CN210973624U

CN210973624U - Crane lifting limiting protection device

Info

Publication number: CN210973624U
Application number: CN201921489796.6U
Authority: CN
Inventors: 柏涛; 韩成树; 谭健; 沈福建; 张本所; 裴文斌; 陈玉保; 刘陈; 王佃报
Original assignee: Tongling Special Equipment Inspection Center
Current assignee: Tongling Special Equipment Inspection Center
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-07-10
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses a protection device for limiting the lifting of a crane, which comprises a limiting groove, a second limiting plate, a first extrusion device, a second extrusion device, a first fixing plate and a second fixing plate, the limiting groove is arranged to limit the steel wire rope of the crane to a certain extent, the steel wire rope is prevented from being wound during the process of lifting articles, the stability during lifting is ensured, the second extrusion device is arranged at the position where the first extrusion device is arranged to realize the purpose of extruding the two sides of the steel wire rope, thereby realizing the limit of the steel wire rope, avoiding the occurrence of the conditions that when the limiting mechanism of the crane breaks down, the steel wire rope continuously moves to cause the falling of articles from the air to cause the damage of the articles or the injury of personnel, and the like, thereby the effect of protection has been played, has increased the frictional force between second limiting plate inner wall and the wire rope through setting up the rubber arch to further improved the spacing effect to wire rope.

Description

Crane lifting limiting protection device

Technical Field

The utility model relates to a protection device specifically is a hoist plays to rise spacing protection device.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, and is also called a crown block, a navigation crane and a crane, the crane is matched with steel wire ropes of various types including a phosphating coating steel wire rope, a galvanized steel wire rope and a smooth steel wire rope, and the lifting limit of the crane is a safety protection device which must be configured on the crane.

The existing protection device for limiting the lifting of the crane has unreasonable structure and is not optimized enough in design.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist plays to rise spacing protection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a protection device for the lifting limit of a crane comprises a trolley frame, a lifting appliance is arranged below the trolley frame through a steel wire rope, a first limit plate is arranged between the trolley frame and the lifting appliance and fixedly installed at the bottom of the trolley frame through a connecting rod, the first limit plate comprises a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are both semicircular plates, two sides of the first fixing plate are respectively provided with a fixing piece, the fixing piece and the first fixing plate are made of the same material and are integrally formed, the fixing piece is provided with a threaded through hole for installing a bolt, one side of the first fixing plate is symmetrically provided with two limit grooves for the steel wire rope to pass through, the limit grooves are semicircular grooves, the structures and the specifications of each part of the first fixing plate and the second fixing plate are identical, the first limit device and the second limit device are symmetrically arranged on the first limit plate, the first limit device comprises a first extrusion device and, first extrusion device sets up in the position that first fixed plate top is located spacing groove one side, and first extrusion device includes electric putter and second limiting plate, and electric putter fixed mounting is at first fixed plate top, and electric putter's tailpiece of the piston rod portion fixed mounting has the second limiting plate, and second fixed plate top is just being provided with second extrusion device to first extrusion device's position, and second fixed plate bottom fixed mounting has controller and wireless communication module.

As a further aspect of the present invention: the second limiting plate is an arc-shaped plate, and the inner wall of the second limiting plate is fixedly connected with a rubber bulge.

As a further aspect of the present invention: the first extrusion device and the second extrusion device are identical in structure and specifications of all parts.

As a further aspect of the present invention: the first limiting device and the second limiting device are identical in structure and specifications of all parts.

As a further aspect of the present invention: the electric push rod and the wireless communication module are respectively and electrically connected with the controller through leads, and the electric push rod, the wireless communication module and the controller are respectively and electrically connected with an external power supply through leads.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has more reasonable structure and more optimized design;

1. the limiting groove is arranged to limit the steel wire rope of the crane to a certain extent, so that the steel wire rope is prevented from being wound during the process of lifting articles, and the stability during lifting is ensured;

2. the second extrusion device is arranged at the position where the first extrusion device is arranged to realize the purpose of extruding two sides of the steel wire rope, so that the steel wire rope is limited, and the situation that when the crane limiting mechanism breaks down, the steel wire rope continuously moves to cause the falling of articles from the air to cause article damage or the smashing of personnel and the like is avoided, so that the protection effect is realized;

3. the friction force between the inner wall of the second limiting plate and the steel wire rope is increased by arranging the rubber protrusions, so that the limiting effect on the steel wire rope is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a protection device for limiting the lifting of a crane.

Fig. 2 is a partial structural schematic diagram of a protection device for limiting the lifting of a crane.

Fig. 3 is a schematic structural diagram of a first extrusion device in a protection device for limiting the lifting of a crane.

Shown in the figure: the lifting device comprises a trolley frame 1, a first limiting device 2, a second limiting device 3, a control switch 4, a lifting appliance 5, a first limiting plate 6, a connecting rod 7, a fixing part 8, a first extrusion device 9, a limiting groove 10, a first fixing plate 11, a second fixing plate 12, a second extrusion device 13, an electric push rod 14, a second limiting plate 15, a rubber bulge 16 and a wireless communication module 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a crane lifting limit protection device includes a trolley frame 1, a first limit device 2, a second limit device 3, a controller 4, a lifting device 5, a first limit plate 6, a connecting rod 7, a fixing member 8, a first extrusion device 9, a limit groove 10, a first fixing plate 11, a second fixing plate 12, a second extrusion device 13, an electric push rod 14, a second limit plate 15, a rubber protrusion 16, and a wireless communication module 17, wherein the lifting device 5 is disposed below the trolley frame 1 through a steel wire rope, the first limit plate 6 is disposed between the trolley frame 1 and the lifting device 5, the first limit plate 6 is fixedly mounted at the bottom of the trolley frame 1 through the connecting rod 7, the first limit plate 6 includes the first fixing plate 11 and the second fixing plate 12, the first fixing plate 11 and the second fixing plate 12 are semi-circular plates, two sides of the first fixing member 11 are respectively provided with one fixing member 8, the fixing part 8 and the first fixing plate 11 are made of the same material and are integrally formed, a threaded through hole for installing a bolt is formed in the fixing part 8, two limiting grooves 10 for a steel wire rope to pass through are symmetrically formed in one side of the first fixing plate 11, the limiting grooves 10 are semicircular grooves, the structures and specifications of the first fixing plate 11 and the second fixing plate 12 are identical, a first limiting device 2 and a second limiting device 3 are symmetrically arranged on the first limiting plate 6, the first limiting device 2 comprises a first extrusion device 9 and a second extrusion device 13, the first extrusion device 9 is arranged at the position, located on one side of the limiting grooves 10, of the top of the first fixing plate 11, the first extrusion device 9 comprises an electric push rod 14, a second limiting plate 15 and a rubber bulge 16, the electric push rod 14 is fixedly installed at the top of the first fixing plate 11, and the second limiting plate 15 is fixedly installed at the end part of a piston, the second limit plate 15 is an arc-shaped plate, a rubber bulge 16 is fixedly connected to the inner wall of the second limit plate 15, a second extrusion device 13 is arranged at the position, facing the first extrusion device 9, of the top of the second fixed plate 12, the structures and the specifications of the parts of the first extrusion device 9 and the second extrusion device 13 are the same, the structures and the specifications of the parts of the first limit device 2 and the second limit device 3 are the same, a controller 4 and a wireless communication module 17 are fixedly installed at the bottom of the second fixed plate 12, the model of the controller 4 is s7-300, the controller is manufactured and sold by western Germany corporation, the model of the electric push rod 14 is KHE40, the electric push rod is manufactured and sold by air-driven mechanical technology Limited, Dongguan, the wireless communication module 17 is a WiFi communication module, the model is KB3070 WIDTU, the electric push rod 14 and the wireless communication module 17 are manufactured and sold by Jinbo technology Limited, the electric push rod 14 and the wireless communication module 17 are respectively and electrically connected, the electric push rod 14, the wireless communication module 17 and the controller 4 are electrically connected with an external power supply through wires respectively.

The utility model discloses a theory of operation is:

when the crane needs to be protected from lifting, firstly, the crane steel wire rope penetrates through the limiting groove 10, the first fixing plate 11 and the second fixing plate 12 are fixedly connected by using bolts, the crane steel wire rope is limited by the limiting groove 10, mutual winding between the steel wire ropes in the process of lifting an object is avoided, the stability in lifting is ensured, when the crane limiting mechanism breaks down in the process of lifting the object, an operator can send a signal to the wireless communication module 17, the wireless communication module 17 further sends a signal to the controller 14, the controller 4 further controls the electric push rod 14 to drive the push rod to extend, so that the first limiting plate 6 is pushed to extrude one side of the steel wire rope, the second extruding device 13 is arranged at the position where the first extruding device 9 is arranged to realize the purpose of extruding the two sides of the steel wire rope, thereby realize spacing to wire rope, when avoiding hoist stop gear to break down, wire rope continuously moving leads to article to fall from the sky and causes article damage or injures the emergence of the condition such as personnel of pounding to play the effect of protection, increased the frictional force between 15 inner walls of second limiting plate and the wire rope through setting up rubber bulge 16, thereby further improved the spacing effect to wire rope.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a hoist plays to rise spacing protection device, includes trolley frame (1), its characterized in that: the lifting appliance is characterized in that the lifting appliance (5) is arranged below the trolley frame (1) through a steel wire rope, a first limiting plate (6) is arranged between the trolley frame (1) and the lifting appliance (5), the first limiting plate (6) is fixedly arranged at the bottom of the trolley frame (1) through a connecting rod (7), the first limiting plate (6) comprises a first fixing plate (11) and a second fixing plate (12), the first fixing plate (11) and the second fixing plate (12) are both semicircular plates, two fixing pieces (8) are respectively arranged on two sides of the first fixing plate (11), the fixing pieces (8) are made of the same material as the first fixing plate (11) and are integrally formed, threaded through holes for mounting bolts are formed in the fixing pieces (8), two limiting grooves (10) for the steel wire rope to pass through are symmetrically formed in one side of the first fixing plate (11), the limiting grooves (10) are semicircular grooves, the structures and the specifications of the first fixing plate (11) and the second fixing, first stop device (2) and second stop device (3) are symmetrically arranged on first limiting plate (6), first stop device (2) includes first extrusion device (9) and second extrusion device (13), first extrusion device (9) set up in the position that first fixed plate (11) top is located spacing groove (10) one side, first extrusion device (9) include electric putter (14) and second limiting plate (15), electric putter (14) fixed mounting is at first fixed plate (11) top, the tailpiece of the piston rod portion fixed mounting of electric putter (14) has second limiting plate (15), second fixed plate (12) top is just being provided with second extrusion device (13) to the position of first extrusion device (9), second fixed plate (12) bottom fixed mounting has controller (4) and wireless communication module (17).

2. A protection device for a crane lifting limit according to claim 1, characterized in that: the second limiting plate (15) is an arc-shaped plate, and the inner wall of the second limiting plate (15) is fixedly connected with a rubber bulge (16).

3. A protection device for a crane lifting limit according to claim 1, characterized in that: the first extrusion device (9) and the second extrusion device (13) are identical in structure and specifications of all parts.

4. A protection device for a crane lifting limit according to claim 1, characterized in that: the first limiting device (2) and the second limiting device (3) are identical in structure and specifications of all parts.

5. A protection device for a crane lifting limit according to claim 1, characterized in that: the electric push rod (14) and the wireless communication module (17) are respectively electrically connected with the controller (4) through leads, and the electric push rod (14), the wireless communication module (17) and the controller (4) are respectively electrically connected with an external power supply through leads.