CN112720329A

CN112720329A - Filler removing tool and filler removing method

Info

Publication number: CN112720329A
Application number: CN202011502871.5A
Authority: CN
Inventors: 焦贤拯; 白洁; 申保国; 付勇峰; 刘才波
Original assignee: Shenhua Bayannur Energy Co Ltd; National Energy Group Coal Coking Co Ltd
Current assignee: Shenhua Bayannur Energy Co Ltd; National Energy Group Coal Coking Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-04-30

Abstract

The invention relates to the technical field of filler disassembly, and discloses a filler disassembling tool and a filler disassembling method. The stuffing removing tool comprises a base, wherein the base is provided with a cutter mounting piece (1), and the extending track of the cutter mounting piece (1) is used for being identical to the extending track of a stuffing box of a column; a tool (2), the tool (2) being arranged on the tool mount (1); wherein the tool (2) comprises a cutting state for being able to extend into the stuffing box, in which cutting state the tool (2) is able to move along an extended trajectory of the stuffing box for cutting the stuffing in the stuffing box. The filler disassembling tool disclosed by the invention is adopted to clean the filler, so that the filler disassembling difficulty is effectively reduced, the working efficiency and the working quality are improved, and the filler box is effectively protected.

Description

Filler removing tool and filler removing method

Technical Field

The invention relates to the technical field of filler disassembly, in particular to a filler disassembling tool and a filler disassembling method.

Background

After the annular graphite packing in the packing box of the high-temperature valve is compressed and subjected to high temperature for a long time, the graphite packing becomes hard, the original effect is lost, and the packing needs to be replaced by new packing. The existing filler taking-out mode usually adopts a hook or a screwdriver to dig out old fillers at a time, the filler disassembling work difficulty is large, the filler is not cleaned up completely, and the inner wall of the filler box is easy to scratch. Therefore, a filler disassembling tool and a filler disassembling method need to be developed to reduce the difficulty of filler disassembly and improve the working efficiency and the working quality.

Disclosure of Invention

The invention aims to solve the problems that the filler is difficult to disassemble and the filler is not cleaned cleanly in the prior art, and provides a filler disassembling tool and a filler disassembling method.

In order to achieve the above object, the present invention provides in one aspect a stuffing removal tool comprising a base and a cutter, the base being provided with a cutter mount having an extension trajectory for being identical to an extension trajectory of a stuffing box of a column; the cutter is arranged on the cutter mounting piece; wherein the tool comprises a cutting state for being able to extend into the stuffing box, in which cutting state the tool is able to move along an extended trajectory of the stuffing box for cutting the stuffing in the stuffing box.

By the technical scheme, the extending track of the cutter mounting piece is used for being the same as the extending track of the stuffing box of the cylinder; and cutting the stuffing in the stuffing box by moving a cutter arranged on the cutter mounting part along the extending track of the stuffing box. The filler disassembling tool disclosed by the invention is used for cleaning the filler, so that the filler disassembling difficulty is effectively reduced, the working efficiency and the working quality are improved, and the filler box is effectively protected.

Further, the tool can be used to adjust the position in the depth direction of the stuffing box.

Further, the extending track of the tool mounting part is an annular extending track, and the moving track of the tool is an annular moving track.

Further, the base includes the barrel, the barrel includes the cutter installed part, the barrel is used for the suit outside the post.

Further, the cylinder serves as the tool mounting member.

Further, the cylinder comprises a plurality of arc-shaped plates, the arc-shaped plates have an opening state and a surrounding state, the opening state and the surrounding state are used for allowing the arc-shaped plates to be sleeved outside the cylinder, in the surrounding state, the arc-shaped plates form a first cavity for being sleeved outside the cylinder, and in the opening state, the arc-shaped plates are used for being sleeved on the cylinder or detached from the cylinder; the cutter is installed at the first end of the arc-shaped plates, and the plurality of arc-shaped plates in the surrounding state can rotate under the drive of external force to drive the cutter to rotate for cutting the filler.

Further, two radii are the same the coaxial surrounding of enclosing of arc circumference is established the barrel, the cutter is installed the first end of barrel.

Furthermore, the cutter is arranged in the middle of the circumference of each arc-shaped plate.

Further, the cutter includes tool bit and blade, the tool bit with the blade is arranged on a straight line, the first end tip at the arc is fixed to the blade, the tool bit deviates from the arc outwards extends in the axial direction.

Further, the end of the cutter head comprises a cutting edge extending along the radial direction of the cylinder body at a set included angle, and the set included angle is smaller than 90 degrees.

Further, the radial width of the cutting edge is set to be equal to the radial thickness of the filler needing to be disassembled.

Furthermore, a driving structure for driving the cylinder to rotate is arranged on the cylinder.

Further, the drive structure is for following the handle of barrel circumference equipartition, the handle is fixed the second end of barrel.

The invention provides a stuffing box dismounting method, wherein a dismounting tool is arranged on an axial path of a stuffing box, a cutter of the dismounting tool extends into the stuffing box, and the cutter moves along an extending track of the stuffing box to cut stuffing in the stuffing box.

Further, the cutter is moved along the circular extending track of the stuffing box to cut the stuffing in the stuffing box.

Further, the cutter rotates while moving along the extending track of the stuffing box.

Further, the dismounting tool enters the stuffing box from the lower part of the stuffing box to carry out rotary cutting on the stuffing, and/or the dismounting tool adopts the stuffing dismounting tool.

Drawings

FIG. 1 is a schematic illustration of a packing removal tool according to one embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a side view of fig. 1.

Description of the reference numerals

A tool mounting member 1; a cutter 2; an arc plate 11; a connecting structure 3; a cutter head 21; a blade body 22; a blade edge 211; a drive structure 4.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. In the present invention, it is to be understood that the terms "away", "toward", "upper", "lower", and the like indicate an orientation or positional relationship corresponding to an actual use; "inner and outer" refer to the inner and outer relative to the profile of the components themselves; this is done solely for the purpose of facilitating the description of the invention and simplifying the description without indicating that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The invention discloses a packing disassembling tool in one aspect, which is shown in figures 1-3: the packing disassembling tool comprises a base and a cutter 2, wherein the base is provided with a cutter mounting piece 1, and the extending track of the cutter mounting piece 1 is used for being identical to the extending track of a packing box of a column; the tool 2 is arranged on the tool mounting part 1; wherein the tool 2 comprises a cutting state for being able to extend into the stuffing box, in which cutting state the tool 2 is able to move along an extended trajectory of the stuffing box for cutting the stuffing in the stuffing box. By the technical scheme, the extending track of the cutter mounting piece 1 is used as the same as the extending track of a stuffing box of a cylinder; and cutting the stuffing in the stuffing box by moving a cutter 2 arranged on the cutter mounting piece 1 along the extending track of the stuffing box. The filler disassembling tool disclosed by the invention is used for cleaning the filler, so that the filler disassembling difficulty is effectively reduced, the working efficiency and the working quality are improved, and the filler box is effectively protected.

Preferably, the tool 2 can be used for adjusting the position in the depth direction of the stuffing box. When the filler is thicker, the cutter can be moved along the extending track of the stuffing box for multiple times to cut the filler layer by layer, and finally the purpose of removing the filler is achieved.

Preferably, the extension track of the tool mount 1 is an annular extension track, and the movement track of the tool is an annular movement track. In this way, the annular packing can be cut. For example, when the packing is a rectangular ring, the extended locus of the tool mount 1 is the extended locus of the rectangular ring and cuts the packing.

A packing removal tool of an embodiment, the base includes a barrel including the tool mount 1, the barrel for being sleeved outside a column. Therefore, the cylinder body can be used as a limiting structure of the cylinder body by sleeving the cylinder body outside the cylinder body, so that the moving track of the cutter 2 is limited.

Preferably, the cylinder serves as the tool mount 1. Can establish outside the post through establishing the barrel cover to establish the packing outside this post with cutter butt cover, can make the cutter to the rotatory cutting of packing through rotatory this barrel, simple structure, the cost is low.

Preferably, the cylinder comprises a plurality of arc-shaped plates 11, the plurality of arc-shaped plates 11 have an open state and a closed state, the plurality of arc-shaped plates 11 are used for allowing the plurality of arc-shaped plates 11 to be sleeved outside the cylinder, in the closed state, the plurality of arc-shaped plates 11 form a first cavity for being sleeved outside the cylinder, and in the open state, the plurality of arc-shaped plates 11 are used for being sleeved on the cylinder or being detached from the cylinder; the cutter 2 is installed at the first end of the arc-shaped plates 11, and the plurality of arc-shaped plates 11 in the surrounding state can rotate under the drive of external force to drive the cutter 2 to rotate for cutting the filler. By utilizing the plurality of arc-shaped plates 11 with the opening state and the enclosing state, the arc-shaped plates can enter the second cavity in the opening state, and the cutter 2 can be rotationally driven to cut the filler in the enclosing state.

Preferably, two arc-shaped plates 11 with the same radius are circumferentially and coaxially detachably arranged to form a cylinder, and the cutter 2 is arranged at the first end of the cylinder. Through enclosing into the barrel with two arcs 11, this kind of simple structure, the operation is also simple, and, when being the annular to the packing that will demolish, this kind of structure can cross the shelter from thing of packing box tip and make arcs 11 get into the packing box respectively after connecting structure 3 connect and form the tube structure, and then the parcel can rotate on the cylinder that the annular packed centers on and can follow this cylinder, make cutter 2 cut the annular packing and peel off the packing from the packing box gradually, owing to adopt cutter 2, cutter 2's hardness can be selected according to packing and makes the packing easily peeled off. Therefore, the working efficiency is improved, the working efficiency is reduced, the stuffing box can be prevented from being scratched, and the working quality of stuffing replacement is improved.

The arc plates 11 can also be arranged at intervals in the circumferential direction, and the arc plates 11 and the annular buckles are arranged together in a buckled mode, so that the arc plates 11 and the annular buckles are connected to form a surrounding structure capable of surrounding the periphery of a cylinder, the cutter 2 can enter the second cavity under the support of the surrounding structure and then rotate along with the rotation of the surrounding structure, and therefore the filler is cut. According to the field situation, the number of the arc-shaped plates 11 and the specific structural form of the connecting structure 3 can be flexibly set according to the actual situation.

Preferably, the connection structure 3 is a threaded connection. Through threaded connection, the plurality of arc-shaped plates 11 can be detachably connected, and the structure is easy to select materials and simple to process.

Preferably, the connection structure 3 comprises a nut welded on the arc-shaped plate 11. This structure is simple, the nut is easy to purchase and cheap, and the connection is simple and reliable by welding the nut on the arc plate 11.

Preferably, the connection structure 3 comprises a bolt in threaded connection with said nut. As shown in fig. 1-3, the nuts are symmetrically welded on both sides of the arc plates 11, the axis of the nut is perpendicular to the axial direction of the arc plates 11, and the bolt is in threaded connection with two adjacent nuts on two adjacent arc plates 11, so as to connect different arc plates 11 together to form a cylinder. The material is easy to obtain, the connection is reliable, the disassembly is easy, and the cost is low.

Preferably, one cutter 2 is arranged in the circumferential middle of each arc-shaped plate 11. Like this, the atress of barrel and cutter 2 is all relatively ideal, when rotatory packing extracting tool, can guarantee simultaneously that the cutting advances along the axial with cutter 2 along the even cutting of packing circumference to both can prolong cutter 2's life, can also guarantee that the packing cuts totally and can protect the packing box not hurt, simultaneously, cutter 2's quantity is less, and processing is simple, and rotation resistance is also less.

Preferably, the cutter 2 comprises a cutter head 21 and a cutter body 22, the cutter head 21 and the cutter body 22 are arranged on a straight line, the cutter body 22 is fixed at the first end of the arc-shaped plate 11, and the cutter head 21 extends outwards along the axial direction away from the arc-shaped plate 11. Like this, can be so that cutter 2 along the axial extension of barrel, when the barrel is rotatory, guarantee during cutter 2 forward propulsion that cutter 2 can last cutting packing always towards the one end terminal surface of cutter 2 and can not cut other spare parts thereby the protection stuffing box.

The base of the packing extracting tool of the second embodiment sets up to be used for the cover to establish the barrel at the stuffing box periphery, and the inner wall of barrel is provided with the spout that extends along the degree of depth of stuffing box, and cutter 2 can remove along this spout, and cutter 2's blade 22 and tool bit 21 extend along the depth direction of stuffing box to tool bit 21 points to the packing, and blade 22 is connected with can provide axial thrust's hold-down structure for cutter 2 so that cutter 2 moves along the extension orbit of stuffing box with to carry out the cutting edge along the depth direction of stuffing box and advance on the packing edge in the stuffing box.

Preferably, the end of the cutting head 21 comprises a cutting edge 211 extending in the radial direction of the cylinder at a set angle, said set angle being smaller than 90 °. The cylinder of one embodiment is formed by uniformly dividing a cylindrical steel pipe into two halves along the axial direction and then connecting the two halves by bolts, and is shown in detail in figure 1. In the embodiment, the outer diameter of the cylinder body is less than about 5mm of the inner diameter of the valve stuffing box, two cutters 2 are welded at the first end of the cylinder body, the cutters 2 are flat scrapers, the width of each scraper is close to that of the stuffing to be taken out, and the extending direction of the cutting edge 211 forms an included angle of about 30 degrees with the radial direction of the cylinder body, so that the cutter is easy to feed, and the width of cutting the stuffing is ensured to be larger; wherein, the cylinder body can adopt stainless steel which is not only anticorrosive but also easily obtained; the cutter 2 is made of T12A high-carbon tool steel or No. 45 steel with higher hardness and certain strength, so that the filler can be cut, certain toughness can be guaranteed, and the service life of the cutter 2 can meet the requirement; in order to further protect the stuffing box, the whole cutter 2 is required to be free of burrs and edges, the cutter 2 and the barrel are firmly welded, the two cutters 2 are symmetrically arranged, and the cutter heads 21 are on the same plane.

Preferably, the radial width of the cutting edge 211 is set equal to the radial thickness of the packing to be removed. Therefore, the filler can be completely cut off by one-time cutting, and the cutting efficiency is improved.

Preferably, a driving structure 4 for driving the cylinder to rotate is arranged on the cylinder. The over-setting driving structure 4 can reduce the labor intensity of the operator. The drive structure 4 may be provided in various forms, either electrically or manually driven.

Preferably, the driving structure 4 is a handle evenly distributed along the circumference of the cylinder body, and the handle is fixed at the second end of the cylinder body. The driving structure 4 is arranged to be a handle driven by manpower, and the structure is simple and low in cost. Is particularly suitable for places with infrequent use.

The invention provides a stuffing box dismounting method, wherein a dismounting tool is arranged on an axial path of a stuffing box, a cutter of the dismounting tool extends into the stuffing box, and the cutter moves along an extending track of the stuffing box to cut stuffing in the stuffing box. The filler disassembling method disclosed by the invention is adopted to clean the filler, so that the filler disassembling difficulty is effectively reduced, the working efficiency and the working quality are improved, and the filler box can be effectively protected.

According to the filler disassembling method, a base of a disassembling tool is set to be a barrel body sleeved on the periphery of a filler box, a sliding groove extending along the depth of the filler box is formed in the inner wall of the barrel body, a cutter can move along the sliding groove, a cutter body and a cutter head of the cutter extend along the depth direction of the filler box, the cutter head points to filler, the cutter body is connected with a compression structure capable of providing axial thrust for the cutter, so that the cutter moves along the extending track of the filler box to cut the filler edge in the filler box to advance along the depth direction of the filler box, when the filler is thin, the cutter is moved once along the extending track of the filler box to remove the filler, when the filler is thick, the cutter is moved along the extending track of the filler box for multiple times to cut the filler layer by layer, and finally the purpose of removing the filler is achieved.

Preferably, the tool is moved along a circular extension of the stuffing box to cut the stuffing in the stuffing box. In this way, a round filler can be cut.

Preferably, the cutter rotates while moving along the extended trajectory of the stuffing box. By adopting the mode, the stuffing can be cut when the cutter rotates, one part of the stuffing is cut and then revolved to cut the rest of the stuffing along the extending track of the stuffing box, so that the cutting resistance can be reduced, and the cutting efficiency can be further improved.

Preferably, the removal tool enters the stuffing box from the lower part of the stuffing box to carry out rotary cutting on the stuffing. Therefore, the cut scraps can automatically fall off from the stuffing box, and the cutting efficiency can be improved.

Preferably, the dismounting tool adopts the above-mentioned packing dismounting tool. The advantages of the stuffing removal tool have already been described above and will not be described in detail here.

Preferably, the cut-off packing is flushed out of the stuffing box by means of a fluid. Thus, the speed of the filler removal is further improved.

Preferably, the residual packing in the stuffing box is blown off by an air pump. Therefore, the filler can be cleaned up without generating sewage. Of course, if dust is required on site, flushing with liquid may also be used. The cut filler can be flushed out by fluid, so that the filler is convenient and clean.

In the method for disassembling filler according to the second embodiment, the base of the disassembling tool is arranged to be a barrel body sleeved on the periphery of the barrel body, the barrel body comprises two semi-cylindrical arc-shaped plates, the two semi-cylindrical arc-shaped plates are split when in an opening state, when in a surrounding state, the two semi-cylindrical arc-shaped plates form a first cavity used for being sleeved outside the cylinder body, the cutter is installed at the first end of the arc-shaped plates, and the two arc-shaped plates in the surrounding state can rotate under the driving of external force to drive the cutter to rotate for cutting filler. Wherein, the blade and the tool bit of cutter extend along the depth direction of packing box to the directional filler of tool bit, when rotating extracting tool, the packing box opening makes progress, and the tool bit of cutter is downward, and operating personnel gives extracting tool decurrent power while changeing extracting tool, makes the cutter press close to the filler all the time, thereby makes the cutter advance along with the cutting going on in the depth direction of packing box. When the filler is thin, the cutter is moved once along the extending track of the stuffing box to remove the filler, and when the filler is thick, the cutter is moved along the extending track of the stuffing box for multiple times to cut the filler layer by layer, so that the purpose of removing the filler is finally achieved.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A packing removal tool, characterized in that the packing removal tool comprises

The device comprises a base, wherein the base is provided with a cutter mounting piece (1), and the extending track of the cutter mounting piece (1) is used for being identical to the extending track of a stuffing box of the column;

a tool (2), the tool (2) being arranged on the tool mount (1);

wherein the tool (2) comprises a cutting state for being able to extend into the stuffing box, in which cutting state the tool (2) is able to move along an extended trajectory of the stuffing box for cutting the stuffing in the stuffing box.

2. Stuffing removal tool according to claim 1, characterized in that the tool (2) can be used for adjusting the position in the depth direction of the stuffing box.

3. The packing removal tool according to claim 1, characterized in that the extension trajectory of the tool mount (1) is an annular extension trajectory and the movement trajectory of the tool is an annular movement trajectory.

4. The packing removal tool of claim 1, wherein the base comprises a cylinder including the cutter mount (1), the cylinder being adapted to be fitted outside a cylinder.

5. The packing removal tool of claim 4, wherein the cylinder serves as the knife mount (1).

6. The packing removal tool of claim 5, wherein the barrel comprises a plurality of arcuate plates (11), the plurality of arcuate plates (11) having an open state for allowing the plurality of arcuate plates (11) to be nested outside the cylinder, in which the plurality of arcuate plates (11) form a first cavity for nesting outside the cylinder, and a closed state, in which the plurality of arcuate plates (11) are for nesting on or removal from the cylinder;

the cutter (2) is arranged at the first end of the arc-shaped plate (11),

the plurality of arc-shaped plates (11) in the surrounding state can rotate under the driving of external force so as to drive the cutter (2) to rotate for cutting the filler.

7. The packing removal tool of claim 6, wherein two arcuate plates (11) of the same radius are circumferentially and coaxially removably enclosed in the cylinder, the cutter (2) being mounted at a first end of the cylinder.

8. The packing removal tool according to claim 7, characterized in that one cutter (2) is provided per circumferential middle of the curved plate (11).

9. The packing removal tool according to claim 8, wherein the cutting tool (2) comprises a cutting head (21) and a cutting blade (22), the cutting head (21) and the cutting blade (22) being arranged in a straight line, the cutting blade (22) being fixed at a first end of the curved plate (11), the cutting head (21) extending axially outwards away from the curved plate (11).

10. The packing removal tool of claim 9, wherein the end of the cutting head (21) includes a cutting edge (211) extending in a radial direction of the barrel at a set included angle, the set included angle being less than 90 °.

11. The packing removal tool of claim 10, wherein the cutting edge (211) has a radial width that is set equal to a radial thickness of the packing to be removed.

12. Stuffing removal tool according to any of claims 4 to 11, characterized in that a drive arrangement (4) is provided on the cylinder for driving the cylinder in rotation.

13. Stuffing removal tool according to claim 12, characterized in that the driving structures (4) are handles distributed evenly along the circumference of the cylinder, said handles being fixed at the second end of the cylinder.

14. A stuffing removal method, characterized in that a removal tool is arranged on an axial path of a stuffing box so that a cutter of the removal tool extends into the stuffing box, and the cutter is moved along an extended trajectory of the stuffing box to cut the stuffing in the stuffing box.

15. The stuffing removal method of claim 14, wherein moving the cutter along the circularly extending trajectory of the stuffing box cuts the stuffing in the stuffing box.

16. The stuffing removal method according to claim 14, wherein the cutter rotates while moving along the extended trajectory of the stuffing box.

17. The stuffing removal method of claim 14, wherein the stuffing is rotationally chipped by entering the removal tool into the stuffing box from a lower portion of the stuffing box, and/or wherein the removal tool is the stuffing removal tool according to any one of claims 1 to 13.