CN203809287U - Vertically-suspended type three-screw pump - Google Patents
Vertically-suspended type three-screw pump Download PDFInfo
- Publication number
- CN203809287U CN203809287U CN201420178423.8U CN201420178423U CN203809287U CN 203809287 U CN203809287 U CN 203809287U CN 201420178423 U CN201420178423 U CN 201420178423U CN 203809287 U CN203809287 U CN 203809287U
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- screw rod
- pump
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- lining
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Abstract
The utility model relates to a vertically-suspended type three-screw pump. The vertically-suspended type three-screw pump comprises a bushing, a front flange cover, a driving screw rod and two driven screw rods, and is characterized in that the driving screw rod and the two driven screw rods are arranged in a three-hole bushing which are sheathed in an integrated manner, the outlets of the three-hole bushing are connected by a pipe thread, a convex edge type balancing drum is arranged in the middle of the driving screw rod, concave edge type balancing drums are arranged at the tail parts of the driven screw rods, the convex edge type balancing drum of the driving screw rod and the concave edge type balancing drums symmetrically distributed at the tail parts of the driven screw rods are assembled to form a convex-concave wedge structure capable of balancing axial force, and a filter screen is arranged on a pump inlet in a vertical direction. The vertically-suspended type three-screw pump has the advantages that wet-type installation is adopted, the structure is simple and compact, the weight is light, the installation is flexible, the required space is small, the maintaining operation is convenient, low pressure fluctuation, ultra-low noise, no leakage and high reliability are achieved, additional filtering equipment, suction pipelines and the like are not required, a deep groove ball bearing can be lubricated automatically, oil fluid immersion in a vertical direction at the inlet is adopted, outlet connection is convenient and rapid, the pump meets the environment protection requirement, and is suitable for matching various functional lubricating oil station systems.
Description
Technical field
The utility model belongs to positive displacement screw pump manufacturing technology field, particularly relates to a kind of vertical hanging type three screw pump.
Background technique
At present, at many industrial fields such as petrochemical industry, metallurgy, electric power, iron and steel and machine-building, in the various function lubricating oil station systems such as hydraulic press, lathe, oil pressure support, rolling mill and deep hole drill, for the immersion type three-screw rod pump of lubrication and cooling should meet lightweight, installation and maintenance convenient and required installing space is little, sealing is without leakages, low-pressure pulsation, low noise and high reliability, and without increase extra tubular filter plant and suction line etc., import adopt vertical orientations oil-feed and outlet connection convenient etc.And traditional immersion type three-screw rod pump is due to pump structure relative complex and component are various, inertia is large, installation dimension is large, component matching gap is little, dismounting service technique is had relatively high expectations, need to increase extra tubular filter plant, adopt the pump of level orientation import also to need to increase extra suction line, sealing and easily leak, export the deficiencies such as connection is not convenient, be therefore not suitable for very much working in above-mentioned various function lubricating oil station systems.
Summary of the invention
The utility model provides a kind of and can wet type installs for solving the technical problem existing in known technology, simple and compact for structure, lightweight, flexible for installation, little, easy to maintenance, the low-pressure pulsation of taking up room, super low noise, without leaking and the vertical hanging type three screw pump of high reliability.
The technological scheme that the utility model is taked for the technical problem existing in solution known technology is:
Vertical hanging type three screw pump, comprise lining, flange protecgulum, active screw rod and the two driven screw rods that are meshed with active screw rod, it is characterized in that: in described active screw rod is placed in driven screw rod the three hole linings that its outlet adopts pipe thread to be connected and body cover is unified, described active screw rod middle part is provided with flange-type balancing drum, the afterbody of described driven screw rod is provided with recessed edge type balancing drum, the recessed edge type balancing drum of the flange-type balancing drum of described active screw rod and the driven screw rod tail being arranged symmetrically with install form can balancing axial thrust convex-concave wedging structure, described pump inlet vertical orientations is provided with filter screen, described filter screen uses back-up ring and lining to fix by hole.
The utility model can also adopt following technological scheme:
Described lining and flange protecgulum adopt seam location, and described lining is connected with flange protecgulum by fillister head screw, and described flange protecgulum and lining outlet plenum connect.
Described filter screen adopts sheet filter screen.
Described active screw rod one end is shaped with the shaft shoulder, and by being arranged on the deep groove ball bearing axially locating on flange protecgulum inner pedestal.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, initiatively screw rod is placed in three hole linings of body cover unification with the two driven screw rods that are arranged symmetrically with, and pump discharge adopts pipe thread to connect, and pipe thread seal is high, size is little and it is convenient to connect.Pump inlet adopts vertical orientations immerse fluid and carry sheet filter screen, increases extra tubular filter plant and suction line etc. without user, can dwindle the fuel tank degree of depth.Lining is not established valve base of safety valve, can reduce boundary dimension, weight reduction, reduces inertia and easy to manufacture and the product manufacturing cycle is short.Pump inlet vertical orientations is provided with filter screen, has avoided level orientation immersion type three-screw rod pump also to need to increase the excessive deficiency of installing space that extra tubular filter plant and suction line etc. cause.Sheet filter screen is fixed on the suction side of vertical hanging type three screw pump with back-up ring by hole, convenient maintenance and replacement is simple.This vertical hanging type three screw pump wet type is installed without shaft seal, is immersed in nature in fuel tank completely and occurs without the problem of any leakage, the problem of having avoided traditional immersion type three-screw rod pump sealing to leak.The lining of this three screw pump is directly connected with flange protecgulum, without using asbestos washer, meets the healthy of environmental protection requirement and maintenance staff completely.Lining and flange protecgulum adopt seam location, connect by two hexagon socket cap head screws, simple and compact for structure, easy to manufacture, conformability is good and operation and maintenance is very convenient simply.This three screw pump number of spare parts is simplified, and volume is only equivalent to 1/2 of traditional immersion type three-screw rod pump, lightweight, flexible for installation and requisite space is little.Initiatively the middle part of screw rod and the tail end of driven screw rod adopt convex-concave balancing drum wedging designs simplification traditional immersion type three-screw rod pump need configure the locating stud of balance set and spacing balance set, the initiatively spacing back-up ring from bar of screw head, transient equilibrium dish that active screw rod is roomy etc., only need the recessed edge type balancing drum of driven screw rod tail end to be installed to the initiatively flange-type balancing drum of screw rod, the convex-concave wedging of balancing drum can be spacing again can balancing axial thrust from bar.Flange protecgulum and lining outlet plenum connect, pumped medium can self oiling deep groove ball bearing, forming the required component of oil circuit greatly reduces, after its internal structure is simplified, very unobstructed of the oil circuit that the matching gap of component makes media flow, can carry high sticky medium, avoided traditional three screw pump because component matching gap is little, the oil circuit of the media flow causing does not freely even stop up and causes that internal pressure rising and local pyrexia etc. can run well by harm pump.This vertical hanging type three screw pump is highly suitable in various function lubricating oil station systems and works.
Brief description of the drawings
Fig. 1 is structural front view of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is that figure is cutd open depending on office in a left side of Fig. 1;
Fig. 4 is the right elevation of Fig. 1;
Fig. 5 is initiatively screw rod and driven screw rod convex-concave balancing drum wedge part schematic diagram of the utility model.
In figure: 1, lining; 2, flange protecgulum; 3, active screw rod; 4, driven screw rod; 5, hexagon socket cap head screw; 6, shaft block ring; 7, hole back-up ring; 8, supporting bead; 9, key; 10, deep groove ball bearing; 11, filter screen.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-Fig. 5, vertical hanging type three screw pump, comprises lining 1, flange protecgulum 2, active screw rod 3 and the two driven screw rods 4 that are meshed with active screw rod.In described active screw rod is placed in driven screw rod the three hole linings 1 that its outlet adopts pipe thread to be connected and body cover is unified, described active screw rod middle part is provided with flange-type balancing drum, the afterbody of described driven screw rod is provided with recessed edge type balancing drum, the recessed edge type balancing drum of the flange-type balancing drum of described active screw rod and the driven screw rod tail being arranged symmetrically with install form can balancing axial thrust convex-concave wedging structure, described pump inlet vertical orientations is provided with filter screen 11, and described filter screen uses back-up ring 7 and lining to fix by hole.
In the present embodiment, described active screw rod one end is shaped with the shaft shoulder, and by being arranged on deep groove ball bearing 10 axially locating on flange protecgulum inner pedestal, the shaft shoulder of described deep groove ball bearing inner ring by active screw rod and shaft block ring 6 and supporting bead 8 are realized bi-directional axial and are fixed, and outer ring adopts the bearing mounting base of flange protecgulum setting to realize bi-directional axial with lining 1 right side and locates.In active screw rod one end, key 9 is also housed.
In the present embodiment, described lining and flange protecgulum adopt seam location, and described lining is connected with flange protecgulum by hexagon socket cap head screw 5, and lining outlet plenum and flange protecgulum connect, and pumped medium can self oiling deep groove ball bearing.
In the present embodiment, described filter screen 11 adopts sheet filter screen.
Operating principle of the present utility model is:
When active screw rod rotates and drives the driven screw rod rotation being engaged with that screw spiral section is divided into several active chambers under motivational drive.Along with bolt rotary, the active chamber of each spiral chute shape all constantly shifts to extruding chamber one side from the suction chamber of pump, and the not Operating In Persistent Current Mode chamber volume communicating with suction chamber is constantly increased, and produces imbibition, make working chamber volume be increased to maximum value, become Operating In Persistent Current Mode chamber.Move identically with the extrusion of pump along axis, form again not Operating In Persistent Current Mode chamber, its volume is constantly reduced, carry out hydraulic fluid, thereby realize the conveying of boosting continuously of liquid.
Described pump initiatively middle part and the driven screw rod tail of screw rod is realized axial force balance by convex-concave balancing drum wedging, flange protecgulum and lining outlet plenum connect, high-pressure medium in outlet plenum infiltrates the deep groove ball bearing in flange Front Cover Bearing seat by the convex-concave balancing drum gap of screw rod and driven screw rod wedging initiatively, then flow into fuel tank by flange protecgulum right side endoporus, realize pumped medium self oiling deep groove ball bearing.
This vertical hanging type three screw pump wet type is installed, simple and compact for structure, number of components is simplified, lightweight, aesthetic in appearance, flexible for installation and requisite space is little, easy to maintenance, low-pressure pulsation, super low noise, without leaking and high reliability, and adopt vertical orientations to immerse fluid, outlet without extra filter plant and suction line etc., bearing self oiling, import to connect convenient and meet the novel vertical hanging type three screw pump of the suitable supporting various function lubricating oil station systems such as environmental protection.
Claims (4)
1. a vertical hanging type three screw pump, comprise lining, flange protecgulum, active screw rod and the two driven screw rods that are meshed with active screw rod, it is characterized in that: in described active screw rod is placed in driven screw rod the three hole linings that its outlet adopts pipe thread to be connected and body cover is unified, described active screw rod middle part is provided with flange-type balancing drum, the afterbody of described driven screw rod is provided with recessed edge type balancing drum, the recessed edge type balancing drum of the flange-type balancing drum of described active screw rod and the driven screw rod tail being arranged symmetrically with install form can balancing axial thrust convex-concave wedging structure, described pump inlet vertical orientations is provided with filter screen, described filter screen uses back-up ring and lining to fix by hole.
2. vertical hanging type three screw pump according to claim 1, is characterized in that: described lining and flange protecgulum adopt seam location, and described lining is connected with flange protecgulum by fillister head screw, and described flange protecgulum and lining outlet plenum connect.
3. vertical hanging type three screw pump according to claim 1, is characterized in that: described filter screen adopts sheet filter screen.
4. vertical hanging type three screw pump according to claim 1, is characterized in that: described active screw rod one end is shaped with the shaft shoulder, and by being arranged on the deep groove ball bearing axially locating on flange protecgulum inner pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178423.8U CN203809287U (en) | 2014-04-14 | 2014-04-14 | Vertically-suspended type three-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178423.8U CN203809287U (en) | 2014-04-14 | 2014-04-14 | Vertically-suspended type three-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809287U true CN203809287U (en) | 2014-09-03 |
Family
ID=51448045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420178423.8U Expired - Fee Related CN203809287U (en) | 2014-04-14 | 2014-04-14 | Vertically-suspended type three-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984088A (en) * | 2019-12-02 | 2021-06-18 | Fte汽车有限责任公司 | Liquid pump, in particular for supplying a transmission of an electric or hybrid module of a vehicle |
-
2014
- 2014-04-14 CN CN201420178423.8U patent/CN203809287U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984088A (en) * | 2019-12-02 | 2021-06-18 | Fte汽车有限责任公司 | Liquid pump, in particular for supplying a transmission of an electric or hybrid module of a vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20180414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |