CN213004353U

CN213004353U - Grinding device for sealing surface of stop valve

Info

Publication number: CN213004353U
Application number: CN202021786702.4U
Authority: CN
Inventors: 王国圈; 周路云; 刘重阳; 朱旭晨; 张蒲根; 刘书宏; 曹爱松
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-20
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a sealed face grinder of stop valve, a serial communication port, including the abrasive disc, the abrasive disc is connected with the one end of curved bar, and the other end of curved bar passes the location apron and is connected with the rocker, and the location apron is fixed in on the port of stop valve. The grinding sheet is rotated by the crank rod and rocker structure to move relatively on the sealing surface of the stop valve, so that the grinding sheet grinds the sealing surface. The utility model discloses a positioning action of location apron guarantees at the grinding process, can not take place eccentric wear phenomenon. The grinding agent is introduced through the grinding agent introduction hole on the grinding sheet, the defects on the sealing surface are ground under the action of the grinding agent, and simultaneously, the grinding agent forms an oxide film on the surface to be processed through grease in the grinding process through chemical action, so that the grinding process can be accelerated, and the grinding efficiency is improved.

Description

Grinding device for sealing surface of stop valve

Technical Field

The utility model relates to a sealed face grinder of stop valve belongs to valve technical field.

Background

The stop valve is in long-term use, and the sealed face of disk seat can take place wearing and tearing, defects such as indentation, mar, corrosion appear, cause the leakproofness to reduce, can lead to the medium to leak when serious. The repair of the sealing surfaces is an important task, and the main method of repair is grinding.

The general grinding tool is easy to cause eccentric wear in the grinding process, the tightness of a sealing surface cannot be guaranteed, a large amount of time and energy must be spent to complete the work in order to achieve the purpose of preventing the eccentric wear, but the time for repairing the work is often urgent. In order to work conveniently and strive for more economic benefits for enterprises, a grinding device with reliable effect and higher efficiency is adopted to repair the sealing surface.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: provided is a grinding device for a sealing surface of a stop valve.

In order to solve the technical problem, the utility model provides a sealed face grinder of stop valve, a serial communication port, including the abrasive disc, the abrasive disc is connected with the one end of curved bar, and the other end of curved bar passes the location apron and is connected with the rocker, and the location apron is fixed in on the port of stop valve. The grinding sheet is rotated by the crank rod and rocker structure to move relatively on the sealing surface of the stop valve, so that the grinding sheet grinds the sealing surface.

Preferably, the upper and lower both sides of abrasive sheet are equipped with upper nut, lower nut that is used for spacing abrasive sheet respectively, and upper nut, lower nut pass through threaded connection with the curved bar.

Preferably, one end of the curved rod penetrates through the center of the grinding sheet. The grinding piece is ensured to grind along the center of the sealing surface, and eccentric wear cannot be caused.

Preferably, the edge of the polishing sheet is provided with a plurality of abrasive introduction grooves through which the abrasive flows to the polishing surface.

More preferably, four abrasive introduction grooves are uniformly distributed along the circumference of the edge of the grinding sheet.

Preferably, the positioning cover plate is fixedly connected with the stop valve through four bolts.

The utility model discloses a positioning action of location apron guarantees at the grinding process, can not take place eccentric wear phenomenon. The grinding agent is introduced through the grinding agent introduction hole on the grinding sheet, the defects on the sealing surface are ground under the action of the grinding agent, and simultaneously, the grinding agent forms an oxide film on the surface to be processed through grease in the grinding process through chemical action, so that the grinding process can be accelerated, and the grinding efficiency is improved.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model can ensure that the grinding process is not eccentric through the positioning cover plate;

2. the positioning hole on the positioning cover plate can be positioned with the bolt hole on the valve;

3. the grinding agent guide groove is formed in the grinding sheet, so that the grinding agent can flow in conveniently, and the grinding effect can be better guaranteed.

Drawings

FIG. 1 is a schematic structural view of a grinding device for a sealing surface of a stop valve according to the present invention;

FIG. 2 is a schematic view of a polishing pad;

fig. 3 is a schematic structural view of the positioning cover plate.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Examples

As shown in figures 1-3, for the utility model provides a stop valve sealing surface grinder, its characterized in that includes abrasive disc 2-6, and abrasive disc 2-6 is connected with the one end of curved bar 2-4, and the other end of curved bar 2-4 passes location apron 2-3 and is connected with rocker 2-2, and location apron 2-3 is fixed in on the port of stop valve 1-1. The upper and lower sides of the grinding sheet 2-6 are respectively provided with an upper nut 2-5 and a lower nut 2-7 for limiting the grinding sheet 2-6, and the upper nut 2-5 and the lower nut 2-7 are connected with the curved rod 2-4 through threads. One end of the curved rod 2-4 penetrates through the center of the grinding sheet 2-6. Four grinding agent leading-in grooves 2-6-1 are uniformly distributed on the edge of the grinding sheet 2-6 along the circumference. The positioning cover plate 2-3 is fixedly connected with the stop valve 1-1 through four bolts 2-1.

The positioning cover plate 2-3 is a circular nylon cover plate, four positioning holes are machined along the circumference, and a guide hole is machined in the center of the positioning cover plate. One end of the curved bar 2-4 is provided with a hole, and the other end is provided with a thread. The rocker 2-2 is inserted in a hole at the end of the curved rod 2-4. The grinding sheet 2-6 is a metal grinding sheet, the center of which is provided with a guide hole, and the bent rod 2-4 connects the grinding sheet 2-6 with the positioning cover plate 2-3. Four abrasive introduction grooves 2-6-1 penetrating the wall thickness in the circumference of the abrasive sheet 2-6 for introducing the abrasive into the seal face.

The utility model discloses an installation and use as follows:

connecting a rocker 2-2 to a curved rod 2-4, penetrating the curved rod 2-4 through a central guide hole of a positioning cover plate 2-3, connecting a grinding sheet 2-6 with the curved rod 2-4 through an upper nut 2-5 and a lower nut 2-7, and locking the upper nut 2-5 and the lower nut 2-7. Placing the connected grinding sheet 2-6 into the sealing surface of the stop valve 1-1, placing grinding agent into the grinding agent leading-in groove 2-6-1, and respectively positioning and connecting four positioning holes of the positioning cover plate 2-3 with bolt holes on the port of the stop valve 1-1, so that the installation and preparation work of the grinding device is finished; and the rocker 2-2 is rotated to control a certain speed, so that the sealing surface of the stop valve is efficiently ground and repaired.

Claims

1. A grinding device for a sealing surface of a stop valve is characterized by comprising a grinding sheet (2-6), wherein the grinding sheet (2-6) is connected with one end of a curved rod (2-4), the other end of the curved rod (2-4) penetrates through a positioning cover plate (2-3) to be connected with a rocker (2-2), and the positioning cover plate (2-3) is fixed on a port of the stop valve (1-1).

2. The stop valve sealing surface grinding device according to claim 1, wherein the upper and lower sides of the grinding sheet (2-6) are respectively provided with an upper nut (2-5) and a lower nut (2-7) for limiting the grinding sheet (2-6), and the upper nut (2-5) and the lower nut (2-7) are connected with the curved rod (2-4) through threads.

3. A grinding device for sealing surfaces of shut-off valves according to claim 1, characterized in that one end of the curved rod (2-4) is inserted through the center of the grinding plate (2-6).

4. The grinding device for sealing surfaces of shut-off valves according to claim 1, wherein the edge of the grinding plate (2-6) is provided with a plurality of grinding agent introduction grooves (2-6-1).

5. The grinding device for sealing surfaces of shut-off valves according to claim 4, wherein the edge of the grinding plate (2-6) is provided with four grinding agent introduction grooves (2-6-1) uniformly distributed along the circumference.

6. The stop valve sealing surface grinding device according to claim 1, characterized in that the positioning cover plate (2-3) is fixedly connected with the stop valve (1-1) through four bolts (2-1).