CN113983146A - Special gear speed reducer for plug flow machine - Google Patents
Special gear speed reducer for plug flow machine Download PDFInfo
- Publication number
- CN113983146A CN113983146A CN202111332076.0A CN202111332076A CN113983146A CN 113983146 A CN113983146 A CN 113983146A CN 202111332076 A CN202111332076 A CN 202111332076A CN 113983146 A CN113983146 A CN 113983146A
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- China
- Prior art keywords
- end cover
- shaft
- transmission
- output shaft
- bearing
- 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
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 230000009467 reduction Effects 0.000 claims abstract description 9
- 208000032370 Secondary transmission Diseases 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003921 oil Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
Classifications
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- 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
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- 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
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a special gear reducer for a plug flow machine, which comprises a box body, an output end cover, an input end cover, an output shaft, an input shaft, a bearing end cover and a secondary transmission speed reduction assembly, wherein the output end cover is arranged on the box body; a flange plate is arranged on the rear side of the input end cover; a sealing sleeve matched with the output shaft is arranged on the front side of the bearing end cover; the secondary drive speed reduction assembly comprises a driving gear, a drive gearwheel, a drive shaft, a drive pinion and a driven gearwheel, the drive pinion and the drive gearwheel are respectively sleeved and fixed on the front side and the rear side of the drive shaft, the driving gear is installed at the front end of the input shaft and meshed with the drive gearwheel, the drive pinion is meshed with the driven gearwheel and connected with the driven gearwheel, and the driven gearwheel is installed at the rear end of the output shaft. The invention has simple structure, strong integral sealing performance of the speed reducer, stable transmission, strong bearing capacity and good wear resistance, and realizes transmission directly by the meshing of the big gear and the small gear.
Description
Technical Field
The invention belongs to the technical field of speed reducers, and particularly relates to a special gear speed reducer for a plug flow machine.
Background
In the sewage treatment process, a plug flow machine is required to be used for plug flow or stirring, so that the activated sludge is uniformly diffused in water and is not precipitated, the plug flow machine mainly supplies power through a motor and a speed reducer, the motor inputs the power to the speed reducer, the speed reducer reduces the speed and increases the torque and then outputs the power to a blade, and the blade rotates to realize continuous plug flow and stirring of water, so that the water continuously and uniformly flows and meets the technological requirements.
Cycloidal speed reducers such as CN201710029831.5 and 201911127236.0 are generally selected as the speed reducer of the existing plug flow machine, but the internal structure of the existing cycloidal speed reducer is complex, a pin gear pin is easy to wear and is not good in stress state, and parts are very troublesome to replace; meanwhile, the shell of the speed reducer is poor in sealing performance and easy to enter dust, the dust is accumulated to aggravate abrasion among transmission parts, precision is reduced, the service life is prolonged, and therefore the use requirement in the sewage treatment process cannot be met.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the special gear reducer for the flow pushing machine, which has the advantages of simple structure, convenience in disassembly and assembly, high transmission efficiency and good sealing property.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a special gear reducer for a plug flow machine comprises a box body, an output end cover and an input end cover, wherein the output end cover and the input end cover are respectively fixed at the front end and the rear end of the box body; a flange plate is arranged on the rear side of the input end cover; a sealing sleeve matched with the output shaft is arranged on the front side of the bearing end cover;
the secondary drive speed reduction subassembly includes driving gear, transmission gear wheel, transmission shaft, transmission pinion and driven gear wheel, the transmission shaft both ends link to each other with output end housing and input end housing inner through the bearing respectively, the transmission pinion cup joints the front and back both sides of fixing at the transmission shaft with the transmission gear wheel respectively, driving gear fixed mounting is at the front end of input shaft, driven gear wheel fixed mounting is at the rear end of output shaft, the driving gear links to each other with the meshing of transmission gear wheel, the transmission pinion links to each other with the meshing of driven gear wheel.
As a further improvement of the invention: an outer sealing groove and an inner sealing groove are formed in the flange plate, and the sealing effect of connection of the speed reducer and equipment such as a motor is guaranteed.
As a further improvement of the invention: the seal cover is sleeved on the output shaft, a water return groove is formed in the front side of the position, combined with the output shaft, of the seal cover, and a waterproof outer ring and a waterproof inner ring are arranged on the rear side of the position, combined with the output shaft, of the seal cover.
According to the invention, through the split design of the sealing sleeve and the box body, the waterproof inner ring and the waterproof outer ring are convenient to replace, and meanwhile, the design of the water return groove, the waterproof outer ring and the waterproof inner ring ensures the sealing effect between the output shaft and the box body, and ensures the integral sealing property of the speed reducer.
For more convenient installation, the input shaft is a hollow shaft.
As a further improvement of the invention: the connecting surfaces of the output end cover, the input end cover and the box body are respectively provided with a sealing gasket, so that the sealing effect of the whole speed reducer is further improved.
As a further improvement of the invention: and a sealing ring is arranged on the joint surface of the output end cover and the bearing end cover, so that the sealing property between the output end cover and the bearing end cover is ensured.
As a further improvement of the invention: an oil return groove is arranged on the bearing end cover at the joint of the output shaft. The oil return groove can be designed in an inclined groove mode, so that lubricating oil in the box body can conveniently flow back in the rotating process of the output shaft.
Further: and an oil seal ring is arranged at the joint of the bearing end cover and the output shaft at the front side of the oil return groove, so that the lubricating oil is prevented from leaking.
According to the invention, the driving gear is meshed with the driving gear to drive the large gear to drive, then the driving shaft is driven to rotate, and the driving shaft drives the small gear to realize first-stage speed reduction; and the driven gearwheel is driven to rotate by the transmission pinion, and the driven gearwheel is sleeved on the output shaft to realize secondary speed reduction. The invention has simple structure, large transmission ratio, high transmission efficiency and strong bearing capacity, and directly realizes transmission through the meshing of the big gear and the small gear.
According to the invention, different speed ratios can be obtained by controlling the size and the number of teeth of the gear or the number of teeth of the tooth part of the output shaft, and the speed reducer realizes that the volume is unchanged and the speed ratio is greatly changed, so that the speed reducer is suitable for different occasions; the speed reducer has the advantages of good stress condition, stable operation and the like.
According to the invention, through the design of double sealing of the outer sealing groove and the inner sealing groove of the flange plate, the sealing effect of the connection between the speed reducer and the motor is ensured; by the design of the sealing sleeve, the sealing effect between the output shaft and the box body is ensured; the sealing rings are arranged between the box body and the output end cover and between the box body and the input end cover, so that the sealing performance among all the components of the shell of the speed reducer is ensured, and the integral sealing performance of the speed reducer is realized.
The speed reducer is simple and compact in structure, greatly improves the maintenance efficiency, and is good in economical efficiency.
Drawings
FIG. 1 is a schematic perspective view of a speed reducer according to the present invention;
FIG. 2 is a top view of the reducer of the present invention;
FIG. 3 is a front cross-sectional view of the reducer of the present invention;
fig. 4 is an enlarged view of a portion a of fig. 3.
In the figure: 1-a box body; 2-a base; 3-an output end cover; 4-bearing end cap; 5-an output shaft; 6-input end cover; 7-a flange plate; 8-outer seal groove; 9-inner seal groove; 10-an input shaft; 11-a keyway; 12-gasket No. one; 13-bearing number one; 14-a drive shaft; 15-sealing sleeve; 16-bearing number two; 17-bearing number three; 18-oil plug; 19-a drive gear; 20-driven bull gear; 21-seal number two; 22-driving gearwheel; 23-a drive pinion; 24-a sealing ring; 25-an oil return groove; 26-oil seal ring; 27-waterproof inner ring; 28-waterproof outer ring; 29-water return tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings. The embodiments and drawings referred to in this invention are only for the purpose of explaining the invention, and do not constitute an undue limitation on the invention.
In the embodiments of the present invention, the input terminal is used as the rear terminal, and the output terminal is used as the front terminal.
As shown in fig. 1 to 4, the special gear reducer for a fluid-pushing machine according to this embodiment includes a box 1 and a base 2, the base 2 is fixedly installed below the box 1, an output end cover 3 is installed at the front end of the box 1, an input end cover 6 is installed at the rear end of the box 1, an output shaft 5 is installed in the output end cover 3 through a second bearing 16 and a third bearing 17, an input shaft 10 is installed in the input end cover 6 through a bearing, the rear side of the input end cover 6 is connected with a flange 7, the flange 7 is provided with an outer sealing groove 8 and an inner sealing groove 9, the front side of the output end cover 3 is fixedly connected with the bearing end cover 4 through a bolt, a sealing sleeve 15 is installed at the front side of the bearing end cover 4, the sealing sleeve is sleeved on the output shaft, a water return groove 29 is formed in the sealing sleeve 15, a waterproof inner ring 27 and a waterproof outer ring 28 are installed at an assembly position of the sealing sleeve 15 and the output shaft 5, and a waterproof inner ring 28 and a waterproof sealing groove is installed through the outer sealing groove 8, The double-seal design of inner seal groove 9 has guaranteed this speed reducer and motor hookup location's sealed effect, sets up return water tank 29, waterproof inner circle 27 and waterproof outer lane 28 in through seal cover 15, has guaranteed the sealed effect between output shaft 5 and the box 1, ensures the holistic leakproofness of speed reducer.
As shown in fig. 1, the input shaft 10 in this embodiment is hollow, and in the assembling process, a key groove is formed in the hollow of the input shaft, and the input shaft and the main shaft of the driving motor can be connected through a key, so that the installation is convenient and reliable.
As shown in fig. 3: a first sealing gasket 12 is arranged on the connecting surface of the output end cover 3 and the box body 1, a second sealing gasket 21 is arranged on the connecting surface of the input end cover 6 and the box body, and the first sealing gasket 12 and the second sealing gasket 21 are mainly used for ensuring the sealing performance of the connection of the output end cover 3 and the input end cover 6 with the box body 1.
As illustrated in fig. 3: the drive assembly that this embodiment relates to specifically is: a driving gear 19 is sleeved at one end of the input shaft 10, which is far away from the flange plate 7, the driving gear 19 is meshed with a transmission gearwheel 22, the transmission gearwheel 22 is in transmission connection with the transmission shaft 14 through a key, and the input shaft 10 drives the transmission shaft 14 to rotate through the driving gear 19 and the transmission gearwheel 22; a transmission pinion 23 is sleeved on one end, far away from the transmission gearwheel 22, of the transmission shaft 14, the transmission pinion 23 is meshed with the driven gearwheel 20, and the transmission shaft 14 rotates to drive the transmission pinion 23 to rotate so as to realize first-stage speed reduction; the driven bull gear 20 is sleeved on the rear end of the output shaft 5, and the driving pinion 23 drives the driven bull gear 20 to rotate, so that second-stage speed reduction is realized. In this embodiment, two ends of the transmission shaft 14 are respectively connected with the inner ends of the output end cover and the input end cover through a first bearing 13.
As shown in fig. 3 and 4: the bottom of the box body 1 is provided with an oil drain plug 18 through fine thread connection, a sealing ring 24 is arranged on a joint surface of the output end cover 3 and the bearing end cover 4, an oil return groove 25 is formed in an assembling position of the bearing end cover 4 and the output shaft 5, an oil sealing ring 26 is arranged on the front side of the oil return groove 25, and the oil return groove 25 is designed in an inclined groove mode so that lubricating oil can conveniently flow back in the rotating process of the output shaft 5.
The transmission process of the embodiment is as follows: the input shaft 10 is connected with a main shaft of a driving motor, the main shaft of the driving motor drives the input shaft 10 to rotate, the input shaft 10 drives the transmission shaft 14 to rotate through the meshing of the driving gear 19 and the transmission large gear 22, the transmission shaft 14 drives the output shaft 5 to rotate through the meshing of the transmission small gear 23 and the driven large gear 20, two-stage speed reduction is achieved, cylindrical gears are selected for gear transmission, and the gear transmission is stable, has good wear resistance, and is simple in structure, strong in bearing capacity and long in service life.
In the embodiment, the sealing sleeve 15 and the box body 1 are designed in a split mode, so that the waterproof inner ring 27 and the waterproof outer ring 28 can be conveniently replaced, the overhauling efficiency is greatly improved, and the economical efficiency is better; the double-seal design of the outer seal groove 8 and the inner seal groove 9 on the flange 7 ensures the sealing effect of the connection position of the device and the motor; a water return groove 29, a waterproof inner ring 27 and a waterproof outer ring 28 in the sealing sleeve 15 at the power output position of the output shaft 5 ensure the sealing effect between the output shaft 5 and the box body 1; the water return groove 29 is designed to be inclined at the outer side, so that water in the water return groove can be conveniently discharged in the rotating process of the output shaft 5, the oil return groove 25 is designed to be inclined at the inner side, so that lubricating oil can be conveniently returned into the box body 1 in the rotating process of the output shaft 5, and the integral sealing performance of the speed reducer is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are presented in order to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a special gear reducer of plug flow machine, includes the box, fixes output end cover and the input end cover at both ends around the box respectively, install the output shaft through the bearing in the output end cover, install the input shaft through the bearing in the input end cover, the output end cover outside is equipped with bearing end cover, its characterized in that: a secondary transmission speed reducing assembly is arranged in the box body; a flange plate is arranged on the rear side of the input end cover; a sealing sleeve matched with the output shaft is arranged on the front side of the bearing end cover; the secondary drive speed reduction subassembly includes driving gear, transmission gear wheel, transmission shaft, transmission pinion and driven gear wheel, the transmission shaft both ends link to each other with output end housing and input end housing inner through the bearing respectively, the transmission pinion cup joints the front and back both sides of fixing at the transmission shaft with the transmission gear wheel respectively, driving gear fixed mounting is at the front end of input shaft, driven gear wheel fixed mounting is at the rear end of output shaft, the driving gear links to each other with the meshing of transmission gear wheel, the transmission pinion links to each other with the meshing of driven gear wheel.
2. The special gear reducer for a flow pushing machine according to claim 1, wherein: an outer sealing groove and an inner sealing groove are formed in the flange plate.
3. The gear reducer special for a flow pushing machine according to claim 1 or 2, characterized in that: the seal cover is sleeved on the output shaft, a water return groove is formed in the front side of the position, combined with the output shaft, of the seal cover, and a waterproof outer ring and a waterproof inner ring are arranged on the rear side of the position, combined with the output shaft, of the seal cover.
4. The special gear reducer for a flow pushing machine according to claim 1, wherein: the input shaft is a hollow shaft.
5. The special gear reducer for a flow pushing machine according to claim 1, wherein: and sealing gaskets are respectively arranged on the connecting surfaces of the output end cover, the input end cover and the box body.
6. The special gear reducer for a flow pushing machine according to claim 1, wherein: and a sealing ring is arranged on the joint surface of the output end cover and the bearing end cover.
7. The special gear reducer for a flow pushing machine according to claim 1, wherein: an oil return groove is arranged on the bearing end cover at the joint of the output shaft.
8. The special gear reducer for a flow pushing machine according to claim 7, wherein: and an oil seal ring is arranged at the joint of the bearing end cover and the output shaft at the front side of the oil return groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332076.0A CN113983146B (en) | 2021-11-11 | 2021-11-11 | Gear reducer special for plug flow machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332076.0A CN113983146B (en) | 2021-11-11 | 2021-11-11 | Gear reducer special for plug flow machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113983146A true CN113983146A (en) | 2022-01-28 |
| CN113983146B CN113983146B (en) | 2024-07-02 |
Family
ID=79747884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111332076.0A Active CN113983146B (en) | 2021-11-11 | 2021-11-11 | Gear reducer special for plug flow machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113983146B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111344A (en) * | 2022-08-26 | 2022-09-27 | 江苏南江减速机有限公司 | High-strength speed reducer casing for new energy automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100253005A1 (en) * | 2009-04-03 | 2010-10-07 | Liarakos Nicholas P | Seal for oil-free rotary displacement compressor |
| CN201789372U (en) * | 2010-04-16 | 2011-04-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Parallel shaft gear speed reducer integrated with motor |
| CN102042367A (en) * | 2009-10-26 | 2011-05-04 | 赫斯默(上海)电子科技有限公司 | Parallel output helical gear reducer |
| CN202301762U (en) * | 2011-09-30 | 2012-07-04 | 佛山市星光传动机械有限公司 | Improved speed reducer |
| CN102797795A (en) * | 2012-08-02 | 2012-11-28 | 完颜学明 | Dual-shaft multistage speed reducer |
| CN203948570U (en) * | 2014-06-28 | 2014-11-19 | 浙江汇鑫传动机械有限公司 | The rolling mill speed reducer that a kind of transmission stability is good |
| CN208565443U (en) * | 2018-05-18 | 2019-03-01 | 杭州威煌减速机有限公司 | Metallurgical ceramic machinery helical gear worm decelerating machine |
| CN209539987U (en) * | 2018-12-27 | 2019-10-25 | 扬州高力机械有限公司 | A kind of speed reducer inversion type axle sealing structure |
| CN211924855U (en) * | 2020-03-23 | 2020-11-13 | 李俊丽 | Waterproof gear box |
| CN213270893U (en) * | 2020-09-16 | 2021-05-25 | 天津巨刚减速机制造有限公司 | Multistage gear drive speed reducer |
-
2021
- 2021-11-11 CN CN202111332076.0A patent/CN113983146B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100253005A1 (en) * | 2009-04-03 | 2010-10-07 | Liarakos Nicholas P | Seal for oil-free rotary displacement compressor |
| CN102042367A (en) * | 2009-10-26 | 2011-05-04 | 赫斯默(上海)电子科技有限公司 | Parallel output helical gear reducer |
| CN201789372U (en) * | 2010-04-16 | 2011-04-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Parallel shaft gear speed reducer integrated with motor |
| CN202301762U (en) * | 2011-09-30 | 2012-07-04 | 佛山市星光传动机械有限公司 | Improved speed reducer |
| CN102797795A (en) * | 2012-08-02 | 2012-11-28 | 完颜学明 | Dual-shaft multistage speed reducer |
| CN203948570U (en) * | 2014-06-28 | 2014-11-19 | 浙江汇鑫传动机械有限公司 | The rolling mill speed reducer that a kind of transmission stability is good |
| CN208565443U (en) * | 2018-05-18 | 2019-03-01 | 杭州威煌减速机有限公司 | Metallurgical ceramic machinery helical gear worm decelerating machine |
| CN209539987U (en) * | 2018-12-27 | 2019-10-25 | 扬州高力机械有限公司 | A kind of speed reducer inversion type axle sealing structure |
| CN211924855U (en) * | 2020-03-23 | 2020-11-13 | 李俊丽 | Waterproof gear box |
| CN213270893U (en) * | 2020-09-16 | 2021-05-25 | 天津巨刚减速机制造有限公司 | Multistage gear drive speed reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111344A (en) * | 2022-08-26 | 2022-09-27 | 江苏南江减速机有限公司 | High-strength speed reducer casing for new energy automobile |
| CN115111344B (en) * | 2022-08-26 | 2023-01-03 | 江苏南江减速机有限公司 | High-strength speed reducer casing for new energy automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113983146B (en) | 2024-07-02 |
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