CN217491073U - Device for solving air leakage and powder leakage of hydraulic pull rod of medium-speed coal mill - Google Patents
Device for solving air leakage and powder leakage of hydraulic pull rod of medium-speed coal mill Download PDFInfo
- Publication number
- CN217491073U CN217491073U CN202221142923.7U CN202221142923U CN217491073U CN 217491073 U CN217491073 U CN 217491073U CN 202221142923 U CN202221142923 U CN 202221142923U CN 217491073 U CN217491073 U CN 217491073U
- Authority
- CN
- China
- Prior art keywords
- sealing
- culvert
- sealed
- pull rod
- coal mill
- 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.)
- Active
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a solve medium speed pulverizer hydraulic pressure pull rod and leak device of wind, hourglass powder belongs to medium speed pulverizer hydraulic pressure pull rod technical field, including the packing box, still include: the sealing culvert is fixedly connected to the lower end of the stuffing box, the sealing culvert and the stuffing box are sleeved at the lower end of the pull ring, sealing stuffing is arranged on the upper side inside the sealing culvert, a sealing internal pressure sleeve is arranged on the lower side of the sealing stuffing, the sealing internal pressure sleeve is sleeved on the lower side inside the sealing culvert, bolt pressing lugs are fixedly connected to two ends of the sealing internal pressure sleeve, pressing bolts are detachably connected to the bolt pressing lugs, and the upper ends of the pressing bolts and the sealing culvert are detachably connected through nuts; the utility model discloses an external contact is sealed, and simple structure, transformation work load are little, the expense is low, sealed effect is obvious, long service life when slightly leaking, through adjustment clamp bolt, can eliminate to leak out.
Description
Technical Field
The utility model relates to a medium speed pulverizer hydraulic pressure pull rod technical field especially relates to a solve medium speed pulverizer hydraulic pressure pull rod and leak the device of wind, hourglass powder.
Background
At present, MPS150 type medium speed grinds hydraulic pressure pull rod, main pull rod is sealed to be the polytetrafluoroethylene circle, because the material is hard, the laminating degree is relatively poor, can not combine closely with the pull rod, it is relatively poor to seal the effect, cause the pull rod to leak out not leak powder during normal use, long-time operation, the pull rod is relative reciprocating motion with polytetrafluoroethylene seal ring, cause sealed wearing and tearing, the sealed wind of aggravation leaks outward, the volume of leaking increases to the certain degree outward when sealed wind, the sealed culvert room wind pressure of pull rod descends, when being less than mill interior wind pressure, sealed complete failure, cause the pull rod to leak powder.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the sealing fitting degree of the hydraulic pull rod of the medium-speed mill is poor, and the hydraulic pull rod cannot be tightly fitted with the pull rod, so that the air leakage and the powder leakage of the pull rod are caused in the use process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a solve medium speed pulverizer hydraulic pressure pull rod and leak wind, leak the device of powder, includes the packing box, still includes: sealed culvert, sealed culvert fixed connection is at the lower extreme of packing box, sealed culvert cup joints the lower extreme at the pull ring with the packing box, the inside upside of sealed culvert is provided with gland packing, the gland packing downside is provided with sealed interior pressure cover, sealed interior pressure cover cup joints the inside downside at sealed culvert, the sealed interior pressure cover both ends fixedly connected with bolt pressure ear of pressing, bolt pressure ear can be dismantled and be connected with clamp bolt, the clamp bolt upper end and sealed culvert use the nut can dismantle the connection.
For better sealed pull ring space, preferably, sealed culvert comprises sealed culvert piece two, and sealed culvert piece one is constituteed, sealed culvert piece one and the equal fixedly connected with connecting bolt hole in sealed culvert piece two both ends, sealed culvert piece one is symmetrical with the crosscut axis of the relative pull ring of sealed culvert piece two, all be provided with the filler on sealed culvert piece one and the sealed culvert piece two and compress tightly the spiral hole, the clamp bolt upper end is passed the filler and is compressed tightly the spiral hole and pass through the nut and can dismantle the connection with sealed culvert.
In order to make the sleeve joint with the internal pressure sleeve more firm, preferably, the diameter of the inscribed circle of the sealing culvert is larger than that of the circumscribed circle of the convex end on the upper side of the sealing internal pressure sleeve.
Preferably, the stuffing box upper end fixedly connected with aerifys the cavity, aerify the sealed nitrogen gas import of cavity right side fixedly connected with, aerify the inside installation cover that is provided with of cavity upside, the installation cover cup joints on the outer wall of pull ring, installation cover upside is provided with joint bearing two, the installation cover downside is provided with joint bearing one.
Preferably, a tripod is detachably connected to the upper side of the pull ring.
Preferably, the pull ring is arranged on a coal mill casing which is sleeved on the outer wall of the air inflation cavity.
Compared with the prior art, the utility model provides a solve medium speed pulverizer hydraulic pressure pull rod and leak wind, leak the device of powder possesses following beneficial effect:
1. the device adopts external contact type sealing, has simple structure, small modification workload, low cost, obvious sealing effect and long service life, and can eliminate air leakage by adjusting the compression bolt when slight leakage occurs.
2. When the device is sealed to lose efficacy, only need change the sealing filler, it is little, the maintenance cost is low to maintain the work load, this practicality can apply to the medium speed mill of the same type in a flexible way, can finely tune the size according to different equipment sizes and process.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses an at the sealed culvert of packing box bottom welding, and the pull ring forms sealed culvert room, installs graphite packing filler additional in sealed culvert room, and the packing is installed the back that finishes additional, and it is inside to pack into sealed culvert inside to seal the internal pressure cover, uses the bolt to compress tightly packing, forms the contact seal, and the packing is through compressing the back, closely combines with the pull ring, forms tight sealed face to cut off the outer hourglass of sealed wind, solve the pull rod and leak out the wind, leak the powder problem.
Drawings
Fig. 1 is a schematic cross-sectional view of the three-dimensional structure of the operation of the hydraulic pull rod of the medium speed coal mill for solving the problems of air leakage and powder leakage of the hydraulic pull rod of the medium speed coal mill;
fig. 2 is a schematic cross-sectional structural view of a device for solving the air leakage and powder leakage of the hydraulic pull rod of the medium speed coal mill provided by the utility model;
fig. 3 is a schematic view of a three-dimensional structure of a sealing culvert of a device for solving the problems of air leakage and powder leakage of a hydraulic pull rod of a medium-speed coal mill, which is provided by the utility model;
fig. 4 is the utility model provides a solve medium speed pulverizer hydraulic pressure pull rod and leak the sealed interior pressure cover structural schematic diagram of the device picture of wind, hourglass powder.
In the figure: 1. a tripod; 2. a pull ring; 3. a second knuckle bearing; 4. a first joint bearing; 5. an inflatable cavity; 6. sealing the nitrogen inlet; 7. a stuffing box; 8. installing a sleeve; 9. a coal mill housing; 10. sealing the culvert; 11. the spiral hole is compacted by the filler; 12. sealing a culvert piece I; 13. connecting bolt holes; 14. a second sealing culvert part; 15. sealing the inner pressing sleeve; 16. the bolt tightly presses the lug; 17. sealing the filler; 18. and pressing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-4, a device for solving the problems of air leakage and powder leakage of a hydraulic pull rod of a medium speed coal mill comprises a stuffing box 7 and further comprises: the sealing culvert 10 is fixedly connected to the lower end of the stuffing box 7, the sealing culvert 10 and the stuffing box 7 are sleeved at the lower end of the pull ring 2, the sealing stuffing 17 is arranged on the upper side inside the sealing culvert 10, the sealing inner pressing sleeve 15 is arranged on the lower side of the sealing stuffing 17, the sealing inner pressing sleeve 15 is sleeved on the lower side inside the sealing culvert 10, bolt pressing lugs 16 are fixedly connected to two ends of the sealing inner pressing sleeve 15, the bolt pressing lugs 16 are detachably connected with pressing bolts 18, and the upper ends of the pressing bolts 18 are detachably connected with the sealing culvert 10 through nuts;
in a specific operation process, firstly, a stuffing box 7 is sleeved on the outer wall of a pull ring 2, the upper end of the stuffing box 7 is fixedly connected with an inflating cavity 5, the right side of the inflating cavity 5 is fixedly connected with a sealed nitrogen inlet 6, an installation sleeve 8 is arranged inside the upper side of the inflating cavity 5, the installation sleeve 8 is sleeved on the outer wall of the pull ring 2, a joint bearing II 3 is arranged on the upper side of the installation sleeve 8, a joint bearing I4 is arranged on the lower side of the installation sleeve 8, a triangular frame 1 is detachably connected to the upper side of the pull ring 2 by using a bolt, the pull ring 2 is arranged on a coal mill shell 9, and the coal mill shell 9 is sleeved on the outer wall of the inflating cavity 5;
the sealing culvert 10 is fixedly welded at the lower end of the stuffing box 7, the sealing culvert 10 and the stuffing box 7 are sleeved at the lower end of the pull ring 2, the sealing stuffing 17 is arranged on the upper side inside the sealing culvert 10, the sealing inner pressing sleeve 15 is arranged on the lower side of the sealing stuffing 17, the sealing inner pressing sleeve 15 is sleeved at the lower side inside the sealing culvert 10, bolt pressing lugs 16 are fixedly connected at two ends of the sealing inner pressing sleeve 15, the bolt pressing lugs 16 are detachably connected with pressing bolts 18, the upper ends of the pressing bolts 18 are detachably connected with the sealing culvert 10 by nuts, and the diameter of an inscribed circle of the sealing culvert 10 is larger than that of an circumscribed circle of a protruding end on the upper side of the sealing inner pressing sleeve 15;
the sealing culvert 10 consists of a sealing culvert part II 14 and a sealing culvert part I12, both ends of the sealing culvert part I12 and the sealing culvert part II 14 are fixedly connected with connecting bolt holes 13, the transverse cutting central axis of the sealing culvert part I12 and the sealing culvert part II 14 relative to the pull ring 2 is symmetrical, the rear side of the middle part of the sealing culvert part I12 is fixedly connected with a packing pressing spiral hole 11, the rear side of the middle part of the sealing culvert part II 14 is fixedly connected with the packing pressing spiral hole 11, and the upper end of a pressing bolt 18 penetrates through the packing pressing spiral hole 11 and is detachably connected with the sealing culvert 10 through a nut;
at the device during operation, through at the sealed culvert 10 of 7 bottom welding of packing box, form sealed culvert 10 room with pull ring 2, install graphite packing filler additional in sealed culvert 10 room, the packing is installed the back that finishes additional, will seal inside the pressure sleeve 15 packs into sealed culvert 10 inside, use compression bolt 18 to compress tightly packing seal 17, form the contact seal, seal 17 after the compression, closely combine with pull ring 2, form tight sealed face, thereby cut off the outer hourglass of sealed wind, solve the pull rod and leak out the wind, leak whitewashed problem.
The utility model discloses an adopt external contact sealed, simple structure, little, the expense of transformation work load is low, sealed effect is obvious, long service life, when slightly leaking, adjustment clamp bolt 18 can eliminate to leak out.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a solve medium speed pulverizer hydraulic pressure pull rod and leak out wind, leak the device of powder, includes packing box (7), its characterized in that still includes: sealed culvert (10), sealed culvert (10) fixed connection is at the lower extreme of packing box (7), sealed culvert (10) and packing box (7) cup joint the lower extreme in pull ring (2), the inside upside of sealed culvert (10) is provided with gland packing (17), gland packing (17) downside is provided with sealed interior pressure cover (15), the inside downside at sealed culvert (10) is cup jointed in sealed interior pressure cover (15), sealed interior pressure cover (15) both ends fixedly connected with bolt pressure ear (16), bolt pressure ear (16) can be dismantled and be connected with clamp bolt (18), clamp bolt (18) upper end and sealed culvert (10) use the nut can dismantle the connection.
2. The device for solving the air leakage and the powder leakage of the hydraulic pull rod of the medium speed coal mill according to claim 1 is characterized in that the sealing culvert (10) consists of a sealing culvert part II (14) and a sealing culvert part I (12), both ends of the sealing culvert part I (12) and the sealing culvert part II (14) are fixedly connected with connecting bolt holes (13), the sealing culvert part I (12) and the sealing culvert part II (14) are symmetrical relative to the transverse cutting central axis of the pull ring (2), the sealing culvert part I (12) and the sealing culvert part II (14) are respectively provided with a packing pressing spiral hole (11), and the upper end of the pressing bolt (18) passes through the packing pressing spiral hole (11) and is detachably connected with the sealing culvert (10) through a nut.
3. The device for solving the air leakage and the powder leakage of the hydraulic pull rod of the medium speed coal mill is characterized in that the diameter of an inscribed circle of the sealing culvert (10) is larger than the diameter of an circumscribed circle of a convex end on the upper side of the sealing inner pressing sleeve (15).
4. The device for solving the air leakage and the powder leakage of the hydraulic pull rod of the medium speed coal mill according to claim 1 is characterized in that an air inflation cavity (5) is fixedly connected to the upper end of the packing box (7), a sealed nitrogen inlet (6) is fixedly connected to the right side of the air inflation cavity (5), an installation sleeve (8) is arranged inside the upper side of the air inflation cavity (5), the installation sleeve (8) is sleeved on the outer wall of the pull ring (2), a joint bearing II (3) is arranged on the upper side of the installation sleeve (8), and a joint bearing I (4) is arranged on the lower side of the installation sleeve (8).
5. The device for solving the air leakage and the powder leakage of the hydraulic pull rod of the medium speed coal mill according to claim 4 is characterized in that a tripod (1) is detachably connected to the upper side of the pull ring (2).
6. The device for solving the air leakage and the powder leakage of the hydraulic pull rod of the medium speed coal mill according to claim 4 is characterized in that the pull ring (2) is arranged on a shell (9) of the coal mill, and the shell (9) of the coal mill is sleeved on the outer wall of the air charging cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221142923.7U CN217491073U (en) | 2022-05-13 | 2022-05-13 | Device for solving air leakage and powder leakage of hydraulic pull rod of medium-speed coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221142923.7U CN217491073U (en) | 2022-05-13 | 2022-05-13 | Device for solving air leakage and powder leakage of hydraulic pull rod of medium-speed coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217491073U true CN217491073U (en) | 2022-09-27 |
Family
ID=83353655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221142923.7U Active CN217491073U (en) | 2022-05-13 | 2022-05-13 | Device for solving air leakage and powder leakage of hydraulic pull rod of medium-speed coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217491073U (en) |
-
2022
- 2022-05-13 CN CN202221142923.7U patent/CN217491073U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217491073U (en) | Device for solving air leakage and powder leakage of hydraulic pull rod of medium-speed coal mill | |
| CN107394086B (en) | Explosion-proof balance valve applied to battery cell module | |
| CN207648137U (en) | Water wheels machine overhauling sealing device | |
| CN2336172Y (en) | Leakless packing seal structure of valve | |
| CN215806382U (en) | Lug type double-semi-axis middle-line type soft sealing butterfly valve | |
| CN204829010U (en) | Screw thread compresses tightly clamp formula coupling | |
| CN105909909B (en) | A kind of pipeline packaging type whirl compensator | |
| CN216279245U (en) | High-sealing combined oil seal of ball screw pair | |
| CN218274183U (en) | Diaphragm internal pressing C-shaped frame structure of transformer closed oil storage cabinet | |
| CN205745828U (en) | Pipeline whirl compensator | |
| CN218107099U (en) | Compressed air pipeline filter | |
| CN219606013U (en) | High-pressure combined sealing ring | |
| CN216344045U (en) | Dustproof hard seal ball valve | |
| CN211738329U (en) | Sealing structure for vacuum pump | |
| CN218883007U (en) | Filler sealing device convenient to adjust | |
| CN219610661U (en) | Battery and battery pressure release structure | |
| CN220803673U (en) | Jet mill with compressed air pressure stabilizing function | |
| CN212829174U (en) | Driving shaft for filling | |
| CN213660892U (en) | Cable fixing device for electrical construction | |
| CN217355561U (en) | Sealing structure of bearing seat at tail part of elevator | |
| CN220583698U (en) | Hydraulic test tool for narrow sealing surface booster shell | |
| CN211259639U (en) | Telescopic packing gland | |
| CN210034444U (en) | Novel flue gas valve | |
| CN218510299U (en) | Corrugated pipe stop valve | |
| CN214838385U (en) | Sealing device at lower air seal support bearing of air preheater shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |