CN103991809A - Winch for work boat feeding and discharging - Google Patents
Winch for work boat feeding and discharging Download PDFInfo
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- CN103991809A CN103991809A CN201410200840.2A CN201410200840A CN103991809A CN 103991809 A CN103991809 A CN 103991809A CN 201410200840 A CN201410200840 A CN 201410200840A CN 103991809 A CN103991809 A CN 103991809A
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Abstract
The invention discloses a winch for work boat feeding and discharging. The winch comprises a motor, a speed reducing box, a coiling block, a hand-operated device and a brake device. The motor is connected with the speed reducing box through a motor output shaft, an output shaft of the speed reducing box is connected with the center of the coiling block, and the speed reducing box is provided with the hand-operated device. The brake device comprises a mechanical speed limiting device, a mechanical brake device, a brake shell and an end cover. The brake device is fixedly arranged on the speed reducing box through the brake shell. The mechanical speed limiting device and the mechanical brake device are arranged inside the brake shell, and the end cover is arranged on one side of the brake shell. The winch is simple in structure, safe, reliable and low in cost.
Description
Technical field
The present invention relates to a kind of winch, especially relate to a kind of winch for folding and unfolding jolly boat, belong to mechanical engineering technical field.
Background technology
On a lot of boats and ships, be all equipped with jolly boat, jolly boat carrys out lifting by winch, winch comprises electrical motor, coupler, reduction-box apparatus, reel, electrical motor is connected with reduction-box apparatus by coupler, reduction-box apparatus is connected with reel, electrical motor drives reduction-box apparatus to rotate, and reduction-box apparatus band movable reel rotates, and reel drives jolly boat lifting; When needs stop or can realizing by operation electrical control during reverse operating, the speed that jolly boat rises and declines is identical, can guarantee milder hoisting and decline.
Electrical motor self is with brake gear, this brake gear is to be achieved by electromagnetic force adhesive and spring-force driven dual, therefore losing power supply in emergency circumstances, brake gear locking electrical motor, cannot realize the operation of folding and unfolding jolly boat, if brake gear is opened by manual unit by force, jolly boat will form free falling body state decline, uncontrollable its lowering velocity, jolly boat can not get actv. and controls, and can work the mischief to jolly boat and staff.
Summary of the invention
The object of this invention is to provide a kind of winch for folding and unfolding jolly boat, this winch in the situation that losing power supply, also can safety control jolly boat.
The present invention is achieved by the following technical programs:
A kind of winch for folding and unfolding jolly boat, comprise electrical motor, drop-gear box, reel, manual unit, electrical motor is connected with drop-gear box by its motor output shaft, the output shaft of drop-gear box is connected with the center of reel, on drop-gear box, be also provided with manual unit, manual unit is provided with handle, is also provided with electrical motor brake on electrical motor, also comprise and be provided with brake device, brake device comprises mechanical speed-limit device, mechanical braking device, brake casing, end cap; Brake device is fixedly installed on drop-gear box by brake casing; Brake casing is one end sealing, the unlimited shell part of the other end, machinery speed-limit device, mechanical braking device are arranged on the inside of brake casing, end cap is arranged on the side of opening wide of brake casing, and form an airtight space with brake casing, motor output shaft passes drop-gear box and penetrates in brake casing, is provided with driving key on the cylindrical of the motor output shaft in brake casing;
Machinery speed-limit device comprises brake disc, a pair of pin, a pair of friction gear, brake disc is fixedly installed on motor output shaft by its endoporus, driving key on motor output shaft is arranged in the keyway of brake disc, and drive brake disc to rotate, on the end face of brake disc, be arranged with two pin holes one, a pair of pin is assemblied in respectively in two pin holes one, and its other end all exposes the end face of brake disc, friction gear comprises and flies piece, friction lining one, extension spring, backing pin one, flying piece is that a side is the part of arc surface, its two ends are respectively fixed end and movable end, fixed end is provided with pin hole two, movable end is provided with spring fixed hole, the arc surface that flies piece faces the inwall of brake casing, the piece that flies of a pair of friction gear all passes through the connection corresponding to a pair of pin of its pin hole two, one end of each extension spring is fixedly connected on respectively on each fixed end that flies piece, the other end of each extension spring is connected with the adjacent spring fixed hole that flies piece, thereby form an end to end closed loop, friction lining one symmetry of a pair of friction gear is fixedly installed on the inwall of brake casing, the position of each friction lining one faces each arc surface that flies piece, each backing pin one is fixedly installed on the end face of brake casing, its position is separately positioned on each inner side that flies the movable end of piece,
Mechanical braking device comprises brake hoop, eccentric bushing, bearing, weight, backing pin two; Eccentric bushing is axial workpiece, and its one end is eccentric end, and the other end is to hold with one heart, the cylindrical of eccentric end and endoporus disalignment, the cylindrical of end is coaxial with endoporus with one heart, and eccentric bushing is arranged on by its endoporus on the cylindrical of motor output shaft, and the concentric end of eccentric bushing stretches out the end face of end cap; Bearing is fixedly installed on by its inner ring on the cylindrical of motor output shaft, and the outer ring of bearing is fixedly installed in the endoporus of eccentric end of eccentric bushing; Brake hoop is disk-like accessory, brake hoop is fixedly installed on by its mounting hole on the cylindrical of eccentric end of eccentric bushing, maximum gauge place in the side end face perpendicular to brake hoop is provided with slipper, medial surface and the lateral surface of slipper are arc surface, the medial surface of slipper faces the maximum cylindrical place of brake disc, the medial surface of slipper is fixed with friction lining two, along the maximum outside diameter of the lateral surface of brake hoop, is provided with position-limited trough; Backing pin two is fixedly installed on the inwall of brake casing, and stretch out until in the position-limited trough of brake hoop one end of backing pin two; Weight is arranged on the outside of brake casing, and weight is connected with the concentric end of eccentric bushing by its pipe link, and the lateral surface in pipe link and eccentric bushing connection is provided with a travel switch, and travel switch can control and cut out electrical motor.
Object of the present invention can also further realize by following technical measures.
Aforesaid a kind of winch for folding and unfolding jolly boat, friction lining one is arc structure part, the center of circle of friction lining one is concentric with motor output shaft.
Aforesaid a kind of winch for folding and unfolding jolly boat, when electrical motor does not start, the arc surface that flies piece is concentric with motor output shaft.
Aforesaid a kind of winch for folding and unfolding jolly boat, flies to be provided with gap between the arc surface of piece and friction lining one.
Aforesaid a kind of winch for folding and unfolding jolly boat, is provided with gap between the maximum cylindrical place of friction lining two and brake disc.
Aforesaid a kind of winch for folding and unfolding jolly boat, on the end face of the outside of end cap, be provided with backing pin three and backing pin four, the pipe link of weight is arranged between backing pin three and backing pin four, and weight is controlled between backing pin three and backing pin four around the rotating angle of motor output shaft.
Aforesaid a kind of winch for folding and unfolding jolly boat, weight is greater than or equal to the angle of the position-limited trough of brake hoop around the rotating angle of motor output shaft.
Aforesaid a kind of winch for folding and unfolding jolly boat, is provided with lining one at the pin hole two that flies piece with the junction of pin.
Aforesaid a kind of winch for folding and unfolding jolly boat, is provided with lining two in the junction of eccentric bushing and end cap.
Aforesaid a kind of winch for folding and unfolding jolly boat, is provided with lining three at the cylindrical of eccentric end of eccentric bushing and the junction of the mounting hole of brake hoop.
The present invention sets up a brake device on the basis of original structure, in the situation that electrical motor runs out of steam, jolly boat constantly declines, speed is more and more faster, thereby drive the rotative speed of brake disc more and more faster, fly the centnifugal force that piece is subject to increasing, the arc surface that flies piece will touch friction lining one, thereby reduce the rotative speed of brake disc, force the rotating speed of reel to reduce, thereby reduce the descending speed of jolly boat, and can pass through the brake hoop braking with locked wheels dish of mechanical braking device, jolly boat is not declined; In the situation that electrical motor runs out of steam, in the time of need to rising jolly boat, by rotation manual device, jolly boat is risen, because brake hoop is assemblied on eccentric bushing, brake hoop is only to playing braking action under jolly boat decline situation, draw high the situation bottom braking with locked wheels dish of jolly boat, therefore can rise easily jolly boat, safe and reliable; By brake device is set, can be safely operation element ship easily; The present invention increases brake device on the basis of original mechanism, only needs transformation, without changing winch, has saved cost, and the present invention is simple in structure, easy to use, easy to maintenance.
Advantage and disadvantage of the present invention, the non-limitative illustration by preferred embodiment below is for illustration and explanation, and these embodiment, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the front view of brake device of the present invention and drop-gear box assembling;
Fig. 3 is the front view of brake device of the present invention;
Fig. 4 is the A-A cutaway view of brake device of the present invention;
Fig. 5 is the B-B cutaway view of brake device of the present invention;
Fig. 6 is the weight scheme of installation of brake device of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes electrical motor 6, drop-gear box 7, reel 8, manual unit 9, brake device 5, electrical motor 6 is connected with drop-gear box 7 by its motor output shaft 62, two reels 8 are arranged on respectively on the output shaft of drop-gear box 7 both sides, on the side of drop-gear box 7, be also provided with manual unit 9, manual unit 9 is provided with handle 91, and manual unit 9 is connected with the gear in drop-gear box 7, is also provided with electrical motor brake 61 on electrical motor 6.
As shown in Figure 3, brake device 5 comprises mechanical speed-limit device 1, mechanical braking device 2, brake casing 3, end cap 4; Brake device 5 is fixedly installed on the side of drop-gear box 7 by brake casing 3; Brake casing 3 is left end sealing, the unlimited shell part of right-hand member, machinery speed-limit device 1, mechanical braking device 2 are arranged on the inside of brake casing 3, end cap 4 is fixedly installed in its right end face of brake casing 3, and form an airtight space with brake casing 3, motor output shaft 62 passes drop-gear box 7 and penetrates in brake casing 3, is provided with and drives key 621 on the cylindrical of the motor output shaft 62 in this interval;
As shown in Figure 4, machinery speed-limit device 1 comprises brake disc 11, a pair of pin 12, a pair of friction gear 13, brake disc 11 is the axial workpiece that one end cylindrical is large, one end cylindrical is little, brake disc 11 is fixedly installed on motor output shaft 62 by its endoporus, driving key 621 on motor output shaft 62 is arranged in the keyway 111 of brake disc 11, is arranged with two pin holes 1 on the end face of the large one end of brake disc 11 cylindricals, a pair of pin 12 is assemblied in respectively in two pin holes 1, and its other end all exposes the end face of brake disc 11, friction gear 13 comprises and flies piece 131, friction lining 1, extension spring 133, backing pin 1, flying piece 131 is that a side is the part of arc surface, its two ends are respectively fixed end 1311 and movable end 1312, fixed end 1311 is provided with pin hole 2 1313, movable end 1312 is provided with spring fixed hole 1314, the arc surface 1315 that flies piece 131 faces the inwall of brake casing 3, when electrical motor 6 does not start, the arc surface 1315 that flies piece 131 is concentric with motor output shaft 62, on, lower two fly piece 131 and all pass through its pin hole 2 1313 with upper, under corresponding connection of pin 12, one end of an extension spring 133 is connected with the fixed end that flies piece 131 1311 above, the other end of extension spring 133 is connected with the spring fixed hole that flies piece 131 1314 below, one end of another extension spring 133 is connected with the fixed end that flies piece 131 1311 below, the other end of extension spring 133 is connected with the spring fixed hole that flies piece 131 1314 above, thereby form an end to end closed loop, two friction lining one 132 symmetries are fixedly installed on the inwall of brake casing 3, friction lining 1 is arc structure part, the center of circle of friction lining 1 is concentric with motor output shaft 62, the position of each friction lining 1 faces each arc surface that flies piece 131 1315, when electrical motor 6 does not start, fly to be provided with gap between the arc surface 1315 of piece 131 and friction lining 1, two backing pins 1 are fixedly installed on the left side of brake casing 3, its position is separately positioned on the inner side of each movable end that flies piece 131 1312, fly piece 131 rotates between backing pin 1 and friction lining 1, at the pin hole 2 1313 that flies piece 131, be provided with lining 1 with the junction of pin 12, when pin hole 2 1313 and pin 12 rotate after wearing and tearing, can be directly rebush 1 more, need not change and fly piece 131 and pin 12,
As shown in Figure 5, mechanical braking device 2 comprises brake hoop 21, eccentric bushing 22, bearing 23, weight 24, backing pin 2 25, eccentric bushing 22 is axial workpiece, its one end is eccentric end 221, the other end is to hold 222 with one heart, the cylindrical of eccentric end 221 and endoporus disalignment, the cylindrical of end 222 is coaxial with endoporus with one heart, eccentric bushing 22 is arranged on by its endoporus on the cylindrical of motor output shaft 62, and the concentric end 222 of eccentric bushing 22 stretches out the end face of end cap 4, in eccentric bushing 22 and the junction of end cap 4, is provided with lining 2 28, bearing 23 is fixedly installed on by its inner ring on the cylindrical of motor output shaft 62, and the outer ring of bearing 23 is fixedly installed in the endoporus of eccentric end 221 of eccentric bushing 22, and eccentric bushing 22 can rotate around motor output shaft 62 by bearing 23, brake hoop 21 is disk-like accessory, brake hoop 21 is fixedly installed on by its mounting hole 212 on the cylindrical of eccentric end 221 of eccentric bushing 22, at the cylindrical of eccentric end 221 of eccentric bushing 22 and the junction of the mounting hole 212 of brake hoop 21, be provided with lining 3 29, the effect of lining 2 28 and lining 3 29 is the same with the effect of lining 1, maximum gauge place at the left surface perpendicular to brake hoop 21 is provided with slipper 214, medial surface and the lateral surface of slipper 214 are arc surface, the medial surface of slipper 214 faces the maximum cylindrical place of brake disc 11, the medial surface of slipper 214 is fixed with friction lining 2 213, between the maximum cylindrical place of friction lining 2 213 and brake disc 11, be provided with gap, maximum outside diameter along the lateral surface of brake hoop 21 is provided with position-limited trough 211, backing pin 2 25 is fixedly installed on the inwall of brake casing 3, and stretch out until in the position-limited trough 211 of brake hoop 21 one end of backing pin 2 25, weight 24 is arranged on the outside of brake casing 3, weight 24 is connected with the concentric end 222 of eccentric bushing 22 by its pipe link 241, at pipe link 241 and the lateral surface of eccentric bushing 22 connections, be provided with a travel switch 242, travel switch 242 can control and cut out electrical motor 6, as shown in Figure 6, on the end face of the outside of end cap 4, be provided with backing pin 3 26 and backing pin 4 27, the pipe link 241 of weight 24 is arranged between backing pin 3 26 and backing pin 4 27, weight 24 is controlled between backing pin 3 26 and backing pin 4 27 around the rotating angle of motor output shaft 62, weight 24 is greater than or equal to the angle of the position-limited trough 211 of brake hoop 21 around the rotating angle of motor output shaft 62.
The mode of operation of winch of the present invention is divided into following 3 kinds:
1. when electric motor normal working:
Pull weight 24, make the friction lining 2 213 of mechanical braking device 2 brake disc 11 of not fitting, start electricity
Motivation 6, electrical motor 6 drives drop-gear box 7 to rotate, drop-gear box 7 band movable reels 8 rotate, reel 8 drives jolly boat to move up and down, it is all identical with the speed that declines that jolly boat hoists, can not adjust, under this operating mode, due to the tensile force that piece 131 is subject to extension spring 133 that flies in mechanical speed-limit device 1, fly the suffered centnifugal force of piece 131 and be not enough to offset the tensile force of extension spring 133, so flying piece 131 does not contact with friction lining 1, while only having the rotating speed of motor output shaft 62 to reach certain, fly the suffered centnifugal force of piece 131 and be greater than the tensile force of extension spring 133, now fly piece 131 could and friction lining 1 between rub, after speed lowers, the centnifugal force that flies piece 131 is less than again the tensile force of extension spring 133, flying piece 131 does not contact again with friction lining 1, therefore can at the uniform velocity control the receipts of jolly boat, put operation.
2., in the situation that electrical motor 6 runs out of steam, transfer the situation of jolly boat:
In the situation that running out of steam, the electrical motor 61 locking electrical motors 6 that brake, close mechanical braking device 2, mechanical braking device 2 and electrical motor brake 61 effect simultaneously.
Now need below jolly boat, electrical motor brake 61 is unclamped, promote weight 24 and open mechanical braking device 2, jolly boat can be transferred under the effect of gravity, jolly boat band movable reel 8 rotates, reel 8 drives drop-gear box 7 to rotate, drop-gear box 7 driving electric machine output shafts 62 rotate, motor output shaft 62 drives brake disc 11 to rotate, while reaching certain speed, fly the suffered centnifugal force of piece 131 and be greater than the tensile force of extension spring 133, now fly to rub between piece 131 and friction lining 1, thereby reduce the rotating speed of motor output shaft 61, thereby reduce the descending speed of jolly boat, if need to brake, promote weight 24 and close mechanical braking device 2.
3. in the situation that electrical motor 6 runs out of steam, the situation of the jolly boat that hoists:
In the situation that running out of steam, the electrical motor 61 locking electrical motors 6 that brake, close mechanical braking device 2, mechanical braking device 2 and electrical motor brake 61 effect simultaneously.
Now need the jolly boat that hoists, electrical motor brake 61 is unclamped, pull the handle 91 of manual unit 9, drive drop-gear box 7 to rotate, thereby jolly boat is risen and rises to assigned address, in this process, mechanical braking device 2 is always in normal danger, but at jolly boat during in propradation, mechanical braking device 2 does not also have the effect of brake, this is because when turning handle 91, motor output shaft 62 reversions, brake disc 11 also reverses, brake hoop 21 is mounted on eccentric bushing 22, space between the friction lining 2 213 of brake disc 11 and brake hoop 21 is increasing, so at jolly boat during in propradation, even if mechanical braking device 2 does not have braking action in normal danger yet, such as when the turning handle 91, release handle 91 suddenly, now jolly boat declines, and the space between brake disc 11 and the friction lining 2 213 of brake hoop 21 is more and more less, and mechanical braking device 2 has also played the effect of brake in normal danger, at promotion weight 24, make mechanical braking device 2 in normal danger, now pipe link 241 tops are to travel switch 242, and because travel switch 242 is interlocked relationship with electrical motor 6, travel switch 242 can prevent maloperation actuating motor 6 and cause danger.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (10)
1. the winch for folding and unfolding jolly boat, comprise electrical motor, drop-gear box, reel, manual unit, described electrical motor is connected with drop-gear box by its motor output shaft, the output shaft of drop-gear box is connected with the center of reel, on drop-gear box, be also provided with manual unit, manual unit is provided with handle, on described electrical motor, be also provided with electrical motor brake, it is characterized in that: also comprise and be provided with brake device, described brake device comprises mechanical speed-limit device, mechanical braking device, brake casing, end cap; Described brake device is fixedly installed on drop-gear box by brake casing; Described brake casing is one end sealing, the unlimited shell part of the other end, described mechanical speed-limit device, mechanical braking device are arranged on the inside of brake casing, described end cap is arranged on the side of opening wide of brake casing, and form an airtight space with brake casing, described motor output shaft passes drop-gear box and penetrates in brake casing, is provided with driving key on the cylindrical of the motor output shaft in brake casing;
Described mechanical speed-limit device comprises brake disc, a pair of pin, a pair of friction gear, described brake disc is fixedly installed on motor output shaft by its endoporus, driving key on described motor output shaft is arranged in the keyway of brake disc, and drive brake disc to rotate, on the end face of brake disc, be arranged with two pin holes one, described a pair of pin is assemblied in respectively in two pin holes one, and its other end all exposes the end face of brake disc, friction gear comprises and flies piece, friction lining one, extension spring, backing pin one, the described piece that flies is that a side is the part of arc surface, its two ends are respectively fixed end and movable end, described fixed end is provided with pin hole two, described movable end is provided with spring fixed hole, the described arc surface that flies piece faces the inwall of brake casing, the piece that flies of described a pair of friction gear all passes through its pin hole two and the corresponding connection of described a pair of pin, one end of each extension spring is fixedly connected on respectively on each fixed end that flies piece, the other end of each extension spring is connected with the adjacent spring fixed hole that flies piece, thereby form an end to end closed loop, friction lining one symmetry of described a pair of friction gear is fixedly installed on the inwall of brake casing, the position of each friction lining one faces each arc surface that flies piece, described each backing pin one is fixedly installed on the end face of brake casing, its position is separately positioned on each inner side that flies the movable end of piece,
Described mechanical braking device comprises brake hoop, eccentric bushing, bearing, weight, backing pin two, travel switch; Described eccentric bushing is axial workpiece, its one end is eccentric end, the other end is to hold with one heart, the cylindrical of described eccentric end and endoporus disalignment, the cylindrical of described concentric end is coaxial with endoporus, described eccentric bushing is arranged on by its endoporus on the cylindrical of motor output shaft, and the concentric end of eccentric bushing stretches out the end face of end cap; Described bearing is fixedly installed on by its inner ring on the cylindrical of motor output shaft, and the outer ring of bearing is fixedly installed in the endoporus of eccentric end of eccentric bushing; Described brake hoop is disk-like accessory, brake hoop is fixedly installed on by its mounting hole on the cylindrical of eccentric end of eccentric bushing, maximum gauge place in the side end face perpendicular to described brake hoop is provided with slipper, medial surface and the lateral surface of slipper are arc surface, the medial surface of described slipper faces the maximum cylindrical place of brake disc, the medial surface of described slipper is fixed with friction lining two, along the maximum outside diameter of the lateral surface of described brake hoop, is provided with position-limited trough; Described backing pin two is fixedly installed on the inwall of brake casing, and stretch out until in the position-limited trough of brake hoop one end of backing pin two; Described weight is arranged on the outside of brake casing, and weight is connected with the concentric end of eccentric bushing by its pipe link, and the lateral surface in described pipe link and eccentric bushing connection is provided with a travel switch, and described travel switch can control and cut out electrical motor.
2. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: described friction lining one is arc structure part, and the center of circle of friction lining one is concentric with motor output shaft.
3. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: when electrical motor does not start, the arc surface that flies piece is concentric with motor output shaft.
4. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: described in fly to be provided with gap between the arc surface of piece and friction lining one.
5. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: between the maximum cylindrical place of described friction lining two and brake disc, be provided with gap.
6. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, it is characterized in that: on the end face of the outside of described end cap, be provided with backing pin three and backing pin four, the pipe link of described weight is arranged between backing pin three and backing pin four, and described weight is controlled between backing pin three and backing pin four around the rotating angle of motor output shaft.
7. a kind of winch for folding and unfolding jolly boat as claimed in claim 6, is characterized in that: described weight is greater than or equal to the angle of the position-limited trough of brake hoop around the rotating angle of motor output shaft.
8. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: at the described pin hole two that flies piece, be provided with lining one with the junction of pin.
9. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: in the junction of described eccentric bushing and end cap, be provided with lining two.
10. a kind of winch for folding and unfolding jolly boat as claimed in claim 1, is characterized in that: at the cylindrical of eccentric end of described eccentric bushing and the junction of the mounting hole of described brake hoop, be provided with lining three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200840.2A CN103991809B (en) | 2014-05-14 | 2014-05-14 | A kind of winch for folding and unfolding dink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200840.2A CN103991809B (en) | 2014-05-14 | 2014-05-14 | A kind of winch for folding and unfolding dink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103991809A true CN103991809A (en) | 2014-08-20 |
| CN103991809B CN103991809B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410200840.2A Active CN103991809B (en) | 2014-05-14 | 2014-05-14 | A kind of winch for folding and unfolding dink |
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| CN (1) | CN103991809B (en) |
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| CN104891367A (en) * | 2015-06-18 | 2015-09-09 | 无锡众扬金属制品有限公司 | Hydraulic and automatic speed-limitation compressed spring |
| CN112811332A (en) * | 2021-02-02 | 2021-05-18 | 宁波新宏液压有限公司 | Hydraulic lifeboat winch |
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| CN112811332A (en) * | 2021-02-02 | 2021-05-18 | 宁波新宏液压有限公司 | Hydraulic lifeboat winch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103991809B (en) | 2016-07-06 |
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Effective date of registration: 20170522 Address after: The River Street 212006 Zhenjiang City, Jiangsu Province town Jianbi Jingkou District No. 56 Patentee after: China ship Oasis Zhenjiang marine Auxiliaries Co., Ltd. Address before: The River Street 212000 Zhenjiang province Jiangsu City Jianbi Town, No. 56 Patentee before: Zhenjiang Ship Accessory Machine Factory , Nanjing Zhongchuan Luzhou Machine Co. |