CN201647839U - Crown block counterweight limit device - Google Patents

Crown block counterweight limit device Download PDF

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Publication number
CN201647839U
CN201647839U CN2009202887601U CN200920288760U CN201647839U CN 201647839 U CN201647839 U CN 201647839U CN 2009202887601 U CN2009202887601 U CN 2009202887601U CN 200920288760 U CN200920288760 U CN 200920288760U CN 201647839 U CN201647839 U CN 201647839U
Authority
CN
China
Prior art keywords
weight
steel rope
counterweight
suspension hook
limit switch
Prior art date
Application number
CN2009202887601U
Other languages
Chinese (zh)
Inventor
王汉桥
郑昌德
王勇
陈勇
邓国斌
Original Assignee
武汉钢铁(集团)公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 武汉钢铁(集团)公司 filed Critical 武汉钢铁(集团)公司
Priority to CN2009202887601U priority Critical patent/CN201647839U/en
Application granted granted Critical
Publication of CN201647839U publication Critical patent/CN201647839U/en

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Abstract

The utility model relates to a crown block counterweight limit device, which comprises a counterweight (2), a counterweight steel wire rope (3) and a limit switch (6), wherein the counterweight steel wire rope (3) is connected with the limit switch (6), and the counterweight (2) consists of a rectangular steel plate (5) and two shackles (4) which are arranged at two ends of the rectangular steel plate (5). As the counterweight steel wire rope can not be wound with a lifting hook steel wire rope, the crown block counterweight limit device avoids fault that the counterweight is coiled on a crown block, and is convenient in maintenance and installation.

Description

A kind of overhead traveling crane weight inhibiting device

Technical field

The utility model relates to the control setup of overhead traveling crane, particularly overhead traveling crane weight inhibiting device.

Background technology

Overhead traveling crane is that iron and steel enterprise guarantees to produce the important tool of normally carrying out, for guaranteeing the overhead traveling crane safe operation, avoid causing human casualty accident, overhead traveling crane is furnished with rising end position killer on all, promptly limit the switch of the position that hoists, suspender is risen when being raised to end position, cut off motor power and main power source automatically, its effect is to prevent that suspension hook or other suspender from crossing elevator, breaks steel rope and suspender is fallen cause the accident.In order to guarantee safety, the overhead traveling crane lifting mechanism is generally adorned two limit switches, and one is spiral, one is weight hammer type, is arranged on the diverse location, controls different circuit interrupting devices respectively, avoid because the malfunctioning accident of rushing to summit that causes of limit switch plays the double insurance effect.

The mounting means of overhead traveling crane weight inhibiting device as shown in Figure 1 at present.Its principle of work is: overhead traveling crane weight inhibiting device mainly is made of weight 2, weight steel rope 3 and limit switch 6, when suspension hook 7 plays the rising end position, weight 2 is run on suspension hook 7 tops, by weight steel rope 3 limit switch 6 is opened, make the lifting mechanism outage, suspension hook 7 is no longer to the direction operation that hoists.When this overhead traveling crane weight inhibiting device is installed, suspension hook steel rope 1 passes from the collar of 40mm * 50mm, suspension hook steel rope 1 always has and weight or collar friction at 1,1 wearing and tearing of suspension hook steel rope are accelerated, starting during operation, braking too quickly too fast or askew skew to hang can cause suspension hook trip pendulum, the weight swing.And there is butter on suspension hook steel rope 1 surface, easily making fixedly, weight steel rope 3 is intertwined with suspension hook steel rope 1, make the eccentric hammer on the limit switch be in strained condition all the time, even rising, suspension hook is raised to the rising end position, run into weight and can not make limit switch 6 actions, do not have safety effect.And weight can be rolled onto on the fixed pulley with suspension hook steel rope 1, causes steel rope and weight to block on fixed pulley, damages fixed pulley when serious.

The utility model content

Technical problem to be solved in the utility model is: for overcoming above-mentioned deficiency, a kind of overhead traveling crane weight inhibiting device is provided, the weight steel rope of this device can not be intertwined with the suspension hook steel rope, has avoided weight to be rolled onto fault on the fixed pulley and easy maintenance and installation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of overhead traveling crane weight inhibiting device, it comprises weight, weight steel rope and limit switch, weight is connected with limit switch by the weight steel rope; Weight is made up of oblong steel plate and two shackles that are separately positioned on oblong steel plate two ends.

In the such scheme, an end of described weight steel rope is connected with the center of oblong steel plate, and the other end is connected with limit switch.

Principle of work of the present utility model is: weight is made up of oblong steel plate and two shackles that are separately positioned on oblong steel plate two ends, during use, the suspension hook steel rope on suspension hook both sides passes from two shackle hollow sectors respectively, no matter how hang thing swings, the weight steel rope can not be intertwined with the suspension hook steel rope yet, avoid weight to be rolled onto fault on the fixed pulley, and used shackle, easy maintenance and installation.

The utility model is also advantageous in that:

1, shackle is easy to process, and the hollow sectors of shackle can be done greatly relatively, and the surface of curved ring easily processing is smooth, reduces the suspension hook steel rope abrasion, and the suspension hook steel rope improves service life greatly.

2, an end of weight steel rope is connected good stability with the center of oblong steel plate.

Description of drawings

Fig. 1 is the structure scheme of installation of existing overhead traveling crane weight inhibiting device

Fig. 2 is the structure scheme of installation of the utility model overhead traveling crane weight inhibiting device embodiment

Fig. 3 is the structural representation of weight

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

The utility model overhead traveling crane weight inhibiting device embodiment as shown in Figure 2, it comprises weight 2, weight steel rope 3 and limit switch 6, weight 2 is connected with limit switch 6 by weight steel rope 3; Weight 2 is made up of oblong steel plate 5 and two shackles 4 that are separately positioned on oblong steel plate 5 two ends.One end of described weight steel rope 3 is connected with the center of oblong steel plate 5, and the other end is connected with limit switch 6.

As shown in Figure 3, the hollow sectors of described shackle 4 is hollowed out by oblong steel plate 5 and forms, and shackle 4 inside faces are smooth, through bakingout process, strengthens shackle toughness.

The principle of work of present embodiment is: during use, the suspension hook steel rope 1 on suspension hook 7 both sides passes from two shackle 4 hollow sectors respectively, when suspension hook 7 rises to certain position, weight 2 is run on suspension hook 7 tops, by weight steel rope 3 limit switch 6 is opened, make the lifting mechanism outage, suspension hook 7 no longer rises.

Claims (2)

1. overhead traveling crane weight inhibiting device, it comprises weight (2), weight steel rope (3) and limit switch (6), weight (2) is connected with limit switch (6) by weight steel rope (3); It is characterized in that: weight (2) is made up of oblong steel plate (5) and two shackles (4) of being separately positioned on oblong steel plate (5) two ends.
2. overhead traveling crane weight inhibiting device according to claim 1 is characterized in that: an end of described weight steel rope (3) is connected with the center of oblong steel plate (5), and the other end is connected with limit switch (6).
CN2009202887601U 2009-12-04 2009-12-04 Crown block counterweight limit device CN201647839U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202887601U CN201647839U (en) 2009-12-04 2009-12-04 Crown block counterweight limit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202887601U CN201647839U (en) 2009-12-04 2009-12-04 Crown block counterweight limit device

Publications (1)

Publication Number Publication Date
CN201647839U true CN201647839U (en) 2010-11-24

Family

ID=43113069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202887601U CN201647839U (en) 2009-12-04 2009-12-04 Crown block counterweight limit device

Country Status (1)

Country Link
CN (1) CN201647839U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102295239A (en) * 2011-08-31 2011-12-28 无锡汇力机械制造有限公司 Device for limiting lifting attitude of winding drum
CN102358574A (en) * 2011-10-17 2012-02-22 太原重工股份有限公司 Lifter hoisting mechanism and limit switch assembly thereof
CN102358573A (en) * 2011-10-17 2012-02-22 太原重工股份有限公司 Lifting mechanism of hoisting equipment and limit switch assembly thereof
CN102897670A (en) * 2012-10-12 2013-01-30 中国葛洲坝集团股份有限公司 Spring type safety limiting caution device for lifting rope of gantry crane
CN105776029A (en) * 2016-04-17 2016-07-20 昆山克鲁克机电设备有限公司 Counter weight type hoisting limiting device of crane

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102295239A (en) * 2011-08-31 2011-12-28 无锡汇力机械制造有限公司 Device for limiting lifting attitude of winding drum
CN102358574A (en) * 2011-10-17 2012-02-22 太原重工股份有限公司 Lifter hoisting mechanism and limit switch assembly thereof
CN102358573A (en) * 2011-10-17 2012-02-22 太原重工股份有限公司 Lifting mechanism of hoisting equipment and limit switch assembly thereof
CN102358573B (en) * 2011-10-17 2014-05-28 太原重工股份有限公司 Lifting mechanism of hoisting equipment and limit switch assembly thereof
CN102897670A (en) * 2012-10-12 2013-01-30 中国葛洲坝集团股份有限公司 Spring type safety limiting caution device for lifting rope of gantry crane
CN102897670B (en) * 2012-10-12 2014-12-10 中国葛洲坝集团股份有限公司 Spring type safety limiting caution device for lifting rope of gantry crane
CN105776029A (en) * 2016-04-17 2016-07-20 昆山克鲁克机电设备有限公司 Counter weight type hoisting limiting device of crane

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20161204

CF01 Termination of patent right due to non-payment of annual fee