CN200982311Y - Seal adjustable slurry pump - Google Patents
Seal adjustable slurry pump Download PDFInfo
- Publication number
- CN200982311Y CN200982311Y CN 200620093316 CN200620093316U CN200982311Y CN 200982311 Y CN200982311 Y CN 200982311Y CN 200620093316 CN200620093316 CN 200620093316 CN 200620093316 U CN200620093316 U CN 200620093316U CN 200982311 Y CN200982311 Y CN 200982311Y
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- joins
- shaft
- ring
- 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 discloses a sealing adjustable slurry pump which doesn't need shut-down and detach to adjust the sealing compression quantity comprising a pump body (1), the pump body (1) inside is provided with an impeller (3) with assistant leaflets connected with a pump shaft (2) key, the front impeller (3) is provided with an impeller screw cap fixedly connected with the end of the pump shaft (2), a pump cover (5) connected with the pump body (1) is connected with a floating charging end cap (6), the pump shaft (2) is externally connected with a shaft sleeve (7) which is connected with an inner sleeve (8) fixed on the bore surface of the pump cover (5) by mechanical seal, the mechanical seal is provided with a moving ring (9) arranged at the front of the shaft sleeve (7) and directly connected with the pump shaft (2), a stationary ring (10) is arranged on the external surface of the shaft sleeve (7) connected with the moving ring (9), the stationary ring (10) is connected with a stationary ring seat (13) by a throw-out collar (11) and a butterfly spring (12), the stationary ring (10) is provided with a sealing ring (14) connected with the inner sleeve (8), the back side face of the stationary ring seat (13) is connected with a cuneate adjusting shim (15) which is connected with a catch bar (16) arranged in the floating charging end cap (6).
Description
Technical field:
The utility model relates to a kind of pump, especially a kind ofly need not to dismantle the slag stock pump that can adjust seal compression.
Background technique:
The slag stock pump is to be applied to industrial fields such as mine, metallurgy, environmental protection, is used to carry the pump of impure neutrality or Korrosionsmedium (slag slurry).At present, known slag stock pump has single-stage radial impeller formula, axially sucks, and radially discharges.Its structure is to be provided with the pump housing, pump shaft, key is connected with the impeller that has back blades that places in the pump housing on the pump shaft, have respectively before and after the impeller to be threaded in the impeller nut on the pump shaft and to be arranged on the outer axle sleeve of pump shaft, be connected to pump cover with the pump housing, pump cover joins with floating dress end cap again; Mechanical seal or the packing seal be made up of the rotating ring, stationary ring, throw-out collar, spring and the stationary seat that are arranged on outside the axle sleeve place in the Seal cage, are processed with the impeller positioning step on pump shaft.Driven by motor coupling during use drives the pump shaft rotation then, by the rotation of key impeller, slag is starched from impeller shaft to suction, by impeller channel, from impeller spiral case mouth discharge radially.Existing slag stock pump exists following problem:
As mechanical seal in use occur to leak, can only dismantle devices such as coupling guard except that the pump housing, coupling, bearing housing, pump cover, floating dress end cap, maintenance or replacing are taken out in the mechanical seal position.Because dismounting need be carried out under vehicle stop state, not only influence is produced, but also will waste great amount of manpower and material resources, especially need dismantle at the user scene, and maintenance is inconvenience very.
2. because mechanical seal is arranged on the axle sleeve outside, and the medium in the pump chamber can flow directly in the Seal cage by pump cover and axle sleeve gap, mechanical seal weak effect and working life are short, need often dismantle, keep in repair, and influence manufacturing efficiency.
3. fixedly the impeller nut of impeller is connected with thread forms on the termination of pump shaft, does not allow counter-rotating to start during very easily loosening and operation.Yet because export pipeline is longer in the as installed, and pipeline installs and to be uneven with the face of land, so during each parking maintenance, all need in the turned letter pipe slag slurry or allow to restart behind the interior air of pump counter-rotating excavationg pump, otherwise the plugging phenomenon can occur.Because existing slag stock pump can not reverse, and can not satisfy usage requirement, therefore the plugging phenomenon also just very easily takes place.
Summary of the invention:
The utility model is in order to solve existing in prior technology the problems referred to above, and a kind of good sealing effect, easy to maintenance, long service life, the adjustable slag stock pump of sealing that manufacturing efficiency is high are provided.
Technical solution of the present utility model is: the adjustable slag stock pump of a kind of sealing, the pump housing 1 is arranged, the pump housing 1 is built-in with the impeller that has back blades 3 that is connected with pump shaft 2 keys, the impeller nut 4 of fixedlying connected with pump shaft 2 terminations is arranged before the impeller 3, be connected to pump cover 5 with the pump housing 1, pump cover 5 joins with floating dress end cap 6; Pump shaft 2 is circumscribed with axle sleeve 7, described axle sleeve 7 joins by mechanical seal and the interior cover 8 that is fixed on pump cover 5 bore areas, mechanical seal is to be provided with to place the rotating ring 9 that axle sleeve 7 fronts are direct and pump shaft 2 joins, be connected to the stationary ring 10 that places axle sleeve 7 outer surfaces with rotating ring 9, stationary ring 10 joins with stationary seat 13 by throw-out collar 11, butterfly spring 12, the seal ring 14 that joins with interior cover 8 is arranged on the stationary ring 10, be connected to wedge shape spacer 15 with the trailing flank of stationary seat 13, be connected to the catch bar 16 that places in the floating dress end cap 6 with wedge shape spacer 15.
Outside the wheel hub of the impeller 3 that has back blades, be provided with the end cap 17 that joins with pump cover 5, be provided with between impeller 3 and the rotating ring 9 and be fixed on the pump shaft 2 and place sub-propeller 18 in end cap 17 and the pump cover 5 formed cavitys.
Described impeller nut 4 outer fixing have chuck 19, are provided with stop pin 20 in chuck 19 back.
The utility model is compared with prior art has following advantage:
1. find to leak if be in operation, dispense with parking, dismounting, only by the set mechanical seal investigation mission outside the city or town device that constitutes by wedge shape spacer and catch bar, can realize adjustment to the mechanical seal decrement, prevent that effectively particle from entering machine end-blocking face, prolong the working life of mechanical seal, can save great amount of manpower and material resources simultaneously, avoided the influence that therefore production is caused;
Be provided with between impeller and the rotating ring be fixed on the pump shaft and place end cap and pump cover between sub-propeller and the formed dynamic seal of back blades of impeller, stop impurity to enter Seal cage effectively, improved sealability; And can prevent that from the logical sparge water of Seal cage impurity from entering sealing surface;
3. impeller nut is fixed on the termination of pump shaft by chuck and locating stud, has improved the anti-loosening property of impeller, substitute the impeller positioning step with the axle sleeve that prolongs simultaneously, changed the Placement of impeller and pump shaft, off-axis when preventing to move has satisfied usage requirement.
Description of drawings:
Fig. 1 is the utility model embodiment's an overall structure schematic representation.
Fig. 2 is the utility model embodiment's a mechanical seal structure schematic representation.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.As shown in Figure 1: the adjustable slag stock pump of a kind of sealing, with prior art the pump housing 1 is arranged equally, the pump housing 1 is built-in with the impeller that has back blades 3 that is connected with pump shaft 2 keys, and the impeller nut 4 of fixedlying connected with pump shaft 2 terminations is arranged before the impeller 3, be connected to pump cover 5 with the pump housing 1, pump cover 5 joins with floating dress end cap 6; Pump shaft 2 is circumscribed with axle sleeve 7, and described axle sleeve 7 joins by mechanical seal and the interior cover 8 that is fixed on pump cover 5 bore areas.Described mechanical seal is as shown in Figure 2: be provided with and place axle sleeve 7 fronts directly and the rotating ring 9 that joins of pump shaft 2, be connected to the stationary ring 10 that places axle sleeve 7 outer surfaces with rotating ring 9, stationary ring 10 joins with stationary seat 13 by throw-out collar 11, butterfly spring 12, the seal ring 14 that joins with interior cover 8 is arranged on the stationary ring 10, be connected to and wedge shape spacer 15 with the trailing flank of stationary seat 13, be connected to the catch bar 16 that places in the floating dress end cap 6 with wedge shape spacer 15.Catch bar 16 can be a hex screw, also can be other structural type that can promote wedge shape spacer 15, and the footpath that wedge shape spacer 15 and catch bar 16 can be oppositely arranged on floating dress end cap 6 in pairs makes progress.When finding to leak, regulate hex screw, hex screw promotion wedge shape spacer 15 moves down and promotes stationary seat 13 then, promotes butterfly spring 12, throw-out collar 11, stationary ring 10 and rotating ring 9 successively, to adjust the decrement of mechanical seal.Outside the axle sleeve of the impeller 3 that has back blades, be provided with the end cap 17 that joins with pump cover 5, be provided with between impeller 3 and the rotating ring 9 and be fixed on the pump shaft 2 and place sub-propeller 18 in end cap 17 and the pump cover 5 formed cavitys, to improve sealing effect.At impeller nut 3 outer fixing chuck 19 is arranged, be provided with stop pin 20 in chuck 19 back, anti-loosening property is good, allows the pump counter-rotating to start.
Claims (3)
1. one kind seals adjustable slag stock pump, the pump housing (1) is arranged, the pump housing (1) is built-in with the impeller that has back blades (3) that is connected with pump shaft (2) key, impeller (3) is preceding the impeller nut (4) of fixedlying connected with pump shaft (2) termination, be connected to pump cover (5) with the pump housing (1), pump cover (5) joins with floating dress end cap (6); Pump shaft (2) is circumscribed with axle sleeve (7), it is characterized in that: described axle sleeve (7) joins by mechanical seal and the interior cover (8) that is fixed on pump cover (5) bore area, mechanical seal is to be provided with to place the rotating ring (9) that axle sleeve (7) front is direct and pump shaft (2) joins, be connected to the stationary ring (10) that places axle sleeve (7) outer surface with rotating ring (9), stationary ring (10) is by throw-out collar (11), butterfly spring (12) joins with stationary seat (13), the seal ring (14) that joins with interior cover (8) is arranged on the stationary ring (10), be connected to wedge shape spacer (15) with the trailing flank of stationary seat (13), be connected to the catch bar (16) that places in the floating dress end cap (6) with wedge shape spacer (15).
2. the adjustable slag stock pump of sealing according to claim 1, it is characterized in that: outside the wheel hub that has the impeller of back blades (3), be provided with the end cap (17) that joins with pump cover (5), be provided with between impeller (3) and the rotating ring (9) and be fixed on pump shaft (2) and go up and place end cap (17) and the interior sub-propeller (18) of the formed cavity of pump cover (5).
3. the adjustable slag stock pump of sealing according to claim 1 and 2 is characterized in that: described impeller nut (4) outer fixing has chuck (19), is provided with stop pin (20) in chuck (19) back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620093316 CN200982311Y (en) | 2006-09-15 | 2006-09-15 | Seal adjustable slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620093316 CN200982311Y (en) | 2006-09-15 | 2006-09-15 | Seal adjustable slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982311Y true CN200982311Y (en) | 2007-11-28 |
Family
ID=38909469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620093316 Expired - Fee Related CN200982311Y (en) | 2006-09-15 | 2006-09-15 | Seal adjustable slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982311Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828990A (en) * | 2012-09-06 | 2012-12-19 | 安徽迈宁工业泵有限公司 | Integrated mechanical seal for pressure-reducing cover and pump shaft of residue slurry pump |
| CN104265678A (en) * | 2014-09-26 | 2015-01-07 | 浙江理工大学 | Sealing mechanism for gap between impeller and volute |
| CN108105145A (en) * | 2016-11-25 | 2018-06-01 | 中广核工程有限公司 | Nuclear power plant reactor cooling agent mechanical sealing device used for pump |
-
2006
- 2006-09-15 CN CN 200620093316 patent/CN200982311Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828990A (en) * | 2012-09-06 | 2012-12-19 | 安徽迈宁工业泵有限公司 | Integrated mechanical seal for pressure-reducing cover and pump shaft of residue slurry pump |
| CN104265678A (en) * | 2014-09-26 | 2015-01-07 | 浙江理工大学 | Sealing mechanism for gap between impeller and volute |
| CN104265678B (en) * | 2014-09-26 | 2017-02-15 | 浙江理工大学 | Sealing mechanism for gap between impeller and volute |
| CN108105145A (en) * | 2016-11-25 | 2018-06-01 | 中广核工程有限公司 | Nuclear power plant reactor cooling agent mechanical sealing device used for pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20100915 |