CN109534207B - Light-weight electric hoist with safety protection - Google Patents
Light-weight electric hoist with safety protection Download PDFInfo
- Publication number
- CN109534207B CN109534207B CN201910055980.8A CN201910055980A CN109534207B CN 109534207 B CN109534207 B CN 109534207B CN 201910055980 A CN201910055980 A CN 201910055980A CN 109534207 B CN109534207 B CN 109534207B
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- gear
- large gear
- shell
- motor
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- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000001503 joint Anatomy 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
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/20—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing
- B66D3/22—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing with variable-speed gearings between driving motor and drum or barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/26—Other details, e.g. housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/32—Detent devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a light-weight electric hoist with safety protection, which comprises a shell, a motor, a speed reducing mechanism and a chain wheel, wherein a box body is arranged outside the shell, the shell comprises a motor shell, a chain wheel shell and a gear box, the motor shell, the chain wheel shell and the gear box are separately installed and fixed, a shaft sleeve piece and a transmission shaft are arranged in the gear box, one end of the shaft sleeve piece is provided with a large gear I in an interference press mode, an output shaft is arranged in the shaft sleeve piece, the output shaft is in driving connection with a driving shaft on the motor, one side, close to the large gear I, of the output shaft is sleeved with a small gear I, a large gear II, a small gear II and a large gear III, a straight tooth key is integrally arranged on the transmission shaft, a large gear IV, a small gear III, a large gear V, a small gear IV and a bevel gear are installed on the transmission shaft, and are installed through meshing of all stages of gears.
Description
Technical Field
The invention belongs to the technical field of electric hoists, and particularly relates to a light-weight electric hoist with safety protection.
Background
At present, the electric hoist is a hoisting machine which is very widely applied, and is applicable to different requirements of hoisting weight according to the specification. Along with the continuous development of technology, the design of small-size electric hoist is more and more emphasized, because small-size electric hoist that uses in the past, its box all adopts simple great structure of volume, and its intensity and rigidity are restricted, and the pulling force that bears is less, and the usability is relatively poor. For the internal structural design of the gear box, the existing gear transmission structure is too simple, and can achieve a transmission effect, but the transmission stability is poor, and the structure is also not compact enough, so that the whole gear box is large, the load performance of transmission motion is poor, and the lifting capacity is poor. In the actual operation process, the object lifting overload or the object lifting top can happen, due to the negligence of operators, the problem that the machine is not stopped in time can occur, when overload happens, the motor can be burnt out, the chain wheel and other parts are damaged, and great potential safety hazards exist, so that improvement is necessary.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a light-weight electric hoist with safety protection, which has the characteristics of light weight, compact structure, high overall strength, large bearing tension, high transmission stability, strong lifting capacity, strong braking capacity, no damage to protection components, free falling prevention of load and safety and reliability guarantee of the electric hoist.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a lightweight electric block with safety protection, includes casing, motor, reduction gears and sprocket, its characterized in that: the motor is installed in the motor shell, the speed reducing mechanism is arranged in the gear box, a shaft sleeve and a transmission shaft are arranged in the gear box, an inner spline is arranged on an inner ring of the sprocket, an external spline matched with the inner spline is arranged outside the shaft sleeve, a large gear I is arranged at one end of the shaft sleeve in an interference press fit mode, an output shaft is arranged in the shaft sleeve, the output shaft is in driving connection with a driving shaft on the motor, a pinion I, a large gear II, a small gear II and a large gear III are sleeved on one side, close to the large gear I, of the output shaft respectively, a straight-tooth key is integrally arranged on the transmission shaft, a large gear IV, a small gear III, a large gear V, a small gear IV and a bevel gear are installed on the transmission shaft, one end of the output shaft is provided with a bevel gear key, the large gear I is in engagement with the straight-tooth key on the transmission shaft, the large gear I is in engagement with the bevel gear IV, the small gear is in press fit with the small gear IV, the large gear II is in engagement with the bevel gear III, the large gear II is in one-way press fit with the small gear IV, the large gear III is in rotation with the bevel gear III, the large gear III is integrally arranged on the bevel gear III, the large gear IV is in the one-way, the bevel gear III is in the one-way, the large gear III is in the engagement with the bevel gear III is in the one-tooth key, and the large gear III is in rotation, and the one-way, and the large gear III is in the bevel gear III is in rotation with the bevel gear III, and bearings are arranged on the central inner rings of the pinion I, the pinion II, the pinion III and the pinion IV.
Preferably, the motor is provided with a clamping step and a flange plate, an annular ring is arranged in the motor shell, the clamping step is arranged in the annular ring in a butt joint mode, the flange plate is provided with a plurality of bolt holes, and the motor is fixedly connected with the motor shell through the bolt holes in the flange plate.
Preferably, the motor shell is provided with a plurality of radiating holes, the box body is provided with a radiating groove, and the radiating groove is communicated with the radiating holes on the left end face of the motor shell.
Preferably, the sprocket housing comprises a sprocket half-shell I and a sprocket half-shell II, wherein the sprocket half-shell I is fixed on the sprocket half-shell II by means of threaded connection.
Preferably, the chain wheel shell is provided with a chain guide hole I, and the box body is provided with a chain guide hole II corresponding to the chain guide hole I.
Preferably, the gear box is provided with a mounting hole, and the gear box is fixed with the sprocket shell through a mounting bolt on the mounting hole.
Preferably, the pinion I, the pinion II, the pinion III and the pinion IV are mounted in an interference fit manner.
Preferably, the one-way bearing is a one-way needle bearing, and a bearing seat of the one-way bearing is made of bearing steel.
By adopting the structure, compared with the prior art, the invention has the advantages that: the invention has reasonable and ingenious structure, is installed by adopting split type among the motor shell, the chain wheel shell and the gear box, is consolidated by the box body, has compact overall structure and small volume, achieves light weight, is convenient to process, is quite convenient to assemble, disassemble and maintain, has better strength and rigidity, larger bearing tensile force and better service performance by the arrangement of the shell and the box body; through the meshing installation of all stages of gears, the motor drives the output shaft, the output shaft drives the helical gear, because pinion IV and helical gear are integrally rotated and arranged, pinion IV drives the large gear III, because the large gear III and pinion II are integrally rotated and arranged, so that pinion II drives the large gear V, because the large gear V and pinion III are integrally rotated and arranged, so that pinion I drives the large gear IV, the large gear IV is in interference press fit on the transmission shaft, so that the transmission shaft and the large gear IV are integrally rotated, and a straight tooth key on the transmission shaft drives the large gear I, and because the large gear I and the shaft sleeve piece are integrally rotated and arranged, the transmission of a shaft sleeve piece and a sprocket is achieved. And install one-way bearing on the output shaft in the axle sleeve spare, this one-way bearing is higher than general clutch effect, and the part is less, and it is better to reach the braking effect, and under the condition that the article lifts by crane overload or article lifts by crane and rises to the top, can be fine brake through one-way bearing, prevents that the load from freely falling down, guarantees electric block's fail safe nature.
Drawings
FIG. 1 is a schematic diagram of a split construction of the present invention;
FIG. 2 is a schematic view of the structure of the housing of the present invention;
FIG. 3 is a schematic view of the reduction mechanism in the gearbox of the present invention;
FIG. 4 is a schematic view of the mounting structure of the sprocket and bushing member of the present invention;
FIG. 5 is a schematic view of the structure of the bottom of the case of the present invention;
in the figure: 10. a housing; 11. a motor; 12. a sprocket; 13. a case; 14. a motor housing; 15. a sprocket housing; 151. sprocket half-shell I; 152. sprocket half-shell II; 16. a gear box; 17. a shaft sleeve; 18. a transmission shaft; 19. an internal spline; 20. an external spline; 21. a large gear I; 22. an output shaft; 23. a drive shaft; 24. pinion I; 25. a large gear II; 26. pinion II; 27. a large gear III; 28. a straight tooth key; 29. a large gear IV; 30. pinion III; 31. a large gear V; 32. pinion IV; 33. bevel gear; 34. an inclined tooth key; 35. a step is clamped; 36. a flange plate; 37. an annular ring; 38. bolt holes; 39. a heat radiation hole; 40. a heat sink; 41. a chain guide hole I; 42. a chain guide hole II; 43. and (5) mounting holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a light-weight electric hoist with safety protection comprises a housing 10, a motor 11, a speed reducing mechanism and a sprocket 12, wherein a box 13 is arranged outside the housing 10, the housing 10 comprises a motor housing 14, a sprocket housing 15 and a gear box 16, the motor housing 14, the sprocket housing 15 and the gear box 16 are installed and fixed in a split type, the motor 11 is installed in the motor housing 14, the speed reducing mechanism is arranged in the gear box 16, a shaft sleeve 17 and a transmission shaft 18 are arranged in the gear box 16, an inner spline 19 is arranged on the inner ring of the sprocket 12, an external spline 20 matched with the internal spline 19 is arranged on the outer side of the shaft sleeve 17, a large gear I21 is pressed at one end of the shaft sleeve 17 in an interference manner, an output shaft 22 is installed in the shaft sleeve 17, a driving connection is formed between the output shaft 22 and a driving shaft 23 on the motor 11, one side of the output shaft 22 close to the large gear I21 is respectively sleeved with a small gear I24, a large gear II25, a small gear II26 and a large gear III27, the transmission shaft 18 is integrally provided with a straight-tooth key 28, the transmission shaft 18 is provided with a large gear IV29, a small gear III30, a large gear V31, a small gear IV32 and a bevel gear 33, the large gear IV29 is pressed on the transmission shaft 18 in an interference manner, one end of the output shaft 22 is provided with a bevel gear key 34, the large gear I21 is meshed with the straight-tooth key 28 on the transmission shaft 18, the small gear I24 is meshed with the large gear IV29, the large gear II25 is meshed with the small gear III30, the small gear II26 is meshed with the large gear V31, the large gear III27 is meshed with the small gear IV32, the bevel gear 33 is meshed with the bevel gear key 34 of the output shaft 22, the small gear I24 is pressed on the large gear II25 in an integral rotation manner, the small gear II26 is pressed on the large gear III27 in an integral rotation manner, the small gear III30 is pressed on the large gear V31 in an integral rotation manner, pinion IV32 is press-fitted on helical gear 33 and integrally rotatably arranged, a one-way bearing is mounted on output shaft 22 in sleeve member 17, and bearings are mounted on the central inner races of pinion I24, pinion II25, pinion III30 and pinion IV 32.
In the embodiment, the structure is reasonable and ingenious, the motor shell 14, the chain wheel shell 15 and the gear box 16 are installed in a split mode, the motor shell is consolidated through the box 13, the whole structure is compact, the size is small, the light weight is achieved, the processing is convenient, the disassembly and the maintenance are very convenient, the strength and the rigidity are good, the bearing tension is large, and the usability is good due to the arrangement of the shell 10 and the box 13; through the meshing installation of all stages of gears, the motor 11 drives the output shaft 22, the output shaft 22 drives the bevel gear 33, the pinion IV32 drives the large gear III27 due to the fact that the pinion IV32 and the bevel gear 33 are integrally and rotatably arranged, the pinion II26 drives the large gear V31 due to the fact that the large gear III27 and the pinion II26 are integrally and rotatably arranged, the pinion III30 drives the large gear II25 due to the fact that the large gear V31 and the pinion III30 are integrally and rotatably arranged, the pinion I24 drives the large gear IV29 due to the fact that the large gear II25 and the pinion I24 are integrally and rotatably arranged, the large gear IV29 is pressed on the transmission shaft 18 in an interference manner, the transmission shaft 18 and the large gear IV29 are integrally rotated, the straight tooth key 28 on the transmission shaft 18 drives the large gear I21 again due to the fact that the large gear I21 and the shaft sleeve piece 17 are integrally and rotatably arranged, and the transmission of the sprocket 12 is achieved, the design of the speed reducing mechanism is ingenious, the structure is compact, the transmission stability is very high, the load performance of transmission motion is high, the lifting capacity is strong, and the service life is long; and install the one-way bearing on the output shaft 22 in the axle sleeve piece 17, this one-way bearing is higher than general clutch effect, and the part is less, and it is better to reach the braking effect, and under the condition that the article lifts by crane overload or article lifts by crane and rises to the top, can be fine brake through the one-way bearing, prevents that the load from freely falling down, guarantees electric block's fail safe nature.
Specifically, the shell 10 is made of firm ZL101A aluminum alloy, adopts high-purity raw materials, has low content of various impurities, is added with trace elements to refine tissues, has high mechanical property, excellent casting performance, strong corrosion resistance and good high and low temperature resistance. The motor 11 is an 800W motor, one minute is 15000 revolutions, and the motor 11 is used for the small electric hoist, and has strong use load capacity and excellent use effect.
Further, a clamping step 35 and a flange plate 36 are arranged on the motor 11, an annular ring 37 is arranged in the motor shell 14, the clamping step 35 is arranged in the annular ring 37 in an abutting mode, a plurality of bolt holes 38 are formed in the flange plate 36, and the motor 11 is fixedly connected with the motor shell 14 through the bolt holes 38 in the flange plate 36.
In this embodiment, the annular ring 37 on the motor housing 14 is used to position the clamping step 35 on the motor 11, and then the bolt hole 38 on the flange 36 is fixedly connected with the motor housing 14, so that the installation and positioning are accurate, the motor 11 is stably installed, and the vibration noise is reduced.
Further, the motor housing 14 is provided with a plurality of heat dissipation holes 39, the case 13 is provided with a heat dissipation groove 40, and the heat dissipation groove 40 is communicated with the heat dissipation holes 39 on the left end face of the motor housing 14.
In this embodiment, the heat generated by the operation of the motor 11 is discharged from the heat dissipation holes 39, and then is discharged from the heat dissipation grooves 40 on the case 13, so that the operation of the motor 11 is ensured, and the heat dissipation effect is good.
Further, the sprocket housing 15 includes a sprocket half-shell I151 and a sprocket half-shell II152, and the sprocket half-shell I151 is fixed to the sprocket half-shell II152 by screwing.
In this embodiment, the sprocket housing 15 adopts such a structure, and is easy to assemble and disassemble.
Further, the sprocket housing 15 is provided with a chain guide hole I41, and the case is provided with a chain guide hole II42 corresponding to the chain guide hole I41.
In this embodiment, the guide holes I41 and II42 are used for chain transmission on the sprocket 12.
Further, the gear case 16 is provided with a mounting hole 43, and the gear case 16 is fixed to the sprocket housing 15 by mounting a bolt to the mounting hole 43.
In the present embodiment, the gear case 16 is fixed to the sprocket housing 15 by mounting bolts on the mounting holes 43, and specifically, the mounting holes 43 are three and uniformly distributed, so that the mounting is stable.
Further, the pinion I24, the pinion II25, the pinion III30 and the pinion IV32 are mounted in an interference fit manner.
In the embodiment, the interference fit installation mode is simple, the installation is firm, the centering performance is good, the bearing capacity is high, and the impact load can be borne.
Further, the one-way bearing is a one-way needle bearing, and a bearing seat of the one-way bearing is made of bearing steel.
In this embodiment, the unidirectional bearing can rotate freely in one direction, and the bearing locked in the other direction adopts the unidirectional needle bearing, so that the precision is higher, the structural effect is better, the bearing has good usability, the bearing has the characteristics of high temperature resistance, durability, high rotating speed and low noise, and the bearing steel is made of the bearing steel, so that the bearing has good contact fatigue strength, wear resistance, hardness, rust resistance and the like.
The working principle of the invention is as follows: through the meshing installation of each stage of gears, firstly, the motor 11 is controlled by a remote controller, the motor 11 is started, the motor 11 drives the output shaft 22, the output shaft 22 drives the bevel gear 33, the pinion IV32 drives the large gear III27, the pinion II26 drives the large gear V31, the pinion III30 drives the large gear II25, the pinion I24 drives the large gear IV29, the straight-tooth key 28 on the transmission shaft 18 drives the large gear I21 again, the transmission of the shaft sleeve 17 and the chain wheel 12 is achieved, and the chain is installed on the chain wheel 12, so that the transmission of the chain is achieved. When the object is lifted and overloaded or lifted, the unidirectional bearing on the output shaft 22 can achieve a braking effect on the object, prevent the load from freely falling, and ensure the safety and the reliability of the electric hoist.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a lightweight electric block with safety protection, includes casing, motor, reduction gears and sprocket, its characterized in that: the motor is installed in the motor shell, the speed reducing mechanism is arranged in the gear box, a shaft sleeve and a transmission shaft are arranged in the gear box, an inner spline is arranged on an inner ring of the sprocket, an external spline matched with the inner spline is arranged outside the shaft sleeve, a large gear I is arranged at one end of the shaft sleeve in an interference press fit mode, an output shaft is arranged in the shaft sleeve, the output shaft is in driving connection with a driving shaft on the motor, a pinion I, a large gear II, a small gear II and a large gear III are sleeved on one side, close to the large gear I, of the output shaft respectively, a straight-tooth key is integrally arranged on the transmission shaft, a large gear IV, a small gear III, a large gear V, a small gear IV and a bevel gear are installed on the transmission shaft, one end of the output shaft is provided with a bevel gear key, the large gear I is in engagement with the straight-tooth key on the transmission shaft, the large gear I is in engagement with the bevel gear IV, the small gear is in press fit with the small gear IV, the large gear II is in engagement with the bevel gear III, the large gear II is in one-way press fit with the small gear IV, the large gear III is in rotation with the bevel gear III, the large gear III is integrally arranged on the bevel gear III, the large gear IV is in the one-way, the bevel gear III is in the one-way, the large gear III is in the engagement with the bevel gear III is in the one-tooth key, and the large gear III is in rotation, and the one-way, and the large gear III is in the bevel gear III is in rotation with the bevel gear III, bearings are arranged on the central inner rings of the pinion I, the pinion II, the pinion III and the pinion IV;
the motor is provided with a clamping step and a flange plate, an annular ring is arranged in the motor shell, the clamping step is arranged in the annular ring in an abutting mode, the flange plate is provided with a plurality of bolt holes, and the motor is fixedly connected with the motor shell through the bolt holes in the flange plate;
the motor shell is provided with a plurality of radiating holes, the box body is provided with a radiating groove, and the radiating groove is communicated with the radiating holes on the left end face of the motor shell;
the chain wheel shell comprises a chain wheel half shell I and a chain wheel half shell II, and the chain wheel half shell I is fixed on the chain wheel half shell II in a threaded connection mode;
the chain wheel shell is provided with a chain guide hole I, and the box body is provided with a chain guide hole II corresponding to the chain guide hole I;
the gear box is provided with a mounting hole, and the gear box is fixed with the sprocket shell through a mounting bolt on the mounting hole;
the pinion I, the pinion II, the pinion III and the pinion IV are arranged in an interference fit manner;
the unidirectional bearing is a unidirectional needle bearing, and a bearing seat of the unidirectional bearing is made of bearing steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055980.8A CN109534207B (en) | 2019-01-22 | 2019-01-22 | Light-weight electric hoist with safety protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055980.8A CN109534207B (en) | 2019-01-22 | 2019-01-22 | Light-weight electric hoist with safety protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109534207A CN109534207A (en) | 2019-03-29 |
| CN109534207B true CN109534207B (en) | 2024-02-23 |
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ID=65837937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910055980.8A Active CN109534207B (en) | 2019-01-22 | 2019-01-22 | Light-weight electric hoist with safety protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109534207B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112357807A (en) * | 2019-04-12 | 2021-02-12 | 浙江冠林机械有限公司 | Four-row ring chain tightener |
| CN116443755B (en) * | 2023-04-25 | 2023-10-20 | 徐州博远传动机械有限公司 | Planet wheel limiting equipment for lifting mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3939976C1 (en) * | 1989-12-02 | 1991-04-11 | Abus Werner Buehne Kg, 5270 Gummersbach, De | Load lifter for small hoist - has impeller vane on DC motor shaft on end facing toward horn gear drive, in order to extract heat generated by motor |
| KR20100124480A (en) * | 2009-05-19 | 2010-11-29 | (주)유티글로벌 | Multi stage automatic transmission |
| CN203568761U (en) * | 2013-09-13 | 2014-04-30 | 诺威起重设备（苏州）有限公司 | Ring chain electric hoist speed reducer device |
| BG111829A (en) * | 2014-09-29 | 2016-04-28 | Петър Карабаджаков | Hoisting mechanism with a multistage reduction gear |
| CN107654624A (en) * | 2017-10-16 | 2018-02-02 | 赤壁市蒲圻起重运输机械有限责任公司 | A kind of fixed Electric Chain Blocks decelerator |
| CN208022629U (en) * | 2017-10-28 | 2018-10-30 | 孝感嘉瑞应用科技开发有限公司 | A kind of lifting deceleration device |
| CN209383306U (en) * | 2019-01-22 | 2019-09-13 | 浙江玥耀起重机械有限公司 | A kind of lightweight electric block with safeguard protection |
-
2019
- 2019-01-22 CN CN201910055980.8A patent/CN109534207B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3939976C1 (en) * | 1989-12-02 | 1991-04-11 | Abus Werner Buehne Kg, 5270 Gummersbach, De | Load lifter for small hoist - has impeller vane on DC motor shaft on end facing toward horn gear drive, in order to extract heat generated by motor |
| KR20100124480A (en) * | 2009-05-19 | 2010-11-29 | (주)유티글로벌 | Multi stage automatic transmission |
| CN203568761U (en) * | 2013-09-13 | 2014-04-30 | 诺威起重设备（苏州）有限公司 | Ring chain electric hoist speed reducer device |
| BG111829A (en) * | 2014-09-29 | 2016-04-28 | Петър Карабаджаков | Hoisting mechanism with a multistage reduction gear |
| CN107654624A (en) * | 2017-10-16 | 2018-02-02 | 赤壁市蒲圻起重运输机械有限责任公司 | A kind of fixed Electric Chain Blocks decelerator |
| CN208022629U (en) * | 2017-10-28 | 2018-10-30 | 孝感嘉瑞应用科技开发有限公司 | A kind of lifting deceleration device |
| CN209383306U (en) * | 2019-01-22 | 2019-09-13 | 浙江玥耀起重机械有限公司 | A kind of lightweight electric block with safeguard protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109534207A (en) | 2019-03-29 |
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Effective date of registration: 20190829 Address after: 317500 Qianlu Street 10-9, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Applicant after: Zhejiang Yueyao Lifting Machinery Co.,Ltd. Address before: 317525 No. 4, 8 blocks, Xiayang Zhangcun 2 District, Daxi Town, Wenling City, Taizhou City, Zhejiang Province Applicant before: ZHEJIANG OUZHIBO LIFTING MACHINERY Co.,Ltd. |
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