CN102153025B - Winding mechanism - Google Patents

Winding mechanism Download PDF

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Publication number
CN102153025B
CN102153025B CN2011100843615A CN201110084361A CN102153025B CN 102153025 B CN102153025 B CN 102153025B CN 2011100843615 A CN2011100843615 A CN 2011100843615A CN 201110084361 A CN201110084361 A CN 201110084361A CN 102153025 B CN102153025 B CN 102153025B
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China
Prior art keywords
bearing
gear
speed
main shaft
support
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Expired - Fee Related
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CN2011100843615A
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CN102153025A (en
Inventor
奚国防
蔡尧军
李璐
李德仓
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BEIJING ZHONGXIN TURUI TECHNOLOGY CO LTD
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BEIJING ZHONGXIN TURUI TECHNOLOGY CO LTD
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Publication of CN102153025A publication Critical patent/CN102153025A/en
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Abstract

The invention discloses a winding mechanism comprising a winding drum (3), a power mechanism (1), a speed reduction mechanism (2) and an external bracket, wherein the power mechanism (1) and the speed reduction mechanism (2) are arranged in the winding drum (3) and are connected with the winding drum (3) by bolts; the power mechanism (1) is provided with a main shaft (12); and the winding drum (3), the power mechanism (1), the speed reduction mechanism (2), and the external bracket are connected with the main shaft (12) by fastening screws. The winding mechanism can reduce the energy loss of the power mechanism (1) and the speed reduction mechanism (2) during the middle processes, decrease the rope tangling phenomenon of the winding drum (3), so as to effectively protect steel wire ropes and greatly prolong the service life; and the power mechanism (1), the speed reduction mechanism (2) and the winding drum (3) are combined together organically, therefore, the volume of the winding mechanism is greatly reduced.

Description

A kind of hoisting mechanism
Technical field
Patent of the present invention belongs to the wind turbine equipment field, is specifically related to a kind of wind power generating set maintenance crane hoisting mechanism.
Background technology
At present domestic and international most of wind-powered electricity generation units maintenance all adopts walking dolly to join ring-chain hoist with crane, and this kind structure is subjected to the engine room inside space constraint, can not be widely used, and ring-chain hoist mostly is greatly imported product, and cost is high and keep in repair loaded down with trivial details.In existing hoisting mechanism, actuating unit, speed reduction gearing and cable drum do not organically combine into whole, and there is certain energy loss in pilot process, and structure and performance do not reach optimized configuration.
Summary of the invention
The technical matters that (one) will solve
The technical matters that the present invention mainly solves:
The first, reduce the energy loss that actuating unit and speed reduction gearing pilot process exist; Dwindle the volume of hoisting mechanism;
The second, reduce reel disorder cable phenomenon, effectively protect steel rope, improve service life of steel wire rope;
Three, reduce the winch impact load of moment to steel rope and arm that hoist.
(2) technical scheme
For solving above-mentioned the first technical matters, a kind of hoisting mechanism is provided, comprise reel (3), actuating unit (1), speed reduction gearing (2) and outside support;
Described actuating unit (1) and described speed reduction gearing (2) are located in reel (3), and be with bolts with described reel (3);
Described actuating unit (1) is provided with main shaft (12);
Described reel (3), actuating unit (1), speed reduction gearing (2) adopt holding screw to be connected with described main shaft (12) with described outside support.
Further, described actuating unit (1) also comprises motor (11) and gear (13);
Described main shaft (12) is through motor (11), form whole with motor (11), one end of described main shaft (12) is provided with the first flat key groove (14) and the second flat key groove (15), and described gear (13) is fixed on main shaft (12).
Further, described speed reduction gearing (2) comprises one-level planetary gear speed reducing mechanism (21), secondary planet speed reduction gearing (22);
Described one-level planetary gear speed reducing mechanism (21) one ends are provided with external toothing, are connected with a joggle by gear with secondary planet speed reduction gearing (22).
Further, described one-level planetary gear speed reducing mechanism (21) comprises primary speed-down satellite gear (211), the first support (212), the first bearing pin (213), primary speed-down gear ring (214), the first flat key (215), clutch shaft bearing (216);
Gear (13) engagement in described primary speed-down satellite gear (211) and actuating unit (1), fixing by the first bearing pin (213) with described the first support (212), described the first support (212) adopts the first flat key (215) to be connected with described main shaft (12), described primary speed-down satellite gear (211) and described primary speed-down gear ring (214) engagement, described primary speed-down gear ring (214) is fixed on main shaft (12) by described clutch shaft bearing (216) with the first support (212).
Further, described one-level planetary gear speed reducing mechanism (21) comprises three identical primary speed-down satellite gears (211).
Further, described secondary planet speed reduction gearing (22) comprises double reduction satellite gear (221), the second support (222), the second bearing pin (223), double reduction gear ring (224), the second flat key (225), the second bearing (226);
Described double reduction satellite gear (221) meshes with the external toothing of described one-level planetary gear speed reducing mechanism, external toothing one end of described primary speed-down gear ring (214) adopts described the second bearing (226) to be fixed on main shaft (12), double reduction satellite gear (221) is fixing by the second bearing pin (223) with the second support (222), the second support (222) adopts the second flat key (225) to be connected with main shaft (12), double reduction satellite gear (221) and double reduction gear ring (224) engagement.
Further, described secondary planet speed reduction gearing (22) comprises three identical double reduction satellite gears (221).
Further, reel (3) comprises spool body (31), the first end cap (32), the second end cap (33), clutch shaft bearing lid (34), the second bearing cap shim (35), the 3rd bearing (36), the 4th bearing (37);
One end of described spool body and the first end cap (32) are with bolts, and the other end and the second end cap (33) are with bolts;
Described the second end cap (33) is bolted with secondary planet speed reduction gearing (22);
One side of described the 4th bearing (37) is double reduction gear ring (224) fixedly, positions by the second bearing cap shim (35);
Described the first end cap (32) is with bolts with clutch shaft bearing lid (34), and described clutch shaft bearing lid (34) is positioned at the 3rd bearing (36) on described main shaft (12).
For solving above-mentioned the second technical matters, spool body (31) outside face has single fold line grooves.
Further, outside support comprises the first outside support (4), the second outside support (5);
Described the first outside support (4) adopts holding screw to be fixed on described main shaft (12) with described the second outside support (5).
For solving above-mentioned the 3rd technical matters, described motor (11) is DC machine.
(3) beneficial effect
A kind of hoisting mechanism that patent of the present invention provides, wherein speed reduction gearing organically combines into integral body with actuating unit, can effectively reduce the energy loss of pilot process; Simultaneously actuating unit, speed reduction gearing and cable drum are integrated, namely reel as the shell of actuating unit and speed reduction gearing, can dwindle the volume of hoisting mechanism widely, has also further alleviated the weight of hoisting mechanism self.
Because the wire rope roll tube outer surface has single fold line grooves, be single broken line reel of present world advanced person, can protect steel rope by actv., prevent the appearance of disorder cable phenomenon, is greatly improved the service life of steel rope.
Actuating unit adopts DC machine simultaneously, can realize that stepless change starts, and reduces the impact load of moment to steel rope and arm that hoist, and DC machine can realize many speed operations by control, namely unloaded different with load speed, and the DC machine maintenance is easy, greatly promotes the work efficiency of maintenance.
Description of drawings
Fig. 1 is the schematic diagram of patent hoisting mechanism of the present invention;
Fig. 2 is patent wind power generating set maintenance crane actuating unit schematic diagram of the present invention;
Fig. 3 is patent wind power generating set maintenance crane speed reduction gearing schematic diagram of the present invention;
Fig. 4 is patent wind power generating set maintenance crane reel structure schematic diagram of the present invention;
Wherein, 1: actuating unit; 11: motor; 12: main shaft; 13: gear; 14: the first flat key grooves; 15: the second flat key grooves;
2: speed reduction gearing; 21: the one-level planetary gear speed reducing mechanism; 211: the primary speed-down satellite gear; 212: the first supports; 213: the first bearing pins; 214: the primary speed-down gear ring; 215: the first flat keys; 216: clutch shaft bearing;
22: the level planetary gear speed reducing mechanism; 221: level reduction planetary wheel; 222: the second supports; 223: the second bearing pins; 224: the level reduction gear ring; 225: the second flat keys; 226: the second bearings;
3: reel; 31: spool body; 32: the first end caps; 33: the second end caps; 34: the clutch shaft bearing lid; 35: the second bearing cap shims; 36: the three bearings; 37: the four bearings;
4: the first outside supports; 5: the second outside supports.
The specific embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Should be appreciated that following examples only are used for explaining the present invention, but be not used for limiting the scope of the invention.
Please refer to shown in Fig. 1 to 4, it is the structural representation of hoisting mechanism and each component part thereof in the embodiment of the present invention.
A kind of maintaining cranes of generator sets hoisting mechanism, comprise reel 3, actuating unit 1, speed reduction gearing 2, outside support, actuating unit 1 and speed reduction gearing 2 are located in reel 3, with bolts with reel 3, actuating unit 1 is provided with main shaft 12, and reel 3, actuating unit 1, speed reduction gearing 2 adopt holding screw to be connected with main shaft 12 with outside support.Hoisting mechanism provided by the invention is due to reel, actuating unit, and the speed reduction gearing actv. is set together, and can reduce the energy loss that exists in pilot process by actv., and can greatly dwindle the volume of hoisting mechanism.
In the embodiment of the present invention, actuating unit 1 comprises motor 11, main shaft 12 and gear 13, main shaft 12 is through motor 11, form whole with motor 11, one end of main shaft 12 is provided with the first flat key groove 14 and the second flat key groove 15, the first flat key grooves 14 are connected with the first support 212, and the second flat key groove 15 is connected with the second support 222, motor 11 has gear 13 with the end cover that main shaft 12 is fixed, and gear 13 is fixed on motor 11 1 sides.
Described motor (11) is DC machine.The preferred DC machine of the motor that relates in the present invention because DC machine its have good speed adjusting performance, in the occasion that many speed adjusting performances are had relatively high expectations, be used widely and stable; The speed adjustable range of DC motor is broad, and speed regulation characteristics is level and smooth; DC motor overload capacity is stronger, and heat is moving and braking torque is larger; And the requirement to motor starting: (1) starting current is little; (2) starting torque wants large; (3) starting equipment is easy to be reliable.Certainly the present invention also can use alternating current dynamo, and some possess good speed adjusting performance such as the alternating current dynamo of the vector control function AC converter that adopts etc., stable motor all can be used for the present invention.
Further, speed reduction gearing 2 comprises one-level planetary gear speed reducing mechanism 21, secondary planet speed reduction gearing 22, and one-level planetary gear speed reducing mechanism 21 1 ends are provided with external toothing, is connected with a joggle by gear 13 with secondary planet speed reduction gearing 22.The available speed reduction gearing of the present invention can be also helical gear reducer (comprising parallel shafts helical gear reducer, worm reducer, conic reducer etc.), epicyclic reduction gear, planet-cycloid reducer, worm type of reduction gearing, planetary friction-type stepless variable speed mechanical device.Should select corresponding speed reduction gearing according to the operating mode of reality, consider that epicyclic reduction gear is little, lightweight with respect to other retarder volumes, load-carrying capacity is high, long service life, smooth running, and noise is low.Have power dividing, the private characteristic of multiple tooth engagement, preferred epicyclic reduction gear.In the present embodiment, the epicyclic reduction gear of speed reduction gearing should become secondary or triple reduction gear according to the transmitting ratio Demand Design of reality.
Taked the double reduction structure in the present embodiment.One-level planetary gear speed reducing mechanism 21 comprises primary speed-down satellite gear 211, the first support 212, the first bearing pin 213, primary speed-down gear ring 214, the first flat key 215, gear 13 engagements in primary speed-down satellite gear 211 and actuating unit 1, fixing by the first bearing pin 213 with the first support 212, the first support 212 adopts the first flat key 215 to be connected with main shaft 12, primary speed-down satellite gear 211 and 214 engagements of primary speed-down gear ring, primary speed-down gear ring 214 and the first support 212 are fixed on main shaft 12 by clutch shaft bearing 216.
One-level planetary gear speed reducing mechanism 21 comprises three identical primary speed-down satellite gears 211.
Secondary planet speed reduction gearing 22 comprises double reduction satellite gear 221, the second support 222, the second bearing pin 223, double reduction gear ring 224, the second flat key 225, double reduction satellite gear 221 and 214 engagements of primary speed-down gear ring, one end of primary speed-down gear ring 214 adopts the second bearing 226 to be fixed on main shaft 12, double reduction satellite gear 221 and the second support 222 are fixing by the second bearing pin 223, the second support 222 adopts the second flat key 225 to be connected with main shaft 12, double reduction satellite gear 221 and 224 engagements of double reduction gear ring.
Secondary planet speed reduction gearing 22 comprises three identical double reduction satellite gears 221.
reel 3 comprises spool body 31, the first end cap 32, the second end cap 33, clutch shaft bearing lid 34, the second bearing cap shim 35, the 3rd bearing 36, the 4th bearing 37, one end of spool body 31 and the first end cap 32 are with bolts, the other end and the second end cap 33 are with bolts, the second end cap 33 is crossed bolt with double reduction gear ring 224 and is connected, one side of the 4th bearing 37 is secondary planet speed reduction gearing 22 fixedly, opposite side positions by the second bearing cap shim 35, the first end cap 32 is with bolts with clutch shaft bearing lid 34, clutch shaft bearing lid 34 is positioned at the 3rd bearing 36 on main shaft 12.
Spool body 31 outside faces have single fold line grooves.The reel that single fold line grooves is arranged that the present invention selects can be protected steel rope by actv., prevents the appearance of disorder cable phenomenon, and is greatly improved the service life of steel rope.Also single drum with fold line grooves can be replaced with the dual slope grooving in the present invention, but due to single fold line grooves be more suitable for than dual slope rope groove drum multilaminate coiled, multilaminate coiled to more than three layers particularly, the reel of the preferred single fold line grooves of the present invention.Described single fold line grooves can be the processing of direct one on described reel 31 surfaces, can be also single fold line grooves by process Installation such as welding on ganoid reel 31 surfaces.
Outside support comprises that the first outside support 4, the second outside support 5, the first outside supports 4 and the second outside support 5 adopt holding screw to be fixed on main shaft 12.
As can be seen from the above embodiments, a kind of hoisting mechanism that patent of the present invention provides, wherein speed reduction gearing organically combines into integral body with actuating unit, can effectively reduce the energy loss of pilot process; Simultaneously actuating unit, speed reduction gearing and cable drum are integrated, namely reel as the shell of actuating unit and speed reduction gearing, can dwindle the volume of hoisting mechanism widely, has also further alleviated the weight of hoisting mechanism self.
Because the wire rope roll tube outer surface has single fold line grooves, be single broken line reel of present world advanced person, can protect steel rope by actv., prevent the appearance of disorder cable phenomenon, is greatly improved the service life of steel rope.
Actuating unit adopts DC machine simultaneously, can realize that stepless change starts, and reduces the impact load of moment to steel rope and arm that hoist, and DC machine can realize many speed operations by control, namely unloaded different with load speed, and the DC machine maintenance is easy, greatly promotes the work efficiency of maintenance.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.

Claims (8)

1. a hoisting mechanism, is characterized in that, comprises reel (3), actuating unit (1), speed reduction gearing (2) and outside support;
Described actuating unit (1) and described speed reduction gearing (2) are located in reel (3), and be with bolts with described reel (3);
Described actuating unit (1) is provided with main shaft (12);
Described reel (3), actuating unit (1), speed reduction gearing (2) adopt holding screw to be connected with described main shaft (12) with described outside support;
Described speed reduction gearing (2) comprises one-level planetary gear speed reducing mechanism (21), secondary planet speed reduction gearing (22); Described one-level planetary gear speed reducing mechanism (21) one ends are provided with external toothing, are connected with a joggle by tooth with secondary planet speed reduction gearing (22);
Described one-level planetary gear speed reducing mechanism (21) also comprises primary speed-down satellite gear (211), the first support (212), the first bearing pin (213), primary speed-down gear ring (214), the first flat key (215), clutch shaft bearing (216);
Gear (13) engagement in described primary speed-down satellite gear (211) and actuating unit (1), fixing by the first bearing pin (213) with described the first support (212), described the first support (212) adopts the first flat key (215) to be connected with described main shaft (12), described primary speed-down satellite gear (211) and described primary speed-down gear ring (214) engagement, described primary speed-down gear ring (214) is fixed on main shaft (12) by described clutch shaft bearing (216) with the first support (212);
Described secondary planet speed reduction gearing (22) comprises double reduction satellite gear (221), the second support (222), the second bearing pin (223), double reduction gear ring (224), the second flat key (225), the second bearing (226);
Described double reduction satellite gear (221) meshes with the external toothing of described one-level planetary gear speed reducing mechanism, external toothing one end of described one-level planetary gear speed reducing mechanism (21) adopts described the second bearing (226) to be fixed on main shaft (12), double reduction satellite gear (221) is fixing by the second bearing pin (223) with the second support (222), the second support (222) adopts the second flat key (225) to be connected with main shaft (12), double reduction satellite gear (221) and double reduction gear ring (224) engagement.
2. hoisting mechanism according to claim 1, is characterized in that, described actuating unit (1) also comprises motor (11) and gear (13);
Described main shaft (12) forms integral body through motor (11) with motor (11), and an end of described main shaft (12) is provided with the first flat key groove (14) and the second flat key groove (15), and described gear (13) is fixed on main shaft (12).
3. hoisting mechanism according to claim 1, is characterized in that, described one-level planetary gear speed reducing mechanism (21) comprises three identical primary speed-down satellite gears (211).
4. hoisting mechanism according to claim 1, is characterized in that, described secondary planet speed reduction gearing (22) comprises three identical double reduction satellite gears (221).
5. hoisting mechanism according to claim 1, it is characterized in that, reel (3) comprises spool body (31), the first end cap (32), the second end cap (33), clutch shaft bearing lid (34), the second bearing cap shim (35), the 3rd bearing (36), the 4th bearing (37);
One end of described spool body and the first end cap (32) are with bolts, and the other end and the second end cap (33) are with bolts;
Described the second end cap (33) is bolted with secondary planet speed reduction gearing (22);
One side of described the 4th bearing (37) is double reduction gear ring (224) fixedly, and opposite side positions by the second bearing cap shim (35);
Described the first end cap (32) is with bolts with clutch shaft bearing lid (34), and described clutch shaft bearing lid (34) is positioned at the 3rd bearing (36) on described main shaft (12).
6. the described hoisting mechanism of according to claim 1 to 5 any one claim, is characterized in that, spool body (31) outside face has single fold line grooves.
7. hoisting mechanism according to claim 1, is characterized in that, outside support comprises the first outside support (4), the second outside support (5);
Described the first outside support (4) adopts holding screw to be fixed on described main shaft (12) with described the second outside support (5).
8. hoisting mechanism according to claim 2, is characterized in that, described motor (11) is DC machine.
CN2011100843615A 2011-04-06 2011-04-06 Winding mechanism Expired - Fee Related CN102153025B (en)

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CN102153025B true CN102153025B (en) 2013-06-05

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103626064B (en) * 2013-12-16 2016-02-03 中联重科股份有限公司 Winding mechanism and winding drum thereof
CN103896172B (en) * 2014-04-16 2017-01-04 常州市榆轩环境设备有限公司 The traction apparatus of power plant indirect air cooling tower heat radiator fin cleaning machine
CN105016227A (en) * 2015-07-31 2015-11-04 上海振华重工(集团)股份有限公司 Traditional drilling drawwork
CN106882714A (en) * 2017-04-27 2017-06-23 宝钢工程技术集团有限公司 Hoist engine and hoisting system
CN112299272A (en) * 2020-11-23 2021-02-02 浙江永天机电制造有限公司 Portable embedded direct current electric block
CN115215242B (en) * 2022-09-19 2023-04-18 杭州未名信科科技有限公司 Winch gradient brake power system of intelligent tower crane and intelligent tower crane
CN115258991B (en) * 2022-09-19 2023-01-17 杭州未名信科科技有限公司 A hoist power module assembly and intelligent tower crane for intelligent tower crane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110744A (en) * 1967-03-21 1968-04-24 R & W Hannaford Pty Ltd Improvements in and relating to a motorised pulley or drum
US5184807A (en) * 1990-01-18 1993-02-09 Df Podem Electric hoist including a planetary reduction gear housing disposed within a hoist drum
CN2581414Y (en) * 2002-05-13 2003-10-22 王积正 Wire rope drum with driving mechanism therein
CN2887827Y (en) * 2005-12-01 2007-04-11 钟荣光 Built-in coaxial double-brake hoisting drum

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2009011556A (en) * 2007-04-27 2009-11-11 Nat Oilwell Varco Lp Improvements in or relating to drawworks.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110744A (en) * 1967-03-21 1968-04-24 R & W Hannaford Pty Ltd Improvements in and relating to a motorised pulley or drum
US5184807A (en) * 1990-01-18 1993-02-09 Df Podem Electric hoist including a planetary reduction gear housing disposed within a hoist drum
CN2581414Y (en) * 2002-05-13 2003-10-22 王积正 Wire rope drum with driving mechanism therein
CN2887827Y (en) * 2005-12-01 2007-04-11 钟荣光 Built-in coaxial double-brake hoisting drum

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