CN2752224Y - Electric calabash grab - Google Patents
Electric calabash grab Download PDFInfo
- Publication number
- CN2752224Y CN2752224Y CN 200420090258 CN200420090258U CN2752224Y CN 2752224 Y CN2752224 Y CN 2752224Y CN 200420090258 CN200420090258 CN 200420090258 CN 200420090258 U CN200420090258 U CN 200420090258U CN 2752224 Y CN2752224 Y CN 2752224Y
- Authority
- CN
- China
- Prior art keywords
- grab
- utility
- model
- electric block
- grab bucket
- 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
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- Control And Safety Of Cranes (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model relates to an electric hoist grab, which belongs to a crane. The utility model can be used for the crane, a winch, a loading hanging element or a device of a winch or a pulley. The utility model is characterized in that an electronic hoist is arranged under an upper cross bearing beam of the grab; a steel cable on a reel drum can be coupled with a draw rod of a force limiter arranged above the cross bearing beam through a pulley wheel of the grab. When the grab is in overloading, the steel cable can make a press spring drive a small press rod to press a limit switch through the draw rod; thereby, the motor can stop working. The utility model uses the electric hoist as a power system of a single rope grab and is provided with a force limiting device; thereby, the utility model has the advantages that structure is compact, the size is small and the damage of the electric hoist caused by the overload of the grab can be prevented.
Description
Technical field
It is the single rope grab of power with electric block that the utility model relates to a kind of, belongs to hoisting crane; The load suspension member or the device that are used for hoisting crane, capstan engine, winch or coaster.
Background technology
In known technology, dynamic single rope grab example: motor grab, hydraulic grab, pneumatic bucket etc. generally will be equipped with systems such as a cover power, transmission, and routine motor grab will be equipped with motor, drop-gear box, Pulley, magnet stopper, cable drum etc.Its weak point is that systems such as this cover power, transmission are not only huge, heavy, and more complicated, and some system lacks overload protection, and the integral body that usually can influence grab bucket grasps effect.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of current collection machine, drop-gear box, drg, cable drum etc. are provided is the power system of the electric block of one as single rope grab, and force limiting device is housed, prevents the grab bucket overload and the damage electric block.Grab bucket not only compact conformation, volume of electric block is little, and has the electric block of enough power to be provided to grab bucket, and it is more extensive to make grab bucket use adaptability for working condition, and it is lighter to conduct oneself with dignity, and can improve the handling efficiency of grab bucket.
The purpose of this utility model can reach by following measure:
Single rope grab has bucket body, strut, through beam, deck beam, below the grab bucket deck beam electric block is installed, and the steel rope on its reel links by grab bucket pulley and the pull bar that is installed in the top force-limiting device of deck beam.Rope guide, spacing left block, spacing right block, position-limited lever, cutoff device, operating switch box etc. are installed on the electric block.Stage clip, pull bar, limit switch, little depression bar etc. are installed on the force-limiting device,, prevent the grab bucket overload and the damage electric block in order to the grasp force of adjusting and placing restrictions on grab bucket.
Compared with prior art, the utility model has the advantages that: available electric block is as the power system of single rope grab, makes single rope grab have that deadweight is light, advantages of simple structure and simple.And having the force limiting device that prevents to grab bucket overload and damage electric block, making that the grab bucket fault is few, degree of utilization is high, can improve the handling efficiency of grab bucket.
Description of drawings
Fig. 1, Fig. 2 are the electric block grab buckets that the utility model proposes.
Fig. 3 is the force-limiting device that the utility model proposes.
Among the figure: the spacing right block of the spacing left block of the little depression bar of bucket body (1) strut (2) through beam (3) deck beam (4) limit switch (5) (6) force-limiting device (7) stage clip (8) pull bar (9) (10) rope guide (11) (12) position-limited lever (13) electric block (14) cutoff device (15) operating switch box (16) steel rope (17)
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing:
Among Fig. 1, Fig. 2, bucket body (1), strut (2), through beam (3), deck beam (4) connect with bearing pin, form a single rope grab, with bolt electric block (14) is installed in the below of grab bucket deck beam (4), the steel rope (17) on electric block (14) reel links to each other with the pull bar (9) of force-limiting device (7) above being installed in deck beam (4) by the rope guide (11) and the pulley of grabbing bucket.Spacing right block (12) is adjusted to grabs bucket when closing, and can be advanced into position-limited lever (13) to the right and make cutoff device (15) outage, and motor quits work.Spacing left block (10) is adjusted to grabs bucket when opening up into certain position, can be pulled to position-limited lever (13) left and make cutoff device (15) outage, and motor quits work.The work that the staff grabs bucket with operating switch box (16) control, motor is powered by cable.
Among Fig. 3, force-limiting device (7) mainly comprises limit switch (5), little depression bar (6), stage clip (8), pull bar (9), with nut adjust stage clip (8) to when the grab bucket close after, because reasons such as malfunctioning or steel rope (17) long-term use of the location primary screw of spacing right block (12) is elongated in the long-term use process, rope guide (11) can not be advanced into position-limited lever (13) to the right exactly and make cutoff device (15) outage, or the grab bucket extracting is measured when excessive, then steel rope (17) makes stage clip (8) drive little depression bar (6) by pull bar (9) and pushes down limit switch (5), and motor quits work.Steel rope (17) and motor etc. just can not damage because of overload like this.
The electric block grab bucket is in loading and unloading operation, and the staff carries out work with the grab bucket that operating switch box (16) control is made up of bucket body (1), strut (2), through beam (3), deck beam (4), electric block (14), force-limiting device (7) etc.When beginning to grab goods, steel rope (17) continues to rise and drives rope guide (11) the spacing right block of promotion (12) and moves right, and makes cutoff device (15) outage until position-limited lever (13) is advanced into to the right, and motor quits work, and grabs full goods closure this moment; Make cutoff device (15) outage when rope guide (11) can not be advanced into position-limited lever (13) to the right exactly, then steel rope (17) makes stage clip (8) drive little depression bar (6) by pull bar (9) and pushes down limit switch (5), and motor quits work.During unloading, steel rope (17) decline and drive rope guide (11) promotion left limit block (10) are pulled to position-limited lever (13) left and make cutoff device (15) outage, and motor quits work.This moment, grab bucket opened up into to a certain degree, and goods is unsnatched.Make cutoff device (15) outage when rope guide (11) can not be advanced into position-limited lever (13) to the right exactly, then steel rope (17) makes stage clip (8) drive little depression bar (6) by pull bar (9) and pushes down limit switch (5), and motor quits work.
Claims (2)
1. electric block grab bucket, having bucket body (1), strut (2), through beam (3), deck beam (4), electric block (14), operating switch box (16) is characterized in that: electric block (14) is installed in the below at grab bucket deck beam (4), and the steel rope on its reel (17) links by grab bucket pulley and the pull bar (9) that is installed in the top force-limiting device (7) of deck beam (4).
2. electric block grab bucket according to claim 1 is characterized in that being equipped with on the described force-limiting device (7) stage clip (8), pull bar (9), limit switch (5), little depression bar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090258 CN2752224Y (en) | 2004-09-20 | 2004-09-20 | Electric calabash grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090258 CN2752224Y (en) | 2004-09-20 | 2004-09-20 | Electric calabash grab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752224Y true CN2752224Y (en) | 2006-01-18 |
Family
ID=35913633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090258 Expired - Fee Related CN2752224Y (en) | 2004-09-20 | 2004-09-20 | Electric calabash grab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752224Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398853A (en) * | 2010-09-14 | 2012-04-04 | 沈阳铝镁设计研究院有限公司 | Power-free grab bucket |
-
2004
- 2004-09-20 CN CN 200420090258 patent/CN2752224Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398853A (en) * | 2010-09-14 | 2012-04-04 | 沈阳铝镁设计研究院有限公司 | Power-free grab bucket |
| CN102398853B (en) * | 2010-09-14 | 2013-05-01 | 沈阳铝镁设计研究院有限公司 | Power-free grab bucket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |