CN209872169U - Safety device of electric crane - Google Patents
Safety device of electric crane Download PDFInfo
- Publication number
- CN209872169U CN209872169U CN201822064262.0U CN201822064262U CN209872169U CN 209872169 U CN209872169 U CN 209872169U CN 201822064262 U CN201822064262 U CN 201822064262U CN 209872169 U CN209872169 U CN 209872169U
- Authority
- CN
- China
- Prior art keywords
- pulley
- travel switch
- hoisting
- buffer spring
- rope
- 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.)
- Expired - Fee Related
Links
- 230000006378 damage Effects 0.000 abstract description 9
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000009347 mechanical transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Jib Cranes (AREA)
Abstract
A safety device of an electric crane comprises a pulley, a baffle, a travel switch and a buffer spring, wherein the pulley is arranged between a fixed rope and a movable rope of a hoisting device, a hoisting hook is arranged on the pulley, and the baffle is fixedly arranged at the top of the pulley; the travel switch with buffer spring all install in decide on the rope, buffer spring's top with the travel switch bottom touch the stroke pole and meet. The utility model discloses can effectually adjust the travel switch position at will according to safe jack-up height, can prevent effectively that the mechanical transmission inertia of pulley hoist in-process from bumping buffer spring to travel switch's destruction, through-hole on the baffle can make accurate the fender when the hoisting rope freely passes through, can automatic cutout power supply when taking place the hoist, avoid damaging because of the hoisting hook that the overwinding raises and leads to and the hoisting equipment that the thing bumps and take place with the hoist, accidents such as bodily injury, certain value of popularization and application has.
Description
Technical Field
The utility model relates to a hoist, in particular to electric crane safety device.
Background
Along with the sustainable high-speed development of economy in China, hoisting equipment is more and more widely applied, and in order to prevent misoperation or equipment limiting failure and avoid the problems of equipment damage, personal injury and the like caused by collision between a hoisting hook and a hoisting object caused by overwinding of a hoisting steel wire rope and a crane, a safety device with reliable performance is very required to be installed at the hook of the crane.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric crane safety device, its simple structure, convenient popularization to above-mentioned among the prior art not enough.
In order to achieve the above object, the utility model adopts the following technical scheme:
a safety device of an electric crane comprises a pulley, a baffle, a travel switch and a buffer spring, wherein the pulley is arranged between a fixed rope and a movable rope of a hoisting device, a hoisting hook is arranged on the pulley, and the baffle is fixedly arranged at the top of the pulley; the travel switch with buffer spring all install in decide on the rope, buffer spring's top with the travel switch bottom touch the stroke pole and meet.
Preferably, the baffle is provided with a through hole, and the fixed rope is inserted into the through hole.
Preferably, the travel switch is electrically connected to a general control power supply of the hoisting equipment.
The utility model discloses can effectually adjust the travel switch position at will according to safe jack-up height, can prevent effectively that the mechanical transmission inertia of pulley hoist in-process from bumping buffer spring to travel switch's destruction, through-hole on the baffle can make accurate the fender when the hoisting rope freely passes through, can automatic cutout power supply when taking place the hoist, avoid damaging because of the hoisting hook that the overwinding raises and leads to and the hoisting equipment that the thing bumps and take place with the hoist, accidents such as bodily injury, certain value of popularization and application has.
Drawings
Fig. 1 is a schematic structural view of the present invention;
1-pulley, 2-lifting hook, 3-baffle, 4-through hole, 5-travel switch, 6-touch travel rod, 7-buffer spring, 8-lifting equipment, 9-fixed rope and 10-movable rope.
Detailed Description
In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.
As shown in fig. 1, the safety device of the electric crane comprises a pulley 1, a baffle 3, a travel switch 5 and a buffer spring 7, wherein the pulley 1 is arranged between a fixed rope 9 and a movable rope 10 of a hoisting device 8, a hoisting hook 2 is arranged on the pulley 1, and the baffle 3 is fixedly arranged at the top of the pulley 1; the baffle 3 is provided with a through hole 4, and a fixed rope 9 is inserted into the through hole 4; travel switch 5 and buffer spring 7 are all installed on deciding rope 9, and travel switch 5 electric connection is in lifting means 8's total control power, and the top of buffer spring 7 meets with the stroke pole 6 that touches of travel switch 5 bottom.
The utility model discloses an appearance and size can be according to size, the position adjustment of device, but structure and principle are unchangeable.
The installation the utility model discloses the time, according to the safe spacing height of amortization earlier, fix travel switch 5 on lifting equipment 8 decide rope 9 and make its electric connection in total control power, again at travel switch 5 bottom installation fixed buffer spring 7, make 7 tops of buffer spring touch stroke pole 6 with bumping of travel switch 5 and meet, then at 1 top mounting baffle 3 of pulley, make and decide rope 9 and pass from through-hole 4 of baffle 3.
After a travel switch 5 device is arranged and fixed according to the actual hoisting height, a heavy object is hung on a hoisting hook 2, a pulley 1 and the heavy object move upwards along with the hoisting of a movable rope 10, when the heavy object reaches a set safety position, the upper surface of a baffle 3 on the pulley 1 touches a buffer spring 7, the buffer spring 7 is compressed along with the increase of the hoisting force, the compressed elastic force is transmitted to the travel switch 5, and the travel switch 5 automatically cuts off a power supply.
The utility model discloses can effectually adjust travel switch 5 positions at will according to safe jack-up height, can prevent effectively that 1 hoist in-process of pulley's mechanical transmission inertia from to travel switch 5's destruction, through-hole 4 on the baffle 3 can make the jack-up rope accurately keep off when freely passing through and touch buffer spring 7, can automatic cutout power supply when taking place the hoist, avoid lifting hook 2 that leads to because of the overwinding raises and the hoisting equipment 8 that thing and hoist bump takes place damages, accidents such as personal injury, certain value of popularization and application has.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The safety device of the electric crane is characterized by comprising a pulley (1), a baffle (3), a travel switch (5) and a buffer spring (7), wherein the pulley (1) is arranged between a fixed rope (9) and a movable rope (10) of a hoisting device (8), a hoisting hook (2) is arranged on the pulley (1), and the baffle (3) is fixedly arranged at the top of the pulley (1); travel switch (5) with buffer spring (7) all install in decide on rope (9), the top of buffer spring (7) with travel switch (5) bottom touches journey pole (6) and meets.
2. An electric hoist safety device as claimed in claim 1, wherein: the baffle (3) is provided with a through hole (4), and the fixed rope (9) is inserted into the through hole (4).
3. An electric hoist safety device as claimed in claim 1, wherein: the travel switch (5) is electrically connected to a master control power supply of the hoisting equipment (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064262.0U CN209872169U (en) | 2018-12-10 | 2018-12-10 | Safety device of electric crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064262.0U CN209872169U (en) | 2018-12-10 | 2018-12-10 | Safety device of electric crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209872169U true CN209872169U (en) | 2019-12-31 |
Family
ID=68945933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822064262.0U Expired - Fee Related CN209872169U (en) | 2018-12-10 | 2018-12-10 | Safety device of electric crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209872169U (en) |
-
2018
- 2018-12-10 CN CN201822064262.0U patent/CN209872169U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |