CN202215746U - Balance combined type sealing device - Google Patents
Balance combined type sealing device Download PDFInfo
- Publication number
- CN202215746U CN202215746U CN2011203307723U CN201120330772U CN202215746U CN 202215746 U CN202215746 U CN 202215746U CN 2011203307723 U CN2011203307723 U CN 2011203307723U CN 201120330772 U CN201120330772 U CN 201120330772U CN 202215746 U CN202215746 U CN 202215746U
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- packing
- rear end
- seal arrangement
- balance
- gland
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Abstract
The utility model aims at providing a balance combined type sealing device which can play a better sealing role on fine powder or viscosity materials, and comprises a filler sealing assembly arranged on a spindle of mixing equipment, wherein the filler sealing assembly comprises a packing. The balance combined type sealing device is characterized in that an oil ring is arranged in the packing of the sealing filler assembly, and an oil film is formed between the packing and the spindle of the mixing equipment.
Description
Technical field
The utility model relates to the seal arrangement of mixing apparatus, relates in particular to sealer with assembled.
Background technique
Along with the application of mixing apparatus is increasingly extensive, and the variation of every profession and trade material characteristic, also increasingly high for the requirement of sealing configuration.Sealing is the necessary structure of equipment, and traditional seal arrangement is made up of filler or oil sealing usually, and filler is that a kind of seal arrangement that uses is the earliest gone up in industry, is formed by fibrages such as cotton, fiber crops, and friction factor is little, and heat-conducting property is poor; And leaking appears in the size of grain of different material in single filler easily, and particularly the minimum material of grain fineness is more prone to leak; After the filler wearing and tearing, change inconvenient operation when safeguarding, working life is short.Oil sealing sealing mainly by sealing with one deck oil film between main shaft, then leaks but oil film is blocked up easily, crosses to approach then to cause unlubricated friction easily, for regular maintaining certain operation easier is arranged all.Mix in the technology of industry at powder, some mixed material order number is big, and particle is tiny; Traditional sealing configuration does not have the effective seal effect, and reliability is not high, and in some technology; Mixed material is accompanied by annex solution, leaks if amount of liquid greatly also is easy to cause.
Therefore, to the needs of present industry, be necessary to innovate corresponding sealing configuration, it should satisfy effective sealing, prevent to reveal, and has long-term working life simultaneously, maintaining easily characteristics to satisfy the demand of existing industry.Seal arrangement after the improvement can effectively improve the utilization efficiency of equipment, reduces the maintaining time.
The model utility content
The purpose of the utility model is to provide a kind of balance combined seal arrangement, and it can play the better seal effect to fine powder or viscous material.
Balance combined seal arrangement for the mixing apparatus of realizing said purpose; Comprise the packing seal assembly on the main shaft that is arranged on mixing apparatus, the packing seal assembly comprises packing, is characterized in; In the packing of packing seal assembly oil ring is arranged, and and the main shaft of mixing apparatus between be formed with oil film.
Described balance combined seal arrangement, its further characteristics are that the packing middle part is formed with this oil ring.
Described balance combined seal arrangement, its further characteristics are that the oil ring both sides are high water base packing.
Described balance combined seal arrangement, its further characteristics be, is installed with hard chromium plating axle sleeve on the main shaft, is formed with said oil film between packing and the hard chromium plating axle sleeve.
Described balance combined seal arrangement, its further characteristics are that packing comprises high water base packing and gathers the tetrafluoro packing.
Described balance combined seal arrangement, its further characteristics be, comprises that also air-pressure balancing device, air-pressure balancing device provide the air pressure balance chamber, and the air pressure balance chamber is connected to the rear end of packing.
Described balance combined seal arrangement, its further characteristics be, packing is built in the Stuffing box, and Stuffing box is half split type structure.
Described balance combined seal arrangement, its further characteristics are to comprise sealing seat, Stuffing box, Gland, pressure ring, gas-tight gland and the pressing plate in the outside that is enclosed within main shaft; Said packing seal assembly also comprises Stuffing box, sealing seat and Gland, and packing is built between the main shaft of Stuffing box and mixing apparatus, and the front end of Stuffing box is compressed by sealing seat; The rear end of Stuffing box compresses through Gland; Sealing seat is arranged on the main shaft of equipment barrel and inserts on the fitting seat of ingress, and the front end of packing is compressed by the inside groove of sealing seat, and the rear end of packing is compressed by the front end of pressure ring; The rear end of pressure ring is connected on the gas-tight gland; The rear end of gas-tight gland is compressed by pressing plate, and valve is installed on the gas-tight gland, is formed with the air pressure balance chamber between gas-tight gland and the pressing plate; The air pressure balance chamber is connected to the rear end of packing, and the rear end in air pressure balance chamber is provided with oil seal.
Described balance combined seal arrangement, its further characteristics be, the front end of packing is radially compressed towards the inwall of rear-inclined by the inside groove of sealing seat.
Described balance combined seal arrangement, its further characteristics be, the rear end of packing is radially compressed towards the end face of top rake by the rear end of pressure ring.
The beneficial effect of the utility model is:
Use oil ring lubricated in the packing, reducing wear property also on the basis of function with oil sealing to it;
In addition, the outer end of packing makes the outer and interior positive differential pressure that keeps of cylindrical shell of cylindrical shell through pressurized seal, plays seal action;
The outer end seals through the elasticity of Gland adjustment packing and running shaft;
Can store grease in the oil ring, high water base packing is installed in the oil ring both sides, stops passing through of material through one deck oil film that absorbs the grease generation; It is strong to have erosion resistance, good waterproof performance, the characteristics that the life-span is long;
Main shaft and sealing part adopt hard chromium plating axle sleeve, and surfacing is handled, and is suitable for long use; Dismounting when being convenient to wear and tear simultaneously and replacing, the protection main shaft is not influenced by material;
The material of packing seal place adopts high water base packing and gathers the tetrafluoro packing, and to some material, it is strong to have an erosion resistance, good waterproof performance, the characteristics that the life-span is long;
The particular oils ring structure is adopted at the sealing middle part, plays the effect of fluid ring seal, can effectively completely cut off passing through of tiny material, simultaneously packing is played effect lubricated and cooling;
The Stuffing box cavity is double subdivision, is convenient to the dismounting of seal arrangement and the replacing after the packing wearing and tearing.
Description of drawings
Fig. 1 is that the master of balance combined seal arrangement looks sectional view.
Fig. 2 is the schematic representation of the Placement of axle sleeve and machine spindle.
Fig. 3 is the schematic representation of the linkage structure of oil ring and straight-through type lubricating cup.
Fig. 4 is the schematic representation of the sealing seat inner trough structure of built-in packing.
Embodiment
For ease of describing, the implication that uses orientation term " preceding ", " back " below does, before the direction of the material side of equipment is, after the direction in the outside of equipment is.
As shown in Figure 1, sealing seat 2, Stuffing box 3, Gland 5, pressure ring 6, gas-tight gland 7, pressing plate 8 are enclosed within the outside of axle sleeve 6, and axle sleeve 9 is enclosed within on the machine spindle 10, and is as shown in Figure 2, and axle sleeve 9 is fixed on the machine spindle 10 through Cock screw 12.
The packing seal assembly of the balance combined seal arrangement of the utility model comprises packing 11, Stuffing box 3, sealing seat 2, Gland 5.Packing 11 is built between the main shaft 10 of Stuffing box 3 and mixing apparatus, and the front end of Stuffing box 3 is compressed by sealing seat 2, and the rear end of Stuffing box 3 compresses through Gland 5.Sealing seat 2 is arranged on the fitting seat 1 of slotting ingress of main shaft 10 of equipment barrel.Connect through bolton between sealing seat 2, Gland 5, the fitting seat 1.The front end of packing 11 is compressed by the inside groove of sealing seat 2, and the rear end of packing 11 is compressed by the front end of pressure ring 6.
Continuation forms oil ring 4 with reference to Fig. 1 in the middle of the packing 11, oil ring 4 can hold grease.Packing 11 is multi-level packing, is high water base packing in the both sides of oil ring 4, and high water base packing stops passing through of material through absorbing grease generation one deck oil film; It is strong to have erosion resistance; Good waterproof performance, the characteristics that the life-span is long, oil ring 4 itself also plays the effect of fluid ring seal; Can effectively completely cut off fines and pass through, simultaneously packing played lubricated effect.High water base packing can use with gathering the tetrafluoro packing simultaneously, can be directed against some material like this, and it is strong to have an erosion resistance, good waterproof performance, the characteristics that the life-span is grown.
Continuation is with reference to Fig. 1, and the rear end of pressure ring 6 is connected on the gas-tight gland 7, and the rear end of gas-tight gland 7 is compressed by pressing plate 8.Be provided with oil seal 12 between pressing plate 8 and the gas-tight gland 7.Valve 70 is installed on the gas-tight gland 7, is formed with atmospheric pressure cavity 72 between gas-tight gland 7 and the pressing plate 8, atmospheric pressure cavity 72 is connected to the rear end of packing 11.The atmospheric pressure cavity 72 of the rear end of packing 11 can remain on the malleation of 0.05Mpa, makes the outer and interior maintenance of the cylindrical shell positive differential pressure of cylindrical shell, thereby further plays seal action.
Make packing 11 produce compressive strain with Gland 5 through the axial pre tightening force effect that is connected by pressure ring 6; Cause the trend of filler radial expansion simultaneously; And the expansion of packing 11 receives the inhibition on Stuffing box 3 inwalls and axle sleeve 9 surfaces; Make to produce between itself and two surfaces and be close to, the gap is reached the effect of sealing by filling.The valve of installing on the gas-tight gland 7 70 offers the certain malleation of atmospheric pressure cavity 72 through the outside air compressor, stops gas leakages by the oil seal 12 of atmospheric pressure cavity 72 tail ends, and pressure is maintained in the atmospheric pressure cavity 72, prevents that material from passing through.
As shown in Figure 3; The oil ring 4 of Stuffing box 3 replenishes greases through the straight-through type lubricating cup installed above it 14, and oil ring 4 keeps relative position with straight-through type lubricating cup 14, when the pretension of the air pressure that provides at gas-tight gland 7 presses down; The center of center and straight-through type lubricating cup 14 that can make oil ring 4 is infinitely near (state shown in the figure; Because it is approaching that therefore no air pressure do not have), can accurately inject grease in the oil ring 14 when guaranteeing oiling, guarantee that the sealing effect of filler packing 11 is best.
As shown in Figure 4, the cell wall that radially turns forward that sealing seat 2 is equipped with the inside groove of part packing 11 has oblique angle a, and through pretightening force, filler packing 11 is pressed on the inclination cell wall, and makes packing 11 compressive strains be close to the surface of axle sleeve 9 and inclination cell wall.Same, as shown in Figure 1, the front end of pressure ring 6 also has radially towards the face of top rake, and it is pressed in the rear end of packing 11, with the sealability of reinforcing filler packing 11.As shown in Figure 4, O type circle is housed in the axle sleeve 9, O type circle plays seal action between axle sleeve 9 and machine spindle 10, stop that the gap of material axle sleeve 9 and machine spindle is passed through, and arrives efficient sealing effect.Owing to be with axle sleeve 9 on the machine spindle 10, therefore can prevent that machine spindle 10 is worn, and axle sleeve 9 can for convenience detach and timely replacing after being worn.
In addition, Stuffing box 3 is preferably the structure of double subdivision, be convenient to dismantle and the packing wearing and tearing after replacing.
Claims (10)
1. the balance combined seal arrangement of mixing apparatus; Comprise the packing seal assembly on the main shaft that is arranged on mixing apparatus, the packing seal assembly comprises packing, it is characterized in that; In the packing of packing seal assembly oil ring is arranged, and and the main shaft of mixing apparatus between be formed with oil film.
2. balance combined seal arrangement as claimed in claim 1 is characterized in that, the packing middle part is formed with this oil ring.
3. balance combined seal arrangement as claimed in claim 1 is characterized in that, the oil ring both sides are high water base packing.
4. balance combined seal arrangement as claimed in claim 1 is characterized in that, is installed with hard chromium plating axle sleeve on the main shaft, is formed with said oil film between packing and the hard chromium plating axle sleeve.
5. balance combined seal arrangement as claimed in claim 1 is characterized in that, packing comprises high water base packing and gathers the tetrafluoro packing.
6. balance combined seal arrangement as claimed in claim 1 is characterized in that, comprises that also air-pressure balancing device, air-pressure balancing device provide the air pressure balance chamber, and the air pressure balance chamber is connected to the rear end of packing.
7. balance combined seal arrangement as claimed in claim 1 is characterized in that packing is built in the Stuffing box, and Stuffing box is half split type structure.
8. balance combined seal arrangement as claimed in claim 1 is characterized in that, comprises sealing seat, Stuffing box, Gland, pressure ring, gas-tight gland and the pressing plate in the outside that is enclosed within main shaft; Said packing seal assembly also comprises Stuffing box, sealing seat and Gland, and packing is built between the main shaft of Stuffing box and mixing apparatus, and the front end of Stuffing box is compressed by sealing seat; The rear end of Stuffing box compresses through Gland; Sealing seat is arranged on the main shaft of equipment barrel and inserts on the fitting seat of ingress, and the front end of packing is compressed by the inside groove of sealing seat, and the rear end of packing is compressed by the front end of pressure ring; The rear end of pressure ring is connected on the gas-tight gland; The rear end of gas-tight gland is compressed by pressing plate, and valve is installed on the gas-tight gland, is formed with the air pressure balance chamber between gas-tight gland and the pressing plate; The air pressure balance chamber is connected to the rear end of packing, and the rear end in air pressure balance chamber is provided with oil seal.
9. balance combined seal arrangement as claimed in claim 8 is characterized in that, the front end of packing is radially compressed towards the inwall of rear-inclined by the inside groove of sealing seat.
10. balance combined seal arrangement as claimed in claim 9 is characterized in that, the rear end of packing is radially compressed towards the end face of top rake by the rear end of pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203307723U CN202215746U (en) | 2011-09-05 | 2011-09-05 | Balance combined type sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203307723U CN202215746U (en) | 2011-09-05 | 2011-09-05 | Balance combined type sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215746U true CN202215746U (en) | 2012-05-09 |
Family
ID=46015002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203307723U Expired - Lifetime CN202215746U (en) | 2011-09-05 | 2011-09-05 | Balance combined type sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215746U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016741A (en) * | 2012-12-18 | 2013-04-03 | 陆泽鹏 | Mixing machine shaft end sealing device |
| CN103883736A (en) * | 2014-03-03 | 2014-06-25 | 浙江长城减速机有限公司 | Fluid pressure packing seal device of rotary shaft |
| CN106763796A (en) * | 2017-03-21 | 2017-05-31 | 徐州徐工施维英机械有限公司 | A kind of dry-mixed mortar stirrer axle end sealing device |
| CN106969147A (en) * | 2017-03-31 | 2017-07-21 | 唐山中浩化工有限公司 | A kind of source of the gas gland-type sealing device |
| CN107191594A (en) * | 2017-07-07 | 2017-09-22 | 南京恒兴达机电设备制造有限公司 | underwater sealing device |
| CN109139427A (en) * | 2018-07-25 | 2019-01-04 | 安徽华尔泰化工股份有限公司 | A kind of stuffing box compressor cylinder base easy to disassemble |
| CN112747118A (en) * | 2020-12-30 | 2021-05-04 | 中南大学 | Shaft end sealing device of powder material mixing equipment and mounting method thereof |
-
2011
- 2011-09-05 CN CN2011203307723U patent/CN202215746U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016741A (en) * | 2012-12-18 | 2013-04-03 | 陆泽鹏 | Mixing machine shaft end sealing device |
| CN103883736A (en) * | 2014-03-03 | 2014-06-25 | 浙江长城减速机有限公司 | Fluid pressure packing seal device of rotary shaft |
| CN106763796A (en) * | 2017-03-21 | 2017-05-31 | 徐州徐工施维英机械有限公司 | A kind of dry-mixed mortar stirrer axle end sealing device |
| CN106969147A (en) * | 2017-03-31 | 2017-07-21 | 唐山中浩化工有限公司 | A kind of source of the gas gland-type sealing device |
| CN107191594A (en) * | 2017-07-07 | 2017-09-22 | 南京恒兴达机电设备制造有限公司 | underwater sealing device |
| CN109139427A (en) * | 2018-07-25 | 2019-01-04 | 安徽华尔泰化工股份有限公司 | A kind of stuffing box compressor cylinder base easy to disassemble |
| CN112747118A (en) * | 2020-12-30 | 2021-05-04 | 中南大学 | Shaft end sealing device of powder material mixing equipment and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
|
| CX01 | Expiry of patent term |