CN217668706U

CN217668706U - End face grinding device for maintenance of stop valve

Info

Publication number: CN217668706U
Application number: CN202222046826.4U
Authority: CN
Inventors: 宋万明
Original assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Current assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-10-28
Anticipated expiration: 2032-08-04

Abstract

The utility model relates to a repair tools technical field discloses a stop valve is terminal surface grinder for maintenance to among the solution prior art, the stop valve terminal surface is at the easy incline of grinding in-process abrasive disc and lead to the not good problem of stop valve terminal surface grinding effect. The device is fixed with the guide cylinder including fixed disc in the middle of the fixed disc, runs through being provided with the axis of rotation in the guide cylinder, and axis of rotation bottom fixedly connected with support assembly, this subassembly bottom are connected with the abrasive disc, through the thrust effect of spring, make the abrasive disc closely grind at stop valve body terminal surface. The utility model discloses simple structure, easily operation, support frame assembly's setting has improved the stability of abrasive disc at the rotation in-process, prevents that the incline from appearing in the abrasive disc, has ensured the roughness after the stop valve terminal surface grinds effectively, has improved the valve body terminal surface and has ground the maintenance quality, has good practical value.

Description

End face grinding device for maintenance of stop valve

Technical Field

The utility model relates to a valve repair tools technical field, concretely relates to end face grinder is used in stop valve maintenance.

Background

The stop valve is one of the most widely used valves, and is popular because the friction force between sealing surfaces in the opening and closing process is small, so that the stop valve is durable, easy to manufacture and convenient to maintain, and can be widely applied to various high, medium and low pressure media. The closing principle of the stop valve is that the valve clack sealing surface is tightly attached to the valve seat sealing surface by means of the pressure of a valve rod, and the medium is prevented from flowing. The stop valve is one of the most important cut-off valves, realizes the functions of medium conveying, stopping, adjusting and the like, and the sealing performance of the stop valve directly influences the safe and reliable operation of equipment. In the overhaul of the equipments work, study stop valve sealing characteristic's influence factor and influence law to and how to improve the performance of stop valve through overhauing work, have good practical meaning to the use reliability of valve. Among the current stop valve maintenance technology, adopt grinder to grind the seal face of stop valve mostly to improve the valve body leakproofness, nevertheless easily appear in the grinding process that the abrasive disc takes place the skew and lead to that the stop valve terminal surface roughness is not good, grinding effect is relatively poor, is difficult to guarantee the problem of the good sealing performance of valve body usually.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stop valve is end face grinder for maintenance, the purpose is exactly to solve prior art, because the incline of abrasive disc and lead to the not good problem of stop valve working end face grinding maintenance effect.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a terminal surface grinder is used in stop valve maintenance, includes horizontally fixed disc, and the disc is used for connecting the valve body of stop valve, the center of fixed disc is fixed with vertical guide cylinder, and the guide cylinder runs through the disc, and the guide cylinder internal rotation is connected with vertical axis of rotation, and the guide cylinder is all run through at the upper and lower both ends of axis of rotation.

The upper end of axis of rotation is connected with the crank, the support frame subassembly of the lower extreme fixedly connected with round platform shape of axis of rotation, and the bottom of support frame subassembly is fixed with the abrasive disc, is equipped with the spring between the top of support frame subassembly and the bottom of guide cylinder, the spring housing is in the axis of rotation.

Further, bearing mounting holes are formed in the upper end and the lower end of the guide cylinder, linear bearings are arranged in the bearing mounting holes, and the linear bearings are fixed in the guide cylinder through end covers.

Further, the support frame component comprises an upper top plate, a lower bottom plate and support rods, the upper top plate and the lower bottom plate are arranged at an upper interval and a lower interval, and the support rods are connected between the upper top plate and the lower bottom plate in an annular mode.

Further, the lower extreme of axis of rotation and support frame subassembly top plate fixed connection, the abrasive disc is connected in support frame subassembly bottom plate bottom.

Furthermore, the bottom of guide cylinder and the top of roof all are equipped with the spring holder on the support frame subassembly, the spring card is located in the spring holder.

The utility model discloses following beneficial effect has:

the utility model discloses the lower extreme of axis of rotation is equipped with the support assembly, and the support assembly is used for providing support and stabilizing action for the abrasive disc, prevents that the incline from appearing in the abrasive disc, guarantees the plane degree of stop valve body terminal surface, improves the grinding quality, ensures the leakproofness of stop valve.

Linear bearings are arranged at the upper end and the lower end of the guide cylinder and used for providing rotation and guidance for the rotating shaft, and the rotating shaft is guaranteed to be always in a vertical state.

The fixed disc and the guide cylinder are in a vertical state, so that the alignment degree of the whole grinding device and the valve body of the stop valve is ensured, and the grinding effect is improved.

Spring seats are arranged at the bottom of the guide cylinder and the top of the upper top plate, the springs are clamped in the spring seats, and the springs can ensure that the grinding disc always abuts against the end face of the valve body in the grinding process of the end face of the stop valve, so that the grinding efficiency is improved, and the grinding quality is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the usage state of the present invention.

The reference numerals have the following meanings:

1. fixing the disc; 2. a screw; 3. a guide cylinder; 4. a rotating shaft; 5. a linear bearing; 6. an end cap; 7. a spring; 8. a spring seat; 9. an upper top plate; 10. a support bar; 11. a lower base plate; 12. a grinding disk; 13. a valve body; 14. a crank handle.

Detailed Description

The invention is further described with reference to the following drawings and specific embodiments.

As shown in fig. 1-2, an end face grinding device for maintenance of a stop valve comprises a horizontal fixed disc 1, wherein a plurality of screw holes distributed in an annular mode are formed in the fixed disc 1, the screw holes in the fixed disc 1 correspond to the screw holes in a valve body 13 of the stop valve, a screw rod 2 is arranged in each screw hole, and the fixed disc 1 is connected with the valve body 13 of the stop valve through the screw rod 2. The center of fixed disc 1 is fixed with vertical guide cylinder 3, and guide cylinder 3 runs through fixed disc 1, and the 3 internal rotations of guide cylinder are connected with vertical axis of rotation 4, and guide cylinder 3 is all run through at the upper and lower both ends of axis of rotation 4, and the upper and lower both ends of guide cylinder 3 are equipped with bearing 5's mounting hole, are equipped with linear bearing 5 in the mounting hole, and linear bearing 5 is fixed in on guide cylinder 3 through end cover 6.

The upper end of the rotating shaft 4 is connected with a crank 14, and the lower end of the rotating shaft 4 is fixedly connected with a truncated cone-shaped support frame component. The support frame assembly comprises an upper top plate 9, a lower bottom plate 11 and a support rod 10, wherein the upper top plate 9 and the lower bottom plate 11 are both disc-shaped, the diameter of the lower bottom plate 11 is larger than that of the upper top plate 9, the upper top plate 9 and the lower bottom plate 11 are arranged relatively, and the support rod 10 comprises a plurality of annular support rods which are connected between the upper top plate 9 and the lower bottom plate 11.

The bottom of the lower bottom plate 11 is fixed with a grinding disc 12, a spring 7 is assembled between the top of the upper top plate 9 and the bottom of the guide cylinder 3, and the spring 7 is sleeved on the rotating shaft 4. The bottom of guide cylinder 3 and the top of last roof 9 all are equipped with spring holder 8, and spring 7 card is located in spring holder 8.

The utility model discloses the theory of operation is: the valve cover of the stop valve is opened, the grinding disc of the grinding device extends into the valve body 13 and is aligned to the working end face of the valve body, the fixed disc 1 is placed on the valve body 13 of the stop valve, and the fixed disc 1 is fixedly connected with the valve body 13 through the screw rod 2. At this moment, the grinding disc 12 abuts against the working end face of the valve body 13, the pressing degree is adjusted through the pressing effect of the spring 7, so that the grinding disc 12 is stably pressed on the working end face of the valve body, the crank 14 is rotated to drive the grinding disc 12 to rotate, and then the working end face of the stop valve is ground and repaired.

Claims

1. The utility model provides a stop valve is end face grinder for maintenance which characterized by: including fixed disc (1), the center of fixed disc (1) is fixed with guide cylinder (3), and guide cylinder (3) run through fixed disc (1), be equipped with axis of rotation (4) in guide cylinder (3), the upper end of axis of rotation (4) is connected with crank (14), the lower extreme fixedly connected with support frame subassembly of axis of rotation (4), the bottom of support frame subassembly is equipped with abrasive disc (12), the top of support frame subassembly with be equipped with spring (7) between the bottom of guide cylinder (3), the axis of rotation (4) is located to spring (7) cover.

2. The end face grinding apparatus for repairing a stop valve according to claim 1, wherein: linear bearings (5) are arranged at the upper end and the lower end of the guide cylinder (3), and the linear bearings (5) are fixed in the guide cylinder (3) through end covers (6).

3. The end face grinding apparatus for repairing a stop valve according to claim 1, wherein: the support frame component comprises an upper top plate (9) and a lower bottom plate (11), and the upper top plate (9) and the lower bottom plate (11) are connected through a plurality of support rods (10).

4. A stop valve maintenance end face grinder assembly as claimed in claim 3, wherein: the bottom of the rotating shaft (4) is fixedly connected with the upper top plate (9), and the grinding disc (12) is connected with the bottom of the lower bottom plate (11).

5. The end face grinding apparatus for repairing a stop valve according to claim 4, wherein: the bottom of guide cylinder (3) and the top of last roof (9) all can be dismantled and be equipped with spring holder (8), just spring (7) card is located in spring holder (8).