CN103661424A - Vibration proof structure of internal combustion locomotive transmission mechanism - Google Patents

Vibration proof structure of internal combustion locomotive transmission mechanism Download PDF

Info

Publication number
CN103661424A
CN103661424A CN201310653416.9A CN201310653416A CN103661424A CN 103661424 A CN103661424 A CN 103661424A CN 201310653416 A CN201310653416 A CN 201310653416A CN 103661424 A CN103661424 A CN 103661424A
Authority
CN
China
Prior art keywords
mount pad
connecting panel
gusset
transmission device
actuating motor
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
Application number
CN201310653416.9A
Other languages
Chinese (zh)
Other versions
CN103661424B (en
Inventor
秦汉林
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 CN201310653416.9A priority Critical patent/CN103661424B/en
Publication of CN103661424A publication Critical patent/CN103661424A/en
Application granted granted Critical
Publication of CN103661424B publication Critical patent/CN103661424B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Arrangement Of Transmissions (AREA)

Abstract

The invention provides a vibration proof structure of an internal combustion locomotive transmission mechanism, a first connecting plate (4) is fixed between two starter gearbox mounting seats (1), one starter gearbox mounting seat (1) and an adjacent exciter mounting seat (2) are fixedly connected by a second connecting plate (5), the other gearbox mounting seat (1) and an adjacent starter motor mounting seat (3) are fixedly connected by a fourth connecting plate (7), the exciter mounting seat (2) and the starter motor mounting seat (3) are fixedly connected by a third connecting plate (6), and the first connecting plate (4), the second connecting plate (5), the third connecting plate (6) and the fourth connecting plate (7) are in fixed connection with a locomotive body bottom plate (11). The vibration proof structure greatly improves the vibration proof performance of a locomotive as a whole, solves the problem of excess vibration of the locomotive transmission mechanism in operation and maintenance processes of a locomotive, and has the advantages of simple structure, low implementation cost and the like.

Description

A kind of vibration proof structure of diesel locomotive transmission device
Technical field
The present invention relates to diesel locomotive transmission device field engineering field, especially relate to a kind of vibration proof structure of diesel locomotive transmission device.
Background technology
Existing diesel locomotive is for example all fitted with the transmission device being mainly comprised of induction exciter, actuating motor and startup change speed gear box on DF8B type locomotive conventionally, induction exciter wherein, actuating motor and startup change speed gear box are fixed on corresponding mount pad by hold-down bolt respectively, and actuating motor connects with startup change speed gear box by flexible pillar pin coupling.The shortcoming of this mounting means is, because diesel locomotive has adopted the elastic clutch of various structures form, although can improve vibration isolation and the resistance to shock of transmission device, but also make corresponding mount pad dispersion, independent simultaneously, can not form integral structure, cause locomotive transmission device installation region rigidity a little less than.In locomotive operation process or when diesel locomotive overhaul, the installation position of this locomotive transmission device often produces the excessive problem of vibration, affects normal operation or the maintenance of locomotive.
Another mounting means of diesel locomotive transmission device is to adopt Integral mounting base, be that the mount pad that starts the mount pad of change speed gear box, the mount pad of actuating motor and exciting dynamo is merged and makes an Integral mounting base, then this Integral mounting base be bolted on car body.The shortcoming of this mounting means is, Integral mounting base is more suitable for adopting when diesel locomotive is newly made, and for the diesel locomotive that drops into utilization, if be replaced by new Integral mounting base, not only implementation cost is higher, and work capacity is very large.
Summary of the invention
The technical problem to be solved in the present invention is: the problem existing for prior art, a kind of vibration proof structure of diesel locomotive transmission device is provided, strengthen the rigidity at position, locomotive transmission device place, promote the resistance to shock of transmission device, eliminate locomotive and vibrate excessive problem in utilization and maintenance process.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of vibration proof structure of diesel locomotive transmission device, at two, start between change speed gear box mount pad and be fixedly connected with the first connecting panel, one of them starts between change speed gear box mount pad and adjacent exciting dynamo mount pad and is fixedly connected with by the second connecting panel, another starts between change speed gear box mount pad and adjacent actuating motor mount pad and is fixedly connected with by the 4th connecting panel, between described exciting dynamo mount pad and actuating motor mount pad, by the 3rd connecting panel, is fixedly connected with; The first described connecting panel, the second connecting panel and the 3rd connecting panel are all fixedly connected with hull bottom plate with the 4th connecting panel.
Further, between the startup change speed gear box mount pad adjacent with exciting dynamo mount pad and exciting dynamo mount pad, be fixedly connected with the second gusset, and the second described gusset is positioned at the second connecting panel inner side; Between the startup change speed gear box mount pad adjacent with actuating motor mount pad and actuating motor mount pad, be fixedly connected with the first gusset, and the first described gusset is positioned at the 4th connecting panel inner side; Between described exciting dynamo mount pad and actuating motor mount pad, be fixedly connected with the 3rd gusset, and the 3rd gusset is positioned at the 3rd connecting panel inner side; The first described gusset, the second gusset and the 3rd gusset are all fixedly connected with hull bottom plate.
Further, the first described gusset, the 4th connecting panel, startup change speed gear box mount pad and the actuating motor mount pad adjacent with actuating motor mount pad form acute triangle structure jointly.
Further, the second described gusset, the second connecting panel, startup change speed gear box mount pad and the exciting dynamo mount pad adjacent with exciting dynamo mount pad form acute triangle structure jointly.
Further, the 3rd described gusset, the 3rd connecting panel and exciting dynamo mount pad and actuating motor mount pad form trapezium structure jointly.
Further, the first described gusset, the second gusset and the 3rd gusset are all low alloy steel plates of 45 ° of grooves of one side, and itself and hull bottom plate are welded and fixed.
Further, the thickness of the first described gusset, the second gusset and the 3rd gusset is 6-12mm.
Further, the first described connecting panel, the second connecting panel and the 3rd connecting panel and the 4th connecting panel are all low alloy steel plates of two-sided 45 ° of grooves, and itself and hull bottom plate are welded and fixed.
Further, the thickness of the first described connecting panel, the second connecting panel and the 3rd connecting panel and the 4th connecting panel is 10-20mm.
Compared with prior art, the invention has the beneficial effects as follows: by the first connecting panel, the second connecting panel and the 3rd connecting panel and the 4th connecting panel, jointly form a tower structure with startup change speed gear box mount pad, exciting dynamo mount pad, actuating motor mount pad, hull bottom plate, make to start change speed gear box mount pad, exciting dynamo mount pad, actuating motor mount pad and connect into each other as a wholely, greatly strengthened the rigidity at position, locomotive transmission device place, in addition, by the first gusset, the second gusset and the 3rd gusset and the first connecting panel, a truss structure of the common composition of the second connecting panel and the 3rd connecting panel and the 4th connecting panel, make to start change speed gear box mount pad, exciting dynamo mount pad, actuating motor mount pad and hull bottom plate have formed an integral type transmission device mount pad, be equivalent to be fixed on hull bottom plate after the block cast of transmission device mount pad, therefore, the rigidity at position, elevator car transmission device place significantly, increase the whole vibration resistance of transmission device, can also improve car body in the rigidity at this place simultaneously, making locomotive vibrate excessive problem in utilization and maintenance process is solved substantially.
Accompanying drawing explanation
Fig. 1 is the front view of the vibration proof structure of a kind of diesel locomotive transmission device of the present invention.
Fig. 2 be in Fig. 1 A-A to cutaway view.
Mark in figure: 1-starts change speed gear box mount pad, 2-exciting dynamo mount pad, 3-actuating motor mount pad, 4-the first connecting panel, 5-the second connecting panel, 6-the 3rd connecting panel, 7-the 4th connecting panel, 8-the first gusset, 9-the second gusset, 10-the 3rd gusset, 11-hull bottom plate.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The vibration proof structure of a kind of diesel locomotive transmission device as shown in Figure 1, diesel locomotive transmission device is wherein fixedly mounted on hull bottom plate 11 by starting change speed gear box mount pad 1, exciting dynamo mount pad 2 and actuating motor mount pad 3 respectively, start change speed gear box mount pad 1 and have two and be " one " font and arrange, exciting dynamo mount pad 2 is parallel with actuating motor mount pad 3 and be distributed in startup change speed gear box mount pad 1 right side.At two, start between change speed gear box mount pad 1 outermost and be welded and fixed the first connecting panel 4, between the lower-left end of the bottom righthand side of a startup change speed gear box mount pad 1 therein and adjacent exciting dynamo mount pad 2, be welded with the second connecting panel 5, between the upper right side of exciting dynamo mount pad 2 and the bottom righthand side of actuating motor mount pad 3, be welded and fixed the 3rd connecting panel 6, between the upper right side of the startup change speed gear box mount pad 1 adjacent with actuating motor mount pad 3 and the left upper end of actuating motor mount pad 3, be welded with the 4th connecting panel 7, and, the first described connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 are all welded and fixed with hull bottom plate 11.Therefore, the first connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 have formed a tower structure jointly with startup change speed gear box mount pad 1, exciting dynamo mount pad 2, actuating motor mount pad 3, hull bottom plate 11, thereby making to start change speed gear box mount pad 1, exciting dynamo mount pad 2, actuating motor mount pad 3 connects into as a whole each other, and the area that this tower structure surrounds is maximized, can greatly strengthen the rigidity at position, locomotive transmission device place like this, be conducive to improve the whole resistance to shock of locomotive transmission device.
The first above-mentioned connecting panel 4, it is 10-20mm that the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 all can adopt thickness, the low alloy steel plate of two-sided 45 ° of grooves, carbon element content in this steel plate is 0.10%~0.18%, silicon content is 0.18%~0.30%, manganese element content is 1.50%~1.90%, v element content is 0.06%~0.10%, quenching temperature in heat treatment process is 850-900 ℃, then oil cooling is processed, can make like this first connecting panel 4, the tensile strength of the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 is more than 80 kilograms of every square millimeters, and there is good welding performance and rigidity.So both welding quality can be guaranteed, and the welding rigidity at position, locomotive transmission device place afterwards can be guaranteed.Due to the height of the first connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 all with corresponding mount pad matched, after it is welded and fixed with startup change speed gear box mount pad 1, exciting dynamo mount pad 2, actuating motor mount pad 3 and hull bottom plate 11 employing melting welding modes respectively, form a tower structure mount pad, as shown in Figure 1.The area of considering diesel locomotive transmission device region is larger, the span of corresponding connecting panel is also larger, in order to guarantee that the first connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 are welded and fixed the rigidity of rear locomotive transmission device region, can adopt in junction continuous fillet welding to strengthen fixing, as shown in Figure 2.After adopting said structure, the rigidity of locomotive transmission device region can improve more than 2 times, has increased the whole vibration resistance of transmission device, efficiently solves locomotive and vibrate excessive problem in utilization and maintenance process.
In order to improve further the whole vibration resistance of transmission device, as shown in Figure 1, between the upper right side of the startup change speed gear box mount pad 1 adjacent with exciting dynamo mount pad 2 and the left upper end of exciting dynamo mount pad 2, be welded and fixed the second gusset 9, between the bottom righthand side of the startup change speed gear box mount pad 1 adjacent with actuating motor mount pad 3 and the lower-left end of actuating motor mount pad 3, be welded and fixed the first gusset 8, between the left upper end of exciting dynamo mount pad 2 and the lower-left end of actuating motor mount pad 3, be welded and fixed the 3rd gusset 10; Described the first gusset 8, the second gusset 9 and the 3rd gusset 10 are all welded and fixed with hull bottom plate 11.Therefore, the first gusset 8, the 4th connecting panel 7, startup change speed gear box mount pad 1 and the actuating motor mount pad 3 adjacent with actuating motor mount pad 3 have formed an acute triangle structure jointly, the second gusset 9, the second connecting panel 5, startup change speed gear box mount pad 1 and the exciting dynamo mount pad 2 adjacent with exciting dynamo mount pad 2 have also formed an acute triangle structure jointly, in addition, the 3rd gusset 10, the 3rd connecting panel 6 and exciting dynamo mount pad 2 and actuating motor mount pad 3 have similarly formed a trapezium structure jointly.Due to the height of the first gusset 8, the second gusset 9 and the 3rd gusset 10 all with corresponding mount pad matched, and be all welded and fixed with hull bottom plate 11.So just make the first gusset 8, the second gusset 9 and the 3rd gusset 10 and the first connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 jointly form a truss structure, thereby make to start change speed gear box mount pad 1, exciting dynamo mount pad 2, actuating motor mount pad 3 and hull bottom plate 11 and formed an integral type transmission device mount pad, be equivalent to be fixed on hull bottom plate 11 after the block cast of locomotive transmission device mount pad.Adopt the further rigidity at position, elevator car transmission device place of such structure, thereby improve the whole resistance to shock of locomotive transmission device.
The first above-mentioned gusset 8, it is 6-12mm that the second gusset 9 and the 3rd gusset 10 all can adopt thickness, the low alloy steel plate of 45 ° of grooves of one side, carbon element content in this steel plate is 0.10%~0.18%, silicon content is 0.18%~0.30%, manganese element content is 1.50%~1.90%, v element content is 0.06%~0.10%, quenching temperature in heat treatment process is 850-900 ℃, then oil cooling is processed, can make like this first gusset 8, the tensile strength of the second gusset 9 and the 3rd gusset 10 is more than 80 kilograms of every square millimeters, and there is good welding performance and rigidity.When it adopts melting welding modes to be welded and fixed with startup change speed gear box mount pad 1, exciting dynamo mount pad 2, actuating motor mount pad 3 and hull bottom plate 11 respectively, both welding quality can be guaranteed, and the welding rigidity at position, locomotive transmission device place afterwards can be further improved.If the span of the first gusset 8, the second gusset 9 or the 3rd gusset 10 that adopt is larger, it is also conceivable that and in junction, adopt continuous fillet welding to fix strengthening, as shown in Figure 2.After adopting said structure, the rigidity of locomotive transmission device region can improve more than 1 times on the basis of said frame formula structure again, thereby be conducive to further solve locomotive, in utilization and maintenance process, vibrates excessive problem.
In sum, between the first connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 in the present invention, form tower structure, the first gusset 8, the second gusset 9 and the 3rd gusset 10 and the first connecting panel 4, the second connecting panel 5 and the 3rd connecting panel 6 and the 4th connecting panel 7 form truss structure.This unitized construction makes to start change speed gear box mount pad 1, exciting dynamo mount pad 2, actuating motor mount pad 3 and hull bottom plate 11 and has formed an integral type transmission device mount pad, greatly promoted the rigidity at position, locomotive transmission device place, and then improved the whole resistance to shock of locomotive transmission device, can make locomotive in utilization and maintenance process, the vibration problems of too of the exciting dynamo of locomotive, change speed gear box, actuating motor is able to basic solution, and total is simple, implementation cost is lower.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, it should be pointed out that all any modifications of doing within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1. the vibration proof structure of a diesel locomotive transmission device, it is characterized in that: at two, start between change speed gear box mount pad (1) and be fixedly connected with the first connecting panel (4), one of them starts between change speed gear box mount pad (1) and adjacent exciting dynamo mount pad (2) and is fixedly connected with by the second connecting panel (5), another starts between change speed gear box mount pad (1) and adjacent actuating motor mount pad (3) and is fixedly connected with by the 4th connecting panel (7), between described exciting dynamo mount pad (2) and actuating motor mount pad (3), by the 3rd connecting panel (6), is fixedly connected with; Described the first connecting panel (4), the second connecting panel (5) and the 3rd connecting panel (6) are all fixedly connected with hull bottom plate (11) with the 4th connecting panel (7).
2. the vibration proof structure of a kind of diesel locomotive transmission device according to claim 1, it is characterized in that: between the startup change speed gear box mount pad (1) adjacent with exciting dynamo mount pad (2) and exciting dynamo mount pad (2), be fixedly connected with the second gusset (9), and described the second gusset (9) is positioned at the second connecting panel (5) inner side; Between the startup change speed gear box mount pad (1) adjacent with actuating motor mount pad (3) and actuating motor mount pad (3), be fixedly connected with the first gusset (8), and described the first gusset (8) is positioned at the 4th connecting panel (7) inner side; Between described exciting dynamo mount pad (2) and actuating motor mount pad (3), be fixedly connected with the 3rd gusset (10), and the 3rd gusset (10) is positioned at the 3rd connecting panel (6) inner side; Described the first gusset (8), the second gusset (9) and the 3rd gusset (10) are all fixedly connected with hull bottom plate (11).
3. the vibration proof structure of a kind of diesel locomotive transmission device according to claim 2, is characterized in that: described the first gusset (8), the 4th connecting panel (7), startup change speed gear box mount pad (1) and the actuating motor mount pad (3) adjacent with actuating motor mount pad (3) form acute triangle structure jointly.
4. the vibration proof structure of a kind of diesel locomotive transmission device according to claim 2, is characterized in that: described the second gusset (9), the second connecting panel (5), startup change speed gear box mount pad (1) and the exciting dynamo mount pad (2) adjacent with exciting dynamo mount pad (2) form acute triangle structure jointly.
5. the vibration proof structure of a kind of diesel locomotive transmission device according to claim 2, is characterized in that: the 3rd described gusset (10), the 3rd connecting panel (6) and exciting dynamo mount pad (2) and actuating motor mount pad (3) form trapezium structure jointly.
6. according to the vibration proof structure of a kind of diesel locomotive transmission device described in claim 2-5 any one, it is characterized in that: described the first gusset (8), the second gusset (9) and the 3rd gusset (10) are all low alloy steel plates of 45 ° of grooves of one side, and itself and hull bottom plate (11) are welded and fixed.
7. the vibration proof structure of a kind of diesel locomotive transmission device according to claim 6, is characterized in that: the thickness of described the first gusset (8), the second gusset (9) and the 3rd gusset (10) is 6-12mm.
8. according to the vibration proof structure of a kind of diesel locomotive transmission device described in claim 1-5 any one, it is characterized in that: described the first connecting panel (4), the second connecting panel (5) and the 3rd connecting panel (6) and the 4th connecting panel (7) are all low alloy steel plates of two-sided 45 ° of grooves, and itself and hull bottom plate (11) are welded and fixed.
9. the vibration proof structure of a kind of diesel locomotive transmission device according to claim 8, is characterized in that: the thickness of described the first connecting panel (4), the second connecting panel (5) and the 3rd connecting panel (6) and the 4th connecting panel (7) is 10-20mm.
CN201310653416.9A 2013-12-06 2013-12-06 A kind of vibration proof structure of internal combustion locomotive transmission mechanism Active CN103661424B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310653416.9A CN103661424B (en) 2013-12-06 2013-12-06 A kind of vibration proof structure of internal combustion locomotive transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310653416.9A CN103661424B (en) 2013-12-06 2013-12-06 A kind of vibration proof structure of internal combustion locomotive transmission mechanism

Publications (2)

Publication Number Publication Date
CN103661424A true CN103661424A (en) 2014-03-26
CN103661424B CN103661424B (en) 2016-03-30

Family

ID=50300520

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310653416.9A Active CN103661424B (en) 2013-12-06 2013-12-06 A kind of vibration proof structure of internal combustion locomotive transmission mechanism

Country Status (1)

Country Link
CN (1) CN103661424B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591826A (en) * 1923-08-13 1926-07-06 Westinghouse Gear & Dynamomete Transmission gearing
JPS58153117U (en) * 1982-04-09 1983-10-13 日産自動車株式会社 Transmission housing structure
JPS5959560U (en) * 1982-10-15 1984-04-18 三菱農機株式会社 Belt cover device for mobile agricultural machinery
JPH0333262U (en) * 1989-08-09 1991-04-02
CN203580943U (en) * 2013-12-06 2014-05-07 南车成都机车车辆有限公司 Shake resistant structure of drive mechanism of internal combustion locomotive

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591826A (en) * 1923-08-13 1926-07-06 Westinghouse Gear & Dynamomete Transmission gearing
JPS58153117U (en) * 1982-04-09 1983-10-13 日産自動車株式会社 Transmission housing structure
JPS5959560U (en) * 1982-10-15 1984-04-18 三菱農機株式会社 Belt cover device for mobile agricultural machinery
JPH0333262U (en) * 1989-08-09 1991-04-02
CN203580943U (en) * 2013-12-06 2014-05-07 南车成都机车车辆有限公司 Shake resistant structure of drive mechanism of internal combustion locomotive

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
秦卫华等: "发电机组用柴油机高效可靠的安装结构", 《拖拉机与农用运输机》, no. 4, 31 August 2005 (2005-08-31), pages 70 - 71 *
谢建平等: "船用高速大功率柴油发电机组箱装体研制", 《噪声与振动控制》, no. 5, 31 October 2007 (2007-10-31), pages 119 - 124 *

Also Published As

Publication number Publication date
CN103661424B (en) 2016-03-30

Similar Documents

Publication Publication Date Title
CN203974511U (en) For installation frame and the electric drive power actuated vehicle of electric drive power actuated vehicle
CN204226523U (en) A kind of steel plate spring assembly of MPV car and automobile
CN203460681U (en) Engine suspension assembly, corresponding automotive power assembly and automobile
CN111365570A (en) Split type hydraulic drive power package diesel engine integrated system installation frame
CN203580943U (en) Shake resistant structure of drive mechanism of internal combustion locomotive
CN200996431Y (en) Vertical wind-cooling diesel engine of double-axle balancing with single cylinder
CN103661424A (en) Vibration proof structure of internal combustion locomotive transmission mechanism
CN201802468U (en) Reinforcing bracket assembly for automobile engine catalyst
CN112776581A (en) New energy automobile sub vehicle frame suspension bush assembly structure
CN208749439U (en) The fixed device of the post processor of engine assembly of car exhaust system
CN201882647U (en) Traction device for loading machine
CN205768653U (en) Auxiliary supporting device for gearbox
CN202690199U (en) Independent cooling fan driving system for engine of hydraulic excavator
CN216232227U (en) Novel bracket for supporting of diesel locomotive
CN203230785U (en) Pump damping device for engine hydraulic pump
CN200999655Y (en) Dual spindle balance type V-type double cylinder wind cooling diesel engine
CN200995683Y (en) Large-power diesel locomotive
CN202866995U (en) Turbo-supercharger support
CN203839439U (en) Electric automobile and battery pack thereof
CN209938316U (en) Drive shaft fixing support structure
CN203319474U (en) Lift
CN202727992U (en) Instrument panel cross beam end support
CN201576975U (en) Common base structure of generator set
CN210191163U (en) Automatic derailleur stopper outer support
CN202165136U (en) Heat radiator of machine oil

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 610057 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31

Applicant after: CRRC CHENGDU CO., LTD.

Address before: 610057 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31

Applicant before: CSR Chengdu Co., Ltd.

COR Change of bibliographic data
C14 Grant of patent or utility model
GR01 Patent grant