ball valve, the ball valve body is usually in a splicing type.
At present, the ball valve body on the market, it includes left valve body and right valve body, left side valve body and right valve body all are equipped with the ring flange, be equipped with the through-hole that is used for wearing to establish the bolt on the ring flange, left side valve body and right valve body pass through bolted connection. Although this kind of ball valve body, simple and practical, through bolted connection, the fastening is good, but left valve body, the valve body that does not contain the case promptly, and always be the permanent hidden danger with the leakproofness of case, prior art often more cares about the sealed condition of case side top or side below, has ignored the sealed situation of case center with the flange face, leads to sealed situation still to be difficult to reach the optimal state.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a left valve body part of a ball valve, which has strong adaptability, good sealing performance and easy processing.
The purpose of the utility model can be realized by the following technical scheme:
a left valve body part of a ball valve comprises a large flange, a small flange and a channel;
one end of the large flange is connected with the pipeline, the other end of the large flange is connected with the small flange through a channel, one end of the small flange is connected with the right valve body, and the other end of the small flange is connected with the large flange;
and the small flange is provided with a sealing ring corresponding to the channel position, and the sealing ring is abutted against the valve core of the ball valve.
Furthermore, the sealing surface and the non-sealing surface of the valve core of the ball valve are both planes, and the sealing ring is made of rigid materials; the valve core is abutted against the inner edge of the sealing ring.
Further, the inner diameter of the sealing ring is larger than the diameter of the non-sealing surface.
In this case, as shown in fig. 4, the inner diameter of the cross section of the sealing ring is generally slightly larger than the outer diameter of the non-sealing surface, which means that the inner edge of the sealing ring is actually a spherical portion of the valve element, and thus the sealing function can be achieved.
Furthermore, the sealing surface of the valve core of the ball valve is a spherical surface, the non-sealing surface is a plane, and the sealing ring is made of flexible materials;
when the ball valve is closed, the valve core is abutted against the inner side surface of the sealing ring; when the ball valve is opened, the valve core is abutted against the section of the sealing ring.
Further, the inner diameter of the sealing ring is smaller than the diameter of the non-sealing surface.
As shown in FIG. 5, the non-sealing surface of the valve core of the ball valve is drilled and must be a plane, when the ball valve is opened, the non-sealing surface is abutted against the section of the sealing ring, and the inner diameter of the section of the sealing ring is generally slightly smaller than the outer diameter of the non-sealing surface, so that sealing can be completed; and when the ball valve closed gradually, because sealed face is a sphere, the extrusion effect of sphere can make the sealing ring swell, and sealed face turns to and seals ring medial surface butt, accomplishes sealedly. Therefore, the ball valve can be guaranteed to have good sealing performance at every moment.
Furthermore, the small flange is provided with a through hole corresponding to the channel position; the edge of the through hole is provided with an inner prismatic table;
when the ball valve is closed, the valve core is simultaneously abutted against the inner side surface of the sealing ring and the inner frustum.
Furthermore, a reinforcing mechanism is fixedly arranged between the channel of the ball valve and the large flange;
the reinforcing mechanism comprises a reinforcing sleeve wrapped outside the channel and a reinforcing ring fixedly connected with the large flange and the reinforcing sleeve.
The arrangement of the reinforcing mechanism can increase the connecting strength between the channel and the large flange,
furthermore, a plurality of large bolt holes required for being connected with a pipeline are formed in a large flange of the ball valve, and a plurality of small bolt holes required for being connected with the right valve body are formed in a small flange.
Further, the parts are of an integrally formed structure.
According to the numerical control machining method for the ball valve left valve body part, UG11.0 software is used for three-dimensional modeling, a feed path is designed, numerical control machining on a 3-axis turning and milling composite numerical control machine tool is simulated and simulated, and the numerical control machining method is carried out according to the following steps:
opening UG11.0 software, building a model for modeling, drawing a planar sketch, and obtaining a three-dimensional model through rotation characteristics;
making a two-dimensional engineering drawing, and marking process dimensions (including dimension tolerance marking, form and position tolerance marking, roughness marking and technical requirement marking) in detail;
formulating a technological specification and a machining process of the left valve body part;
the three-jaw chuck is used for clamping one end (set as the end B) firstly, turning the end A after machining, drilling and machining, turning the end A, clamping the other end (set as the end A), machining the end B, and only needing to disassemble and clamp once in the process of machining the left valve body part, so that machining errors are greatly reduced.
The method is carried out by three layers of rough machining, semi-finish machining and finish machining.
Compared with the prior art, the utility model has the following advantages:
(1) in the utility model, the sealing ring can be made of rigid material or flexible material according to the processing type, and the sealing property of the valve body can be ensured no matter what material is adopted;
(2) according to the utility model, when the sealing ring is made of flexible materials and the ball valve is gradually closed, the sealing ring is expanded under the extrusion action of the spherical surface, so that the ball valve is ensured to have good sealing performance at every moment;
(3) the numerical control machining mode is utilized, the problems that the machining size precision, the surface roughness, the coaxiality and the position degree of the valve body are high in requirement and the like in the machining production of the left valve body part are solved, the machining procedure is complex, the precision is affected by repeated assembly and disassembly, and meanwhile, the size precision of the left valve body part is improved;
(4) according to the numerical control machining process, by balancing the cutting load, the cutter abrasion is reduced, the precision of the left valve body part is improved, the error is reduced, the outer surface process is attractive, the turning and milling combined machining process analysis and the drilling feed condition have the advantages of simplicity and easiness in implementation, stable machining quality and simplification of the complicated programming problem in the machining process.
Drawings
FIG. 1 is a three-dimensional view of the left valve body component in embodiment 1;
FIG. 2 is a tool path diagram of the end A of the left valve body component in the embodiment 1;
FIG. 3 is a B-end tool path diagram of a left valve body part in embodiment 1;
FIG. 4 is a schematic view of a valve body in embodiment 1;
FIG. 5 is a schematic view of a valve body in embodiment 2;
the reference numbers in the figures indicate: the large flange 1, the large bolt hole 11, the small flange 2, the small bolt hole 21, the through hole 22, the inner ridge 221, the sealing ring 23, the sealing ring section 231, the sealing ring inner side surface 232, the channel 3, the reinforcing sleeve 31 and the reinforcing ring 32.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
Example 1
A left valve body part of a ball valve is shown in figure 1 and comprises a large flange 1, a small flange 2 and a channel 3; one end of the large flange 1 is connected with a pipeline, the other end of the large flange is connected with the small flange 2 through a channel 3, one end of the small flange 2 is connected with the right valve body, and the other end of the small flange is connected with the large flange 1; the small flange 2 is provided with a seal ring 23 corresponding to the position of the passage 3, and the seal ring 23 is abutted against the valve core of the ball valve.
A reinforcing mechanism is fixedly arranged between the channel 3 of the ball valve and the large flange 1; the reinforcing mechanism comprises a reinforcing sleeve 31 wrapped outside the channel 3 and a reinforcing ring 32 fixedly connected with the large flange 1 and the reinforcing sleeve 31. The strengthening mechanism can increase the connection strength between the channel 3 and the large flange 1, the large flange 1 of the ball valve is provided with a plurality of large bolt holes 11 required for being connected with a pipeline, and the small flange 2 is provided with a plurality of small bolt holes 21 required for being connected with the right valve body. The parts are of an integrally formed structure.
The sealing surface and the non-sealing surface of the valve core of the ball valve are both planes, and the sealing ring 23 is made of rigid material; the valve element abuts against the inner edge of the sealing ring 23. The inner diameter of the sealing ring 23 is larger than the diameter of the non-sealing surface. In this case, as shown in fig. 4, the inner diameter of the sealing ring section 231 is generally slightly larger than the outer diameter of the non-sealing surface, which means that the inner edge of the sealing ring 23 is actually a spherical portion of the valve body, and thus the sealing function can be achieved.
A numerical control machining method for the ball valve left valve body part comprises the following steps:
the left valve body is directly communicated with the pipeline, and a medium with certain pressure and temperature flows in the valve body. The flowing medium is cut off, adjusted, decompressed, throttled or the flowing direction of the medium is changed by opening and closing the valve core.
obtaining a pressure range by calculating the hydraulic pressure, and setting the size of the left valve body (including the size of a connecting threaded hole and the size of the outer contour of the left valve body)
step 4, formulating a process rule and a processing process of the valve body part, and making clear marks on the problems and details encountered in programming;
and 5, effectively using turning, milling and drilling to process the part according to the tool path requirement of the part by utilizing the advantage of three-axis linkage in the feeding process. During machining, only the turning and clamping are needed to be disassembled once, so that errors generated during machining by the traditional machining method are effectively avoided.
In this embodiment, the processing method includes the following steps:
designing cutter parameters (tooth number, diameter, spiral angle, front angle, rear angle, RC), processing parameters (cutting depth, feeding, rotating speed) and part information (material);
establishing a three-dimensional model of a part;
selecting proper turning tools and grooving tools;
designing a turning feed path;
changing a tool and designing a path of a slotting tool;
turning and clamping, and selecting proper tool path data;
designing turning tool path data;
and (5) changing the tool and drilling a through hole on the outer surface.
Simulation machining, aiming at improving the precision of the left valve body part and optimizing the cutter position track
clamping the end B: as shown in fig. 2, one end is clamped by a three-jaw chuck
Drilling hole on excircle
Deep, changing the lathe tool, the outer diameter of the lathe
The outer contour, the visible light setting coordinate Z of the turning plane is 0.0, and the excircle chamfer is turned by 1mm multiplied by 45 degrees.
Turning and clamping to analyze the tool path of the end B;
turning around and clamping the end A, as shown in figure 3, clamping the end A with a three-jaw chuck and turning
Outer circle, first outer diameter of car
Turning a chamfer of 1mm multiplied by 45 degrees, and the single side allowance is 0.3 mm. Changing, moving the knife inwards
Turning a chamfer angle of 1mm multiplied by 53 degrees, and the single edge allowance is 0.3 mm. Vehicle outside diameter
Outer contour, single margin 0.3 mm. Chamfering the inner part by 1mm and 30 degrees, and then turning the inner diameter
And changing the tool, and chamfering by 1mm multiplied by 53 degrees by the inner vehicle. Grooving cutter and grooving
The two side grooves are rounded off at R4 mm. And changing the turning tool and turning the inner diameter groove according to the track.
Step three, turning a plane;
roughly turning a plane until the length of the product is 78.3 mm. And finely turning the plane until the length of the product is 78 mm.
Step four, fine machining;
finish turning 1mm × 45 degree chamfer and outer diameter of vehicle
Then the taper of the outward turning is 45 degrees, the chamfer angle of 1mm multiplied by 45 degrees is turned, and the outer diameter of the car
The taper is 53 degrees. The outward turning taper is 45 degrees, and then the outer diameter of the car
Step five, drilling a through hole;
clamping the A end, and changing 4 pieces on the drilling plane of the drill bit
And a through hole.
Example 2
A left valve body part of a ball valve, referring to fig. 1, the part comprises a large flange 1, a small flange 2 and a channel 3; one end of the large flange 1 is connected with a pipeline, the other end of the large flange is connected with the small flange 2 through a channel 3, one end of the small flange 2 is connected with the right valve body, and the other end of the small flange is connected with the large flange 1; the small flange 2 is provided with a seal ring 23 corresponding to the position of the passage 3, and the seal ring 23 is abutted against the valve core of the ball valve.
A reinforcing mechanism is fixedly arranged between the channel 3 of the ball valve and the large flange 1; the reinforcing mechanism comprises a reinforcing sleeve 31 wrapped outside the channel 3 and a reinforcing ring 32 fixedly connected with the large flange 1 and the reinforcing sleeve 31. The strengthening mechanism can increase the connection strength between the channel 3 and the large flange 1, the large flange 1 of the ball valve is provided with a plurality of large bolt holes 11 required for being connected with a pipeline, and the small flange 2 is provided with a plurality of small bolt holes 21 required for being connected with the right valve body.
The sealing surface of the valve core of the ball valve is a spherical surface, the non-sealing surface is a plane, and the sealing ring 23 is made of flexible materials; when the ball valve is closed, the valve core is abutted against the inner side surface 232 of the sealing ring; when the ball valve is opened, the valve element abuts the seal ring section 231. The inner diameter of the sealing ring 23 is smaller than the diameter of the non-sealing surface. It is easy to understand that, as shown in fig. 5, the non-sealing surface of the valve core of the ball valve is a plane because of being drilled, when the ball valve is opened, the non-sealing surface abuts against the sealing ring section 231, and the inner diameter of the sealing ring section 231 is generally slightly smaller than the outer diameter of the non-sealing surface, so that sealing can be completed; when the ball valve is gradually closed, the sealing surface is a spherical surface, the sealing ring 23 is expanded under the extrusion action of the spherical surface, and the sealing surface is abutted against the inner side surface 232 of the sealing ring to complete sealing. Therefore, the ball valve can be guaranteed to have good sealing performance at every moment.
The small flange 2 is provided with a through hole 22 corresponding to the channel 3; the edge of the through hole 22 is provided with an inner prismatic table 221; when the ball valve is closed, the valve core is simultaneously abutted against the inner side surface 232 and the inner ridge 221 of the sealing ring.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. A left valve body part of a ball valve is characterized by comprising a large flange (1), a small flange (2) and a channel (3);
one end of the large flange (1) is connected with a pipeline, the other end of the large flange is connected with the small flange (2) through a channel (3), one end of the small flange (2) is connected with the right valve body, and the other end of the small flange is connected with the large flange (1);
and a sealing ring (23) corresponding to the channel (3) is arranged on the small flange (2), and the sealing ring (23) is abutted against a valve core of the ball valve.
2. A left valve body part of a ball valve according to claim 1, characterized in that the sealing surface and the non-sealing surface of the valve core of the ball valve are both flat surfaces, and the sealing ring (23) is made of rigid material; the valve core is abutted against the inner edge of the sealing ring (23).
3. A left body part of a ball valve according to claim 2, characterized in that the inner diameter of the sealing ring (23) is larger than the diameter of the non-sealing surface.
4. A left valve body part of a ball valve according to claim 1, characterized in that the sealing surface of the valve core of the ball valve is a spherical surface, the non-sealing surface is a plane surface, and the sealing ring (23) is made of flexible material;
when the ball valve is closed, the valve core is abutted against the inner side surface (232) of the sealing ring; when the ball valve is opened, the valve core is abutted with the sealing ring section (231).
5. A left body part of a ball valve according to claim 4, characterized in that the inner diameter of the sealing ring (23) is smaller than the diameter of the non-sealing surface.
6. A left valve body part of a ball valve according to claim 4, characterized in that the small flange (2) is provided with a through hole (22) corresponding to the position of the channel (3); the edge of the through hole (22) is provided with an inner prismatic table (221);
when the ball valve is closed, the valve core is simultaneously abutted with the inner side surface (232) of the sealing ring and the inner rib (221).
7. A left body part of a ball valve according to claim 1, characterized in that a reinforcing mechanism is fixed between the channel (3) and the large flange (1) of the ball valve.
8. A left body component of a ball valve according to claim 7, characterized in that the reinforcing means comprises a reinforcing sleeve (31) wrapped outside the channel (3) and a reinforcing ring (32) fixed to both the large flange (1) and the reinforcing sleeve (31).
9. A left body part of a ball valve according to claim 1, characterized in that the large flange (1) of the ball valve is provided with a plurality of large bolt holes (11) for connecting with a pipeline, and the small flange (2) is provided with a plurality of small bolt holes (21) for connecting with a right body.
10. A left body component of a ball valve as defined in claim 1 wherein the component is of unitary construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121443536.2U CN215673821U (en) | 2021-06-28 | 2021-06-28 | Left valve body part of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121443536.2U CN215673821U (en) | 2021-06-28 | 2021-06-28 | Left valve body part of ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN215673821U true CN215673821U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121443536.2U Active CN215673821U (en) | 2021-06-28 | 2021-06-28 | Left valve body part of ball valve |
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| CN (1) | CN215673821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324082A (en) * | 2021-06-28 | 2021-08-31 | 上海建桥学院有限责任公司 | Ball valve left valve body part and numerical control machining method thereof |
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2021
- 2021-06-28 CN CN202121443536.2U patent/CN215673821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324082A (en) * | 2021-06-28 | 2021-08-31 | 上海建桥学院有限责任公司 | Ball valve left valve body part and numerical control machining method thereof |
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