CN106593888A - Method and structure for prolonging service life of sand pump of sand-blasting machine - Google Patents
Method and structure for prolonging service life of sand pump of sand-blasting machine Download PDFInfo
- Publication number
- CN106593888A CN106593888A CN201611124810.3A CN201611124810A CN106593888A CN 106593888 A CN106593888 A CN 106593888A CN 201611124810 A CN201611124810 A CN 201611124810A CN 106593888 A CN106593888 A CN 106593888A
- Authority
- CN
- China
- Prior art keywords
- sand
- sand pump
- impeller
- transmission shaft
- power transmission
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a method and a structure for prolonging the service life of a sand pump of a sand-blasting machine. An impeller mechanism of the sand-blasting machine is adjusted, a group of blades are added on the top surface of an impeller, and in the working process of the sand pump, negative pressure is further formed in the central area of the back surface of the impeller by the aid of the added blades, so that a gap between a transmission shaft and a sand pump casing is located in a low-pressure area, a gap between shaft casings is in a negative pressure suction state, sand water cannot be sprayed out, no baffles are required to be welded on the transmission shaft, a motor cannot be damaged, and the overall service life of the sand pump is remarkably prolonged. The structure is simple, the cost is low, and the use effect is ideal.
Description
Technical field
The present invention relates to mechanical field, especially a kind of method and structure for improving sandblasting machine sand pump service life.
Background technology
At present, sand pump generally uses centrifugal pump, and sand pump housing, impeller and blade adopt the lost material of resistance to sand
Polyurethane is manufactured, as shown in Fig. 2 when power transmission shaft impeller rotates at a high speed, blade is dropped into sand water on side and forms higher-pressure region,
The outlet of sand pump is arranged on higher-pressure region, forms low-pressure area in centre, therefore sand water inlet is arranged on low-pressure area.And sand pump exists
During work, as wheel backface does not have blade, therefore whipping sand water is unable to.Now higher-pressure region can be from the edge arrival center of pump case
The power transmission shaft in area.Such structure can cause sand water to be gone out from the gap between axle housing, and present solution is in motor
Burn-on on power transmission shaft plate washer.And as the sand water gone out has extremely strong erosive wear ability under high pressure, sand water can cause axle housing
Between gap it is increasing, and baffle plate weares and teares also quickly, and Jing often wants repair welding, such as repair welding not in time, and the sand water gone out can be very
It is fast to damage motor.
The content of the invention
The purpose of the present invention is：A kind of method and structure for improving sandblasting machine sand pump service life is provided, it effectively can keep away
Exempt from sand water and overflow the damage caused to motor, and baffle plate need not be set, improve the whole service life of sand pump, it is existing to overcome
There is the deficiency of technology.
What the present invention was realized in：The method for improving sandblasting machine sand pump service life, by the impeller leading faces and the back of the body of sand pump
Face all arranges blade, and the sand water inlet region and power transmission shaft for making sand pump is respectively formed in the course of the work into the region of sand pump housing
Negative pressure, makes impeller and the outside of blade form higher-pressure region, so as to avoid gap spray of the sand water between power transmission shaft and sand pump housing
Go out, to effectively reduce the abrasion of sand machine, so as to improve service life.
The improved structure of sand pump, including sand pump housing, power transmission shaft, impeller, the bottom of sand pump housing bottom is sand water inlet,
Sand water out is provided with the side of sand pump housing, power transmission shaft import is provided with the top of sand pump housing, transmission the tip of the axis passes through
Power transmission shaft import is entered in sand pump housing, and is connected with the back side center of impeller, is provided with blade at the back side of impeller, in impeller
Front be provided with lower blade.
Described blade is distributed along the centrosymmetry of impeller with lower blade, and the length of single blade is impeller diameter
1/5-1/3, be highly 0.8-1.2 times of impeller thickness.
As a result of above-mentioned technical proposal, compared with prior art, the present invention have adjusted the impeller mechanism of sandblasting machine,
The top surface of impeller increased one group of blade, and in the course of the work, newly-increased blade makes wheel backface central area also be formed to sand pump
Negative pressure, so that power transmission shaft is in low-pressure area with the gap of sand pump arenaceous shell body, therefore, the gap between axle housing is negative pressure suction
State, without spraying sand water, therefore, there is no need to plate washer is welded on power transmission shaft, will not also damage motor, significantly improve sand
The whole service life of pump.Present inventive concept is ingenious, simple structure, with low cost, remarkable benefit.
Description of the drawings
Structural representation of the accompanying drawing 1 for the present invention；
Fundamental diagram of the accompanying drawing 2 for prior art.
Specific embodiment
Embodiments of the invention：The method for improving sandblasting machine sand pump service life, by the impeller leading faces of sand pump and the back side all
Blade is set, and the sand water inlet region and power transmission shaft for making sand pump is respectively formed negative in the course of the work into the region of sand pump housing
Pressure, makes impeller and the outside of blade form higher-pressure region, so as to avoid gap of the sand water between power transmission shaft and sand pump housing from spraying,
To effectively reduce the abrasion of sand machine, so as to improve service life.
The improved structure of sand pump, including sand pump housing 1, power transmission shaft 2, impeller 3, the bottom of 1 bottom of sand pump housing is sand water
Import 4, is provided with sand water out 5 in the side of sand pump housing 1, is provided with power transmission shaft import, power transmission shaft 2 at the top of sand pump housing 1
End entered in sand pump housing 1 by power transmission shaft import, and be connected with the back side center of impeller 3, be provided with the back side of impeller 3
Blade 6, is provided with lower blade 7 in the front of impeller 3；Described blade 6 is with lower blade 7 along the centrosymmetry point of impeller 3
Cloth, the length of single blade 6 is the 1/4 of 3 diameter of impeller, is highly 1.1 times of impeller thickness.
Jing inventor is actually detected, using the structure of the present embodiment, is without the need for baffle plate being arranged outside axle housing, also not being had first
There is sand water to spray, and, and, sand pump is greatly improved without repairing service life, relative to the sandblasting machine of traditional structure, without repairing
Reason time lengthening is more than 5 times (repair once for average 1-2 month, and more than 90% nothing of sandblasting machine after improving is repaiied by traditional sandblasting machine
Manage to service life and terminate.
Claims (3)
1. it is a kind of improve sandblasting machine sand pump service life method, it is characterised in that：The impeller leading faces of sand pump and the back side are all set
Blade is put, the sand water inlet region and power transmission shaft for making sand pump is respectively formed negative pressure in the course of the work into the region of sand pump housing,
Impeller and the outside of blade is made to form higher-pressure region, so as to avoid gap of the sand water between power transmission shaft and sand pump housing from spraying, with
The abrasion of sand machine is effectively reduced, so as to improve service life.
2. a kind of improved structure of the sand pump for realizing the method for claim 1, including sand pump housing (1), power transmission shaft
(2), impeller (3), it is characterised in that：The bottom of sand pump housing (1) bottom is sand water inlet (4), in the side of sand pump housing (1)
Sand water out (5) is provided with, power transmission shaft import is provided with the top of sand pump housing (1), the end of power transmission shaft (2) is entered by power transmission shaft
Mouth is entered in sand pump housing (1), and is connected with the back side center of impeller (3), is provided with blade (6) at the back side of impeller (3),
The front of impeller (3) is provided with lower blade (7).
3. the improved structure of sand pump according to claim 2, it is characterised in that：Described blade (6) and lower blade (7)
Centrosymmetry along impeller (3) is distributed, and the length of single blade (6) is the 1/5-1/3 of impeller (3) diameter, is highly leaf
0.8-1.2 times of wheel thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124810.3A CN106593888A (en) | 2016-12-08 | 2016-12-08 | Method and structure for prolonging service life of sand pump of sand-blasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124810.3A CN106593888A (en) | 2016-12-08 | 2016-12-08 | Method and structure for prolonging service life of sand pump of sand-blasting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106593888A true CN106593888A (en) | 2017-04-26 |
Family
ID=58598735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611124810.3A Pending CN106593888A (en) | 2016-12-08 | 2016-12-08 | Method and structure for prolonging service life of sand pump of sand-blasting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593888A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339779Y (en) * | 1997-12-18 | 1999-09-22 | 刘宗魁 | Open-type vertical mud pump |
| CN101070857A (en) * | 2007-06-08 | 2007-11-14 | 童国明 | Non-blocking, large flow and high lift submersible mud and sand pump |
| US20100135765A1 (en) * | 2007-05-21 | 2010-06-03 | Kevin Edward Burgess | Pumps |
| CN104265642A (en) * | 2014-09-12 | 2015-01-07 | 吉首长潭泵业有限公司 | Alloy mortar pump and part casting method thereof |
| CN204200587U (en) * | 2014-11-17 | 2015-03-11 | 唐山宏冶机械集团有限公司 | A kind of drilling mud plate-like sealed sand pump |
-
2016
- 2016-12-08 CN CN201611124810.3A patent/CN106593888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339779Y (en) * | 1997-12-18 | 1999-09-22 | 刘宗魁 | Open-type vertical mud pump |
| US20100135765A1 (en) * | 2007-05-21 | 2010-06-03 | Kevin Edward Burgess | Pumps |
| CN101070857A (en) * | 2007-06-08 | 2007-11-14 | 童国明 | Non-blocking, large flow and high lift submersible mud and sand pump |
| CN104265642A (en) * | 2014-09-12 | 2015-01-07 | 吉首长潭泵业有限公司 | Alloy mortar pump and part casting method thereof |
| CN204200587U (en) * | 2014-11-17 | 2015-03-11 | 唐山宏冶机械集团有限公司 | A kind of drilling mud plate-like sealed sand pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
|
| RJ01 | Rejection of invention patent application after publication |