CN217453331U

CN217453331U - Sealing surface grinding tool for valve core and valve seat in ball valve

Info

Publication number: CN217453331U
Application number: CN202121617527.0U
Authority: CN
Inventors: 付斌斌
Original assignee: Shaanxi Improvement Fluid Control Equipment Manufacturing Co ltd
Current assignee: Shaanxi Improvement Fluid Control Equipment Manufacturing Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-09-20
Anticipated expiration: 2031-07-16

Abstract

Provides a sealing surface grinding tool for a valve core and a valve seat in a ball valve, belongs to the technical field of ball valve processing, the utility model discloses a grinding frock that is used for fixing the ball valve disk seat and comprises grinding ring dish, eccentric rotary disk and other parts is made through fixing the ball valve disk at the drilling machine platform of drilling machine, and the drilling machine main shaft drives grinding ring dish eccentric rotation through eccentric rotary disk, and grinding ring dish drives ball valve disk seat eccentric rotation, makes ball valve disk seat and the corresponding sealed face rotary contact grinding of the ball valve disk seat that fixes on the drilling machine platform, finally forms sealed face, the utility model discloses a preparation through grinding frock makes ball valve disk seat and the sealed face grinding shaping of case realize directly on the drilling machine, replaces traditional artifical manual grinding, not only improves work efficiency greatly, and the grinding speed is controlled by the machine tool, so that the sealing surface of the grinding part is uniform, and the sealing performance is reliable.

Description

Sealing surface grinding tool for valve core and valve seat in ball valve

Technical Field

The utility model belongs to the technical field of the ball valve processing, concretely relates to sealed face grinding frock that is arranged in case and disk seat of ball valve.

Background

The ball valve sealing surface is the most critical part for shutting off the valve and regulating the valve, and the sealing surface is ensured not to generate leakage by virtue of good combination of the valve sealing surface, and the valve sealing surface cannot achieve good combination even by adopting precision machining. For the processing of the relative sealing surface between the valve seat and the valve core in the ball valve, the traditional process is as follows: the sealing surfaces of the valve seat and the valve core are combined in a sealing mode through relative grinding, during operation, the valve core of the ball valve needs to be fixed on a platform, an operator holds the valve seat of the ball valve by hand and rotates the valve seat of the ball valve manually, the valve seat and the valve core are in contact with each other and are ground through rotation to form the sealing surface, and due to the fact that manual physical strength is limited, long-time continuous construction cannot be conducted, and grinding efficiency is reduced; and the manual rotation grinding is uneven in stress, the grinding condition of the sealing surface of the valve core and the valve seat cannot be confirmed, and once the grinding inclination of the sealing surface occurs, the valve can be scrapped. There is therefore a need for improvements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the utility model provides a sealed face grinds frock that is arranged in ball valve case and disk seat, the utility model discloses cross the preparation of grinding the frock, make the sealed face grinding shaping of ball valve disk seat and case directly realize on the drilling machine, replace traditional artifical manual grinding, not only improve work efficiency greatly, through lathe control grinding speed moreover, make the sealed face of abrasive machining department even, sealing performance is reliable.

The utility model adopts the technical proposal that: the sealing surface grinding tool for the valve core and the valve seat in the ball valve comprises a grinding circular disc and an eccentric rotating disc, wherein a limiting step for limiting and fixing the valve seat of the ball valve is arranged in the lower end face of the grinding circular disc, and a grinding disc connecting rod is vertically and fixedly connected to the center of the upper part of the grinding circular disc; an eccentric disc connecting rod is vertically arranged in the center of the upper part of the eccentric rotating disc, the eccentric rotating disc is fixedly connected with a drilling machine spindle of a drilling machine through the eccentric disc connecting rod, an eccentric hole is formed in the eccentric rotating disc, and the eccentric hole is elastically sleeved on the grinding disc connecting rod; during the use, fix the ball valve case on the drilling machine platform of drilling machine, the drilling machine main shaft of drilling machine passes through the eccentric disc connecting rod and drives the rotation of eccentric rotary disk, eccentric rotary disk passes through the eccentric orfice and overlaps with the grinding disk connecting rod and drives the eccentric rotation of grinding ring dish, it drives the rotation of ball valve disk seat and makes the ball valve disk seat and the corresponding face contact rotation grinding of the ball valve case of fixing on the drilling machine platform form sealed face to grind the ring dish.

The technical scheme is further limited, a plurality of eccentric holes are formed in the eccentric rotating disk, and the plurality of eccentric holes are arranged on the eccentric rotating disk in a parabolic shape from near to far away from the center.

The grinding disc connecting rod is further limited, a spring limiting table is arranged on the grinding disc connecting rod, a spring is sleeved on the grinding disc connecting rod, the lower end of the spring is limited by the spring limiting table, and an eccentric hole of the eccentric rotating disc is sleeved on the upper portion of the grinding disc connecting rod and pressed on the spring.

Further inject above-mentioned technical scheme, grind ring dish upper portion fixedly connected with and connect the diaphragm, connect the diaphragm level setting and through grinding ring dish center, connect diaphragm both ends and the symmetrical both sides fixed connection of grinding ring dish, be equipped with the connecting block in the middle of connecting diaphragm upper portion, in the middle of the connecting block with abrasive disc connecting rod lower extreme fixed connection.

The technical scheme is further limited, and the drilling machine platform is provided with a valve core supporting seat for supporting a valve core of the ball valve.

The utility model has the advantages compared with the prior art:

1. according to the scheme, the ball valve core is fixed on a drilling machine platform of a drilling machine, the grinding tool which is used for fixing the ball valve seat and consists of a grinding circular disc, an eccentric rotating disc and the like is manufactured, a drilling machine spindle drives the grinding circular disc to eccentrically rotate through the eccentric rotating disc, the grinding circular disc drives the ball valve seat to eccentrically rotate, the ball valve seat and the ball valve core fixed on the drilling machine platform are correspondingly in rotary contact grinding with a sealing surface, and a sealing surface is finally formed;

2. in the scheme, the eccentric rotating disk is provided with the plurality of eccentric holes, the arrangement of the plurality of eccentric holes on the eccentric rotating disk is in a parabolic shape from near to far away from the center, the eccentric holes with different center distances can enable the eccentric rotating eccentric distances of the ball valve seat to be different, the width of a sealing surface generated between the ball valve seat and the ball valve core is different, the grinding disk connecting rod can be adjusted to be combined with different eccentric holes according to the required width of the sealing surface, and the practical range is enlarged;

3. the cover has the spring on the abrasive disc connecting rod in this scheme, supports the eccentric rotary disk of cover on the abrasive disc connecting rod through the spring to make eccentric rotary disk become the elastic transfer to the power of turning transmission of grinding the ring dish, make the grinding contact between ball valve disk seat and the ball valve case then become elastic contact, prevent effectively that the damage that touches hard and contact and lead to the fact sealed face in grinding process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the grinding ring disc shown in the direction A-A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the eccentric rotary disk of the present invention shown in the direction B of FIG. 1;

fig. 4 is the utility model discloses carry out the structure schematic diagram that grinds ball valve disk seat case with the drilling machine cooperation.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Referring to fig. 1-4, embodiments of the present invention are detailed.

The grinding tool for the sealing surfaces of the valve core and the valve seat in the ball valve comprises a grinding circular disc 1 and an eccentric rotating disc 7, wherein a limiting step 1-1 for limiting and fixing a ball valve seat 12 is arranged in the inner part of the lower end surface of the grinding circular disc 1, and a grinding disc connecting rod 4 is vertically and fixedly connected to the center of the upper part of the grinding circular disc 1; an eccentric disc connecting rod 8 is vertically arranged in the center of the upper portion of the eccentric rotating disc 7, the eccentric rotating disc 7 is fixedly connected with a drilling machine spindle 10 of a drilling machine 9 through the eccentric disc connecting rod 8, an eccentric hole 7-1 is formed in the eccentric rotating disc 7, and the eccentric hole 7-1 is elastically sleeved on the grinding disc connecting rod 4; during use, the ball valve core 13 is fixed on a drilling machine platform 11 of the drilling machine 9, a drilling machine spindle 10 of the drilling machine 9 drives an eccentric rotating disk 7 to rotate through an eccentric disk connecting rod 8, the eccentric rotating disk 7 is sleeved with a grinding disk connecting rod 4 through an eccentric hole 7-1 to drive a grinding circular disk 1 to eccentrically rotate, the grinding circular disk 1 drives a ball valve seat 12 to rotate, and the ball valve seat 12 and a corresponding surface of the ball valve core 13 fixed on the drilling machine platform 11 are in contact with each other and rotationally ground to form a sealing surface.

The utility model discloses an original process of work: as shown in fig. 4, through fixing ball valve core 13 at drilling machine platform 11 of drilling machine 9, the preparation is used for fixed ball valve disk seat 12 and by grinding ring dish 1, the grinding frock of parts such as eccentric rotary disk 7 constitution, fix ball valve disk seat 12 in grinding ring dish 1's spacing step 1-1, drilling machine main shaft 10 drives through eccentric rotary disk 7 and grinds ring dish 1 eccentric rotation, it drives ball valve disk seat 12 eccentric rotation to grind ring dish 1, make ball valve disk seat 12 correspond sealed face rotary contact with ball valve core 13 of fixing on drilling machine platform 11 and grind, finally form sealed face. The utility model discloses a preparation of grinding frock makes ball valve disk seat 12 and case 13's sealed face grind the shaping and directly realize on the drilling machine, replaces traditional artifical manual grinding, not only improves work efficiency greatly, and through machine tool control grinding speed, the sealed face that makes abrasive machining department is even moreover, and sealing performance is reliable.

Preferably, as shown in fig. 3, a plurality of eccentric holes 7-1 are formed in the eccentric rotating disk 7, and the plurality of eccentric holes 7-1 are arranged on the eccentric rotating disk 7 in a parabolic shape from near to far from the center. According to the design of the structure, the eccentric holes 7-1 with different center distances can enable the eccentric rotating eccentric distances of the ball valve seat 12 to be different, the width of a sealing surface generated between the ball valve seat 12 and the ball valve element 13 is different, the grinding disc connecting rod 4 can be adjusted to be combined with different eccentric holes according to the width required by the sealing surface, and the practical range is enlarged.

Preferably, as shown in fig. 2, grind 1 upper portion fixedly connected with of ring dish and connect diaphragm 2, connect diaphragm 2 level setting and through grinding ring dish 1 center, connect diaphragm 2 both ends and the symmetrical both sides department fixed connection of grinding ring dish 1, be equipped with connecting block 3 in the middle of connecting diaphragm 2 upper portion, in the middle of connecting block 3 with 4 lower extreme fixed connection of abrasive disc connecting rod. The connecting structure is simple, the manufacturing and the processing are convenient, and the production cost is reduced.

Preferably, the grinding disc connecting rod 4 is provided with a spring limiting table 5, the grinding disc connecting rod 4 is sleeved with a spring 6, the lower end of the spring 6 is limited by the spring limiting table 5, and an eccentric hole 7-1 of the eccentric rotating disc 7 is sleeved on the upper portion of the grinding disc connecting rod 4 and pressed on the spring 6. The department supports the eccentric rotating disk 7 sleeved on the grinding disk connecting rod 4 through the spring 6 by sleeving the spring 6 on the grinding disk connecting rod 4, so that the rotating force transmission from the eccentric rotating disk 7 to the grinding circular disk 1 becomes elastic transmission, then the grinding contact between the ball valve seat 12 and the ball valve core 13 becomes elastic contact, and the damage to a sealing surface caused by hard touch and hard contact in the grinding process is effectively prevented.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A sealed face grinds frock for case and disk seat in ball valve, its characterized in that: the ball valve seat grinding device comprises a grinding circular disc (1) and an eccentric rotating disc (7), wherein a limiting step (1-1) for limiting and fixing a ball valve seat (12) is arranged in the inner part of the lower end face of the grinding circular disc (1), and a grinding disc connecting rod (4) is vertically and fixedly connected to the center of the upper part of the grinding circular disc (1); an eccentric disc connecting rod (8) is vertically arranged in the center of the upper portion of the eccentric rotating disc (7), the eccentric rotating disc (7) is fixedly connected with a drilling machine spindle (10) of a drilling machine (9) through the eccentric disc connecting rod (8), an eccentric hole (7-1) is formed in the eccentric rotating disc (7), and the eccentric hole (7-1) is elastically sleeved on the grinding disc connecting rod (4); during the use, fix ball valve case (13) on drilling machine platform (11) of drilling machine (9), drilling machine main shaft (10) of drilling machine (9) drive eccentric rotary disk (7) through eccentric disc connecting rod (8) and rotate, eccentric rotary disk (7) are registrated with abrasive disc connecting rod (4) through eccentric orfice (7-1) and are driven and grind ring dish (1) eccentric rotation, grind ring dish (1) and drive ball valve disk seat (12) rotation and make ball valve disk seat (12) and fix ball valve case (13) on drilling machine platform (11) and correspond the face contact rotation grinding and form sealed face.

2. The grinding tool for the sealing surfaces of the valve core and the valve seat in the ball valve according to claim 1, characterized in that: the eccentric rotating disk (7) is provided with a plurality of eccentric holes (7-1), and the arrangement of the eccentric holes (7-1) on the eccentric rotating disk (7) is in a parabolic shape from near to far away from the center.

3. The seal surface grinding tool for the valve core and the valve seat in the ball valve according to claim 2, characterized in that: the grinding disc connecting rod (4) is provided with a spring limiting table (5), the grinding disc connecting rod (4) is sleeved with a spring (6), the lower end of the spring (6) is limited by the spring limiting table (5), and an eccentric hole (7-1) of an eccentric rotating disc (7) is sleeved on the upper portion of the grinding disc connecting rod (4) and pressed on the spring (6).

4. The grinding tool for the sealing surfaces of the valve core and the valve seat in the ball valve according to claim 1, characterized in that: grind ring dish (1) upper portion fixedly connected with and connect diaphragm (2), connect diaphragm (2) level setting and through grinding ring dish (1) center, connect diaphragm (2) both ends and grinding ring dish (1) symmetry both sides department fixed connection, be equipped with connecting block (3) in the middle of connecting diaphragm (2) upper portion, in the middle of connecting block (3) with abrasive disc connecting rod (4) lower extreme fixed connection.

5. The seal surface grinding tool for the valve core and the valve seat in the ball valve according to claim 1, characterized in that: and a valve core supporting seat (14) for supporting a valve core (13) of the ball valve is arranged on the drilling machine platform (11).