CN209797344U - Fixed electric block stop device - Google Patents
Fixed electric block stop device Download PDFInfo
- Publication number
- CN209797344U CN209797344U CN201920429707.2U CN201920429707U CN209797344U CN 209797344 U CN209797344 U CN 209797344U CN 201920429707 U CN201920429707 U CN 201920429707U CN 209797344 U CN209797344 U CN 209797344U
- Authority
- CN
- China
- Prior art keywords
- rod
- electric hoist
- movable limiting
- travel switch
- limiting groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Emergency Lowering Means (AREA)
Abstract
A fixed electric hoist limiting device comprises a hinge rod, a movable limiting rod and a swinging rod, wherein the hinge rod and the movable limiting rod are respectively and vertically arranged at the lower parts of hoisting girders at two ends of an electric hoist, and the electric hoist is also fixedly arranged at the lower part of the hoisting girders; the lower end of the movable limiting rod is provided with a movable limiting groove; the upper end of the movable limiting groove is provided with a travel switch; a normally closed contact of the travel switch is connected in series with a lifting contactor coil of the electric hoist; one end of the swinging rod is hinged to the lower end of the hinge rod through the hinge piece, the other end of the swinging rod penetrates through the movable limiting groove, the swinging rod can swing up and down in the movable limiting groove by taking the hinge piece as a pivot, and the swinging rod is located above a pulley lifting hook of the electric hoist and is arranged between two ends of a steel wire rope wound around the pulley lifting hook. The fixed electric hoist limiting device is simple to install, simple and easy to debug, simple to maintain, low in modification cost, and capable of greatly reducing maintenance cost and avoiding equipment safety accidents after installation.
Description
Technical Field
The utility model relates to an electric block stop device's technical field specifically is a fixed electric block stop device.
Background
Sugarcane, (academic name:Saccharum officinarum) Saccharum officinarum, a large and solid herb growing for many years. The root is strong and developed. The height of the stalk is 3-5(-6) m. Taiwan, Fujian, Guangdong, Hainan, Guangxi, Sichuan, Yunnan and other tropical areas in south China. The sugarcane is suitable for being planted in places with fertile soil, sufficient sunlight and large temperature difference in winter and summer. Sugar cane is a temperate and tropical crop, a raw material for sucrose production, and ethanol can be extracted as an energy substitute.
the sugarcane is a raw material for preparing sugar from sugarcane, and is prepared into products such as white granulated sugar, crude sugar and the like through the procedures of extracting juice, cleaning, evaporating, crystallizing, honey separating, drying and the like. The residue of sugar cane after sugar extraction is bagasse. At present, most bagasse packaging modes adopt a novel cordless packaging mode. The cordless packing mode is that bagasse is directly conveyed and loaded by a bagasse conveying belt without extra packing; the novel packaging mode not only reduces the labor amount and the labor intensity, but also reduces the packaging cost, so that the novel packaging mode is widely applied to the sugar industry.
The bagasse conveying belt adopted in the cordless packaging mode is a conveying belt with a hinged feeding end and a lifting control end controlled by a fixed electric hoist. In order to protect equipment, the fixed electric block is provided with a lifting limiting device. The publications also report some electric block limit devices, such as:
1. Chinese patent: the utility model provides an electric block promotes stop device, application number: 201120080407.1, filing date: 2011.03.24, patentee: emerging cast pipe stocks, inc, address: 056300 New cast tube shares GmbH of Handan, Wuan, of Hebei province, inventor: wangzhangtian, abstract: the utility model discloses an electric hoist lifting limiting device, which is characterized in that the electric hoist lifting limiting device comprises a limiting switch, a limiting steel wire rope and a counterweight ring; the limit switch is fixed on the outer side of the winding drum of the electric hoist; one end of the limiting steel wire rope is fixed on a deflector rod of the limiting switch, and the other end of the limiting steel wire rope is fixed on the counterweight ring; the counterweight ring is sleeved on a hoisting steel wire rope of the electric hoist; and a normally open contact of the limit switch is connected in series to a lifting contactor loop of a control loop of the electric hoist. The utility model discloses simple structure, practicality, control is reliable, and the effectual broken fire ware of having solved easily badly leads to promoting spacing malfunctioning problem, has guaranteed electric block's safe handling, has reduced equipment failure rate, has better use and spreading value.
2. chinese patent: electric block rises stop device, application number 201520258059.0, application date: 2015.04.27, patentee: picnic, address: 223100 Huai' an city, Jiangsu province, Huai Hai Nanlu 134 # 8 floor 208 room (power supply office south yard), inventor: picnic, abstract: the utility model discloses an electric hoist ascending limiting device, which comprises an electric hoist arranged on a cantilever arm, wherein the electric hoist consists of a pulley and a motor, the motor is fixed on the pulley, a movable pulley is arranged below the motor, a hook is arranged on the movable pulley, a heavy ring is sleeved on a sliding rope of the movable pulley, the upper end of the heavy ring is connected with a limiting switch arranged on the motor through a pull rope, a supporting plate is sleeved at the position of the sliding rope close to the movable pulley, the supporting plate and the heavy ring are in a ring shape with the same diameter, one side of the supporting plate extends to the position of the movable pulley to form an extending part, the utility model adds a limiting device on the existing electric hoist to prevent the whole motor from being collided due to the over-lifting of a lifting device of the electric hoist, thereby reducing the service life of the electric hoist, and has simple structure, reasonable in design can prevent effectively that electric block from receiving the collision, guarantees whole operation process's safety to and improve electric block's life.
3. Chinese patent: an electric block stopper, application number: 201520658805.5, filing date: 2015.08.28, patentee: yoyo seiko industrial co, yoyo, york: 453400 Ming Lu 402 of Changyuan county, New county, Henan province, inventor: pacific color court, Zhao school party, Wang Xiao hong, abstract: the utility model relates to an electric block stopper, it includes the electric block base, the electric block base on be provided with the hoist mechanism, the hoist mechanism on be provided with wire rope, wire rope on be provided with the lifting hook, the electric block base lower surface be provided with the mounting panel through the round pin axle rotary mechanism, the left end of mounting panel lower surface be connected with balancing weight B through the connecting rope, the right-hand member of mounting panel lower surface be connected with the spring through the connecting rope, the spring bottom be connected with balancing weight A, be provided with the through-hole on the balancing weight A, the through-hole in be provided with wire rope, the right side of round pin axle rotary mechanism on the electric block base lower surface be provided with travel switch; the utility model has the advantages of being simple in structure and convenient in operation, can effectual protection hoist mechanism.
At present, fixed electric hoists commonly used in sugar refinery are all provided with a fire breaking limiter, and in the working process, when a lifting mechanism of the fixed electric hoist reaches a set height, a rope guider touches a lifting positioning clip to drive a connecting rod to push the fire breaking limiter to cut off a power supply, so that the purpose of protecting equipment is achieved. However, the fixed electric hoist must be lifted at least five times or more per loading of bagasse, such lifting frequency causes frequent damage to the mechanical and electrical components of the fire-cut limiter of the fixed electric hoist, and the fire-cut limiter of the fixed electric hoist is installed at a high place, which is inconvenient to maintain and replace, and also causes great equipment accidents when the fire-cut limiter fails. Moreover, only one limiting device is arranged on the conventional electric hoist, and the limiting device cannot play a role of limiting and protecting equipment when the limiting device fails.
therefore, in order to solve the problems, a set of safety limiting device must be added on the fixed electric hoist driving the bagasse conveying belt to lift so as to protect the safety of the bagasse conveying belt.
Disclosure of Invention
The utility model aims at providing a stop device that rises of fixed electric block with low costs of manufacture, long service life.
In order to realize the purpose of the utility model, the technical scheme who takes is:
The utility model provides a fixed electric block stop device which characterized in that: the electric hoist lifting device comprises a hinge rod, a movable limiting rod and a swinging rod, wherein the hinge rod and the movable limiting rod are respectively vertically arranged at the lower parts of lifting girders at two ends of the electric hoist, and the electric hoist is also fixedly arranged at the lower part of the lifting girders; the lower end of the movable limiting rod is provided with a movable limiting groove; the upper end of the movable limiting groove is provided with a travel switch; a normally closed contact of the travel switch is connected in series with a lifting contactor coil of the electric hoist; one end of the swinging rod is hinged to the lower end of the hinge rod through the hinge piece, the other end of the swinging rod penetrates through the movable limiting groove, the swinging rod can swing up and down in the movable limiting groove by taking the hinge piece as a pivot, and the swinging rod is located above a pulley lifting hook of the electric hoist and is arranged between two ends of a steel wire rope wound around the pulley lifting hook.
Preferably: the travel switch is an LX-JW2/11B travel switch.
preferably: the normally open contact of the travel switch is connected with an electric bell; when the swing rod touches the travel switch, the electric bell automatically alarms.
The length of the hinged rod and the movable limiting rod ensures that the position for installing the swinging rod is lower than the position of the limiting fire breaker of the electric hoist; the electric hoist works to wind a steel wire rope, the pulley hook is driven to ascend, so that the swinging rod is driven to swing upwards by taking the hinged piece as a fulcrum, the travel switch is touched, the ascending contactor coil of the electric hoist is subjected to power failure tripping, the motor power supply of the electric hoist is cut off, and meanwhile, the normally open contact of the travel switch starts the electric bell to warn an operator, so that the safety is improved; when the pulley hook rises to drive the swinging rod to touch the travel switch, the electric hoist stops rising and does not need to touch the limiting fire breaker to stop rising; the limiting fire cutter is used as a second re-ascending limiter.
Compared with the prior art, the utility model has the advantages that:
1. The fixed electric hoist limiting device is simple to install, simple to debug, simple to maintain and low in modification cost, a hinge rod and a movable limiting rod are respectively installed at the lower parts of hoisting girders at two ends of an electric hoist, and the lower end of the movable limiting rod is provided with a movable limiting groove; the upper end of the movable limiting groove is provided with a travel switch; a normally closed contact of the travel switch is connected in series with a lifting contactor coil of the electric hoist; one end of a swinging rod is hinged to the lower end of a hinge rod through a hinge piece, the other end of the swinging rod penetrates through a movable limiting groove, the swinging rod can swing up and down in the movable limiting groove by taking the hinge piece as a fulcrum, the swinging rod is positioned above a pulley lifting hook of the electric block and is arranged between two ends of a steel wire rope wound with the pulley lifting hook, the electric block works to wind the steel wire rope and drive the pulley lifting hook to ascend, so that the swinging rod is driven to swing upwards by taking the hinge piece as the fulcrum to touch a travel switch, a rising contactor coil of the electric block is subjected to power failure tripping, a motor power supply of the electric block is cut off, namely when the pulley lifting hook ascends to drive the swinging rod to touch the travel switch, the electric block stops ascending work without touching a; the limiting fire cutter is used as a second re-ascending limiter; because the electrical life of the travel switch is more than 30 ten thousand times, and the mechanical life is more than 60 ten thousand times, the limit device can greatly reduce the maintenance cost and avoid equipment safety accidents.
2. A normally open contact of the travel switch is connected with an electric bell; after the swinging rod touches the travel switch, the electric bell automatically alarms to warn an operator, so that the operator can master the working state of the electric hoist, and the safety is improved.
Drawings
FIG. 1 is a schematic diagram of the mounting structure of the fixed electric hoist limiting device;
the part names of the sequence numbers in the figure are:
1. Hinge rod, 2, electric block, 3, lift by crane the girder, 4, spacing disconnected firearm, 5, electric bell, 6, activity gag lever post, 7, travel switch, 8, activity spacing groove, 9, swinging arms, 10, pulley lifting hook, 11, wire rope, 12, articulated elements.
Detailed Description
In order to make the technical scheme and advantages of the present application clearer, the following description clearly and completely describes the technical scheme of the fixed electric hoist limiting device with reference to the embodiments and the accompanying drawings.
Example 1
The utility model provides a fixed electric block stop device which characterized in that: the electric hoist lifting device comprises a hinge rod 1, a movable limiting rod 6 and a swinging rod 9, wherein the hinge rod 1 and the movable limiting rod 6 are respectively vertically arranged at the lower parts of lifting girders 3 at two ends of an electric hoist 2, and the electric hoist 2 is also fixedly arranged at the lower part of the lifting girders 3; the lower end of the movable limiting rod 6 is provided with a movable limiting groove 8; the upper end of the movable limiting groove 8 is provided with a travel switch 7; a normally closed contact of the travel switch 7 is connected in series with a coil of a lifting contactor of the electric hoist 2; one end of the oscillating rod 9 is hinged at the lower end of the hinge rod 1 through a hinge piece 12, the other end of the oscillating rod 9 penetrates through the movable limiting groove 8, the oscillating rod 9 can swing up and down in the movable limiting groove 8 by taking the hinge piece 12 as a fulcrum, and the oscillating rod 9 is positioned above a pulley lifting hook 10 of the electric hoist 2 and is arranged between two ends of a steel wire rope 11 wound around the pulley lifting hook 10.
The travel switch 7 is an LX-JW2/11B travel switch.
Example 2
The utility model provides a fixed electric block stop device which characterized in that: the electric hoist lifting device comprises a hinge rod 1, a movable limiting rod 6 and a swinging rod 9, wherein the hinge rod 1 and the movable limiting rod 6 are respectively vertically arranged at the lower parts of lifting girders 3 at two ends of an electric hoist 2, and the electric hoist 2 is also fixedly arranged at the lower part of the lifting girders 3; the lower end of the movable limiting rod 6 is provided with a movable limiting groove 8; the upper end of the movable limiting groove 8 is provided with a travel switch 7; a normally closed contact of the travel switch 7 is connected in series with a coil of a lifting contactor of the electric hoist 2; one end of the oscillating rod 9 is hinged at the lower end of the hinge rod 1 through a hinge piece 12, the other end of the oscillating rod 9 penetrates through the movable limiting groove 8, the oscillating rod 9 can swing up and down in the movable limiting groove 8 by taking the hinge piece 12 as a fulcrum, and the oscillating rod 9 is positioned above a pulley lifting hook 10 of the electric hoist 2 and is arranged between two ends of a steel wire rope 11 wound around the pulley lifting hook 10.
The travel switch 7 is an LX-JW2/11B travel switch.
The normally open contact of the travel switch 7 is connected with an electric bell 5.
The lengths of the hinged rod 1 and the movable limiting rod 6 ensure that the position for installing the swinging rod 9 is lower than the position of the limiting fire breaker 4 of the electric hoist 2; the electric hoist 2 works to wind a steel wire rope 11 and drive a pulley lifting hook 10 to ascend, so that a swinging rod 9 is driven to swing upwards by taking a hinge piece 12 as a fulcrum, a travel switch 7 is touched, a rising contactor coil of the electric hoist 2 is subjected to power-off tripping, a motor power supply of the electric hoist 2 is cut off, and meanwhile, a normally open contact of the travel switch starts an electric bell 5 to warn an operator, so that the safety is improved; namely, when the pulley hook 10 rises to drive the swinging rod 9 to touch the travel switch 7, the electric hoist 2 stops the rising work and does not need to touch the limiting fire breaker 4 to stop the rising work; the limit fire cutter 4 serves as a second re-ascent limit stop.
application examples
1. In a sugar refinery in Guangxi, when bagasse is treated by using a cordless packaging mode originally, a fixed electric hoist utilizes a limiting fire breaker as a lifting limiter of the electric hoist, and the limiting fire breaker needs to be maintained and replaced once a month in a season of squeezing; later, the limiting device is additionally arranged at the fixed electric hoist, so that the electric hoist is not required to be maintained and replaced in two squeezing seasons, and the maintenance cost is greatly reduced.
The above description is not intended to limit the present application, and the present application is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions or substitutions within the spirit and scope of the present application.
Claims (3)
1. The utility model provides a fixed electric block stop device which characterized in that: the lifting device comprises a hinge rod (1), a movable limiting rod (6) and a swinging rod (9), wherein the hinge rod (1) and the movable limiting rod (6) are respectively and vertically arranged at the lower parts of lifting crossbeams (3) at two ends of an electric hoist (2); the lower end of the movable limiting rod (6) is provided with a movable limiting groove (8); the upper end of the movable limiting groove (8) is provided with a travel switch (7); a normally closed contact of the travel switch (7) is connected with a coil of a lifting contactor of the electric hoist (2) in series; one end of the oscillating rod (9) is hinged at the lower end of the hinged rod (1) through the hinged piece (12), the other end of the oscillating rod (9) penetrates through the movable limiting groove (8), and the oscillating rod (9) is positioned above the pulley lifting hook (10) of the electric block (2) and is arranged between two ends of a steel wire rope (11) which is wound around the pulley lifting hook (10).
2. The fixed electric block limiting device according to claim 1, wherein: the travel switch (7) is an LX-JW2/11B travel switch.
3. The fixed electric block limiting device according to claim 1, wherein: the normally open contact of the travel switch (7) is connected with an electric bell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429707.2U CN209797344U (en) | 2019-04-01 | 2019-04-01 | Fixed electric block stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429707.2U CN209797344U (en) | 2019-04-01 | 2019-04-01 | Fixed electric block stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209797344U true CN209797344U (en) | 2019-12-17 |
Family
ID=68827322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920429707.2U Active CN209797344U (en) | 2019-04-01 | 2019-04-01 | Fixed electric block stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209797344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003459A (en) * | 2021-04-23 | 2021-06-22 | 维多利科技（江苏）有限公司 | Spacing protection formula electric block |
-
2019
- 2019-04-01 CN CN201920429707.2U patent/CN209797344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003459A (en) * | 2021-04-23 | 2021-06-22 | 维多利科技（江苏）有限公司 | Spacing protection formula electric block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205653092U (en) | Tower crane of band plate material bracket | |
| CN203205772U (en) | Overhead ground wire lifter | |
| CN209797344U (en) | Fixed electric block stop device | |
| CN204689393U (en) | A kind of crane hanging hook assembly structure | |
| CN202785380U (en) | Small crane | |
| CN219751707U (en) | Novel electric hoist single-double beam crane trolley | |
| CN102738733A (en) | Cradle for replacing porcelain insulator of +/-660kV strain tower | |
| CN102412532A (en) | Overhead line pulley device | |
| CN109775558B (en) | Clamp device for series connection of graphite electrode groups and lifting crown block with clamp device | |
| CN207404702U (en) | A kind of security grabhook of derrick crane | |
| CN210944645U (en) | Crane lifting height limiting device | |
| CN206751182U (en) | Hoisting dolly hoist cable enters the monitor device of basketry | |
| CN203428745U (en) | Electric grab bucket | |
| CN201762044U (en) | Novel safety protection device for tower crane | |
| CN208532021U (en) | A kind of anti-rope tripping gear of lifting equipment suspension hook | |
| CN201351087Y (en) | Crane | |
| CN211078223U (en) | Height limiter and grab bucket device | |
| CN204958195U (en) | Hoist load power take -off | |
| CN216714032U (en) | Torque calculation and over-torque prevention system of double-rocker electric holding pole | |
| CN205472307U (en) | Novel lifting hook safety device | |
| CN204958257U (en) | Crane steel wire rope anti -bouncing device | |
| CN218879181U (en) | Tower crane hook | |
| CN214874397U (en) | Underground mining truck lifting safety device | |
| CN221116716U (en) | Crane with double limiting protection function | |
| CN215946531U (en) | Heavy hammer limiting device for lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 530317 the Guangxi Zhuang Autonomous Region Nanning city six Hengxian Jing Zhen Guangxi Nongken sugar group Liangqi Sugar Co. Ltd. Patentee after: Guangxi sugar group Liangqi Sugar Co., Ltd Address before: 530317 the Guangxi Zhuang Autonomous Region Nanning city six Hengxian Jing Zhen Guangxi Nongken sugar group Liangqi Sugar Co. Ltd. Patentee before: LIANGCI SUGAR MANUFACTURING Co.,Ltd. |