Safety protection device for hoisting machinery

Abstract

The utility model discloses a hoisting machinery safety protection device which comprises a supporting frame, the top of the supporting frame is fixedly connected with a sliding rail, the bottom of a transmission frame is fixedly connected with a hoisting box, a hoisting mechanism is arranged in the hoisting box, a steel wire rope is fixedly installed in the hoisting mechanism, and the bottom face of the hoisting box is fixedly connected with a telescopic limiting pipe. A lifting plate is fixedly connected to the surface of the lifting hook, a limiting plate is fixedly connected to the bottom of the telescopic limiting pipe, positioning columns are fixedly connected to the two sides of the surface of the lifting plate, and a limiting groove is formed in the bottom face of the limiting plate. The lifting device has the advantages that the steel wire rope drives the lifting hook to move up and down through the lifting mechanism, the lifting hook lifts a hung object, when the lifting hook drives the object to ascend, the positioning column on the surface of the lifting plate is installed in the limiting groove in the bottom face of the limiting plate in a matched mode, and the tail end of the steel wire rope can slide and retract into the telescopic limiting pipe. The telescopic limiting pipe and the steel wire rope shrink together, so that stable lifting of a lifted object is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting machinery technical field, specifically, relate to a hoisting machinery safety device. BACKGROUND

[0002] Hoisting machinery as a kind of key vertical lifting or simultaneously has vertical lifting and horizontal movement function electromechanical device, plays an indispensable role in industrial production and logistics handling.It is mainly through hoisting hook or other types of material taking device realizes the lifting and movement of heavy object, is the important assistant of modern engineering operation.The traditional hoisting machinery usually uses wire rope as the main element of connection and lifting.This design is excellent in many application scenarios, but when dealing with bulky, heavy objects, it exposes some shortcomings.

[0003] In actual operation process, when the object is lifted by wire rope, and after lifting, the object is moved horizontally, the object often swings and deviates.Because bulky, heavy objects have large inertia, in the process of lifting and moving, even if wire rope is subjected to slight external force, it is easy to cause the object to produce large swing amplitude.Once swing or deviation occurs, not only the heavy object itself can be damaged, more importantly, it can cause safety accidents, threaten the life safety of on-site staff.For example, violent swing can make heavy object hit surrounding structure or equipment, cause unpredictable loss, and deviation can lead to inaccurate heavy object placement, further increase operation difficulty and risk.

[0004] For the problems in the related art, no effective solution has been proposed so far. INVENTION CONTENTS

[0005] For the problems in the related art, the utility model provides a hoisting machinery safety device to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A hoisting machinery safety device, comprising a support frame, a sliding rail is fixedly connected to the top of the support frame, a transmission frame is slidingly installed on the surface of the sliding rail, a hoisting box is fixedly connected to the bottom of the transmission frame, a hoisting mechanism is arranged in the hoisting box, a steel wire rope is fixedly installed in the hoisting mechanism, an extension limiting tube is fixedly connected to the bottom surface of the hoisting box, a hook is fixedly connected to the end of the steel wire rope and slidingly passes through the extension limiting tube, a lifting plate is fixedly connected to the surface of the hook, a limiting plate is fixedly connected to the bottom of the extension limiting tube, positioning columns are fixedly connected to the surface of the lifting plate on both sides, a limiting groove is formed in the bottom surface of the limiting plate, and the positioning columns are matched with the limiting groove.

[0008] Further, in order to realize power supply for the up and down movement of the steel wire rope and the hook, the hoisting mechanism comprises a transmission motor one fixedly installed on one side of the inside of the hoisting box, the output end of the transmission motor one is fixedly connected with a speed reducer, the output end of the speed reducer is fixedly connected with a winding drum, and one end of the steel wire rope is fixedly installed on the winding drum.

[0009] Further, in order to realize the automatic movement of the transmission frame on the sliding rail, a transmission motor two is fixedly installed on one side of the inside of the transmission frame, and a transmission roller is fixedly connected to the transmission shaft of the transmission motor two.

[0010] Further, in order to realize the automatic extension of the telescopic limiting tube when it is not extruded, a telescopic spring is fixedly connected to the inside of the telescopic limiting tube.

[0011] Further, in order to realize the stability of the sliding connection of the transmission frame and the sliding rail, stable plates are fixedly connected to the two sides of the inside of the transmission frame, rollers are rotatably installed on the bottom surface of the stable plates, and the stable plates are slidably installed on the two sides of the sliding rail through the rollers on the bottom surface.

[0012] Further, in order to facilitate the maintenance of the structure in the hoisting box, a maintenance door is rotatably installed on one side of the hoisting box.

[0013] Further, in order to realize the movement support of the whole device, universal wheels are rotatably installed on the two sides of the bottom of the support frame.

[0014] The hoisting mechanism drives the hook to move up and down through the steel wire rope, realizes the hoisting and lifting of the suspended object by the hook, the positioning column on the surface of the lifting plate is matched with the limiting groove on the bottom surface of the limiting plate when the hook drives the lifting plate and the suspended object to rise, the end of the steel wire rope can be slidably retracted into the telescopic limiting tube, the telescopic limiting tube is retracted together with the steel wire rope, the support and limiting of the telescopic limiting tube can effectively prevent the swing and deviation of the object when it rises, realizes the stable lifting of the hoisted object, effectively enhances the hoisting operation safety and improves the operation accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a surface structure schematic view of a hoisting machinery safety protection device according to the embodiments of the present application;

[0017] Figure 2 is an internal section view of the telescopic limiting pipe in the hoisting machinery safety protection device according to the embodiment of the present application;

[0018] Figure 3 is a side view of the hoisting machinery safety protection device according to the embodiment of the present application;

[0019] Figure 4 is Figure 3 is an enlarged schematic view of position A in the figure;

[0020] Figure 5 is a bottom view of the hoisting machinery safety protection device according to the embodiment of the present application;

[0021] Figure 6 is Figure 5 is an enlarged schematic view of position B in the figure.

[0022] In the figure:

[0023] 1, support frame; 2, sliding rail; 3, transmission frame; 4, hoisting box; 5, hoisting mechanism; 501, transmission motor one; 502, speed reducer; 503, winding drum; 6, steel wire rope; 7, telescopic limiting pipe; 8, lifting hook; 9, lifting plate; 10, limiting plate; 11, positioning column; 12, limiting groove; 13, transmission motor two; 14, transmission roller; 15, telescopic spring; 16, stabilizing plate; 17, roller; 18, maintenance door; 19, universal wheel. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] According to the embodiments of the present application, a hoisting machinery safety protection device is provided.

[0026] Embodiment one:

[0027] As Figures 1-6As shown, according to the utility model embodiment of a kind of hoisting machinery safety protection device, including a pair of steel structure material support frame 1, the top of support frame 1 is fixedly connected with sliding rail 2, sliding rail 2 surface sliding installation transmission frame 3, the bottom of transmission frame 3 is fixedly connected with hoisting box 4, hoisting box 4 inside is equipped with hoisting mechanism 5, for the hoisting lifting of object provides power;Hoisting mechanism 5 inside is fixedly installed with wire rope 6, the bottom surface of hoisting box 4 is fixedly connected with telescopic limiting pipe 7, telescopic limiting pipe 7 has multiple metal pipes and is connected into, it can be telescopic under external force;The end of wire rope 6 is slidably connected with lifting hook 8 through telescopic limiting pipe 7, for hanging various objects that need to be lifted;Lifting hook 8 surface is fixedly connected with lifting plate 9, the bottom of telescopic limiting pipe 7 is fixedly connected with limiting plate 10, the surface of lifting plate 9 both sides is fixedly connected with positioning column 11, the bottom surface of limiting plate 10 is opened with limiting slot 12, positioning column 11 is matched with limiting slot 12, when wire rope 6 drives lifting hook 8 to rise, the positioning column 11 of the surface of lifting plate 9 can be cooperated to be installed into limiting slot 12, the limiting of wire rope 6 by telescopic limiting rod, hoisting hook 8 and the object that hangs can effectively prevent swing and deviation.

[0028] As Figures 1-6 As shown, hoisting mechanism 5 includes transmission motor one 501 fixedly installed in one side inside hoisting box 4, the output end of transmission motor one 501 is fixedly connected with speed reducer 502, the speed reducer 502 is worm gear speed reducer 502, for increasing the torque of transmission motor one 501 output, and realizes self-locking function;The output end of speed reducer 502 is fixedly connected with winding drum 503, one end of wire rope 6 is fixedly installed on winding drum 503, rotates winding drum 503 of the output end of transmission motor one 501 by transmission motor one 501, realizes wire rope 6 free retraction;Transmission frame 3 one side inside is fixedly installed with transmission motor two 13, transmission motor two 13 transmission shaft is fixedly connected with transmission roller 14, rotates transmission roller 14 by transmission motor two 13, so that transmission frame 3 can realize automatic movement on sliding rail 2;Telescopic limiting pipe 7 inside is fixedly connected with telescopic spring 15, for telescopic limiting pipe 7 when not being subjected to external force, can be automatically extended by the elastic force of telescopic spring 15;Transmission frame 3 inside both sides are fixedly connected with stable plate 16, the bottom surface of stable plate 16 is rotatably installed with gyro wheel 17, stable plate 16 is slidably installed in the both sides of sliding rail 2 by the gyro wheel 17 of bottom surface, for increasing the stability of transmission frame 3 on sliding rail 2 movement, and reduce the friction force when the both contact;Hoisting box 4 one side is rotatably installed with access door 18, for opening afterhand to hoisting box 4 inside structure is overhauled;The bottom of support frame 1 both sides is rotatably installed with two pairs of universal wheels 19, for moving support to support frame 1.

[0029] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0030] In summary, by means of the above technical scheme of the utility model, in actual use, the object to be lifted is hung on the lifting hook 8, the winding drum 503 at the output end of the speed reducer 502 is driven by the transmission motor 501 to rotate, the steel wire rope 6 is retracted and wound on the surface of the winding drum 503, when the lifting hook 8 is lifted by the steel wire rope 6, the positioning column 11 on the surface of the lifting plate 9 can be fitted into the limiting groove 12, and the end of the steel wire rope 6 can be slidably retracted into the telescopic limiting tube 7, so that the telescopic limiting tube 7 is retracted together with the steel wire rope 6, through the support and limiting of the telescopic limiting tube 7, the object can be effectively prevented from swinging and deviating during lifting, and stable lifting of the object is realized.

[0031] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A safety shield for a hoisting machine, characterized in that The utility model relates to a lifting device, including support frame (1), the top of support frame (1) is fixedly connected with sliding rail (2), the surface of sliding rail (2) is slidably installed with transmission frame (3), the bottom of transmission frame (3) is fixedly connected with hoisting box (4), the inside of hoisting box (4) is equipped with hoisting mechanism (5), the inside of hoisting mechanism (5) is fixedly installed with steel wire rope (6), the bottom surface of hoisting box (4) is fixedly connected with telescopic limiting pipe (7), the end of steel wire rope (6) is slidably connected with lifting hook (8) through telescopic limiting pipe (7), the surface of lifting hook (8) is fixedly connected with lifting plate (9), the bottom of telescopic limiting pipe (7) is fixedly connected with limiting plate (10), the surface both sides of lifting plate (9) are fixedly connected with positioning column (11), the bottom surface of limiting plate (10) is opened with limiting groove (12), and positioning column (11) is matched with limiting groove (12).

2. A load handling safety shield according to claim 1, wherein, The hoisting mechanism (5) includes a transmission motor one (501) fixedly installed on one side inside the hoisting box (4), the output end of the transmission motor one (501) is fixedly connected with a speed reducer (502), the output end of the speed reducer (502) is fixedly connected with a winding drum (503), and one end of the steel wire rope (6) is fixedly installed on the winding drum (503).

3. A safety shield for a hoisting machine according to claim 1, characterized in that The inside one side of transmission frame (3) is fixedly installed with transmission motor two (13), and the transmission shaft of transmission motor two (13) is fixedly connected with transmission roller (14).

4. A load handling safety shield according to claim 1, wherein, The inside of telescopic limiting pipe (7) is fixedly connected with telescopic spring (15).

5. A load handling safety shield according to claim 1, wherein, The inside both sides of transmission frame (3) are fixedly connected with stable plate (16), and the bottom surface of stable plate (16) is rotatably installed with roller (17), and stable plate (16) is slidably installed on both sides of sliding rail (2) through the roller (17) on the bottom surface.

6. A load handling safety shield according to claim 1, wherein, One side of hoisting box (4) is rotatably installed with access door (18).

7. A load handling safety shield according to claim 1, wherein, The bottom both sides of support frame (1) are rotatably installed with universal wheel (19).

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