CN201152255Y - Conical three screw-rod pump - Google Patents
Conical three screw-rod pump Download PDFInfo
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- CN201152255Y CN201152255Y CNU2007201883661U CN200720188366U CN201152255Y CN 201152255 Y CN201152255 Y CN 201152255Y CN U2007201883661 U CNU2007201883661 U CN U2007201883661U CN 200720188366 U CN200720188366 U CN 200720188366U CN 201152255 Y CN201152255 Y CN 201152255Y
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Abstract
The utility model relates to a pyramidal triple screw pump, in particular to the structure of the triple screw pump. The pyramidal triple screw pump mainly comprises a pyramidal box body, cone-shaped primary and secondary conical screw bolts, a bearing, a sealing ring, etc. The upper, the lower, the front and the back surfaces of the box body are planes, the right and the left surfaces of the box body are inclined planes having included angles of 10-20 DEG with the central axis of the box body, the primary and the secondary screw bolts both are in the conical shape, the generatrixes of the primary and the secondary screw bolts form included angles of 5-10 DEG with the central axis of the screw bolts, the primary screw bolt is arranged in the pyramidal box body, the axis of the primary screw bolt is in superposition with the central axis of the box body, two secondary screw bolts are respectively arranged at both sides of the primary screw bolt and are positioned on the same plane, the central axis of each secondary screw bolt forms an included angle of 10-20 DEG with the central axis of the primary screw bolt, and the tooth profile curves of the primary screw bolt and the secondary screw bolt are epicycloids and are engaged with each other to form a sealing cavity. The pyramidal triple screw pump has the advantages of compact and simple structure, materials saving, low cost, increase of the flow rate of liquid delivery to improve delivery pressure of the liquid, power resource conservation, etc., thereby being widely applied to the engineering machines of shipping, mining, chemical engineering, petroleum, etc., and being an economic and practical triple screw pump.
Description
Technical field
The utility model belongs to the mechanical pump technical field, particularly the structure of three screw pump.
Background technique
Three screw pump is a kind of high accuracy mechanical product, and by the screw rod rotation, the liquid that continuously inlet is sealed in spiral space moves axially to the outlet port.Therefore, have rational in infrastructurely, allow high rotating speed, pressure pulsation is little, and noise is low, and the work balance is reliable, and good from absorption, characteristics such as volumetric efficiency height have more superior characteristic than gear pump, plunger pump and centrifugal pump.Be particularly suitable for carrying oils and full-bodied liquid.Three screw pump is widely used in transfer oil and various petroleum product, as full-bodied liquid of non-lubricity such as crude oil, heavy oil, light oil, lubricant oil, fuel oil, pitch, lubricating grease, vegetable oil and emulsion, syrup, soup, macromolecules.Therefore, in oil refinery, petrochemical plant, oil dock, pitch storehouse, dynamicliquid pressure equipment, naval vessel and departments such as light industry, food industry, used widely.In machining, also be widely used in simultaneously the supply source power of cooling liquid, Lubricants.Has quite wide application future at home and abroad, a lot of field of engineering technology need to carry the three screw pump of high pressure, big flow liquid, traditional three screw pump does not reach this generic request in the engineering, influence the popularization and the application of three screw pump greatly, become the technical problem that needs to be resolved hurrily in the three screw pump design.
Existing three screw pump is ZL99242375.9 " three screw pump " as the patent No., mainly comprises driving screw and driving screw axle, and two from screw rod and from screw axis, housing, liquid inlet pipe and liquid-discharging tube, rolling bearing etc.Because the bus and the outer contour of the master and slave screw rod of this three screw pump all are parallel to rotating shaft center's line, therefore, master and slave screw rod is cylindrical shape, it is the relevant position of corresponding pitch on the master and slave screw rod, the cross-section structure of high voltage terminal and low voltage terminal is identical, so it is there is pressurized effect not significantly and the big inadequately shortcoming of feed flow, very high and require the engineering problem of big flow not meet the demands for requiring delivery pressure.
Summary of the invention
The purpose of this utility model is at the deficiency of existing three screw pump, and a kind of conical three-screw pump is provided, and has compact structure, simple, flow is big, has increased discharge pressure, reliable operation, applied range, the life-span is long, characteristics such as low cost of manufacture, energy-conserving and environment-protective.
The purpose of this utility model is achieved in that a kind of conical three-screw pump, mainly comprises: casing, driving screw, from screw rod, bearing, seal ring etc.Casing is 6 bodies of taper, about it, front-back is the plane, about face be 10 °～20 ° inclined-plane for angle with its central axis.Master and slave screw rod is cone shape, and the bus of master and slave screw rod is 5 °～10 ° to the angle of its central axis.Driving screw is installed in the taper casing, the central axes of its axis and casing, and two are installed in the both sides of driving screw and in the same plane respectively from screw rod, and two central axis and driving screw central axis angles from screw rod are 10 °～20 °.Like this, can effectively guarantee flow and the increase delivery pressure that it carries liquid.The tooth curve of master and slave screw rod is the outer pendulum curve and the formation Seal cage that is meshing with each other, and to guarantee the sealing of three screw pump, makes and carries liquid clean, that no burn into has lubricity under the air-proof condition of three screw pump in the taper casing.The two ends of the axle of driving screw flexibly connect by bearing and taper casing respectively, and an end that spool is positioned at low-pressure cavity of driving screw stretches out outside the taper casing, so that affixed with motor.Two two ends from the axle of screw rod flexibly connect by bearing and taper casing respectively.Liquid entering hole is arranged on the side of the low-pressure cavity (promptly big end) of taper casing, and liquid inlet pipe is fixedly connected on by bolt and suction flange on the liquid entering hole of taper casing and is communicated with low-pressure cavity in the casing.Liquid outlet is arranged on the same side of the hyperbaric chamber (being small end) of taper casing, and drain pipe is fixedly connected on by bolt and outlet(discharge) flange on the liquid outlet of taper casing and with case inner high voltage chamber and is communicated with.
Working procedure of the present utility model: the axle of motor drives driving screw rotatablely moves, and drives driving screw simultaneously and rotatablely moves, and driving screw drives rotating from screw rod of both sides again and forms gear motion.The liquid of low pressure enters low-pressure cavity by liquid inlet pipe and liquid entering hole, gear motion along with master and slave screw rod, low hydraulic fluid in the low-pressure cavity, is transported in the hyperbaric chamber to doing continuously, moving equably along master and slave screw rod, and process liquid port and liquid-discharging tube are discharged the liquid of high pressure at last.
The utility model mainly contains following effect after adopting technique scheme: 1. compact structure, simple, and saved manufactured materials and reduced manufacture cost, when having saved difficulty of processing and worker; 2. increase the flow of carrying liquid, improved the delivery pressure of carrying liquid, can satisfy the requirement of carrying big flow and highly pressurised liquid in the engineerings application such as oil, boats and ships, promoted the application and the popularization of three screw pump; 3. reliable operation, the seal of master and slave screw rod is good, can effectively prevent to have improved the operating life of three screw pump because of interference produces scratch, phenomenon such as kills; 4. this conical three-screw pump and traditional cylinder three screw pump relatively can be exported the liquid of bigger flow and pressure with the motor of constant power, have saved electric power resource, have produced bigger benefit.The utility model can be widely used in the engineering mechanical device of industries such as naval vessel, mining, chemical industry, oil, is economical and practical three screw pump.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Among the figure: 1 is liquid entering hole, and 2 is suction flange, and 3 is bearing, and 4 is back-up ring, and 5 is seal ring, and 6 is outlet(discharge) flange, and 7 is liquid outlet, and 8 is hyperbaric chamber, and 9 is casing, and 10 is driving screw, and 11 is from screw rod, and 12 is low-pressure cavity.
Embodiment
Below in conjunction with embodiment, the utility model is further specified.
Embodiment 1
As shown in Figure 1, a kind of conical three-screw pump mainly comprises: casing 9, driving screw 10, from screw rod 11, bearing 3, seal ring 5 etc.Casing 9 is 6 bodies of taper, about it, front-back is the plane, about face be 10 ° inclined-plane for angle with its central axis.Master and slave screw rod 10,11 is cone shape, and the bus of master and slave screw rod 10,11 is 5 ° to the angle of its central axis.Driving screw 10 is installed in the taper casing 9, the central axes of the axis of driving screw 10 and casing 9, two are installed in the both sides of driving screw 10 and in the same plane respectively from screw rod 11, and two central axis and driving screw 10 central axis angles from screw rod 11 are 10 °.Like this, can effectively guarantee flow and the increase delivery pressure that it carries liquid.The tooth curve of master and slave screw rod 10,11 is the outer pendulum curve and the formation Seal cage that is meshing with each other, and to guarantee the sealing of three screw pump, makes and carries liquid clean, that no burn into has lubricity under the air-proof condition of three screw pump in taper casing 9.The two ends of the axle of driving screw 10 flexibly connect by bearing 3 and taper casing 9 respectively, and the end that the axle of driving screw 10 is positioned at low-pressure cavity 12 stretches out outside the taper casing 9, so that affixed with motor.Two two ends from the axle of screw rod 11 flexibly connect by bearing 3 and taper casing 9 respectively.Liquid entering hole 1 is arranged on the side of the low-pressure cavity 12 (promptly big end) of taper casing 9, and liquid inlet pipe 1 is fixedly connected on by bolt and suction flange 2 on the liquid entering hole of taper casing 9 and is communicated with low-pressure cavity 12 in the casing 9.Liquid outlet 7 is arranged on the same side of the hyperbaric chamber 8 (being small end) of taper casing, and drain pipe is fixedly connected on by bolt and outlet(discharge) flange 2 on the liquid outlet 7 of taper casing 9 and with case inner high voltage chamber 8 and is communicated with.
Embodiment 2
As shown in Figure 1, a kind of conical three-screw pump mainly comprises: casing 9, driving screw 10, from screw rod 11, bearing 3, seal ring 5 etc.Casing 9 is 6 bodies of taper, about it, front-back is the plane, about face be 20 ° inclined-plane for angle with its central axis.Master and slave screw rod 10,11 is cone shape, and the bus of master and slave screw rod 10,11 is 10 ° to the angle of its central axis.Driving screw 10 is installed in the taper casing 9, the central axes of the axis of driving screw 10 and casing 9, two are installed in the both sides of driving screw 10 and in the same plane respectively from screw rod 11, and two central axis and driving screw 10 central axis angles from screw rod 11 are 20 °.Like this, can effectively guarantee flow and the increase delivery pressure that it carries liquid.The tooth curve of master and slave screw rod 10,11 is the outer pendulum curve and the formation Seal cage that is meshing with each other, and to guarantee the sealing of three screw pump, makes and carries liquid clean, that no burn into has lubricity under the air-proof condition of three screw pump in taper casing 9.The two ends of the axle of driving screw 10 flexibly connect by bearing 3 and taper casing 9 respectively, and the end that the axle of driving screw 10 is positioned at low-pressure cavity 12 stretches out outside the taper casing 9, so that affixed with motor.Two two ends from the axle of screw rod 11 flexibly connect by bearing 3 and taper casing 9 respectively.Liquid entering hole 1 is arranged on the side of the low-pressure cavity 12 (promptly big end) of taper casing 9, and liquid inlet pipe 1 is fixedly connected on by bolt and suction flange 2 on the liquid entering hole of taper casing 9 and is communicated with low-pressure cavity 12 in the casing 9.Liquid outlet 7 is arranged on the same side of the hyperbaric chamber 8 (being small end) of taper casing, and drain pipe is fixedly connected on by bolt and outlet(discharge) flange 2 on the liquid outlet 7 of taper casing 9 and with case inner high voltage chamber 8 and is communicated with.
Embodiment 3
As shown in Figure 1, a kind of conical three-screw pump mainly comprises: casing 9, driving screw 10, from screw rod 11, bearing 3, seal ring 5 etc.Casing 9 is 6 bodies of taper, about it, front-back is the plane, about face be 15 ° inclined-plane for angle with its central axis.Master and slave screw rod 10,11 is cone shape, and the bus of master and slave screw rod 10,11 is 7.5 ° to the angle of its central axis.Driving screw 10 is installed in the taper casing 9, the central axes of the axis of driving screw 10 and casing 9, two are installed in the both sides of driving screw 10 and in the same plane respectively from screw rod 11, two central axis and driving screw 10 central axis angles from screw rod 11 are 15 °, like this, can effectively guarantee flow and the increase delivery pressure that it carries liquid.The tooth curve of master and slave screw rod 10,11 is the outer pendulum curve and the formation Seal cage that is meshing with each other, and to guarantee the sealing of three screw pump, makes and carries liquid clean, that no burn into has lubricity under the air-proof condition of three screw pump in taper casing 9.The two ends of the axle of driving screw 10 flexibly connect by bearing 3 and taper casing 9 respectively, and the end that the axle of driving screw 10 is positioned at low-pressure cavity 12 stretches out outside the taper casing 9, so that affixed with motor.Two two ends from the axle of screw rod 11 flexibly connect by bearing 3 and taper casing 9 respectively.Liquid entering hole 1 is arranged on the side of the low-pressure cavity 12 (promptly big end) of taper casing 9, and liquid inlet pipe 1 is fixedly connected on by bolt and suction flange 2 on the liquid entering hole of taper casing 9 and is communicated with low-pressure cavity 12 in the casing 9.Liquid outlet 7 is arranged on the same side of the hyperbaric chamber 8 (being small end) of taper casing, and drain pipe is fixedly connected on by bolt and outlet(discharge) flange 2 on the liquid outlet 7 of taper casing 9 and with case inner high voltage chamber 8 and is communicated with.
Claims (4)
1, a kind of conical three-screw pump, mainly comprise casing (9), driving screw (10), from screw rod (11), bearing (3), seal ring (5), it is characterized in that casing (9) is 6 bodies of taper, about it, front-back is the plane, about face for the angle of its central axis be 10 °～20 ° inclined-plane, main, from screw rod (10,11) be cone shape, main, from screw rod (10,11) bus is 5 °～10 ° to the angle of its central axis, driving screw (10) is installed in the taper casing (9), the central axes of its axis and casing (9), two are installed in the both sides of driving screw (10) and in the same plane respectively from screw rod (11), two central axis and driving screw (10) central axis angles from screw rod (11) are 10 °～20 °, main, from screw rod (10,11) tooth curve is the outer pendulum curve and the formation Seal cage that is meshing with each other, the two ends of the axle of driving screw (10) flexibly connect by bearing (3) and taper casing (9) respectively, and the end that the axle of driving screw (10) is positioned at low-pressure cavity (12) stretches out outside the taper casing (9), two two ends from the axle of screw rod (11) flexibly connect by bearing (3) and taper casing (9) respectively, liquid entering hole (1) is arranged on the side of the low-pressure cavity (12) of taper casing (9), the liquid entering hole (1) that liquid inlet pipe is fixedly connected on taper casing (9) by bolt and suction flange (6) is gone up and is communicated with low-pressure cavity (12) in the casing (9), liquid outlet (7) is arranged on the same side of the hyperbaric chamber (8) of taper casing (9), and drain pipe upward and with case inner high voltage chamber (8) is communicated with by the liquid outlet (7) that bolt and outlet(discharge) flange (6) are fixedly connected on taper casing (9).
2, by the described conical three-screw pump of claim 1, it is characterized in that a kind of three screw pump casing (9) about the angle of face and central axis be 10 °, the bus of master and slave screw rod (10,11) is 5 ° to the angle of its central axis, and two central axis and driving screw (10) central axis angles from screw rod (11) are 10 °.
3, by the described conical three-screw pump of claim 1, it is characterized in that a kind of three screw pump casing (9) about the angle of face and central axis be 20 °, the bus of master and slave screw rod (10,11) is 10 ° to the angle of its central axis, and two central axis and driving screw (10) central axis angles from screw rod (11) are 20 °.
4, by the described conical three-screw pump of claim 1, it is characterized in that a kind of three screw pump casing (9) about the angle of face and central axis be 15 °, the bus of master and slave screw rod (10,11) is 7.5 ° to the angle of its central axis, and two central axis and driving screw (10) central axis angles from screw rod (11) are 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201883661U CN201152255Y (en) | 2007-11-29 | 2007-11-29 | Conical three screw-rod pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201883661U CN201152255Y (en) | 2007-11-29 | 2007-11-29 | Conical three screw-rod pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152255Y true CN201152255Y (en) | 2008-11-19 |
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ID=40127933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201883661U Expired - Fee Related CN201152255Y (en) | 2007-11-29 | 2007-11-29 | Conical three screw-rod pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152255Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485000A (en) * | 2014-10-07 | 2016-04-13 | 日本电产三协株式会社 | Gear pump |
| CN112610474A (en) * | 2020-12-22 | 2021-04-06 | 金迈思液压设备（天津）有限公司 | Conical rotor double-screw pump with bilateral exhaust |
-
2007
- 2007-11-29 CN CNU2007201883661U patent/CN201152255Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485000A (en) * | 2014-10-07 | 2016-04-13 | 日本电产三协株式会社 | Gear pump |
| CN112610474A (en) * | 2020-12-22 | 2021-04-06 | 金迈思液压设备（天津）有限公司 | Conical rotor double-screw pump with bilateral exhaust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Jingqing Heavy Machinery Co., Ltd. Assignor: Tang Qian|Gao Ming|Xu Jie| Fang Zhiyong Contract record no.: 2010500000048 Denomination of utility model: Conical three screw-rod pump Granted publication date: 20081119 License type: Exclusive License Record date: 20100909 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20091229 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Chongqing Jingqing Heavy Machinery Co., Ltd. Assignor: Tang Qian| Gao Xiang| Xu Jie| Fang Li Contract record no.: 2010500000048 Date of cancellation: 20110511 |