CN203529763U

CN203529763U - Limiter

Info

Publication number: CN203529763U
Application number: CN201320633945.8U
Authority: CN
Inventors: 高会平; 艾强; 刘德龙; 陈伟; 杨波; 徐海洋; 杨华清
Original assignee: Tianjin MCC20 Construction Co Ltd
Current assignee: Tianjin MCC20 Construction Co Ltd
Priority date: 2013-10-14
Filing date: 2013-10-14
Publication date: 2014-04-09
Anticipated expiration: 2023-10-14

Abstract

The utility model discloses a limiter. The limiter comprises a load lifting limiter, wherein the load lifting limiter comprises a control instrument and a sensor, the load lifting limiter is externally connected with a heavy hammer by a steel wire rope, the load lifting limiter is electrically connected with a power supply and a control line, the control line is externally connected with a lifting device ascending control circuit, the sensor is used for sensing the ascending height and the weight, and the control instrument controls the lifting device ascending control circuit to work or stop working by the control line. According to the limiter, a situation of interactive application of all limiting apparatus is improved, the damages such as winding and scratching on the machine are avoided, the wiring disorder on an electrical circuit is avoided, and the problem that the equipment failure rate such as misconnection and short circuit is increased is solved.

Description

A kind of killer

Technical field

The utility model relates to hoisting crane, relates in particular to a kind of killer being applied on hoisting crane.

Background technology

Now along with economic development and scientific and technological progress; in production and construction, use more and more electric block list two-beam type hoisting crane; for the safety guard-safeguard in using, require also more and more higher; various safety guards are more and more to be used, and wherein the most basic have load lifting limiter, a weight killer etc.

During practical application, weight is spacing is all installed in electric block list two-beam type crane hoisting steel rope fixed end with load lifting limiter, but electric block list two-beam type crane hoisting moving range is limited, cause steel rope fixed end narrow space, various limiting devices are all contained in this small space, have caused that circuit mixes, the mutual puzzlement such as lengthy and jumbled.

Utility model content

The utility model provides a kind of killer, and this killer has avoided the wiring on electric wiring to mix, and has reduced the fault rate of equipment, described below:

A kind of killer, comprise: load lifting limiter, described load lifting limiter comprises: control instrument and sensor, it is characterized in that, described load lifting limiter is by the external weight of steel rope, described load lifting limiter electric connection of power supply and control line, the external hoisting device rise control circuit of described control line; Described sensor is used for responding to rise height and weight, and described control instrument is controlled the work of described hoisting device rise control circuit or stopped by described control line.

The beneficial effect of the technical scheme that the utility model provides is: this killer has improved the situation of various limiting device interactive application, avoid causing be mechanically wound around, the organic damage such as scratch; Avoid causing the wiring on electric wiring to mix, the problem that misconnection, short circuit etc. are risen equipment failure rate occurs.

Accompanying drawing explanation

The main TV structure schematic diagram of a kind of killer that Fig. 1 provides for the utility model;

The internal wiring terminal figure of the killer that Fig. 2 provides for the utility model;

The side-looking structural representation of a kind of killer that Fig. 3 provides for the utility model;

The structural representation (without weight state) of the heavy hammer mechanism that Fig. 4 provides for prior art.

In accompanying drawing, the list of parts of each label representative is as follows:

1: load lifting limiter; 2: steel rope;

3: weight; 4: power supply;

5: control line; 6: pressing plate;

11: control instrument; 12: sensor;

31: reed; 32: contact.

The specific embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, below the utility model embodiment is described in further detail.

Wiring on electric wiring mixes, the fault rate of reduction equipment, the utility model embodiment provides a kind of killer, referring to Fig. 1 and Fig. 2, comprise: load lifting limiter 1, load lifting limiter 1 is by the external weight 3 of steel rope 2, load lifting limiter 1 electric connection of power supply 4 and control line 5(are that killer passes through the external hoisting device rise control circuit of control line 5, this hoisting device rise control circuit is the circuit of weight-lifting equipment inside, for ready-made circuit, conventionally known to one of skill in the art, the utility model embodiment does not repeat this).

Referring to Fig. 3, this killer is integrated into weight 3 in load lifting limiter 1, during installation, the sensor 12 of load lifting limiter 1 inside is fixed near steel rope 2, weight 3 naturally droops along steel rope 2, when suspension hook weight is overweight, the control instrument 11 of killer inside is reported to the police, and stops vertical motion; While touching weight 2 in suspension hook uphill process, vertical motion stops.

That is, during specific implementation, sensor 12 is for responding to rise height and weight, and control instrument 11 is controlled the work of hoisting device rise control circuit or stopped by control line 5.

Referring to Fig. 3 and Fig. 4, during practical application, load lifting limiter 1 is fixed on the fixed end of hoisting rope 2, fixing by pressing plate 6, weight 3 is arranged on steel rope 2, along steel rope 2, naturally droop, and adjust rising limiting altitude, now in killer bottom, the pull bar on machine is left behind, the reed 31 of weight 3 inside is pressed touching upper contact 32, now the close point of weight detecting mechanism and the close point of heavy hammer mechanism are serially connected, be connected to electric block list two-beam type crane control loop, when overweight, weight detecting mechanism close point disconnects, control loop is disconnected, when suspension hook rises to limiting altitude, the reed 31 of bottom mechanism disconnects, and control loop is disconnected, and load lifting limiter 1 is quit work.

The utility model embodiment to the model of each device except do specified otherwise, the model of other devices does not limit, as long as can complete the device of above-mentioned functions, all can.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a killer, comprise: load lifting limiter, described load lifting limiter comprises: control instrument and sensor, it is characterized in that, described load lifting limiter is by the external weight of steel rope, described load lifting limiter electric connection of power supply and control line, the external hoisting device rise control circuit of described control line; Described sensor is used for responding to rise height and weight, and described control instrument is controlled the work of described hoisting device rise control circuit or stopped by described control line.