CN108331904A - Gear-box suitable for rail traffic vehicles - Google Patents
Gear-box suitable for rail traffic vehicles Download PDFInfo
- Publication number
- CN108331904A CN108331904A CN201810360925.5A CN201810360925A CN108331904A CN 108331904 A CN108331904 A CN 108331904A CN 201810360925 A CN201810360925 A CN 201810360925A CN 108331904 A CN108331904 A CN 108331904A
- Authority
- CN
- China
- Prior art keywords
- gear
- input
- shaft coupling
- rail traffic
- output shaft
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 75
- 238000010168 coupling process Methods 0.000 claims abstract description 75
- 238000005859 coupling reaction Methods 0.000 claims abstract description 75
- 239000000446 fuel Substances 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 29
- 239000010687 lubricating oil Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/038—Gearboxes for accommodating bevel gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of gear-boxes suitable for rail traffic vehicles, including：Tank shell, input shaft, output shaft, input shaft coupling, output shaft coupling, input bushing and input shaft bearing；Tank shell includes：Babinet and case lid；Case lid is bolted to babinet；Gear-box is single-stage driving gear-box；Input shaft is formed with or is equipped with input bevel gear；Output shaft is formed with or is equipped with output bevel gear；Pivot center of the pivot center of input shaft perpendicular to output shaft；Input shaft bearing is socketed in the periphery of input shaft；Input bushing is socketed in the periphery of input shaft bearing；Input bushing is installed to tank shell；Input shaft coupling is connected to one end of input shaft；Output shaft coupling is connected to one end of output shaft.Gear-box disclosed by the invention suitable for rail traffic vehicles can install larger motor, and output power is high.
Description
Technical field
The present invention relates to a kind of gear-boxes suitable for rail traffic vehicles.
Background technology
With the continuous social and economic development, the urban rail transit vehicles of low-carbon environment-friendly are increasingly by the blueness of people
It looks at, the type of rail traffic gear box is also on the increase, and especially tramcar gear-box will have prodigious development in future
Foreground.Currently, tramcar vehicle is complicated, therefore there is an urgent need to a kind of compact-sized tramcar gear-boxes.It is existing
The gear-box of some rail traffic vehicles is difficult to realize larger power.
Invention content
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of gears suitable for rail traffic vehicles
Case.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of gear-box suitable for rail traffic vehicles, including：Tank shell, input shaft, output shaft, input shaft coupling, output
Shaft coupling, input bushing and input shaft bearing；Tank shell includes：Babinet and case lid；Case lid is bolted to babinet；Gear-box
For single-stage driving gear-box；Input shaft is formed with or is equipped with input bevel gear；Output shaft is formed with or is equipped with output umbrella tooth
Wheel；Input bevel gear is engaged with output bevel gear；Pivot center of the pivot center of input shaft perpendicular to output shaft；Input shaft
The pivot center of pivot center and output shaft is not in the same plane；Input shaft bearing is socketed in the periphery of input shaft；Input bushing
It is socketed in the periphery of input shaft bearing；Input bushing is installed to tank shell；Input shaft coupling is connected to one end of input shaft；Output connection
Axis device is connected to one end of output shaft.
Further, the distance between pivot center of the pivot center of input shaft and output shaft is more than or equal to 35mm and small
In equal to 45mm.
Further, input shaft is equipped with central through hole；Central through hole is connected to the inside of tank shell and inputs the interior of shaft coupling
Portion；Gear-box suitable for rail traffic vehicles further includes shaft coupling disc；Shaft coupling disc is installed to output shaft in
The corresponding position of heart through-hole.
Further, central through hole is less than one far from shaft coupling disc close to the aperture of one end of shaft coupling disc
The aperture at end；Central through hole is equipped with chamfering close to one end of shaft coupling disc.
Further, further include oil baffle suitable for the gear-box of rail traffic vehicles；Oil baffle is fixed to tank shell；It is defeated
Enter shaft coupling and passes through oil baffle.
Further, tank shell is formed with the output box body hole passed through for output shaft；It exports box body hole and is equipped with chamfering；Chamfering
O-ring seal is inside installed.
Further, input shaft coupling is gear coupling；It inputs shaft coupling and passes through involute spline and input axis connection.
Further, output shaft coupling is rubber torsion bar type shaft coupling；Export shaft coupling one end by end-tooth with it is defeated
Go out axis connection.
Further, output shaft is the hollow shaft with through-hole；The axle of rail traffic vehicles passes through the through-hole of output shaft
And it is connected to one end of output shaft coupling.
Further, further include bearing disc suitable for the gear-box of rail traffic vehicles；Bearing disc is fixed to
Output shaft；It inputs bushing and is equipped with input fuel feed hole and input oil return hole.
The invention has the beneficial effects that：
Gear-box suitable for rail traffic vehicles can be suitable for installing larger motor, and output power is high.And it can be real
Now preferable lubricant effect.
Input shaft coupling is lubricated by the lubricating oil in tank shell, lubricant effect is good, saves input shaft coupling
Maintenance cost.
Description of the drawings
Fig. 1 is a kind of schematic diagram of the gear-box suitable for rail traffic vehicles；
Fig. 2 is the sectional view of the gear-box suitable for rail traffic vehicles in Fig. 1；
Fig. 3 is the schematic diagram of the input bushing of the gear-box suitable for rail traffic vehicles in Fig. 1；
Fig. 4 is the scheme of installation of the gear-box suitable for rail traffic vehicles in Fig. 1.
Gear-box 100, tank shell 101, input shaft 102, output shaft 103 export shaft coupling 104, input bushing 105, defeated
Enter bearing 106, babinet 107, case lid 108, input bevel gear 102a, output bevel gear 103a, central through hole 109, shaft coupling is got rid of
Food tray 110, oil baffle 111 export box body hole 112, and O-ring seal inputs oil return hole 113, through-hole 114, bearing disc
115, shaft coupling 116 is inputted, fuel feed hole 117, erecting by overhang 200 are inputted.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figures 1 to 4, a kind of gear-box 100 suitable for rail traffic vehicles, including：Tank shell 101, input
Axis 102, output shaft 103, input shaft coupling 116, output shaft coupling 104, input bushing 105 and input shaft bearing 106；Tank shell
101 include：Babinet 107 and case lid 108；Case lid 108 is bolted to babinet 107；Gear-box 100 is single-stage driving gear
Case 100；Input shaft 102 is formed with or is equipped with input bevel gear 102a；Output shaft 103 is formed with or is equipped with output bevel gear
103a；Input bevel gear 102a is engaged with output bevel gear 103a；The pivot center of input shaft 102 is perpendicular to output shaft 103
Pivot center；The pivot center of input shaft 102 and the pivot center of output shaft 103 are not in the same plane；106 sets of input shaft bearing
It is connected on the periphery of input shaft 102；Input bushing 105 is socketed in the periphery of input shaft bearing 106；The installation of bushing 105 is inputted to box shell
Body 101；Input shaft coupling 116 is connected to one end of input shaft 102；Output shaft coupling 104 is connected to one end of output shaft 103.
As a kind of specific embodiment, Double curve screw umbrella subject to input bevel gear 102a and output bevel gear 103a
Gear.Specifically, output shaft 103 is equipped with output bevel gear 103a.Output bevel gear 103a interference is installed to output shaft
103。
As a preferred embodiment, between the pivot center and the pivot center of output shaft 103 of input shaft 102
Distance is more than or equal to 35mm and is less than or equal to 45mm.As a kind of specific embodiment, the pivot center of input shaft 102 and defeated
The high 40mm of pivot center of shaft 103.Big for the lower part installation space of motor in this way, motor is easier for installation, and this
The installation of big motor may be implemented in kind structure.
As a preferred embodiment, input shaft 102 is equipped with central through hole 109；Central through hole 109 is connected to tank shell
The inside of 101 inside and input shaft coupling 116；Gear-box 100 suitable for rail traffic vehicles further includes that shaft coupling gets rid of oil
Disk 110；Shaft coupling disc 110 is installed to the position corresponding with central through hole 109 of output shaft 103.
As a kind of specific embodiment, 110 interference of shaft coupling disc is installed to output shaft 103.
As a kind of specific embodiment, input shaft coupling 116 is fixed to input shaft 102 by clamp nut.Into one
For step, clamp nut is slotted nut.
Gear-box 100 and motor are fastened by bolts into an entirety.Gear-box 100 and motor are equipped with seam allowance positioning knot
Structure.Ensure the concentricity of motor shaft and input shaft 102 when installation.O-shaped sealing is set in the mating surface of gear-box 100 and motor
Circle, plays sealing function.On the lubricating oil splash to motor for preventing input shaft coupling 116.
Input shaft coupling 116 and input bevel gear 102a are located in the seal chamber of tank shell 101, avoid the wind of leakage
Danger.
Input shaft coupling 116 be made of metal material, be arranged in seal chamber, by the lubricating oil in tank shell 101 into
Row lubrication, lubricant effect is good, saves the maintenance cost of input shaft coupling 116.
Shaft coupling disc 110 is mounted on output shaft 103, and when train operation, shaft coupling disc 110 gets rid of lubricating oil
Enter central through hole 109, the effective lubricating efficiency for improving input shaft coupling 116.
As a preferred embodiment, central through hole 109 is less than close to the aperture of one end of shaft coupling disc 110
The aperture of one end far from shaft coupling disc 110；Central through hole 109 is equipped with chamfering close to one end of shaft coupling disc 110.
The chamfering facilitates lubricating oil to enter in central through hole 109.And the aperture of the side is smaller, and the one-way flow of lubricating oil may be implemented
Go out, the oil lubrication in central through hole 109 inputs shaft coupling 116, and the lubricating oil for having inputted input shaft coupling 116 passes through oil return
Hole returns to the bottom of box.
As a preferred embodiment, the gear-box 100 suitable for rail traffic vehicles further includes oil baffle 111；
Oil baffle 111 is fixed to tank shell 101；It inputs shaft coupling 116 and passes through oil baffle 111.
Oil filler point and drain oil are set on tank shell 101.Oil filler point and drain oil are arranged at the bottom of tank shell 101
Portion, easy to operate and maintenance.
As a preferred embodiment, tank shell 101 is formed with the output box body hole 112 passed through for output shaft 103；
It exports box body hole 112 and is equipped with chamfering；O-ring seal is installed in chamfering.
As a preferred embodiment, input shaft coupling 116 is gear coupling；Shaft coupling 116 is inputted by gradually
The spline that bursts at the seams is connect with input shaft 102.
As a preferred embodiment, output shaft coupling 104 is rubber torsion bar type shaft coupling；Export shaft coupling 104
One end connect with output shaft 103 by end-tooth.
As a kind of specific embodiment, one end of output shaft coupling 104 is formed with end-tooth.The end of output shaft 103
Face is likewise formed with end-tooth.It is fixed by bolt radial-axial after two end-tooth cooperations.Two end-tooth cooperations are real
Now it is driven.
As a preferred embodiment, output shaft 103 is the hollow shaft with through-hole 114；Rail traffic vehicles
Axle passes through the through-hole 114 of output shaft 103 and is connected to one end of output shaft coupling 104.The other side for exporting shaft coupling 104 is logical
Interference connection coordinates with axle.
As a preferred embodiment, the gear-box 100 suitable for rail traffic vehicles further includes bearing disc
115；Bearing disc 115 is fixed to output shaft 103；It inputs bushing 105 and is equipped with input fuel feed hole 117 and input oil return hole 113.
Input shaft bearing 106 is lubricated by inputting the input fuel feed hole 117 on bushing 105 and inputting oil return hole 113.
Specifically, input oil return hole 113 is vertically downward so that lubricating oil falls back to rapidly the bottom of tank shell 101.As a kind of tool
The embodiment of body, input shaft bearing 106 include 4 ball bearings and two cylinder roller bearings.Specifically, can set
Multiple input fuel feed hole 117 is set to be lubricated.As it will be understood by those skilled in the art that input shaft bearing 106 can also be list
A bearing or multiple bearings.Can be multiple bearings that identical multiple bearings can also be different.Kinds of bearings is not limited to
4 ball bearings or cylinder roller bearing.
Tank shell 101 is formed with output fuel feed hole and output oil return hole.Oil return hole is exported to connect with the bottom of box.Tank shell
101 are equipped with oil baffle.Bearing disc is located at the underface of oil baffle.Tank shell 101 is formed with input oil trap.When train is transported
When row, there will be sufficient lubricating oil to be thrown on oil baffle, lubricating oil is flowed to by oil baffle in input oil trap, inputs oil trap
Interior lubricating oil flows to input oil trap by drainage trough.The setting of bearing disc substantially increases the lubrication effect of gear-box
Rate.
As a kind of specific embodiment, 115 interference of bearing disc is installed to output shaft 103.
As a kind of specific embodiment, sealed using labyrinth structure between output shaft 103 and tank shell 101.
Gear-box 100 and motor are mounted on by erecting by overhang 200 on bogie after being assembled into an entirety.Erecting by overhang
200 be the sub-assembly of metal and rubber, has the function of anti-vibrating and impact during train operation.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of gear-box suitable for rail traffic vehicles, which is characterized in that including：It is tank shell, input shaft, output shaft, defeated
Enter shaft coupling, output shaft coupling, input bushing and input shaft bearing；The tank shell includes：Babinet and case lid；The case lid passes through
Bolt is fixed to the babinet；The gear-box is single-stage driving gear-box；The input shaft is formed with or is equipped with input umbrella
Gear；The output shaft is formed with or is equipped with output bevel gear；The input bevel gear is engaged with the output bevel gear；Institute
State pivot center of the pivot center perpendicular to the output shaft of input shaft；The pivot center of the input shaft and the output shaft
Pivot center not in the same plane；The input shaft bearing is socketed in the periphery of the input shaft；The input bushing socket
In the periphery of the input shaft bearing；The input bushing is installed to the tank shell；The input shaft coupling is connected to described defeated
Enter one end of axis；The output shaft coupling is connected to one end of the output shaft.
2. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The distance between pivot center of the pivot center of the input shaft and the output shaft be more than or equal to 35mm and less than etc.
In 45mm.
3. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The input shaft is equipped with central through hole；The central through hole is connected to the inside of the tank shell and the input shaft coupling
It is internal；The gear-box suitable for rail traffic vehicles further includes shaft coupling disc；The shaft coupling disc install to
Output shaft position corresponding with the central through hole.
4. the gear-box according to claim 3 suitable for rail traffic vehicles, it is characterised in that：
The central through hole is less than one far from the shaft coupling disc close to the aperture of one end of the shaft coupling disc
The aperture at end；The central through hole is equipped with chamfering close to one end of the shaft coupling disc.
5. the gear-box according to claim 3 suitable for rail traffic vehicles, it is characterised in that：
The gear-box suitable for rail traffic vehicles further includes oil baffle；The oil baffle is fixed to the tank shell；Institute
It states input shaft coupling and passes through the oil baffle.
6. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The tank shell is formed with the output box body hole passed through for the output shaft；The output box body hole is equipped with chamfering；It is described
O-ring seal is installed in chamfering.
7. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The input shaft coupling is gear coupling；The input shaft coupling passes through involute spline and the input axis connection.
8. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The output shaft coupling is rubber torsion bar type shaft coupling；One end of the output shaft coupling passes through end-tooth and the output
Axis connection.
9. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The output shaft is the hollow shaft with through-hole；The axle of the rail traffic vehicles passes through the through-hole of the output shaft simultaneously
It is connected to one end of the output shaft coupling.
10. the gear-box according to claim 1 suitable for rail traffic vehicles, it is characterised in that：
The gear-box suitable for rail traffic vehicles further includes bearing disc；The bearing disc is fixed to described defeated
Shaft；The input bushing is equipped with input fuel feed hole and input oil return hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360925.5A CN108331904A (en) | 2018-04-20 | 2018-04-20 | Gear-box suitable for rail traffic vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360925.5A CN108331904A (en) | 2018-04-20 | 2018-04-20 | Gear-box suitable for rail traffic vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108331904A true CN108331904A (en) | 2018-07-27 |
Family
ID=62934224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810360925.5A Pending CN108331904A (en) | 2018-04-20 | 2018-04-20 | Gear-box suitable for rail traffic vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331904A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070193408A1 (en) * | 2006-02-07 | 2007-08-23 | Monica Gil Martinez | Gear Box Arrangement |
| CN102979886A (en) * | 2012-11-25 | 2013-03-20 | 安徽工程大学 | Right-angle gearbox |
| CN103727210A (en) * | 2013-12-31 | 2014-04-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | First-stage spiral bevel gear transmission device |
| CN105422811A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Gearbox used for rail transit vehicle |
| CN208153685U (en) * | 2018-04-20 | 2018-11-27 | 南京高精轨道交通设备有限公司 | Gear-box suitable for rail traffic vehicles |
-
2018
- 2018-04-20 CN CN201810360925.5A patent/CN108331904A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070193408A1 (en) * | 2006-02-07 | 2007-08-23 | Monica Gil Martinez | Gear Box Arrangement |
| CN102979886A (en) * | 2012-11-25 | 2013-03-20 | 安徽工程大学 | Right-angle gearbox |
| CN103727210A (en) * | 2013-12-31 | 2014-04-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | First-stage spiral bevel gear transmission device |
| CN105422811A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Gearbox used for rail transit vehicle |
| CN208153685U (en) * | 2018-04-20 | 2018-11-27 | 南京高精轨道交通设备有限公司 | Gear-box suitable for rail traffic vehicles |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190923 Address after: Nanjing City, Jiangsu province Mingrui road 211106 Jiangning economic and Technological Development Zone Applicant after: Nanjing Gao Jing rail transportation equipment Co., Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Address before: Nanjing City, Jiangsu province Mingrui road 211106 Jiangning economic and Technological Development Zone Applicant before: Nanjing Gao Jing rail transportation equipment Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200514 Address after: Nanjing City, Jiangsu province Mingrui road 211106 Jiangning economic and Technological Development Zone Applicant after: NANJING GAOJING TRACK TRAFFIC EQUIPMENT Co.,Ltd. Address before: Nanjing City, Jiangsu province Mingrui road 211106 Jiangning economic and Technological Development Zone Applicant before: NANJING GAOJING TRACK TRAFFIC EQUIPMENT Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |
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| TA01 | Transfer of patent application right |