CN201671811U - Medium- and low-voltage two-screw pump - Google Patents
Medium- and low-voltage two-screw pump Download PDFInfo
- Publication number
- CN201671811U CN201671811U CN201020212308XU CN201020212308U CN201671811U CN 201671811 U CN201671811 U CN 201671811U CN 201020212308X U CN201020212308X U CN 201020212308XU CN 201020212308 U CN201020212308 U CN 201020212308U CN 201671811 U CN201671811 U CN 201671811U
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- Prior art keywords
- screw rod
- pump
- screw
- outlet
- sliding shaft
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Abstract
The utility model relates to a medium- and low-voltage two-screw pump; linings are sleeved outside a driving screw and a driven screw of the pump to form a pump core assembly; both ends of the driving screw and the driven screw are respectively sleeved with sliding shaft sleeves, and the outer periphery of the four sliding shaft sleeves respectively contacts with the inner side surface of both ends of the linings; an inlet and an outlet on the pump body are respectively arranged in the radial direction of both sides of the pump body and are coaxial, and one side of the lining which corresponds to the outlet is provided with a balance hole. The medium- and low-voltage two-screw pump adopts a high-pressure balance structure, greatly reduces the screw deformation, reduces the screw wear and improves the service life of the screws. Both ends of the driving screw and the driven screw respectively adopt the sliding shaft sleeves, so that the friction of the screws is reduced and the power consumption of the pump is reduced. A pump core assembly structure is adopted, the pump core assembly can be singly detached and repaired, so that the production is not suspended when in maintenance; and the installation and detachment procedures are simplified, so that the maintenance and repairing are more convenient. The optimized position design of the inlet and the outlet on the pump body meet the attractive requirement of pipeline laying on the site of a user.
Description
Technical field
The utility model belongs to the screw pump technical field, is specifically related to the mesolow two screw pump.
Background technique
2G series two screw pump belongs to the mesolow two screw pump, be widely used in industries such as machinery, metallurgy, oil, chemical industry, electric power, building materials, the operating mode of above-mentioned industry 20%～30%, (about 1.5 hundred million yuan/year) 2G series two screw pump has more advantage, so 2G series two screw pump just has huge market potential.But there is the deficiency of following aspect in existing 2G series two screw pump: 1, safeguard inconvenient, when safeguarding because of taking screw pump apart, the trouble that causes the user to stop production; 2, pump housing upper inlet, the inconvenient pipe line arrangement in exit position.
Summary of the invention
In order to solve the problem that above-mentioned two screw pump exists, the mesolow two screw pump that the utility model provides a kind of and easy to maintenancely do not stop production, pipe line arrangement is attractive in appearance.
Concrete architecture advances technological scheme is such:
A kind of mesolow two screw pump comprises the pump housing, active screw rod, driven screw rod, front cover, rear end cover and safety valve, and initiatively screw rod and driven screw rod are meshing with each other, and the described pump housing is provided with import and outlet.
Described intermeshing active screw rod and driven screw rod outer cover are provided with lining and form the pump core assembly, initiatively screw rod and driven screw rod two ends are arranged with sliding shaft sleeve respectively, and the excircle of the described active screw rod and the sliding shaft sleeve at driven screw rod two ends contacts with described lining two ends inner side surface respectively; The footpath that import on the described pump housing and outlet lay respectively at pump housing both sides makes progress, and described import is coaxial with outlet; Lining one side corresponding with the outlet on the pump housing is provided with axial equalizing orifice, and this equalizing orifice is communicated with the screw rod two ends, realizes drawing high-pressure medium to the screw rod tail end face from the outlet end of the pump housing, and making initiatively, screw rod, driven screw rod are in state of equilibrium all the time.
Described sliding shaft sleeve outer end is provided with flanging, and the flanging of the sliding shaft sleeve at described active screw rod and driven screw rod two ends lays respectively at outside, described lining two ends.
Useful technique effect of the present utility model embodies in the following areas:
1, adopt the high pressure balance that active screw rod, driven screw rod are carried out balance (drawing high-pressure medium to the screw rod tail end face from the outlet end of the pump housing), making initiatively, screw rod, driven screw rod are in state of equilibrium all the time, reduce the screw rod distortion greatly, reduced the wearing and tearing of screw rod, improved the life-span of screw rod.Simultaneously adopt sliding shaft sleeve respectively, the friction of screw rod is reduced, reduced the power consumpiton of pump at active screw rod, driven screw rod two ends.
2, adopt initiatively screw rod and the outside sheathed lining composition of driven screw rod pump core assembly structure, the stationary part (being lining) of screw pump is separated with the pump housing; When screw pump is safeguarded, the pump core assembly can be disassembled maintenance separately, can not cause the trouble of stopping production in the time of can accomplishing to safeguard basically to the user; The pump core assembly is made the as a whole interchangeability that improved, and has simplified the installing/dismounting program, makes maintenance and repair more convenient.
3, the utility model has been optimized the import on the pump housing, exit position design, makes import, outlet be distributed in pump both sides and in alignment, has satisfied the requirement attractive in appearance of user's on-the-spot layout pipeline.Simultaneously top and bottom are designed to symmetric form, make the user change import, the exit position becomes very easy, promptly need not change the exchange that pipeline just can be realized the inlet/outlet position.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is a pump core assembly structural representation,
Fig. 3 is the import and the exit position schematic representation of the pump housing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, a kind of mesolow two screw pump comprises the pump housing 5, active screw rod 1, driven screw rod 2, front cover 6, rear end cover 3 and safety valve 4, initiatively screw rod 1 and driven screw rod 2 are meshing with each other, initiatively the organic envelope 7 of suit, bearing support 9, bearing 10 and sealing gland 8 on the input end of screw rod 1; The pump housing 5 is provided with import 14 and outlet 15, sees Fig. 3.
The active screw rod 1 of corresponding matching and driven screw rod 2 outer cover are equipped with lining 12 forms the pump core assembly, sees Fig. 2.Initiatively screw rod 1 and driven screw rod 2 two ends are respectively installed with sliding shaft sleeve 11, and each sliding shaft sleeve 11 outer end is provided with flanging.Initiatively the outer peripheral surface of the screw rod 1 and the sliding shaft sleeve 11 at driven screw rod 2 two ends contacts with lining 12 two ends inner side surfaces respectively, and the flanging of sliding shaft sleeve 11 lays respectively at outside, lining 12 two ends.The footpath that import 14 on the pump housing and outlet 15 lay respectively at the pump housing 5 both sides makes progress, and import is coaxial with outlet.Lining one side corresponding with the outlet 15 on the pump housing is provided with axial equalizing orifice 13, and this equalizing orifice is communicated with screw rod two ends, realizes drawing high-pressure medium to the screw rod tail end face from the outlet end of the pump housing, and making initiatively, screw rod 1, driven screw rod 2 are in state of equilibrium all the time.
Claims (2)
1. a mesolow two screw pump comprises the pump housing, active screw rod, driven screw rod, front cover, rear end cover and safety valve, and initiatively screw rod and driven screw rod are meshing with each other, and the described pump housing is provided with import and outlet, it is characterized in that:
Described intermeshing active screw rod and driven screw rod outer cover are provided with lining and form the pump core assembly, initiatively screw rod and driven screw rod two ends are arranged with sliding shaft sleeve respectively, and the excircle of the described active screw rod and the sliding shaft sleeve at driven screw rod two ends contacts with described lining two ends inner side surface respectively; The footpath that import on the described pump housing and outlet lay respectively at pump housing both sides makes progress, and described import is coaxial with outlet; Lining one side corresponding with the outlet on the pump housing is provided with axial equalizing orifice, and this equalizing orifice is communicated with the screw rod two ends, realizes drawing high-pressure medium to the screw rod tail end face from the outlet end of the pump housing, and making initiatively, screw rod, driven screw rod are in state of equilibrium all the time.
2. a kind of mesolow two screw pump according to claim 1 is characterized in that: described sliding shaft sleeve outer end is provided with flanging, and the flanging of the sliding shaft sleeve at described active screw rod and driven screw rod two ends lays respectively at outside, described lining two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020212308XU CN201671811U (en) | 2010-05-27 | 2010-05-27 | Medium- and low-voltage two-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020212308XU CN201671811U (en) | 2010-05-27 | 2010-05-27 | Medium- and low-voltage two-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671811U true CN201671811U (en) | 2010-12-15 |
Family
ID=43329223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020212308XU Expired - Lifetime CN201671811U (en) | 2010-05-27 | 2010-05-27 | Medium- and low-voltage two-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287368A (en) * | 2011-09-22 | 2011-12-21 | 黄山工业泵制造有限公司 | Composite balance single-suction double-screw pump |
| CN102444516A (en) * | 2011-11-25 | 2012-05-09 | 天津市瑞德螺杆泵制造技术有限公司 | Double-screw low-sulfur diesel injection pump |
| CN104520587A (en) * | 2012-06-28 | 2015-04-15 | 施特林工业咨询公司 | Screw pump |
| CN105485385A (en) * | 2015-12-29 | 2016-04-13 | 天津华科螺杆泵技术有限公司 | Safety valve and two-screw pump employing same |
-
2010
- 2010-05-27 CN CN201020212308XU patent/CN201671811U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287368A (en) * | 2011-09-22 | 2011-12-21 | 黄山工业泵制造有限公司 | Composite balance single-suction double-screw pump |
| CN102444516A (en) * | 2011-11-25 | 2012-05-09 | 天津市瑞德螺杆泵制造技术有限公司 | Double-screw low-sulfur diesel injection pump |
| CN104520587A (en) * | 2012-06-28 | 2015-04-15 | 施特林工业咨询公司 | Screw pump |
| CN105485385A (en) * | 2015-12-29 | 2016-04-13 | 天津华科螺杆泵技术有限公司 | Safety valve and two-screw pump employing same |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |