CN210476461U

CN210476461U - Flange sealing surface polishing device

Info

Publication number: CN210476461U
Application number: CN201921174252.0U
Authority: CN
Inventors: 叶春; 武伟让; 钟越
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Suzhou Nuclear Power Research Institute Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Suzhou Nuclear Power Research Institute Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-08
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a flange seal face grinding device, include the frame of being connected with the flange cooperation, be located grinding machanism in the frame, be used for the drive grinding machanism moves actuating mechanism, grinding machanism includes the beam barrel, polishes the wheel and connects the connecting piece of polishing wheel and beam barrel, actuating mechanism is including being used for the drive the beam barrel carries out the pivoted motor and is used for giving the power of motor power supply, the one end of beam barrel with the output shaft of motor, the other end of beam barrel with the connecting piece is connected. The utility model discloses a flange seal face grinding device, structural design is reasonable, and the pressure of wheel of polishing on sealed face is adjustable, and safe and reliable to sealed face not damaged, can replace the manual work operation of polishing, has improved flange seal face's the efficiency of polishing effectively.

Description

Flange sealing surface polishing device

Technical Field

The utility model belongs to the equipment field of polishing, concretely relates to flange seal face grinding device is particularly useful for polishing of steam generator hand eye hole seal face.

Background

During the maintenance period is stopped at every turn to the nuclear power station unit, steam generator need the evacuation, then opens hand eye hole and carries out the mud sediment and wash and the inspection, closes the preceding sealed face of need polishing treatment of hole after the end, gets rid of surface oxidation, corrosion and mar, prevents that the sealed face of steam generator during operation from appearing the circumstances such as seepage.

Because sealed face belongs to steam generator key position, in order to avoid sealed face damage, mainly use abrasive paper to rely on at present to clean by hand and polish, polish inefficiency on the one hand, the easy fatigue of repeated operation, on the other hand surrounding environment dose rate is high, should not carry out long-time operation.

Disclosure of Invention

In view of this, in order to overcome prior art's defect, the utility model aims at providing a sealed face grinding device of flange, its convenient to use, safe and reliable have improved the efficiency of polishing of the sealed face of hand eye hole effectively.

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

the utility model provides a flange seal face grinding device, includes the frame of being connected with the flange cooperation, be located grinding machanism in the frame, be used for the drive grinding machanism moves actuating mechanism, grinding machanism includes the beam barrel, grinds the wheel and connects grinding wheel and beam barrel's connecting piece, actuating mechanism is including being used for the drive the beam barrel carries out the pivoted motor and is used for giving the power of motor power supply, the one end of beam barrel with the output shaft of motor, the other end of beam barrel with the connecting piece is connected. The flange sealing surface polishing machine has the advantages that the flange sealing surface polishing machine is installed on the flange, the polishing mechanism and the driving mechanism for driving the polishing mechanism to operate are arranged in the flange, automatic polishing of the flange sealing surface can be achieved, the flange sealing surface polishing machine is simple to use, safe and reliable, and polishing efficiency of the flange sealing surface is effectively improved.

Preferably, the frame includes the right branch fagging, with flange assorted left branch fagging and connect in the connecting rod between left branch fagging and the right branch fagging, left branch fagging and right branch fagging parallel arrangement, the connecting rod perpendicular to left branch fagging and right branch fagging. The frame structure of the cuboid formed by the left support plate, the right support plate and the connecting rod is more stable, and the rocking cannot occur during use.

More preferably, the polishing device comprises an adjusting mechanism for driving the polishing mechanism to move in a direction perpendicular to the sealing surface, the adjusting mechanism comprises a guide rail arranged between the left support plate and the right support plate, a sliding block matched with the guide rail, a screw rod for driving the sliding block to move along the guide rail, and a hand wheel for driving the screw rod to rotate, and the guide rail and the connecting rod are arranged in parallel. When the device is used, the hand wheel is rotated to drive the screw rod to rotate, the sliding block is driven to move along the guide rail, the polishing mechanism is further driven to move along the guide rail, the distance between the polishing mechanism and the flange sealing surface is controlled, and the pressure between the polishing mechanism and the flange sealing surface is adjusted.

Further preferably, adjustment mechanism is including installing motor fixed plate and the beam barrel backup pad on the slider, fixed connection between motor fixed plate and the beam barrel backup pad, the motor is installed on the motor fixed plate, the beam barrel is installed in the beam barrel backup pad, makes holistic structure more firm through motor fixed plate and beam barrel backup pad, and the output shaft of control motor is located same axis with the beam barrel.

Preferably, the motor fixing plate and the shaft cylinder supporting plate are arranged on the sliding block through a support, and the screw rod is connected to the support, namely the screw rod drives the support below the motor fixing plate to move, so that the motor fixing plate, the shaft cylinder supporting plate and the like are driven to move.

Still preferably, a bearing is installed on the shaft cylinder support plate, and the shaft cylinder is arranged in the bearing in a penetrating manner.

More preferably, the left support plate is attached to the flange by a fastener. The flange is provided with a threaded hole, the left support plate can be installed on the flange through bolts and the like, and then polishing treatment is carried out, so that the flange is simple and convenient.

Preferably, the shaft cylinder comprises an outer cylinder and an inner shaft matched with the outer cylinder, the inner shaft is connected with an output shaft of the motor through a coupler, a nut head is arranged at one end, away from the motor, of the outer cylinder, an elastic piece is arranged between the nut head and the inner shaft, one end of the elastic piece acts on the nut head, and the other end of the elastic piece acts on one end, close to the nut head, of the inner shaft. Through setting the axle sleeve to urceolus and interior axle complex formation, and be provided with the elastic component for when adjustment mechanism drove interior axle removal, drive the urceolus through the elastic component and remove, the elastic component plays the effect of buffering, makes the urceolus drive grinding machanism's motion more mitigateing, can not cause injury and excessive wear because adjustment mechanism removes too big and make grinding machanism to sealed face.

More preferably, the center of the circle of the sealing surface is located on the axis of the shaft barrel, the shaft barrel is connected with a plurality of connecting pieces, one end of each connecting piece, which is far away from the shaft barrel, is provided with a grinding wheel, and when the grinding device operates, a path formed by rotation of the grinding wheels is matched with the sealing surface. Adopt promptly with sealed a plurality of emery wheels of face assorted, when polishing, a plurality of emery wheels are driven by the beam barrel and are rotatory simultaneously and form a circular and polish sealed face, are applicable to sealed face and are annular structure. The grinding wheel comprises a grinding part for grinding and a conical connecting part connected with the connecting piece.

Further preferably, three connecting pieces are arranged on the nut head, and an included angle between every two adjacent connecting pieces is 120 degrees. The connecting piece is integrally processed with the nut head, and the strength is higher than that of later welding. And the grinding wheel and the nut head after the connection of the connecting piece have a horizontal distance, namely the grinding wheel, the connecting piece and the nut head form a design similar to a cone, so that the grinding wheel, the connecting piece and the nut head have certain elasticity, when the shaft cylinder moves close to one side of the sealing surface, the pressure can be released more slowly, and the damage and the excessive abrasion to the sealing surface are avoided.

Compared with the prior art, the utility model discloses an useful part lies in: the utility model discloses a flange seal face grinding device, structural design is reasonable, convenient to use, safe and reliable, the manual work of can replacing is polished the operation, has improved the efficiency of polishing of hand eye hole seal face effectively.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a perspective view of a steam generator hand hole sealing surface flange;

FIG. 2 is a perspective view of the flange sealing surface grinding device and the sealing surface after being installed in the preferred embodiment of the present invention;

FIG. 3 is a side view of the flange seal face grinding device in the preferred embodiment of the present invention after being installed with the seal face;

FIG. 4 is a cross-sectional view of a shaft sleeve in the polishing device for a flange sealing surface according to the preferred embodiment of the present invention;

fig. 5 is a perspective view of a grinding wheel in the grinding device for the flange sealing surface according to the preferred embodiment of the present invention;

wherein: 1. a left support plate; 2. a guide rail; 3. a hand wheel; 4. a slider; 5. a support; 6. a motor; 7. a motor fixing plate; 8. a coupling; 9. a shaft cylinder; 91. an outer cylinder; 92. an inner shaft; 93. an elastic member; 94. a nut head; 10. a shaft barrel support plate; 11. a power source; 12. a connecting rod; 13. a connecting member; 14. grinding the wheel; 141. a polishing part; 142. a tapered mounting portion; 15. a fastener; 16. a bearing; 17. a screw rod; 18. a right support plate; 19. a flange; 191. a threaded hole; 192. and (7) sealing the surface.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

Referring to fig. 1-4, the flange sealing surface grinding apparatus of the present embodiment includes a frame cooperatively connected to the flange 19, a grinding mechanism disposed in the frame, a driving mechanism for driving the grinding mechanism to operate, and an adjusting mechanism for driving the grinding mechanism to move in a direction perpendicular to the sealing surface 192.

The frame comprises a right support plate 18, a left support plate 1 matched with a flange 19 and a connecting rod 12 connected between the left support plate 1 and the right support plate 18, wherein the left support plate 1 and the right support plate 18 are arranged in parallel, and the connecting rod 12 is perpendicular to the left support plate 1 and the right support plate 18. The cuboid frame structure formed by the left support plate 1, the right support plate 18 and the connecting rod 12 is more stable and cannot shake in use. The left support plate 1 is attached to the flange 19 by fasteners 15. As shown in fig. 1, the flange 19 has a threaded hole 191, and the left support plate 1 can be mounted on the flange 19 by bolts or the like, and then the grinding process is performed, which is simple and convenient. The flange 19 has a sealing surface 192 thereon and the aperture in the sealing surface 192 is a hand hole.

The driving mechanism comprises a motor 6 for driving the shaft barrel 9 to rotate and a power supply 11 for supplying power to the motor 6.

The grinding mechanism comprises a shaft barrel 9, a grinding wheel 14 and a connecting piece 13 for connecting the grinding wheel 14 and the shaft barrel 9. One end of the shaft tube 9 is connected with the output shaft of the motor 6, and the other end of the shaft tube 9 is connected with the connecting piece 13.

As shown in fig. 4, the shaft tube 9 includes an outer tube 91 and an inner shaft 92 matching with the outer tube 91, the inner shaft 92 is connected with an output shaft of the motor 6 through the coupling 8, one end of the outer tube 91 away from the motor 6 has a nut head 94, an elastic member 93 is disposed between the nut head 94 and the inner shaft 92, one end of the elastic member 93 acts on the nut head 94, the other end of the elastic member 93 acts on one end of the inner shaft 92 close to the nut head 94, the outer tube 91 and the inner shaft 92 are matched with each other by using a key slot, and the elastic member 93 is preferably a spring. Through setting axle barrel 9 to urceolus 91 and interior axle 92 complex formation, and be provided with elastic component 93, control compression spring deformation adjusts the packing force, namely when getting adjustment mechanism to drive interior axle 92 and remove, drive urceolus 91 through elastic component 93 and remove, elastic component 93 plays the effect of buffering for urceolus 91 drives grinding machanism's motion and mitigatees more, can not make grinding machanism cause injury and excessive wear to sealed face 192 because adjustment mechanism removes too greatly.

The adjusting mechanism comprises a guide rail 2 arranged between a left support plate 1 and a right support plate 18, a slide block 4 matched with the guide rail 2, a screw rod 17 used for driving the slide block 4 to move along the guide rail 2, a hand wheel 3 used for driving the screw rod 17 to rotate, a motor fixing plate 7 arranged on the slide block 4 and a shaft barrel support plate 10. That is, in this embodiment, the upper portion of the frame is two parallel arrangement connecting rods 12, the lower portion of the frame is two parallel arrangement guide rails 2, and the guide rails 2 and the connecting rods 12 are arranged in parallel, and both ends of the connecting rods 12 and the guide rails 2 are provided with threaded holes, and the left support plate 1 and the right support plate 18 are connected through fasteners 15 such as bolts.

The height between the motor fixing plate 7 and the shaft barrel supporting plate 10 is adjustable so as to control the axial error between the motor 6 and the shaft barrel 9. Fixed connection between motor fixed plate 7 and beam barrel backup pad 10, motor 6 install on motor fixed plate 7, beam barrel 9 installs on beam barrel backup pad 10, and motor fixed plate 7 and beam barrel backup pad 10 pass through support 5 and install on slider 4, and lead screw 17 is connected on support 5, and lead screw 17 drives support 5 of motor fixed plate 7 below and removes promptly, and then drives motor fixed plate 7, beam barrel backup pad 10 etc. and remove. The whole structure is more stable through the motor fixing plate 7 and the shaft barrel supporting plate 10, and the output shaft of the control motor 6 and the shaft barrel 9 are positioned on the same axis. The shaft barrel supporting plate 10 is provided with a bearing 16, and the shaft barrel 9 penetrates through the bearing 16 and can slide in the bearing 16.

When the polishing mechanism is used, the hand wheel 3 is rotated to drive the screw rod 17 to rotate, the slide block 4 is driven to move along the guide rail 2, the polishing mechanism is further driven to move along the guide rail 2, the distance between the polishing mechanism and the sealing surface 192 of the flange 19 is controlled, and the pressure between the polishing mechanism and the sealing surface 192 of the flange 19 is adjusted.

The circle center of the sealing surface 192 is located on the axis of the shaft barrel 9, the shaft barrel 9 is connected with a plurality of connecting pieces 13, one end of each connecting piece 13, which is far away from the shaft barrel 9, is provided with a grinding wheel 14, and when the grinding device operates, a path formed by the rotation of the grinding wheels 14 is matched with the sealing surface 192. Namely, a plurality of grinding wheels 14 matched with the sealing surface 192 are adopted, and during grinding, the grinding wheels 14 are driven by the shaft barrel 9 to rotate simultaneously to form a circle to grind the sealing surface 192, so that the grinding wheel is suitable for the structure that the sealing surface 192 is annular. The grinding wheel 14 includes a grinding portion 141 for grinding and a tapered connecting portion 142 connected to the connecting member 13, and the grinding portion 141 may be made of rubber or the like.

As shown in fig. 2 to 3, the nut head 94 in this embodiment is provided with three connecting members 13, and the included angle between adjacent connecting members 13 is 120 °. The connector 13 is formed integrally with the nut head 94 and is stronger than the later welded connection. And the grinding wheel 14 and the nut head 94 after the connecting piece 13 is connected have a horizontal spacing, namely the grinding wheel 14, the connecting piece 13 and the nut head 94 form a design similar to a cone, so that the grinding wheel, the connecting piece 13 and the nut head 94 have certain elasticity, when the shaft barrel 9 moves close to one side of the sealing surface 192, the pressure can be released more slowly, and the damage and the excessive abrasion to the sealing surface 192 are avoided.

The working process of the grinding device for the sealing surface 192 of the flange 19 in this embodiment is briefly described as follows:

firstly, the grinding device is installed on the flange 19, the grinding device is started, the power supply 11 supplies power to the motor 6, and the motor 6 rotates to drive the shaft barrel 9 to rotate so as to drive the three grinding wheels 14 to rotate. The hand wheel 3 is tightly shaken to drive the screw rod 17 to rotate, the driving slide block 4 moves on the guide rail 2, the inner shaft 92 is pushed towards the direction close to the flange 19 through the bracket 5, the motor fixing plate 7, the motor 6 and the like, and the elastic piece 93 is compressed. Since the elastic member 93 needs to be restored, the elastic member 93 pushes the nut head 94 and the outer cylinder 91 to move toward the flange 19, and the grinding wheel 14 is acted on by the connecting member 13, so that the grinding wheel 14 approaches the sealing surface 192 of the flange 19 or the pressure between the grinding wheel 14 and the sealing surface 192 is increased, namely, the hand wheel 3 is shaken to make the grinding wheel 14 press on the sealing surface 192.

After polishing, the hand wheel 3 is rocked in the direction, the polishing mechanism is driven by the adjusting mechanism to move in the direction away from the flange 19, the process is opposite to the above process, and the description is omitted.

The utility model discloses a flange seal face grinding device, structural design is reasonable, and the pressure of wheel of polishing on sealed face is adjustable, and safe and reliable to sealed face not damaged, can replace the manual work operation of polishing, has improved flange seal face's the efficiency of polishing effectively.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a flange seal face grinding device which characterized in that: include the frame of being connected with the flange cooperation, be located grinding machanism in the frame, be used for the drive grinding machanism moves actuating mechanism, grinding machanism includes the beam barrel, grinds the wheel and connects the wheel of polishing and the connecting piece of beam barrel, actuating mechanism is including being used for the drive the beam barrel carries out the pivoted motor and is used for giving the power of motor power supply, the one end of beam barrel with the output shaft of motor, the other end of beam barrel with the connecting piece is connected.

2. A grinding device for a sealing surface of a flange according to claim 1, wherein: the frame includes the right branch fagging, with flange assorted left branch fagging and connect the connecting rod between left branch fagging and the right branch fagging, left branch fagging and right branch fagging parallel arrangement, the connecting rod perpendicular to left branch fagging and right branch fagging.

3. A grinding device for a sealing surface of a flange according to claim 2, wherein: the grinding device comprises an adjusting mechanism used for driving the grinding mechanism to move in the direction perpendicular to the sealing surface, the adjusting mechanism comprises a guide rail arranged between the left support plate and the right support plate, a sliding block matched with the guide rail, a lead screw used for driving the sliding block to move along the guide rail and a hand wheel used for driving the lead screw to rotate, and the guide rail and the connecting rod are arranged in parallel.

4. A grinding device for a sealing surface of a flange according to claim 3, wherein: the adjusting mechanism comprises a motor fixing plate and a shaft barrel supporting plate which are arranged on the sliding block, the motor is arranged on the motor fixing plate, and the shaft barrel is arranged on the shaft barrel supporting plate.

5. A flange sealing face grinding device according to claim 4, characterized in that: the motor fixing plate and the shaft barrel supporting plate are arranged on the sliding block through a support, and the screw rod is connected to the support.

6. A flange sealing face grinding device according to claim 4, characterized in that: the bearing is installed on the shaft barrel supporting plate, and the shaft barrel penetrates through the bearing.

7. A grinding device for a sealing surface of a flange according to claim 2, wherein: the left support plate is connected to the flange through a fastener.

8. A flange sealing face grinding apparatus according to any one of claims 1 to 7, wherein: the shaft barrel comprises an outer barrel and an inner shaft matched with the outer barrel, the inner shaft is connected with an output shaft of the motor through a coupler, a nut head is arranged at one end, far away from the motor, of the outer barrel, an elastic piece is arranged between the nut head and the inner shaft, one end of the elastic piece acts on the nut head, and the other end of the elastic piece acts on one end, close to the nut head, of the inner shaft.

9. A grinding device for a sealing surface of a flange according to claim 8, wherein: the center of a circle of the sealing surface is located on the axis of the shaft barrel, the shaft barrel is connected with a plurality of connecting pieces, one end, far away from the shaft barrel, of each connecting piece is provided with a polishing wheel, and when the polishing device operates, a path formed by rotation of the polishing wheels is matched with the sealing surface.

10. A grinding device for a sealing surface of a flange according to claim 9, wherein: three connecting pieces are arranged on the nut head, and the included angle between every two adjacent connecting pieces is 120 degrees.