CN211688035U

CN211688035U - Overhead traveling crane main shaft safety device

Info

Publication number: CN211688035U
Application number: CN201922136397.8U
Authority: CN
Inventors: 苗军虎
Original assignee: Shanxi Jianlong Industrial Co Ltd
Current assignee: Shanxi Jianlong Industrial Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-10-16
Anticipated expiration: 2029-12-03

Abstract

The utility model is suitable for a smelting technical field provides a overhead traveling crane main shaft safety device, including the body subassembly that is used for the overhead hoist, the body subassembly includes gearbox, axle, wire rope cylinder and outer ring gear, the axle is located inside the gearbox, one side of gearbox is provided with the internal gear, the wire rope cylinder is located one side that the internal gear kept away from the gearbox, the outer ring gear is located the below of internal gear; by arranging the outer gear ring and the inner gear, after the shaft neck is broken, the power of the gearbox can not be applied to the steel wire rope roller through the shaft, and meanwhile, under the action of the gravity of the steel wire rope roller and the downward pulling force of the steel wire rope, the steel wire rope roller falls downwards and drives the inner gear to fall into the outer gear ring, so that the inner gear and the outer gear ring are meshed with each other, the steel wire rope roller is prevented from continuously falling and rotating, and the purpose of ensuring safety is achieved.

Description

Overhead traveling crane main shaft safety device

Technical Field

The utility model belongs to the technical field of smelt, especially, relate to a crown block main shaft safety device.

Background

In the current smelting production, molten iron in a steel-making area is transported or conveyed by an overhead traveling crane, wherein the molten iron is mainly driven by a motor through a speed reducer to drive a steel wire rope, the steel wire rope is hoisted through a pulley block, and in the process, the neck of a steel wire rope drum shaft is subjected to the torque force of the hoisting and braking of the steel wire rope, the weight hung by the steel wire rope and the gravity of the steel wire rope drum shaft, so that the neck of the steel wire rope drum shaft forms stress concentration; when certain conditions are reached, breakage can occur.

After the steel wire rope drum shaft is broken, the steel wire rope drum loses power, so that a hung heavy object slides down, and a major accident is formed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a crown block main shaft safety device aims at solving wire rope drum shaft and breaks the back, and the wire rope cylinder can lose power, leads to the heavy object landing of hanging, forms the problem of major accident.

The utility model discloses a realize like this, a overhead traveling crane main shaft safety device, including the body subassembly that is used for overhead hoist, the body subassembly includes gearbox, axle, wire rope cylinder and outer ring gear, the axle is located inside the gearbox, just the axle with the gearbox rotates the connection, one side of gearbox is provided with the internal gear, just the internal gear with axle fixed connection, the wire rope cylinder is located the internal gear is kept away from one side of gearbox, just the wire rope cylinder with internal gear fixed connection, the cover is equipped with wire rope on the lateral wall of wire rope cylinder, outer ring gear is located the below of internal gear, just outer ring gear with gearbox fixed connection.

Preferably, the body assembly further comprises a first bearing seat, the first bearing seat is located between the gearbox and the internal gear, and the first bearing seat is rotatably connected with the shaft.

Preferably, the body assembly further comprises a second bearing seat, the second bearing seat is located on one side of the steel wire rope roller far away from the internal gear, and the second bearing seat is rotatably connected with the shaft.

Preferably, a support member is arranged below the first bearing seat, one end of the support member is fixedly connected with the gearbox, and the other end of the support member is fixedly connected with the outer gear ring.

Preferably, bolts are screwed in the second bearing seat and the first bearing seat.

Preferably, the inner gear and the outer gear are adapted.

Compared with the prior art, the beneficial effects of the utility model are that: by arranging the outer gear ring and the inner gear, after the shaft neck is broken, the power of the gearbox can not be applied to the steel wire rope roller through the shaft, and meanwhile, under the action of the gravity of the steel wire rope roller and the downward pulling force of the steel wire rope, the steel wire rope roller falls downwards and drives the inner gear to fall into the outer gear ring, so that the inner gear and the outer gear ring are mutually meshed, the steel wire rope roller is prevented from continuously falling and rotating, the heavy object is prevented from continuously falling while the steel wire rope cannot fall, and the purpose of ensuring safety is achieved.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of a first bearing seat in the body assembly of the present invention;

in the figure: 1-body component, 11-gearbox, 12-shaft, 13-internal gear, 14-wire rope roller, 15-wire rope, 16-external gear ring, 17-first bearing seat, 18-second bearing seat, 181-bolt and 19-support piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-2, a crown block spindle safety device comprises a body assembly 1 for a lifting device, the body assembly 1 comprises a gearbox 11, a shaft 12, a wire rope roller 14 and an outer gear ring 16, the shaft 12 is located inside the gearbox 11, the shaft 12 is rotatably connected with the gearbox 11, an inner gear 13 is arranged on one side of the gearbox 11, the inner gear 13 is fixedly connected with the shaft 12, the wire rope roller 14 is located on one side, away from the gearbox 11, of the inner gear 13, the wire rope roller 14 is fixedly connected with the inner gear 13, a wire rope 15 is sleeved on the outer side wall of the wire rope roller 14, the outer gear ring 16 is located below the inner gear 13, and the outer gear ring 16 is fixedly connected with the gearbox 11.

In the present embodiment, the transmission case 11 is of a type HAFEIBS09, in which the inside of the transmission case 11 is mainly composed of gears and a rotating shaft, and a speed change torque is generated by different gear combinations; the shaft 12 between the gearbox 11 and the annulus gear 13 is the neck of the shaft 12; the wire rope drum 14 is also fixedly connected with the shaft 12;

by arranging the shaft 12, wherein the shaft 12 is fixedly connected with the gear inside the gearbox 11, when the motor drives the gear inside the gearbox 11 to work, the gears inside the gearbox 11 are meshed with each other to rotate, so that the shaft 12 is driven to rotate, the shaft 12 further drives the wire rope roller 14 to rotate, and the wire rope 15 is folded and put down; by arranging the internal gear 13, when the neck of the shaft 12 is broken, the wire rope roller 14 is enabled to fall downwards under the action of the downward pulling force of the wire rope 15, and the internal gear 13 is driven to fall into the external gear ring 16, so that the internal gear 13 and the external gear ring 16 are meshed with each other, and heavy objects are prevented from falling; by arranging the steel wire rope roller 14, the steel wire rope 15 is driven to move when the steel wire rope roller 14 rotates, so that the processes of folding and unfolding are realized; by arranging the steel wire rope 15, one end of the steel wire rope 15 is fixedly connected with the steel wire rope roller 14, and the other end of the steel wire rope 15 is wound on the outer side wall of the steel wire rope roller 14 and is connected with the external pulley block, so that the molten steel can be hoisted under the action of the external pulley block and the device.

In the embodiment, the gearbox 11 is connected with an external motor, one end of the steel wire rope 15, which is far away from the end connected with the steel wire rope roller 14, is connected with an external pulley block, and finally, molten steel is connected with the pulley block, the external motor is started, so that the external motor drives a gear in the gearbox 11 to rotate, the shaft 12 is driven to rotate, the shaft 12 drives the steel wire rope roller 14 to rotate, and the steel wire rope 15 is further put down or put up, so that the molten steel is hoisted;

when the axle neck part breaks because of some special reasons, the power of gearbox 11 no longer conducts on the wire rope cylinder 14 through axle 12, wire rope cylinder 14 falls downwards because of self gravity and the decurrent pulling force of wire rope 15 simultaneously, internal gear 13 on the wire rope cylinder 14 falls into in outer ring gear 16 when falling, make internal gear 13 and outer ring gear 16 interlock each other, and prevent wire rope cylinder 14's rotation, prevent to lose control and cause the accident, thereby this device has realized the axle on the wire rope cylinder of overhead traveling crane and has broken and guarantee the implementation scheme of safe preferred, have lower cost and realize fabulous effect.

Further, the body assembly 1 further comprises a first bearing seat 17, the first bearing seat 17 is located between the transmission case 11 and the internal gear 13, and the first bearing seat 17 is rotatably connected with the shaft 12.

In the present embodiment, by providing the first bearing seat 17, an angular contact bearing is disposed inside the first bearing seat 17, and an outer side wall of the angular contact bearing is fixedly connected with the first bearing seat 17, and an inner side wall of the angular contact bearing is fixedly connected with the shaft 12, so that the shaft 12 is rotatably connected with the first bearing seat 17 through the angular contact bearing, so that the shaft 12 is supported by the first bearing seat 17.

Further, the body assembly 1 further comprises a second bearing block 18, the second bearing block 18 is located on the side of the wire rope drum 14 far away from the internal gear 13, and the second bearing block 18 is rotatably connected with the shaft 12.

In the present embodiment, by providing the second bearing seat 18, wherein an angular contact bearing is also provided inside the second bearing seat 18, and an outer side wall of the angular contact bearing is fixedly connected with the second bearing seat 18, and an inner side wall of the angular contact bearing is fixedly connected with the shaft 12, the shaft 12 is rotatably connected with the second bearing seat 18 through the angular contact bearing;

meanwhile, under the matching of the two angular contact bearings, additional axial force is avoided, and the range of axial clearance is limited, so that the effect of the support shaft 12 is better.

Further, a support member 19 is disposed below the first bearing seat 17, one end of the support member 19 is fixedly connected to the transmission case 11, and the other end of the support member 19 is fixedly connected to the outer ring gear 16.

In the embodiment, by arranging the supporting piece 19, the external gear ring 16 is fixedly connected with the gearbox 11 through the supporting piece 19, after the shaft neck is broken, the internal gear 13 falls onto the external gear ring 16, so that the gravity borne by the external gear ring 16 is decomposed through the supporting piece 19, and the external gear ring 16 is prevented from bearing too much gravity, which causes great abrasion between gears.

Further, the second bearing seat 18 and the first bearing seat 17 are each screwed with a bolt 181.

In the present embodiment, the bolt 181 is provided to facilitate the mounting and fixing of the second bearing housing 18 and the first bearing housing 17 by the bolt 181.

Furthermore, the inner gear 13 and the outer gear 16 are adapted.

In the embodiment, by arranging the inner gear 13 and the outer ring gear 16 to be matched, when the inner gear 13 falls into the outer ring gear 16, the inner gear 13 and the outer ring gear 16 are meshed with each other, the rotation of the wire rope drum 14 is prevented, and accidents caused by runaway are prevented.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a crown block main shaft safety device, includes body subassembly (1) that is used for overhead hoist, its characterized in that: body subassembly (1) includes gearbox (11), axle (12), wire rope cylinder (14) and outer ring gear (16), axle (12) is located gearbox (11) is inside, just axle (12) with gearbox (11) rotate the connection, one side of gearbox (11) is provided with internal gear (13), just internal gear (13) with axle (12) fixed connection, wire rope cylinder (14) are located internal gear (13) are kept away from one side of gearbox (11), just wire rope cylinder (14) with internal gear (13) fixed connection, the cover is equipped with wire rope (15) on the lateral wall of wire rope cylinder (14), outer ring gear (16) are located the below of internal gear (13), just outer ring gear (16) with gearbox (11) fixed connection.

2. The overhead traveling crane main shaft safety device according to claim 1, wherein: the body assembly (1) further comprises a first bearing seat (17), the first bearing seat (17) is located between the gearbox (11) and the internal gear (13), and the first bearing seat (17) is rotatably connected with the shaft (12).

3. The overhead traveling crane main shaft safety device according to claim 2, wherein: the body assembly (1) further comprises a second bearing seat (18), the second bearing seat (18) is located on one side, away from the inner gear (13), of the wire rope drum (14), and the second bearing seat (18) is connected with the shaft (12) in a rotating mode.

4. A crown block spindle safety device according to claim 3, characterized in that: a supporting piece (19) is arranged below the first bearing seat (17), one end of the supporting piece (19) is fixedly connected with the gearbox (11), and the other end of the supporting piece (19) is fixedly connected with the outer gear ring (16).

5. The overhead traveling crane spindle protector according to claim 4, wherein: and bolts (181) are screwed in the second bearing seat (18) and the first bearing seat (17).

6. The overhead traveling crane main shaft safety device according to claim 1, wherein: the inner gear (13) is adapted to the outer ring gear (16).