CN106744292A

CN106744292A - A kind of crane grab with overload protection function

Info

Publication number: CN106744292A
Application number: CN201611162633.8A
Authority: CN
Inventors: 刘发民
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-15
Filing date: 2016-12-15
Publication date: 2017-05-31

Abstract

The invention discloses a kind of crane grab with overload protection function; including bucket body; overload protection arrangement is fixedly connected with the top of the bucket body; the overload protection arrangement includes base plate and groove; the both sides of the groove inner chamber have been fixedly connected with slide rail; pressure extension spring is fixedly connected with the top of the groove inner chamber, the bottom of the pressure extension spring is fixedly connected with movable plate, and the two ends of the movable plate are fixedly connected with the sliding block being adapted with slide rail.This has the crane grab of overload protection function; by the use to overload protection arrangement; extend the service life of equipment; carry out certain guarantee to using of seat belts for user simultaneously; reach safe operation and reduce the effect of user's use cost; by the use to equalizer bar, it is to avoid grab bucket occurs inclining the phenomenon for sliding when goods is loaded, further extension device service life is reached and has ensured the effect of loaded objects safety.

Description

A kind of crane grab with overload protection function

Technical field

The present invention relates to crane technical field, specially a kind of crane grab with overload protection function.

Background technology

Grab bucket crane, popular name clamshell crane, grab bucket crane refers to the hoisting machinery equipped with grab bucket, is widely used in port The aspects such as mouth, harbour, station goods yard, mine load various bulk goods, round log, mineral, coal, sand material, cubic metre of earth and stone etc., grab bucket Heavy-duty machine be it is a kind of automatic take thing machinery, its crawl and to draw off material action be by ship unloaders driver control, it is not necessary to aid in people Member, thus the heavy labor of workman is avoided, service working time is saved, substantially increase the efficiency of loading and unloading, traditional grab bucket Machine cannot judge whether to pick up goods when loading according to the weight of goods, frequently result in lifting vehicle and showing for rollover occur As, certain potential safety hazard is brought to the use of user, increase the use cost of user.

The content of the invention

It is an object of the invention to provide a kind of crane grab with overload protection function, to solve above-mentioned background skill The problem proposed in art.

To achieve the above object, the present invention provides following technical scheme：A kind of crane with overload protection function is grabbed Bucket, including bucket body is fixedly connected with overload protection arrangement at the top of the bucket body, the overload protection arrangement includes base plate and recessed Groove, the both sides of the groove inner chamber have been fixedly connected with slide rail, and pressure stretching bullet is fixedly connected with the top of the groove inner chamber Spring, the bottom of the pressure extension spring is fixedly connected with movable plate, and the two ends of the movable plate have been fixedly connected with and slide rail The sliding block being adapted, the both sides of the movable plate bottom have been fixedly connected with cathode contact, the both sides of the groove intracavity bottom It is fixedly connected with the cathode contact being adapted with cathode contact, the inner chamber of the groove is through being provided with motion bar, the activity The top of bar is fixedly connected with the bottom of movable plate, and the bottom of the bottom through-going recess of the motion bar simultaneously extends to the outer of groove Portion, exposed one end outside groove of the motion bar is fixedly connected with the top of base plate, the top of the overload protection arrangement Equalizer bar is connected with by contiguous block, the both sides of the equalizer bar are connected with sliding sleeve, the bucket body by pivot pin Controller is fixedly connected with the right side of top, the first projection has been fixedly connected with the top of the bucket body both sides, described first is convex Block is flexibly connected hydraulic stem by first rotating shaft, and the bottom of the bucket body both sides has been fixedly connected with the second projection, described second Projection is connected with bucket valve by the second rotating shaft, and the 3rd projection, the 3rd projection are fixedly connected with the top of the bucket valve It is flexibly connected with the bottom of hydraulic stem by the 3rd rotating shaft, the bucket valve is fixedly connected with bucket point away from one end of the second projection, The bottom of the bucket body inner chamber is fixedly connected with battery, the inner chamber of the bucket body and is fixedly connected with the top of battery Hydraulic oil container, is fixedly connected with hydraulic oil pump at the top of the hydraulic oil container, the battery is electrically connected with controller, described Controller is electrically connected with cathode contact, cathode contact and hydraulic oil pump respectively.

Preferably, the sliding block is flexibly connected with slide rail.

Preferably, the hydraulic oil pump is connected with hydraulic stem and hydraulic oil container respectively by oil pipe.

Preferably, the quantity of the pressure extension spring is five, and the top of movable plate is arranged in equidistant form.

Preferably, the surface of the controller offers louvre.

Compared with prior art, the beneficial effects of the invention are as follows：This has the crane grab of overload protection function, passes through Use to overload protection arrangement, in base plate, groove, slide rail, pressure extension spring, movable plate, sliding block, cathode contact, negative pole Under the using cooperatively of contact and motion bar, when grab bucket loads goods, when Dead Weight Cargo is overweight, in the work of gravity Extended with lower pressure extension spring, cathode contact is contacted with cathode contact, machine is stopped, it is to avoid goods is overweight to be caused There is overturning phenomenon in derrick car, extends the service life of equipment, while carry out certain guarantee to using of seat belts for user, Safe operation is reached and has reduced the effect of user's use cost, by the use to equalizer bar, in using cooperatively for sliding sleeve Under, it is to avoid grab bucket occurs inclining the phenomenon for sliding when goods is loaded, and has reached further extension device service life With the effect for ensureing loaded objects safety.

Brief description of the drawings

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the structural representation of overload protection arrangement of the present invention.

In figure：1 bucket body, 2 overload protection arrangements, 21 base plates, 22 grooves, 23 slide rails, 24 pressure extension springs, 25 movements Plate, 26 sliding blocks, 27 cathode contacts, 28 cathode contacts, 29 motion bars, 3 equalizer bars, 4 sliding sleeves, 5 controllers, 6 first projections, 7 One rotating shaft, 8 hydraulic stems, 9 second projections, 10 second rotating shafts, 11 bucket valves, 12 the 3rd projections, 13 the 3rd rotating shafts, 14 bucket points, 15 store Battery, 16 hydraulic oil containers, 17 hydraulic oil pumps.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：A kind of crane grab with overload protection function, Including bucket body 1, the top of bucket body 1 is fixedly connected with overload protection arrangement 2, and overload protection arrangement 2 includes base plate 21 and groove 22, The both sides of the inner chamber of groove 22 have been fixedly connected with slide rail 23, and groove 22 is fixedly connected with pressure extension spring 24 at the top of inner chamber, The quantity of pressure extension spring 24 is five, and the top of movable plate 25, pressure extension spring 24 are arranged in equidistant form Bottom be fixedly connected with movable plate 25, the two ends of movable plate 25 are fixedly connected with the sliding block 26 being adapted with slide rail 23, sliding Block 26 is flexibly connected with slide rail 23, and the both sides of the bottom of movable plate 25 have been fixedly connected with cathode contact 27, the intracavity bottom of groove 22 Both sides be fixedly connected with the cathode contact 28 being adapted with cathode contact 27, the inner chamber of groove 22 is through being provided with motion bar 29, the top of motion bar 29 is fixedly connected with the bottom of movable plate 25, and the bottom of the bottom through-going recess 22 of motion bar 29 is simultaneously prolonged The outside of groove 22 is extended, the exposed one end outside groove 22 of motion bar 29 is fixedly connected with the top of base plate 21, by right The use of overload protection arrangement 2, in base plate 21, groove 22, slide rail 23, pressure extension spring 24, movable plate 25, sliding block 26, just Under the using cooperatively of pole contact 27, cathode contact 28 and motion bar 29, when grab bucket loads goods, when Dead Weight Cargo is overweight When, pressure extension spring 24 extends under gravity, cathode contact 27 is contacted with cathode contact 28, and machine stops Work, it is to avoid goods is overweight to cause derrick car overturning phenomenon occur, the service life of equipment is extended, while to user's Use of seat belts and carry out certain guarantee, reached safe operation and reduced the effect of user's use cost, overload protection arrangement 2 Top equalizer bar 3 is connected with by contiguous block, the both sides of equalizer bar 3 are connected with sliding sleeve 4, pass through by pivot pin Use to equalizer bar 3, under the using cooperatively of sliding sleeve 4, it is to avoid grab bucket occurs inclining what is slid when goods is loaded Phenomenon, has reached further extension device service life and has ensured the effect of loaded objects safety, and the right side at the top of bucket body 1 is fixed Controller 5 is connected with, the surface of controller 5 offers louvre, the first projection 6 has been fixedly connected with the top of the both sides of bucket body 1, First projection 6 is flexibly connected hydraulic stem 8 by first rotating shaft 7, and the bottom of the both sides of bucket body 1 has been fixedly connected with the second projection 9, the Two projections 9 are connected with bucket valve 11 by the second rotating shaft 10, and the top of the valve 11 that struggles against is fixedly connected with the 3rd projection 12, and the 3rd is convex Block 12 is flexibly connected by the 3rd rotating shaft 13 with the bottom of hydraulic stem 8, and bucket valve 11 is fixedly connected with away from one end of the second projection 9 Bucket point 14, the bottom of the inner chamber of bucket body 1 is fixedly connected with battery 15, the inner chamber of bucket body 1 and is fixed positioned at the top of battery 15 Hydraulic oil container 16 is connected with, the top of hydraulic oil container 16 is fixedly connected with hydraulic oil pump 17, and hydraulic oil pump 17 is distinguished by oil pipe Connected with hydraulic stem 8 and hydraulic oil container 16, battery 15 is electrically connected with controller 5, controller 5 respectively with cathode contact 27, Cathode contact 28 and hydraulic oil pump 17 are electrically connected with.

Operation principle：When using, user's control controller 5 makes hydraulic oil pump 17 work, and now hydraulic stem 8 drives bucket valve 11 pairs of goods are loaded, and when goods exceedes the quality for limiting, overload protection arrangement 2 works, the pressure in overload protection arrangement 2 Power extension spring 24 extends under gravity, finally makes the negative pole in the cathode contact 27 of the bottom of movable plate 25 and groove 22 Contact 28 is contacted, and now the control device of controller 5 is stopped, and equipment is protected, and so far whole work is finished.

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention And modification, the scope of the present invention be defined by the appended.

Claims

1. a kind of crane grab with overload protection function, including bucket body（1）, it is characterised in that：The bucket body（1）Top Portion is fixedly connected with overload protection arrangement（2）, the overload protection arrangement（2）Including base plate（21）And groove（22）, it is described recessed Groove（22）The both sides of inner chamber have been fixedly connected with slide rail（23）, the groove（22）Pressure stretching is fixedly connected with the top of inner chamber Spring（24）, the pressure extension spring（24）Bottom be fixedly connected with movable plate（25）, the movable plate（25）Two ends It has been fixedly connected with and slide rail（23）The sliding block being adapted（26）, the movable plate（25）The both sides of bottom have been fixedly connected with just Pole contact（27）, the groove（22）The both sides of intracavity bottom have been fixedly connected with and cathode contact（27）The negative pole being adapted is touched Point（28）, the groove（22）Inner chamber through being provided with motion bar（29）, the motion bar（29）Top and movable plate（25） Bottom be fixedly connected, the motion bar（29）Bottom through-going recess（22）Bottom and extend to groove（22）Outside, The motion bar（29）It is exposed in groove（22）Outside one end and base plate（21）Top be fixedly connected, overload protection dress Put（2）Top equalizer bar is connected with by contiguous block（3）, the equalizer bar（3）Both sides by pivot pin activity even It is connected to sliding sleeve（4）, the bucket body（1）Controller is fixedly connected with the right side of top（5）, the bucket body（1）The top of both sides is equal It is fixedly connected with the first projection（6）, first projection（6）By first rotating shaft（7）It is flexibly connected hydraulic stem（8）, the bucket Body（1）The bottom of both sides has been fixedly connected with the second projection（9）, second projection（9）By the second rotating shaft（10）Activity is even It is connected to bucket valve（11）, the bucket valve（11）Top be fixedly connected with the 3rd projection（12）, the 3rd projection（12）By Three rotating shafts（13）With hydraulic stem（8）Bottom be flexibly connected, the bucket valve（11）Away from the second projection（9）One end be fixedly connected There is bucket point（14）, the bucket body（1）The bottom of inner chamber is fixedly connected with battery（15）, the bucket body（1）Inner chamber and be located at Battery（15）Top be fixedly connected with hydraulic oil container（16）, the hydraulic oil container（16）Top be fixedly connected with hydraulic oil Pump（17）, the battery（15）With controller（5）It is electrically connected with, the controller（5）Respectively with cathode contact（27）, negative pole Contact（28）And hydraulic oil pump（17）It is electrically connected with.

2. a kind of crane grab with overload protection function according to claim 1, it is characterised in that：The sliding block （26）With slide rail（23）It is flexibly connected.

3. a kind of crane grab with overload protection function according to claim 1, it is characterised in that：The hydraulic pressure Oil pump（17）By oil pipe respectively with hydraulic stem（8）And hydraulic oil container（16）Connection.

4. a kind of crane grab with overload protection function according to claim 1, it is characterised in that：The pressure Extension spring（24）Quantity be five, and be arranged in movable plate in equidistant form（25）Top.

5. a kind of crane grab with overload protection function according to claim 1, it is characterised in that：The control Device（5）Surface offer louvre.