CN203009300U - Frame sealing device of rotor pump - Google Patents
Frame sealing device of rotor pump Download PDFInfo
- Publication number
- CN203009300U CN203009300U CN 201320042895 CN201320042895U CN203009300U CN 203009300 U CN203009300 U CN 203009300U CN 201320042895 CN201320042895 CN 201320042895 CN 201320042895 U CN201320042895 U CN 201320042895U CN 203009300 U CN203009300 U CN 203009300U
- Authority
- CN
- China
- Prior art keywords
- cavity
- pump housing
- accommodating
- rotor pump
- low pressure
- 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 - Lifetime
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses a frame sealing device of a rotor pump. The frame sealing device of the rotor pump comprises a revolving shaft (2), a shaft sleeve (3), a sealing base (4), a pressing cover (5) and a plurality of frame oil seals (6), wherein the revolving shaft (2) is arranged on a pump body (1), the shaft sleeve (3) is connected with the revolving shaft (2) in a sleeved mode, the sealing base (4) is fixed on an end face of the pump body (1), and the plurality of frame oil seals (6) are connected with the shaft sleeve (3) in a sleeved mode in sequence. The pressing cover (5) is fixed on an outer end of the sealing base (4), and the plurality of frame oil seals (6) are tightly pressed in a cavity between the shaft sleeve (3) and the sealing base (4) in the axial direction. A low pressure area of the cavity which contains the plurality of frame oil seals (6) and a low pressure area of a cavity body which contains two rotors of the pump body are communicated through a backflow channel. By means of the frame sealing device of the rotor pump, the sealing effect of frame sealing is improved, and a conveyed medium is not prone to leaking.
Description
Technical field
The utility model relates to the rotor pump technical field, is specifically a kind of reinforced seal device of rotor pump.
Background technique
Rotor pump is selected different seal form according to the medium that is transferred, and in general, oil medium is selected reinforced seal.The reinforced seal device of rotor pump is arranged on the cavity position that the pump housing is stretched out in rotating shaft, and it comprises the rotating shaft that is located on the pump housing, be socketed in axle sleeve in rotating shaft, be fixed on pump body end surface upper seal support, gland and polylith is socketed in reinforced seal on axle sleeve successively; Described gland is fixed on the sealing seat outer end and with in the cavity of polylith reinforced seal axial compression between axle sleeve and sealing seat.Axle sleeve is provided with spacer ring outward, is provided with the gap between the inwall of spacer ring and the outer wall of axle sleeve, this spacer ring be provided with can oiling radial direction through hole, be combined with the sealing screw on radial direction through hole.
There is following shortcoming in the reinforced seal device of above this construction rotor pump: after the medium material feeding mouth inflow of carrying, through the low pressure area of the cavity of accommodating two rotors of the pump housing by after the effect of two rotors to the zone of high pressure, flow out from discharge port again, the medium of carrying can flow through reinforced seal from the gap between the outer wall of pump housing axis hole wall and axle sleeve, because pressure is larger, the sealing effect of its reinforced seal is relatively poor, fed sheet of a media or easily leakage.
The model utility content
The technical problems to be solved in the utility model is, a kind of sealing effect that increases reinforced seal is provided, is difficult for making the reinforced seal device of the rotor pump that fed sheet of a media leaks.
The technical solution of the utility model is, a kind of reinforced seal device with rotor pump of following structure is provided, comprises the rotating shaft that is located on the pump housing, be socketed in axle sleeve in rotating shaft, be fixed on sealing seat, gland and a plurality of outside framework oil seal that is socketed in successively on axle sleeve on pump body end surface; Described gland is fixed on the sealing seat outer end and with in the cavity of a plurality of outside framework oil seal axial compression between axle sleeve and sealing seat; Wherein the cavity of accommodating a plurality of outside framework oil seals is communicated with by the return flow line with the low pressure area of the cavity of accommodating two rotors of the pump housing.
After adopting above structure, the utility model compared with prior art, have the following advantages: because the cavity of accommodating a plurality of outside framework oil seals wherein is communicated with by the return flow line with the low pressure area of the cavity of accommodating two rotors of the pump housing, the medium that flows through the conveying of outside framework oil seal can be flowed directly into to the low pressure area of the cavity of accommodating two rotors of the pump housing through the return flow line more like this, realized recycling, increase reinforced seal sealing effect, be difficult for making fed sheet of a media to leak.
As improvement, described return flow line refers to, wherein be provided with one or more than one return port between the low pressure area of the cavity of accommodating two rotors of the cavity of accommodating a plurality of outside framework oil seals and the pump housing, return port is positioned on the pump housing, by return port, medium is carried, processing is simple like this, and it is convenient to carry.
As further improvement, quantity is that plural return port distributes along even circumferential, makes backflow effective, more even.
As further improvement, the inwall of the low pressure area of the cavity of accommodating two rotors of the described pump housing is provided with one or more of back flashes, and the outlet of each return port is positioned at the bottom of back flash, the convenient like this return port of processing on the pump housing.
Description of drawings
Accompanying drawing 1 is the cross-sectional view of the reinforced seal device of rotor pump of the present utility model.
Accompanying drawing 2 is the main TV structure schematic diagram of the reinforced seal device of rotor pump of the present utility model.
As shown in the figure: 1, the pump housing, 1.1, back flash, 2, rotating shaft, 3, axle sleeve, 4, sealing seat, 5, gland, 6, outside framework oil seal, 7, spacer ring, 8, return port.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, the reinforced seal device of rotor pump of the present invention comprises the rotating shaft 2 that is located on the pump housing 1, is socketed in axle sleeve 3 in rotating shaft 2, is fixed on sealing seat 4, gland 5 and a plurality of outside framework oil seal 6 that is socketed in successively on axle sleeve 3 on the pump housing 1 end face; Described gland 5 is fixed on sealing seat 4 outer ends and with in the cavity of a plurality of outside framework oil seal 6 axial compression between axle sleeve 3 and sealing seat 4; Axle sleeve 3 is outer is provided with spacer ring 7, is provided with the gap between the outer wall of the inwall of spacer ring 7 and axle sleeve 3, this spacer ring be provided with can oiling radial direction through hole, be combined with on radial direction through hole to seal and use screw.Wherein the cavity of accommodating a plurality of outside framework oil seal 6 is communicated with by the return flow line with the low pressure area of the cavity of accommodating two rotors of the pump housing.The cavity of accommodating two rotors of the pump housing is boundary along the center line connecting line of two rotors, is low pressure area near material feeding mouth one side, is the zone of high pressure near discharge port one side.
Described return flow line refers to, is provided with between the low pressure area of the cavity of accommodating two rotors of the cavity of accommodating a plurality of outside framework oil seal 6 and the pump housing wherein that in one or more than one return port 8(such as Fig. 1, dotted line indicates), return port 8 is positioned on the pump housing 1.That is to say that return port 8 is inclined hole, not parallel with the axis of rotating shaft 2.The quantity of return port 8 does not limit, and quantity is that plural return port 8 distributes along even circumferential.
The inwall of the low pressure area of the cavity of accommodating two rotors of the described pump housing 1 is provided with one or more of back flashes 1.1, and the outlet of each return port 8 is positioned at the bottom of back flash 1.1.Because return port 8 is inclined hole, be difficult for boring in the plane, thus first process a back flash 1.1, convenient like this boring again, the outlet of each return port 8 is positioned at the bottom of back flash 1.1.
Rotor pump is provided with two rotating shafts, and corresponding outside framework oil seal device is also two, and two structure is identical, is structure shown in the present.
Claims (4)
1. the reinforced seal device of a rotor pump comprises the rotating shaft (2) that is located on the pump housing (1), is socketed in axle sleeve (3) in rotating shaft (2), is fixed on sealing seat (4), gland (5) and a plurality of outside framework oil seal (6) that is socketed in successively on axle sleeve (3) on the pump housing (1) end face; Described gland (5) is fixed on sealing seat (4) outer end and with in the cavity of a plurality of outside framework oil seals (6) axial compression between axle sleeve (3) and sealing seat (4); It is characterized in that: wherein the cavity of accommodating a plurality of outside framework oil seal (6) is communicated with by the return flow line with the low pressure area of the cavity of accommodating two rotors of the pump housing.
2. the reinforced seal device of rotor pump according to claim 1, it is characterized in that: described return flow line refers to, wherein be provided with one or more than one return port (8) between the low pressure area of the cavity of the cavity of accommodating a plurality of outside framework oil seal (6) and accommodating two rotors of the pump housing, return port (8) is positioned on the pump housing (1).
3. the reinforced seal device of rotor pump according to claim 2, it is characterized in that: quantity is that plural return port (8) distributes along even circumferential.
4. the reinforced seal device of rotor pump according to claim 2, it is characterized in that: the inwall of the low pressure area of the cavity of accommodating two rotors of the described pump housing (1) is provided with one or more of back flashes (1.1), and the outlet of each return port (8) is positioned at the bottom of back flash (1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320042895 CN203009300U (en) | 2013-01-24 | 2013-01-24 | Frame sealing device of rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320042895 CN203009300U (en) | 2013-01-24 | 2013-01-24 | Frame sealing device of rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009300U true CN203009300U (en) | 2013-06-19 |
Family
ID=48600898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320042895 Expired - Lifetime CN203009300U (en) | 2013-01-24 | 2013-01-24 | Frame sealing device of rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009300U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061330A (en) * | 2014-06-25 | 2014-09-24 | 佛山高富中石油燃料沥青有限责任公司 | Framework oil seal structure of asphalt pump |
| CN104100697A (en) * | 2014-07-10 | 2014-10-15 | 山东能源机械集团中传重装矿用设备制造有限公司 | Sealing seat |
| CN115143108A (en) * | 2022-07-04 | 2022-10-04 | 淄博真空设备厂有限公司 | Screw type vacuum compressor for collecting and recycling oil gas |
-
2013
- 2013-01-24 CN CN 201320042895 patent/CN203009300U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061330A (en) * | 2014-06-25 | 2014-09-24 | 佛山高富中石油燃料沥青有限责任公司 | Framework oil seal structure of asphalt pump |
| CN104061330B (en) * | 2014-06-25 | 2016-04-27 | 佛山高富中石油燃料沥青有限责任公司 | A kind of outside framework oil seal structure of bitumenpump |
| CN104100697A (en) * | 2014-07-10 | 2014-10-15 | 山东能源机械集团中传重装矿用设备制造有限公司 | Sealing seat |
| CN115143108A (en) * | 2022-07-04 | 2022-10-04 | 淄博真空设备厂有限公司 | Screw type vacuum compressor for collecting and recycling oil gas |
| CN115143108B (en) * | 2022-07-04 | 2024-05-28 | 淄博真空设备厂有限公司 | Screw vacuum compressor for oil gas collection and recovery |
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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: 20130619 |
|
| CX01 | Expiry of patent term |