CN107795482A - A kind of universal screw pump - Google Patents
A kind of universal screw pump Download PDFInfo
- Publication number
- CN107795482A CN107795482A CN201610832822.5A CN201610832822A CN107795482A CN 107795482 A CN107795482 A CN 107795482A CN 201610832822 A CN201610832822 A CN 201610832822A CN 107795482 A CN107795482 A CN 107795482A
- Authority
- CN
- China
- Prior art keywords
- universal
- universal joint
- stator
- connector head
- head rod
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to a kind of universal screw pump, including stator, the first universal joint, the second universal joint and Universal connector head rod；The stator has cavity structure；First universal joint, the second universal joint and Universal connector head rod are respectively positioned in the cavity of stator；Transmission concave surface is equipped with the inside of first universal joint and the second universal joint and reverses binding face；The Universal connector head rod both ends are equipped with transmission convex surface and circular beat face；The both ends of the Universal connector head rod are rotatablely connected with the first universal joint and the second universal joint respectively；The transmission concave surface and transmission convex surface match；The torsion binding face and circular beat face match；Universal connector head rod both ends in the universal screw pump are more prismatic orbicule structures, and processing cost is low, and noise is small, and wearability is high, and endurance is strong, and being capable of smooth rotation.
Description
Technical field
The present invention relates to screw pump technology field, specially a kind of universal 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 is divided into single-screw (single screw) pump, Quimby pump and three screw pump etc. by screw rod number.When driving screw rod rotates
When, drive the driven screw engaged to rotate together, the screw rod engagement spatial volume of suction chamber one end gradually increases, pressure drop
It is low.Liquid enters engagement spatial volume under differential pressure action.When volume increases to maximum and forms an annular seal space, liquid just exists
One by one continuously along axial movement in annular seal space, until discharge chamber one end.At this moment the screw rod engagement space for discharging chamber one end holds
Product is gradually reduced, and liquid is discharged.The operation principle of screw pump is similar to gear pump, simply be instead of in structure with screw rod
Gear.The flow and pressure pulse very little of screw pump, noise and with small vibration, there is suction capacity, but screw rod processing is more difficult.Pump has
Two kinds of structures of single-suction and double-suction type, but single-screw (single screw) pump only has single-suction.Pump must wear safety valve, and (single-screw (single screw) pump need not match somebody with somebody
Band), to prevent for some reason as discharge blockage makes the outlet pressure of pump exceed feasible value and damages pump or prime mover.It is single
Screw transports pump, and its main working parts are the screw rods (title rotor) of eccentric screw body and inner surface is in bifilar helix face
Screw rod bushing (weighed son).Its operation principle is that when motor drives pump shaft to rotate on the one hand screw rod revolves around the axis of itself
Turn, on the other hand it is rolled along sleeve inner surface again, then forms the sealed chamber of pump.Screw rod each rotation, in annular seal space
Liquid pushes ahead a pitch, and with the continuous rotation of screw rod, liquid spiral fashion presses to another from an annular seal space
Annular seal space, finally extrude the pump housing.Screw pump is a kind of machinery of new conveying liquid, has simple in construction, work safety can
Lean on, easy maintenance, go out the advantages that liquid continuous uniform, pressure stability.
At present, universal screw pump is cross universal screw rod, and cross universal screw-rod structure is the first joint and Universal connector head rod
It is to be linked with a pin, one section of realization is swung up and down, and other end is realized and swung, high to requirement on machining accuracy, production
Cost is big；Discontinuity during work, stability is low during work, and pin endurance is low, and pin is broken universal screw rod namely report
It is useless, cost increase.
The content of the invention
It is an object of the invention to provide a kind of universal screw pump, and it can effectively solve the problem that and is asked present in background technology
Topic.
To achieve the above object, the present invention provides following technical scheme：A kind of universal screw pump, including motor, shaft coupling,
Import, stator, screw rod, outlet stubs, main shaft, the first universal joint, the second universal joint and Universal connector head rod；The stator tool
There is cavity structure；First universal joint, the second universal joint and Universal connector head rod are respectively positioned in the cavity of stator；Described
Transmission concave surface is equipped with the inside of one universal joint and the second universal joint and reverses binding face；The Universal connector head rod both ends are all provided with
There are transmission convex surface and circular beat face；The both ends of the Universal connector head rod turn with the first universal joint and the second universal joint respectively
Dynamic connection；The transmission concave surface and transmission convex surface match；The torsion binding face and circular beat face match；Described second
Universal joint is fixedly connected with main shaft；The main shaft passes through stator, is fixedly connected by shaft coupling with the output shaft of motor；It is described
First universal joint is fixedly connected with screw rod；The screw rod is located in the cavity structure of stator；The stator upper end is provided with import,
Outlet stubs are provided with close to the side of screw rod.
Further, axle envelope is provided between the main shaft and stator.
Further, junction, the second universal joint and the Universal connector head rod of first universal joint and Universal connector head rod
Junction, be equipped with sealing shroud.
Further, first universal joint and the second universal joints structure are consistent.
Further, it is equipped with screens joint steel ball on the inside of first universal joint and on the inside of the second universal joint.
Further, fixed at the two-port of the sealing shroud by jump ring.
Compared with prior art, the beneficial effects of the invention are as follows：The universal screw pump is simple in construction, easy to process；It is universal
The both ends of connector rod are more prismatic orbicule structures, and processing cost is low, uniform force, being capable of smooth rotation；By sealing shroud 41,
Completely cut off the contact of universal joint inside and Universal connector head rod both ends and outside, prevent foreign matter from entering, reduce abrasion, extend use
Life-span.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the first universal joint sectional view in the present invention；
Fig. 3 is Universal connector head rod structural representation in the present invention；
In reference：11. motor；12. shaft coupling；13. axle envelope；14. import；15. stator；16. screw rod；17. outlet
Short tube；18. main shaft；21. the first universal joint；22. the second universal joint；23. screens joint steel ball；31. Universal connector head rod；
41. sealing shroud；A. it is driven concave surface；B. binding face is reversed；C. it is driven convex surface；D. circular beat face.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of universal screw pump, including motor 11, shaft coupling
12nd, import 14, stator 15, screw rod 16, outlet stubs 17, main shaft 18, the first universal joint 21, the second universal joint 22 and universal
Connector rod 31；The stator 15 has cavity structure；First universal joint 21, the second universal joint 22 and Universal connector head rod
31 are respectively positioned in the cavity of stator 15；The inner side of first universal joint, 21 and second universal joint 22 is equipped with transmission concave surface a
With torsion binding face b；The both ends of Universal connector head rod 31 are equipped with transmission convex surface c and circular beat face d；The Universal connector head rod
31 both ends are rotatablely connected with the first universal joint 21 and the second universal joint 22 respectively；The transmission concave surface a and transmission convex surface c
Match；The torsion binding face b and circular beat face d matches；Second universal joint 22 is fixedly connected with main shaft 18；
The main shaft 18 passes through stator 15, is fixedly connected by shaft coupling 12 with the output shaft of motor 11；First universal joint 21
It is fixedly connected with screw rod 16；The screw rod 16 is located in the cavity structure of stator 15；The upper end of stator 15 is provided with import 14, leans on
The side of nearly screw rod 16 is provided with outlet stubs 17；Axle envelope 13 is provided between the main shaft 18 and stator 15；First Universal connector
First 21 and the junction of the junction of Universal connector head rod 31, the second universal joint 22 and Universal connector head rod 31, it is equipped with sealing shroud
41；First universal joint 21 is consistent with the structure of the second universal joint 22；The inner side of first universal joint 21 and the 20000th
Screens joint steel ball 23 is equipped with to the inner side of joint 22；Fixed at the two-port of the sealing shroud 41 by jump ring.
The present invention is at work：Liquid is entered in stator 15 by import 14；Start motor 11, driven by shaft coupling 12
Main shaft 18 rotates, and drives screw rod 16 to rotate by Universal connector head rod 31；Screw rod 16 rotates around the axis of itself, while again along fixed
Sub 15 inner surfaces roll, formation sealed chamber, each rotation of screw rod 16, and the liquid in sealed chamber pushes ahead a pitch,
With the continuous rotation of screw rod 16, liquid is extruded by outlet stubs 17.
The both ends of Universal connector head rod 31 are more prismatic orbicule structures, in the first universal joint 21 and the second universal joint 22
Side is equipped with transmission concave surface a and reverses binding face b；The both ends of Universal connector head rod 31 are equipped with transmission convex surface c and circular beat face d；
The both ends of Universal connector head rod 31 are rotatablely connected with the first universal joint 21 and the second universal joint 22 respectively；It is driven concave surface a and biography
Dynamic convex surface c matches；Reverse binding face b and circular beat face d to match, processing cost is low, uniform force, can steadily turn
It is dynamic；By sealing shroud 4, the contact of isolation universal joint inside and the both ends of Universal connector head rod 31 and outside, prevent foreign matter from entering,
Abrasion is reduced, is increased the service life；Axle envelope 13 prevents liquid from being leaked between stator 15 and main shaft 18；Utilize screens joint steel ball
23, prevent Universal connector head rod 31 from being come off from the first universal joint 21 or the second universal joint 22.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
- A kind of 1. universal screw pump, it is characterised in that：Including motor (11), shaft coupling (12), import (14), stator (15), spiral shell Bar (16), outlet stubs (17), main shaft (18), the first universal joint (21), the second universal joint (22) and Universal connector head rod (31)；The stator (15) has cavity structure；First universal joint (21), the second universal joint (22) and universal joint Bar (31) is respectively positioned in the cavity of stator (15)；It is equipped with the inside of first universal joint (21) and the second universal joint (22) It is driven concave surface (a) and reverses binding face (b)；Universal connector head rod (31) both ends are equipped with transmission convex surface (c) and circular beat Face (d)；The both ends of the Universal connector head rod (31) rotate with the first universal joint (21) and the second universal joint (22) respectively to be connected Connect；Transmission concave surface (a) and transmission convex surface (c) match；The torsion binding face (b) and circular beat face (d) match； Second universal joint (22) is fixedly connected with main shaft (18)；The main shaft (18) passes through stator (15), passes through shaft coupling (12) output shaft with motor (11) is fixedly connected；First universal joint (21) is fixedly connected with screw rod (16)；The spiral shell Bar (16) is located in the cavity structure of stator (15)；Stator (15) upper end is provided with import (14), close to the side of screw rod (16) End is provided with outlet stubs (17).
- A kind of 2. universal screw pump according to claim 1, it is characterised in that：Between the main shaft (18) and stator (15) Provided with axle envelope (13).
- A kind of 3. universal screw pump according to claim 1, it is characterised in that：First universal joint (21) and universal The junction of the junction of connector rod (31), the second universal joint (22) and Universal connector head rod (31), is equipped with sealing shroud (41).
- A kind of 4. universal screw pump according to claim 1, it is characterised in that：First universal joint (21) and second Universal joint (22) structure is consistent.
- A kind of 5. universal screw pump according to claim 1, it is characterised in that：On the inside of first universal joint (21) and Screens joint steel ball (23) is equipped with the inside of second universal joint (22).
- A kind of 6. universal screw pump according to claim 3, it is characterised in that：It is equal at the two-port of the sealing shroud (41) Fixed by jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832822.5A CN107795482A (en) | 2016-09-01 | 2016-09-01 | A kind of universal screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832822.5A CN107795482A (en) | 2016-09-01 | 2016-09-01 | A kind of universal screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795482A true CN107795482A (en) | 2018-03-13 |
Family
ID=61530992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832822.5A Pending CN107795482A (en) | 2016-09-01 | 2016-09-01 | A kind of universal screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107795482A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1063975A (en) * | 1965-03-17 | 1967-04-05 | Eugen Soeding | A pumping and separating apparatus |
| JP2004052655A (en) * | 2002-07-19 | 2004-02-19 | Heishin Engineering & Equipment Co Ltd | Uniaxial eccentric screw pump |
| CN2695691Y (en) * | 2004-04-19 | 2005-04-27 | 西安海兴曲杆泵业工程有限公司 | Link structure of high-pressure, large flow single screw pump |
| CN201037458Y (en) * | 2007-05-24 | 2008-03-19 | 杭州兴龙泵业有限公司 | Deep-etching-resisting screw pump |
| CN206175207U (en) * | 2016-09-01 | 2017-05-17 | 温岭市钜恒机械有限公司 | Universal spiral shell sucker -rod pumping |
-
2016
- 2016-09-01 CN CN201610832822.5A patent/CN107795482A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1063975A (en) * | 1965-03-17 | 1967-04-05 | Eugen Soeding | A pumping and separating apparatus |
| JP2004052655A (en) * | 2002-07-19 | 2004-02-19 | Heishin Engineering & Equipment Co Ltd | Uniaxial eccentric screw pump |
| CN2695691Y (en) * | 2004-04-19 | 2005-04-27 | 西安海兴曲杆泵业工程有限公司 | Link structure of high-pressure, large flow single screw pump |
| CN201037458Y (en) * | 2007-05-24 | 2008-03-19 | 杭州兴龙泵业有限公司 | Deep-etching-resisting screw pump |
| CN206175207U (en) * | 2016-09-01 | 2017-05-17 | 温岭市钜恒机械有限公司 | Universal spiral shell sucker -rod pumping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Xu Yanxing Document name: Notification of Acceptance of Patent Application |
|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |
|
| WD01 | Invention patent application deemed withdrawn after publication |