CN202483936U - Wedge embedded sealing device - Google Patents
Wedge embedded sealing device Download PDFInfo
- Publication number
- CN202483936U CN202483936U CN2012200539649U CN201220053964U CN202483936U CN 202483936 U CN202483936 U CN 202483936U CN 2012200539649 U CN2012200539649 U CN 2012200539649U CN 201220053964 U CN201220053964 U CN 201220053964U CN 202483936 U CN202483936 U CN 202483936U
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- Prior art keywords
- filler
- wedge
- wedge embedding
- cone
- stuffing
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- Expired - Fee Related
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Abstract
The utility model relates to a wedge embedded sealing device, which adopts a wedge embedded sealing stuffing group formed by wedge embedded conical stuffing on the two sides, I-shaped stuffing in the middle and flexible stuffing in a stuffing box, and is sequentially connected with a pump pressure flange cover, a pressure flange cover fastening bolt and a nut. When the pump operates, the nut on the pressure flange cover is gradually adjusted, so as to enable the conical stuffing to be inserted into the I-shaped stuffing, as a result the outer-extended surface of the I-shaped stuffing is expanded to form a water retaining ring and be closely attached to the surface of the pump shaft and the inner wall of the stuffing box, and consequently the water in the pump chamber is sealed in the wedge embedded sealing stuffing group. The utility model has the advantages that the wedge embedded sealing device has simple structure, high sealing performance and abrasion resistance, is convenient to mount, can save the working hours, increases the operational cycle of the water pump, and prolong the service life of the pump shaft.
Description
Technical field
The utility model relates to the seal arrangement that applies to pump seal, is particularly useful for the sealing of the higher water pump spindle of feed pressure.
Background technique
The stuffing box packing that at present general middle and high water pump uses mainly is to seal stuffing box packing with metal packing and mechanical seal as axle.Behind starting of pump station, filler plays seal action between pump chamber and stuffing box, makes the interior water of pump not along axial outflow.
As everyone knows, the stuffing box packing of using at present is because of the reason of material self property, along with the rotation of water pump; Pump shaft constantly weares and teares to filler, and the inboard wear extent of filler strengthens, and is gradually big to the gap that makes stuffing box packing and pump shaft; Simultaneously again owing to the mechanical admixture in the water overflows; Aggravated the wearing and tearing of stuffing box packing and pump shaft, under abominable water quality, it is more outstanding that the situation that stuffing box packing and pump shaft are worn seems.Slurry pump, deep-well pump as use in the mine all can quicken the wearing and tearing of pump shaft because of the wearing and tearing of filler.After pump shaft and the stuffing box packing wearing and tearing, the water that spills can also get in the bearing chamber of pump, causes the damage of emulsification of lubricant and bearing.We can say and since the existence of filler just in use at present problem, not only shortened the service cycle of water pump, influenced the working life of pump shaft, increased the maintenance number of times, also increased cost of production simultaneously.
The model utility content
The purpose of the utility model be solve easy to wear in the existing technology, leak, pump shaft rapid wear and short problem of operation period, provide a kind of not overheated, water-tight, pump shaft and filler few wedge embedding formula seal arrangement that weares and teares.
The technological scheme of the utility model is: a kind of wedge embedding formula seal arrangement; Comprise pump housing hydroecium, stuffing box, wedge embedding formula stuffing box packing group, pump housing pressing flange disk, clamping bolt, tightening nut, said wedge embedding formula stuffing box packing group comprises wedge embedding cone filler, I-shaped body filler and flexible filler.
Preferably, said wedge embedding cone filler is strip, cuts out and surround annulus by the pump shaft circumference, cuts out mouth, and filler one side is the plane, and the another side becomes protruding trapezoidal cone.
Preferably, said I-shaped body filler is strip, cuts out and surround annulus by the pump shaft circumference, cuts out mouth, and the filler bi-side concave, and form recessed trapezoidal; I-shaped body filler outer face is the plane, and the limit, outer is at right angles trapezoidal.
Preferably, wedge embedding formula stuffing box packing group both sides are wedge embedding cone filler, and the centre is an I-shaped body filler.
Preferably, the recessed trapezoidal size of I-shaped body filler is less than the size of the protruding trapezoidal cone of wedge embedding cone filler;
Preferably, said flexible filler is strip, is installed in wedge embedding cone filler and inserts the recessed trapezoidal interior position, tiny space that forms afterwards of I-shaped body filler.
Preferably, comprise at least one group of wedge embedding formula stuffing box packing group.
The beneficial effect of the utility model is: through disposable filling stuffing box packing, again after the tight power of adjustment pressing flange disk upper cap nut, it is water-tight, not overheated that the filler place can accomplish behind the starting mode of pump; Because what wedge embedding formula stuffing box packing group adopted is the selflubricating material, so the frictional force between this filler and the pump shaft is minimum, and installation, easy to maintenance, can prolong the working life of pump shaft, reduce the maintenance number of times, reduce production costs.
Description of drawings
Fig. 1 is the structural representation of the utility model wedge embedding formula seal arrangement;
Fig. 2 is the structural representation of the utility model wedge embedding formula stuffing box packing group;
Fig. 3 is the generalized section of the utility model wedge embedding cone filler;
Fig. 4 is the structural representation of the utility model wedge embedding cone filler;
Fig. 5 is the generalized section of the utility model I-shaped body filler;
Fig. 6 is the structural representation of the utility model I-shaped body filler;
Fig. 7 is the generalized section of the utility model flexible filler;
Fig. 8 is the structural representation of the utility model flexible filler;
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
A kind of wedge embedding formula seal arrangement comprises pump housing hydroecium 1, stuffing box 2, wedge embedding formula stuffing box packing group 3, pump housing pressing flange disk 4, clamping bolt 5, tightening nut 6, and said wedge embedding formula stuffing box packing group comprises wedge embedding cone filler 7, I-shaped body filler 8 and flexible filler 9.Wedge embedding cone filler and I-shaped body filler material therefor are teflon.
Said wedge embedding cone filler 7 is strip, cuts out and surround annulus by the circumference of pump shaft 12, cuts out mouth, and wedge embedding cone filler 7 one sides are planes, and the another side becomes protruding trapezoidal cone 71, is made up of two wedge embedding cone fillers during installation, and two cones are inside.
Said I-shaped body filler 8 is strip, cuts out and surround annulus by the circumference of pump shaft 12, cuts out mouth, and the filler bi-side concave, and forms recessed trapezoidal 81; I-shaped body filler outer face 82 is the plane, limit, outer rectangular trapezoidal 83.
The wedge embedding formula of in stuffing box 2, packing into stuffing box packing group 3; The both sides of wedge embedding formula stuffing box packing group are wedge embedding cone filler 7; The centre is an I-shaped body filler 8; The trapezoidal cone 71 of wedge embedding cone filler 7 insert I-shaped body fillers 8 both sides recessed trapezoidal 81 in, under the active force of screwing of tightening nut 6 on the pump housing pressing flange disk 4, the trapezoidal cone 71 of inserting I-shaped body filler 8 both sides recessed trapezoidal 81 with I-shaped body filler outer face 82 to stuffing box wall and pump shaft rising formation water holding ring.For guaranteeing that the filler group reaches water-tight, not overheated behind pump operation, the gap that the outdoor end face of pressing flange disk end face and stuffing box leaves is the 5-8 millimeter, so that guarantee that through the degree of tightness power of adjustment tightening nut the filler group is water-tight, not overheated.
For making I-shaped body filler outer face form good water holding ring and tightly overlaying on the stuffing box wall and the pump shaft surface; Recessed trapezoidal 81 the size of I-shaped body filler is less than the size of the protruding trapezoidal cone 71 of wedge embedding cone filler; The conehead thickness of wedge embedding formula cone is the 3-5 millimeter; After forming water holding ring in the trapezoidal cone 71 insertion I-shaped body fillers of wedge embedding formula, around wedge embedding cone filler and I-shaped body filler junction, can form certain tiny space 91, for making the water leakage phenomenon that do not produce in service of this space 91 at pump; Adopt to add the method for flexible filler 9 in it, formed space is tamped.
It is shaped as strip flexible filler 9, has that ductility is good, plasticity is good, the characteristic of selflubricating.During installation with flexible filler 9 by the consumption intercepting of practice sites and wind; Its filler distortion under the effect of external force; Well with the tiny space 91 that can form around wedge embedding cone filler and the I-shaped body filler junction, and wedge embedding cone and I-shaped body filler are cut out mouth 92 places and are tamped, cover.
Of Fig. 4, wedge embedding cone filler 7 is cut out mouthful 92 places with I-shaped body filler 8, owing to be that manual work is cut out to form cutting out mouthful 92 places and can be left certain fine gap, adopts flexible filler 9 to cover can to eliminate this slit to reach the watertight purpose of stuffing box packing group.
When the filler group is installed; Earlier the circumferential length of wedge embedding cone filler 7 and I-shaped body filler body 8 is cut out (forbidding using hacksaw) by the actual size of pump shaft 12 circumference, the wedge embedding cone filler 7 of the wedge embedding cone of packing into successively then filler 7, flexible filler 9, I-shaped body filler 8, flexible filler 9 and opposite side.Pack into the purpose of flexible filler 9; Be that circumferential length because of wedge embedding cone filler 7 and I-shaped body filler 8 is that manual work is cut out and formed; Cut out the groove place and can leave certain slit, insert the tiny space that recessed trapezoidal position 81, I-shaped body filler both sides also can form in wedge embedding cone 71 simultaneously, the slit of this existence and tiny space can be behind starting of pump station; Press water in the pump housing can axially flow out along the slit of this existence; Therefore adopt flexible filler (gain the national patent, the patent No.: 200410074469.6), it is cut out to connect and stitches and tiny space purpose to reach sealing in companys of cutting out seam crossing and above-mentioned tiny space.
Wedge embedding formula stuffing box packing group is to be one group by two wedge embedding cone fillers and an I-shaped body filler to combine; When as installed, several groups to be installed usually, therefore several water holding rings can be produced, behind starting of pump station; The upper cap nut of adjustment pressing flange disk; Insert I-shaped body filler body in the tight power hyposphene embedding cone of nut and make its outer demi-inflation form water holding ring, water holding ring can tightly apply in pump shaft surface and stuffing box wall, and the water that flows out vertically from pump chamber simultaneously also can produce certain pressure on the water holding ring surface towards hydroecium; And the pressure of water senior engineer's font filler is external big more along the demi-inflation coefficient more; Under the pressure acting in conjunction of the tight power of nut and water, live the water seal of flowing out vertically towards the water holding ring of hydroecium from pump chamber, reach a watertight purpose in envelope place.
The above is merely the utility model preferred implementation, is not the practical range that is used for limiting the utility model, and the equivalence of in the protection domain of the utility model, being done in every case changes and modifies, and all should think to have fallen in the protection domain of the utility model.
Claims (7)
1. wedge embedding formula seal arrangement; Comprise pump housing hydroecium, stuffing box, wedge embedding formula stuffing box packing group, pump housing pressing flange disk, clamping bolt, tightening nut; It is characterized in that said wedge embedding formula stuffing box packing group comprises wedge embedding cone filler, I-shaped body filler and flexible filler.
2. wedge embedding formula seal arrangement according to claim 1 is characterized in that said wedge embedding cone filler is strip, cuts out and surround annulus by the pump shaft circumference, cuts out mouth, and filler one side is the plane, and the another side becomes protruding trapezoidal cone.
3. wedge embedding formula seal arrangement according to claim 1 is characterized in that said I-shaped body filler is strip, cuts out and surround annulus by the pump shaft circumference, cuts out mouth, and the filler bi-side concave, and form recessed trapezoidal; I-shaped body filler outer face is the plane, and the limit, outer is at right angles trapezoidal.
4. according to claim 2 or 3 described wedge embedding formula seal arrangements, it is characterized in that wedge embedding formula stuffing box packing group both sides are wedge embedding cone filler, the centre is an I-shaped body filler.
5. wedge embedding formula seal arrangement according to claim 4 is characterized in that the size of the recessed trapezoidal size of I-shaped body filler less than the protruding trapezoidal cone of wedge embedding cone filler.
6. wedge embedding formula seal arrangement according to claim 1 is characterized in that said flexible filler is strip, is installed in wedge embedding cone filler and inserts the recessed trapezoidal interior position, tiny space that forms afterwards of I-shaped body filler.
7. wedge embedding formula seal arrangement according to claim 1 is characterized in that comprising at least one group of wedge embedding formula stuffing box packing group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200539649U CN202483936U (en) | 2012-02-17 | 2012-02-17 | Wedge embedded sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200539649U CN202483936U (en) | 2012-02-17 | 2012-02-17 | Wedge embedded sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483936U true CN202483936U (en) | 2012-10-10 |
Family
ID=46958362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200539649U Expired - Fee Related CN202483936U (en) | 2012-02-17 | 2012-02-17 | Wedge embedded sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135025A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Seal packing for rotary valve and end cover |
| CN112943681A (en) * | 2021-03-10 | 2021-06-11 | 浦江奈德丽工业设计有限公司 | Water pump with many connectors |
-
2012
- 2012-02-17 CN CN2012200539649U patent/CN202483936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135025A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Seal packing for rotary valve and end cover |
| CN112943681A (en) * | 2021-03-10 | 2021-06-11 | 浦江奈德丽工业设计有限公司 | Water pump with many connectors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160217 |