CN113546544B - Method for mounting stirring device - Google Patents
Method for mounting stirring device Download PDFInfo
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- CN113546544B CN113546544B CN202110825052.2A CN202110825052A CN113546544B CN 113546544 B CN113546544 B CN 113546544B CN 202110825052 A CN202110825052 A CN 202110825052A CN 113546544 B CN113546544 B CN 113546544B
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Abstract
The invention discloses a method for installing a stirring device, which comprises the following steps: placing an adjusting pad in a shell of the stirring device to pad up the stirring piece, so that the axis of a stirring shaft of the stirring piece is superposed or parallel to the axis of the shell; sleeving the flanges provided with the first tool to two ends of a stirring shaft extending out of the shell, enabling the flanges and the stirring shaft to be located at a positioning position through the first tool, and fixing the positioned flanges to the two ends of the shell; the first tool is removed, a second tool for connecting a flange is arranged on the inner side of the shell, and the second tool acts on the stirring shaft to reset and fix the stirring shaft at the positioning position; a suspension boring is sleeved on the stirring shaft, and a boring cutter of the suspension boring performs annular motion by taking the stirring shaft as a shaft to bore a reference surface on the flange; and a support member and a sealing member for bearing the stirring shaft are arranged on the reference surface. The invention has the advantages of high processing precision, small occupied area, dexterity and easy operation.
Description
Technical Field
The invention relates to the field of processing equipment, in particular to a method for installing a stirring device
Background
The mixing and stirring equipment is generally in a horizontal structure. The stirring device is arranged in the center of the equipment. The stirring device consists of a stirring shaft and stirring pieces such as a helical band, a coulter, a blade and the like which are uniformly distributed around the shaft. The rotation of stirring piece overturns, stirs, breaks the material, makes the material reach homogeneous mixing. In order to ensure the normal operation of the stirring device, the clearance between the stirring members such as the screw band, the coulter, the blades and the like and the cylinder body must be controlled within a certain range. It follows that the coaxiality of the stirring shaft and the barrel is very important. A shaft sealing device is arranged between the stirring shaft and the barrel in a sealing way; the mounting of the support bearing of the shaft is undertaken by the bearing support. In order to ensure the precision of shaft sealing and shaft rotation, the reference plane for mounting the shaft sealing device and the bearing support must be perpendicular to the shaft. When the equipment shell is assembled, a large boring machine is needed when the installation reference surface of the shaft sealing device and the bearing support is processed on the equipment. In addition, the processing is difficult, and the processing may not be possible.
For example, the WLDH8 horizontal type ribbon cooling kettle and the WLDH10 horizontal type ribbon high-temperature kettle which are processed at this time are provided with shaft sealing devices and bearing supports which are arranged on flanges at two ends of equipment. The kettle is structurally characterized in that a cylinder body and elliptical seal heads at two ends are welded into a whole without flange connection. Therefore, before the final girth welding of the apparatus, the finished spiral shaft must be placed in the cylinder and then the final girth welding is performed. The installation of the flanges of the elliptical heads at the two ends becomes a key. After the integral welding is finished, because the spiral belt shaft is arranged in the cylinder body, the flange of the end sockets at the two ends is difficult to process, and even cannot be processed.
See figure 11 for a simplified WLDH8 horizontal ribbon cooling kettle. The associated core of the five major components in the figure is the flange 2. The flange 2 is welded on the equipment shell 3; a bearing seat bracket 5 is fixed on the flange 2 by bolts, and the stirring shaft 1 is supported by a bearing in the bearing seat bracket 5; the shaft sealing device 4 is fixed on the flange 2 by bolts, and the shaft sealing between the sealing element and the stirring shaft 1 adopts packing sealing. Therefore, the assembly quality of the stirring shaft 1 is directly influenced by the positioning welding of the flange 2 and the equipment shell and the processing of the bearing seat mounting reference surface and the shaft seal mounting reference surface on the flange 2.
There has not previously been a suitable machining method for machining the bearing seat mounting datum and the shaft seal mounting datum on the flange 2. Adjustment can only be performed by adding an adjusting flange. Workers with high technical competence are required in the adjustment process. Moreover, uncontrollable factors such as welding deformation exist, and the assembly quality is influenced.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, flanges are difficult to position and weld, and a bearing seat mounting reference surface and a shaft seal mounting reference surface are difficult to process, and provides a mounting method of a stirring device.
The invention solves the technical problems through the following technical scheme:
a method of installing a mixing apparatus, comprising the steps of:
s10: cushioning a stirring piece in a shell of the stirring device to enable a stirring shaft of the stirring piece to be superposed or parallel with the axis of the shell;
s20: the first tool positions the flange by taking the stirring shaft as a first reference, so that the flange and the stirring shaft are positioned at a positioning position, and the positioned flange is fixed on the shell;
s30: the second tool fixes and limits the stirring shaft by taking the flange as a second reference, and the stirring shaft after being fixed and limited is overlapped or slightly lower than the first reference;
s40: a suspension boring is sleeved on the stirring shaft, and a reference surface is bored on the flange by the suspension boring by taking the stirring shaft as a third reference;
s50: and a support member and a sealing member for bearing the stirring shaft are arranged on the reference surface.
The installation method has the advantages that: the first tool positions the flange by taking the stirring shaft as a first reference, so that the flange can be accurately positioned, and the problem of difficulty in mounting and positioning the flange is solved;
the second tool fixes and limits the stirring shaft by taking the flange as a second reference, so that the stirring shaft can be reset to a third reference position basically consistent with the first reference, and the positioning precision is ensured;
compared with the existing boring machine, the boring machine has the advantages of small occupied area, dexterity and easy operation.
More preferably, the positioning position is a position where the flange and the stirring shaft are vertically and concentrically maintained.
Preferably, the first tooling includes a flange portion and a sleeve pipe arranged at the center of the flange portion, the sleeve pipe is perpendicular to the flange portion, the inner diameter of the sleeve pipe is matched with the outer diameter of the stirring shaft, and the step S20 includes: the flange part and the flange are concentrically assembled, and the stirring shaft penetrates into the sleeve. A vertical concentric arrangement between the flange and the stirring shaft is thereby achieved.
Preferably, the step S21 between the steps S20 and S30 includes removing the first fixture and installing a second fixture connected to the flange in the housing. To avoid interference with suspension boring machining of the flange.
Preferably, the second frock includes two holders, two be equipped with the tubular location portion of semicircle on the holder respectively, S30 includes: the two positioning parts are spliced to form a clamping pipe for accommodating the stirring shaft. Thereby realizing the limitation of the stirring shaft
More preferably, the S30 further comprises: and connecting the two clamping pieces by using an adjusting bolt, and tightening the adjusting bolt to enable the clamping pipe to clamp the stirring shaft. Thereby realizing the fixation of the stirring shaft.
Preferably, the first tool, the second tool and the flange are provided with bolt holes which are overlapped in the axial direction, the second datum is the bolt hole on the flange, the first tool is connected to the second datum, and a step S22 of connecting the second tool to the second datum through a bolt after the first tool is detached is included between S21 and S30. Adopt such structure to make the second frock more accurate fix spacing to the (mixing) shaft.
More preferably, the S10 includes the steps of: and clamping an adjusting pad with an inclined surface into an annular gap between the stirring piece and the shell, and enabling the stirring piece to slide relative to the inclined surface. Thereby the stirring piece can be quickly and conveniently padded up.
Preferably, after S50, the method further includes the following steps: s60: and taking away the adjusting pad and the second tool.
1. Through the cooperation of adjusting pad, first frock and second frock, can make between (mixing) shaft and the flange can keep perpendicular and concentric relative position, be favorable to improving the machining precision.
2. Compared with the existing boring machine, the boring machine has the advantages of small floor area, dexterity and easy operation.
Drawings
FIG. 1 is a sectional view of a conventional stirring apparatus
FIG. 2 is a partial view of the head structure of the agitator
FIG. 3 is a schematic diagram of steps S10 and S20;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a side cross-sectional view of a first tooling;
FIG. 6 is a top view of the first tooling;
FIG. 7 is a schematic diagram of step S30;
FIG. 8 is a top view of a second tooling;
FIG. 9 is a side cross-sectional view of a second tooling;
FIG. 10 is a schematic diagram of step S40;
FIG. 11 is a schematic diagram of the background art;
description of reference numerals:
stirring device 100
Shaft seal mounting datum 113
Bearing mount mounting datum 114
Stirring member 120
Stirring shaft 121
Stirring member 122
Hanging bore 200
Clamping member 610
Positioning part 622
Adjusting bolt 630
Adjusting pad 700
Detailed Description
A method of installing a stirring device 100, adapted to the stirring device 100 shown in fig. 1 and 2: the stirring device 100 comprises a horizontal cylindrical shell 110 and a stirring piece 120 arranged in the shell 110, wherein the stirring piece 120 comprises a stirring shaft 121 extending from two axial ends of the shell 110 and stirring components 122 such as a helical ribbon, a blade and a colter arranged around the stirring shaft 121, and the stirring components 122 are connected with the stirring shaft 121.
Referring to fig. 4, the flange 111 is provided with an opening 112 through which the stirring shaft 121 passes. The diameter of the opening 112 is larger than that of the stirring shaft 121, and the bearing seat mounting reference surface 114 and the shaft seal mounting reference surface 113 are circular ring surfaces arranged concentrically with the opening 112. The interface between the bearing housing mounting datum 114 and the shaft seal mounting datum 113 has a stepped configuration. The mounting position of the bearing block support and the shaft sealing device is defined by a stepped structure.
As shown in fig. 2, the stirring shaft 121 passes through the opening 112 of the flange 111, the supporting member 300 and the sealing member 400, and the stirring shaft 121 is supported and sealed by the supporting member 300 and the sealing member 400.
With reference to fig. 3, 7 and 10, the installation method corresponding to the stirring device 100 includes the following steps:
s10: the stirring piece 120 in the shell 110 of the stirring device 100 is padded up, so that the stirring shaft 121 of the stirring piece 120 is overlapped or parallel with the axis of the shell 110;
s20: the first tool 500 positions the flange 111 with the stirring shaft 121 as a first reference, so that the flange 111 and the stirring shaft 121 are in a positioning position, the positioning position is a position where a vertical concentric arrangement is maintained between the flange 111 and the stirring shaft 121, and then the positioned flange 111 is fixed on the shell 110;
s30: the second tool 600 fixes and limits the stirring shaft 121 by using the flange 111 as a second reference, so that the stirring shaft 121 after being fixed and limited is overlapped or slightly lower than the first reference;
s40: a suspension boring 200 is sleeved on the stirring shaft 121, and the suspension boring 200 bores a bearing seat mounting reference surface 114 and a shaft seal mounting reference surface 113 on the flange 111 by taking the stirring shaft 121 after fixed limiting as a third reference;
s50: the seal 400 is mounted on the shaft seal mounting reference surface 113, and the seal 400 is mounted on the bearing housing mounting reference surface 114.
The installation method has the advantages that: the first tool 500 positions the flange 111 by taking the stirring shaft 121 as a first reference, so that the flange 111 and the stirring shaft 121 can be accurately positioned, and the problem that the flange 111 is difficult to install and position is solved;
the second tool 600 fixes and limits the stirring shaft 121 by taking the flange 111 as a second reference, so that the stirring shaft 121 can be fixedly positioned at a third reference position which is basically consistent with the first reference, and the positioning precision is ensured;
compared with the existing boring machine, the boring machine has the advantages of small occupied area, dexterity and easy operation by adopting the suspension boring 200 for processing.
With reference to fig. 4, 5 and 6, the first tooling 500 includes a disk-shaped flange portion 510 and a sleeve 520 disposed at the center of the flange portion 510, the sleeve 520 is perpendicular to the flange portion 510, the inner diameter of the sleeve 520 is adapted to the shaft diameter of the stirring shaft 121, and the fitting tolerance is 0.1mm.
The S20 specifically includes the following steps: the flange portion 510 of the first tooling 500 is concentrically assembled on the outer end face of the flange 111, the stirring shaft 121 sequentially passes through the sleeve 520 and the opening 112 in the flange 111, and the first tooling 500 limits the flange 111 by taking the stirring shaft 121 as a first reference, so that the vertical concentric arrangement between the flange 111 and the stirring shaft 121 is realized.
Specifically, the method includes a step S21 of removing the first fixture 500 and installing the second fixture 600 of the connection flange 111 in the housing 110 between the steps S20 and S30. By adopting the step 21, the stirring shaft 121 can be fixed and limited on the premise of avoiding interference on the machining of the suspension bore 200.
Specifically, with reference to fig. 7, 8, and 9, the second fixture 600 includes two clamping members 610 having the same shape and size, each clamping member 610 includes a semicircular connecting portion 611 and a semicircular tubular positioning portion 622, when the two clamping members 610 are assembled together, the two connecting portions 611 can be assembled to form a circular splicing flange, the two positioning portions 622 can be assembled to form a clamping pipe located at the center of the splicing flange, the clamping pipe is perpendicular to the splicing flange, and the inner diameter of the clamping pipe is adapted to the axial diameter of the stirring shaft 121. The step S30 specifically includes: the second fixture 600 and the flange 111 are assembled concentrically, where the concentric assembly refers to that a splicing flange formed by splicing two clamping members 610 is arranged concentrically with the flange 111, then the stirring shaft 121 is accommodated in a clamping pipe formed by splicing, the two clamping members 610 are connected by using an adjusting bolt 630, and the stirring shaft 121 is clamped by the clamping pipe by tightening the adjusting bolt 630. Therefore, the limit fixation of the stirring shaft 121 is realized, and the stirring shaft 121 at the moment can be positioned on a third reference which is overlapped with or slightly lower than the first reference.
Specifically, the connecting portions 611 have, at the edges of the joining edges 623, joining edges 623 arranged along the edges of the joining edges 623 and perpendicular to the connecting portions 611. The joint edges 623 of the two connecting portions 611 have a gap of 5mm therebetween, and the gap is filled with a soft gasket (not shown). The adjusting bolt 630 is inserted through the splicing edge 623. With this structure, the adjusting bolt 630 can be prevented from loosening by the cushioning effect of the soft washer.
Preferably, the bolt holes 800 are circumferentially arranged on the flange portion 510 of the first tool 500, the flange 111 and the connecting portion 611 of the second tool 600, and the bolt holes 800 on the flange portion 510, the flange 111 and the second tool 600 are overlapped in the axial direction. The center of the bolt hole 800 on the flange portion 510 coincides with the center of the flange portion 510, the center of the bolt hole 800 on the flange 111 coincides with the center of the flange 111, and the center of the bolt hole 800 on the connecting portion 611 coincides with the center of the spliced flange. Therefore, when the flange 111 and the first tool 500 are connected through the bolts, concentric assembly between the first tool 500 and the flange 111 can be realized, when the first tool 500 is disassembled and the second tool 600 and the bolt hole 800 at the same position on the flange 111 are installed and connected, the pipe clamping of the second tool 600 and the center of the splicing flange can be realized, and the stirring shaft 121 can be reset to a third reference position which is overlapped with the first reference or slightly lower than the first reference under the action of the pipe clamping. The effect of adopting such a structure is that the first tool 500 and the second tool 600 can be connected with the flange 111 based on the same installation reference, so that the precision is further improved and the installation process is more convenient and faster.
Specifically, the S10 is implemented by clamping the adjusting pad 700 with the inclined surface 710 into the annular gap between the stirring member 120 and the housing 110, and sliding the stirring member 120 relative to the inclined surface 710, so as to quickly and conveniently cushion up the stirring member 120.
Preferably, the method further comprises the following steps after S50: s60: the adjusting pad 700 and the second tooling 600 are removed. The assembled stirring device 100 can normally operate without being blocked.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (4)
1. The mounting method of the stirring device is characterized in that the mounting method of the stirring device comprises a transverse cylindrical shell and a stirring piece arranged in the shell, the stirring piece comprises a stirring shaft extending out of two axial ends of the shell and a stirring component arranged around the stirring shaft, the stirring component is connected with the stirring shaft, two axial ends of the shell are provided with flanges, the flanges are used for bearing a support piece and a sealing component, the support piece is a bearing seat support, a bearing used for bearing the stirring shaft is mounted in the bearing seat support, the bearing seat support is mounted on a bearing seat mounting reference surface on the flange, the sealing component is a shaft sealing device, a sealing ring used for sealing the stirring shaft is arranged in the shaft sealing device, the shaft sealing device is mounted on the shaft sealing mounting reference surface on the flange, an opening through which the stirring shaft penetrates out is formed in the flange, the diameter of the opening is larger than that of the stirring shaft, the bearing seat mounting reference surface and the shaft sealing mounting reference surface are circular ring surfaces arranged concentrically with the opening, and a junction between the bearing seat mounting reference surface and the shaft sealing mounting reference surface is provided with a step structure, and the mounting method comprises the following steps:
s10: raising a stirring piece in the shell of the stirring device to enable a stirring shaft of the stirring piece to be coincident with or parallel to the axis of the shell;
s20: the first tool locates the flange with the stirring shaft as a first reference, so that the flange and the stirring shaft are located at a locating position, the locating position is a position where the flange and the stirring shaft are kept perpendicular and concentric, the first tool comprises a flange part and a sleeve arranged at the center of the flange part, the sleeve is perpendicular to the flange part, the inner diameter of the sleeve is matched with the outer diameter of the stirring shaft, and the located flange is fixed on the shell, wherein the step S20 further comprises: the flange part of the first tool is concentrically assembled on the outer end face of the flange, and a stirring shaft sequentially penetrates through the sleeve and the openings in the flange;
s21: the first tool is disassembled, a second tool connected with the flange is installed in the shell, the second tool comprises two clamping pieces with the same shape and size, each clamping piece comprises a semicircular connecting portion and a semicircular pipe-shaped positioning portion, when the two clamping pieces are spliced together, the two connecting portions can be spliced to form a circular splicing flange, the two positioning portions can be spliced to form a clamping pipe located in the center of the splicing flange, the clamping pipe is perpendicular to the splicing flange, and the inner diameter of the clamping pipe is matched with the shaft diameter of the stirring shaft;
s30: the second tool uses the flange as a second reference to fix and limit the stirring shaft, the stirring shaft after the fixing and limiting is overlapped or slightly lower than the first reference, and the step S30 specifically comprises the following steps: the second tool and the flange are assembled concentrically, the concentric assembly means that the splicing flange and the flange are arranged concentrically, then the stirring shaft is accommodated in the clamping pipe, the two clamping pieces are connected through adjusting bolts, and the stirring shaft is clamped by the clamping pipe through tightening the adjusting bolts;
s40: a suspension boring is sleeved on the stirring shaft, and a bearing seat mounting reference surface and a shaft seal mounting reference surface are bored out of the flange by the suspension boring by taking the stirring shaft after fixing and limiting as a third reference;
s50: and a sealing element is arranged on the shaft seal installation reference surface, and a supporting piece is arranged on the bearing seat installation reference surface.
2. A method of installing a mixing apparatus as claimed in claim 1, wherein: the first tool, the second tool and the flange are provided with bolt holes which are overlapped in the axial direction, the second datum is the bolt hole in the flange, the first tool is connected to the second datum, and the step S22 is included between S21 and S30.
3. A method of installing a mixing apparatus as claimed in claim 1, wherein: the S10 comprises the following steps:
and clamping an adjusting pad with an inclined surface into an annular gap between the stirring piece and the shell, and enabling the stirring piece to slide relative to the inclined surface.
4. A method of installing a mixing apparatus as claimed in claim 3, wherein: after S50, the method also comprises the following steps:
s60: and taking away the adjusting pad and the second tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825052.2A CN113546544B (en) | 2021-07-21 | 2021-07-21 | Method for mounting stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825052.2A CN113546544B (en) | 2021-07-21 | 2021-07-21 | Method for mounting stirring device |
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| Publication Number | Publication Date |
|---|---|
| CN113546544A CN113546544A (en) | 2021-10-26 |
| CN113546544B true CN113546544B (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110825052.2A Active CN113546544B (en) | 2021-07-21 | 2021-07-21 | Method for mounting stirring device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949945A (en) * | 2012-10-12 | 2013-03-06 | 广西梧州制药（集团）股份有限公司 | Oil leakproof sealing and stirring device |
| CN112091524A (en) * | 2020-08-25 | 2020-12-18 | 中冶宝钢技术服务有限公司 | Tool for rapid centering and positioning of large long shaft and mounting process thereof |
| CN212663266U (en) * | 2020-07-03 | 2021-03-09 | 溧阳市汇昌饲料机械有限公司 | Adjusting device of double-shaft mixer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2905119B2 (en) * | 1995-06-30 | 1999-06-14 | 株式会社東芝 | Washing machine |
| CN102601560B (en) * | 2011-01-25 | 2014-07-09 | 北车兰州机车有限公司 | Welding tooling of mixing shaft bases and welding method of mixing shaft bases |
| CN102527290B (en) * | 2012-01-07 | 2014-01-29 | 黄山拓达科技有限公司 | Stirring shaft fixing seat |
| CN105090516B (en) * | 2014-05-15 | 2017-10-27 | 中联重科股份有限公司 | Mixer and its sealing structure of shaft end and sealing structure of shaft end installation method |
| CN207576205U (en) * | 2017-12-05 | 2018-07-06 | 芜湖东旭光电装备技术有限公司 | Glass liquid stirring stick positioning device |
| CN109499513B (en) * | 2018-12-18 | 2020-09-08 | 威海化工机械有限公司 | Frock that reation kettle agitator was made |
| CN111773947A (en) * | 2020-07-16 | 2020-10-16 | 陕西宏达实业有限公司 | Connecting structure of U-shaped groove and stirrer and mounting method of stirring shaft |
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2021
- 2021-07-21 CN CN202110825052.2A patent/CN113546544B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949945A (en) * | 2012-10-12 | 2013-03-06 | 广西梧州制药（集团）股份有限公司 | Oil leakproof sealing and stirring device |
| CN212663266U (en) * | 2020-07-03 | 2021-03-09 | 溧阳市汇昌饲料机械有限公司 | Adjusting device of double-shaft mixer |
| CN112091524A (en) * | 2020-08-25 | 2020-12-18 | 中冶宝钢技术服务有限公司 | Tool for rapid centering and positioning of large long shaft and mounting process thereof |
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| CN113546544A (en) | 2021-10-26 |
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