CN105750594A - Stepped type drilling template for sectional type spindle connecting pin hole of compressor and auxiliary guide sleeve - Google Patents
Stepped type drilling template for sectional type spindle connecting pin hole of compressor and auxiliary guide sleeve Download PDFInfo
- Publication number
- CN105750594A CN105750594A CN201610287505.XA CN201610287505A CN105750594A CN 105750594 A CN105750594 A CN 105750594A CN 201610287505 A CN201610287505 A CN 201610287505A CN 105750594 A CN105750594 A CN 105750594A
- Authority
- CN
- China
- Prior art keywords
- hole
- diameter
- circumference
- noumenon
- holes
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a processing method of a stepped type drilling template, a guide sleeve, a mold and a compressor rotor spindle. The template comprises a first main body; the first main body is stepped and cylindrical, a first through hole is formed in the center of the first main body, a plurality of second through holes are formed in the periphery of the first through hole, the circle centers of the plurality of second through holes are jointly on a first circumference, a plurality of third through holes are formed in the periphery of the first through hole, the circle centers of the plurality of third through holes are jointly on a second circumference, the first through hole, the first circumference and the second circumference are concentric circles, and the diameter of the second circumference is more than that of the first through hole and is less than that of the first circumference. The guide sleeve comprises a second main body, the second main body is stepped and cylindrical, and a fourth through hole is formed in the center of the second main body and used for accommodating a drilling screw rod; a flange is arranged at one end of the second main body, and the external diameter of the flange is more than the internal diameter of each of the second through holes. The mold is formed by combining the template and the guide sleeve. The method is realized based on the mold. The template is high in operation precision and simple and convenient to operate.
Description
Technical field
The present invention relates to Compressor Technology field, particularly relate to a kind of staged bore template, guide pin bushing, mould, compressor drum spindle processing method.
Background technology
Compressor bank provides power " heart equipment " for whole Coal Chemical Industry technological process, and compressor bank refers to, compressor bank produces the oxygen product of 100,000 standard cubic meters per hour.
In compressor, the rotor main shaft overall length of application is 7.6 meters, and maximum gauge is more than 1.2 meters, and gross weight is 27 tons, is made up of three sections of axles.Being attached after three sections of main shaft polish, this technology is domestic still belongs to the first.As the rotor of compressor, the balance quality of rotor is required high, connect by 20-φ 50H7 pin-and-hole so three sections of main shafts connect, enable the center of three sections of main shafts point-blank, it is ensured that balance quality.Pin-and-hole Working position precision on three sections of main shafts is to realize the key that three sections of main shaft centerings connect.
Existing compressor bank technology almost complete monopoly is in foreign country's science-and-technology enterprise, and that buys and apply is relatively costly.
Summary of the invention
In view of this, the present invention provides a kind of staged bore template, guide pin bushing, mould, compressor drum spindle processing method, and it ensure that the centring property after the rotor main shaft docking of application in compressor, thus more suitable for practicality.
In order to reach above-mentioned first purpose, the technical scheme of staged bore template provided by the invention is as follows:
Staged bore template provided by the invention includes the first noumenon,
Described the first noumenon is that staged is cylindric,
Described the first noumenon center offers the first through hole, around described first through hole, offer several the second through holes, the center of circle of several the second through holes described is co-located on the first circumference, around described first through hole, offer several third through-holes, the center of circle of several third through-holes described is co-located on the second circumference, described first through hole, the first circumference, the second circumference are concentric circular, the diameter of the first circumference described in the diameter < of the second circumference described in the diameter < of described first through hole；
Several second through holes described, several third through-holes can be corresponding with the position of the boring to be processed of mandrel.
Staged bore template provided by the invention also can be applied to the following technical measures to achieve further.
As preferably, with described the first noumenon end face for starting point, recessed seam is offered to described the first noumenon, described recessed seam circle is concentric circular with described first through hole, the diameter of the first circumference described in the diameter < of the second circumference described in recessed seam circular diameter < described in the diameter < of described first through hole.
As preferably, with another end face of described the first noumenon for starting point, it is protruding with male half coupling outside described the first noumenon, described male half coupling circle is concentric circular with described first through hole, the diameter of the first circumference described in the diameter < of the second circumference described in male half coupling circular diameter < described in the diameter < of described first through hole.
As preferably, the transition corner between described male half coupling circle and another end face of described the first noumenon is rounded.
In order to reach above-mentioned second purpose, the technical scheme of boring guide pin bushing provided by the invention is as follows:
Boring guide pin bushing provided by the invention includes the second body,
Described second body is that staged is cylindric,
Described second body central offers fourth hole, and described fourth hole is used for accommodating boring screw rod,
One end of described second body is provided with flange, the internal diameter of the second through hole described in the external diameter > of described flange.
Boring guide pin bushing provided by the invention also can be applied to the following technical measures to achieve further.
As preferably, described flange is stepped, at least includes two stage steps.
As preferably, the other end of described second body is provided with lead angle.
In order to reach above-mentioned 3rd purpose, the technical scheme of hole drilling die provided by the invention is as follows:
Hole drilling die provided by the invention includes staged bore template provided by the invention, boring guide pin bushing provided by the invention,
Described drilling guide set is arranged in described second through hole,
Described flange backstop is in one end of described second through hole.
In order to reach above-mentioned 4th purpose, the technical scheme of compressor drum spindle processing method provided by the invention is as follows:
Compressor drum spindle processing method provided by the invention comprises the following steps:
Drilling guide set provided by the invention is penetrated to the second through hole of staged bore template provided by the invention；
The screw rod being used for holing is penetrated to described fourth hole；
One of them end face of described the first noumenon and the end face to be processed of rotor main shaft to be processed is made to fit completely；
Perform boring action, complete compressor drum spindle processing.
Compressor drum spindle processing method provided by the invention also can be applied to the following technical measures to achieve further.
As preferably, the end face to be processed of described rotor main shaft to be processed is provided with groove, and the diameter of described groove is identical with described male half coupling diameter of a circle.
When the hole drilling die that staged bore template provided by the invention, boring guide plate combination obtain is used for compressor drum spindle processing, drilling guide set provided by the invention is penetrated to the second through hole of staged bore template provided by the invention；The screw rod being used for holing is penetrated to fourth hole；One of them end face of the first noumenon and the end face to be processed of rotor main shaft to be processed is made to fit completely；Perform boring action, complete compressor drum spindle processing.Owing to boring screw rod is linked into the end face to be processed of rotor main shaft to be processed by being arranged on the fourth hole that drilling guide puts, it is subject to the restriction of staged bore template thickness, the probability of boring screw rod run-off the straight reduces, after machining, it is possible to tripped out together together with boring screw rod by tripping out the mode of this boring guide pin bushing.Not only drilling operation precision improves, and it is also easier to complete the round-off work after boring.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding.Accompanying drawing is only for illustrating the purpose of preferred implementation, and is not considered as limitation of the present invention.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
The cross-sectional schematic of the staged bore template that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the partial enlargement structural representation of C portion in Fig. 1；
The staged bore template that Fig. 3 provides for the embodiment of the present invention look up structural representation；
The half section schematic diagram of the boring guide pin bushing that Fig. 4 provides for the embodiment of the present invention；
Fig. 5 embodiment of the present invention provide staged bore template provide with the embodiment of the present invention hole guide pin bushing coordinate after cross-sectional schematic；
Fig. 6 is the partial enlargement structural representation of part A in Fig. 4 or Fig. 5；
The staged bore template that Fig. 7 provides for the embodiment of the present invention, the matching relationship schematic diagram between boring guide pin bushing and mandrel hole to be drilled；
The staged bore template that Fig. 8 provides for the application embodiment of the present invention, guide pin bushing of holing machined the broken section structural representation of the mandrel after boring；
Fig. 9 be in Fig. 8 H-H to sectional structure schematic diagram；
The flow chart of steps of the compressor drum spindle processing method that Figure 10 provides for the embodiment of the present invention.
Detailed description of the invention
The present invention solves prior art Problems existing, it is provided that a kind of staged bore template, guide pin bushing, mould, compressor drum spindle processing method, it ensure that the centring property after the rotor main shaft docking of application in compressor, thus more suitable for practicality.
For further setting forth that the present invention reaches technological means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to the staged bore template proposed according to the present invention, guide pin bushing, mould, compressor drum spindle processing method, its detailed description of the invention, structure, feature and effect thereof, describe in detail as after.In the following description, what different " embodiments " or " embodiment " referred to is not necessarily same embodiment.Additionally, special characteristic in one or more embodiment, structure or feature can be combined by any suitable form.
The terms "and/or", is only a kind of incidence relation describing affiliated partner, and expression can exist three kinds of relations, such as, A and/or B, concrete is interpreted as: can include A and B simultaneously, can individualism A, it is also possible to individualism B, it is possible to possess above-mentioned three kinds of any one situations.
Embodiment
Referring to accompanying drawing 1 and accompanying drawing 3, the staged bore template that the embodiment of the present invention provides includes the first noumenon 1, the first noumenon 1 is cylindric in staged, the first noumenon 1 center offers the first through hole 5, around the first through hole 5, offer several the second through holes 2, the center of circle of several the second through holes 2 is co-located on the first circumference, around the first through hole 5, offer several third through-holes 6, the center of circle of several third through-holes 6 is co-located on the second circumference, first through hole 5, first circumference, second circumference is concentric circular, the diameter of diameter < first circumference of diameter < second circumference of the first through hole 5；Several second through holes 2, several third through-holes 6 can be corresponding with the position of the boring to be processed of mandrel.
Wherein, with the first noumenon 1 end face for starting point, recessed seam 3 is offered to the first noumenon 1, recessed seam 3 circle is concentric circular with the first through hole 5, the diameter of diameter < first circumference of recessed seam 3 circular diameter < second circumference of diameter < of the first through hole 5.
Wherein, with another end face of the first noumenon 1 for starting point, it is protruding with male half coupling 4 to the first noumenon 1 is outside, male half coupling 4 circle is concentric circular with the first through hole 5, the diameter of diameter < first circumference of diameter < male half coupling 4 circular diameter < second circumference of the first through hole 5.Design by this male half coupling Yu rotor main shaft upper groove to be processed, it is possible to ensure the centering between this staged bore template and rotor main shaft to be processed.
Wherein, referring to accompanying drawing 2, the transition corner between male half coupling 4 circle and another end face of the first noumenon 1 is rounded.Thus avoiding stress to concentrate, extend service life.
Referring to accompanying drawing 4, the boring guide pin bushing that the embodiment of the present invention provides includes the second body 7, second body 7 is cylindric in staged, second body 7 center offers fourth hole 8, fourth hole 8 is for accommodating boring screw rod 15, one end of second body 7 is provided with flange, the internal diameter of external diameter > second through hole 2 of flange.
Wherein, flange is stepped, at least includes two stage steps, in the present embodiment, and the label of two stage steps respectively 10 and 11.Thus, between the end face of flange and staged bore template, there is gap, it is simple to the instrument tripping out this boring guide pin bushing is filled in wherein.
Wherein, referring to accompanying drawing 6, the other end of the second body 7 is provided with lead angle.Consequently facilitating this drilling guide set penetrates to this second through hole.
Referring to accompanying drawing 5, the boring guide pin bushing that the hole drilling die that the embodiment of the present invention provides includes the staged bore template of embodiment of the present invention offer, the embodiment of the present invention provides, drilling guide set is arranged in the second through hole, and flange backstop is in one end of the second through hole.
Referring to accompanying drawing 10, compressor drum spindle processing method provided by the invention comprises the following steps:
Step S1: drilling guide set provided by the invention is penetrated to the second through hole 2 of staged bore template provided by the invention；
Step S2: the screw rod 15 being used for holing is penetrated to fourth hole 8；
Step S3: make one of them end face of the first noumenon 1 and the end face to be processed of rotor main shaft 13 to be processed fit completely；
Step S4: perform boring 14 actions, complete compressor drum spindle processing.
Wherein, the end face to be processed of rotor main shaft 13 to be processed is provided with groove, and the diameter of groove is identical with male half coupling 4 diameter of a circle.
In the present embodiment, the rounded transition in corner of this groove, thus avoiding stress to concentrate, extend service life.
The hole drilling die that staged bore template provided by the invention, boring guide plate combination obtain is used for compressor drum main shaft 13 and adds man-hour, drilling guide set provided by the invention is penetrated to the second through hole 2 of staged bore template provided by the invention；The screw rod 15 being used for holing is penetrated to fourth hole 8；One of them end face of the first noumenon 1 and the end face to be processed of rotor main shaft 13 to be processed is made to fit completely；Perform boring 14 actions, complete compressor drum spindle processing.The fourth hole 8 put by being arranged on drilling guide due to boring screw rod 15 is linked into the end face to be processed of rotor main shaft 13 to be processed, it is subject to the restriction of staged bore template thickness, the probability of boring screw rod 15 run-off the straight reduces, after machining, it is possible to tripped out together together with boring screw rod 15 by tripping out the mode of this boring guide pin bushing.Not only drilling operation precision improves, and it is also easier to complete the round-off work after boring.
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a staged bore template, it is characterised in that include the first noumenon,
Described the first noumenon is that staged is cylindric,
Described the first noumenon center offers the first through hole, around described first through hole, offer several the second through holes, the center of circle of several the second through holes described is co-located on the first circumference, around described first through hole, offer several third through-holes, the center of circle of several third through-holes described is co-located on the second circumference, described first through hole, the first circumference, the second circumference are concentric circular, the diameter of the first circumference described in the diameter < of the second circumference described in the diameter < of described first through hole；
Several second through holes described, several third through-holes can be corresponding with the position of the boring to be processed of mandrel.
2. staged bore template according to claim 1, it is characterized in that, with described the first noumenon end face for starting point, recessed seam is offered to described the first noumenon, described recessed seam circle is concentric circular with described first through hole, the diameter of the first circumference described in the diameter < of the second circumference described in recessed seam circular diameter < described in the diameter < of described first through hole.
3. staged bore template according to claim 1, it is characterized in that, with another end face of described the first noumenon for starting point, it is protruding with male half coupling outside described the first noumenon, described male half coupling circle is concentric circular with described first through hole, the diameter of the first circumference described in the diameter < of the second circumference described in male half coupling circular diameter < described in the diameter < of described first through hole.
4. staged bore template according to claim 3, it is characterised in that the transition corner between described male half coupling circle and another end face of described the first noumenon is rounded.
5. a boring guide pin bushing, it is characterised in that include the second body,
Described second body is that staged is cylindric,
Described second body central offers fourth hole, and described fourth hole is used for accommodating boring screw rod,
One end of described second body is provided with flange, the internal diameter of the second through hole described in the external diameter > of described flange.
6. boring guide pin bushing according to claim 1, it is characterised in that described flange is stepped, at least includes two stage steps.
7. boring guide pin bushing according to claim 6, it is characterised in that the other end of described second body is provided with lead angle.
8. a hole drilling die, including arbitrary described boring guide pin bushing in described staged bore template arbitrary in Claims 1 to 4, claim 5～7,
Described drilling guide set is arranged in described second through hole,
Described flange backstop is in one end of described second through hole.
9. compressor drum spindle processing method, it is characterised in that comprise the following steps:
Described drilling guide set arbitrary in claim 5～7 is penetrated to Claims 1 to 4 in the second through hole of arbitrary described staged bore template；
The screw rod being used for holing is penetrated to described fourth hole；
One of them end face of described the first noumenon and the end face to be processed of rotor main shaft to be processed is made to fit completely；
Perform boring action, complete compressor drum spindle processing.
10. compressor drum spindle processing method according to claim 9, it is characterised in that described staged bore template is the staged bore template described in claim 3,
The end face to be processed of described rotor main shaft to be processed is provided with groove, and the diameter of described groove is identical with described male half coupling diameter of a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287505.XA CN105750594A (en) | 2016-04-29 | 2016-04-29 | Stepped type drilling template for sectional type spindle connecting pin hole of compressor and auxiliary guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287505.XA CN105750594A (en) | 2016-04-29 | 2016-04-29 | Stepped type drilling template for sectional type spindle connecting pin hole of compressor and auxiliary guide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105750594A true CN105750594A (en) | 2016-07-13 |
Family
ID=56323291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610287505.XA Pending CN105750594A (en) | 2016-04-29 | 2016-04-29 | Stepped type drilling template for sectional type spindle connecting pin hole of compressor and auxiliary guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105750594A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350525A (en) * | 2017-07-31 | 2017-11-17 | 深圳利工科技有限公司 | A kind of numeric control drilling machine tool bores the guide sleeve structure of rifle |
| CN111842975A (en) * | 2020-07-30 | 2020-10-30 | 哈尔滨电机厂有限责任公司 | Method for machining connecting pin hole of steam end coupler of rotor of large steam turbine generator |
| CN115179018A (en) * | 2022-05-07 | 2022-10-14 | 神钢无锡压缩机股份有限公司 | Oil-free screw rotor preassembling device and assembling method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201677064U (en) * | 2010-05-04 | 2010-12-22 | 沈机集团昆明机床股份有限公司 | Drilling template |
| CN101941091A (en) * | 2010-10-09 | 2011-01-12 | 天津津通瓦特斯阀门制造有限公司 | Drilling mould for flange connection hole at side of butterfly valve |
| CN201776486U (en) * | 2010-06-28 | 2011-03-30 | 江阴南工锻造有限公司 | Discoid drilling jig |
| CN103009002A (en) * | 2012-12-21 | 2013-04-03 | 上海电气电站设备有限公司 | Assembling and machining process for steam cabinet of steam turbine and nozzle group |
| CN202910347U (en) * | 2012-10-26 | 2013-05-01 | 天津赛瑞机器设备有限公司 | Shared boring template for machining turbine main shaft |
| CN204711284U (en) * | 2015-04-30 | 2015-10-21 | 上海东方泵业(集团)有限公司 | One holds nog plate drilling equipment |
| CN105057745A (en) * | 2015-08-18 | 2015-11-18 | 无锡乐华自动化科技有限公司 | Drill plate for forming mold tool |
| CN204878398U (en) * | 2015-08-31 | 2015-12-16 | 成都正广科技有限公司 | Axle fixed structure convenient to dismantle |
-
2016
- 2016-04-29 CN CN201610287505.XA patent/CN105750594A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201677064U (en) * | 2010-05-04 | 2010-12-22 | 沈机集团昆明机床股份有限公司 | Drilling template |
| CN201776486U (en) * | 2010-06-28 | 2011-03-30 | 江阴南工锻造有限公司 | Discoid drilling jig |
| CN101941091A (en) * | 2010-10-09 | 2011-01-12 | 天津津通瓦特斯阀门制造有限公司 | Drilling mould for flange connection hole at side of butterfly valve |
| CN202910347U (en) * | 2012-10-26 | 2013-05-01 | 天津赛瑞机器设备有限公司 | Shared boring template for machining turbine main shaft |
| CN103009002A (en) * | 2012-12-21 | 2013-04-03 | 上海电气电站设备有限公司 | Assembling and machining process for steam cabinet of steam turbine and nozzle group |
| CN204711284U (en) * | 2015-04-30 | 2015-10-21 | 上海东方泵业(集团)有限公司 | One holds nog plate drilling equipment |
| CN105057745A (en) * | 2015-08-18 | 2015-11-18 | 无锡乐华自动化科技有限公司 | Drill plate for forming mold tool |
| CN204878398U (en) * | 2015-08-31 | 2015-12-16 | 成都正广科技有限公司 | Axle fixed structure convenient to dismantle |
Non-Patent Citations (1)
| Title |
|---|
| 刘光启，辛兆杰: "《钳工速查速算手册》", 31 January 2010 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350525A (en) * | 2017-07-31 | 2017-11-17 | 深圳利工科技有限公司 | A kind of numeric control drilling machine tool bores the guide sleeve structure of rifle |
| CN111842975A (en) * | 2020-07-30 | 2020-10-30 | 哈尔滨电机厂有限责任公司 | Method for machining connecting pin hole of steam end coupler of rotor of large steam turbine generator |
| CN111842975B (en) * | 2020-07-30 | 2022-09-02 | 哈尔滨电机厂有限责任公司 | Method for machining connecting pin hole of steam end coupler of rotor of large steam turbine generator |
| CN115179018A (en) * | 2022-05-07 | 2022-10-14 | 神钢无锡压缩机股份有限公司 | Oil-free screw rotor preassembling device and assembling method |
| CN115179018B (en) * | 2022-05-07 | 2023-08-15 | 神钢无锡压缩机股份有限公司 | Oil-free screw rotor pre-assembly device and assembly method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101774111B (en) | Processing method of ultra-thin annular pieces | |
| CN104400474B (en) | High accuracy gyroscope moving coil framework processing technique based on rotary ultrasonic and special tooling | |
| CN105750594A (en) | Stepped type drilling template for sectional type spindle connecting pin hole of compressor and auxiliary guide sleeve | |
| CN101666376A (en) | Processing method of case body and case cover of gear case | |
| CN104308468A (en) | High-speed gearbox processing method | |
| CN102506675A (en) | Coaxiality detecting method of large-span holes | |
| US20160368065A1 (en) | Valve Hole and Machining Method Thereof | |
| CN111958012B (en) | Method for guaranteeing precision of shaft coupling and shaft hole boring | |
| CN106270660A (en) | A kind of pin-and-hole processing tool and processing method | |
| CN102717232A (en) | Manufacturing method for half liner in head sheave of large-sized elevator | |
| CN105773088B (en) | The processing method of compressor segmented main shaft connecting pin bores | |
| CN106224374A (en) | Angular contact ball bearing, bearing assembly and manufacture method thereof, compound formulation | |
| CN206299683U (en) | Pivoting support with pin tooth | |
| CN105856429A (en) | Method for reducing machining stress concentration of glass hole | |
| CN110610038B (en) | Prediction method for friction coefficient of bonding surface without key connection | |
| CN205950301U (en) | Rotary fixture of eccentric deep hole of high accuracy | |
| CN102380760B (en) | Processing method for engineering diamond core drill matrix | |
| CN109192611B (en) | Armature shaft turning tool | |
| CN106735384A (en) | Rotor of steam turbo generator shaft coupling is to group using pin-and-hole processing method | |
| CN106425304A (en) | Machining process for oil jet nozzle | |
| CN103537555B (en) | Plastic mold mo(u)ld bottom half and processing method thereof | |
| CN109093323B (en) | Mining machinery box body processing technology | |
| CN109940358A (en) | A kind of detachable trunnion assembly method of large-scale metallurgical slag ladle | |
| CN205816860U (en) | A kind of bell housing 6 hole drill machine | |
| CN209323139U (en) | The internal rotor component of sewing machine oil pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Bai Yun Inventor after: Zhou Shunxin Inventor after: Cang Xiaowei Inventor after: Ge Jing Inventor before: Bai Yun Inventor before: Zhou Shunxin Inventor before: Cang Xiaowei Inventor before: Ge Jing |
|
| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
|
| RJ01 | Rejection of invention patent application after publication |