CN2199373Y - Sealing device for shaft radial of oil pump - Google Patents
Sealing device for shaft radial of oil pump Download PDFInfo
- Publication number
- CN2199373Y CN2199373Y CN 94219764 CN94219764U CN2199373Y CN 2199373 Y CN2199373 Y CN 2199373Y CN 94219764 CN94219764 CN 94219764 CN 94219764 U CN94219764 U CN 94219764U CN 2199373 Y CN2199373 Y CN 2199373Y
- Authority
- CN
- China
- Prior art keywords
- pump
- face
- axle
- diameter
- gland
- 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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Abstract
The utility model provides a sealing device for shaft radial of oil pump. Between a pump base and an end face press cap, a sealing rubber ring is clamped; the shaft hole of the end face press cap is equipped with an outer concave opening; a shaft radial sealing rubber ring sheathed with the pump shaft is equipped in the concave opening and is impacted and fixed by the press cap; the top cap of the end face press cap is equipped with a through hole in radial direction which is connected to the inlet pipe of the oil pump by a guide pipe. The utility model has a novel structure, a professional design, and a long service life, and it is easy in use and is a late-model pump shaft sealing device.
Description
The utility model belongs to the seal arrangement of rotary piston type pump in the mechanical engineering technical field, is a kind of seal arrangement of the oil transfer pump diameter of axle particularly.
Mostly the diameter of axle sealing of existing rotary piston oil pump such as wing pump, gear pump etc. is to adopt the material filling type sealing.That is: be shaped on shrinkage pool at the axis hole place of pump seat, the plastic filler of drive fit pump shaft device is fixed by gland again in the shrinkage pool.Existing FJ7 type oil pump is exactly this form.But because the high speed rotating and the friction tight filler direct friction of pump shaft easily produces high temperature and local superheating, with filler sintering or heavy wear, and cause poorly sealed, diameter of axle seepage.In addition, pump shaft cantilever in stuffing hole is long, causes radially dither of pump shaft, has quickened the friction of the diameter of axle to filler again.Therefore, the sealing configuration of the existing oil pump diameter of axle is unreasonable, and sealing is easy to damage, and working life is short, has directly influenced the working efficiency of oil pump.
The purpose of the utility model provides a kind of improved oil pump diameter of axle seal arrangement, to overcome the deficiencies in the prior art, realizes that it is rational in infrastructure, and sealing is tight, and long service life is worked efficiently and stably to guarantee oil pump.
The utility model is achieved in that and clamps an O-ring seal between the exterior edge face of the end face gland of pump seat and pump seat; The O-ring seal that device is placed on the pump shaft in the recess outside the axis hole place of end face gland is shaped on, recess is fixed by diameter of axle gland, and seal ring is become closely movingly with pump shaft; And the end face gland radially be shaped on through hole, through hole is communicated with the inlet duct of oil pump by conduit, consists of dual rubber sealing formula oil pump diameter of axle seal arrangement.
Because the utility model is designed to dual rubber sealing, end-face seal ring seals the end face seal of pump seat stuffing hole, diameter of axle seal ring again with diameter of axle place; And will be communicated with pumping intake piping in the end face gland, make lubricant oil from the diameter of axle by the end face seal gland through conduit inflow pump inlet duct, the both lubricated pump shaft resistance of reducing friction can cool off the fricative heat of the diameter of axle and fitted seal cushion rubber again, avoids the high temperature that produces effectively and the scaling loss seal ring.Therefore, the utility model novel structure, reasonable in design, easy to use, show through test for several times, can quite existing material filling type sealing improve working life more than 2 times, be a kind of novel pump shaft sealing device.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the sectional view of the utility model concrete structure.
With reference to accompanying drawing 1, the utility model comprises: pump seat (2), pump shaft (6) end face gland (4), diameter of axle gland (5), diameter of axle O-ring seal (7), end face seal cushion rubber (8) and conduit (3).Device diameter of axle O-ring seal (7) and be fixed by diameter of axle gland (5) in recess, the recess outside being shaped on the axis hole of end face gland (4), O-ring seal (7) are placed in pump shaft (6) and go up with pump shaft one-tenth and be connected movingly closely.And between end face gland (4) and pump seat (2) exterior edge face, clamp end face seal cushion rubber (8).Also the top cover at end face gland (4) radially is shaped on through hole, and through hole connecting duct (3) is communicated with the inlet duct (1) of oil pump.
In order to strengthen the supporting of pump shaft, shorten the cantilever segment of pump shaft, reduce pump shaft and directly beat, in the stuffing hole of pump seat (2), installed pump shaft lining (9).
Claims (2)
1, a kind of seal arrangement of the oil pump diameter of axle, it comprises pump seat (2), pump shaft (6) and end face gland (4), it is characterized in that the sealing device also comprises end face seal cushion rubber (8), diameter of axle O-ring seal (7), diameter of axle gland (5) and conduit (3), be shaped on outer recess on the axis hole of end face gland (4), device is placed in the diameter of axle O-ring seal (7) on the pump shaft (6) and is fixed by diameter of axle gland (5) in the recess, O-ring seal (7) becomes to be connected movingly closely with pump shaft (6), between the exterior edge face of end face gland (4) and pump seat (2), clamped end face seal cushion rubber (8), and radially be shaped on through hole is communicated with oil pump by conduit (3) inlet duct (1) at the top cover of end face gland (4).
2, seal arrangement according to claim 1 is characterized in that being equipped with pump shaft lining (9) in the stuffing hole of pump seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219764 CN2199373Y (en) | 1994-08-30 | 1994-08-30 | Sealing device for shaft radial of oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219764 CN2199373Y (en) | 1994-08-30 | 1994-08-30 | Sealing device for shaft radial of oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199373Y true CN2199373Y (en) | 1995-05-31 |
Family
ID=33834543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94219764 Expired - Fee Related CN2199373Y (en) | 1994-08-30 | 1994-08-30 | Sealing device for shaft radial of oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199373Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832289A (en) * | 2010-05-27 | 2010-09-15 | 蓝星化工有限责任公司 | Sealing device for shaft end of chemical centrifugal pump |
-
1994
- 1994-08-30 CN CN 94219764 patent/CN2199373Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832289A (en) * | 2010-05-27 | 2010-09-15 | 蓝星化工有限责任公司 | Sealing device for shaft end of chemical centrifugal pump |
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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 |