CN207178193U - Screw pump - Google Patents
Screw pump Download PDFInfo
- Publication number
- CN207178193U CN207178193U CN201721008064.1U CN201721008064U CN207178193U CN 207178193 U CN207178193 U CN 207178193U CN 201721008064 U CN201721008064 U CN 201721008064U CN 207178193 U CN207178193 U CN 207178193U
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- CN
- China
- Prior art keywords
- screw rod
- screw
- pump
- pump housing
- guide cylinder
- 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.)
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- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Electromagnetic Pumps, Or The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It the utility model is related to a kind of screw pump, belong to screw pump technology field, including the pump housing, it is sleeved on the pump case of pump body, pump case is internally provided with the conveyor chamber conveyed for liquid, driving screw is provided with conveyor chamber and with driving screw threaded engagement from screw rod, liquid storage cylinder is formed between pump case rear end and the pump housing, the stopping means for preventing that axial float occurs when being rotated from screw rod is provided with liquid storage cylinder, stopping means one end is fixedly connected on the pump housing, other end direction is from screw rod and inconsistent with the termination from screw rod, the axis of stopping means is conllinear with the axis from screw rod.With reduce from the axial float of screw rod the advantages of.
Description
Technical field
Screw pump technology field is the utility model is related to, more particularly to a kind of screw pump.
Background technology
Screw pump is to engage spatial volume change and movement with what screw rod was formed to convey liquid or be allowed to by the pump housing
The drum pump of supercharging, screw pump are divided into single-screw (single screw) pump and multi screwpump by many threads, wherein, in sieve screw pump, when actively
When screw rod rotates, driving and rotated together with the driven screw of engagement, the screw rod engagement spatial volume of suction chamber one end gradually increases,
Pressure reduces, and liquid enters engagement spatial volume under differential pressure action, when volume increases to maximum and forms an annular seal space, liquid
Body is just one by one in annular seal space continuously along axial movement, until discharge chamber one end, this is the screw rod engagement for discharging chamber one end
Spatial volume is gradually reduced, and liquid is discharged.
In the application field of multi screwpump, the application of three screw pump is relatively broad, and traditional three screw pump exist with
Lower defect：In the pump housing from screw pump equipment work run when, especially high-speed cruising when, easily produced from screw rod axially alter
It is dynamic, the overall work of pump has not only been had influence on, and easily produce and caused damage is rushed by mechanical friction Peng, while can also produce
The improper vibrations of the pump housing and noise.
Utility model content
The purpose of this utility model is to provide a kind of screw pump, its have reduce from the axial float of screw rod the advantages of.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of screw pump, including the pump housing, are sleeved on the pump case of pump body, pump case be internally provided with convey for liquid it is defeated
Chamber is sent, driving screw is provided with conveyor chamber and is formed with driving screw threaded engagement between screw rod, pump case rear end and the pump housing
Liquid storage cylinder, the stopping means for preventing that axial float occurs when being rotated from screw rod is provided with liquid storage cylinder, stopping means one end is fixed
Be connected on the pump housing, the other end towards from screw rod and inconsistent with the termination from screw rod, the axis of stopping means with from screw rod
Axis it is conllinear.
By using above-mentioned technical proposal, it will be withstood by stopping means from the rear end of screw rod, so as to be rotated from screw rod
Caused axial play power stops, prevents it from moving in the axial direction.
The utility model is further arranged to：Stopping means includes the block for being fixed on pump body, and block is located at from spiral shell
On the extended line in pole length direction, block is close to the elastic parts that automatically retractable is provided with from one end of screw rod, elastic parts
Axis it is conllinear with the axis from screw rod.
By using above-mentioned technical proposal, the play power by elastic parts buffering from screw rod axial direction, so as to reduce from spiral shell
The play of bar.
The utility model is further arranged to：Elastic parts includes being fixedly connected on the block direction from the side of screw rod
The guide cylinder on surface, the gag lever post being slidably connected inside guide cylinder and with guide cylinder is sleeved on, and is limited inside guide cylinder
Elastic component between position bar and block.
By using above-mentioned technical proposal, by resilient element urges gag lever post, gag lever post is propped up from screw rod, so as to from
One thrust of screw rod, to buffer the power from screw rod axial float.
The utility model is further arranged to：One end that gag lever post is sleeved on inside guide cylinder is provided with outward flange, evagination
The internal diameter of edge and guide cylinder matches, and the one end of guide cylinder away from block is provided with the diameter of inward flange, inward flange and gag lever post
Match.
By using above-mentioned technical proposal, place and depart between gag lever post and guide cylinder.
The utility model is further arranged to：Gag lever post close to from one end of screw rod in cone.
By using above-mentioned technical proposal, reduce the area that gag lever post contacts with from screw rod, so as to reduce frictional force.
The utility model is further arranged to：Centre bore is provided with from screw rod close to one end termination of conveying cavity rear end.
By using above-mentioned technical proposal, place from screw rod rotate when, gag lever post is offset with the axial centre from screw rod, is made
Into the damage from screw rod.
The utility model is further arranged to：The outside rear and front end of the pump housing is provided with hanger, and hanger is fixedly connected on pump
On body.
By using above-mentioned technical proposal, boom hoisting is facilitated smoothly to sling screw pump.
In summary, the utility model has the advantages that：By the stopping means of elasticity, will rotated from screw rod
When offset to the power of conveyor chamber rear end axial direction play by elastic component buffering, so as to reduce from screw rod when rotating to axial direction
The displacement of play.
Brief description of the drawings
Fig. 1 is the axonometric drawing of screw pump；
Fig. 2 is the configuration schematic diagram of screw pump；
Fig. 3 is the longitudinal sectional view of screw pump；
Fig. 4 is the transverse sectional view of screw pump；
Fig. 5 is the partial enlarged drawing of part A in Fig. 4.
In figure, 1, the pump housing；11st, feed tube；12nd, liquid outlet；13rd, liquid storage cylinder；2nd, pump case；21st, inlet；22nd, conveyor chamber；
3rd, driving screw；4th, from screw rod；41st, centre bore；5th, bearing；6th, pump cover；7th, stopping means；71st, block；72nd, guide cylinder；721st, it is interior
Flange；73rd, gag lever post；731st, outward flange；74th, elastic component；8th, motor；9th, hanger.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of screw pump, as shown in Figure 1 and Figure 2, including pump case 2, pump case 2 and the pump housing are set with the portion of the pump housing 1, the pump housing 1
1 is fixedly connected.With reference to Fig. 3, the inlet 21 of pump case 2 communicates with the feed tube 11 on the pump housing 1, and liquid passes through entering on the pump housing 1
Liquid pipe 11 is flowed into pump case 2.
As shown in Figure 2 and Figure 3, in the inside of pump case 2, the conveyor chamber 22 for conveying liquid is provided with, conveyor chamber 22 runs through pump case
2 length direction.Conveyor chamber 22 is internally provided with driving screw 3 and positioned at the both sides of driving screw 3 from screw rod 4, driving screw 3 with
It is engaged from the screw thread of screw rod 4.Driving screw 3 is fixed in the conveyor chamber 22 of pump case 2 by bearing 5.Bearing 5 is matched somebody with somebody by really up to the mark
Close the inside for being fixed on the pump housing 1.In the front end of the pump housing 1, it is provided with the pump cover 6 of pump cover 6. and is bolted on the pump housing 1.
In the outside front ends of the pump housing 1, the motor 8 for driving driving screw 3 to rotate, the output shaft of driving screw 3 and motor 8 are provided with
Pass through key connection.By the rotation of the output shaft of motor 8, driving screw 3 is driven to rotate, driving screw 3 drives from screw rod 4 and rotated, so as to
The liquid entered from inlet 21 in conveyor chamber 22 is delivered to the rear end of conveyor chamber 22, finally via the liquid outlet on the pump housing 1
12 outflows.
At the outside both ends of the pump housing 1, be provided with the hanger 9 for the pump housing 1 being sling for boom hoisting, hanger 9 is fixedly connected on pump
On body 1.Hanger 9 positioned at the both ends of the pump housing 1 is located along the same line with feed tube 11.
As shown in Figure 4, Figure 5, inside the rear end of the pump housing 1, liquid outlet 12 is provided with, between liquid outlet 12 and pump case 2
A liquid storage cylinder 13 is formed, the restricted stopping means 7 of play vertically when being rotated from screw rod 4 is set in the liquid storage cylinder 13, limited
Position device 7 includes the block 71 being fixedly connected in the internal side wall of the pump housing 1, and block 71 is located at from the axially-extending line of screw rod 4,
And the surface of block 71 is parallel with from the end face of screw rod 4.In block 71 towards from a side surface of screw rod 4, guide cylinder is extended with
72, guide cylinder is fixedly connected on block 71.Gag lever post 73 is housed in the internal sleeve of guide cylinder 72, wherein gag lever post 73 is with being oriented to
Cylinder 72 is slidably connected, and between gag lever post 73 and block 71, is provided with elastic component 74, elastic component 74 can be spring or other
Elastic object, the one end of elastic component 74 and block 71 are inconsistent, and the other end and gag lever post 73 are inconsistent.
The one end of guide cylinder 72 away from block 71, the inside diameter hoop direction of guide cylinder 72 are extended with inward flange 721, inward flange
The external diameter of internal diameter and gag lever post 73 matches.One end termination inside guide cylinder 72 is sleeved in gag lever post 73, circumferencial direction is stretched
Go out to have outward flange 731, the internal diameter of the wherein diameter of outward flange 731 and guide cylinder 72 matches.Pass through outward flange 731 and inward flange
721 cooperation, so as to prevent gag lever post 73 from departing from guide cylinder 72.The one end of gag lever post 73 away from guide cylinder 72, in coniform.
As shown in Figure 4, Figure 5, centre bore 41 is provided with, in close to one end termination of the rear end of conveyor chamber 22 from screw rod 4
Heart hole 41 is connected with one of gag lever post 73 with circular cone.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (7)
1. a kind of screw pump, including the pump housing（1）, it is sleeved on the pump housing（1）Internal pump case（2）, pump case（2）It is internally provided with feed flow
The conveyor chamber of body conveying（22）, the conveyor chamber（22）Inside it is provided with driving screw（3）And and driving screw（3）Threaded engagement from
Screw rod（4）, the pump case（2）Rear end and the pump housing（1）Between form liquid storage cylinder（13）, it is characterised in that：The liquid storage cylinder（13）
Inside being provided with prevents from screw rod（4）The stopping means of axial float occurs during rotation（7）, the stopping means（7）One end is fixed
It is connected to the pump housing（1）On, the other end is towards from screw rod（4）And with from screw rod（4）Termination it is inconsistent, the stopping means（7）
Axis with from screw rod（4）Axis it is conllinear.
2. screw pump according to claim 1, it is characterised in that：The stopping means（7）Including being fixed on the pump housing（1）It is interior
The block in portion（71）, the block（71）Positioned at from screw rod（4）On the extended line of length direction, the block（71）Close to from spiral shell
Bar（4）One end be provided with the elastic parts of automatically retractable, the axis of the elastic parts with from screw rod（4）Axis
Collinearly.
3. screw pump according to claim 2, it is characterised in that：The elastic parts includes being fixedly connected on the block
（71）Towards from screw rod（4）A side surface guide cylinder（72）, it is sleeved on guide cylinder（72）Internal and and guide cylinder（72）It is sliding
The gag lever post of dynamic connection（73）, and positioned at guide cylinder（72）Internal gag lever post（73）With block（71）Between elastic component
（74）.
4. screw pump according to claim 3, it is characterised in that：The gag lever post（73）It is sleeved on guide cylinder（72）It is internal
One end be provided with outward flange（731）, the outward flange（731）With guide cylinder（72）Internal diameter match, the guide cylinder
（72）One end away from block is provided with inward flange（721）, the inward flange（721）With gag lever post（73）Diameter match.
5. screw pump according to claim 4, it is characterised in that：The gag lever post（73）Close to from screw rod（4）One end
In cone.
6. screw pump according to claim 1, it is characterised in that：It is described from screw rod（4）Close to conveyor chamber（22）Rear end
One end termination is provided with centre bore（41）.
7. screw pump according to claim 1, it is characterised in that：The pump housing（1）Outside rear and front end be provided with and hang
Ear（9）, the hanger（9）It is fixedly connected on the pump housing（1）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008064.1U CN207178193U (en) | 2017-08-11 | 2017-08-11 | Screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008064.1U CN207178193U (en) | 2017-08-11 | 2017-08-11 | Screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178193U true CN207178193U (en) | 2018-04-03 |
Family
ID=61740521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721008064.1U Active CN207178193U (en) | 2017-08-11 | 2017-08-11 | Screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178193U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761996A (en) * | 2019-12-12 | 2020-02-07 | 昆山新莱洁净应用材料股份有限公司 | A twin screw pump |
| CN115628214A (en) * | 2022-10-11 | 2023-01-20 | 拉法泵业科技（宁波）有限公司 | An improved twin-screw pump |
-
2017
- 2017-08-11 CN CN201721008064.1U patent/CN207178193U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761996A (en) * | 2019-12-12 | 2020-02-07 | 昆山新莱洁净应用材料股份有限公司 | A twin screw pump |
| CN115628214A (en) * | 2022-10-11 | 2023-01-20 | 拉法泵业科技（宁波）有限公司 | An improved twin-screw pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301899 No. 1, Tianxing Road, energy conservation and environmental protection industrial zone, Baodi District, Tianjin Patentee after: Hailink hydraulic technology (Tianjin) Co.,Ltd. Address before: 301899 No. 1, Tianxing Road, energy conservation and environmental protection industrial zone, Baodi District, Tianjin Patentee before: JINMAISI HYDRAULIC EQUIPMENT (TIANJIN) CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301899 No. 1, Tianxing Road, energy conservation and environmental protection industrial zone, Baodi District, Tianjin Patentee after: Hailink hydraulic technology (Tianjin) Co.,Ltd. Address before: 301899 No. 1, Tianxing Road, energy conservation and environmental protection industrial zone, Baodi District, Tianjin Patentee before: JINMAISI HYDRAULIC EQUIPMENT (TIANJIN) CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |