CN201126016Y - Sealing device of intermediate speed roller disc type grinding mill pull rod - Google Patents
Sealing device of intermediate speed roller disc type grinding mill pull rod Download PDFInfo
- Publication number
- CN201126016Y CN201126016Y CNU2007201317071U CN200720131707U CN201126016Y CN 201126016 Y CN201126016 Y CN 201126016Y CN U2007201317071 U CNU2007201317071 U CN U2007201317071U CN 200720131707 U CN200720131707 U CN 200720131707U CN 201126016 Y CN201126016 Y CN 201126016Y
- Authority
- CN
- China
- Prior art keywords
- taper sheath
- seal
- speed roller
- sealing body
- pressing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000227 grinding Methods 0.000 title claims description 25
- 238000007789 sealing Methods 0.000 title abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 241000316770 Deschampsia cespitosa var. alpina Species 0.000 claims description 6
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The invention provides a sealing device of a medium-speed disc-type mill draw bar, which belongs to sealing device and is characterized in that: a sealing body is an elastic cone with central through hole, an annular groove is arranged on upper part of inner hole wall of the sealing body and a toeing annular groove is arranged on bottom of inner hole wall of the sealing body, a concave conical surface with upper rabbet is arranged at middle and lower part of outer wall of the sealing body, a taper sheath with annular bench equipped at bottom is correspondingly embedded on the concave conical surface, the taper sheath and the sealing body are united into one, a pressing plate with a through hole at one end is equably mounted on circumference of the annular bench, an annular thickness-limiting pad is mounted between the pressing plate and shell of the medium-speed disc-type mill. When using, the sealing body is wore on the draw bar, a bolt passes through the through hole of each pressing plate and the thickness-limiting pad to press the taper sheath against the shell of the middle-speed disc-type mill, the taper sheath can move a certain extent along radial direction to satisfy radial swinging and up-and-down motion of the draw bar, thereby effectively increasing sealing effect, eliminating powder leakage, reducing abrasion of the draw bar and increasing useful lift and production efficiency.
Description
Technical field:
The utility model belongs to seal arrangement, especially relates to a kind of seal arrangement of tumbling mill.
Background technique:
The equipment for preparing industrial powder such as coal dust is except that pebble mill, middling speed roller-plate grinding machine is also used widely, the work of middling speed roller-plate grinding machine is that motor drives the mill rotation by speed reducer, the rotation of mill drives three circumference and is mutually 120 ° of passive rotations of uniform grinding roller, raw coal falls into the mill surface by coal feeding pipe, under action of centrifugal force, raw coal is radially to the mill peripolesis, enter the mill roller-way equably, between mill and grinding roller, mill, the pressure of milling is supplied with by the hydraulic pressure installation that other establishes by loading frame and pull bar, stretch out to connect the piston rod in the oil hydraulic cylinder in the middling speed roller-plate grinding machine of pull bar by sealing, at this moment, pull bar was both done, bottom offset, be 12-15 ° radially wobbling as the angle of inclination again, existing pull bar is made with rigid material, and Sealing is in the high temperature coal dust environment, and pull bar is done multidirectional motion again, powder and wearing and tearing pull bar often occur leaking, reduced manufacturing efficiency.
Summary of the invention:
The purpose of this utility model is the seal arrangement of a kind of middling speed roller-plate grinding machine pull bar of design, eliminates effectively to leak the powder phenomenon, reduces the wearing and tearing of pull bar, improves working life and manufacturing efficiency.
The purpose of this utility model is achieved like this: a kind of seal arrangement of middling speed roller-plate grinding machine pull bar, it is characterized in that seal is the Elastic Circular cone of band central through bore, within it the top of hole wall offer annular groove and within it the bottom of hole wall offer oblique annular groove, with surface of contact that reduces inner hole wall and pull bar and the resiliently deformable that increases inner hole wall, improve sealing effect, in addition, the middle and lower part of seal periphery wall offer with on the concave cone face of seam, the taper sheath of corresponding setting-in bottom band platform on this concave cone face, taper sheath and tightening seal system are integral, the taper sheath is made with metallic material, circumference uniform distribution is provided with the pressing plate of an end band through hole on the ring platform, annular limit hassock is installed between the housing of end of pressing plate band through hole and middling speed roller-plate grinding machine, corresponding each through hole, on the housing of middling speed roller-plate grinding machine, offer screw, tight a bolt, each pressing plate is fitted in the taper sheath on the housing of middling speed roller-plate grinding machine, during use, seal is installed on and seals pull bar on the pull bar, in the through hole of each pressing plate and limit install bolt in the hassock and the taper sheath be fitted on the housing of middling speed roller-plate grinding machine, and make the taper sheath can do certain moving radially, so just can satisfy radially wobbling and moving up and down of pull bar, can eliminate the powder leakage phenomenon effectively again, reduce the wearing and tearing of pull bar, improved working life and manufacturing efficiency.
The sealing device structure of the middling speed roller-plate grinding machine pull bar that the utility model proposed is reasonable, easy to use and reliable, eliminates the powder leakage phenomenon effectively, reduces the wearing and tearing of pull bar, has improved working life and manufacturing efficiency.
Now the seal arrangement of the middling speed roller-plate grinding machine pull bar of in conjunction with the accompanying drawings and embodiments the utility model being carried is further described.
Description of drawings:
Fig. 1 is the main cross-sectional schematic of the seal arrangement of the middling speed roller-plate grinding machine pull bar carried of the utility model.
Among Fig. 1: 1, pull bar 2, seal 3, taper sheath 4, pressing plate 5, limit hassock 6, bolt 7, housing
Embodiment:
As can be seen from Figure 1: a kind of seal arrangement of middling speed roller-plate grinding machine pull bar, it is characterized in that the Elastic Circular cone of seal 2 for the band central through bore, offer annular groove on the top of seal 2 inner hole walls and offer oblique annular groove in the bottom of seal 2 inner hole walls, with surface of contact that reduces inner hole wall and pull bar 1 and the resiliently deformable that increases inner hole wall, improve sealing effect, in addition, the middle and lower part of seal 2 periphery walls offer with on the concave cone face of seam, the taper sheath 3 of corresponding setting-in bottom band platform on this concave cone face, taper sheath 3 and seal 2 are made one, taper sheath 3 usefulness metallic material are made, circumference uniform distribution is provided with the pressing plate 4 of outer end section band through hole on the ring platform, between the housing 7 of the outer end section of pressing plate 4 band through holes and middling speed roller-plate grinding machine, annular limit hassock 5 is installed, corresponding each through hole, on the housing 7 of middling speed roller-plate grinding machine, offer screw, tight a bolt 6, each pressing plate 4 is fitted in taper sheath 3 on the housing 7 of middling speed roller-plate grinding machine, during use, seal 2 is installed on sealing pull bar 1 on the pull bar 1, in the through hole of each pressing plate 4 and limit install bolt 6 in the hassock 5 and taper sheath 3 be fitted on the housing 7 of middling speed roller-plate grinding machine, and make taper sheath 3 can do certain moving radially, so just can satisfy radially wobbling and moving up and down of pull bar 1, can improve sealing effect again, eliminate the powder leakage phenomenon effectively, reduce the wearing and tearing of pull bar 1, improved working life and manufacturing efficiency.
Claims (1)
1, a kind of seal arrangement of middling speed roller-plate grinding machine pull bar is characterized in that:
A, seal (2) are the Elastic Circular cone of band central through bore, offer annular groove on the top of seal (2) inner hole wall and offer oblique annular groove in the bottom of seal (2) inner hole wall;
B, offer in the middle and lower part of seal (2) periphery wall with the concave cone face of going up seam, the taper sheath (3) of corresponding setting-in bottom band platform on this concave cone face, taper sheath (3) and seal (2) are made one;
C, circumference uniform distribution is provided with the pressing plate (4) of outer end section band through hole on the ring platform, between the housing (7) of the outer end section of pressing plate (4) band through hole and middling speed roller-plate grinding machine, annular limit hassock (5) is installed, corresponding each through hole, on the housing (7) of middling speed roller-plate grinding machine, offer screw, tight a bolt (6), each pressing plate (4) is fitted in taper sheath (3) on the housing (7) of middling speed roller-plate grinding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201317071U CN201126016Y (en) | 2007-12-18 | 2007-12-18 | Sealing device of intermediate speed roller disc type grinding mill pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201317071U CN201126016Y (en) | 2007-12-18 | 2007-12-18 | Sealing device of intermediate speed roller disc type grinding mill pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126016Y true CN201126016Y (en) | 2008-10-01 |
Family
ID=39999485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201317071U Expired - Lifetime CN201126016Y (en) | 2007-12-18 | 2007-12-18 | Sealing device of intermediate speed roller disc type grinding mill pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126016Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267127A (en) * | 2013-05-23 | 2013-08-28 | 郭瑜 | Pull rod sealing structure of load-variable coal mill |
| CN111442089A (en) * | 2020-04-24 | 2020-07-24 | 江苏鹏飞集团股份有限公司 | Preheater push rod sealing device and preheater |
| CN114811048A (en) * | 2022-03-30 | 2022-07-29 | 华能国际电力股份有限公司丹东电厂 | Internal sealing structure of HP medium-speed coal mill |
-
2007
- 2007-12-18 CN CNU2007201317071U patent/CN201126016Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267127A (en) * | 2013-05-23 | 2013-08-28 | 郭瑜 | Pull rod sealing structure of load-variable coal mill |
| CN111442089A (en) * | 2020-04-24 | 2020-07-24 | 江苏鹏飞集团股份有限公司 | Preheater push rod sealing device and preheater |
| CN114811048A (en) * | 2022-03-30 | 2022-07-29 | 华能国际电力股份有限公司丹东电厂 | Internal sealing structure of HP medium-speed coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Maanshan Rongyi Sealing Material Co., Ltd. Assignor: Qi Zengrong Contract record no.: 2010340000033 Denomination of utility model: Sealing device of intermediate speed roller disc type grinding mill pull rod Granted publication date: 20081001 License type: Exclusive License Record date: 20100402 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |
|
| CX01 | Expiry of patent term |