CN222806764U - A mechanical grinding tool for train control valve seal - Google Patents
A mechanical grinding tool for train control valve seal Download PDFInfo
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- CN222806764U CN222806764U CN202421456319.0U CN202421456319U CN222806764U CN 222806764 U CN222806764 U CN 222806764U CN 202421456319 U CN202421456319 U CN 202421456319U CN 222806764 U CN222806764 U CN 222806764U
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- grinding
- rotary valve
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- sealing plate
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Abstract
The utility model discloses a mechanical grinding tool for a train control valve sealing piece, which comprises a grinding star plate with a disc structure, wherein gears are arranged on the outer wall of the whole body of the grinding star plate, and a rotary valve placing through hole, a sealing plate placing through hole and a grinding fluid injection hole are arranged on the grinding star plate. When the grinding machine is used, the sealing plate is placed in the sealing plate placing through hole, and the grinding star is driven to rotate by means of gear transmission, so that the grinding star moves circularly around the main shaft of the grinding machine, friction is generated among the rotary valve, the sealing plate and the grinding disc, and automatic mechanical grinding is realized. In the whole process, no external force is applied to the rotary valve and the sealing plate, the pressure generated by the gravity action of the rotary valve and the sealing plate is only applied to the grinding surface of the grinding disc, the gravity action is balanced in size, the directions are consistent, and the grinding quality is good. Secondly, adopt hardness to be greater than the mill of rotary valve, closing plate, separately grind rotary valve, closing plate working face, solved closing plate and when rotary valve are lapping, the surface scratch is difficult to grind smooth problem.
Description
Technical Field
The utility model relates to a grinding tool, in particular to a mechanical grinding tool for a train control valve sealing element.
Background
The train control valve controls the flow direction of high-pressure air in a metal sealing mode, and realizes the conversion of manual position, closing position and opening position. The main sealing components of the operating valve are rotary valve and sealing plate. When the rotary valve and the sealing plate are overhauled, at present, most of the rotary valve and the sealing plate are manually processed, grinding agents are added between two different materials, and the rotary valve and the sealing plate are manually pressed for grinding, but the problems of uneven applied pressure and unstable grinding quality exist in manual lapping. Secondly, the hardness of two workpieces to be ground is inconsistent, scratches on the surfaces of the workpieces with larger hardness are difficult to grind and smooth, and high-pressure gas is easy to leak to other passages in the using process.
Disclosure of Invention
The utility model aims to provide a mechanical grinding tool for a train control valve sealing element. The rotary valve is used for solving the problems of uneven stress and unstable grinding quality when the rotary valve and the sealing plate are ground. And solves the problem that the surface scratch is difficult to grind and smooth when the sealing plate and the rotary valve are oppositely ground.
The mechanical grinding tool for the train control valve sealing piece comprises a grinding star plate with a disc structure, wherein gears are arranged on the outer wall of the whole body of the grinding star plate, and a rotary valve placing through hole, a sealing plate placing through hole and a grinding fluid injection hole are formed in the grinding star plate.
In the mechanical grinding tool for the train control valve sealing piece, the rotary valve placing through holes and the grinding fluid injection holes are respectively arranged in 2, and the 2 grinding fluid injection holes are arranged between the rotary valve placing through holes and the sealing plate placing through holes.
In the mechanical grinding tool for the train control valve sealing piece, the connecting lines of the circle centers of the 2 rotary valve placing through holes and the 1 sealing plate placing through holes form 1 isosceles triangle, and the 2 rotary valve placing through holes and the 2 grinding fluid injection holes are symmetrically arranged on two sides of the connecting line of the circle center of the sealing plate placing through hole and the circle center of the grinding star plate.
In the mechanical grinding tool for the train control valve sealing piece, the top and bottom surfaces of the grinding star plate are of counter bore structures, and the rotary valve placing through hole, the sealing plate placing through hole and the grinding fluid injection hole are all arranged in the range of the counter bore area.
In the mechanical grinding tool for the train control valve sealing element, the sum of the depths of the counter bores of the top surface and the bottom surface is larger than 1/2 of the thickness of the grinding star plate.
Compared with the prior art, the grinding star plate grinding machine has the advantages that the grinding star plate grinding machine is provided with the rotary valve placing through hole, the sealing plate placing through hole and the grinding liquid injection hole, the rotary valve to be ground is placed in the rotary valve placing through hole, the sealing plate is placed in the sealing plate placing through hole, and the grinding star plate is driven to rotate by means of gear transmission, so that the grinding star plate moves circularly around the main shaft of the grinding machine, friction is generated among the rotary valve, the sealing plate and the grinding disc under the grinding star plate, and automatic mechanical grinding is realized. In the whole process, no external force is applied to the rotary valve and the sealing plate, the pressure generated by the gravity action of the rotary valve and the sealing plate is only applied to the grinding surface of the grinding disc, the gravity action is balanced in size, the directions are consistent, and the grinding quality is good. Secondly, adopt hardness to be greater than the mill of rotary valve, closing plate, separately grind rotary valve, closing plate working face, solved closing plate and when rotary valve are lapping, the surface scratch is difficult to grind smooth problem.
The tool provided by the utility model is used for grinding a set of rotary valve and sealing plate, and the original 13 min/s (manual) of the rotary valve and sealing plate are reduced to 10 min/s (mechanical) at present, so that the working efficiency is improved. And the mechanical grinding stress is uniform, the grinding quality is stable, the problem of exceeding the standard of leakage caused by poor grinding is solved, and the once-through rate is increased from 58% to 81%. Furthermore, the labor intensity is reduced by mechanical grinding, the labor is replaced by mechanical grinding, and the physical strength is saved. The repairing quantity is reduced, the repairing and grinding frequency is reduced, and the working intensity of staff is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic side view of fig. 1.
Reference numeral 1-grinding star plate, 2-gear, 3-rotary valve placing through hole, 4-sealing plate placing through hole, 5-grinding fluid injection hole.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
The embodiment of the utility model relates to a mechanical grinding tool for a train control valve sealing element, which is shown in figures 1-2 and comprises a grinding star plate 1 with a disc structure, wherein a gear 2 is arranged on the outer wall of the whole body of the grinding star plate 1, and a rotary valve placing through hole 3, a sealing plate placing through hole 4 and a grinding fluid injection hole 5 are arranged on the grinding star plate 1.
In the use process of the utility model, aiming at the problem of uneven grinding force between the rotary valve and the sealing plate, the rotary valve and the sealing plate are not applied with external force, the rotary valve is respectively placed in the rotary valve placing through hole 3, the sealing plate is placed in the sealing plate placing through hole 4, and the grinding surface is acted by the pressure generated by the gravity action of the rotary valve and the sealing plate. In the whole grinding process, the gravity acts uniformly, the directions are consistent, and the grinding quality is good. Secondly, aiming at the problem that the sealing plate is hard to grind and smooth due to high hardness, a grinding disc with hardness larger than that of the rotary valve and the sealing plate is adopted to grind the working surfaces of the rotary valve and the sealing plate separately. The specific measures are as follows:
The grinding machine adopts a mechanical grinding mode to replace manual counter grinding, the grinding machine adopts a grinding disc (the hardness is 570 HL) with the hardness larger than that of the rotary valve and the sealing plate, the grinding star 1 is designed and manufactured, after the rotary valve and the sealing plate are placed in the grinding star 1, the gear 2 of the grinding star 1 is meshed with the gear on the main shaft of the grinding machine, the main shaft of the grinding machine acts, and the grinding star 1 is driven to rotate by means of the transmission of the gear 2, so that the grinding star 1 moves circularly around the main shaft of the grinding machine, friction is generated between the rotary valve and the grinding disc under the sealing plate and the grinding star 1, and automatic mechanical grinding is realized.
The rotary valve placing through holes 3 and the grinding fluid injection holes 5 are respectively provided with 2, and the 2 grinding fluid injection holes 5 are arranged between the rotary valve placing through holes 3 and the sealing plate placing through holes 4, so that the grinding star plate can be reasonably utilized to the greatest extent, and the 2 rotary valves and the 1 sealing plate can be ground for 1 time. Simultaneously, 2 rotary valves and 1 sealing plate can be uniformly provided with grinding liquid through 2 grinding liquid injection holes 5, so that the grinding effect is more uniform and stable.
The connecting lines of the circle centers of the 2 rotary valve placing through holes 3 and the 1 sealing plate placing through holes 4 form 1 isosceles triangle, and the 2 rotary valve placing through holes 3 and the 2 grinding fluid injection holes 5 are symmetrically arranged on two sides of the connecting line of the circle center of the sealing plate placing through holes 4 and the circle center of the grinding star plate 1, so that reasonable layout of the rotary valve placing through holes 3, the sealing plate placing through holes 4 and the grinding fluid injection holes 5 is realized, all holes are uniformly arranged, and the self structural strength of the grinding star plate 1 is ensured.
The top and bottom surfaces of the grinding star plate 1 are of counter bore structures, the rotary valve placing through hole 3, the sealing plate placing through hole 4 and the grinding fluid injection hole 5 are all arranged in the counter bore area, and the counter bore structures can reduce the weight of the grinding star plate 1 and the driving force of the grinding star plate 1. If the top and bottom surfaces of the grinding star plate 1 are both in a plane structure, the whole grinding star plate 1 has heavy mass, and the pressure on the grinding disc is larger, so that the abrasion of the grinding disc is larger. The middle of the grinding star plate 1 is provided with a suspension space, so that the contact between the middle area of the grinding star plate 1 and the grinding disc is avoided, and the loss of the grinding disc is avoided.
The sum of the depth of counter bores on the top and bottom surfaces is larger than 1/2 of the thickness of the grinding star plate 1, so that weight reduction is realized to the greatest extent, and meanwhile, the support strength of the grinding star plate 1 is ensured to meet the use requirement.
Claims (5)
1. A mechanical grinding tool for a train control valve sealing element is characterized by comprising a grinding star plate (1) with a disc structure, wherein a gear (2) is arranged on the outer wall of the whole body of the grinding star plate (1), and a rotary valve placing through hole (3), a sealing plate placing through hole (4) and a grinding fluid injection hole (5) are formed in the grinding star plate (1).
2. The mechanical grinding tool for the train operation valve sealing piece is characterized in that 2 rotary valve placing through holes (3) and grinding fluid injection holes (5) are respectively arranged, and the 2 grinding fluid injection holes (5) are arranged between the rotary valve placing through holes (3) and the sealing plate placing through holes (4).
3. The mechanical grinding tool for the train operating valve sealing element is characterized in that the connecting line of the circle centers of the 2 rotary valve placing through holes (3) and the 1 sealing plate placing through holes (4) form 1 isosceles triangle, and the 2 rotary valve placing through holes (3) and the 2 grinding fluid injection holes (5) are symmetrically arranged on two sides of the connecting line of the circle center of the sealing plate placing through holes (4) and the circle center of the grinding star plate (1).
4. The mechanical grinding tool for the train control valve sealing piece is characterized in that the top surface and the bottom surface of the grinding star plate (1) are of counter bore structures, and the rotary valve placing through hole (3), the sealing plate placing through hole (4) and the grinding fluid injection hole (5) are all arranged in the counter bore area.
5. The mechanical grinding tool for train operation valve seals according to claim 4, wherein the sum of the depths of counter bores of the top and bottom surfaces is greater than 1/2 of the thickness of the grinding star plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421456319.0U CN222806764U (en) | 2024-06-25 | 2024-06-25 | A mechanical grinding tool for train control valve seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421456319.0U CN222806764U (en) | 2024-06-25 | 2024-06-25 | A mechanical grinding tool for train control valve seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222806764U true CN222806764U (en) | 2025-04-29 |
Family
ID=95452380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421456319.0U Active CN222806764U (en) | 2024-06-25 | 2024-06-25 | A mechanical grinding tool for train control valve seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222806764U (en) |
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2024
- 2024-06-25 CN CN202421456319.0U patent/CN222806764U/en active Active
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