CN210973623U - Anti-falling safety protection net used on bridge-gate crane - Google Patents

Abstract

The anti-falling safety protection net for the bridge-gate crane comprises a protection net, a first hanging ring, a guide pulley and a steel wire rope, wherein the protection net is positioned between a cross beam and an end beam of the crane, a transverse moving trolley capable of moving along the cross beam is arranged on the cross beam, and the protection net is arranged on two sides of the transverse moving trolley. The utility model has the advantages of: the utility model discloses guarantee the life of protecting wire net, still through second link fixed connection between first link and the hoist crossbeam, the setting of second link and connecting rod can reduce the transverse deformation of protecting wire net to can form the support between protecting wire net and crossbeam, avoid dropping the article on protecting wire net and form secondary high altitude weight thing, further guarantee ground equipment and personnel's safety.

Description

Anti-falling safety protection net used on bridge-gate crane

Technical Field

The utility model belongs to the technical field of crane safety protection technique and specifically relates to an anti-falling safety protection net that uses on gantry crane.

Background

At present, when various types of cranes are used in various factories, mines and wharfs, regular and frequent overhaul and maintenance are required to be carried out on the cranes, overhaul and maintenance personnel need to work aloft during working, and because of the working and running requirements of a hoisting trolley, the outer sides of most crane beams are provided with protective railings, but the inner side of the platform can not be provided with corresponding protective railings, and the oil leakage phenomenon is easy to occur on the platform of some cranes because of the trolley and the lifting gear box, and the platform can not be processed in time, so that the platform is smooth, the danger of falling from high altitude is easily caused by carelessness to the maintainers, the fittings which are not in place for long-time operation and maintenance are easy to loosen and fall off sometimes for the equipment, the ground equipment or personnel can be damaged when tools carried by the maintainers fall off, how to avoid falling objects at high altitude and ensure the safety of maintainers is an urgent problem to be solved in normal operation or overhaul operation of the existing crane.

Disclosure of Invention

In order to solve the problem, an object of the utility model is to provide a prevent weighing down safety protection net of using on gantry crane installs at the inside position of hoist, and can follow the dolly and remove, and the protection net can cover all positions of hoist inside constantly, prevents that the object from falling to the high altitude to ground equipment and personnel's injury, has also guaranteed maintainer's personal safety.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to an anti-falling safety protection net used on a bridge door type crane, which comprises a protection net, a first hanging ring, a guide pulley and a steel wire rope, wherein the protection net is positioned between a cross beam and an end beam of the crane, a traversing trolley which can move along the cross beam is arranged on the cross beam, the protection net is arranged on both sides of the traversing trolley, a plurality of first hanging rings are fixedly arranged on both sides of each protection net, one end of the protection net is fixedly connected with the end beam, the other end of the protection net is fixedly connected with the traversing trolley through a traction bracket, the traction bracket is arranged on both sides of the traversing trolley, the guide pulley is fixedly arranged at the right angle position where the end beam is connected with the inner side of the cross beam, a steel wire rope is arranged between two guide pulleys on the same cross beam, and the two steel wire ropes respectively pass through the first hanging ring on the protection net on one side, two ends of the two steel wire ropes are wound around the guide pulleys and fixedly connected through tension springs, the tension springs are located between the two guide pulleys on the same end beam, and the transverse moving trolley moves on the cross beam and can drive the protection nets on the two sides to stretch out and draw back on the steel wire ropes through the first hanging rings. Furthermore, slide bars are arranged on the inner walls of the cross beams on the two sides respectively, the slide bars are arranged along the length direction of the cross beams, a second hanging ring is sleeved on each slide bar, the number of the second hanging rings is the same as that of the first hanging rings on the same side of the protection net, and each corresponding second hanging ring is fixedly connected with the corresponding first hanging ring through a connecting rod. Further, the periphery cover of extension spring is equipped with the mounting box, and mounting box one side articulates there is the apron that can open and shut, and the through-hole with wire rope matched with is seted up to the both ends position of mounting box, and wherein the diameter of extension spring is greater than the diameter of through-hole. Further, a first U-shaped contact piece is fixedly mounted at the upper part in the mounting box, a second U-shaped contact piece is mounted at the lower part, a first circular contact piece is fixedly connected to the upper part of a steel wire rope in the mounting box, a second circular contact piece is fixedly connected to the lower part of the steel wire rope in the mounting box, the first U-shaped contact piece is in contact with the first circular contact piece and the second U-shaped contact piece under the action of tension of the tension spring, and the first U-shaped contact piece and the first circular contact piece as well as the second U-shaped contact piece and the second circular contact piece are connected into a driving control circuit of the bridge crane in series through wires.

The utility model has the advantages of: a prevent weighing down safety protection net of using on bridge portal crane, install between sideslip dolly and hoist end beam, the protective screen of both sides can be followed the sideslip dolly and stretched or contract to guarantee in real time that the inner space of hoist is covered by the protective screen, prevent the injury of high altitude weight thing to ground equipment and personnel. The movement of the protection net is realized by sliding the first hanging ring on the steel wire ropes, the two steel wire ropes are connected through the tension spring, the steel wire ropes have certain extension and stretching performance, the tensile deformation performance and the bearing strength of the protection net can be improved to a certain degree, and the service life of the protection net is ensured. The first hanging ring is fixedly connected with the crane beam through the second hanging ring, the second hanging ring and the connecting rod are arranged to reduce the transverse deformation of the protection net and form support between the protection net and the beam, so that objects falling on the protection net are prevented from forming secondary high-altitude falling objects, and the safety of ground equipment and personnel is further guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged partial view of I of FIG. 1;

FIG. 3 is an enlarged partial view of II of FIG. 1;

FIG. 4 is a schematic view of an open state of another structural embodiment of the mounting box;

fig. 5 is an enlarged view of a sectional view taken along line a-a in fig. 4.

In the figure, a protective net 1, a first hanging ring 2, a first hanging ring 3, a pulley 4, a steel wire rope 5, a beam 6, an end beam 7, a traversing trolley 8, a traction support 9, a tension spring 10, a sliding rod 11, a second hanging ring 12, a cover plate 13, a through hole 14, a first U-shaped contact piece 16, a second U-shaped contact piece 17, a first circular contact piece 18, a second circular contact piece 19 and a connecting rod are arranged in a box 13.

Detailed Description

The utility model relates to an anti-falling safety protection net used on a gantry crane, as shown in figure 1, which comprises a protection net 1, a first hanging ring 2, a guide pulley 3 and a steel wire rope 4, wherein the protection net 1 is positioned between a cross beam 5 and an end beam of the crane, a transverse trolley 7 capable of moving along the transverse beam 5 is arranged on the transverse beam, the two sides of the transverse trolley 7 are both provided with a protective net 1, a plurality of first hanging rings 2 are fixedly arranged at the two sides of each protecting net 1, one end of each protecting net 1 is fixedly connected with an end beam 6, the other end of each protecting net 1 is fixedly connected with a transverse trolley 7 through a traction bracket 8, the traction support 8 is arranged at the two sides of the traversing trolley 7, the lengths of the two protection nets 1 are the same as the length of the cross beam 5, and the protection nets 1 can be ensured to cover the inner space of the crane in real time when moving along with the traversing trolley 7.

Equal fixed mounting guide pulley 3 in the right angle position department of end beam 6 and 5 inboard connections of crossbeam all installs a wire rope 4 between two guide pulley 3 on same crossbeam 5, two wire rope 4 pass first link 2 on one side protecting net 1 separately respectively, and guide pulley 3 is all walked around and through extension spring 9 fixed connection at the both ends of two wire rope 4, extension spring 9 is located between two guide pulley 3 on same end beam 6, and sideslip dolly 7 moves on crossbeam 5 can drive protecting net 1 of both sides and stretch out and draw back on wire rope 4 through first link 2. The wire rope 4 passes through the first link 2 with one side, is equivalent to the side support of protecting net 1, because extension spring 9 has certain extensibility between wire rope 4 and the wire rope 4, when the junk falls on protecting net 1, enables protecting net 1 and follows the downward deformation certain degree of junk, comes the impact property of buffering junk, and then improves the life of whole protecting net 1.

When falling objects fall onto the protection net 1, the protection net 1 can deform downwards to a certain degree along with the falling objects, large holes can be formed between the protection net 1 and the cross beams in the height direction, the falling objects can fall through the holes again, ground equipment or personnel are injured, in order to avoid the situation, as shown in fig. 2, sliding rods 10 are mounted on the inner walls of the cross beams 5 on the two sides, the sliding rods 10 are arranged along the length direction of the cross beams 5, second hanging rings 11 are sleeved on each sliding rod 10, the number of the second hanging rings 11 is the same as that of the first hanging rings 2 on the same side of the protection net 1, and each corresponding second hanging ring 11 is fixedly connected with the corresponding first hanging ring 2 through a connecting rod 19. The setting of second link 11 and connecting rod 19 can form the railing that has the guard action between protection network 1 and crossbeam 5 at the in-process that protection network 1 descends following the junk, avoids the production of great hole, and then prevents that the secondary of junk from falling and causing the injury to ground equipment or personnel.

Preferably, in order to avoid the protective net 1 and the steel wire rope 4 from bearing large gravity and stretching and deforming the tension spring 9 infinitely, as shown in fig. 3, a mounting box 12 is sleeved on the periphery of the tension spring 9, an openable cover plate 13 is hinged to one side of the mounting box 12, through holes 14 matched with the steel wire rope 4 are formed in the two ends of the mounting box 12, the diameter of the tension spring 9 is larger than that of the through holes 4, after the connected tension spring 9 and the connected steel wire rope 4 are placed in the mounting box 12, the stretching amount of the tension spring 9 is limited in the inner space of the mounting box 12, the tension spring 9 can be prevented from being stretched excessively, and the service life of the tension spring is prolonged.

Further, in order to ensure that the traversing carriage 7 does not move any more when falling objects exist on the protection net 1, so as to remove the falling objects and avoid the existing risks, as shown in fig. 3 and 4, a first U-shaped contact 15 is fixedly installed at the upper part in the installation box 12, a second U-shaped contact 16 is installed at the lower part, a first circular contact 17 is fixedly connected to the upper part of the steel wire rope 4 in the installation box 12, a second circular contact 18 is fixedly connected to the lower part of the steel wire rope 4 in the installation box 12, under the action of the pulling force of the tension spring 9, the first U-shaped contact 15 is in contact with the first circular contact 17, the second U-shaped contact 16 is in contact with the second circular contact 18, and the first U-shaped contact 15 and the first circular contact 17 as well as the second U-shaped contact 16 and the second circular contact 18 are connected in series via wires into a driving control circuit of the gantry crane. When the cover plate 13 is buckled with the mounting box 12, the free movement of the inner steel wire rope 4 and the first round contact piece 17 and the second round contact piece 18 on the inner steel wire rope is not influenced, only when no falling object exists on the protection net 1 and the steel wire rope 4 does not bear the pulling force, under the pulling force of the tension spring 9, the first U-shaped contact piece 15 is contacted with the first round contact piece 17, the second U-shaped contact piece 16 is contacted with the second round contact piece 18, the driving control circuit of the bridge-door type crane can form a loop, the transverse moving trolley 7 normally works, if the falling object exists on the protection net 1, the steel wire rope 4 is deformed, the first round contact piece 17 is pulled to be separated from the first U-shaped contact piece 15 or the second round contact piece 18 is pulled to be separated from the second U-shaped contact piece 16, the driving control circuit of the bridge-door type crane can be disconnected, at the moment, the transverse moving trolley 7 stops moving, and the, the machine is stopped, so that operators can clear away falling objects conveniently, potential risks are eliminated, and normal operation of subsequent hoisting operation is guaranteed.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims (4)

1. The utility model provides a prevent weighing down safety protection net that uses on bridge portal crane, includes protecting net (1), first link (2), leading pulley (3) and wire rope (4), its characterized in that: the protection net (1) is positioned between a cross beam (5) and an end beam (6) of the crane, a transverse trolley (7) capable of moving along the cross beam (5) is installed on the cross beam (5), the protection nets (1) are installed on two sides of the transverse trolley (7), a plurality of first hanging rings (2) are fixedly installed on two sides of each protection net (1), one end of each protection net (1) is fixedly connected with the end beam (6), the other end of each protection net (1) is fixedly connected with the transverse trolley (7) through a traction support (8), wherein the traction supports (8) are arranged on two sides of the transverse trolley (7), guide pulleys (3) are fixedly installed on right-angle positions where the end beams (6) are connected with the inner side of the cross beam (5), a steel wire rope (4) is installed between two guide pulleys (3) on the same cross beam (5), and the two steel wire ropes (4) respectively penetrate through the first hanging rings (2) on the protection net (1) on one side of each steel wire rope (4), guide pulleys (3) are all walked around and through extension spring (9) fixed connection at the both ends of two wire rope (4), extension spring (9) are located between two guide pulleys (3) on same end roof beam (6), and sideslip dolly (7) can move up in crossbeam (5) and drive protecting net (1) of both sides and stretch out and draw back on wire rope (4) through first link (2).

2. The anti-falling safety protection net for the bridge-gate crane according to claim 1, characterized in that: all install slide bar (10) on the inner wall of crossbeam (5), slide bar (10) are arranged along the length direction of crossbeam (5), and the cover is equipped with second link (11) on every slide bar (10), the quantity of second link (11) is the same with the quantity of protection net (1) homonymy first link (2), all through connecting rod (19) looks fixed connection between every corresponding second link (11) and first link (2).

3. The anti-falling safety protection net for the bridge-gate crane according to claim 1, characterized in that: the periphery cover of extension spring (9) is equipped with mounting box (12), and mounting box (12) one side articulates there is apron (13) that can open and shut, and the both ends position of mounting box (12) is seted up with wire rope (4) matched with through-hole (14), and wherein the diameter of extension spring (9) is greater than the diameter of through-hole (14).

4. The anti-falling safety protection net for the bridge-gate crane according to claim 3, characterized in that: the upper portion fixed mounting first U type contact (15) in mounting box (12), second U type contact (16) are installed to the lower part, be located first circular contact (17) of wire rope (4) upper portion fixed connection in mounting box (12), be located wire rope (4) lower part fixed connection second circular contact (18) in mounting box (12), under the pulling force effect of extension spring (9), first U type contact (15) contact with first circular contact (17), second U type contact (16) contact with second circular contact (18), above-mentioned first U type contact (15) and first circular contact (17) and second U type contact (16) and second circular contact (18) all establish ties into the drive control circuit of bridge gantry crane through the wire.

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