CN103663228A - Clutch type electric chain type hoist with limit switch - Google Patents
Clutch type electric chain type hoist with limit switch Download PDFInfo
- Publication number
- CN103663228A CN103663228A CN201310421578.XA CN201310421578A CN103663228A CN 103663228 A CN103663228 A CN 103663228A CN 201310421578 A CN201310421578 A CN 201310421578A CN 103663228 A CN103663228 A CN 103663228A
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- China
- Prior art keywords
- limit switch
- chain
- motor
- gear
- main part
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/20—Chain, belt, or friction drives, e.g. incorporating sheaves of fixed or variable ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/023—Hoists
- B66D2700/025—Hoists motor operated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The present invention relates to a clutch type electric chain type hoist with a limit switch, and particularly to the clutch type electric chain type host which has the functions of: preventing overload through identifying overheavy hoisted object, and preventing fracture or damage of related components of a crane through preventing excessive coiling of a chain. The clutch type electric chain type hoist with the limit switch according to the invention comprises the components of: a body part (100) which is internally provided with a motor (110) that supplies power required for hoisting the hoisted object (30); a chain part (200) which is connected with the body part (100) and vertically reciprocates through the power of the motor (110); and the limit switch part (300) which is connected with the motor (110) outside the body part (100) and controls action of the motor (110) for stopping motion of the chain part (200) according to motion of the chain part (200).
Description
Technical field
The present invention relates to a kind of clutch type electric chain hoist that possesses limit switch, more particularly, it prevents overload by identifying overweight suspended object, and by preventing the excessive rolling of chain, thereby prevent that the associated components of hoisting crane from fracture or damage occurring.
Background technology
In general, for by building goods, materials and equipments or article carrying such as removal of home luggage etc. to the crane in regulation place or possess the clutch type electric chain hoist of limit switch, in order to carry out oscilaltion campaign, need to possess hook, and, in order to carry out dipping and heaving, operating personnel operates and makes motor rotation the switch on control desk, thereby rolls or unreel to carry out oscilaltion campaign by the metallic cable (wire) one end being fixed on hook.
This clutch type electric chain hoist that possesses limit switch is arranged on the top of crane, and, along with the manufacturing operations such as the lifting of the operation thing in plant construction and maintenance activity process, carrying are to high speed and large scale development, also more and more higher to possessing the reliability requirement of the winch that the clutch type electric chain hoist of limit switch configures.
But, by possessing the suspended object that the clutch type electric chain hoist of limit switch slings, there is different separately weight, the phenomenon that clutch type electric chain hoist that weight that suspended object is overweight causes possessing limit switch is damaged occurs in the process of suspended object of slinging.
In addition, due to the overweight weight of suspended object, cause suspended object disengaging possess the clutch type electric chain hoist of limit switch and drop, therefore cannot ensure operating personnel's safety, and suspended object self is also damaged.
Thus, when the clutch type electric chain hoist that possesses limit switch in use is sling suspended object, existence need to be measured the loaded down with trivial details problem of the weight of suspended object separately.
Technical literature formerly
Patent documentation 1: Korean registered patent gazette 10-0953401
Summary of the invention
The present invention proposes in order to address the above problem a little, the object of the present invention is to provide a kind of clutch type electric chain hoist that possesses limit switch, and it identifies overweight weight by easy mode, thereby can sling safely suspended object.
And, the object of the present invention is to provide a kind of clutch type electric chain hoist that possesses limit switch, it can ensure operating personnel's safety in the process of suspended object of slinging, and reduces to greatest extent the phenomenon that suspended object is damaged.
In addition, the object of the present invention is to provide a kind of clutch type electric chain hoist that possesses limit switch, without the weight of measuring separately suspended object, the operation of also can firmly and safely slinging.
The clutch type electric chain hoist that possesses limit switch according to the present invention possesses: main part 100, and its internal configurations has motor 110, described motor 110 be provided for the slinging power of suspended object 30; Chain portion 200, it is connected to described main part 100, and the power providing by described motor 110 moves up and down; Limit switch portion 300, its outside at described main part 100 is connected with described motor 110, and according to the motion of described chain portion 200, the action of described motor 110 is controlled, thereby makes 200 stop motions of described chain portion.
Described chain portion 200 comprises: chain 210, and its power providing by described motor 110 moves up and down; Receive chain box 220, it is configured in the outside of described main part 100, for rolling, shelves described chain 210; Hook 230, is connected to the foot of described chain 210, directly connects described suspended object 30; Sprocket wheel 240, it is formed on the bottom of described main part 100, sling suspended object 30 being rolled by described sprocket wheel 240 of the described chain 210 of loosening from described receipts chain box 220; Crashproof portion 250, is formed on the position that described chain 210 is connected with described hook 230, when described hook 230 approaches described main part 100, and the described limit switch of described crashproof portion 250 touching portion 300.
Described limit switch portion 300 comprises: switch main body 310, and it is configured in the outside of described main part 100; Bar 320, it is configured on described switch main body 310, when the described switch main body 310 of described crashproof portion 250 touching, moves; Limit switch 330, it is switched on by moving of described bar 320; Magnetic sheet 340, it receives the electric signal that described bar contacts described limit switch 330 and produce, and the electric signal transmission receiving is arrived to motor 110, thereby controls the action of described motor 110.
Described motor 110 also comprises detection limiting device 190, and it makes described motor 110 stop action by detecting the excess current producing on described motor 110.
Described main part 100 comprises: the first axle drive shaft 120, and it is connected on described motor 110 and rotates; The first gear 130, it is connected to the rotating gang with described the first axle drive shaft 120; The second drive division 140, it forms the axle of described the first gear 130, and with the rotating gang of described the first gear 130; The second gear 150, is connected on described the second axle drive shaft 140, is separated by and is arranged side by side with described the first gear 130; Brake spring 160, is configured in the both sides of described the first gear 130, when described suspended object 30 is during by excessive rolling or preponderance, by elastic force make described the first gear 130 and described the first axle drive shaft 120 mutually away from; Clutch-plate 170, is close to and is arranged between described the first gear 130 and described brake spring 160, and the elastic force of described brake spring 160 is delivered on described the first gear 130; Pulley 180, around described the first axle drive shaft 120, in the situation that not disturbing described the first axle drive shaft 120, with the rotating gang of described the second gear 120, thereby controls the action of described chain portion 200 across interval.
According to the clutch type electric chain hoist that possesses limit switch of the present invention, by the overweight weight to suspended object, identify, thereby can sling safely suspended object, expanded to greatest extent the safety of using.
According to the clutch type electric chain hoist that possesses limit switch of the present invention, when slinging suspended object, can not cause suspended object and possess the damage of the clutch type electric chain hoist self of limit switch, thereby can improve operating efficiency.
According to the clutch type electric chain hoist that possesses limit switch of the present invention, extend to greatest extent the service life of the clutch type electric chain hoist that possesses limit switch, thereby can save corresponding expense.
Accompanying drawing explanation
Fig. 1 means the figure that possesses the clutch type electric chain hoist of limit switch of the present invention.
Fig. 2 means the figure of the use state of the clutch type electric chain hoist that possesses limit switch of the present invention.
Fig. 3 is the clutch type electric chain hoist schematic cross-section that possesses limit switch of the present invention.
Fig. 4 is the schematic diagram of the main portion of the clutch type electric chain hoist that possesses limit switch of the present invention.
Fig. 5 is the use view of the clutch type electric chain hoist that possesses limit switch in Fig. 4.
Reference numeral
30: suspended object 50: rope
100: main part 110: motor
112: 120: the first axle drive shafts of axle
140: the second axle drive shafts of 130: the first gears
Within 150: the second, gear 160: brake spring
170: clutch-plate 180: pulley
190: detect limiting device 200: chain portion
210: chain 220: receive chain box
230: hook 240: sprocket wheel
250: crashproof portion 300: limit switch portion
310: switch main body 320: bar
330: limit switch 340: magnetic sheet
The specific embodiment
Below, in order to allow those skilled in the art that the present invention can easily be implemented, with reference to accompanying drawing, explain the preferred embodiments of the present invention.
In following detailed description, be suitable in the same manner forming for identifying the technology of the clutch type electric chain hoist that possesses limit switch (particularly limit switch portion) of the clutch type electric chain hoist that possesses limit switch of overweight suspended object and the suspended object of can slinging safely as an embodiment.
Fig. 1 means the figure that possesses the clutch type electric chain hoist of limit switch of the present invention.
Fig. 2 means the figure of the use state of the clutch type electric chain hoist that possesses limit switch of the present invention.
Observe Fig. 1 and Fig. 2, the clutch type electric chain hoist that possesses limit switch is configured in guide rail etc., after the suspended object 30 of slinging, carries.
In addition, the clutch type electric chain hoist that possesses limit switch hangs over hook 230 on described suspended object 30, by rolling or emit the chain 210 being connected on hook 230, slings or carries suspended object 30.
For this reason, possessed the main part 100 that internal configurations has motor 110, described motor 110 be provided for the slinging power of described lifting thing 30.
The power providing by described motor 110, described chain 210 can move up and down.
Therefore, possesses the chain portion 200 that the power that is connected to described main part 100 and provides by described motor 110 is directly connected in suspended object 30.
In addition, described chain portion 200 possesses: described chain 210; Receive chain box 220, it is configured in the outside of described main part 100, for chain described in rolling 210; Described hook 230, is connected to the foot of described chain 210, is directly connected to described suspended object 30.
Described chain 210 has the state that iron hoop is firmly connected to each other, thereby makes the described chain 210 large described suspended object 30 of weight of can slinging.
In addition, described hook 230 can directly be connected on described suspended object 30 or be connected on the rope 50 of pinioning described suspended object 30.
Now, described hook 230 forms with steel, in order firmly and easily to connect suspended object 30, can use hook with safety tong (snap hook).
And described chain portion 200 possesses sprocket wheel 240, it is formed on the bottom of described main part 100, and the described chain 210 of emitting from described receipts chain box 220 is rolled by sprocket wheel 240 when slinging suspended object 30.
In addition, described chain portion 200 possesses crashproof portion 250, and it is formed on the position that described chain 210 is connected with described hook 230, when described hook 230 approaches described main part 100, and the described limit switch of described crashproof portion 250 touching portion 300.
Now, described sprocket wheel 240 utilizes pulling force that the heavy burden hanging on hook 230 is upwards sling, even if the power passing on described chain 210 is cut off, also can keep the state of reeling.
In addition, the clutch type electric chain hoist that possesses limit switch according to the present invention possesses limit switch portion 300, its outside at described main part 100 is connected with described motor 110, according to the motion of described chain portion 200, the action of described motor 110 is controlled, thereby made 200 stop motions of described chain portion.
When the described limit switch of described crashproof portion 250 touching portion 300, described limit switch portion 300 makes described motor 110 stop action, thus the inside that the described hook 230 that prevents from comprising described chain 210 involves in described main part 100.
Consequently, by being arranged on the operation of can slinging swimmingly of the described chain portion 200 of described main part 100 and described limit switch portion 300, can prevent safety misadventure again.
Fig. 3 means the figure that possesses the clutch type electric chain hoist cross section of limit switch of the present invention.
With reference to Fig. 1, observe Fig. 3, can confirm the inner section of described main part 100.
Described main part 100 possesses and is connected to the first axle drive shaft 120 being rotated on described motor 110 and is connected to the first gear 130 with the rotating gang of described the first axle drive shaft 120.
The mode that described the first axle drive shaft 120 extends with the length direction of the described axle 112 along described motor 110 is connected on axle 112, and with the rotating gang of described axle 112.
In addition, described main part 100 possesses: the second axle drive shaft 140, it forms the axle of described the first gear 130, and with the rotating gang of described the first gear 130; The second gear 150, is connected on described the second axle drive shaft 140, is separated by and is arranged side by side with described the first gear 130.
In like manner, along with the rotation of described the first gear 130, described the second axle drive shaft 140 and described the second gear 150 are rotated in linkage.
Described main part 100 possesses brake spring 160, and it is configured in the both sides of described the first gear 130, when described suspended object 30 preponderances, or during by excessive rolling, by elastic force make described the first gear 130 and described the first axle drive shaft 120 mutually away from.
In addition, in the middle of described the first gear 130 and described brake spring 160, be close to be provided with the elastic force of described brake spring 160 is delivered to the clutch-plate 170 on described the first gear 130.
Finally, described main part 100 possesses pulley 180, and it, does not form and disturb described the first axle drive shaft 120 around described the first axle drive shaft 120 across interval, and with the rotating gang of described the second gear 120, to control the action of described chain portion 200.
Now, described the first gear 130 be connected to described the first axle drive shaft 120 and with the rotating gang of described the first axle drive shaft 120, described the first gear 130 can be connected or leave with described the first axle drive shaft 120.
Like this, described brake spring 160 applies elastic force and makes described the first gear 130 be connected or leave with described the first axle drive shaft 120.
Then,, when described brake spring 160 applies elastic force to described the first gear 130, be close to the clutch-plate 170 being arranged between described the first gear 130 and described brake spring 160 and transmit elastic force to described the first gear 130.
Particularly, when described brake spring 160 applies elastic force to described the first gear 130, if the weight of described suspended object 30 surpasses the weight of setting, make described the first gear 130 leave described the first axle drive shaft 120, even thereby described the first gear 130 rotations, described the first axle drive shaft 120 is also interference-free.
Be specially, when described suspended object 30 surpasses the weight of regulation, make described the first gear 130 leave described the first axle drive shaft 120, when described the first gear 130 stops the rotation, described the second axle drive shaft 140 and described the second gear 150 that are connected with described the first gear 130 stop the rotation in linkage.
Like this, when described the second gear 150 stops the rotation, the described pulley 180 being connected with described the second gear 150 also stops the rotation in linkage with described the second gear 150.
Thus, described pulley 180 stops the action that described chain 210 is rolled or emitted from described sprocket wheel 240 by described sprocket wheel 240.
As mentioned above, due to described pulley 180 across interval the outer peripheral face around described the first axle drive shaft 120, described the first axle drive shaft 120 is not formed and is disturbed, therefore, described pulley 180 be not subject to the lasting rotating gang of described motor 110 the interference of the first axle drive shaft 120 of being rotated.
Fig. 4 is the schematic diagram that possesses the clutch type electric chain hoist main portion of limit switch of the present invention.
The figure of the use state of Fig. 5 means Fig. 4 the clutch type electric chain hoist that possesses limit switch of the present invention.
Referring to figs. 1 through Fig. 3, observe Fig. 4 and Fig. 5, can confirm inside and the use state of described limit switch portion 300.
Described limit switch portion 300 possesses: switch main body 310, and it is configured in the inside of described main part 100; Bar 320, it is configured to connect to outside from the inside of described switch main body 310, when the described switch main body 310 of described crashproof portion 250 touching, moves.
In addition, described limit switch portion 300 possesses: limit switch 330, and it is switched on by moving of described bar 320; Magnetic sheet 340, the electric signal that it produces while receiving the described limit switch 330 of described bar 320 contact, and the electric signal transmission receiving is arrived to motor 110, thus control the action of described motor 110.
Now, described limit switch portion 300 exposes to outside from the inside of described main part 100, and configurable between described sprocket wheel 240 and described motor 110.
Wherein, described bar 320 consists of insulated metal.
Therefore, produce electric signal, and this electric signal is passed to described magnetic sheet 340 when the described limit switch 330 of described bar 320 contact, described magnetic sheet 340 passes to above-mentioned motor 110 by the electric signal of reception, thereby makes described motor 110 stop driving.
The described limit switch portion 300 of this structure, can prevent that described chain 210 from being rolled and making described hook 230 be involved in the phenomenon of described main part 100 inside by described sprocket wheel 240.
When phenomenon that the described chain 210 of frequent generation is exceedingly reeled by described sprocket wheel 240, the frequent use of described clutch-plate 170 and described brake spring 160 can cause the loss of associated components to increase, thereby make parts that fracture or damage occur, so operator is by the hole.
Now, except described clutch-plate 170 and described brake spring 160, also can by described limit switch portion 300, when occurring excessively to roll phenomenon, stop the action of described motor 110, therefore can prevent the loss accumulated on associated components, thereby can increase the service life.
In addition, described motor 110 also comprises detection limiting device 190, and it passes through to detect the excess current producing on described motor 110, and makes described motor 110 stop action.
Now, described limit switch portion 110 can prevent that described chain 210 from exceedingly being rolled by described sprocket wheel 240 and the phenomenon of the excessive rolling that occurs.
Then, described detection limiting device 190, by detecting the excess current producing on described motor 110, when the electric current forming on described motor 110 surpasses setting range, makes described motor 110 stop action.
Consequently, described detection limiting device 190 can prevent the overload of described motor 110.
Observe the action of described limit switch portion 300, when described hook 230 approaches the adjoining position of having set of described main part 100, described switch main body 310 touchings are configured in the described crashproof portion 250 on the top of described hook 230.
When described crashproof portion 250 touches with described switch main body 310, be configured in described switch main body 310 inner and mobile described bars 230 and move.
Then, the described bar 230 consisting of insulator moves and while contacting with described limit switch 330, will produce electric signal, described limit switch 330 by this electric signal transmission to magnetic sheet 340.
And described magnetic sheet to described motor 110, makes this electric signal transmission described motor 110 stop action, thereby controls described motor 110.
Now, described bar 230 only just moves when the described switch main body 310 of described crashproof portion 250 touching, and then can make motor 110 stop.
The inside that described in when consequently, described limit switch portion 300 can stop described chain 210 to be rolled by described sprocket wheel 240, hook 230 is involved in described main part 100.
Thus, the inside of being involved in described main part 100 by preventing described hook 230 from excessively being rolled by described sprocket wheel 240, thus can prevent the phenomenon that the apparatus of described main body 100 inside is damaged in advance.
By this structure, identify the overweight weight of suspended object, thereby can sling safely suspended object, improved to greatest extent safety.
In addition, due to the operation in the situation that the damage that can not cause suspended object and possess the clutch type electric chain hoist self of limit switch is sling, thereby can improve operating efficiency.
And prolongation possesses the service life of the clutch type electric chain hoist of limit switch to greatest extent, thereby can save corresponding expense.
Particularly, action to described motor 110 is controlled, to prevent the overload of described motor 110 by described detection limiting device 190, and prevent from by described sprocket wheel 240, excessively being rolled the phenomenon of the excessive rolling occurring because of described chain 210 by described limit switch portion 300, possessed thus a plurality of safety measures.
Above, embodiment and accompanying drawing by the items such as element such as concrete and restriction have illustrated the present invention, but being only used to comprehend the present invention, this provides, the present invention is not defined in above-described embodiment, and the technical personnel in described field can carry out various modifications and distortion by above-mentioned record.
Therefore, thought of the present invention is not limited to the embodiment of above-mentioned explanation, claim scope described later and be equal to this claim scope or the form of ownership of distortion of equal value all should belong to thought range of the present invention.
Claims (5)
1. a clutch type electric chain hoist that possesses limit switch, it comprises:
Main part (100), its internal configurations has motor (110), and described motor (110) provides the suspended object of slinging (30) required power;
Chain portion (200), it is connected to described main part (100), and moves up and down by the power of described motor (110);
Limit switch portion (300), its outside at described main part (100) is connected with described motor (110), and according to the motion of described chain portion (200), the action of described motor (110) is controlled, make described chain portion (200) stop motion.
2. the clutch type electric chain hoist that possesses limit switch according to claim 1, is characterized in that, described chain portion (200) comprising:
Chain (210), its power by described motor (110) moves up and down;
Receive chain box (220), it is configured in the outside of described main part (100), for chain described in rolling (210);
Hook (230), is connected to the foot of described chain (210), is directly connected in described suspended object (30);
Sprocket wheel (240), it is formed on the bottom of described main part (100), and the described chain (210) of emitting from described receipts chain box (220) is wound in described sprocket wheel (240) when the suspended object of slinging (30);
Crashproof portion (250), be formed on the position that described chain (210) is connected with described hook (230), when described hook (230) approaches described main part (100), described crashproof portion (250) touches described limit switch portion (300).
3. the clutch type electric chain hoist that possesses limit switch according to claim 2, is characterized in that, described limit switch portion (300) comprising:
Switch main body (310), it is configured in the outside of described main part (100);
Bar (320), it is upper that it is configured in described switch main body (310), when described crashproof portion (250) touches described switch main body (310), moves;
Limit switch (330), it is switched on by moving of described bar (320);
Magnetic sheet (340), the electric signal producing when it receives described bar (320) and contacts described limit switch (330), and by electric signal transmission to motor (110) to control the action of described motor (110).
4. the clutch type electric chain hoist that possesses limit switch according to claim 1, is characterized in that,
Described motor (110) also comprises detection limiting device (190), the excess current that it above produces by detecting described motor (110), and make described motor (110) stop moving.
5. the clutch type electric chain hoist that possesses limit switch according to claim 1, is characterized in that, described main part (100) comprising:
The first axle drive shaft (120), it is connected to described motor (110) and goes up and be rotated;
The first gear (130), it is connected to the rotating gang with described the first axle drive shaft (120);
The second drive division (140), it forms the axle of described the first gear (130), and with the rotating gang of described the first gear (130);
The second gear (150), is connected to described the second axle drive shaft (140) upper, separate with described the first gear (130) and and row arrangement;
Brake spring (160), be configured in the both sides of described the first gear (130), when the excessive rolling of described suspended object (30) quilt or preponderance, apply elastic force described the first gear (130) and described the first axle drive shaft (120) are left mutually;
Clutch-plate (170), is close to and is configured between described the first gear (130) and described brake spring (160), so that the elastic force of described brake spring (160) is delivered to described the first gear (130);
Pulley (180), across interval around described the first axle drive shaft (120), and do not disturb with described the first axle drive shaft (120), with the rotating gang of described the second gear (120), thereby control the action of described chain portion (200).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020120008296U KR200468048Y1 (en) | 2012-09-17 | 2012-09-17 | Electric chain hoist of clutch type with limit switch |
| KR20-2012-0008296 | 2012-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103663228A true CN103663228A (en) | 2014-03-26 |
Family
ID=50302160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310421578.XA Pending CN103663228A (en) | 2012-09-17 | 2013-09-16 | Clutch type electric chain type hoist with limit switch |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200468048Y1 (en) |
| CN (1) | CN103663228A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787071A (en) * | 2019-10-21 | 2022-07-22 | 株式会社开道 | Winch and driving control method of winch |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101620416B1 (en) * | 2015-08-17 | 2016-05-13 | 주식회사 대산이노텍 | Electric chain hoist including limit switch |
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| KR19980014754U (en) * | 1996-09-02 | 1998-06-25 | 김상열 | Over-wrapable Chain Hoist |
| JP3323441B2 (en) * | 1998-05-01 | 2002-09-09 | 株式会社キトー | Chain block overwind detector |
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| JP2003171089A (en) * | 2001-12-05 | 2003-06-17 | Hitachi Ltd | Electric winding up machine |
| CN2570234Y (en) * | 2002-08-14 | 2003-09-03 | 凃学全 | Clutch arrangement for crane machinery |
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| CN201647893U (en) * | 2010-02-25 | 2010-11-24 | 上海德益轻型起重机有限公司 | Electric and mechanical limiting structure of electric chain hoist |
| CN202296967U (en) * | 2010-12-17 | 2012-07-04 | 株式会社日立产机系统 | Electric chain hoist |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787071A (en) * | 2019-10-21 | 2022-07-22 | 株式会社开道 | Winch and driving control method of winch |
| CN114787071B (en) * | 2019-10-21 | 2024-05-28 | 株式会社开道 | Winch and driving control method for winch |
| US12012316B2 (en) | 2019-10-21 | 2024-06-18 | Kito Corporation | Winding machine and method of controlling driving of winding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200468048Y1 (en) | 2013-07-19 |
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Application publication date: 20140326 |