CN203463295U - Shaftless screw feeding type screw pump - Google Patents
Shaftless screw feeding type screw pump Download PDFInfo
- Publication number
- CN203463295U CN203463295U CN201320313198.XU CN201320313198U CN203463295U CN 203463295 U CN203463295 U CN 203463295U CN 201320313198 U CN201320313198 U CN 201320313198U CN 203463295 U CN203463295 U CN 203463295U
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- shaftless
- rotor
- suction chamber
- stator
- pump
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Abstract
The utility model provides a shaftless screw feeding type screw pump, which comprises a motor, a decelerator, a shaft coupling and a pump body. The motor is connected with the decelerator. The decelerator is connected with the pump body through the shaft coupling. The pump body is composed of a bearing pedestal, a transmission shaft, a suction chamber, a stator and a rotor. The bearing pedestal is connected with the shaft coupling. One end of the suction chamber is fixedly connected with the bearing pedestal, and the other end of the suction chamber is fixedly connected with the stator. The connection part of the suction chamber and the stator is sealed and the bearing pedestal is internally sleeved with the transmission shaft. The pump body is internally provided with the stator and the rotor, wherein the stator and the rotor are mutually matched. The rotor and the transmission shaft are connected by means of an intermediate shaft. The intermediate shaft is arranged in the suction chamber and is eccentrically connected with the rotor. The suction chamber is provided with a feeding inlet positioned corresponding to the intermediate shaft. The shaftless screw feeding type screw pump also comprises a shaftless screw feeding type blade and one end of the shaftless screw feeding type blade is fixedly connected with the transmission shaft. The shaftless screw feeding type screw pump has the advantages of simple structure, high charging efficiency and long service life.
Description
Technical field
The utility model relates generally to conveying mechanical field, is mainly a kind of shaftless screw feeding screw pump.
Background technique
The spiral feed pump technology of prior art, if the patent No. is that 201120512782 patent names are the pump housing of band centering spiral-tube, because its spiral-tube is connected with rotor, spiral-tube middle part is solid construction, at solid accumulation to cannot pressure release in the situation of rotor ingress, it is carrying the large inert material of viscosity, during as dewatered sludge, spiral-tube and the helical blade of material easily and in suction chamber piled up compacting, form bar-shapedly, do not play the effect that advances material, usability is discount to some extent, and easily produce the dry operation of pump, cause the life-span of pump to decline.
The Shaftless screw conveyor technology of existing market, its mass transport belongs to open, cannot be material pressurized delivered, for what have pressure to carry to require, just cannot reach usage requirement.
Model utility content
In order to address the above problem, the utility model proposes a kind of shaftless screw feeding screw pump.A kind of shaftless screw feeding screw pump the utility model proposes has overcome the shortcoming and defect in background technique, and simple in structure, charging efficiency is high, long service life.
The utility model solves the problems of the technologies described above adopted technological scheme:
A kind of shaftless screw feeding screw pump, comprise motor, retarder, coupling and the pump housing, described motor is connected with retarder, described retarder is connected with the pump housing by coupling, the described pump housing comprises bearing support, transmission shaft, suction chamber, stator, rotor, described bearing support is connected with coupling, one end of described suction chamber is fixedly connected with bearing support, the other end of described suction chamber is fixedly connected with stator, the joint sealing of described suction chamber and stator, in described bearing support, be arranged with transmission shaft, stator and the rotor of working in coordination are housed in the described pump housing, between described rotor and transmission shaft, by jack shaft, be connected, described jack shaft is positioned at suction chamber, described jack shaft is connected with rotor eccentricity, the suction chamber of described jack shaft position is provided with material feeding mouth, also comprise shaftless spiral feeding blade, one end of described shaftless spiral feeding blade is fixedly connected with transmission shaft, in described shaftless spiral feeding blade central space, be provided with jack shaft, described suction chamber is cylindric.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, shaftless spiral feeding blade is fixedly connected with transmission shaft by flange, is convenient to dismounting, maintenance.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, the gap of the external diameter of described shaftless spiral feeding blade and suction chamber internal diameter is less than or equal to 10 millimeters.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, described jack shaft is connected with transmission shaft by the first universal joint, and described rotor is connected with jack shaft by the second universal joint.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, described rotor is rigidity single head helicoid construction rotor, stator is elasticity twin-feed spiral face structure stator.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, the side of the described pump housing arranges discharge body, and described discharge body is fixedly connected with stator by pull bar.The open end of discharging body arranges flange-interface, and described flange-interface can be connected with the pipeline using, and uses pull bar can guarantee to discharge being tightly connected of body and stator.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, the described pump housing is helical rotor pump body.
Above-mentioned a kind of shaftless screw feeding screw pump, wherein, higher value-2 * stator in the two of the external diameter of inner diameter-the first universal joint of described shaftless spiral feeding blade, the external diameter of the second universal joint and the eccentricity value <=40 millimeter of rotor.
In the pump housing of the utility model product, be provided with shaftless spiral feeding blade, and adopt the helical rotor pump transporting pattern of rigidity single head helicoid structure stator and elasticity twin-feed spiral face structure stator, because shaftless spiral feeding blade is fixedly installed on transmission shaft, do Concentric rotation with transmission shaft, that accomplish in gap between shaftless spiral feeding blade outer wall and suction chamber inwall is very little (for example 10 millimeters in), increase quantity delivered, viscous material is discharged from the pressurization of pump housing cavity volume with the propelling of shaftless spiral feeding blade, when there is the increase of solid accumulation pressure, material can return to suction chamber entry end from the central space of shaftless spiral feeding blade automatically, and can not be squeezed in suction chamber near one end of rotor, thereby produce pressure release effect, avoided forming bar-shaped with jack shaft after solid accumulation, improved the progradation of viscous material.Traditional helical blade is arranged on jack shaft, due to one end of jack shaft, follows rotor and does planetary oscillating, can not accomplish and transmission shaft Concentric rotation, thereby eccentric motion numerical value must be considered in the gap that helical blade outer wall and the corresponding pump housing hold between matter inwall.So the utility model product is directly connected shaftless spiral feeding blade with transmission shaft, avoided bulk materials to pile up at suction chamber inwall, improved the push-in stroke of viscous material, avoid occurring dead angle, reduce viscous material air content, reduced cavitation erosion, avoided the dry operation of the pump housing, guarantee the life-span of pump, improved pump efficiency.The utility model product is when operation, and the planetary motion of rotor makes jack shaft produce the swing of small angle spiral, and the swing of jack shaft increases disturbance to the spiral charging of shaftless spiral feeding blade, improves charging efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of shaftless screw feeding screw pump of the utility model;
Fig. 2 is the partial structurtes schematic diagram of a kind of shaftless screw feeding screw pump of the utility model.
Description of reference numerals:
1 motor 2 retarder 3 bearing supports
4 suction chamber 5 rotors 6 are discharged body
7 stator 8 pull bar 9 second universal joints
The shaftless spiral feeding blade of 10 jack shaft 11
12 first universal joint 13 transmission shaft 14 coupling
15 pump housing 16 material feeding mouths
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of shaftless screw feeding screw pump, comprise motor 1, retarder 2, coupling 14 and the pump housing 15, described motor 1 is connected with retarder 2, described retarder 2 is connected with the pump housing 15 by coupling 14, the described pump housing 15 comprises bearing support 3, transmission shaft 13, suction chamber 4, shaftless spiral feeding blade 11, stator 7, rotor 5, discharge body 6, described bearing support 3 is connected with coupling 14, one end of described suction chamber 4 is fixedly connected with bearing support 3, the other end of described suction chamber 4 is fixedly connected with stator 7, described suction chamber 4 seals with the joint of stator 7, in described bearing support 3, be arranged with transmission shaft 13, the stator 7 and rotor 5 of working in coordination are housed in the described pump housing 15, between described rotor 5 and transmission shaft 13, by jack shaft 10, be connected, one end of described jack shaft 10 is connected with transmission shaft 13 by the first universal joint 12, the other end is connected with rotor 5 by the second universal joint 9.Described jack shaft 10 is positioned at suction chamber 4, and described jack shaft 10 is connected with rotor 5 is eccentric, and the suction chamber 4 of described jack shaft 10 positions is provided with material feeding mouth 16.Described rotor 5 is rigidity single head helicoid construction rotor, and stator 7 is elasticity twin-feed spiral face structure stator, and the described pump housing 15 is helical rotor pump bodies.
One end of shaftless spiral feeding blade 11 is fixedly connected with transmission shaft 13 by flange, is convenient to dismounting, the maintenance of shaftless spiral feeding blade 11; In described shaftless spiral feeding blade 11 central space, be provided with jack shaft 10, described suction chamber 4 is cylindric.The gap of the external diameter of described shaftless spiral feeding blade 11 and suction chamber 4 internal diameters is less than or equal to 10 millimeters, and the difference of the length of the length of shaftless spiral feeding blade 11 and suction chamber 4 is less than or equal to 10 millimeters.The difference of the external diameter of described shaftless spiral feeding blade and suction chamber 4 internal diameters is less, and the difference of the length of the length of shaftless spiral feeding blade 11 and suction chamber 4 is less, and the conveying effect of the utility model product is just better.
The side of the described pump housing 15 arranges discharges body 6, and described discharge body 6 is fixedly connected with stator 7 by pull bar 8.The open end of discharging body 6 arranges flange-interface, and described flange-interface can be connected with the pipeline using, and uses pull bar 8 can guarantee to discharge being tightly connected of body 6 and stator 7.
Higher value-2 * stator in the two of the external diameter of inner diameter-the first universal joint of described shaftless spiral feeding blade 11, the external diameter of the second universal joint and the eccentricity value <=40 millimeter of rotor.
In order to guarantee to be transferred the phenomenons such as material does not stop up in course of conveying, accumulation, the push-in stroke that shaftless spiral feeding blade 11 often turns is less than or equals the quantity delivered that rotor 5 often turns, and the pitch of the push-in stroke that shaftless spiral feeding blade 11 often turns=(shaftless spiral feeding blade 11 external diameter place areas-shaftless spiral feeding blade 11 internal diameter place areas) * shaftless spiral feeding blade 11.The moment of torsion that also will can bear according to the weight of shaftless spiral feeding blade 11, bearing in addition, and the use occasion of the utility model product decide length and the external diameter of the suction chamber 4 of the utility model product.
The power of motor 1 is passed to the shaftless spiral shell feeding blade 11 fixing with it through retarder 2, coupling 14, transmission shaft 13.Because shaftless spiral feeding blade 11 is fixedly connected with transmission shaft 13, shaftless spiral feeding blade 11 moves in the interior form concentric spirals of doing of suction chamber 4, the viscous material in the pump housing 15 is pushed to the cavity volume of rotor 5 and stator 7 formation.The power of motor 1 is passed to coupled rotor 5 through retarder 2, coupling 14, transmission shaft 13, the first universal joint 12, jack shaft 10, the second universal joint 9, restriction due to stator 7 die cavities, the rotation of rotor 5 in stator 7, existing rotation has again the planetary motion with small eccentricity revolution.The cavity volume forming with stator 7 engagements during rotor 5 motion is continuously to discharging body 6 side shiftings, and by viscous material in chamber, through discharging body 6 outputs, transmission shaft 13 side cavity volume vacuum simultaneously, by the viscous material suction advancing via shaftless spiral feeding blade 11.Because shaftless spiral feeding blade 11 middle parts are hollow, there is space in its inside, after can avoiding viscous material to pile up and jack shaft form bar-shapedly, improved the volumetric efficiency of pump, avoided the dry operation of pump, guaranteed the normal safe operation of pump.Because shaftless spiral feeding blade 11 has axial elasticity, the speed ratio that can control screw feeding and screw feed makes the gas in shaftless spiral feeding blade 11 compression mud, reduces cavitation erosion, improves pump efficiency.Because shaftless spiral feeding blade 11 and transmission shaft 13 are done Concentric rotation, can accomplish gap between shaftless spiral feeding blade 11 outer walls and the inwall of suction chamber 4 accomplish very little, increase quantity delivered.
Referring to Fig. 2, owing to there is small eccentricity in the motion of rotor 5, make the jack shaft 10 being connected with rotor 5 do rotatablely moving of one end centering, one end bias, can make near viscous material jack shaft 10 promote to shaftless spiral feeding blade 11 places, help to spiral feeding belt, raise the efficiency.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a shaftless screw feeding screw pump, comprise motor, retarder, coupling and the pump housing, described motor is connected with retarder, described retarder is connected with the pump housing by coupling, the described pump housing comprises bearing support, transmission shaft, suction chamber, stator, rotor, described bearing support is connected with coupling, one end of described suction chamber is fixedly connected with bearing support, the other end of described suction chamber is fixedly connected with stator, the joint sealing of described suction chamber and stator, in described bearing support, be arranged with transmission shaft, stator and the rotor of working in coordination are housed in the described pump housing, between described rotor and transmission shaft, by jack shaft, be connected, described jack shaft is positioned at suction chamber, described jack shaft is connected with rotor eccentricity, the suction chamber of described jack shaft position is provided with material feeding mouth, it is characterized in that, also comprise shaftless spiral feeding blade, one end of described shaftless spiral feeding blade is fixedly connected with transmission shaft, in described shaftless spiral feeding blade central space, be provided with jack shaft, described suction chamber is cylindric.
2. a kind of shaftless screw feeding screw pump according to claim 1, is characterized in that, shaftless spiral feeding blade is fixedly connected with transmission shaft by flange.
3. a kind of shaftless screw feeding screw pump according to claim 1, is characterized in that, the gap of the external diameter of described shaftless spiral feeding blade and suction chamber internal diameter is less than or equal to 10 millimeters.
4. a kind of shaftless screw feeding screw pump according to claim 1, is characterized in that, described jack shaft is connected with transmission shaft by the first universal joint, and described rotor is connected with jack shaft by the second universal joint.
5. according to a kind of shaftless screw feeding screw pump described in claim 1 or 4, it is characterized in that, described rotor is rigidity single head helicoid construction rotor, and stator is elasticity twin-feed spiral face structure stator.
6. a kind of shaftless screw feeding screw pump according to claim 1, is characterized in that, the side of the described pump housing arranges discharge body, and described discharge body is fixedly connected with stator by pull bar, and the open end of described discharge body arranges flange-interface.
7. a kind of shaftless screw feeding screw pump according to claim 1, is characterized in that, the described pump housing is helical rotor pump body.
8. a kind of shaftless screw feeding screw pump according to claim 4, it is characterized in that higher value-2 * stator in the two of the external diameter of inner diameter-the first universal joint of described shaftless spiral feeding blade, the external diameter of the second universal joint and the eccentricity value <=40 millimeter of rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320313198.XU CN203463295U (en) | 2013-05-31 | 2013-05-31 | Shaftless screw feeding type screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320313198.XU CN203463295U (en) | 2013-05-31 | 2013-05-31 | Shaftless screw feeding type screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463295U true CN203463295U (en) | 2014-03-05 |
Family
ID=50175663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320313198.XU Expired - Lifetime CN203463295U (en) | 2013-05-31 | 2013-05-31 | Shaftless screw feeding type screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214070A (en) * | 2013-05-31 | 2014-12-17 | 杭州兴龙泵业有限公司 | Shaftless spiral feeding screw pump |
| CN104976129A (en) * | 2015-04-23 | 2015-10-14 | 李德生 | External drive barrier-free concave wall pump apparatus |
-
2013
- 2013-05-31 CN CN201320313198.XU patent/CN203463295U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214070A (en) * | 2013-05-31 | 2014-12-17 | 杭州兴龙泵业有限公司 | Shaftless spiral feeding screw pump |
| CN104976129A (en) * | 2015-04-23 | 2015-10-14 | 李德生 | External drive barrier-free concave wall pump apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |