CN108249281B - Overload protection device for lifting - Google Patents
Overload protection device for lifting Download PDFInfo
- Publication number
- CN108249281B CN108249281B CN201810314325.5A CN201810314325A CN108249281B CN 108249281 B CN108249281 B CN 108249281B CN 201810314325 A CN201810314325 A CN 201810314325A CN 108249281 B CN108249281 B CN 108249281B
- Authority
- CN
- China
- Prior art keywords
- shell
- supporting plate
- plate body
- lifting hook
- protection device
- 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
- 238000004804 winding Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
-
- 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
- B66D1/12—Driving gear incorporating electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to an overload protection device for lifting, which comprises a main beam, an electric hoist body arranged on the main beam and a winding drum arranged on the electric hoist body, wherein a steel wire rope is wound on the winding drum, the steel wire rope is connected with a lifting hook component, the lifting hook component comprises a shell, a movable pulley and a lifting hook, the movable pulley is connected with the shell, the shell comprises a shell body, a supporting plate arranged on the shell body, a controller and a display screen, the supporting plate comprises a supporting plate body and a plurality of supporting feet fixed at the bottom end of the supporting plate body, at least one weight sensor is arranged in the supporting plate body, the display screen and the at least one weight sensor are connected with the controller, and a universal wheel is arranged at the bottom of the lifting hook. The invention is convenient to deflect the shell upwards through the sliding of the universal wheel, so that the shell is horizontally placed on the ground, the time and the labor are saved, the weight of a to-be-hoisted object is judged before hoisting, overload is prevented, the damage to the electric hoist is avoided, and the service life of the electric hoist is prolonged.
Description
Technical Field
The invention relates to an overload protection device for hoisting.
Background
The crane is a multi-action hoisting machine for vertically hoisting and horizontally carrying heavy objects in a certain range, and is widely applied to the fields of machinery, chemical industry, energy sources and the like. The electric hoist is used as a lifting device, and is widely used in working condition enterprises, storage wharfs and other places because of the characteristics of small volume, light dead weight, simple operation, convenient use and the like. In order to prevent overload of the electric hoist, an overload protection device is generally additionally arranged on the electric hoist, but the devices cannot carry out overload prompt before the electric hoist is hoisted, and the overload is known after the electric hoist lifts a heavy object, so that the electric hoist can be damaged for a long time because the electric hoist is already subjected to the overload heavy object, and the service life of the electric hoist is shortened.
Disclosure of Invention
The overload protection device for the hoisting has the advantages of overcoming the defects of the prior art and being simple in structure.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a hoist is with preventing overload device, includes the girder, installs electric block body on the girder and install reel on the electric block body, the winding has wire rope on the reel, wire rope is connected with the lifting hook subassembly, the lifting hook subassembly include the shell, with movable pulley and the lifting hook that the shell is connected, the shell includes the shell body, installs backup pad, controller and the display screen on the shell body, the backup pad includes the backup pad body, fixes a plurality of supporting legs of backup pad body bottom, be provided with at least one weight sensor in the backup pad body, display screen, at least one weight sensor all with the controller is connected, the universal wheel is installed to the bottom of lifting hook.
In a preferred embodiment of the present invention, the overload protection device for lifting further includes four weight sensors, where the four weight sensors are respectively disposed around the support plate body.
In a preferred embodiment of the present invention, the overload protection device for lifting further includes a support shaft connected between the movable pulley and the housing body, the support shaft penetrates through the support plate body, and a stop block is fixed at an end of the support shaft near the support plate body.
In a preferred embodiment of the present invention, the overload protection device for lifting further includes the supporting plate body having a diamond shape.
In a preferred embodiment of the present invention, the overload protection device for lifting further includes a warning lamp mounted on the housing body, and the warning lamp is connected with the controller.
In a preferred embodiment of the present invention, the overload protection device for lifting further includes that the warning light is an acousto-optic warning light.
The invention solves the defects existing in the background technology, has simple structure and convenient use, and can conveniently deflect the shell upwards through the sliding of the universal wheels, so that the shell is horizontally arranged on the ground, time and labor are saved, the shell is convenient and quick, meanwhile, the distance between the supporting plate body and the ground can be balanced through a plurality of supporting feet, the weighing accuracy of the object to be hoisted is improved, the misjudgment is avoided, the working efficiency is improved, meanwhile, the weight of the object to be hoisted is judged before hoisting, overload is prevented, the damage to the electric hoist is avoided, and the service life of the electric hoist is prolonged.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a front view of a preferred embodiment of the present invention;
fig. 2 is a front view of the support plate of the preferred embodiment of the present invention lying on the ground.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the invention, which are presented only by way of illustration, and thus show only the structures that are relevant to the invention.
As shown in fig. 1 and 2, an overload protection device for lifting comprises a main beam 10, an electric hoist body 12 mounted on the main beam 10, and a winding drum 14 mounted on the electric hoist body 12, wherein a steel wire rope 16 is wound on the winding drum 14, the steel wire rope 16 is connected with a lifting hook assembly, the lifting hook assembly comprises a shell 18, a movable pulley 20 connected with the shell 18 and a lifting hook 22, the shell 18 comprises a shell body 24, a supporting plate 26 mounted on the shell body 24, a controller 28 and a display screen 30, the supporting plate 26 comprises a supporting plate body 32, a plurality of supporting feet 34 fixed at the bottom end of the supporting plate body 32, at least one weight sensor 36 is arranged in the supporting plate body 32, the display screen 30 and at least one weight sensor 36 are connected with the controller 28, a universal wheel 38 is mounted at the bottom of the lifting hook 22, the shell 18 is conveniently biased upwards through the sliding of the universal wheel 38, so that the lifting hook assembly is on the ground, time and labor are saved, and convenience and rapidness are realized.
In the invention, the number of the weight sensors 36 is preferably four, and the four weight sensors 36 are respectively arranged at the periphery of the supporting plate body 32, so that the weighing accuracy is further improved.
In the invention, the support shaft 40 is preferably connected between the movable pulley 20 and the shell body 24, the support shaft 40 passes through the support plate body 32, the end part of the support shaft 40, which is close to the support plate body 32, is fixedly provided with the stop block 42, and the support plate body 32 is in pin joint with the shell body 24, so that the position of the support plate body 32 is conveniently adjusted, and the interference of the lifting hook 22 on the hoisting of heavy objects is avoided.
The present invention preferably has a diamond shape for the support plate body 32 to avoid interference with the wire rope 16 and to facilitate placement of the object to be hoisted on the support plate body 42.
In order to inform the operator in time, the invention preferably has a warning light 44 mounted on the housing body 24, the warning light 44 being connected to the controller 28. Further preferably, the warning lamp 44 is an audible and visual warning lamp, and the warning effect is good.
When the lifting hook is used, the lifting hook 22 is pulled downwards by hand, the shell 18 is upwards biased by the arrangement of the universal wheels 38 at the bottom of the lifting hook 22, the shell 18 is horizontally placed on the ground, an object to be lifted is placed on the supporting plate body 32, the four weight sensors 36 transmit collected weight signals to the controller 28, the weight is displayed on the display screen 30, if the weight is not overloaded, the lifting hook 22 is hooked on the object to be lifted, and the steel wire rope 16 is driven to move upwards through the winding drum 14; if overloaded, the warning light 44 emits an audible and visual alarm.
The above-described preferred embodiments according to the present invention are intended to suggest that, from the above description, various changes and modifications can be made by the person skilled in the art without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (4)
1. The utility model provides a hoisting overload protection device, includes the girder, installs electric block body on the girder and install reel on the electric block body, the winding has wire rope on the reel, wire rope is connected with the lifting hook subassembly, the lifting hook subassembly include the shell, with movable pulley and the lifting hook that the shell is connected, its characterized in that: the shell comprises a shell body, a supporting plate, a controller and a display screen, wherein the supporting plate is arranged on the shell body and comprises a supporting plate body and a plurality of supporting feet fixed at the bottom end of the supporting plate body, at least one weight sensor is arranged in the supporting plate body, the display screen and the at least one weight sensor are connected with the controller, and universal wheels are arranged at the bottom of the lifting hook;
the number of the weight sensors is four, and the four weight sensors are respectively arranged on the periphery of the supporting plate body; and a support shaft is connected between the movable pulley and the shell body, penetrates through the support plate body, and a stop block is fixed at the end part of the support shaft, which is close to the support plate body.
2. The overload protection device for hoisting according to claim 1, wherein: the supporting plate body is diamond-shaped.
3. The overload protection device for hoisting according to claim 1, wherein: and the shell body is provided with a warning lamp, and the warning lamp is connected with the controller.
4. The overload protection device for hoisting as claimed in claim 3, wherein: the warning lamp is an acousto-optic warning lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314325.5A CN108249281B (en) | 2018-04-08 | 2018-04-08 | Overload protection device for lifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314325.5A CN108249281B (en) | 2018-04-08 | 2018-04-08 | Overload protection device for lifting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108249281A CN108249281A (en) | 2018-07-06 |
| CN108249281B true CN108249281B (en) | 2023-12-26 |
Family
ID=62748091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810314325.5A Active CN108249281B (en) | 2018-04-08 | 2018-04-08 | Overload protection device for lifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108249281B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986111A (en) * | 2010-10-13 | 2011-03-16 | 济南轨道交通装备有限责任公司 | Weighing system for counter-balancing blades of wind turbine generator |
| CN201993156U (en) * | 2010-08-25 | 2011-09-28 | 福建科杰起重机械有限公司 | Vehicle track scale |
| CN203112400U (en) * | 2013-03-04 | 2013-08-07 | 叶振良 | Electric chain hoist with digital display lifting weight of lower lifting hook |
| CN103848365A (en) * | 2012-12-05 | 2014-06-11 | 朱玉静 | Weighing electric hoist |
| CN208120562U (en) * | 2018-04-08 | 2018-11-20 | 苏州库力铁重工有限公司 | It rises and reuses overload protection device |
-
2018
- 2018-04-08 CN CN201810314325.5A patent/CN108249281B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201993156U (en) * | 2010-08-25 | 2011-09-28 | 福建科杰起重机械有限公司 | Vehicle track scale |
| CN101986111A (en) * | 2010-10-13 | 2011-03-16 | 济南轨道交通装备有限责任公司 | Weighing system for counter-balancing blades of wind turbine generator |
| CN103848365A (en) * | 2012-12-05 | 2014-06-11 | 朱玉静 | Weighing electric hoist |
| CN203112400U (en) * | 2013-03-04 | 2013-08-07 | 叶振良 | Electric chain hoist with digital display lifting weight of lower lifting hook |
| CN208120562U (en) * | 2018-04-08 | 2018-11-20 | 苏州库力铁重工有限公司 | It rises and reuses overload protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108249281A (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109853512A (en) | Automatic detachable heavy dynamic penetration instrument | |
| KR102045221B1 (en) | Telescoping case and lifting method of tower crane using the same | |
| KR20090069823A (en) | Safety control system of crane using three roller tensiometer | |
| CN114852866A (en) | Detection apparatus for electric block | |
| CN101628692A (en) | Moment limiter for mini engineering crane | |
| CN108249281B (en) | Overload protection device for lifting | |
| CN209758878U (en) | Hoisting accessory for mechanical equipment | |
| CN202245897U (en) | Drum lifting height limiting device | |
| CN103241672B (en) | A kind of winding plant of dynamic compaction machinery and dynamic compaction machinery | |
| CN210741385U (en) | Rotor hoisting monitoring device | |
| CN204823856U (en) | Hoist overload restraining device | |
| CN104237010A (en) | Multifunctional concrete electric pole mechanical property detection platform | |
| CN207684781U (en) | A kind of electronic winch for ship equipment | |
| CN105836650A (en) | Electric hoist with weighing function | |
| CN201458610U (en) | Moment limiter for small-sized engineering crane | |
| CN208120562U (en) | It rises and reuses overload protection device | |
| CN205676072U (en) | A kind of small hoist holding tool | |
| CN108657981A (en) | A kind of improved safety protection lifting equipment | |
| JP6436820B2 (en) | Wear gauge and inspection method | |
| CN210944645U (en) | Crane lifting height limiting device | |
| CN104085820A (en) | Automobile jack safe to use | |
| CN209740542U (en) | Crane | |
| CN211224967U (en) | Protection system for safe operation of hoisting type garbage truck | |
| KR101121689B1 (en) | Crane load sensor | |
| CN214903266U (en) | Movable high-altitude measuring and reporting lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |