CN104196750A - Deep-well pump rotor long shaft and machining process thereof - Google Patents
Deep-well pump rotor long shaft and machining process thereof Download PDFInfo
- Publication number
- CN104196750A CN104196750A CN201410439925.6A CN201410439925A CN104196750A CN 104196750 A CN104196750 A CN 104196750A CN 201410439925 A CN201410439925 A CN 201410439925A CN 104196750 A CN104196750 A CN 104196750A
- Authority
- CN
- China
- Prior art keywords
- rotor
- section
- embryo
- deep
- construction section
- 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.)
- Granted
Links
- 238000003754 machining Methods 0.000 title abstract description 3
- 210000001161 mammalian embryo Anatomy 0.000 claims description 101
- 238000010276 construction Methods 0.000 claims description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000000227 grinding Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000007514 turning Methods 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008602 contraction Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a deep-well pump rotor long shaft and a machining process thereof. The key point of the technical scheme is that the outer diameter of a rotor installing section is slightly larger than the inner diameter of a rotor blank, the rotor blank is fixedly connected to the rotor installing section, the length of the rotor installing section is larger than that of the rotor blank, at least four extending grooves are formed in the peripheral side face of the rotor installing section in a peripheral array mode, the width of each extending groove ranges from 0.1 mm to 0.3 mm, and the depth of each extending groove ranges from 1 mm to 1.5 mm. The deep-well pump rotor long shaft can be convenient to manufacture, is prevented from being bent and does not easily slide axially, and the labor intensity is effectively reduced.
Description
Technical field
The present invention relates to field of machining, more particularly, it relates to a kind of deep-well pump rotor major axis and processing technology thereof.
Background technique
The maximum feature of deep-well pump is that motor and water pump are made to one, it is to immerse a kind of pump that aspirates and carry water in underground water well, be widely used in farmland discharging-irrigating, industrial and mining enterprise, urban water supply and sewerage and sewage treatment, deep-well pump rotating shaft is divided into integral type and split type, integral type rotating shaft is that machine shaft and pump housing rotating shaft are integrally manufactured, split type rotating shaft is that machine shaft is connected with pump housing rotating shaft by link, because the rotating shaft of prior art manufacture integral type is knocked in major axis in rotor embryo, cause long major axis easily to clench, and the labor intensity to workman increases greatly, and the rotor embryo of knocking in easily endwisely slips, cause the shaft length of integral type to be difficult for installing over after 60cm.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide a kind of easily manufacturedly, avoids crooked, is connected firmly, and effectively reduces the deep-well pump rotor major axis of labor intensity, and the processing method of processing this deep-well pump rotor major axis.
For achieving the above object, the invention provides following technological scheme: a kind of deep-well pump rotor major axis, comprise rotatingshaft, rotor embryo, described rotatingshaft comprises pump housing section, motor section, described rotor embryo is fixedly connected in motor section, described pump housing section comprises the water outlet section being arranged in order, thread section, impeller linkage section, water inlet section, described motor section comprises the clutch shaft bearing construction section being arranged in order, spacing section, rotor construction section, the second bearing construction section, described clutch shaft bearing construction section and water inlet section are wholely set, described impeller linkage section excircle side is provided with 2 centrosymmetric fixed pans, described rotor construction section external diameter is slightly larger than rotor embryo internal diameter, described rotor embryo is fixedly connected on rotor construction section, described rotor construction section length is greater than rotor embryo length, on described rotor construction section circumference side, Circle-Array is shown at least 4 extending flutes, described extending flute width is 0.1mm-0.3mm, the described extending flute degree of depth is 1mm-1.5mm.
Preferably, described rotor construction section external diameter is than the large 0.2mm-0.35mm of rotor embryo internal diameter.
Preferably, described extending flute is provided with 4, and described extending flute width is 0.1mm, and the extending flute degree of depth is 1.5mm.
A processing technology for deep-well pump rotor major axis, is characterized in that: comprise the steps:
Step 1: prepare bar-like raw material; Choose steel bar and carry out two ends cutting;
Step 2: end face processing; By the steel bar grinding two end surfaces of choosing, at both ends of the surface drill centers;
Step 3: car steel bar; The steel bar of choosing successively turning is gone out to water outlet section, thread section, impeller linkage section, water inlet section, clutch shaft bearing construction section, spacing section, rotor construction section, the second bearing construction section; Turning step is disposable to be completed;
Step 4: mill steel bar; Water outlet section after turning, impeller linkage section, water inlet section, clutch shaft bearing construction section, spacing section, rotor construction section, the second bearing construction section surface are carried out to grinding successively; Grinding step is disposable to be completed;
Step 5: dry rotor embryo; Rotor embryo is heated between 300 degree-350 degree;
Step 6: cut extending flute; On rotor construction section circumference side, cut out extending flute;
Step 7: cartridge rotor embryo; Rotor embryo is directly inserted in rotor construction section; Standing deep-well pump rotor major axis, makes rotor embryo naturally cooling, and rotor embryo is fixedly connected with rotatingshaft;
Step 8: car rotor embryo cylindrical; The rotor embryo that packs rotatingshaft into is carried out to turning processing;
Step 9: melt down insulation; Deep-well pump rotor major axis is reheated between 75 degree-80 degree, be incubated at least 1 hour;
Step 10: milling flat; By 2 fixed pans of impeller linkage section excircle side while Milling Process;
Step 11: fine grinding; Grinding is carried out in rotor embryo outer ring and impeller linkage section.
Preferably, described rotor embryo heating time is between 20 minutes-30 minutes.
Preferably, described rotor embryo heating 25 minutes, described rotor embryo is heated to 300 degree.
Preferably, described extending flute cuts by carbon dioxide laser.
Preferably, described rotor embryo carries out Baking out by heated air circulation industry baking oven.
Compared with prior art, beneficial effect of the present invention is: this deep-well pump rotor major axis has been avoided traditional dress technique of striking, by heating rotor embryo, by the principle of expanding with heat and contract with cold, make the whole expansion of rotor embryo, the relative rotor embryo inner circumference enlarged-diameter that makes, again the rotor embryo of inner circumference enlarged-diameter is picked up, be inserted in rotor construction section, rotor embryo is conflicted spacing section of one end, after rotor embryo is cooling, shrink, rotor embryo is completely fixed on rotor construction section, avoided knocking rotor embryo, rotor embryo is packed into, make to install the restriction that rotor embryo is not subject to rotatingshaft length, and reduced people's labor intensity, and rotor construction section is provided with extending flute, while clamping rotor construction section after rotor embryo is retracted, extending flute is shunk, make the fixing rotor construction section radial contraction of rotor embryo, effectively prevent that rotor embryo from endwisely slipping.
Accompanying drawing explanation
Fig. 1 is deep-well pump rotor major axis embodiment's of the present invention structural drawing;
Fig. 2 is analysing and observe of deep-well pump rotor major axis embodiment's rotatingshaft of the present invention;
Fig. 3 is the enlarged view of A in Fig. 2.
Reference character: 1, pump housing section; 11, water outlet section; 12, thread section; 13, impeller linkage section; 14, water inlet section; 15, fixed pan; 2, motor section; 21, clutch shaft bearing construction section; 22, spacing section; 23, rotor construction section; 24, the second bearing construction section; 3, rotor embryo; 4, extending flute.
Embodiment
Referring to figs. 1 through Fig. 3, deep-well pump rotor major axis embodiment of the present invention is described further.
A kind of deep-well pump rotor major axis, comprise rotatingshaft, rotor embryo 3, described rotatingshaft comprises pump housing section 1, motor section 2, described rotor embryo 3 is fixedly connected in motor section 2, described pump housing section 1 comprises the water outlet section 11 being arranged in order, thread section 12, impeller linkage section 13, water inlet section 14, described motor section 2 comprises the clutch shaft bearing construction section 21 being arranged in order, spacing section 22, rotor construction section 23, the second bearing construction section 24, described clutch shaft bearing construction section 21 is wholely set with water inlet section 14, described impeller linkage section 13 excircle sides are provided with 2 centrosymmetric fixed pans 15, described rotor construction section 23 external diameters are than the large 0.2mm-0.35mm of rotor embryo 3 internal diameter, described rotor embryo 3 is fixedly connected on rotor construction section 23, described rotor construction section 23 length are greater than rotor embryo 3 length, on described rotor construction section 23 circumference sides, Circle-Array is shown 4 extending flutes 4, described extending flute 4 width are 0.1mm, extending flute 4 degree of depth are 1.5mm, when rotor embryo 3 packs into after rotor construction section 23, because rotor construction section 23 external diameters are than the large 0.2mm-0.35mm of rotor embryo 3 internal diameter, make rotor embryo 3 banding rotor construction sections 23, extending flute 4 is shunk, make fixing rotor construction section 23 radial contraction of rotor embryo 3, effectively prevent that rotor embryo 3 from endwisely slipping, guaranteed the soundness that rotor embryo 3 connects.
Process above-mentioned deep-well pump rotor major axis and comprise that step is as follows:
Step 1: prepare bar-like raw material; Choose steel bar and carry out two ends cutting by carbon dioxide laser; The end face cutting by laser technique is smooth, and error is little has reduced the difficulty that end face polishes, and increases work efficiency.
Step 2: end face processing; By the steel bar grinding two end surfaces of choosing, at both ends of the surface drill centers; Center hole facilitates the clamping of steel bar, guarantees the centrad of car steel bar.
Step 3: car steel bar; The steel bar of choosing successively turning is gone out to water outlet section 11, thread section 12, impeller linkage section 13, water inlet section 14, clutch shaft bearing construction section 21, spacing section 22, rotor construction section 23, the second bearing construction section 24; By GJK6140B lathe is disposable, complete turning, simplify process step, reduce that clamping is installed, the operation of debugging, increase work efficiency.
Step 4: mill steel bar; By the accurate semiautomatic cylindrical grinder of MB1320 band amount instrument, the water outlet section 11 after turning, impeller linkage section 13, water inlet section 14, clutch shaft bearing construction section 21, spacing section 22, rotor construction section 23, the second bearing construction section 24 surfaces are carried out to grinding successively; Make water outlet section 11, impeller linkage section 13, water inlet section 14, clutch shaft bearing construction section 21, spacing section 22, the runout error of rotor construction section 23, the second bearing construction section 24 outer peripheral surfaces be less than 0.03mm, improve the precision of rotatingshaft, grinding step is disposable to be completed, and increases work efficiency.
Step 5: dry rotor embryo 3; Rotor embryo 3 is put into heated air circulation industry baking oven and carry out homogeneous heating 25 minutes, make rotor embryo 3 temperature reach 300 degree; Guarantee to be greater than the excircle diameter of rotor construction section 23 after rotor embryo 3 inner circumference enlarged-diameter, and prevent that 3 heating of rotor embryo are long, excess Temperature cracks.
Step 6: cut extending flute 4; On rotor construction section 23 circumference sides, by carbon dioxide laser, cutting out width is the extending flute 4 that 0.1mm, the degree of depth are 1.5mm; Use extending flute 4 precision of carbon dioxide laser cutting high, and width is that the extending flute 4 that 0.1mm, the degree of depth are 1.5mm can not exert an influence to the bulk strength of rotatingshaft, and improved the frictional force of rotor construction section 23 with rotor embryo 3, prevented that rotor embryo 3 from skidding.
Step 7: cartridge rotor embryo 3; Pass through principle of expanding with heat and contracting with cold, the size of rotor embryo 3 internal diameters can become more greatly, at this time fast rotor embryo 3 is put in rotor construction section 23, after waiting for that rotor embryo 3 is naturally cooling, rotatingshaft is fixedly connected with rotor embryo 3, make rotor embryo 3 banding rotor construction sections 23, extending flute 4 is shunk, make fixing rotor construction section 23 radial contraction of rotor embryo 3, effectively prevent that rotor embryo 3 from endwisely slipping, rotatingshaft can not produce bending in this step, has guaranteed stability and the precision of product, reduce people's labor intensity, improved installation efficiency.
Step 8: car rotor embryo 3 cylindricals; The rotor embryo 3 that packs rotatingshaft into is carried out to turning processing.
Step 9: melt down insulation; Deep-well pump rotor major axis is put into heated air circulation industry baking oven and reheat between 75 degree-80 degree, be incubated at least 1 hour; Because rotatingshaft and rotor embryo 3 reheat, the relative raising of plasticity after the rear rotor construction section 23 of rotatingshaft heating is heated, facilitate extending flute 4 to shrink, make rotor embryo 3 and rotor construction section 23 suitable fast, and effectively eliminate the stress of rotatingshaft and rotor embryo 3, improve the join strength of rotor embryo 3 and rotor construction section 23.
Step 10: milling flat; By X6132A horizontal universal lifting platform milling machine by impeller linkage section 13 excircle sides 2 fixed pans 15 of Milling Process simultaneously; Two disk alloy milling cutter processing planes of clamped one time, time processing puts in place, clamping again, efficiency is high, and precision is accurate, has guaranteed stability.
Step 11: fine grinding; By the accurate semiautomatic cylindrical grinder of MB1320 band amount instrument, grinding is carried out in rotor embryo 3 outer rings and impeller linkage section 13, make to measure in real time the runout error of rotor embryo 3 outer rings and impeller linkage section 13 in Grinding Process, guarantee that runout error is less than 0.05mm, and after tens products of every processing, meeting automatically grinding grinding wheel automatic checking size, precision is high, and efficiency is fast, good stability, avoids artificial incorrect operation.
This deep-well pump rotor major axis has been avoided traditional dress technique of striking, by heating rotor embryo 3, by the principle of expanding with heat and contract with cold, make the whole expansion of rotor embryo 3, the relative rotor embryo 3 inner circumference enlarged-diameter that make, again the rotor embryo 3 of inner circumference enlarged-diameter is picked up, be inserted in rotor construction section 23, rotor embryo 3 is conflicted spacing section of 22 one end, after rotor embryo 3 is cooling, shrink, rotor embryo 3 is completely fixed on rotor construction section 23, avoided knocking rotor embryo 3, rotor embryo 3 is packed into, make to install the restriction that rotor embryo 3 is not subject to rotatingshaft length, and reduced people's labor intensity, and rotor construction section 23 is provided with extending flute 4, while clamping rotor construction section 23 after rotor embryo 3 is retracted, extending flute 4 is shunk, make fixing rotor construction section 23 radial contraction of rotor embryo 3, effectively prevent that rotor embryo 3 from endwisely slipping.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technological schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a deep-well pump rotor major axis, comprise rotatingshaft, rotor embryo, described rotatingshaft comprises pump housing section, motor section, described rotor embryo is fixedly connected in motor section, described pump housing section comprises the water outlet section being arranged in order, thread section, impeller linkage section, water inlet section, described motor section comprises the clutch shaft bearing construction section being arranged in order, spacing section, rotor construction section, the second bearing construction section, described clutch shaft bearing construction section and water inlet section are wholely set, described impeller linkage section excircle side is provided with 2 centrosymmetric fixed pans, it is characterized in that: described rotor construction section external diameter is slightly larger than rotor embryo internal diameter, described rotor embryo is fixedly connected on rotor construction section, described rotor construction section length is greater than rotor embryo length, on described rotor construction section circumference side, Circle-Array is shown at least 4 extending flutes, described extending flute width is 0.1mm-0.3mm, the described extending flute degree of depth is 1mm-1.5mm.
2. according to claim 1, it is characterized in that a kind of deep-well pump rotor major axis: described rotor construction section external diameter is than the large 0.2mm-0.35mm of rotor embryo internal diameter.
3. a kind of deep-well pump rotor major axis according to claim 2, is characterized in that: described extending flute is provided with 4, and described extending flute width is 0.1mm, and the extending flute degree of depth is 1.5mm.
4. a processing technology for deep-well pump rotor major axis, is characterized in that: comprise the steps:
Step 1: prepare bar-like raw material; Choose steel bar and carry out two ends cutting;
Step 2: end face processing; By the steel bar grinding two end surfaces of choosing, at both ends of the surface drill centers;
Step 3: car steel bar; The steel bar of choosing successively turning is gone out to water outlet section, thread section, impeller linkage section, water inlet section, clutch shaft bearing construction section, spacing section, rotor construction section, the second bearing construction section; Turning step is disposable to be completed;
Step 4: mill steel bar; Water outlet section after turning, impeller linkage section, water inlet section, clutch shaft bearing construction section, spacing section, rotor construction section, the second bearing construction section surface are carried out to grinding successively; Grinding step is disposable to be completed;
Step 5: dry rotor embryo; Rotor embryo is heated between 300 degree-350 degree;
Step 6: cut extending flute; On rotor construction section circumference side, cut out extending flute;
Step 7: cartridge rotor embryo; Rotor embryo is directly inserted in rotor construction section; Standing deep-well pump rotor major axis, makes rotor embryo naturally cooling, and rotor embryo is fixedly connected with rotatingshaft;
Step 8: car rotor embryo cylindrical; The rotor embryo that packs rotatingshaft into is carried out to turning processing;
Step 9: melt down insulation; Deep-well pump rotor major axis is reheated between 75 degree-80 degree, be incubated at least 1 hour;
Step 10: milling flat; By 2 fixed pans of impeller linkage section excircle side while Milling Process;
Step 11: fine grinding; Grinding is carried out in rotor embryo outer ring and impeller linkage section.
5. the processing technology of a kind of deep-well pump rotor major axis according to claim 4, is characterized in that: described rotor embryo heating time is between 20 minutes-30 minutes.
6. the processing technology of a kind of deep-well pump rotor major axis according to claim 5, is characterized in that: described rotor embryo heating 25 minutes, described rotor embryo is heated to 300 degree.
7. the processing technology of a kind of deep-well pump rotor major axis according to claim 6, is characterized in that: described extending flute cuts by carbon dioxide laser.
8. the processing technology of a kind of deep-well pump rotor major axis according to claim 7, is characterized in that: described rotor embryo carries out Baking out by heated air circulation industry baking oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439925.6A CN104196750B (en) | 2014-09-01 | 2014-09-01 | A kind of deep well pump rotor major axis and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439925.6A CN104196750B (en) | 2014-09-01 | 2014-09-01 | A kind of deep well pump rotor major axis and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104196750A true CN104196750A (en) | 2014-12-10 |
| CN104196750B CN104196750B (en) | 2016-05-18 |
Family
ID=52082093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410439925.6A Active CN104196750B (en) | 2014-09-01 | 2014-09-01 | A kind of deep well pump rotor major axis and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104196750B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165417A (en) * | 1995-12-04 | 1997-11-19 | 亚瑞亚·勃朗勃威力有限公司 | Method for renewing sliprings |
| CN1421620A (en) * | 2001-11-29 | 2003-06-04 | 株式会社三协精机制作所 | Shrink fit fixing method |
| CN201190679Y (en) * | 2008-05-05 | 2009-02-04 | 江门市瑞荣泵业有限公司 | Transmission shaft of submersible pump |
| CN101705917A (en) * | 2009-12-13 | 2010-05-12 | 华南理工大学 | Permanent-magnetic wind driven generator |
| EP2199616A2 (en) * | 2008-12-19 | 2010-06-23 | Bühler Motor GmbH | Centrifugal pump with fixed axis |
| GB2474345A (en) * | 2009-10-07 | 2011-04-13 | Gen Electric | Fabricating and repairing turbine rotors by cold spraying powder |
| CN102208849A (en) * | 2011-03-07 | 2011-10-05 | 江苏通达动力科技股份有限公司 | Hot sleeve shaft technology of wind-power rotor |
-
2014
- 2014-09-01 CN CN201410439925.6A patent/CN104196750B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165417A (en) * | 1995-12-04 | 1997-11-19 | 亚瑞亚·勃朗勃威力有限公司 | Method for renewing sliprings |
| CN1421620A (en) * | 2001-11-29 | 2003-06-04 | 株式会社三协精机制作所 | Shrink fit fixing method |
| CN201190679Y (en) * | 2008-05-05 | 2009-02-04 | 江门市瑞荣泵业有限公司 | Transmission shaft of submersible pump |
| EP2199616A2 (en) * | 2008-12-19 | 2010-06-23 | Bühler Motor GmbH | Centrifugal pump with fixed axis |
| GB2474345A (en) * | 2009-10-07 | 2011-04-13 | Gen Electric | Fabricating and repairing turbine rotors by cold spraying powder |
| CN101705917A (en) * | 2009-12-13 | 2010-05-12 | 华南理工大学 | Permanent-magnetic wind driven generator |
| CN102208849A (en) * | 2011-03-07 | 2011-10-05 | 江苏通达动力科技股份有限公司 | Hot sleeve shaft technology of wind-power rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104196750B (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105057988B (en) | The method that alloy wire prepares turbine sealing ring | |
| CN101722396A (en) | Process for repairing inner surface damages in outer cylinder and inner cylinder of mine hydraulic support column | |
| CN203210127U (en) | Clamp for coping disc shear blade | |
| CN106372368B (en) | A method of improving large thin-wall revolving structure part Vehicle Processing precision | |
| CN204075834U (en) | A kind of boring jig | |
| CN104196750B (en) | A kind of deep well pump rotor major axis and processing technology thereof | |
| CN104400029A (en) | Preparation method for effectively improving use property of indexable cutter blade | |
| WO2017107818A1 (en) | Processing process for lengthened cutter | |
| CN202357296U (en) | Diamond hob with staggered teeth | |
| CN103817381B (en) | A kind of involute inner spline centering frock and aligning method | |
| CN105058269A (en) | Clamping piece for detecting radial run-out of side face of pulley groove of shock absorber | |
| CN105081685B (en) | A kind of processing method of Corrugator roller air draught slot and preparation method thereof | |
| CN101362213B (en) | Pressure booster blower impeller ex-meridian turning process | |
| CN104647611A (en) | Diamond saw blade | |
| CN103586514A (en) | Processing method for locating plane of aluminum magnesium casing | |
| CN204800024U (en) | Compound milling cutter that takes shape of dustproof groove of automotive brake caliper casing seal groove | |
| CN209614848U (en) | For Crankshaft of Marine Diesel Engine with the centralising device of fraising | |
| CN101912981A (en) | Lathe tool and welding process thereof | |
| CN112555291A (en) | Cardan shaft for conical gland and use method thereof | |
| CN205967492U (en) | Be suitable for drilling machine of processing high rigidity material | |
| CN103128660B (en) | Grinding method for grinding gas-turbine wheel by using fixture | |
| CN207288454U (en) | A kind of dedicated tool of hollow pipe correction | |
| CN105983573A (en) | Rolled steel production process | |
| CN111267189A (en) | Woodworking milling cutter and machining method thereof | |
| CN105347660B (en) | The pin shearing device of electricity-saving lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Deep-well pump rotor long shaft and machining process thereof Effective date of registration: 20170830 Granted publication date: 20160518 Pledgee: Bank of China, Limited by Share Ltd, Huangyan branch Pledgor: ZHEJIANG FROG PUMP INDUSTRY CO., LTD. Registration number: 2017330000093 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Deep-well pump rotor long shaft and machining process thereof Effective date of registration: 20170919 Granted publication date: 20160518 Pledgee: Bank of China, Limited by Share Ltd, Huangyan branch Pledgor: ZHEJIANG FROG PUMP INDUSTRY CO., LTD. Registration number: 2017330000108 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170915 Granted publication date: 20160518 Pledgee: Bank of China, Limited by Share Ltd, Huangyan branch Pledgor: ZHEJIANG FROG PUMP INDUSTRY CO., LTD. Registration number: 2017330000093 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190114 Granted publication date: 20160518 Pledgee: Bank of China, Limited by Share Ltd, Huangyan branch Pledgor: ZHEJIANG FROG PUMP INDUSTRY CO., LTD. Registration number: 2017330000108 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Taizhou City, Zhejiang province 318020 Huangyan District Lianfeng Lantau industrial zone. Patentee after: Frog Pump Co., Ltd Address before: Taizhou City, Zhejiang province 318020 Huangyan District Lianfeng Lantau industrial zone. Patentee before: ZHEJIANG FROG PUMP INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |