CN204075872U - Gas-powered constant pressure pump cutting feeder - Google Patents

Gas-powered constant pressure pump cutting feeder Download PDF

Info

Publication number
CN204075872U
CN204075872U CN201420587517.0U CN201420587517U CN204075872U CN 204075872 U CN204075872 U CN 204075872U CN 201420587517 U CN201420587517 U CN 201420587517U CN 204075872 U CN204075872 U CN 204075872U
Authority
CN
China
Prior art keywords
gas
pressure pump
pump
powered
volute
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.)
Withdrawn - After Issue
Application number
CN201420587517.0U
Other languages
Chinese (zh)
Inventor
王成
施长岗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Precision Engineering Suzhou Co Ltd
Original Assignee
Johnson Precision Engineering Suzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Johnson Precision Engineering Suzhou Co Ltd filed Critical Johnson Precision Engineering Suzhou Co Ltd
Priority to CN201420587517.0U priority Critical patent/CN204075872U/en
Application granted granted Critical
Publication of CN204075872U publication Critical patent/CN204075872U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of gas-powered constant pressure pump cutting feeder, comprise lathe, fill the container of cutting fluid and source of the gas; Also comprise gas-powered spiral flow constant-pressure pump, gas-powered spiral flow constant-pressure pump comprises the pump housing, pump case and impeller, impeller is assemblied on impeller rotating shaft, the pump housing is arranged on pump case right-hand member, the pump housing comprises volute and the turbine that is arranged in volute and rotatable shaft, and turbine cartridge fits on rotatable shaft, and rotatable shaft is connected with impeller rotating shaft, volute offers air inlet and gas outlet, and respectively at air inlet and gas outlet additional threading gas port check valve and gas outlet check valve; Air inlet check valve is connected with magnetic valve, and magnetic valve is all connected with lathe with source of the gas.Constant pressure pump of the present utility model is connected with numerical control of machine tools code, can open, close during EP (end of program) when program performs, to facilitate mounting or dismounting, to check workpiece.

Description

Gas-powered constant pressure pump cutting feeder
Technical field
The utility model relates to field of machining, in particular to a kind of gas-powered constant pressure pump cutting feeder.
Background technology
In machining, to rub the surface temperature at position and tool wear to reduce cutter and workpiece blank, improving the machinability of workpiece material, improving machining accuracy and tool life, and cleaning and the multiple effect such as antirust.Capital adds the cutting fluid of different size in metal cutting for unlike material.
The cutting feeder that existing cutting fluid supply arrangement uses, usual employing separate unit water pump specific installation uses, when certain machine tool working range is larger, need to product parts simultaneously feed flow time, often from pressure remotely can not meet its instructions for use not.Now commercially there is concentrated supply device, this device utilizes the pressure reduction of liquid in pressurized tank to supply, and the pressure near pressurized tank can be caused so large, but will be less from the machine cut hydraulic coupling away from pressurized tank, and flow also can be not enough.Use in addition during this equipment and stop when pressure height, restart, cause integrated piping pressure transient when pressure is low, motor is the frequent stop and start with pressure change also, cause the consumption of the energy and the minimizing of bulk lifetime.Sometimes adopt interpolation frequency converter to reach constant voltage object, but converter plant not only wastes energy, and use easily bad, its job stability can not be ensured.When certain lathe multistation system of processing, need simultaneously to multistation, multi-facetedly to cool, traditional micropump drives owing to adopting motor, common blade pump can not constant voltage, not only waste electric energy, also unstable to feed flow, when iron filings or some impurity enter on the screen pack of pump, often cause pump normally not cool by feed flow, have impact on production.
Utility model content
The utility model is intended at least to solve one of technical problem existed in prior art.
To achieve these goals, propose a kind of gas-powered constant pressure pump cutting feeder according to embodiment of the present utility model, comprise lathe, fill the container of cutting fluid and source of the gas, also comprise import to be connected with described cutting fluid, export the gas-powered spiral flow constant-pressure pump corresponding with described lathe, described gas-powered spiral flow constant-pressure pump comprises the pump housing, pump case and impeller, described impeller is assemblied on impeller rotating shaft, the described pump housing is arranged on described pump case right-hand member, the pump housing comprises volute and the turbine that is arranged in volute and rotatable shaft, described turbine cartridge fits on rotatable shaft, described rotatable shaft is connected with impeller rotating shaft, described volute offers air inlet and gas outlet, and respectively at described air inlet and gas outlet additional threading gas port check valve and gas outlet check valve, described air inlet check valve is connected with magnetic valve, and described magnetic valve is all connected with lathe with described source of the gas.
Promote turbine according to the gas-powered constant pressure pump cutting feeder of the utility model embodiment by Compressed Gas to rotate, rotary power is directly passed to impeller, carries out constant voltage output liquid.Gas enters in volute by air inlet check valve, under the influence of air pressure, promotion turbine rotates, after the work of turbine impeller, unnecessary gas is discharged by the gas outlet be opened on gas spiral case, the heat that high-speed turbine is produced when rotated simultaneously can directly be discharged by gas, ensure that the reliability of pump operation.Simultaneously, directly can get a compressed gas source from equipment, the gas-turbine on the gas access pump housing, adopts this type of drive the pump housing directly can be put into liquid medium, the import of pump case is connected with cutting fluid, the outlet of pump case by pipeline communication to the cutting apparatus of lathe.The utility model adopts new gas to drive spiral flow constant-pressure pump not only to save the energy, and its constant voltage output characteristics makes cutting fluid supply more stable, impeller is blocking characteristic not, make the cutting fluid that can transmit certain impurity, be connected with numerical control of machine tools code simultaneously, can open when program performs, close during EP (end of program), to facilitate mounting or dismounting, to check workpiece.
In addition, following additional technical characteristic can be had according to the gas-powered constant pressure pump cutting feeder of the utility model embodiment:
According to an embodiment of the present utility model, described pump housing endophragm is circular arc, described impeller comprises a back shroud with a hub portion, be positioned on front side of back shroud with the multiple front vane of back shroud shape all-in-one-piece and be positioned on rear side of back shroud with back shroud shape all-in-one-piece multiple pairs of blades, each front vane is bending counterclockwise near back shroud circular edge place and is tilting clockwise, the bending sloping portion formed an angle with the front surface shape of back shroud, pays blade straight line and extends to impeller outer edge.
According to an embodiment of the present utility model, described air inlet and gas outlet are offered along the tangent to periphery direction of volute.
According to an embodiment of the present utility model, described impeller rotating shaft and rotatable shaft are same axle.
According to an embodiment of the present utility model, the position of described air inlet and gas outlet is separated by 90-360 ° on volute, preferably 270 °.
According to an embodiment of the present utility model, described volute comprises connecting plate and is arranged at the pump postoperculum of connecting plate right-hand member, and described pump case is positioned at described connecting plate left end, described pump case, is screwed together between connecting plate and pump postoperculum.
According to an embodiment of the present utility model, the two ends of described rotatable shaft are arranged on described connecting plate and pump postoperculum respectively by bearing.
According to an embodiment of the present utility model, described turbine is arranged on described rotatable shaft by driving key.
According to an embodiment of the present utility model, described gas-powered spiral flow constant-pressure pump directly puts into described cutting fluid.
According to an embodiment of the present utility model, described lathe comprises CNC system, machine tool action system and signal translating system, and described CNC system is connected with signal translating system with machine tool action system, and described signal translating system is connected with described magnetic valve.
According to an embodiment of the present utility model, described turbine comprises the blade of some even arrangements, the outer surface of described blade matches with the inwall of described volute, each blade comprises a front surface and a rear surface, the middle part of the corresponding described front surface of described air inlet, described front surface is concave surface, and the middle part of front surface is recessed in its two ends on rotatable shaft axial direction.
The cutting fluid supply method of the gas-powered constant pressure pump cutting feeder described in utilization, step is: machine tooling program code starts, CNC system starts, control lathe moving system to perform an action, convert the signal of telecommunication to the signal of telecommunication by signal translating system, magnetic valve obtains electric simultaneously, and gas is sent on air inlet check valve by magnetic valve by compressed air, thus the work of gas-powered spiral flow constant-pressure pump, realize cutting fluid supply.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the gas-powered constant pressure pump cutting feeder according to the utility model embodiment;
Fig. 2 is the structural representation of the turbine portion of gas-powered constant pressure pump cutting feeder according to the utility model embodiment;
Fig. 3 is the structural representation of the turbine of gas-powered constant pressure pump cutting feeder according to the utility model embodiment;
Fig. 4 is the electrical schematic of the lathe part of gas-powered constant pressure pump cutting feeder according to the utility model embodiment.
Description of reference numerals:
10, CNC system; 20, machine tool action system; 30, signal translating system; 40, magnetic valve; 101, pump case; 102, turbine; 103, pump postoperculum; 104, gas outlet check valve; 105, air inlet check valve; 106, connecting plate; 200, impeller; 300, fore bearing; 400, central shaft; 500, rear bearing; 600, driving key; 107, blade; 108, front surface; 109, rear surface.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Referring to Fig. 1-3, the gas-powered constant pressure pump cutting feeder according to the utility model embodiment is described.As Figure 1-3, comprise lathe according to the gas-powered constant pressure pump cutting feeder of the utility model embodiment, fill the container of cutting fluid and source of the gas; Also comprise import to be connected with cutting fluid, to export and gas-powered spiral flow constant-pressure pump that described lathe is corresponding.
Specifically, gas-powered spiral flow constant-pressure pump comprises the pump housing, pump case 101 and impeller 200, impeller 200 is assemblied on impeller rotating shaft, the pump housing is arranged on pump case 101 right-hand member, the pump housing comprises volute and the turbine 102 that is arranged in volute and rotatable shaft, and turbine 102 is assemblied on rotatable shaft, and rotatable shaft is connected with impeller rotating shaft, volute offers air inlet and gas outlet, and respectively at air inlet and gas outlet additional threading gas port check valve 105 and gas outlet check valve 104; Air inlet check valve 105 is connected with magnetic valve 40, and magnetic valve 40 is all connected with lathe with source of the gas.Wherein, turbine 102 can adopt high-speed turbine, and bearing 300,500 can adopt high-speed bearing.
Gas-powered constant pressure pump cutting feeder gas-powered constant pressure pump cutting feeder according to the utility model embodiment enters in volute by compressed air through air inlet check valve 105, rotated by gas-driven turbine 102, turbine 102 is along with Compressed Gas High Rotation Speed, unnecessary gas is located through gas outlet check valve 104 row, simultaneously, impeller 200 high-speed rotation, under the effect of impeller 200 and volute, realizes constant voltage output liquid.It adopts gas-powered impeller 200, owing to eliminating the sealing device of motor, therefore the pump housing of the present utility model directly can be put into liquid medium, not only eliminate motor cost, also reduce the quality of pump, reduce manufacturing cost, saved the energy.Simultaneously, directly can get a compressed gas source from equipment, the gas-turbine 102 on the gas access pump housing, adopts this type of drive the pump housing directly can be put into liquid medium, the import of pump case 101 is connected with cutting fluid, the outlet of pump case 101 by pipeline communication to the cutting apparatus of lathe.The utility model adopts new gas to drive spiral flow constant-pressure pump not only to save the energy, and its constant voltage output characteristics makes cutting fluid supply more stable, impeller 200 not blocking characteristic, make the cutting fluid that can transmit certain impurity, be connected with numerical control of machine tools code simultaneously, can open when program performs, close during EP (end of program), to facilitate mounting or dismounting, to check workpiece.
In examples more of the present utility model, pump case 101 inwall is circular arc, impeller 200 comprises a back shroud with a hub portion, be positioned on front side of back shroud with the multiple front vane of back shroud shape all-in-one-piece and be positioned on rear side of back shroud with back shroud shape all-in-one-piece multiple pairs of blades, each front vane is bending counterclockwise near back shroud circular edge place and is tilting clockwise, the bending sloping portion formed an angle with the front surface shape of back shroud, pays blade straight line and extends to impeller 200 outward flange.When this pump rotates, the vent centrifugal power of bending sloping portion back root part is greater than the vent centrifugal power of free margins before bending sloping portion, the flow stream pressure also corresponding flow stream pressure higher than front free margins of back root part, liquid flow path direction points to free margins by back root part, produce longitudinal flow, produce rotational flow formation spiral flow along with impeller 200 rotates, then enter the space on impeller 200 between multiple front vane, again pressurize, it acts on similar centrifugal multistage pump multiple centrifugal pump, thus obtains high-lift and constant voltage output.
As shown in Figure 2, in examples more of the present utility model, air inlet and gas outlet are offered along the tangent to periphery direction of volute.Cut money direction and can represent that air inlet and gas outlet are in same tangential direction, also can not with on all money directions.Air inlet is located at and directly acts on turbine 102 along volute tangent to periphery direction making compressed air enter after in volute, makes structure simple, and increases the motive force of compressed air to turbine 102; Gas outlet be located at along on volute tangent to periphery direction so that compressed air directly discharges volute, reduce air discharge resistance.
In examples more of the present utility model, impeller rotating shaft and rotatable shaft are same axle, are called central shaft 400.As shown in Figure 1, the left end of central shaft 400 installs described impeller 200, and middle part and right-hand member are arranged on volute respectively by fore bearing 300 and rear bearing 500.
As shown in Figure 2, in examples more of the present utility model, the position of air inlet and gas outlet is separated by 90-360 ° on volute, preferably 270 °-360 °, can be 270 °.Now, relatively far apart, compressed air rotates major part around turbine 102 circumference for air inlet and gas outlet, produced the when rotated heat of high-speed turbine 102 can fully and compressed air carry out heat exchange, be conducive to by compressed air, heat being discharged, ensure that the reliability of pump operation.Meanwhile, because compressed air absorbs amount of heat, gas expansion, pressure becomes large, and air is discharged comparatively abundant.
As shown in Figure 1, in a concrete example of the present utility model, volute comprises connecting plate 106 and is arranged at the pump postoperculum 103 of connecting plate 106 right-hand member, and pump case 101 is positioned at described connecting plate 106 left end, pump case 101, is screwed together between connecting plate 106 and pump postoperculum 103.Described connecting plate 106 has the plane matched with impeller 200 and turbine 102 respectively at two ends, middle part, connecting plate 106 edge is not necessarily flat.Form the space holding impeller 200 between pump case 101 and connecting plate 106, between pump postoperculum 103 and connecting plate 106, form the space holding turbine 102.Pump postoperculum 103 wraps up most of turbine 102, and air inlet and gas outlet are opened on this pump postoperculum 103.The two ends, left and right of rotatable shaft (or the central shaft 400 when diaxon is coaxial) are arranged on described connecting plate 106 and pump postoperculum 103 respectively respectively by fore bearing 300 and rear bearing 500.
In a concrete example of the present utility model, turbine 102 is arranged on rotatable shaft (or the central shaft 400 when diaxon is coaxial) by driving key 600.
In a concrete example of the present utility model, gas-powered spiral flow constant-pressure pump directly puts into described cutting fluid.
As shown in Figure 4, in a concrete example of the present utility model, lathe comprises CNC system 10, machine tool action system 20 and signal translating system 30, and CNC system 10 is connected with signal translating system 30 with machine tool action system 20, and signal translating system 30 is connected with magnetic valve 40.When procedure starts, realize cooling fluid (cutting fluid) supply.
As shown in Figure 3, in examples more of the present utility model, turbine 102 comprises the blade 107 of some even arrangements, the outer surface of blade 107 matches with the inwall of described volute (leaving a fixed gap), each blade 107 comprises a front surface 108 and a rear surface 109, the middle part of the corresponding described front surface 108 of air inlet, front surface 108 is concave surface, and the middle part of front surface 108 is recessed in its two ends on rotatable shaft (or the central shaft 400 when diaxon is coaxial) axial direction.In turbine 102 direction of rotation, airintake direction and the volute inner wall surface of air inlet are tangent, make the direct positive effect of compressed air in the front surface 108 of blade 107, increase compressed-air actuated motive force.Front surface 108 has the concave surface at the recessed two ends in rotatable shaft axial direction, middle part, make on the one hand compressed-air actuated active force act in the middle part of concave surface a bit, increase motive force; On the other hand, when the front surface 108 of blade 107 rotates to air inlet, due to the middle part facing to front surface 108 at front surface 108 two ends, thus the mask at front surface 108 two ends has has reaction force in the middle part of front surface 108 to the compressed air be filled with, thus compressed-air actuated motive force is stronger, prevents this space from increasing suddenly and brings relatively large negative pressure to compressed-air actuated energy-absorbing function.
Particularly, described blade 107 has 6.
A kind of cutting fluid supply method utilizing described gas-powered constant pressure pump cutting feeder, step is: machine tooling program code starts, CNC system 10 starts, control lathe moving system 20 to perform an action, convert the signal of telecommunication to the signal of telecommunication by signal translating system 30, magnetic valve 40 obtains electric, and gas is sent on air inlet check valve 105 by magnetic valve 40 by compressed air simultaneously, thus the work of gas-powered spiral flow constant-pressure pump, realize cutting fluid supply.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (9)

1. a gas-powered constant pressure pump cutting feeder, is characterized in that, comprises lathe, fills the container of cutting fluid and source of the gas, also comprise import to be connected with described cutting fluid, export the gas-powered spiral flow constant-pressure pump corresponding with described lathe, described gas-powered spiral flow constant-pressure pump comprises the pump housing, pump case and impeller, described impeller is assemblied on impeller rotating shaft, the described pump housing is arranged on described pump case right-hand member, the pump housing comprises volute and the turbine that is arranged in volute and rotatable shaft, described turbine cartridge fits on rotatable shaft, described rotatable shaft is connected with impeller rotating shaft, described volute offers air inlet and gas outlet, and respectively at described air inlet and gas outlet additional threading gas port check valve and gas outlet check valve, described air inlet check valve is connected with magnetic valve, and described magnetic valve is all connected with lathe with described source of the gas.
2. gas-powered constant pressure pump cutting feeder according to claim 1, it is characterized in that, described pump housing endophragm is circular arc, described impeller comprises the back shroud that has a hub portion, be positioned on front side of back shroud with the multiple front vane of back shroud shape all-in-one-piece and be positioned on rear side of back shroud with back shroud shape all-in-one-piece multiple pairs of blades, each front vane is bending counterclockwise near back shroud circular edge place and is tilting clockwise, the bending sloping portion formed an angle with the front surface shape of back shroud, pay blade straight line and extend to impeller outer edge.
3. gas-powered constant pressure pump cutting feeder according to claim 1, is characterized in that, described air inlet and gas outlet are offered along the tangent to periphery direction of volute.
4. gas-powered constant pressure pump cutting feeder according to claim 1, is characterized in that, the position of described air inlet and gas outlet is separated by 270 °-360 ° on volute.
5. gas-powered constant pressure pump cutting feeder according to claim 1, is characterized in that, described impeller rotating shaft and rotatable shaft are same axle.
6. gas-powered constant pressure pump cutting feeder according to claim 1, it is characterized in that, described volute comprises connecting plate and is arranged at the pump postoperculum of connecting plate right-hand member, and described pump case is positioned at described connecting plate left end, described pump case, is screwed together between connecting plate and pump postoperculum.
7. gas-powered constant pressure pump cutting feeder according to claim 1, is characterized in that, described gas-powered spiral flow constant-pressure pump directly puts into described cutting fluid.
8. gas-powered constant pressure pump cutting feeder according to claim 1, it is characterized in that, described lathe comprises CNC system, machine tool action system and signal translating system, described CNC system is connected with signal translating system with machine tool action system, and described signal translating system is connected with described magnetic valve.
9. the gas-powered constant pressure pump cutting feeder according to any one of claim 1-8, it is characterized in that, described turbine comprises the blade of some even arrangements, the outer surface of described blade matches with the inwall of described volute, each blade comprises a front surface and a rear surface, the middle part of the corresponding described front surface of described air inlet, described front surface is concave surface, and the middle part of front surface is recessed in its two ends on rotatable shaft axial direction.
CN201420587517.0U 2014-10-11 2014-10-11 Gas-powered constant pressure pump cutting feeder Withdrawn - After Issue CN204075872U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420587517.0U CN204075872U (en) 2014-10-11 2014-10-11 Gas-powered constant pressure pump cutting feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420587517.0U CN204075872U (en) 2014-10-11 2014-10-11 Gas-powered constant pressure pump cutting feeder

Publications (1)

Publication Number Publication Date
CN204075872U true CN204075872U (en) 2015-01-07

Family

ID=52168634

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420587517.0U Withdrawn - After Issue CN204075872U (en) 2014-10-11 2014-10-11 Gas-powered constant pressure pump cutting feeder

Country Status (1)

Country Link
CN (1) CN204075872U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104308647A (en) * 2014-10-11 2015-01-28 强胜精密机械(苏州)有限公司 Air-driven constant-pressure pump cutting fluid supply device and cutting fluid supply method
CN112589525A (en) * 2020-11-18 2021-04-02 南京工业职业技术大学 Turning and milling composite machine tool cutter cooling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104308647A (en) * 2014-10-11 2015-01-28 强胜精密机械(苏州)有限公司 Air-driven constant-pressure pump cutting fluid supply device and cutting fluid supply method
CN112589525A (en) * 2020-11-18 2021-04-02 南京工业职业技术大学 Turning and milling composite machine tool cutter cooling device

Similar Documents

Publication Publication Date Title
CN201265558Y (en) Inlet guide blade regulator of single-axle cantilever compressor
CN104308647A (en) Air-driven constant-pressure pump cutting fluid supply device and cutting fluid supply method
CN103350366B (en) Cutting solution supplying device and method
CN204075872U (en) Gas-powered constant pressure pump cutting feeder
CN201376094Y (en) Machining-center main-shaft side edge high-pressure water output structure
CN106076553A (en) A kind of cutter structure of single-shaft shredder
CN201671659U (en) Steam-jet type turbine
WO2010009629A1 (en) A hydrodynamic cooling fan for a cooling tower with high efficiency and saving-energy
CN2926563Y (en) Hydraulic turbine of cooling tower
CN101614210A (en) Spiral automatic controlled water pump
CN102996520A (en) Housing structure of centrifugal compressor
CN204163997U (en) Gas-powered spiral flow constant-pressure pump
CN207223524U (en) A kind of cutting fluid remains blowning installation
CN202140338U (en) Impeller formed by assembling and welding highly resisting cavitation corrosion stainless steel
CN105317729A (en) Sliding bearing and multi-stage centrifugal pump
CN202012442U (en) Hydraulic drive device of multistage energy-saving type cooling tower
CN104314832B (en) Gas-powered spiral flow constant-pressure pump
CN205478515U (en) A helicla flute sealing ring for centrifugal pump
CN104389811A (en) Energy reuse radial boosting pump
CN103993915A (en) Large efficient full-work-condition energy recovery enclosed-impeller radial-inward-flow turbine all-in-one machine
CN217502011U (en) Wear-proof pump
CN214464930U (en) Novel energy-saving water pump
CN218137273U (en) Hybrid main shaft for high-speed grinding scene
CN217602941U (en) Slurry pump structure for improving hydraulic efficiency and prolonging service life of overflowing part
CN104314832A (en) Air-driven spiral flow constant-pressure pump

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20150107

Effective date of abandoning: 20170714

AV01 Patent right actively abandoned