CN115367650A

CN115367650A - Overload limiter device for bridge crane

Info

Publication number: CN115367650A
Application number: CN202210805804.3A
Authority: CN
Inventors: 刘艳; 杨光; 乔前; 崔雪莲; 吴真涛
Original assignee: Hubei Zhongnan Lifting Safety Inspection And Testing Co ltd
Current assignee: Hubei Zhongnan Lifting Safety Inspection And Testing Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-22

Abstract

The invention relates to the technical field of cranes and discloses an overload limiter device for a bridge crane, which comprises a mounting plate, wherein the top of the mounting plate is fixedly connected with a motor, the top of the mounting plate is fixedly connected with two supporting seats, the two supporting seats are internally and rotatably connected with a wire roller, the outer surface of the wire roller is wound with a pull rope, and the bottom of the pull rope is fixedly connected with a shell. This an overload limiter device for bridge crane, the object is hung on the couple, drive the line roller through starter motor and drive the stay cord and receive the line, the stay cord upwards stimulates and drives the shell rebound, when the weight of object surpasses the restriction, the couple can drive the fly leaf downstream, the tensile first spring of first slider simultaneously, the tensile second spring of second slider, the fly leaf extrudees the third spring, the fly leaf downstream drives the briquetting and pushes down the switch ware, the switch ware starts to drive the alarm and starts to report to the police, thereby can drive the overweight effect of quick suggestion operating personnel.

Description

Overload limiter device for bridge crane

Technical Field

The invention relates to the technical field of cranes, in particular to an overload limiter device for a bridge crane.

Background

The bridge crane is a hoisting device which is transversely erected above workshops, warehouses and stockyards to hoist materials, is a hoisting machine with the widest application range and the largest number, two ends of the bridge crane are located on high cement columns or metal supports, the shape of the bridge crane is similar to that of a bridge, the bridge frame of the bridge crane longitudinally runs along rails laid on the elevated frames on two sides, the space below the bridge frame can be fully utilized to hoist the materials, and the bridge crane is not hindered by ground equipment.

Because current bridge crane all can set up overload limiter on the hoist when carrying the goods, but overload limiter can't effectively prompt operating personnel fast in work, and just can detect out whether overload after the hoist hoists the article among the prior art, and dangerous risk is great, so provide an overload limiter device for bridge crane and solve above-mentioned problem.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an overload limiter device for a bridge crane, which has the advantages of strong practicability, strong safety and the like, and solves the problem that the existing overload limiter cannot effectively and quickly prompt operators.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an overload limiter device for a bridge crane comprises a mounting plate, wherein the top of the mounting plate is fixedly connected with a motor, the top of the mounting plate is fixedly connected with two supporting seats, wire rollers are rotatably connected inside the two supporting seats, pull ropes are wound on the outer surfaces of the wire rollers, the bottoms of the pull ropes are fixedly connected with a shell, hooks are arranged inside the shell, and an alarm assembly is arranged inside the shell;

the alarm assembly is including fixed connection in the inside backup pad of shell, backup pad top fixedly connected with switch ware, the inside fixedly connected with battery of shell, shell right side fixedly connected with alarm, the inside swing joint of shell has the fly leaf, fly leaf bottom fixedly connected with briquetting, the inside fixedly connected with fixed plate of shell, the inside fixedly connected with quantity of fixed plate is the first slide bar of two, two the first slide bar surface all overlaps and is equipped with first spring, two the equal sliding connection of first slide bar surface has first slider, two first slider openly all rotates and is connected with first movable rod, the inside fixedly connected with quantity of fly leaf is the second slide bar of two, two the second slide bar surface all overlaps and is equipped with the second spring, two the equal sliding connection of second slide bar surface has the second slide bar, two the second slide bar openly all rotates and is connected with the second movable rod, backup pad top fixedly connected with third spring.

Further, the inside fixedly connected with spacing groove of shell, fly leaf sliding connection is in spacing inslot portion.

Further, the third spring is fixedly connected with the movable plate, the hook is fixedly connected with the movable plate, and the hook is movably connected inside the supporting plate and penetrates through the supporting plate.

Furthermore, two first slider all is fixed connection with first spring, two the second slider all is fixed connection with the second spring, first movable rod is articulated with the second movable rod.

Further, the motor output shaft is rotatably connected inside the supporting seat, and the motor output shaft is fixedly connected with the wire roller.

Further, stay cord swing joint is inside the mounting panel, and runs through the mounting panel, be the electricity between switch, alarm and the battery and connect.

(III) advantageous effects

Compared with the prior art, the invention provides an overload limiter device for a bridge crane, which has the following beneficial effects:

this an overload limiter device for bridge crane hangs on the couple through the object, drive the line roller through starter motor and drive the stay cord and receive the line, the stay cord upwards stimulates and drives shell rebound, when the weight of object surpassed the restriction, the couple can drive the fly leaf downstream, the tensile first spring of first slider simultaneously, the tensile second spring of second slider, the fly leaf extrudees the third spring, the fly leaf downstream drives the briquetting and pushes down the switch ware, the switch ware starts to drive the alarm and starts to report to the police, thereby can drive the overweight effect of quick suggestion operating personnel.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1.

In the figure: the device comprises a mounting plate 1, a motor 2, a support base 3, a wire roller 4, a pull rope 5, a shell 6, a hook 7, a support plate 8, a movable plate 9, a limit groove 10, a third spring 11, a press block 12, a switch 13, an alarm 14, a storage battery 15, a second slide bar 16, a second spring 17, a second slide bar 18, a second movable bar 19, a fixed plate 20, a first slide bar 21, a first slide block 22 and a first spring 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an overload limiter device for a bridge crane comprises a mounting plate 1, a motor 2 is fixedly connected to the top of the mounting plate 1, two supporting seats 3 are fixedly connected to the top of the mounting plate 1, a wire roller 4 is rotatably connected to the inside of the two supporting seats 3, an output shaft of the motor 2 is rotatably connected to the inside of the supporting seats 3, an output shaft of the motor 2 is fixedly connected to the wire roller 4, a pull rope 5 is wound on the outer surface of the wire roller 4, a shell 6 is fixedly connected to the bottom of the pull rope 5, a hook 7 is arranged inside the shell 6, and an alarm assembly is arranged inside the shell 6.

Wherein, the alarm component comprises a supporting plate 8 fixedly connected inside the casing 6, the top of the supporting plate 8 is fixedly connected with a switch 13, the inside of the casing 6 is fixedly connected with a storage battery 15, the right side of the casing 6 is fixedly connected with an alarm 14, the inside of the casing 6 is movably connected with a movable plate 9, a hook 7 is fixedly connected with the movable plate 9, the hook 7 is movably connected inside the supporting plate 8 and penetrates through the supporting plate 8, the bottom of the movable plate 9 is fixedly connected with a pressing block 12, the inside of the casing 6 is fixedly connected with a fixed plate 20, the inside of the fixed plate 20 is fixedly connected with two first sliding rods 21, the outer surfaces of the two first sliding rods 21 are respectively sleeved with a first spring 23, the outer surfaces of the two first sliding rods 21 are respectively and slidably connected with a first sliding block 22, the two first sliding blocks 22 are respectively and fixedly connected with the first spring 23, and the two second sliding blocks 18 are respectively and fixedly connected with a second spring 17, the front surfaces of the two first sliding blocks 22 are both rotatably connected with a first movable rod 24, the first movable rod 24 is hinged with a second movable rod 19, the inside of the movable plate 9 is fixedly connected with two second sliding rods 16, the outer surfaces of the two second sliding rods 16 are both sleeved with second springs 17, the outer surfaces of the two second sliding rods 16 are both slidably connected with second sliding rods 18, the front surfaces of the two second sliding rods 18 are both rotatably connected with the second movable rods 19, the top of the supporting plate 8 is fixedly connected with a third spring 11, the third spring 11 is fixedly connected with the movable plate 9, an object is hung on the hook 7, the wire roller 4 is driven by the starting motor 2 to drive the pull rope 5 to take up, the pull rope 5 pulls the shell 6 to move upwards, when the weight of the object exceeds a limit, the hook 7 drives the movable plate 9 to move downwards, meanwhile, the first sliding blocks 22 stretch the first springs 23, the second sliding blocks 18 stretch the second springs 17, the movable plate 9 presses the third spring 13, the movable plate 9 moves downwards to drive the pressing block 12 to press the switch 13 downwards, and the switch 13 is started to drive the alarm to start to give an alarm, so that the overweight effect of operators can be quickly prompted.

In this embodiment, the inner portion of the housing 6 is fixedly connected with the limiting groove 10, and the movable plate 9 is slidably connected to the inner portion of the limiting groove 10, so that the movable plate 9 is more stable when moving up and down.

In this embodiment, the pull rope 5 is movably connected inside the mounting plate 1 and penetrates through the mounting plate 1, and the switch 13, the alarm 14 and the storage battery 15 are all electrically connected.

The electrical components presented in the present invention are electrically connected to a controller and a power supply, the control mode of the present invention is controlled by the controller, the control circuit of the controller can be realized by simple programming by those skilled in the art, the supply of the power supply is also common knowledge in the art, and the present invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present invention.

The working principle of the above embodiment is as follows:

this an overload limiter device for bridge crane, the object is hung on couple 7, drive line roller 4 through starter motor 2 and drive stay cord 5 and receive the line, stay cord 5 upwards stimulates and drives shell 6 rebound, when the weight of object exceedes the restriction, couple 7 can drive fly leaf 9 lapse, the tensile first spring 23 of first slider 22 simultaneously, the tensile second spring 17 of second slider 18, fly leaf 9 extrudees third spring 13, fly leaf 9 lapse drives briquetting 12 lapse and moves switch 13, switch 13 starts to drive the alarm and starts to report to the police, thereby can drive the overweight effect of quick suggestion operating personnel.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An overload limiter device for a bridge crane, comprising a mounting plate (1), characterized in that: the top of the mounting plate (1) is fixedly connected with a motor (2), the top of the mounting plate (1) is fixedly connected with two supporting seats (3), the two supporting seats (3) are rotatably connected with a wire roller (4), a pull rope (5) is wound on the outer surface of the wire roller (4), the bottom of the pull rope (5) is fixedly connected with a shell (6), a hook (7) is arranged inside the shell (6), and an alarm assembly is arranged inside the shell (6);

the alarm component comprises a supporting plate (8) fixedly connected with the inner part of the shell (6), the top of the supporting plate (8) is fixedly connected with a switch (13), the interior of the shell (6) is fixedly connected with a storage battery (15), the right side of the shell (6) is fixedly connected with an alarm (14), the interior of the shell (6) is movably connected with a movable plate (9), the bottom of the movable plate (9) is fixedly connected with a pressing block (12), a fixing plate (20) is fixedly connected in the shell (6), the inner part of the fixed plate (20) is fixedly connected with two first slide bars (21), the outer surfaces of the two first slide bars (21) are respectively sleeved with a first spring (23), the outer surfaces of the two first slide bars (21) are respectively connected with a first sliding block (22) in a sliding manner, the front surfaces of the two first sliding blocks (22) are respectively connected with a first movable rod (24) in a rotating manner, the movable plate (9) is fixedly connected with two second sliding rods (16) in quantity, the outer surfaces of the two second sliding rods (16) are respectively sleeved with a second spring (17), the outer surfaces of the two second sliding rods (16) are respectively connected with a second sliding rod (18) in a sliding manner, the front surfaces of the two second sliding rods (18) are respectively connected with a second movable rod (19) in a rotating manner, the top of the supporting plate (8) is fixedly connected with a third spring (11).

2. An overload limiter apparatus for a bridge crane as claimed in claim 1, wherein: the inside fixedly connected with spacing groove (10) of shell (6), fly leaf (9) sliding connection is inside in spacing groove (10).

3. An overload limiter arrangement for a bridge crane according to claim 1, wherein: third spring (11) and fly leaf (9) are fixed connection, couple (7) swing joint is inside backup pad (8), and runs through backup pad (8).

4. An overload limiter arrangement for a bridge crane according to claim 1, wherein: two first slider (22) all are fixed connection with first spring (23), two second slider (18) all are fixed connection with second spring (17), first movable rod (24) are articulated with second movable rod (19).

5. An overload limiter apparatus for a bridge crane as claimed in claim 1, wherein: the output shaft of the motor (2) is rotatably connected inside the supporting seat (3), and the output shaft of the motor (2) is fixedly connected with the wire roller (4).

6. An overload limiter arrangement for a bridge crane according to claim 1, wherein: stay cord (5) swing joint is inside mounting panel (1), and runs through mounting panel (1), be the electricity between switch ware (13), alarm (14) and battery (15) and be connected.