CN102501918B - Combined technological diesel for pre-assembly of locomotive diesel - Google Patents

Combined technological diesel for pre-assembly of locomotive diesel Download PDF

Info

Publication number
CN102501918B
CN102501918B CN 201110364846 CN201110364846A CN102501918B CN 102501918 B CN102501918 B CN 102501918B CN 201110364846 CN201110364846 CN 201110364846 CN 201110364846 A CN201110364846 A CN 201110364846A CN 102501918 B CN102501918 B CN 102501918B
Authority
CN
China
Prior art keywords
diesel engine
assembled
locomotive
technological
diesel
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.)
Active
Application number
CN 201110364846
Other languages
Chinese (zh)
Other versions
CN102501918A (en
Inventor
黄强
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.)
CRRC Chengdu Co Ltd
Original Assignee
CSR Chengdu 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 CSR Chengdu Co Ltd filed Critical CSR Chengdu Co Ltd
Priority to CN 201110364846 priority Critical patent/CN102501918B/en
Publication of CN102501918A publication Critical patent/CN102501918A/en
Application granted granted Critical
Publication of CN102501918B publication Critical patent/CN102501918B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a combined technological diesel for the pre-assembly of a locomotive diesel. The combined technological diesel comprises underframes, bases, lifting mechanisms, moving mechanisms, adjusting seats, adjusting rods, positioning seats and positioning pins, wherein, the bases are arranged on both horizontal sides of the technological diesel, and are connected with the underframes through the moving mechanisms; the adjusting seats are arranged at two longitudinal ends of the technological diesel; the adjusting rods are arranged on the adjusting seats; the adjusting rods are retractable in the longitudinal direction; the adjusting seats are connected with the bases through the lifting mechanisms; the four positioning seats are provided, two of the positioning seats are respectively fixed under the adjusting seats positioned at the two ends, and the other two positioning seats are respectively arranged between the both horizontal sides of the technological diesel and connected with the underframes through the moving mechanisms; and the positioning pins that can move are arranged on the positioning seats. The combined technological diesel is convenient to determine the linear oscillation amplitude of the diesel, and is easier to determine the positions of correlative components of a locomotive transmission system; in addition, one combined technological diesel can replace a plurality of technological diesels, so that labor intensity can be reduced effectively.

Description

Diesel engine of locomotive is assembled the assembled technological diesel engine in advance
Technical field
The invention belongs to machinery manufacturing industry, relate to a kind of technology diesel engine, particularly a kind of diesel engine of locomotive is assembled the assembled technological diesel engine in advance.
Background technology
Diesel locomotive newly make, overhaul and in repair when locomotive transmission system is installed, the relevant position that need to determine diesel engine, starts change speed gear box, static-pressure gearbox, starter motor, cooling blower etc., the transmission shaft that connects the diesel engine two ends at last, comprise the height, position, the left and right sides, right alignment of associated components etc., namely determine the amplitude of oscillation of a line of diesel engine.If related accessory installation site on locomotive car body is improper, may causes locomotive vibration, even damage accessory.Therefore the locomotive transmission system of packaging technology installation preferably need be arranged.Domestic railway systems assembling of present stage locomotive transmission system, the one, adopting prototype car diesel engine is benchmark, determines other related accessory position, the 2nd, adopt single easy technology diesel engine, determine the related accessory position.
Adopting prototype car diesel engine is benchmark, mobile inconvenient owing to diesel engine of locomotive deadweight 20~35t, causes installation period longer, and the amplitude of oscillation of a line of mounting diesel engine is difficult for definite shortcoming.
Adopt single easy technology diesel engine, have only longitudinal register, and do not have located lateral, and adjust bar and the change speed gear box butt flange of simulation diesel engine and change speed gear box adapter shaft are not contour, self precision is not high.Different diesel engine of locomotive are installed and are needed the different process diesel engine, and quantity is many, deposit and take up an area of greatly.When the longitudinal centerline of locomotive car body is not known, can't utilize the technology diesel engine to determine the installation site of other related accessory position, often can not satisfy the locomotive transmission system installation requirement.
Summary of the invention
The objective of the invention is to: at the problems referred to above, provide a kind of diesel engine of locomotive to assemble the assembled technological diesel engine in advance, be convenient to determine the amplitude of oscillation of a line of diesel engine, more easily determine the position of locomotive transmission system associated components, assembled technological diesel engine of many technology use for diesel engine is replaced, effectively reduce labour intensity.
The object of the invention realizes by following technical proposals: a kind of diesel engine of locomotive is assembled the assembled technological diesel engine in advance, it is characterized in that: comprise underframe, base, lifting mechanism, travel mechanism, adjustment seat, adjust bar, positioning seat and pilot pin, wherein base is arranged on technology diesel engine both lateral sides, is connected on the underframe by travel mechanism; Adjustment seat is arranged on the vertical two ends of technology diesel engine, and adjustment seat is provided with adjust bar, but the adjust bar longitudinal extension, and adjustment seat is connected on the base by lifting mechanism; Positioning seat one has 4,2 adjustment seat belows that are separately fixed at two ends wherein, and other 2 are separately positioned in the middle of the technology diesel engine both lateral sides, are connected on the underframe by travel mechanism; Positioning seat is provided with movably pilot pin.
As optimal way, described adjustment seat is provided with level indicator, and the level indicator at two ends is diagonal line and arranges.
As optimal way, but described base is provided with the adjusting bolt of adjusting process diesel engine level.
As optimal way, described base side be provided with the band scale steel ruler, during along technology diesel engine longitudinal 2 observation and pilot pin position side by side, steel ruler is connected with base by hand screw.
As optimal way, described lifting mechanism and travel mechanism flexibly connect by positioning runner and underframe and realize lifting and movement.
As optimal way, described pilot pin flexibly connects by T slot and positioning seat.
As optimal way, described adjust bar is provided with scale.
As optimal way, described adjust bar is by in 2 supporting steel pipes of copper sheathing kinematic support on adjustment seat, and copper sheathing is connected with the supporting steel pipe by bolt.
As optimal way, be equipped with lubricating cup on the described supporting steel pipe, the lubricating cup end opening contacts with adjust bar.
As optimal way, described underframe is truss structure, and adjustment seat and base are detachable.
Working process of the present invention is: in the pre-assembling process of assembled technological diesel engine, utilize its vertical two ends and both lateral sides 4 movably pilot pin form the cross line location, wherein the pilot pin at vertical two ends can reach the function of longitudinal register according to the vehicle frame longitudinal centerline, the pilot pin of both lateral sides then reaches the function of located lateral according to the vehicle frame cross central line, also can check the vehicle frame line of centers simultaneously.When the vehicle frame line of centers is not known, as long as any two locating points are arranged, also can utilize technology diesel engine cross line positioning function location, finally determine the position of diesel engine on locomotive, the base of technology diesel engine and the mount pad on the locomotive are connected and fixed by bolt.
Adjust bar on the adjustment seat of the vertical two ends of assembled technological diesel engine is used for the adapter shaft that simulation connects diesel engine two ends change speed gear box, the height of adjustment seat can be by the lifting mechanism adjustment, make adjust bar and change speed gear box butt flange contour by adjusting, adjust bar and adjustment seat flexibly connect scalable, and have corresponding scale, determine that further technology diesel engine both sides start relevant positions such as change speed gear box and static-pressure gearbox.The assembled technological diesel engine is by lifting mechanism and travel mechanism, and adjustment seat, base and positioning seat are mobile at positioning runner, adjusts the adjust bar height, and the installation of the locomotive transmission system parts of different automobile types is satisfied in the position of base and positioning seat.
In pre-assembling process, can be the level indicator that diagonal line arranges by two ends, adjustment seat plane and observe the horizontal situation of technology diesel engine, the adjusting bolt by arranging on the technology diesel engine base again, the level of adjusting process diesel engine.Under the situation that guarantees technology diesel engine level, between technology diesel engine base and the locomotive mount pad gap may appear.The base side is provided with the steel ruler of band scale, during along technology diesel engine longitudinal 2 observation and pilot pin position side by side, when gapped between base and the locomotive mount pad, measure diff-H between steel ruler and the pilot pin by scale, be diesel engine base and locomotive mount pad gap length numerical value, fill up the gap by the pad that installs respective thickness additional and guarantee to install firmly.
By the pre-assembling of assembled technological diesel engine, determined the relevant position of its installation site on locomotive and coupled startup change speed gear box, static-pressure gearbox, starter motor, cooling blower etc.; By connecting the transmission shaft (adjust bar) at diesel engine two ends, comprise the height, position, the left and right sides, right alignment of associated components etc., namely determine the amplitude of oscillation of a line of diesel engine.At last the technology diesel engine is disassembled, change corresponding true diesel engine.
Beneficial effect of the present invention: the assembled technological diesel engine utilizes cross line location, accuracy of positioning height.Longitudinal register function according to the vehicle frame longitudinal centerline is not only arranged, and the located lateral function according to the vehicle frame cross central line is arranged, also can check the vehicle frame line of centers simultaneously.When the vehicle frame line of centers is not known, as long as any two locating points are arranged, just can utilize technology diesel engine cross line positioning function, determine the position of diesel engine on locomotive.The adjust bar of simulation diesel engine and change speed gear box adapter shaft can make itself and change speed gear box butt flange contour by lifting mechanism adjustment height, relends the scale that helps on the adjust bar, the convenient relevant position of determining equipment such as diesel engine and startup change speed gear box, static-pressure gearbox.
The assembled technological diesel engine is by lifting mechanism and travel mechanism, and adjustment seat, base and positioning seat are mobile at positioning runner, adjusts the adjust bar height, and the installation of the locomotive transmission system parts of different automobile types is satisfied in the position of base and positioning seat.So, many technology diesel engines can replace with an assembled technological diesel engine, are applicable to the pre-assembling of multiple model diesel engine of locomotive, have effectively reduced labour intensity.
Be the horizontal situation that level indicator that diagonal line arranges can be observed the technology diesel engine on the adjustment seat of two ends, the adjusting bolt that cooperates the adjustment level of base setting to use has guaranteed that the level of diesel engine is installed.The steel ruler of the band scale that the base side arranges can be measured the gap that may exist between the horizontal situation lower bottom base of diesel engine and the locomotive mount pad guaranteeing, conveniently installs the respective thickness pad additional and has guaranteed solid and reliable.In addition, adjust bar is supported on the adjustment seat 2 the supporting steel pipes by copper sheathing, and the supporting steel pipe also plays the effect of guiding except supporting adjust bar, guarantees that adjust bar moves along a straight line can not be offset in telescopic process.The lubricating cup that wears on the supporting steel pipe can contain lubricating oil, and the lubricating cup end opening contacts with adjust bar lubricating oil is coated in copper sheathing and adjust bar contact site, effectively reduces the wearing and tearing of adjust bar under frequent the use.
Assembled technological diesel engine underframe is truss mechanism, through processing, and good looking appearance, rigidity is strong, and is not yielding; Detouchable adjustment seat and base, maintenance, easy to adjust.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the partial enlarged drawing of B among Fig. 1;
Fig. 4 is the partial enlarged drawing of C among Fig. 1;
Fig. 5 is that A among Fig. 3 is to view;
Fig. 6 is the partial enlarged drawing of D among Fig. 3;
Fig. 7 is the partial enlarged drawing of E among Fig. 2;
Fig. 8 is the partial enlarged drawing of F among Fig. 2;
Fig. 9 is the partial enlarged drawing of G among Fig. 2.
Mark among the figure, wherein 1 is that pilot pin, 2 is hand screw for T slot, 17 for bolt, 16 for lubricating cup, 15 for copper sheathing, 14 for supporting steel pipe, 13 for steel ruler, 11 level indicators, 12 for underframe, 10 for positioning seat, 9 for travel mechanism, 8 for regulation cock, 7 for base, 6 for lifting mechanism, 5 for adjustment seat, 4 for adjust bar, 3.
The specific embodiment
Following non-limiting examples is used for explanation the present invention.
Embodiment:
Extremely shown in Figure 9 as Fig. 1, a kind of diesel engine of locomotive is assembled the assembled technological diesel engine in advance, it is characterized in that: comprise underframe 9, base 5, lifting mechanism 4, travel mechanism 7, adjustment seat 3, adjust bar 2, positioning seat 8 and pilot pin 1, wherein base 5 is arranged on technology diesel engine both lateral sides, is connected on the underframe 9 by travel mechanism 7; Adjustment seat 3 is arranged on the vertical two ends of technology diesel engine, and adjustment seat 3 is provided with adjust bar 2, but adjust bar 2 longitudinal extensions, and adjustment seat 3 is connected on the base 5 by lifting mechanism 4; Positioning seat 8 one has 4,2 adjustment seat 3 belows that are separately fixed at two ends wherein, other 2 are separately positioned in the middle of the technology diesel engine both lateral sides, be connected on the underframe 9 by travel mechanism 7, described lifting mechanism 4 and travel mechanism 7 flexibly connect by positioning runner and underframe 9 and realize lifting and movement; Positioning seat 8 is provided with movably pilot pin 1, and pilot pin 1 flexibly connects by T slot 16 and positioning seat 8.
In the pre-assembling process of assembled technological diesel engine, utilize its vertical two ends and both lateral sides 4 movably pilot pin 1 form the cross line location, wherein the pilot pin 1 at vertical two ends can reach the function of longitudinal register according to the vehicle frame longitudinal centerline, the pilot pin 1 of both lateral sides then reaches the function of located lateral according to the vehicle frame cross central line, also can check the vehicle frame line of centers simultaneously.When the vehicle frame line of centers is not known, as long as any two locating points are arranged, also can utilize technology diesel engine cross line positioning function location, finally determine the position of diesel engine on locomotive, the base 5 of technology diesel engine is connected and fixed by bolt with the mount pad on the locomotive.
Described adjust bar 2 is by in 2 supporting steel pipes 12 of copper sheathing 13 kinematic supports on adjustment seat 3, and copper sheathing 13 is connected with supporting steel pipe 12 by bolt 15, and adjust bar 2 is provided with scale.Be equipped with lubricating cup 14 on the described supporting steel pipe 12, lubricating cup 14 end openings contact with adjust bar 2.Adjust bar 2 on the vertical two ends of the assembled technological diesel engine adjustment seat 3 is used for the adapter shaft that simulation connects diesel engine two ends change speed gear box, the height of adjustment seat 3 can be adjusted by lifting mechanism 4, make adjust bar 2 and change speed gear box butt flange contour by adjustment, adjust bar 2 flexibly connects scalable with adjustment seat 3, the scale that is provided with by adjust bar 2 determines that further technology diesel engine both sides start relevant positions such as change speed gear box and static-pressure gearbox again.The lubricating cup 14 that wears on the supporting steel pipe 12 contains lubricating oil, and lubricating cup 14 end openings contact with adjust bar 2 lubricating oil is coated in copper sheathing 13 and adjust bar 2 contacts site, lubricate.
Described adjustment seat 3 is provided with level indicator 11, and the level indicator 11 at two ends is diagonal line to be arranged, but base 5 is provided with the adjusting bolt 6 of adjusting process diesel engine level.In pre-assembling process, can be the horizontal situation of level indicator 11 observation technology diesel engines that diagonal line is arranged by two ends, adjustment seat 3 plane, pass through the adjusting bolt 6 of setting on the technology diesel engine base 5 again, the level of adjusting process diesel engine.Base 5 sides are provided with the steel ruler 10 of band scale, during along technology diesel engine longitudinal 2 observation and pilot pin 1 position side by side, steel ruler 10 passes through hand screw 17 and is connected with base 5.Under the situation that guarantees technology diesel engine level, between technology diesel engine base 5 and the locomotive mount pad gap may appear.When gapped between base 5 and the locomotive mount pad, measure diff-H between steel ruler 10 and the pilot pin 1 by scale, be diesel engine base and locomotive mount pad gap length numerical value, fill up the gap by the pad that installs respective thickness additional and guarantee to install firmly.
Described underframe 9 is truss structure, through processing, and good looking appearance, rigidity is strong, and is not yielding; Adjustment seat 3 and base 5 are detachable, convenient for maintaining and adjustment.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a diesel engine of locomotive is assembled the assembled technological diesel engine in advance, it is characterized in that: comprise underframe (9), base (5), lifting mechanism (4), travel mechanism (7), adjustment seat (3), adjust bar (2), positioning seat (8) and pilot pin (1), wherein base (5) is arranged on technology diesel engine both lateral sides, is connected on the underframe (9) by travel mechanism (7); Base (5) side is provided with the steel ruler (10) of band scale, during along technology diesel engine longitudinal 2 observation and pilot pin (1) position side by side, steel ruler (10) passes through hand screw (17) and is connected with base (5); Adjustment seat (3) is arranged on the vertical two ends of technology diesel engine, and adjustment seat (3) is provided with level indicator (11), and the level indicator at two ends (11) is diagonal line and arranges; Adjustment seat (3) is provided with adjust bar (2), adjust bar (2) but longitudinal extension, adjustment seat (3) is connected on the base (5) by lifting mechanism (4); Positioning seat (8) one has 4,2 adjustment seat (3) belows that are separately fixed at two ends wherein, and other 2 are separately positioned in the middle of the technology diesel engine both lateral sides, are connected on the underframe (9) by travel mechanism (7); Positioning seat (8) is provided with movably pilot pin (1).
2. diesel engine of locomotive as claimed in claim 1 is assembled the assembled technological diesel engine in advance, it is characterized in that: described base (5) but be provided with the adjusting bolt (6) of adjusting process diesel engine level.
3. diesel engine of locomotive as claimed in claim 1 is assembled the assembled technological diesel engine in advance, it is characterized in that: described lifting mechanism (4) and travel mechanism (7) flexibly connect by positioning runner and underframe (9) and realize lifting and movement.
4. diesel engine of locomotive as claimed in claim 1 is assembled the assembled technological diesel engine in advance, it is characterized in that: described pilot pin (1) flexibly connects by T slot (16) and positioning seat (8).
5. diesel engine of locomotive as claimed in claim 1 is assembled the assembled technological diesel engine in advance, it is characterized in that: described adjust bar (2) is provided with scale.
6. diesel engine of locomotive as claimed in claim 1 is assembled the assembled technological diesel engine in advance, it is characterized in that: described adjust bar (2) is by in 2 supporting steel pipes (12) of copper sheathing (13) kinematic support on adjustment seat (3), and copper sheathing (13) is connected with supporting steel pipe (12) by bolt (15).
7. diesel engine of locomotive as claimed in claim 6 is assembled the assembled technological diesel engine in advance, it is characterized in that: be equipped with lubricating cup (14) on the described supporting steel pipe (12), lubricating cup (14) end opening contacts with adjust bar (2).
8. assemble the assembled technological diesel engine in advance as the described diesel engine of locomotive of arbitrary claim in the claim 1 to 7, it is characterized in that: described underframe (9) is truss structure, and adjustment seat (3) and base (5) are detachable.
CN 201110364846 2011-11-17 2011-11-17 Combined technological diesel for pre-assembly of locomotive diesel Active CN102501918B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110364846 CN102501918B (en) 2011-11-17 2011-11-17 Combined technological diesel for pre-assembly of locomotive diesel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110364846 CN102501918B (en) 2011-11-17 2011-11-17 Combined technological diesel for pre-assembly of locomotive diesel

Publications (2)

Publication Number Publication Date
CN102501918A CN102501918A (en) 2012-06-20
CN102501918B true CN102501918B (en) 2013-08-28

Family

ID=46214074

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110364846 Active CN102501918B (en) 2011-11-17 2011-11-17 Combined technological diesel for pre-assembly of locomotive diesel

Country Status (1)

Country Link
CN (1) CN102501918B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2157900Y (en) * 1993-05-14 1994-03-02 北京铁路分局北京内燃机务段 Comprehensive overhaul stand for diesel engine
US6024063A (en) * 1999-06-14 2000-02-15 Ford Global Technologies, Inc. Camshaft lash adjustment process and system for internal combustion engine
CN201250004Y (en) * 2008-06-20 2009-06-03 南车戚墅堰机车有限公司 General assembly line of diesel engine
CN101863267A (en) * 2009-04-14 2010-10-20 南车襄樊机车有限公司 Diesel locomotive starting gear box antiregulation device
CN101882835A (en) * 2009-05-08 2010-11-10 南车襄樊机车有限公司 Dedicated positioning device for diesel locomotive excitation start generator
CN202378993U (en) * 2011-11-17 2012-08-15 南车成都机车车辆有限公司 Combined process diesel engine for pre-assembling locomotive diesel engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2157900Y (en) * 1993-05-14 1994-03-02 北京铁路分局北京内燃机务段 Comprehensive overhaul stand for diesel engine
US6024063A (en) * 1999-06-14 2000-02-15 Ford Global Technologies, Inc. Camshaft lash adjustment process and system for internal combustion engine
CN201250004Y (en) * 2008-06-20 2009-06-03 南车戚墅堰机车有限公司 General assembly line of diesel engine
CN101863267A (en) * 2009-04-14 2010-10-20 南车襄樊机车有限公司 Diesel locomotive starting gear box antiregulation device
CN101882835A (en) * 2009-05-08 2010-11-10 南车襄樊机车有限公司 Dedicated positioning device for diesel locomotive excitation start generator
CN202378993U (en) * 2011-11-17 2012-08-15 南车成都机车车辆有限公司 Combined process diesel engine for pre-assembling locomotive diesel engine

Also Published As

Publication number Publication date
CN102501918A (en) 2012-06-20

Similar Documents

Publication Publication Date Title
CN102179476B (en) Core assembly mould
CN103335200B (en) A kind of oiling special plane produced for sliding rail of automobile seat
CN202378993U (en) Combined process diesel engine for pre-assembling locomotive diesel engine
CN201318994Y (en) Turboshaft or turbo-prop engine test bed bench capable of be rapidly arranged and adjusting direction
CN108331907B (en) Lubricating system oil circuit structure of vertical high-speed box
CN202780267U (en) Model switching sliding table for multi-vehicle-model mixed-line production
CN102607681B (en) Intelligent whole vehicle weighing platform
CN201787015U (en) Linear transmission module with lubricating oil circuit
CN103604356B (en) The bent axle axiality detection device of high-power multi-cylinder internal combustion engine and characterization processes
CN102501918B (en) Combined technological diesel for pre-assembly of locomotive diesel
CN102658564B (en) Cutting bed
CN104759864A (en) Press fitting device of vehicle auxiliary frame bushing
CN202177362U (en) Special apparatus for measuring inner fairway symmetry of spherical cage outer wheel
CN209811680U (en) Device capable of adjusting shaft spacing of screwing machine
CN108356232A (en) A kind of general lower core cubing
CN103353482A (en) Single drive structure and design method for scanning axis of ultrasonic scanning microscope
CN206690132U (en) A kind of high-precision rear slider device of the long telescopic cantilever of binodal
CN213918157U (en) Preassembling tool for auxiliary engine of internal combustion locomotive
CN208185231U (en) The high oil pressure fluid bearing device of generating equipment elongated shaft Vehicle Processing
CN114559408A (en) Preassembling tool for auxiliary engine of internal combustion locomotive
CN101571367B (en) Wheelbase vernier caliper
CN203460260U (en) Trimmer for processing U-shaped air inlet pipe of automobile engine
CN202455208U (en) Fixing tool for measurement and control of new energy motor
CN110470470A (en) A kind of barreled tooth flank shaft coupling Dynamic and Multi dimensional test device
CN102837190A (en) Integral lathe body structure of headstock, lathe body, base and front support and rear support of lead screw

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
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Chengdu second bridge two North Road 610051 Sichuan province No. 31

Patentee after: CRRC CHENGDU CO., LTD.

Address before: Chengdu second bridge two North Road 610051 Sichuan province No. 31

Patentee before: CSR Chengdu Co., Ltd.