CN112747104A - Novel speed reducer of coiling machine - Google Patents

Novel speed reducer of coiling machine Download PDF

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Publication number
CN112747104A
CN112747104A CN202011488247.4A CN202011488247A CN112747104A CN 112747104 A CN112747104 A CN 112747104A CN 202011488247 A CN202011488247 A CN 202011488247A CN 112747104 A CN112747104 A CN 112747104A
Authority
CN
China
Prior art keywords
speed reduction
gear
pivot
reduction
box
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
Application number
CN202011488247.4A
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Chinese (zh)
Inventor
闫世海
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.)
Anhui Haiyi Heavy Industry Co ltd
Chaohu Juli Machinery Manufacturing Co ltd
Original Assignee
Anhui Haiyi Heavy Industry 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 Anhui Haiyi Heavy Industry Co ltd filed Critical Anhui Haiyi Heavy Industry Co ltd
Priority to CN202011488247.4A priority Critical patent/CN112747104A/en
Publication of CN112747104A publication Critical patent/CN112747104A/en
Pending legal-status Critical Current

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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
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines

Abstract

The invention discloses a novel coiler speed reducer which comprises a box body, wherein a motor mounting rack is arranged on the box body, a motor is mounted on the motor mounting rack, the box body comprises a speed reduction gear box and a speed reduction rotating shaft box, a plurality of meshed speed reduction rotating shafts are arranged in the speed reduction gear box, the motor is connected with the input ends of the meshed speed reduction rotating shafts through a coupler, a speed reduction output shaft penetrates through the speed reduction rotating shaft box, third gear shafts on the meshed speed reduction rotating shafts are meshed with a driving gear disc on the speed reduction output shaft, and an oil filling pipe and an oil discharging pipe are arranged on the box body. The motor drives the reduction gear rotating shaft to be combined to achieve certain speed reduction and then drives the reduction output shaft to rotate, so that the reduction effect is good, the disassembly, the maintenance and the installation are convenient, and meanwhile, the oil is favorably added to the reduction gear rotating shaft combined part to reduce friction and improve the reduction efficiency.

Description

Novel speed reducer of coiling machine
Technical Field
The invention relates to the technical field of speed reducers, in particular to a novel speed reducer of a coiling machine.
Background
The reduction gear serves to match the rotational speed and the torque transmission between the prime mover and the working machine or the actuator, and is used in modern machines in a very wide range of applications. The speed reducer is an independent closed transmission device between a prime motor and a working machine and is used for reducing the rotating speed and increasing the torque so as to meet the working requirement. However, the existing reducer is difficult to disassemble and maintain, poor in reducing effect and large in gear abrasion, and cannot adapt to the operation of the existing reducer under high-speed operation.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a novel speed reducer of a coiling machine, which solves the problems of difficult maintenance, disassembly and assembly and poor speed reducing effect.
The novel speed reducer of the coiling machine comprises a box body, wherein a motor mounting rack is arranged on the box body, a motor is mounted on the motor mounting rack, the box body comprises a speed reduction gear box and a speed reduction rotating shaft box, a plurality of meshed speed reduction rotating shafts are arranged in the speed reduction gear box, the motor is connected with the input ends of the meshed speed reduction rotating shafts through couplings, a speed reduction output shaft penetrates through the speed reduction rotating shaft box, third gear shafts on the meshed speed reduction rotating shafts are meshed with a driving gear disc on the speed reduction output shaft, all the meshed speed reduction rotating shafts are meshed with a gear disc on the next speed reduction rotating shaft through a gear shaft on the previous speed reduction rotating shaft to perform gradual speed reduction, a ventilation cover is arranged at the top of the speed reduction gear box, and an oil filling pipe and an oil discharging pipe are arranged on the box body.
In some embodiments of the present invention, the plurality of mutually meshed deceleration rotating shafts include a first deceleration rotating shaft, a second deceleration rotating shaft and a third deceleration rotating shaft, which perform deceleration sequentially, an input end of the first deceleration rotating shaft is connected to the coupler, the first deceleration rotating shaft is provided with a first gear shaft, the second deceleration rotating shaft is provided with a second gear shaft and a second gear disc, the third deceleration rotating shaft is provided with a third gear shaft and a third gear disc, the first gear shaft is meshed with the second gear disc, the second gear shaft is meshed with the third gear disc, and the third gear shaft is meshed with the driving gear disc.
In other embodiments of the present invention, the first, second and third decelerating rotating shafts are rotatably mounted in the decelerating gear box by a first bearing set, a second bearing set and a third bearing set, respectively, and the bearings of the first, second and third bearing sets are fixed on the inner walls of the decelerating gear box respectively.
In other embodiments of the present invention, the first, second, and third decelerating rotating shafts are all hollow shafts, one end of the first decelerating rotating shaft in the decelerating gear box is sealed by a shaft end baffle, an end cover is disposed on a wall of the decelerating gear box, and the decelerating gear boxes on two ends of the second decelerating rotating shaft and the third decelerating rotating shaft are both provided with an end cover.
In other embodiments of the present invention, the axes of the second decelerating rotational shaft, the third decelerating rotational shaft and the decelerating output shaft are in the same plane.
In other embodiments of the present invention, the deceleration output shaft is sleeved with a limit cover at the position of the outer wall of the deceleration rotating shaft box, and the deceleration output shaft is further sleeved with a mechanical sealing element outside the limit cover, the mechanical sealing element is fixed on the limit cover through a bolt, and the limit cover is fixed on the outer wall of the deceleration rotating shaft box through a bolt.
In other embodiments of the present invention, a limiting cavity is disposed in the limiting cover, and a limiting ring is disposed on the reduction output shaft and is rotatably disposed in the limiting cavity.
In other embodiments of the invention, the reduction gear box is provided with observation windows at the top and the side edges for observing the meshing condition of the gear positions.
According to the invention, the reducing gear rotating shafts in the speed reducer are independently arranged, the reducing output shafts driven by speed reduction are also independently arranged, and the motor drives the reducing gear rotating shafts to be combined to achieve certain speed reduction and then drives the reducing output shafts to rotate, so that the speed reduction effect is good, the disassembly, maintenance and installation can be facilitated, and meanwhile, the oil can be added to the reducing gear rotating shaft combined part, so that the friction is reduced, and the reduction efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic cross-sectional structure diagram of a novel speed reducer of a coiling machine according to the invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is a schematic structural diagram of the engagement between the first decelerating rotating shaft and the second decelerating rotating shaft according to the present invention.
Fig. 4 is a top sectional view of a novel speed reducer of a coiling machine (without a motor).
Fig. 5 is a front sectional view of a novel speed reducer of a coiling machine provided by the invention.
In the figure: 1. a motor; 2. a coupling; 3. a first decelerating rotational shaft; 31. an input end; 32. a first gear shaft; 33. a first bearing set; 4. a second deceleration rotating shaft; 41. a second gear shaft; 42. a second gear wheel disc; 43. a second bearing set; 5. a third decelerating rotational shaft; 51. a third gear shaft; 52. a third gear plate; 53. a third bearing set; 6. a deceleration output shaft; 60. a limiting ring; 61. a drive gear plate; 62. a mechanical seal; 63. a limiting cover; 7. a motor mounting bracket; 8. a ventilation cover; 9. a box body; 10. an end cap; 11. and a shaft end baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The invention provides a novel speed reducer of a coiling machine, which comprises a box body 9, wherein a motor mounting rack 7 is arranged on the box body 9, the motor mounting rack 7 is provided with a motor 1, the box body 9 comprises a reduction gear box and a reduction rotating shaft box, a plurality of mutually meshed speed reducing rotating shafts are arranged in the speed reducing gear box, the motor 1 is connected with the input ends 31 of the mutually meshed speed reducing rotating shafts through a coupler 2, a speed reducing output shaft 6 is arranged on the speed reducing rotating shaft box in a penetrating way, a third gear shaft 51 on the plurality of mutually meshed speed reducing rotating shafts is meshed with a driving gear disc 61 on the speed reducing output shaft 6, the plurality of mutually meshed deceleration rotating shafts are meshed with the gear disc on the next deceleration rotating shaft through the gear shaft on the previous deceleration rotating shaft to perform gradual deceleration, the top of the reduction gear box is provided with a ventilation cover 8, and the box body 9 is provided with an oil filling pipe and an oil discharging pipe.
The reduction gear box is arranged at the front half section part of the upper part of the reduction rotating shaft box and is communicated with the reduction rotating shaft box. And motor mounting 7 speed reduction shaft box upper portion back half section part, the motor is installed back on motor mounting 7, be connected motor shaft and speed reduction shaft's input 31 through shaft coupling 2, guarantee to refuel to box 9 from adding oil pipe position, lubricate, then open motor 1, rotate with the speed reduction shaft who drives a plurality of intermeshing, all through last epaxial gear shaft of last speed reduction in a plurality of intermeshing's the speed reduction shaft and the epaxial gear wheel dish meshing of next speed reduction shaft, reduce speed step by step, then drive gear wheel dish 61 on drive speed reduction output shaft 6, thereby drive speed reduction output shaft 6 rotates, and speed reduction gear box and speed reduction shaft box all install through the bolt, it is all very convenient to dismantle the installation.
The plurality of mutually meshed speed reduction rotating shafts comprise a first speed reduction rotating shaft 3, a second speed reduction rotating shaft 4 and a third speed reduction rotating shaft 5 which are sequentially subjected to speed reduction, the input end 31 of the first speed reduction rotating shaft 3 is connected with the coupler 2, the first speed reduction rotating shaft 3 is provided with a first gear shaft 32, the second speed reduction rotating shaft 4 is provided with a second gear shaft 41 and a second gear disc 42, the third speed reduction rotating shaft 5 is provided with a third gear shaft 51 and a third gear disc 52, the first gear shaft 32 is meshed with the second gear disc 42, the second gear shaft 41 is meshed with the third gear disc 52, and the third gear shaft 52 is meshed with the driving gear disc 61.
The motor drives the first speed reducing rotating shaft 3 to rotate, so that the first gear shaft 32 is driven to rotate, the first gear shaft 32 is meshed with the second gear disc 42 sequentially, the second gear shaft 41 is meshed with the third gear disc 52, and the third gear shaft 52 is meshed with the driving gear disc 61 to drive the second speed reducing rotating shaft 4, the third speed reducing rotating shaft 5 and the speed reducing output shaft 6 to rotate, so that the speed reducing output shaft 6 rotates by being greatly reduced compared with the rotating speed of the motor. The deceleration effect is achieved.
The first speed reduction rotating shaft 3, the second speed reduction rotating shaft 4 and the third speed reduction rotating shaft 5 are rotatably installed in the speed reduction gear box through a first bearing group 33, a second bearing group 43 and a third bearing group 53 respectively, and bearings on the first bearing group 33, the second bearing group 43 and the third bearing group 53 are fixed on the inner walls of two sides of the speed reduction gear box respectively.
The first speed-reducing rotating shaft 3, the second speed-reducing rotating shaft 4 and the third speed-reducing rotating shaft 5 are all rotationally fixed on the inner wall of the speed-reducing gear box through bearing combination. The friction is small, and the driving efficiency is high.
First speed reduction pivot 3, second speed reduction pivot 4 and third speed reduction pivot 5 are the cavity axis body, first speed reduction pivot 3 carries out the termination through axle head baffle 11 in reduction gear box and is equipped with end cover 10 on the reduction gear box wall, and all be equipped with end cover 10 on the reduction gear box at both ends on second speed reduction pivot 4 and the third speed reduction pivot 5.
The end cover 10 is arranged on the first speed-reducing rotating shaft 3, the second speed-reducing rotating shaft 4 and the third speed-reducing rotating shaft 5, so that the insertion is convenient, and the installation of the bearing combination is also convenient.
The axes of the second speed reducing rotating shaft 4, the third speed reducing rotating shaft 5 and the speed reducing output shaft 6 are in the same plane. The second speed reducing rotating shaft 4 is arranged on the same plane, and after being driven by the first speed reducing rotating shaft, the rear rotating shaft is more convenient and has higher efficiency. And the same plane has a certain gradient, so that the engagement degree is improved.
The speed reduction output shaft 6 is sleeved with a limit cover 63 at the outer wall of the speed reduction rotary shaft box, the speed reduction output shaft 6 is further sleeved with a mechanical sealing element 62 at the outer side of the limit cover 63, the mechanical sealing element 62 is fixed on the limit cover 63 through a bolt, and the limit cover 63 is fixed on the outer wall of the speed reduction rotary shaft box through a bolt.
The speed reduction output shaft 6 penetrates through the speed reduction rotating shaft box and is sleeved on the speed reduction rotating shaft box, sealing and limiting are needed to be carried out on the position of the box wall, the speed reduction output shaft 6 is limited to move by the limiting cover 63, the mechanical sealing element 62 can carry out shaft sealing on the speed reduction output shaft 6, and the effect of sealing oil is achieved.
The limiting cover 63 is internally provided with a limiting cavity, the speed reducing output shaft 6 is provided with a limiting ring 60, and the limiting ring 60 is rotatably arranged in the limiting cavity.
The limiting ring 60 is fixedly sleeved on the speed reducing output shaft 6 and clamped in the limiting cavity, so that the speed reducing output shaft 6 can not be pulled back and rocked left and right to limit the speed reducing output shaft 6.
The top and the side of the reduction gear box are provided with observation windows 80 for observing the meshing condition of the gear positions. The lubricating oil condition inside the motor is known, and the lubricating oil is replaced in time so as to improve the driving efficiency of the motor.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides a novel coiling machine reduction gear, includes box (9), be equipped with motor mounting bracket (7) on box (9), install motor (1), its characterized in that on motor mounting bracket (7): the box (9) includes reduction gear box and speed reduction pivot case, be equipped with a plurality of intermeshing's speed reduction pivot in the reduction gear box, motor (1) links to each other through shaft coupling (2) with input (31) of a plurality of intermeshing's speed reduction pivot, run through on the speed reduction pivot case and be equipped with speed reduction output shaft (6), drive gear dish (61) meshing on a plurality of intermeshing's speed reduction pivot all through last one last speed reduction epaxial gear shaft and the last gear dish meshing of next speed reduction pivot in a plurality of intermeshing's speed reduction pivot, speed reduction step by step, reduction gear box top is equipped with ventilative cover (8), be equipped with on box (9) and add oil pipe and arrange oil pipe.
2. A new reducer of coiler according to claim 1, characterized in that: the utility model discloses a gear reduction mechanism, including a plurality of intermeshing's speed reduction pivot (3), second speed reduction pivot (4) and third speed reduction pivot (5) that carry out the speed reduction in proper order, input (31) and shaft coupling (2) of first speed reduction pivot (3) are connected, be equipped with first gear shaft (32) on first speed reduction pivot (3), be equipped with second gear shaft (41) and second toothed disc (42) on second speed reduction pivot (4), be equipped with third gear shaft (51) and third toothed disc (52) on third speed reduction pivot (5), first gear shaft (32) and second toothed disc (42) meshing, second gear shaft (41) and third toothed disc (52) meshing, third gear shaft (52) and drive toothed disc (61) meshing.
3. A new reducer of coiler according to claim 2, characterized in that: first speed reduction pivot (3), second speed reduction pivot (4) and third speed reduction pivot (5) are installed in reduction gear through first bearing group (33), second bearing group (43) and third bearing group (53) rotation respectively, and first bearing group (33), second bearing group (43) and third bearing group (53) upper bearing are equallyd divide and are fixed respectively on the inner wall of reduction gear both sides.
4. A new reducer of coiler according to claim 2, characterized in that: first speed reduction pivot (3), second speed reduction pivot (4) and third speed reduction pivot (5) are the cavity axis body, first speed reduction pivot (3) carry out the termination through axle head baffle (11) in reduction gear and are equipped with end cover (10) on the reduction gear tank wall, and all be equipped with end cover (10) on the reduction gear box at both ends on second speed reduction pivot (4) and third speed reduction pivot (5).
5. A new coiler speed reducer according to any of the claims 2-4, characterized in that: and the axes of the second speed reduction rotating shaft (4), the third speed reduction rotating shaft (5) and the speed reduction output shaft (6) are in the same plane.
6. A new reducer of coiler according to claim 1, characterized in that: the outer wall of the speed reduction rotating shaft box is sleeved with a limiting cover (63) of the speed reduction output shaft (6), the outer side of the limiting cover (63) of the speed reduction output shaft (6) is further sleeved with a mechanical sealing element (62), the mechanical sealing element (62) is fixed on the limiting cover (63) through a bolt, and the limiting cover (63) is fixed on the outer wall of the speed reduction rotating shaft box through a bolt.
7. A novel coiler decelerator according to claim 6, characterised in that: the limiting cover is characterized in that a limiting cavity is formed in the limiting cover (63), a limiting ring (60) is arranged on the speed reduction output shaft (6), and the limiting ring (60) can be rotatably arranged in the limiting cavity.
8. A new reducer of coiler according to claim 1, characterized in that: and the top and the side edges of the reduction gear box are provided with observation windows (80) for observing the meshing condition of the gear positions.
CN202011488247.4A 2020-12-16 2020-12-16 Novel speed reducer of coiling machine Pending CN112747104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011488247.4A CN112747104A (en) 2020-12-16 2020-12-16 Novel speed reducer of coiling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011488247.4A CN112747104A (en) 2020-12-16 2020-12-16 Novel speed reducer of coiling machine

Publications (1)

Publication Number Publication Date
CN112747104A true CN112747104A (en) 2021-05-04

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ID=75647951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011488247.4A Pending CN112747104A (en) 2020-12-16 2020-12-16 Novel speed reducer of coiling machine

Country Status (1)

Country Link
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682799A (en) * 1993-04-28 1997-11-04 Ivan Ivanov Dimov External cylindrical gearing
JP2001016824A (en) * 1999-06-24 2001-01-19 Toshiba Tec Corp Motor having decelerator
WO2008138206A1 (en) * 2007-05-14 2008-11-20 Wuxi Kipor Power Co., Ltd. A driver for a back axle of a loader
CN102588565A (en) * 2012-02-24 2012-07-18 南京宁嘉机电有限公司 Integrated gear box matched with rubber-plastic press roller
CN202353383U (en) * 2011-12-09 2012-07-25 浙江康明斯机械有限公司 Triple reducing motor
CN208634333U (en) * 2018-05-08 2019-03-22 洪飞飞 A kind of dismembyator speed reducer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682799A (en) * 1993-04-28 1997-11-04 Ivan Ivanov Dimov External cylindrical gearing
JP2001016824A (en) * 1999-06-24 2001-01-19 Toshiba Tec Corp Motor having decelerator
WO2008138206A1 (en) * 2007-05-14 2008-11-20 Wuxi Kipor Power Co., Ltd. A driver for a back axle of a loader
CN202353383U (en) * 2011-12-09 2012-07-25 浙江康明斯机械有限公司 Triple reducing motor
CN102588565A (en) * 2012-02-24 2012-07-18 南京宁嘉机电有限公司 Integrated gear box matched with rubber-plastic press roller
CN208634333U (en) * 2018-05-08 2019-03-22 洪飞飞 A kind of dismembyator speed reducer

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Effective date of registration: 20220110

Address after: 238000 intersection of yizhangshan road and xiagehe Road, Xiage Park, Anhui Juchao Economic Development Zone, Chaohu City, Hefei City, Anhui Province

Applicant after: Anhui Haiyi Heavy Industry Co.,Ltd.

Applicant after: Chaohu Juli Machinery Manufacturing Co.,Ltd.

Address before: 238000 intersection of yizhangshan road and xiagehe Road, Xiage Park, Anhui Juchao Economic Development Zone, Chaohu City, Hefei City, Anhui Province

Applicant before: Anhui Haiyi Heavy Industry Co.,Ltd.

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Application publication date: 20210504

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