CN2589704Y - Combined stuffing sealing device of industrial pump - Google Patents
Combined stuffing sealing device of industrial pump Download PDFInfo
- Publication number
- CN2589704Y CN2589704Y CN 02206732 CN02206732U CN2589704Y CN 2589704 Y CN2589704 Y CN 2589704Y CN 02206732 CN02206732 CN 02206732 CN 02206732 U CN02206732 U CN 02206732U CN 2589704 Y CN2589704 Y CN 2589704Y
- Authority
- CN
- China
- Prior art keywords
- pump
- stuffing
- packing cavity
- filler
- bolt
- 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 - Fee Related
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- Sealing Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a combined stuffing sealing device which has the advantages of dielectric leakage prevention of industrial pumps, simple structure, low cost and no need of maintenance. The utility model is formed by the way that a stuffing box and a pump shaft of the pump are respectively provided with an O-shaped ring (5), a stuffing chamber sleeve (6), a stuffing gland (4), a gland bolt (3), a spring (2) and a bolt (1) which are orderly assembled. The spring and the bolt can produce pretightening force (A) on the stuffing chamber sleeve to cause media in the pump not to leakage to realize sealing under ordinary pressure. When the pump runs, medium outward leakage force (B) is produced in the pump, and has the same direction as the pretightening force. Both the medium outward leakage force and the pretightening force can produce extrusion force to the stuffing to cause the stuffing to simultaneously realize self-sealing at the time of elastic deformation.
Description
Affiliated technical field
The utility model relates to the seal arrangement that industrial pump prevents dielectric leakage, especially can guarantee the stuffing seal that transh pump does not leak.
Background technique
At present, known industrial pump adopts traditional filler to realize sealing.Mainly be by regulating Gland, gland nut to pretightening force of filler, make it to be adjacent to, playing seal action with axle and Stuffing box inwall.The pretightening force of this form sealing is given in advance, and this power can not be along with the change in pressure of sealing medium.Its consequence will produce excessive sealing or sealing is not enough.The sealing deficiency will produce leakage, and sealing excessively makes filler produce plastic deformation, and the friction of sealing part strengthens; filler is to axle or axle sleeve serious wear, and the mechanical efficiency of pump reduces, and the process wearing and tearing will produce the slit and leak; it is frequent to cause shutdown to change filler, the operating cost height, and facility environment is poor.
Summary of the invention
The axle sleeve serious wear that produces in order to overcome constant pretightening force of conventional filler sealing and the filler plastic deformation in the sealing, the serious phenomenon of leaking of medium in the pump, the utility model provides a kind of combined stuffing seal arrangement.The sealing device not only can be automatically according to the sealed medium change in pressure, and has guaranteed that the filler in the sealing has compensation ability, and enough lubricities and flexible packing seal structure.
The technical scheme in the invention for solving the technical problem is: with the combined stuffing seal arrangement that O type circle, packing cavity cover, filler, Gland, gland bolt, bolt, spring are formed, assembled in sequence is on pump shaft and Stuffing box.When pump stopped, spring, bolt put at packing cavity and produce a pretightening force, made the interior medium of pump not leak and realize sealing under normal pressure.When pump operation, the medium that leaks in the pump can produce a power, and this power is identical with the pretightening force direction, and these two power produce extruding force to filler jointly makes it in resiliently deformable, realizes selfsealings.In addition, adopt spiral labyrinth seal at Seal cage cover and filler with an axle appearance contacting point, the medium of having avoided leaking directly impacts filler, has reduced being stressed of filler, has further guaranteed sealing.Pump does not leak the purpose that realizes sealing when stopping with pump operation to reach pump.
The beneficial effects of the utility model are: the power that leaks and the pretightening force of having used industrial pump self medium cleverly are transmitted on the filler jointly, make filler realize selfsealings in elastic range.It is simple in structure, cost is low, non-maintaining, good sealing effect, and the once mounting long period uses.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is longitudinal section partial structurtes figure of the present utility model.
In the accompanying drawing: 1, bolt 2, spring 3, gland bolt 4, Gland 5, O type circle 6, packing cavity cover 7, filler 8, pump shaft 9, Stuffing box
Embodiment
In the accompanying drawings, O type circle (5) is installed on the packing cavity cover (6), in the Stuffing box of packing into (9), the standstill seal of principal security Stuffing box (9) and packing cavity cover (6) surface of contact.And filler (7) packed between packing cavity cover (6) and the pump shaft (8), again Gland (4) and gland bolt (3) are installed and fixed, and bolt (1), spring (2) order is installed on the packing cavity cover (6), and apply a pretightening force at bolt (1), spring (2), act on the packing cavity cover (6), make filler (7) resiliently deformable, and contact with pump shaft (8).Under static state, do not leak between filler (7) and the pump shaft (8).When pump operation, the dielectric leakage masterpiece is used for packing cavity cover (6) in the pump, passes to filler (7) by packing cavity cover (6), and impels filler (7) generation resiliently deformable closely to contact with pump shaft (8), to realize selfsealings.
Arrow 1 expression motor installation direction
Claims (4)
- The combined stuffing seal arrangement of 1 one kinds of industrial pumps, with O type circle, packing cavity cover, filler, Gland, gland bolt, spring, bolt assembled in sequence on pump shaft and Stuffing box, it is characterized in that: between the Stuffing box and pump shaft of industrial pump, between packing cavity cover and the Stuffing box O type circle is housed, is static seal face radially; Between packing cavity cover and the pump shaft filler is housed, is the dynamic radial seal face.
- 2 is according to claim 1, and the combined stuffing seal arrangement is characterized in that: O type snare is contained in packing cavity and puts with the Stuffing box inwall and contact.
- 3 is according to claim 1, and the combined stuffing seal arrangement of industrial pump is characterized in that: between packing cavity cover and the Gland filler is housed, adopts bolt, spring pulling packing cavity cover to filler extruding realization axial seal.
- 4 is according to claim 1, and the combined stuffing seal arrangement of industrial pump is characterized in that: between packing cavity cover and pump shaft, packing cavity puts and adopts the spiral maze trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206732 CN2589704Y (en) | 2002-02-08 | 2002-02-08 | Combined stuffing sealing device of industrial pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206732 CN2589704Y (en) | 2002-02-08 | 2002-02-08 | Combined stuffing sealing device of industrial pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589704Y true CN2589704Y (en) | 2003-12-03 |
Family
ID=33687989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206732 Expired - Fee Related CN2589704Y (en) | 2002-02-08 | 2002-02-08 | Combined stuffing sealing device of industrial pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589704Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113948A (en) * | 2017-06-26 | 2019-01-01 | 比亚迪股份有限公司 | Electric oil pump assembly, steering system and lubricating system |
| CN109538451A (en) * | 2019-01-14 | 2019-03-29 | 沈阳远大压缩机有限公司 | The hydraulic guiding of super-pressure diaphragm type compressor seals film head |
-
2002
- 2002-02-08 CN CN 02206732 patent/CN2589704Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113948A (en) * | 2017-06-26 | 2019-01-01 | 比亚迪股份有限公司 | Electric oil pump assembly, steering system and lubricating system |
| CN109113948B (en) * | 2017-06-26 | 2020-08-25 | 比亚迪股份有限公司 | Electric oil pump assembly, steering system and lubricating system |
| CN109538451A (en) * | 2019-01-14 | 2019-03-29 | 沈阳远大压缩机有限公司 | The hydraulic guiding of super-pressure diaphragm type compressor seals film head |
| CN109538451B (en) * | 2019-01-14 | 2024-03-26 | 沈阳远大压缩机有限公司 | Hydraulic guide type sealing membrane head of ultrahigh pressure diaphragm compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |