CN2262021Y

CN2262021Y - Double rope winding cage lifting equipment

Info

Publication number: CN2262021Y
Application number: CN 95219684
Authority: CN
Inventors: 程志福
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-24
Filing date: 1995-08-24
Publication date: 1997-09-10
Anticipated expiration: 2005-08-24

Abstract

The utility model relates to a double-rope winding type cage lifting device for mines, which is composed of a double-rope winding roller, two lifting steel cables, a cage and a balanced cam on the top of the cage. The utility model is characterized in that two ropes are connected with pin holes on both sides of the balanced cam through a connecting plate; the balanced cam is fixed to a bearing seat; the lower part of the balanced cam is abutted on the spherical part of an inner sleeve; a spring is arranged in the inner sleeve; the inner sleeve can slide in an outer sleeve which is fixed to a bearing and a top beam of the cage. When one of the steel cables is pulled broken, the balanced cam can smoothly rotate 60 DEG because of the buffering action of the spring and the cage can still remain a vertically suspending position. The utility model can prevent the cage from inclining and falling effectively, has the advantages of simple structure and high safety, and is suitable for vertical shafts of small mines.

Description

Duplex type wound form cage winding plant

The utility model belongs to the hard well lifting means in mine, a kind of specifically duplex type wound form cage winding plant.

At present, some small mines and township and village enterprises mine, building the reason of ore deposit initial stage owing to fund and ore deposit amount, only digging Φ 2-2.5M, is the hard well of light section of 100-200M deeply, adopts JTK Φ 0.8-1.2M winch as hard well gig, with the lifting container of well-bucket as lifting personnel and ore, but according to relevant regulations such as " mine safety rules ", bont must meet following requirement: during (1) hard well single-rope hoisting personnel, must establish parachute; (2) need do double-deck rope winding when well depth and put forward man-hour, the reliable and secure measure that prevents the steel rope mutual extrusion should be arranged; (3) use well-bucket lifting personnel, only limit to hard well and dig period.

More than these requirements, for small mines, be difficult to reach, existing mine hoisting equipment used through identifying the typing parachute because complex structure, weight is big, expense is high, and is not too suitable to the small mines of the little winch of general use, the little hard well of Φ 2-2.5M.

The purpose of this utility model is to provide a kind of later-model small mines hard well lifting means, it is divided into two with the cylinder one of single-drum hoist becomes duplex type and twines, and the equilibrium cam of dress duplex type suspention on the cage top, thereby have the function of multi-rope hoist, so can bob device in the air.This apparatus structure is simple, invests for a short time, only needs do slightly to transform and can use existing hoisting equipment, is specially adapted to small mines.

By the duplex type wound form cage winding plant that the utility model proposed, it is by winch, hoisting cable, cage and guide rope are formed, it is characterized in that in the middle of the winch cylinder dividing plate being arranged, make it to become duplex type and twine cylinder, one cam that falls chicken-core-shape is arranged on the cage top, duplex type is by the wedge shape wire clips, the pin-and-hole of the left and right sides is connected on joint plate and bolt and the cam, cam is fixed on the cage back timber by axle and bearing seat, the bulb of cover in the cam bottom is being supported, interior cover can slide in overcoat, overcoat is fixed on bearing seat and the cage back timber, in the interior cover spring is housed, because the effect of spring, the bulb at interior cover top closely withstands recess or its two side portions of cam all the time.

Fig. 1 makes later-model structural representation for this reality.

Fig. 2 is an attachment component between the utility model cage and the steel rope.

Fig. 3 is the lateral plan of Fig. 2.

Embodiment is explained in detail the utility model below in conjunction with accompanying drawing.

One cylinder dividing plate (12) is arranged in the middle of the cylinder of the employed single-drum hoist of the utility model (11), it is divided into two with cylinder one, two hoisting cables (14) on the cylinder link with bolt (8) with equilibrium cam (1) by wedge shape wire clips (15), joint plate (7), and the safety factor of every steel rope of present embodiment is 8-9.Because separating the back width, cylinder (11) has been kept to half, so need to do two layers of winding, in order to prevent steel wire floor levels and mutual with extruding mutually, so along garden week the pi/2 girth is set in each cylinder dividing plate both sides, transversal surface is the transition block (13) of right-angled triangle, and its material can be nylon products.

On the equilibrium cam (1) of chicken-core-shape two pin-and-holes (21) are arranged, form the equilibrium arm force of this cam, it is connected respectively by two bolts (8) and two joint plates (7); Gusset piece (7) is connected and fixed by bolt (6) and steel rope, constitutes the duplex type suspention.Axle (10) is housed in the heart hole of cam (1), and interior edge copper sheathing (22) makes cam (1) can freely rotate around axle (10), in servicely at ordinary times plays equilibrium activity.Axle (10) is installed in the bearing seat (9), bearing seat (9) is screwed on overcoat (3) and cage back timber (5), back-off has the interior cover (2) of a dribbling head in overcoat (3), retarding spring (4) is equipped with in interior cover (2) inside, make the recess that closely withstands cam under the bulb normal equilibrium situation of interior cover (2), cam recess both sides are the uniform retarded motion curve, when the cam left-right rotation, interior cover (2) can be made lifting moving in overcoat (3), because the top power of spring (4) can play braking and buffering effect.In this example, equilibrium arm is apart from L=500MM, i.e. the width between centers of bolt (8); Angle of equilibrium α=30 °: arm subtended angle β=120 °.The accent rope scope hn=217MM of steel rope can remedy the problem that the new elastic elongation of restricting of two winding sum of errors between the steel rope does not wait like this, plays equilibrium activity.In addition, also may command is when certain single rope is broken, and the instantaneous added value of the tension force of another root rope, can not produce and fall to prevent the impact of excessive loads less than in 2.8 times.

The utility model adopts flexible cage guide, selects guide rope (18) the 3-4 root of Φ 25 for use, is made up of rope fastening device (19) and bottom counterweight (20) up and down, and container and borehole wall minimum clearance are 200-250MM.Like this pit shaft girder steel can be installed, compare with employing wooden cage guide or rigidity cage guide and can save ten thousand yuan of engineering cost 15-20, reduce one month transformation time of stopping production.As adopt wooden cage guide and safety card thereof, and do not meet the mine fire protection requirement on the one hand, on the other hand because of small towns mine electric power supply mal, have a power failure if meet; Safety card regular meeting produces card jar phenomenon.If adopt the rigidity cage guide, domestic does not still have the safety card that reaches a standard, even join special-purpose safety rope in addition, uses the safety card of pattern such as FS, also will be because of its complex structure, weight increase expense greatly, and reduced the hoisting capacity of small winch significantly.

Anti-fall device of the present utility model is like this work: broken when the cage of adorning mine car (17) (16) runs into wherein steel cable suddenly in lifting process, because the brake portion in cam recess both sides is designed to the uniform movement curve, and the buffer action of spring, therefore cam is steadily rotated 60 ° slowly, and there is not impact phenomenon, make cage continue to keep the vertical hanging position, can avoid generation personnel and material dangerous phenomenon such as in cage, to topple over like this, play buffering and reset response.

Not only do not had when the utility model can solve for a long time light section shaft Single-rope hoisting personnel safety card but also The hard nut to crack of not having other safety measures has simple in structurely, safe and reliable, and labor and material saving is carried High efficiency advantage is specially adapted to the vertical shaft of small towns small mines.

Claims

1, the duplex type wound form cage winding plant that a kind of vertical shaft for mine uses, it is by winch, hoisting cable, cage and guide rope are formed, it is characterized in that in the middle of the winch cylinder dividing plate being arranged, cylinder one is divided into two, make it to become duplex type and twine cylinder, one cam that falls chicken-core-shape is arranged on the cage top, duplex type is by the wedge shape wire clips, the pin-and-hole of the left and right sides is connected on joint plate and bolt and the cam, cam is fixed on the cage back timber by axle and bearing seat, the bulb of cover in the cam bottom is being supported, interior cover can slide in overcoat, overcoat is fixed on bearing seat and the cage back timber, in the interior cover spring is housed, because the effect of spring, the bulb at interior cover top closely withstands recess or its two side portions of cam all the time.

2, by the described duplex type wound form of claim 1 cage winding plant, its hold levy the both sides that are cylinder dividing plate on the winch cylinder along be provided with the pi/2 girth garden week, transversal surface is the transition block of right-angled triangle.

3, by claim 1 or 2 described duplex type wound form cage winding plants, it is characterized in that equilibrium arm on the equilibrium cam apart from L=500MM, angle of equilibrium α=30 °, arm subtended angle β=120 °.