CN2373424Y

CN2373424Y - Windbreak device for track-type large crane

Info

Publication number: CN2373424Y
Application number: CN 99207870
Authority: CN
Inventors: 张占成
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-16
Filing date: 1999-04-16
Publication date: 2000-04-12
Anticipated expiration: 2009-04-16

Abstract

The utility model belongs to the field of crane safety protection. The utility model comprises a flat plate trolley and an eccentric fixture, wherein the flat plate trolley is connected with a large crane by connecting members and can walk on a steel rail, and the eccentric fixture is composed of an eccentric wheel, a wheel shaft, a connecting rod, a slide block, an electric pushing rod and an electric machine which are connected orderly. The flat plate is provided with a pair of holes, and the eccentric wheel is arranged in the holes. The middle part of the flat plate is provided with a groove hole, and the slide block is arranged in the groove hole. The utility model has the characteristics of random and fast response, simple structure and safety. The utility model is applicable to any rail type large crane.

Description

Rail mounted goliath wind-proof device

The utility model belongs to crane safety protection field, particularly a kind of rail mounted goliath wind-proof device.

Wind energy can be human work done, also can bring disaster.96.15 number hurricane be the Port of Zhanjiang particularly hoisting crane caused massive losses; The hoisting crane that the PORT OF TIANJIN weighs more than 700 ton, be worth more than 400 ten thousand dollars is blown off in the sea, nothing but one, two examples in the disaster.

A lot of effort have been done for anti-disaster caused by a windstorm both at home and abroad at present; except that on the hoisting crane movable motor, installing additional the drg; rail clamping device, top rail machine also on walking carriage, have been set up; on road wheel, installed voussoir (stirrup strap) additional; plate, earth anchor etc. have been set up in order to be connected with ground; these devices have all played certain protective action, are particularly having under advisory for gale or hoisting crane inoperative (shutdown) state effect better.Because it is solid that these devices all need be established in advance, and for no advisory for gale, be in the hoisting crane under the normal working, as the burst strong wind, these devices can not be installed at once, just be easy to cause great disaster, what PORT OF TIANJIN bark pocket band ship unloaders (SIMPORTOR) and container loading bridge successively fell the maritime affairs event is exactly to take place in this case.

The purpose of this utility model is for overcoming the weak point of prior art, design a kind of rail mounted goliath wind-proof device, it has ccasual, the quick characteristics of response, and simple in structure, safe and reliable, be convenient to promote, applicable to any rail mounted goliath.

A kind of rail mounted goliath wind-proof device that the utility model proposes, it is characterized in that, comprise a flat bogie that can walk on the rail that links to each other with goliath with attaching parts, the eccentric fixture of forming by the eccentric wheel, wheel shaft, connecting rod, slide block, electric pushrod and the motor that link to each other successively, relative position in the rail both sides on said dolly flat board has pair of holes, said eccentric wheel is arranged in this hole, middle part on said flat board has a slotted eye, and said slide block is arranged in this hole.Eccentric fixture of the present utility model can be the pushing away, draw under the effect of electric pushrod, clamps or unclamp rail, and the goliath that links to each other with flat bogie is integral with the rail locking apace.Make people, the machine safety of the goliath when guaranteeing work under the situation of burst strong wind.Unexpected left alone without help electricity during for anti-burst strong wind, electric pushrod of the present utility model also includes supporting wind, to replace motor.Rail mounted goliath wind-proof device as claimed in

claim

1 or 2, it is characterized in that, said flat bogie is by a plate iron, constitute at the equipped single wheel of subordinate thereafter, this flat board the place ahead is matrix, use horizontal pin, be connected on the hoisting crane walking carriage by the convex attaching parts that is welded on the hoisting crane walking carriage.Be furnished with axle sleeve in said dull and stereotyped two holes, the said eccentric shaft that has is installed in the cover, its underpart is an eccentric wheel, and two eccentric wheel just are in the both sides of rail head.Said connecting rod is formed four-bar linkage by two tappets and two rocking arms.Said slide block is connected with a pole and spring, and connecting rod mechanism links to each other by pole with electric pushrod.

The utlity model has ccasual, the quick characteristics of response, the driver can be according to circumstances, even the strong wind that happens suddenly at work also can drop into and cancel windproof protection at any time by electric button, both not under the driver machine go to ground, do not need the ground staff to assist yet.And this apparatus structure is simple, safe and reliable, be convenient to promote, and applicable to any rail mounted goliath (as door machine, handling bridge etc.), both can equip existing hoisting crane, can become the new rubber tyre gantry crane design and the foundation of manufacturing again.

Brief Description Of Drawings.

Fig. 1 is an example structure scheme drawing of the present utility model.

Fig. 2 is the birds-eye view of Fig. 1.

The utility model is designed a kind of rail mounted goliath wind-proof device embodiment, is described with reference to the accompanying drawings as follows;

Present embodiment comprises a flat bogie 1, eccentric fixture 2, as shown in Figure 1, 2.

Flat bogie 1 is by a plate iron 11, constitute at the equipped single wheel 12 of subordinate thereafter, feasible arising from the crane track, dull and stereotyped the place ahead is convex, with horizontal pin 31, be connected on the hoisting crane walking carriage by the matrix attaching parts 32 that is welded on the hoisting crane walking carriage, the hoisting crane walking carriage can drag this windproof dolly at any time and move along rail.

Eccentric fixture 2 is by eccentric wheel 21, eccentric shaft 22, connecting rod 23, slide block 24 electric pushrods 28 and motor (not shown), and wind 26 constitutes.Two holes 13 have been warded off at dolly flat board middle part, and are furnished with axle sleeve 14.Setting-up eccentricity axle 22 in the cover, its underpart is the both sides that eccentric wheel 21, two eccentric wheel just are in rail head 4.Connecting rod 23 is equipped with on eccentric shaft 22 tops.Make eccentric shaft 22, connecting rod 23 form one, and can in copper sheathing, rotate by flat key 25, plain cushion 26, pressure female 27.Connecting rod 23 is formed four-bar linkage by two tappets 231 and two rocking arms 232.Electric pushrod 28 is installed in the dolly rear portion.The dull and stereotyped postmedian of dolly has been warded off a slotted eye 15, and the slide block 24 that is connected with a pole 241, spring 242 is arranged in this hole.Connecting rod mechanism links to each other by pole with electric pushrod.

The utility model is that electric pushrod drives the connection vertical pin 233 of two tappet intersections and makes horizontal reciprocating movement along specific track at the crane track axis direction according to the principle design of eccentric fixture.Rocking arm drives eccentric shaft and rotates under the effect of tappet, to change the gap between eccentric wheel and crane track head two sides.

When the gap greater than 0 the time, hoisting crane is gone together with flat bogie under the dragging of motor and is travelled, certainly also will be along creeprail under the blowing of wind.

When the gap is 0, and under the promotion of electric pushrod, by the transmission of tappet, rocking arm, eccentric wheel applies certain " giving tight power " on the portion two sides in orbit.Promote trolley running as strong wind, wind-proof device is dragged undoubtedly, and eccentric wheel can clamp track, because self-locking, along with the increasing of towing tension, coupling mechanism force will strengthen thereupon, thereby stops hoisting crane to be creeped along rail left.

From being disconnected to clamping (or from being clamped to disconnection) though be not in a flash, the longest only three to five-second period, can deal with outstanding strong wind completely.Can prevent that hoisting crane " starting-acceleration " process under wind effect from taking place, promptly with more greatly in addition very big inertial impaction obstacle may, so anti-creep disastrous effect that just can prevent the goliath wind to fall the sea causes.

Electric pushrod has just applied certain tight power of giving to clamping between eccentric wheel and track side surfaces, preventing that hoisting crane from creeping is not the power of directly adding up by electric pushrod, but the self-locking of leaning on track and eccentric shaft, brake off needs only electric pushrod to the reversing sense effect.

This device both can also can be in Ground Control in driver's cab control, and chain by electrical equipment with large vehicle walking.

Compare with existing rail clamping device, top rail machine, this device does not need the complicated hydraulic efficiency pressure system and the spring of " powerful ", thereby needn't declutch for overcoming spring when driving, and long-term constantly work done power consumption.

Meet power failure or be used to seal up for safekeeping machinery, wind can replace the driven by power electric pushrod.

Claims

1, a kind of rail mounted goliath wind-proof device, it is characterized in that, comprise a flat bogie that can walk on the rail that links to each other with goliath with attaching parts, the eccentric fixture of forming by the eccentric wheel, wheel shaft, connecting rod, slide block, electric pushrod and the motor that link to each other successively, relative position in the rail both sides on said dolly flat board has pair of holes, said eccentric wheel is arranged in this hole, middle part on said flat board has a slotted eye, and said slide block is arranged in this hole.

2, rail mounted goliath wind-proof device as claimed in claim 1 is characterized in that, said electric pushrod also includes the supporting wind with the replacement motor.

3, rail mounted goliath wind-proof device as claimed in claim 1 or 2, it is characterized in that, said flat bogie is by a plate iron, constitute at the equipped single wheel of subordinate thereafter, this flat board the place ahead is matrix, use horizontal pin, be connected on the hoisting crane walking carriage by the convex attaching parts that is welded on the hoisting crane walking carriage.

4, rail mounted goliath wind-proof device as claimed in claim 1 or 2 is characterized in that, is furnished with axle sleeve in said dull and stereotyped two holes, and the said eccentric shaft that has is installed in the cover, and its underpart is an eccentric wheel, and two eccentric wheel just are in the both sides of rail head.

5, rail mounted goliath wind-proof device as claimed in claim 1 or 2 is characterized in that, said connecting rod is formed four-bar linkage by two tappets and two rocking arms.

6, rail mounted goliath wind-proof device as claimed in claim 1 or 2 is characterized in that said slide block is connected with a pole and spring, and connecting rod mechanism links to each other by pole with electric pushrod.