CN202206238U - Motor and mining machine - Google Patents
Motor and mining machine Download PDFInfo
- Publication number
- CN202206238U CN202206238U CN2011203581997U CN201120358199U CN202206238U CN 202206238 U CN202206238 U CN 202206238U CN 2011203581997 U CN2011203581997 U CN 2011203581997U CN 201120358199 U CN201120358199 U CN 201120358199U CN 202206238 U CN202206238 U CN 202206238U
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- grease
- end cap
- motor
- holes
- oiling fat
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Abstract
The utility model discloses a motor which comprises an end cover, a bearing inner cover, a bearing and a sleeve, wherein a clearance defined by the bearing, the bearing inner cover and the sleeve servers as a grease cavity; the bearing inner cover is provided with an inner cover grease injecting hole; the end cover is provided with an end cover grease injecting path; the end cover grease injecting path is communicated with the grease cavity through the inner cover grease injecting hole; and an end cover grease injecting nozzle of the end cover grease injecting path is located on a side face of the end cover. The end cover grease injecting nozzle with such a structure is away from a shaft extending end, lubricating grease can be added when the motor runs normally and does not need to stop, so that the working efficiency of the motor can be increased. The utility model also discloses a mining machine. the principle of the motor of the mining machine is as same as the principle of the motor provided by the utility model.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of motor that is used for mining machinery.In addition, the utility model also relates to a kind of mining machinery that comprises above-mentioned motor.
Background technology
Along with the fast development of China's economic construction, the application of mining machinery more and more widely.Mining machinery is the machinery that directly is used for operations such as mineral mining and type selecting, comprises mine locating machinery, mining machine and benficiation machinery.
The operating environment of mining machinery is more abominable, and its operational environment is moist, and dust content is high, and possibly have damp, and the motor of mining machinery is a kind of specific type of electric machine that can adapt to adverse circumstances.
Mining machinery runs continuously in key post mostly for a long time; The motor bearings load of mining machinery is big; Heating is many; The lubricant grease of bearing can be lost its greasy property gradually under the influence of mechanical stress and chemical aging, therefore need the fresh lubricant grease of periodic replacement, otherwise will influence the useful life of bearing.
Good in order to guarantee motor bearings greasy property in running, general motor operation just should replenish or change lubricant grease in about 2000 hours, and will be according to the oil quantity supplemental lubrication grease of stipulating on the motor fatten nameplate.
A kind of operation of typical replacing bearing lubrication grease is to remove old lubricant grease earlier, and with the oil of cleaning or the oil storage fat groove of kerosene bearing cleaning and bearing (ball) cover, then with cavity between the lubricant grease filled bearing Internal and external cycle.Typical motor grease injection device often is installed in the bearing end cover edge annotating grease nipple, aims at the notes grease nipple with oiling fat device and adds the notes lubricant grease.
Annotate grease nipple and be installed in bearing outer end cap edge usually from the very near position of shaft extension end; Shaft coupling or booster engine that the shaft extension end connects usually; Its external diameter is all big than bearing outer end cap; Make after the supporting installation of motor and main frame, annotate grease nipple and be sandwiched in the slit narrow between bearing outer end cap and shaft coupling or the booster engine, and then feasible adding must shutdown operation when annotating lubricant grease.
When said motor moved, shaft coupling or booster engine high speed rotating were not shut down if add when annotating lubricant grease, cause operating personnel's personal safety accident easily.Add when annotating lubricant grease and must shut down, influence the normal operation of motor, reduce operating efficiency.
Therefore, how solving to add to motor bearings needs to shut down when annotating lubricant grease, makes operating efficiency descend, and is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of the utility model provides a kind of motor, and this motor bearings does not need when changing lubricant grease to shut down.Another purpose of the utility model provides a kind of mining machinery that comprises above-mentioned motor.
For solving the problems of the technologies described above; The utility model provides a kind of motor, comprises internal bearing cover, bearing, sleeve and end cap, and said bearing, said internal bearing cover and said sleeve form the grease chamber; Said internal bearing cover has inner cap and annotates grease holes; Said end cap has end cap oiling fat path, and said end cap oiling fat path and said grease chamber are annotated grease holes by said inner cap and be communicated with, and the end cap of said end cap oiling fat path is annotated the side that grease nipple is positioned at said end cap.
Preferably, said electric machine stand has support and annotates grease holes, and said support is annotated grease holes and linked to each other with said end cap notes grease nipple, and said support is annotated the support of grease holes and annotated the side that grease nipple is positioned at said support.
Preferably, said end cap oiling fat path comprises that first end cap is annotated grease holes, second end cap is annotated grease holes and the oiling fat pipe that is connected said first end cap notes grease holes and said second end cap notes grease holes.
Preferably, said bearing end cover has enclosing cover and annotates grease holes, and said oiling fat pipe passes said enclosing cover and annotates grease holes.
Preferably, said oiling fat pipe passes said end cap and annotates grease nipple and extend to said support and annotate in the grease holes.
Preferably, said support is annotated grease nipple and is had the notes stauffer cup, and said notes stauffer cup links to each other with said oiling fat pipe.
Preferably, said oiling fat pipe comprises oiling fat pipe joint, first straight tube, second straight tube, short bend pipe and cutting ferrule nut, and said oiling fat pipe joint connects said first straight tube and said stauffer cup; Said first straight tube and said second straight tube are communicated with by said short bend pipe, and are all fixed by said cutting ferrule nut in the junction; Said second straight tube is annotated grease holes with said second end cap and is linked to each other.
The utility model also provides a kind of mining machinery, comprises motor mount and is installed in above-mentioned each the described motor on the said motor mount.
Preferably, said mining machinery is specially mining machine, drilling machine or road heading machinery.
The motor that the utility model provided comprises end cap, internal bearing cover, bearing and sleeve; Said bearing, said internal bearing cover and said sleeve form the grease chamber; Said internal bearing cover has inner cap and annotates grease holes; Said end cap has end cap oiling fat path, and said end cap oiling fat path and said grease chamber are annotated grease holes through said inner cap and be communicated with, and the end cap of said end cap oiling fat path is annotated the side that grease nipple is positioned at said end cap.
The shaft extension end of motor bearings enclosing cover generally connects shaft coupling or belt pulley, and the notes grease nipple of the utility model motor is positioned at the side of said end cap, can not make to annotate grease nipple in the bearing end cover and the slit between shaft coupling or the belt pulley of said shaft extension end.Parts such as the shaft coupling of high speed rotating can not cause operating personnel's personal safety accident, and the motor of this structure can add the notes lubricant grease under the situation of normal operation.Add when annotating lubricant grease and do not shut down, can improve the operating efficiency of said motor.
In a kind of concrete execution mode, said electric machine stand has support and annotates grease holes, and said support is annotated grease holes and linked to each other with said end cap notes grease nipple, and said support is annotated the support of grease holes and annotated the side that grease nipple is positioned at said support.Said support is annotated grease nipple equally away from the shaft extension end, also can realize not shutting down and add the notes lubricant grease, guarantees operating personnel's personal safety.
In the another kind of concrete execution mode, said end cap oiling fat path comprises that first end cap is annotated grease holes, second end cap is annotated grease holes and the oiling fat pipe that is connected said first end cap notes grease holes and said second end cap notes grease holes.Said end cap oiling fat path is made up of first end cap notes grease holes, second end cap notes grease holes and oiling fat pipe, has increased oiling fat pipe and has made the path of end cap oiling fat path be more convenient for processing.
In the concrete execution mode of another kind, said bearing end cover has enclosing cover and annotates grease holes, and said oiling fat pipe passes said enclosing cover and annotates grease holes.Said oiling fat Guan Yiduan annotates grease holes with said first end cap and links to each other, and the other end passes said enclosing cover notes grease holes and links to each other with said second end cap notes grease holes.Consider that from the structure of said end cap the said oiling fat path of arranging like this is reliable and stable more, and can make the suitable overstriking of said end cap oiling fat path some, the speed that can accelerate to add the notes lubricant grease after the overstriking.
In the another kind of concrete execution mode, said oiling fat pipe passes said end cap notes grease nipple and extends in the said support notes grease holes.Said oiling fat pipe can be avoided said support to annotate grease holes and annotate the leakage that grease nipple is connected the cooperation place lubricant grease with said end cap.
In the concrete execution mode of another kind, said support is annotated grease nipple and is had the notes stauffer cup, and said notes stauffer cup links to each other with said oiling fat pipe.Said stauffer cup links to each other with said oiling fat Guan Yiduan and is positioned at said support and annotates the grease nipple place, makes oiling fat device and said oiling fat pipe easy to connect adding when annotating lubricant grease said notes stauffer cup.
Also have preferred embodiment a kind ofly, said oiling fat pipe comprises oiling fat pipe joint, first straight tube, second straight tube, short bend pipe and cutting ferrule nut, and said oiling fat pipe joint one end is connected with said first straight tube, and the other end connects said stauffer cup; Said first straight tube passes said support and annotates grease holes and said first end cap notes grease holes; One end of the other end of said first straight tube and said second straight tube is connected with the two ends of said short bend pipe respectively; And by said cutting ferrule nut check; Said second straight tube passes said enclosing cover notes grease holes and is connected with said second end cap notes grease holes, and is communicated with said grease chamber through said inner cap notes grease holes.By the said oiling fat pipe that three sections pipelines are formed and connected by the cutting ferrule nut, easy installation and removal, stable and reliable structure.
The utility model also provides a kind of mining machinery; Comprise above-mentioned motor; In the said mining machinery operation process; Need not to shut down the bearing that promptly can be said motor and add the replacing lubricant grease, change under the operating state and add lubricant grease can also guarantee operating personnel when having guaranteed motor working efficiency personal safety.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of motor that the utility model provided;
Fig. 2 is the structural representation of the another kind of embodiment of motor that the utility model provided;
Fig. 3 is the structural representation of the another kind of embodiment of motor that the utility model provided;
Fig. 4 is the structural representation of a kind of embodiment of oiling fat pipe in the oiling fat assembly in the motor shown in Figure 3.
Embodiment
The core of the utility model provides a kind of motor that is used for mining machinery, and the bearing replacing of this motor adds not to be needed when annotating lubricant grease to shut down.Another core of the utility model provides a kind of mining machinery that comprises above-mentioned motor.
In order to make those skilled in the art person understand the scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of motor that the utility model provided.
In a kind of concrete execution mode; The motor that the utility model provided comprises end cap 3, internal bearing cover 6, bearing 4 and sleeve 7; Gap between said bearing 4, said internal bearing cover 6 and the said sleeve 7 is grease chamber 9; Said internal bearing cover 6 has inner cap and annotates grease holes 61; Said end cap 3 has end cap oiling fat path 31, and said end cap oiling fat path 31 is annotated grease holes 61 with said grease chamber 9 through said inner cap and is communicated with, and the end cap of said end cap oiling fat path 31 is annotated the side that grease nipple 311 is positioned at said end cap 3.
The shaft extension end in said motor bearings enclosing cover 5 outsides generally connects shaft coupling or belt pulley; The end cap of the utility model motor is annotated the side that grease nipple 311 is positioned at said end cap 3, and end cap is annotated grease nipple 311 can be in the bearing end cover 5 and the slit between shaft coupling or the belt pulley of said shaft extension end.Need not shut down and can realize when said bearing 4 needs to add lubricant grease, not influence the normal operation of motor in the process of interpolation lubricant grease, parts such as the shaft coupling of high speed rotating can not cause operating personnel's personal safety accident.
The side of said end cap 3 is meant the end face that is not parallel to said end cap 3 and is positioned at the face of said electric machine main shaft both sides that said end cap 3 has the side of notch cuttype.
Annotate grease nipple 311 through oiling fat device to said end cap and add the notes lubricant grease; Said lubricant grease gets into grease chamber 9 through said end cap oiling fat path 311 and inner cap oiling fat 61 holes; After pressure in the said grease chamber 9 reached certain value, said pressure was lubricated the space that lubricant grease squeezes between bearing 4 inner rings and the outer ring to bearing 4.
Has disc 010 between said bearing 4 and the said bearing end cover 5; Said disc 010 is fixed on the position of adjacent bearing 4 on the rotation axis 8 by back-up ring 012; Constitute waste oil chamber 011, the about 2～4mm of radial clearance between disc 010 outer circular edge and said bearing end cover 5 internal diameters between said disc 010 and the said bearing end cover 5.Said disc 010 rotates with rotation axis 8; Waste oil is thrown away from the gap of disc 010 with bearing end cover 5; And waste oil is stored in the waste oil chamber 011; Through add several times annotate after the lubricant grease again that waste oil is disposable through the discharge of oil extraction fat mouth, not can waste oil throw away that motor cavity is external to pollute.
The material of above-mentioned sleeve 7 can only rub for copper or with iron and steel can not produce the material of spark.
In the concrete execution mode of another kind, said electric machine stand 2 has support and annotates grease holes 21, and said support is annotated grease holes 21 and linked to each other with said end cap notes grease nipple 311, and said support is annotated the support of grease holes 21 and annotated the side that grease nipple 211 is positioned at said support 2.
The side of the side of said support 2 and said end cap 3 is similar; The face that refers to be not parallel to the end face of said end cap 3 on the said support 2 and be positioned at said electric machine main shaft both sides; Said support is annotated grease nipple 211 equally away from the shaft extension end; Under non-stop-machine state, add when annotating lubricant grease, parts such as the shaft coupling of high speed rotating can not threaten operating personnel's personal safety.
In the another kind of concrete execution mode, said end cap oiling fat path 31 comprises that first end cap annotates grease holes 312, second end cap and annotate grease holes 313 and be connected said first end cap and annotate the oiling fat pipe 12 that grease holes 312 and said second end cap are annotated grease holes 313.
Please refer to Fig. 2, Fig. 2 is the structural representation of the another kind of embodiment of motor that the utility model provided.
In the concrete execution mode of another kind, said bearing end cover 5 has enclosing cover and annotates grease holes 51, and said oiling fat pipe 12 passes said enclosing cover and annotates grease holes 51.
Said oiling fat pipe 12 1 ends are annotated grease holes 312 with said first end cap and are linked to each other, and the other end passes said enclosing cover notes grease holes 51 and links to each other with said second end cap notes grease holes 313.Consider that from the structure of said end cap 3 the said oiling fat path of arranging like this 31 is reliable and stable more, and can make the 31 suitable overstrikings of end cap oiling fat path some, the end cap oiling fat path 31 of overstriking, the speed that can accelerate to add the notes lubricant grease.
In the another kind of concrete execution mode, said oiling fat pipe 12 passes end cap notes grease nipple 311 and extends in the said support notes grease holes 21.
Add when annotating lubricant grease, said lubricant grease is annotated grease holes 21 through support earlier, gets into end cap oiling fat path 31 then, gets into inner cap afterwards and annotates grease holes 61, finally gets in the grease chamber 9 and provides lubricated for said bearing 4.In this process, when cooperating, the oiling fat path of different parts has faying face between part and the part, and said oiling fat pipe 12 can effectively avoid said support to annotate the leakage of grease holes 21 and said end cap notes grease nipple 311 junctions.
In the another kind of concrete execution mode, said motor is annotated grease nipple 211 and is had the stauffer cup 11 of notes, and said notes stauffer cup 11 links to each other with said oiling fat pipe 12.Said notes stauffer cup 11 can connect oiling fat device fast, makes oiling fat device and said oiling fat pipe 12 easy to connect.
Obviously, the parts that said and said oiling fat device is connected not only are confined to annotate stauffer cup 11, and its part or the assembly that can connect said oiling fat pipe 12 and said oiling fat device also are fine.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the structural representation of the another kind of embodiment of motor that the utility model provided, and Fig. 4 is the structural representation of a kind of embodiment of oiling fat pipe in the oiling fat assembly in the motor shown in Figure 3.
In another preferred embodiment; Said oiling fat pipe 12 comprises oiling fat pipe joint 121, first straight tube 122, second straight tube 124, short bend pipe 123 and cutting ferrule nut 125; Said oiling fat pipe joint 121 1 ends are connected 122 with said first straight tube, and the other end connects said stauffer cup 11; Said first straight tube 122 passes said support and annotates grease holes 21 and said first end cap notes grease holes 312; One end of the other end of said first straight tube 122 and said second straight tube 124 is connected with the two ends of said short bend pipe 123 respectively; And by said cutting ferrule nut 125 lockings; Said second straight tube 124 passes said enclosing cover notes grease holes 51 and is connected with said second end cap notes grease holes 313, and is communicated with grease chamber 9 through said inner cap notes grease holes 61.
The oiling fat pipe 12 of forming and connecting by cutting ferrule nut 125 by three sections pipelines; Can segmentation install during installation; Can earlier said first straight tube 122 be installed in said support annotates in grease holes 21 and said first end cap notes grease holes 312; Said second straight tube 124 is installed in said enclosing cover annotates in grease holes 51 and said second end cap notes grease holes 313, and then fix with said cutting ferrule nut 125 with said short bend pipe two sections straight tubes of 123 connections and in the junction.12 processing of oiling fat pipe, installation, dismounting and the maintenance of this structure can be carried out in segmentation, and be very convenient.
The parts of three pipelines of above-mentioned connection not only are confined to said cutting ferrule nut 125, and the parts of the connecting line of other easy for installation and good airproof performances also can be applied to this oiling fat pipe 12.
Certainly, said oiling fat pipe 12 not only is confined to above-mentioned situation, can connect said stauffer cup 11 and also can be applied to this end cap oiling fat path 31 with other parts of said second end cap notes grease holes 312 or the assembly of other types of attachment.
Except above-mentioned motor, the utility model also provides a kind of mining machinery that comprises above-mentioned motor, and the structure of these other each several parts of mining machinery please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned mining machinery can be mining machine, drilling machine or road heading machinery.
More than mining machinery and motor thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the execution mode of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (9)
1. motor; It is characterized in that; Comprise internal bearing cover (6), bearing (4), sleeve (7) and end cap (3); Said bearing (4), said internal bearing cover (6) and said sleeve (7) form grease chamber (9), and said internal bearing cover (6) has inner cap and annotates grease holes (61), and said end cap (3) has end cap oiling fat path (31); Said end cap oiling fat path (31) and said grease chamber (9) are annotated grease holes (61) by said inner cap and are communicated with, and the end cap of said end cap oiling fat path (31) is annotated the side that grease nipple (311) is positioned at said end cap (3).
2. motor according to claim 1; It is characterized in that; Said electric machine stand (2) has support and annotates grease holes (21), and said support is annotated grease holes (21) and linked to each other with said end cap notes grease nipples (311), and said support is annotated the support of grease holes (21) and annotated the side that grease nipples (211) are positioned at said support (2).
3. motor as claimed in claim 2; It is characterized in that said end cap oiling fat path (31) comprises that first end cap is annotated grease holes (312), second end cap is annotated grease holes (313) and is connected the oiling fat pipe (12) of said first end cap notes grease holes (312) with said second end cap notes grease holes (313).
4. motor as claimed in claim 3 is characterized in that, said bearing end cover (5) has enclosing cover and annotates grease holes (51), and said oiling fat pipe (12) passes said enclosing cover and annotates grease holes (51).
5. like claim 3 or 4 described motors, it is characterized in that said oiling fat pipe (12) passes said end cap notes grease nipples (311) and extends in the said support notes grease holes (21).
6. motor as claimed in claim 5 is characterized in that, said support is annotated grease nipple (21) and had notes stauffer cup (11), and said notes stauffer cup (11) links to each other with said oiling fat pipe (12).
7. motor as claimed in claim 6; It is characterized in that; Said oiling fat pipe (12) comprises oiling fat pipe joint (121), first straight tube (122), second straight tube (124), short bend pipe (123) and cutting ferrule nut (125), and said oiling fat pipe joint (121) connects said first straight tube (122) and said stauffer cup (11); Said first straight tube (122) and said second straight tube (124) are communicated with by said short bend pipe (123), and all fixing by said cutting ferrule nut (125) in the junction; Said second straight tube (124) is annotated grease holes (313) with said second end cap and is linked to each other.
8. mining machinery, said mining machinery comprise motor mount and are installed in the motor on the motor mount, it is characterized in that said motor is each described motor of claim 1 to 7.
9. mining machinery as claimed in claim 8 is characterized in that, is specially mining machine, drilling machine or road heading machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203581997U CN202206238U (en) | 2011-09-22 | 2011-09-22 | Motor and mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203581997U CN202206238U (en) | 2011-09-22 | 2011-09-22 | Motor and mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206238U true CN202206238U (en) | 2012-04-25 |
Family
ID=45970334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203581997U Expired - Lifetime CN202206238U (en) | 2011-09-22 | 2011-09-22 | Motor and mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206238U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853239A (en) * | 2012-08-29 | 2013-01-02 | 永济新时速电机电器有限责任公司 | Sectional oil filling device for motors |
| CN103746524A (en) * | 2014-01-14 | 2014-04-23 | 无锡欧瑞京机电有限公司 | Motor end cover and bearing assembling structure |
| CN106972680A (en) * | 2017-05-11 | 2017-07-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and the motor with it |
| CN110868022A (en) * | 2019-11-13 | 2020-03-06 | 珠海格力电器股份有限公司 | Oil-cooled motor structure, main drive motor and motor cooling system |
-
2011
- 2011-09-22 CN CN2011203581997U patent/CN202206238U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853239A (en) * | 2012-08-29 | 2013-01-02 | 永济新时速电机电器有限责任公司 | Sectional oil filling device for motors |
| CN103746524A (en) * | 2014-01-14 | 2014-04-23 | 无锡欧瑞京机电有限公司 | Motor end cover and bearing assembling structure |
| CN103746524B (en) * | 2014-01-14 | 2017-02-15 | 无锡欧瑞京机电有限公司 | Motor end cover and bearing assembling structure |
| CN106972680A (en) * | 2017-05-11 | 2017-07-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and the motor with it |
| CN106972680B (en) * | 2017-05-11 | 2023-10-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and motor with same |
| CN110868022A (en) * | 2019-11-13 | 2020-03-06 | 珠海格力电器股份有限公司 | Oil-cooled motor structure, main drive motor and motor cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: Sany Group Co.,Ltd. Beijing Branch Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: BEIJING SANY MOTOR SYSTEM Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200819 Address after: 102200 1st floor, building 2, No.31 yard, Nanyan Road, Nankou Town, Changping District, Beijing Patentee after: Beijing Sany Intelligent Motor Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: Sany Group Co.,Ltd. Beijing Branch |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |
|
| CX01 | Expiry of patent term |