CN114669805A - Maintenance device and method for on-site cutting of sealing end face of ball valve body - Google Patents

Maintenance device and method for on-site cutting of sealing end face of ball valve body Download PDF

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Publication number
CN114669805A
CN114669805A CN202210385248.9A CN202210385248A CN114669805A CN 114669805 A CN114669805 A CN 114669805A CN 202210385248 A CN202210385248 A CN 202210385248A CN 114669805 A CN114669805 A CN 114669805A
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China
Prior art keywords
valve body
plate
fixed
base plate
fixed base
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CN202210385248.9A
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Chinese (zh)
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CN114669805B (en
Inventor
柳勇
王苇
赵振兴
代路
劳星胜
戴春辉
李少丹
郑召利
徐广展
何涛
杨小虎
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719th Research Institute of CSIC
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719th Research Institute of CSIC
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Priority to CN202210385248.9A priority Critical patent/CN114669805B/en
Publication of CN114669805A publication Critical patent/CN114669805A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Turning (AREA)

Abstract

The invention discloses a maintenance device and a maintenance method for field cuttings of a sealing end face of a ball valve body. Wherein, the maintenance device of the on-spot smear metal of ball valve body seal end face includes: fixed base plate, lead screw subassembly, feeding platform, upper cover plate, a plurality of slide bars, motor, cutter frame and cutter. The fixed base plate is fixed on the valve body to be maintained, and a fixed base plate lug plate is fixed on one side of the fixed base plate. One end of the screw rod assembly is vertically fixed on the lug plate of the fixed base plate, and the middle part of the screw rod assembly is provided with a thread section. One side of the feeding platform is fixed with a platform lug plate, and the platform lug plate can be longitudinally movably sleeved on the thread section of the screw rod assembly. A cover plate ear plate is fixed on one side of the upper cover plate. Therefore, the maintenance device for on-site chip cutting of the sealing end face of the ball valve body has a simple and reasonable structure, can realize on-site chip cutting maintenance of the sealing end face of the ball valve body in a ship cabin under the condition of not disassembling the valve body, shortens the maintenance period and reduces the maintenance cost.

Description

Maintenance device and method for on-site cutting of sealing end face of ball valve body
Technical Field
The invention relates to the technical field of mechanical valves, in particular to a maintenance device and a maintenance method for field cuttings of a sealing end face of a ball valve body.
Background
Ball valves are widely used in marine and ocean engineering. Due to long-term operation in high salt, humid marine environment, the sealing end face of the ball valve often generates surface corrosion, surface defects such as pits, dents and the like are formed, the sealing end face of the ball valve loses flatness and loses sealing capability, and the ball valve leaks. The existing maintenance mode is to disassemble the valve from the ship system and return the valve to the factory, maintain the sealing surface of the valve body of the ball valve on a large machine tool, and then return the valve to the factory for installation on the ship. Firstly, the maintenance period is long, the valve can be transported back and forth for months, and the ship sailing task is influenced; secondly, the maintenance cost is high, and the costs are generated in the processes of disassembling the valve out of the cabin, transporting and maintaining the valve and installing the valve on the ship; thirdly, the valve is not suitable for some special valves, a plurality of ball valves in the ship system are connected to pipelines in a welding mode, and even some valves are directly welded on a ship body pressure-resistant structure and cannot be detached for maintenance.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a maintenance device and a maintenance method for on-site chip cutting of a sealing end face of a ball valve body, which have simple and reasonable structure, can realize on-site chip cutting maintenance of the sealing end face of the ball valve body under the condition that the valve body is not disassembled in a ship cabin, shorten the maintenance period, reduce the maintenance cost, solve the problems that the special valve body is welded and connected with a system and cannot be disassembled for maintenance, and the like, and have important significance for improving the maintainability of the ship system valve.
In order to achieve the above object, in a first aspect, the present invention provides a device for repairing a sealing end surface of a ball valve body by cutting in situ, comprising: fixed base plate, lead screw subassembly, feeding platform, upper cover plate, a plurality of slide bars, motor, cutter frame and cutter. The fixed base plate is fixed on the valve body to be maintained, and a fixed base plate lug plate is fixed on one side of the fixed base plate. One end of the screw rod assembly is vertically fixed on the lug plate of the fixed base plate, and the middle part of the screw rod assembly is provided with a thread section. One side of the feeding platform is fixed with a platform lug plate, and the platform lug plate can be longitudinally movably sleeved on the thread section of the screw rod assembly. And a cover plate lug plate is fixed on one side of the upper cover plate and is fixed on the other end of the screw rod assembly. One end of each sliding rod penetrates through the feeding platform and is fixedly connected with the fixed base plate, and the other end of each sliding rod is fixedly connected with the lower portion of the upper cover plate. The motor is fixed on the feeding platform, and an output shaft of the motor penetrates through the feeding platform and extends into the valve body to be maintained. The cutter frame is fixedly connected with an output shaft of the motor. And the cutter is fixed on the left side of the cutter frame. Wherein, through adjusting lead screw subassembly, can drive and feed the platform longitudinal movement on a plurality of slide bars. When the motor is started, the output shaft can drive the cutter bracket and the cutter to rotate, so that the cutter performs cutting operation on a surface to be maintained.
In an embodiment of the present invention, the fixed substrate is circular, a plurality of mounting holes are formed in the fixed substrate, and the distribution positions of the plurality of mounting holes correspond to the positions of the plurality of mounting holes on the upper end surface of the valve body to be maintained.
In an embodiment of the present invention, the upper cover plate and the feeding platform are circular plates, the sizes and positions of the fixed base plate ear plate, the platform ear plate and the cover plate ear plate are all correspondingly the same, an ear plate through hole is formed in the center of the cover plate ear plate, a threaded hole is formed in the center of the platform ear plate, and the fixed base plate ear plate and the cover plate ear plate are concentric.
In one embodiment of the present invention, the number of the plurality of sliding rods is three, the plurality of sliding rods are all cylindrical, an upper stepped shaft is provided at an upper end of each sliding rod, and a lower stepped shaft is provided at a lower end of each sliding rod.
In an embodiment of the present invention, a feeding platform through hole is formed in the center of the feeding platform, and a plurality of sliding holes are uniformly formed around the central shaft, and the plurality of sliding holes are adapted to the plurality of sliding rods correspondingly.
In one embodiment of the present invention, a lead screw assembly includes: the screw rod, upper bearing, lower bearing and square tenon. The middle part of the screw lever is provided with a thread section, and the lower end of the screw lever vertically penetrates through the cover plate ear plate and the platform ear plate in sequence and is fixed on the fixed base plate ear plate. The upper bearing is sleeved on the upper end of the screw rod, and the upper bearing is fixedly connected with the bottom of the cover plate ear plate in an abutting mode. The lower bearing is sleeved on the lower end of the screw rod, and the lower bearing is fixedly abutted to the top of the lug plate of the fixed base plate. And the square tenon is fixed on the top of the screw rod and is positioned above the upper cover plate. The thread section is correspondingly matched with the threaded hole of the platform lug plate. Wherein, can drive feeding platform longitudinal movement through rotatory square tenon.
In one embodiment of the invention, a tool rack comprises: a tool frame body, a chip amount feed rod, and a chip amount feed nut. The top of the cutter frame main body is fixedly connected with an output shaft of the motor. One end of the chip quantity feed rod is provided with a feed rod screw, and the end with the feed rod screw is transversely inserted into the cutter frame main body and extends out of the cutter frame main body. And the cutting amount feed nut is arranged on one end of the cutter frame body, which is far away from the cutting amount feed rod, and is used for correspondingly matching with the feed rod screw rod. Wherein the tool is fixed to the other end of the chip quantity feed bar. Wherein, the chip quantity feed rod and the cutter frame main body are in horizontal sliding fit. Wherein, feed the nut through rotatory cutting volume, can make cutter frame main part lateral shifting, and then drive cutter lateral shifting.
In one embodiment of the present invention, the upper cover plate is fixedly mounted on the upper stepped shaft by bolts, and is parallel and concentric with the fixed base plate.
In an embodiment of the present invention, the sliding rod is vertically and fixedly installed on the fixed base plate through a bolt, and a center axis of the motor coincides with a center axis of a surface to be maintained of the valve body to be maintained.
In a second aspect, the invention provides a method for repairing the field chips of the sealing end face of the valve body of the ball valve, which comprises the following steps: and step S1, removing the upper end cover of the valve body to be maintained and taking out the valve ball assembly. And step S2, fixing the fixed base plate on the upper end face of the valve body to be maintained through bolts, and simultaneously ensuring that the center shaft of the motor is superposed with the center shaft of the surface to be maintained of the valve body to be maintained. And step S3, rotating the square tenon of the screw rod assembly to enable the feeding platform to move upwards and drive the cutter to retract into the inner space of the maintenance device. In step S4, the chip amount feed nut of the tool frame is rotated to set the chip amount. And step S5, starting the motor to drive the cutter frame to rotate. And step S6, slowly rotating the square tenon of the screw rod assembly to enable the feeding platform to drive the cutter frame to move downwards, and cutting the surface to be maintained until the whole surface to be maintained is machined. And step S7, removing the maintenance device, installing the valve ball assembly and sealing the upper end cover of the valve.
Compared with the prior art, the device and the method for maintaining the on-site chip on the sealing end surface of the ball valve body have simple and reasonable structure, can realize the on-site chip maintenance on the sealing end surface of the ball valve body in a ship cabin under the condition of not disassembling the valve body, shorten the maintenance period and reduce the maintenance cost.
Drawings
FIG. 1 is a front view of a maintenance device for on-site chip cutting of a sealing end face of a ball valve body according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a fixing base plate of a maintenance device for on-site cutting of a sealing end face of a ball valve body according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of an upper cover plate of a maintenance device for on-site cutting of a sealing end face of a ball valve body according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a feeding platform of a maintenance device for on-site chip on a sealing end surface of a ball valve body according to an embodiment of the invention;
FIG. 5 is a schematic structural view of a lead screw assembly of a field chip repair device for a sealing end face of a ball valve body according to an embodiment of the invention;
FIG. 6 is a schematic structural view of a tool rest of a maintenance device for field chipping of a sealing end face of a ball valve body according to an embodiment of the present invention;
FIG. 7 is a flow chart of a method for field chip repair of a sealing end face of a ball valve body according to an embodiment of the invention.
Description of the main reference numerals:
1-a screw rod assembly, 11-a square tenon, 12-an upper bearing, 13-a screw rod, 14-a lower bearing, 2-a slide rod, 3-an upper cover plate, 31-a cover plate lug plate, 32-a lug plate through hole, 4-a motor, 5-a feeding platform, 51-a platform lug plate, 52-a threaded hole, 53-a platform through hole, 6-a cutter frame, 61-a cutter, 62-a chip amount feeding rod, 63-a cutter frame 6 main body, 64-a chip amount feeding nut, 7-a fixed base plate, 71-a fixed base plate lug plate, 72-a mounting hole, 8-a valve body to be maintained and 9-a surface to be maintained.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a front view schematically showing a maintenance device for cutting chips on site at a sealing end face of a ball valve body according to an embodiment of the present invention. Fig. 2 is a schematic structural view of a fixing base plate of a maintenance device for in-situ cutting of a sealing end surface of a ball valve body according to an embodiment of the present invention. Fig. 3 is a schematic structural view of an upper cover plate of a maintenance device for field cutting of a sealing end surface of a ball valve body according to an embodiment of the invention. Fig. 4 is a schematic structural diagram of a feeding platform of a maintenance device for field cuttings of the sealing end surface of a ball valve body according to an embodiment of the invention. FIG. 5 is a schematic structural diagram of a lead screw assembly of a field chip repair device for a sealing end surface of a ball valve body according to an embodiment of the invention. Fig. 6 is a schematic structural view of a tool rest of a maintenance device for field cutting of a sealing end surface of a ball valve body according to an embodiment of the invention.
As shown in fig. 1 to 6, in a first aspect, a field chip repair device for a sealing end surface of a ball valve body according to a preferred embodiment of the present invention includes: the device comprises a fixed base plate 7, a lead screw assembly 1, a feeding platform 5, an upper cover plate 3, a plurality of slide bars 2, a motor 4, a cutter rack 6 and a cutter 61. The fixed base plate 7 is fixed on the valve body 8 to be maintained, and a fixed base plate lug plate 71 is fixed on one side of the fixed base plate 7. One end of the screw rod assembly 1 is vertically fixed on the fixed base plate ear plate 71, and the middle part of the screw rod assembly 1 is provided with a thread section. A platform lug plate 51 is fixed on one side of the feeding platform 5, and the platform lug plate 51 is sleeved on the threaded section of the screw rod assembly 1 in a longitudinally movable manner. A cover plate ear plate 31 is fixed on one side of the upper cover plate 3, and the cover plate ear plate 31 is fixed on the other end of the screw assembly 1. One end of each sliding rod 2 penetrates through the feeding platform 5 and is fixedly connected with the fixed base plate 7, and the other end of each sliding rod 2 is fixedly connected with the lower part of the upper cover plate 3. The motor 4 is fixed on the feeding platform 5, and the output shaft of the motor 4 passes through the feeding platform 5 and extends into the valve body 8 to be maintained. The cutter frame 6 is fixedly connected with an output shaft of the motor 4. And the tool 61 is fixed on the left side of the tool frame 6. Wherein, through adjusting lead screw subassembly 1, can drive feeding platform 5 longitudinal movement on a plurality of slide bars 2. Wherein, when the motor 4 is started, the output shaft can drive the cutter bracket and the cutter 61 to rotate, so that the cutter 61 carries out chip cutting operation on the surface 9 to be maintained.
In an embodiment of the present invention, the fixing substrate 7 is in a ring shape, a plurality of mounting holes 72 are formed in the fixing substrate 7, and the distribution positions of the plurality of mounting holes 72 correspond to the positions of the plurality of mounting holes 72 on the upper end surface of the valve body 8 to be maintained.
In an embodiment of the present invention, the upper cover plate 3 and the feeding platform 5 are circular plates, the sizes and positions of the fixed base plate ear plate 71, the platform ear plate 51 and the cover plate ear plate 31 are all the same, the center of the cover plate ear plate 31 is provided with an ear plate through hole 32, the center of the platform ear plate 51 is provided with a threaded hole 52, and the fixed base plate ear plate 71 and the cover plate ear plate 31 are concentric.
In one embodiment of the present invention, the number of the plurality of slide bars 2 is three, the plurality of slide bars 2 are all cylindrical, an upper stepped shaft is provided at an upper end of each slide bar 2, and a lower stepped shaft is provided at a lower end thereof. The center of the feeding platform 5 is provided with a feeding platform through hole 53, a plurality of sliding holes are uniformly arranged around the central shaft, and the plurality of sliding holes are correspondingly matched with the plurality of sliding rods 2.
In one embodiment of the present invention, the screw assembly 1 includes: a wire lever 13, an upper bearing 12, a lower bearing 14, and a square tenon 11. The middle part of the screw lever 13 is provided with a screw thread section, and the lower end of the screw lever vertically penetrates through the cover plate ear plate 31 and the platform ear plate 51 in sequence and is fixed on the fixed base plate ear plate 71. The upper bearing 12 is sleeved on the upper end of the screw rod 13, and the upper bearing 12 is abutted and fixed with the bottom of the cover plate ear plate 31. The lower bearing 14 is fitted over the lower end of the screw lever 13, and the lower bearing 14 is fixed in abutment with the top of the fixed base plate lug 71. And a square tenon 11 is fixed on the top of the wire lever 13 and positioned above the upper cover plate 3. Wherein the threaded section is adapted to correspond to the threaded hole 52 of the platform lug 51. Wherein, the feeding platform 5 can be driven to move longitudinally by rotating the square tenon 11.
In one embodiment of the present invention, the tool rack 6 comprises: a tool frame body 63, a chip amount feed rod 62, and a chip amount feed nut 64. The top of the tool rack main body 63 is fixedly connected with the output shaft of the motor 4. One end of the chip amount feed bar 62 is provided with a feed bar screw, and the end having the feed bar screw is inserted laterally into the tool frame body 63 and protrudes out of the tool frame body 63. And a cutting amount feed nut 64 is mounted on an end of the tool frame body 63 remote from the chip amount feed bar 62, and the cutting amount feed nut 64 is configured to be fitted correspondingly to the feed bar screw. Wherein the cutter 61 is fixed to the other end of the chip amount feed bar 62. Wherein the chip amount feed bar 62 is in sliding engagement with the tool frame body 63 in the horizontal direction. The cutter frame body 63 can be moved laterally by rotating the cutting amount feed nut 64, and the cutter 61 can be moved laterally.
In one embodiment of the present invention, the upper cover plate 3 is fixed to the upper stepped shaft by bolts, and is parallel to and concentric with the fixed base plate 7. The sliding rod 2 is vertically and fixedly installed on the fixed base plate 7 through a bolt, and the middle shaft of the motor 4 is superposed with the middle shaft of the surface 9 to be maintained of the valve body 8 to be maintained.
In a second aspect, a method for field chip repair of a sealing end surface of a ball valve body according to another preferred embodiment of the present invention includes: and step S1, removing the upper end cover of the valve body 8 to be maintained and taking out the valve ball assembly. And step S2, fixing the fixed base plate 7 on the upper end face of the valve body 8 to be maintained through bolts, and simultaneously ensuring that the center shaft of the motor 4 is superposed with the center shaft of the surface 9 to be maintained of the valve body 8 to be maintained. Step S3, the square tenon 11 of the screw assembly 1 is rotated to move the feeding platform 5 upward, so as to drive the cutter 61 to retract into the internal space of the maintenance device. In step S4, the chip amount feed nut of the tool frame 6 is rotated to set the chip amount. In step S5, the motor 4 is turned on to rotate the cutter frame 6. Step S6, the square tenon 11 of the screw assembly 1 is rotated slowly, so that the feeding platform 5 drives the cutter frame 6 to move downwards, and chips are cut on the surface 9 to be maintained until the whole surface 9 to be maintained is machined. And step S7, removing the maintenance device, installing the valve ball assembly and sealing the upper end cover of the valve.
In practical application, according to the maintenance device and method for on-site cutting of the sealing end face of the ball valve body, the fixing base plate 7 is annular, the fixing base plate lug plate 71 is arranged on one side, a plurality of mounting holes 72 are distributed, and the number and the positions of the mounting holes 72 correspond to the number and the positions of bolt holes in the end face of the valve body 8 to be maintained (shown in fig. 2). The upper cover plate 3 is a circular plate, one side of which is provided with a cover plate ear plate 31, and the size and the position of the upper cover plate are the same as those of the fixed base plate ear plate 71; the center of the cover plate ear plate 31 is provided with an upper cover plate 3 ear plate through hole 32. The slide bar 22 is cylindrical (shown in fig. 3) and has a stepped shaft on each of the upper and lower sides. The feeding platform 5 is a circular plate (shown in fig. 4), a feeding platform through hole 53 is formed in the center, sliding holes are uniformly formed around the central shaft, a feeding platform 5 lug plate is arranged on one side of the feeding platform 5, and a feeding platform 5 lug plate nut (a threaded hole 52) is arranged in the center of the feeding platform 5 lug plate. The lead screw component 1 comprises a square tenon 11, an upper bearing 12, a lower bearing 14 and a lead screw rod 13. The upper bearing 12 and the lower bearing 14 are respectively sleeved on the wire lever 13. The tool frame 6 includes a tool 61, a chip amount feed rod 62, a tool frame body 63, and a chip amount feed nut, and the chip amount feed rod 62 is provided with a feed rod screw (fig. 5). The chip amount feed bar 62 is inserted into the tool frame body 63, and the chip amount feed bar 62 and the tool frame body 63 are in a horizontally sliding restraining relationship.
The cutter 61 is mounted on the left side of the chip amount feed bar 62; the chip amount feed nut is attached to the tool frame body 63 and forms a screw nut engagement with the chip amount feed rod 62. By rotating the chip amount feed nut, the tool 61 can be moved left and right. The slide bar 2 is arranged on the fixed base plate 7 through a bolt, and the axis of the slide bar 2 is ensured to be vertical to the surface of the fixed base plate 7. The number of the slide bars 2 is at least three, the installation positions use the central shaft of the fixed base plate 7 as an axis, and the circumference is evenly distributed. The cover plate is mounted on the stepped shaft of the slide rod 2 through bolts, and is parallel and concentric with the fixed base plate 7, and the fixed base plate lug plate 71 is concentric with the cover plate lug plate 31.
The feeding stage 5 is disposed between the upper cover plate 3 and the fixed base plate 7. The slide bar 2 passes through the slide hole, and the slide bar 2 and the slide hole form sliding fit. The upper bearing 12 of the screw assembly 1 is mounted on the upper cover plate 3, and the lower bearing 14 of the screw assembly 1 is mounted on the fixed base plate 7. The screw rod 13 of the screw assembly 1 passes through the lug plate nut of the feeding platform 5, and the screw rod 13 and the lug plate nut of the feeding platform 5 form screw nut matching. The feeding platform 5 can move up and down by rotating the square tenon 11 of the screw rod component 1. The motor 4 is arranged on the feeding platform 5 through a bolt, and the shaft of the motor 4 passes through the through hole 53 of the feeding platform and extends to the valve body 8 to be maintained. The tool carrier 6 is connected to the rotational shaft of the motor 4.
When in use, the method comprises the following specific steps:
1. removing the upper end cover of the valve, and taking out valve components such as a valve ball and the like;
2. fixing a fixing base plate 7 of the chip maintenance device on the upper end face of the valve body 8 to be maintained through bolts, and simultaneously ensuring that the center shaft of a motor 4 of the chip maintenance device is superposed with the center shaft of the maintenance face of the valve body 8 to be maintained;
3. rotating the square tenon 11 of the screw rod component 1 to enable the feeding platform 5 to move upwards and drive the cutter 61 to retract into the internal space of the chip maintenance device;
3. rotating a chip amount feed nut of the tool frame 6 to set a chip amount;
4. starting the motor 4 to drive the cutter frame 6 to rotate;
5. slowly leading the square tenon 11 of the screw assembly 1 to enable the feeding platform 5 to drive the cutter frame 6 to move downwards, and cutting the maintenance surface until the whole maintenance surface is machined;
6. and (4) removing the chip maintenance device, installing valve components such as a valve ball and the like, and sealing an upper end cover of the valve.
In a word, the device and the method for maintaining the on-site chip of the sealing end surface of the ball valve body have simple and reasonable structure, can realize the on-site chip maintenance of the sealing end surface of the ball valve body in a ship cabin under the condition of not disassembling the valve body, shorten the maintenance period and reduce the maintenance cost.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a maintenance device of on-spot smear metal of ball valve body seal end face which characterized in that includes:
the fixed base plate is fixed on the valve body to be maintained, and a fixed base plate lug plate is fixed on one side of the fixed base plate;
one end of the lead screw component is vertically fixed on the lug plate of the fixed base plate, and the middle part of the lead screw component is provided with a thread section;
a platform lug plate is fixed on one side of the feeding platform and can be longitudinally movably sleeved on the threaded section of the lead screw assembly;
a cover plate lug plate is fixed on one side of the upper cover plate, and the cover plate lug plate is fixed on the other end of the screw rod assembly;
one end of each sliding rod penetrates through the feeding platform and is fixedly connected with the fixed base plate, and the other end of each sliding rod is fixedly connected with the lower part of the upper cover plate;
the motor is fixed on the feeding platform, and an output shaft of the motor penetrates through the feeding platform and extends into the valve body to be maintained;
the cutter frame is fixedly connected with the output shaft of the motor; and
a cutter fixed on the left side of the cutter frame;
the feed platform can be driven to longitudinally move on the plurality of sliding rods by adjusting the lead screw assembly;
when the motor is started, the output shaft can drive the cutter support and the cutter to rotate, so that the cutter can carry out chip cutting operation on a surface to be maintained.
2. The field chip repairing device for the sealing end surface of the ball valve body as claimed in claim 1, wherein said fixed base plate is circular, a plurality of mounting holes are formed on said fixed base plate, and the distribution positions of said plurality of mounting holes correspond to the positions of said plurality of mounting holes on the upper end surface of said valve body to be repaired.
3. The apparatus for repairing a field chip on a sealing end surface of a ball valve body according to claim 1, wherein the upper cover plate and the feeding platform are circular plates, the sizes and positions of the fixing base plate lug plate, the platform lug plate and the cover plate lug plate are the same, a lug plate through hole is formed in the center of the cover plate lug plate, a threaded hole is formed in the center of the platform lug plate, and the fixing base plate lug plate and the cover plate lug plate are concentric.
4. A field chip repair device for a sealing end surface of a ball valve body according to claim 1, wherein said plurality of slide rods is three in number, each of said plurality of slide rods has a cylindrical shape, and each of said plurality of slide rods has an upper stepped shaft at an upper end thereof and a lower stepped shaft at a lower end thereof.
5. The apparatus for repairing a sealing end surface of a ball valve body according to claim 3, wherein a feed platform through hole is formed at the center of the feed platform, a plurality of slide holes are uniformly formed around the central shaft, and the plurality of slide holes are adapted to correspond to the plurality of slide rods.
6. A field chip repair device for a sealing end face of a ball valve body according to claim 3, wherein said lead screw assembly comprises:
the middle part of the screw rod is provided with a thread section, and the lower end of the screw rod vertically penetrates through the cover plate lug plate and the platform lug plate in sequence and is fixed on the fixed base plate lug plate;
the upper bearing is sleeved on the upper end of the screw rod and is fixedly abutted with the bottom of the cover plate ear plate;
the lower bearing is sleeved on the lower end of the screw lever and is fixedly abutted against the top of the lug plate of the fixed base plate; and
the square tenon is fixed on the top of the screw rod and positioned above the upper cover plate;
the threaded section is correspondingly matched with the threaded hole of the platform lug plate;
the square tenon is rotated to drive the feeding platform to move longitudinally.
7. A ball valve body seal face field chip repair device as claimed in claim 1, wherein said tool carrier comprises:
the top of the cutter frame main body is fixedly connected with an output shaft of the motor;
a chip quantity feed rod, wherein one end of the chip quantity feed rod is provided with a feed rod screw rod, and one end provided with the feed rod screw rod is transversely inserted into the cutter frame main body and extends out of the cutter frame main body; and
the cutting amount feeding nut is arranged on one end, far away from the cutting amount feeding rod, of the cutter frame body and is used for being correspondingly matched with the feeding rod screw rod;
wherein the tool is fixed to the other end of the chip amount feeding bar;
wherein the chip quantity feed rod and the cutter frame main body are in horizontal sliding fit;
the cutter frame main body can be transversely moved by rotating the cutting amount feeding nut, so that the cutter is driven to transversely move.
8. The apparatus for field chip repair of a sealing end surface of a ball valve body according to claim 4, wherein said upper cover plate is fixedly mounted on said upper stepped shaft by means of bolts and is parallel and concentric with said fixed base plate.
9. The device for repairing the on-site chip on the sealing end face of the ball valve body as claimed in claim 4, wherein the slide rod is vertically and fixedly installed on the fixed base plate through a bolt, and the central axis of the motor is coincident with the central axis of the surface to be repaired of the valve body to be repaired.
10. A method for repairing the field chip on the sealing end surface of the ball valve body, which is based on the repairing device as claimed in the claim 1 to 9, characterized in that the method for repairing the field chip on the sealing end surface of the ball valve body comprises the following steps:
step S1, removing the upper end cover of the valve body to be maintained, and taking out the valve ball assembly;
step S2, fixing the fixed base plate on the upper end face of the valve body to be maintained through bolts, and simultaneously ensuring that the center shaft of the motor is superposed with the center shaft of the surface to be maintained of the valve body to be maintained;
step S3, the square tenon of the screw rod component is rotated to enable the feeding platform to move upwards and drive the cutter to retract into the inner space of the maintenance device;
step S4, rotating the chip quantity feed nut of the cutter frame to set the chip quantity;
step S5, starting a motor to drive a cutter frame to rotate;
step S6, slowly rotating the square tenon of the screw rod assembly to enable the feeding platform to drive the cutter frame to move downwards, and cutting the surface to be maintained until the whole surface to be maintained is machined;
and step S7, removing the maintenance device, installing the valve ball assembly and sealing the upper end cover of the valve.
CN202210385248.9A 2022-04-13 2022-04-13 Maintenance device and method for on-site cutting of sealing end surface of ball valve body Active CN114669805B (en)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB379298A (en) * 1931-02-24 1932-08-24 Carl August Yertson Improvements in valve seating and cylinder boring devices
US4114483A (en) * 1977-04-08 1978-09-19 Grimsley Ernest E Portable boring tool for ball valves
US4463633A (en) * 1981-07-28 1984-08-07 Grimsley Ernest E Portable boring and refinishing tool for end-loading ball valves
CN106392102A (en) * 2016-11-10 2017-02-15 丁乐冲 Flange end face machining device
KR20200007571A (en) * 2018-07-13 2020-01-22 주식회사 삼신 Apparatus for cutting seat ring of power plant valve
CN210334456U (en) * 2019-07-12 2020-04-17 莆田学院 Drilling equipment for mechanical parts
CN210648641U (en) * 2019-10-21 2020-06-02 苏州华宇精密铸造有限公司 Copper joint drilling equipment
CN211564946U (en) * 2019-12-02 2020-09-25 安吉优创转椅配件厂 Swivel chair part welding machine
CN214443209U (en) * 2021-01-20 2021-10-22 常州市三利精机有限公司 Double-spindle numerical control drilling machine
CN214720715U (en) * 2020-12-02 2021-11-16 徐州鑫达换热设备有限公司 Reaming device is used in radiator production
CN215356298U (en) * 2021-07-15 2021-12-31 杭州富阳美丽华洁具有限公司 A accurate perforating device for bathroom cabinet

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB379298A (en) * 1931-02-24 1932-08-24 Carl August Yertson Improvements in valve seating and cylinder boring devices
US4114483A (en) * 1977-04-08 1978-09-19 Grimsley Ernest E Portable boring tool for ball valves
US4463633A (en) * 1981-07-28 1984-08-07 Grimsley Ernest E Portable boring and refinishing tool for end-loading ball valves
CN106392102A (en) * 2016-11-10 2017-02-15 丁乐冲 Flange end face machining device
KR20200007571A (en) * 2018-07-13 2020-01-22 주식회사 삼신 Apparatus for cutting seat ring of power plant valve
CN210334456U (en) * 2019-07-12 2020-04-17 莆田学院 Drilling equipment for mechanical parts
CN210648641U (en) * 2019-10-21 2020-06-02 苏州华宇精密铸造有限公司 Copper joint drilling equipment
CN211564946U (en) * 2019-12-02 2020-09-25 安吉优创转椅配件厂 Swivel chair part welding machine
CN214720715U (en) * 2020-12-02 2021-11-16 徐州鑫达换热设备有限公司 Reaming device is used in radiator production
CN214443209U (en) * 2021-01-20 2021-10-22 常州市三利精机有限公司 Double-spindle numerical control drilling machine
CN215356298U (en) * 2021-07-15 2021-12-31 杭州富阳美丽华洁具有限公司 A accurate perforating device for bathroom cabinet

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