CN102773146A - Device for sealing inlet pipe of grinding machine - Google Patents
Device for sealing inlet pipe of grinding machine Download PDFInfo
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- CN102773146A CN102773146A CN2011101248689A CN201110124868A CN102773146A CN 102773146 A CN102773146 A CN 102773146A CN 2011101248689 A CN2011101248689 A CN 2011101248689A CN 201110124868 A CN201110124868 A CN 201110124868A CN 102773146 A CN102773146 A CN 102773146A
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- feed pipe
- grinding machine
- seal
- sealing device
- radial seal
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Abstract
The invention relates to a device for sealing an inlet pipe of a grinding machine, comprising a radial seal which is tightly sleeved on the inlet pipe and positioned between the inlet pipe and the wall of a feed inlet, wherein the radial seal is tubular. According to the invention, the defects of bad sealing effect, complicated structure, difficult and time-consuming installation existing in the prior art are overcome, and the device provided by the invention has the advantages of simple structure and easy installation.
Description
Technical field
The present invention relates to a kind of be used to not have press or low pressure, low-speed running operating mode under sealing device.Especially be a kind of sealing device that is used for the grinding machine feed pipe.
Background technology
Grinding machine is widely used in the fields such as mine, metallurgy, chemical industry, and the barrel of grinding machine constantly rotates, and abrasive material, mill liquid and material in the barrel evenly mixed and through abrasive material material is ground.The barrel of grinding machine is provided with material is dropped into the charging aperture in the barrel, and the charging aperture place establishes feed pipe.In order to prevent abrasive material, the material in the barrel or to grind liquid and come out, must between feed pipe and charging aperture wall, sealing device be set from charging aperture.At present, sealing of the feed pipe of grinding machine or complex structure, cost is high, or does not just have sealing device at all.
Publication number is that the Chinese patent document of CN181038A discloses a kind of grinding machine charging tubular axis, united sealing unit; Comprise wear-resisting elastic sealing elements of V-type and the wear-resisting elastic sealing elements of I type between the charging lining that is located at feed pipe and barrel; Adopt the mode that contacts with elastic surface between the wear-resisting elastic sealing elements of V-type and the outside seal baffle plate to form axial seal; And utilize the mode that contacts with elastic surface between the wear-resisting elastic sealing elements of I type and the charging lining to form radial seal; The wear-resisting elastic sealing elements of V-type contacts with the Elastic Circular cylinder with feed pipe and forms sealing; Therefore, mainly contain two sealing surfaces between the wear-resisting elastic sealing elements of V-type and sealing baffle and the feed pipe, the wear-resisting elastic sealing elements of V-type has certain axial compression amount; Form elastic surface with sealing baffle and contact, pressing plate compresses the wear-resisting elastic sealing elements of I type and is connected on the location-plate.Above-mentioned sealing device only adopts the wear-resisting elastic sealing elements of I type in radial seal, because the charging lining rotates with barrel, be movable sealing between charging lining and the feed pipe; After using the long period; The distortion that very easily is worn of the wear-resisting elastic sealing elements of I type reduces sealing effectiveness greatly, causes mill liquid even abrasive material from barrel, to flow out; Not only contaminated environment also possibly damaged miscellaneous part because abrasive material flows to the miscellaneous part of equipment.Simultaneously, the structure of above-mentioned sealing device is more complicated also, and cost is higher.In addition; The fitting operation of the above-mentioned sealing device time difficult, that taken is also very long; Installation needs operating personnel to creep in the barrel, installs, if can cause sealing device stressed generation moderate finite deformation and do not reach the effect of sealing in installation process in the export-oriented barrel of barrel according to the direction outside barrel in barrel; Fitting operation need spend the time of several days even tens days, has had a strong impact on production efficiency.
Summary of the invention
The technical problem that the present invention solves is to overcome that the sealing device sealing effectiveness of existing grinding machine feed pipe is poor, complex structure, the time-consuming shortcoming of difficult installation, provide a kind of good sealing effect and simple in structure, be prone to the grinding machine feed pipe sealing device installed.
Grinding machine feed pipe sealing device provided by the invention comprises the radial seal that is locked on the feed pipe, between said feed pipe and charging aperture wall, and said radial seal is a tubulose.
The outer circumference surface of said radial seal is provided with at least one annular protrusion coaxial with said radial seal, and the external diameter of said annular protrusion is greater than the internal diameter of said charging aperture.As preferably, the cross section of said annular protrusion is rectangle or trapezoidal or circular arc.
As preferably, the bar number of said annular protrusion is more than or equal to 2.
As preferably, be formed for storing the groove of lubricant between two adjacent said annular protrusions.
As preferably; Grinding machine feed pipe sealing device of the present invention also comprises the axial seal that is sheathed on the said feed pipe, is positioned at said charging aperture outside; Said axial seal is connected with said radial seal; The external diameter of said axial seal is greater than the internal diameter of said charging aperture, and the internal diameter of said axial seal is less than the internal diameter of said charging aperture, and said axial seal is arranged on the outer face that baffle plate or flange on the said feed pipe be pressed on said charging aperture and forms axial seal.
Preferred as further, said axial seal and said radial seal are one-body molded.
Preferred as further, said axial seal and said radial seal are processed by elastomeric material.
Preferred as further, said axial seal and said radial seal are processed by polyurethane.
Preferred as further, the internal diameter of said axial seal is greater than the internal diameter of said radial seal.
Grinding machine feed pipe sealing device of the present invention is compared with prior art, has following beneficial effect:
1, formed very wide sealing surface between the outer circumference surface of the radial seal of tubulose and the grinding machine charging aperture wall, its good sealing effect, simple in structure and easy mounting.
2, the outer circumference surface of radial seal is provided with annular protrusion, and the external diameter of annular protrusion is greater than the internal diameter of charging aperture, and is interference fit between the charging aperture wall, makes sealing effectiveness more reliable.In addition because grinding machine feed pipe sealing device of the present invention and charging aperture wall realize sealing through annular protrusion, radial seal and charging aperture wall contact and the area of friction makes caloric value reduce for a short time, can prolong the service life of sealing device.
3, many annular protrusions have formed the multiple tracks labyrinth seal, even abrasive material oozes out from innermost annular protrusion with mill liquid under pressure, still can be blocked by the annular protrusion of outside, and its sealing property is reliable.
4, be formed for storing the groove of lubricant between adjacent two said annular protrusions.Lubricant can further reduce the friction between charging aperture wall and the seal, further reduces because the caloric value that causes of friction, prolongs the service life of sealing device.
5, axial seal has further improved sealing property.When radial seal received the power in barrel, barrel is outer to produce pulling force to seal radially because axial seal is blocked in, and therefore, radial seal can not move in barrel.Behind the grinding machine long-play,,, do not need human intervention, can guarantee the sealing between the end face of axial seal and charging aperture yet because axial seal has elasticity even the end face of axial seal produces wearing and tearing to a certain degree.
6, the internal diameter of said axial seal is greater than the internal diameter of said radial seal; When axial seal receives axial extruding distortion radially takes place; Space between axial seal and the feed pipe provides compensation space for distortion; It is bad to prevent that axial seal from being squeezed, thereby prolongs its service life.
Description of drawings
Fig. 1 is the structural representation of the grinding machine feed pipe sealing device of one embodiment of the invention.
Reference numeral
The 1-feed pipe, 2-charging aperture wall, 3-radial seal, 4-annular protrusion, 5-groove, 6-axial seal, 7-baffle plate.
The specific embodiment
Fig. 1 is a kind of grinding machine feed pipe sealing device; Comprise the radial seal 3 that is locked at the tubulose on the feed pipe 1, between feed pipe 1 and charging aperture wall 2; 2 of the outer circumference surface of the radial seal 3 of tubulose and grinding machine charging aperture wall have formed very wide sealing surface, have improved sealing property.In the present embodiment, the outer peripheral face of said radial seal 3 is provided with at least one annular protrusion 4 along the circumference of said radial seal 3.The cross section of said annular protrusion 4 is rectangle or trapezoidal or circular arc.The internal diameter of radial seal 3 is enclosed within on the feed pipe 1 radial seal 3 less than the internal diameter of feed pipe 1 securely, prevents that abrasive material and mill liquid are from revealing between radial seal 3 and the feed pipe 1.The external diameter of annular protrusion 4 is greater than the internal diameter of charging aperture; And form interference fit between the charging aperture wall 2; Annular protrusion 4 is extruded distortion at feed pipe 1 and 2 on charging aperture wall, forms radial seal, prevents that abrasive material and mill liquid are from revealing between annular protrusion 4 and the charging aperture wall 2.In the present embodiment, radial seal 3 is provided with many annular protrusions, and it is multiple-sealed that many annular protrusions 4 can form, for example 2 or 7.In the present embodiment, the bar number of annular protrusion 4 is 7, even abrasive material oozes out from innermost annular protrusion 4 with mill liquid under pressure, still can be blocked by the annular protrusion 4 of outside, and its sealing property is more reliable.Secondly, grinding machine feed pipe sealing device of the present invention is compared with existing sealing device, and it is simple in structure, and cost is also lower.In addition; Grinding machine feed pipe sealing device of the present invention be prone to be installed, and when the hyperphoric new sealing device of needs, only need feed pipe and seal be pulled out from the outside of barrel; New seal is changed on the feed pipe 1; Advance the feed pipe of more finishing changing seal 1 the grinding machine charging aperture to fix and get final product, it is simple to operate, has not only reduced labor intensity of operating personnel and has also submitted operating efficiency greatly to.Simultaneously because grinding machine feed pipe sealing device of the present invention and charging aperture wall 2 realized sealing through annular protrusion 4, with charging aperture wall 2 contact and the area of friction little, caloric value reduces, the prolongation in service life.
As preferably, be formed for storing the groove 5 of lubricant between two adjacent said annular protrusions 4.Lubricant can further reduce the friction between charging aperture wall 2 and the seal, the caloric value that further reducing rubs causes, the service life of prolongation sealing device.
As preferably; Grinding machine feed pipe sealing device of the present invention also comprises the axial seal 6 that is sheathed on the said feed pipe 1, is positioned at said barrel outside; Said axial seal 6 is connected with said radial seal 3; The external diameter of said axial seal 6 is greater than the internal diameter of said charging aperture; The internal diameter of said axial seal 6 is less than the internal diameter of said charging aperture, and said axial seal 6 is arranged on the baffle plate 7 of the annular on the feed pipe 1 or the outer face that flange is pressed on said charging aperture and forms axial seal.Said axial seal 6 and said radial seal 3 are processed by elastomeric material, adopt polyurethane to process in the present embodiment.Even abrasive material and mill liquid ooze out between radial seal 3 and charging aperture wall 2, also can be blocked, thereby further improve sealing property by axial seal 6.When radial seal 3 received the power in barrel, barrel is outer to produce pulling force to seal 3 radially because axial seal 6 is blocked in, and therefore, radial seal 3 can not move in barrel.Behind the grinding machine long-play,,, do not need human intervention, can guarantee the sealing between the end face of axial seal 6 and charging aperture yet because axial seal 6 has elasticity even the end face of axial seal 6 produces wearing and tearing to a certain degree.
As preferably, said axial seal 6 is one-body molded with said radial seal 3, and its sealing is more reliable.
As preferably, the internal diameter of said axial seal 6 is greater than the internal diameter of said radial seal 3.In the present embodiment; The internal diameter of said axial seal 6 is greater than the external diameter of said feed pipe 1; Distortion radially, axial seal 6 takes place when receiving axial extruding; Space between axial seal 6 and the feed pipe 1 is for distortion provides compensation space, and it is bad to prevent that axial seal 6 from being squeezed, thereby prolongs its service life.
Above embodiment is merely exemplary embodiment of the present invention, is not used in restriction the present invention, and protection scope of the present invention is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the present invention in essence of the present invention and protection domain, this modification or be equal to replacement and also should be regarded as dropping in protection scope of the present invention.
Claims (10)
1. grinding machine feed pipe sealing device, it is characterized in that: comprise the radial seal that is locked on the feed pipe, between said feed pipe and charging aperture wall, said radial seal is a tubulose.
2. grinding machine feed pipe sealing device according to claim 1; It is characterized in that: the outer circumference surface of said radial seal is provided with at least one annular protrusion coaxial with said radial seal, and the external diameter of said annular protrusion is greater than the internal diameter of said charging aperture.
3. grinding machine feed pipe sealing device according to claim 2 is characterized in that: the cross section of said annular protrusion is rectangle or trapezoidal or circular arc.
4. according to claim 2 or 3 described grinding machine feed pipe sealing devices, it is characterized in that: the bar number of said annular protrusion is more than or equal to 2.
5. grinding machine feed pipe sealing device according to claim 4 is characterized in that: the groove that is formed for storing lubricant between two adjacent said annular protrusions.
6. according to claim 1,2,3 or 5 described grinding machine feed pipe sealing devices; It is characterized in that: also comprise the axial seal that is sheathed on the said feed pipe, is positioned at said charging aperture outside; Said axial seal is connected with said radial seal; The external diameter of said axial seal is greater than the internal diameter of said charging aperture, and said axial seal is arranged on the outer face that baffle plate or flange on the said feed pipe be pressed on said charging aperture and forms axial seal.
7. grinding machine feed pipe sealing device according to claim 6 is characterized in that: said axial seal and said radial seal are one-body molded.
8. grinding machine feed pipe sealing device according to claim 6 is characterized in that: said axial seal and said radial seal are processed by elastomeric material.
9. grinding machine feed pipe sealing device according to claim 8 is characterized in that: said axial seal and said radial seal are processed by polyurethane.
10. grinding machine feed pipe sealing device according to claim 6, it is characterized in that: the internal diameter of said axial seal is greater than the internal diameter of said radial seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101248689A CN102773146A (en) | 2011-05-13 | 2011-05-13 | Device for sealing inlet pipe of grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101248689A CN102773146A (en) | 2011-05-13 | 2011-05-13 | Device for sealing inlet pipe of grinding machine |
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| Publication Number | Publication Date |
|---|---|
| CN102773146A true CN102773146A (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101248689A Pending CN102773146A (en) | 2011-05-13 | 2011-05-13 | Device for sealing inlet pipe of grinding machine |
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| CN (1) | CN102773146A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02157052A (en) * | 1988-12-07 | 1990-06-15 | Babcock Hitachi Kk | Vertical crusher of rotary classifying type |
| JPH09267047A (en) * | 1996-04-01 | 1997-10-14 | Ishikawajima Harima Heavy Ind Co Ltd | Seal fluid feed device of coal pulverizing mill |
| CN1810380A (en) * | 2006-02-28 | 2006-08-02 | 沈阳重型机械集团有限责任公司 | Feeding pipe and shaft united sealing unit for mill |
| CN200968458Y (en) * | 2006-11-20 | 2007-10-31 | 徐耀祥 | Ball milling helix tube sealing device |
| CN201596542U (en) * | 2009-12-29 | 2010-10-06 | 雷立猛 | Dynamic centrifugal discharge system of disc type sand grinder |
| CN201783357U (en) * | 2010-09-10 | 2011-04-06 | 浙江德创环保科技有限公司 | Feeding sealing device of wet type ball mill |
| CN201799308U (en) * | 2010-09-21 | 2011-04-20 | 武汉钢铁(集团)公司 | Sealing device of ball mill feeding pipe |
| CN202113921U (en) * | 2011-05-13 | 2012-01-18 | 王万强 | Sealing device for mill feeding pipe |
-
2011
- 2011-05-13 CN CN2011101248689A patent/CN102773146A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02157052A (en) * | 1988-12-07 | 1990-06-15 | Babcock Hitachi Kk | Vertical crusher of rotary classifying type |
| JPH09267047A (en) * | 1996-04-01 | 1997-10-14 | Ishikawajima Harima Heavy Ind Co Ltd | Seal fluid feed device of coal pulverizing mill |
| CN1810380A (en) * | 2006-02-28 | 2006-08-02 | 沈阳重型机械集团有限责任公司 | Feeding pipe and shaft united sealing unit for mill |
| CN200968458Y (en) * | 2006-11-20 | 2007-10-31 | 徐耀祥 | Ball milling helix tube sealing device |
| CN201596542U (en) * | 2009-12-29 | 2010-10-06 | 雷立猛 | Dynamic centrifugal discharge system of disc type sand grinder |
| CN201783357U (en) * | 2010-09-10 | 2011-04-06 | 浙江德创环保科技有限公司 | Feeding sealing device of wet type ball mill |
| CN201799308U (en) * | 2010-09-21 | 2011-04-20 | 武汉钢铁(集团)公司 | Sealing device of ball mill feeding pipe |
| CN202113921U (en) * | 2011-05-13 | 2012-01-18 | 王万强 | Sealing device for mill feeding pipe |
Non-Patent Citations (1)
| Title |
|---|
| 机械工业部仪器仪表工业局统编: "《仪器仪表机械装校工艺学上册》", 30 September 1984 * |
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Application publication date: 20121114 |