CN2175749Y

CN2175749Y - Outside motive lateral bottom unloading type shaft skip

Info

Publication number: CN2175749Y
Application number: CN 93244277
Authority: CN
Inventors: 余洪生; 王长毅
Original assignee: Beijing Coal Design & Research Inst
Current assignee: Beijing Coal Design & Research Inst
Priority date: 1993-11-17
Filing date: 1993-11-17
Publication date: 1994-08-31
Anticipated expiration: 2003-11-17

Abstract

The utility model provides an external dynamic side bottom unloading type shaft skip, which adopts a double centre fan-shaped gate structure. Stroke for the claw of an unloading device to open and close the gate is short, which leads the skip to have the advantage of light weight of external dynamic side unloading plate gate shaft skip and leads the skip to improve the condition of long unloading time. The skip gate is suitable for shaft lifting in mines, such as coal, metallurgy, chemical industry, etc. with the advantages of small opening resistance, small lifting resistance, convenient processing and manufacture, and little scattering and leakage of material in the course of unloading.

Description

Outside motive lateral bottom unloading type shaft skip

The utility model relates to a kind of vertical shaft for mine lifting container.

In coal, metallurgy and chemical mine shaft hoisting, skip bucket is a kind of of lifting container.How to design rational skip bucket according to the section of pit shaft and the ability of lifting winch, be a key factor that influences mine capacity.Skip bucket commonly used has automatic unloading and outer power to unload two kinds in the shaft hoisting at present.Automatically on the unloading skip bucket unloading roller is arranged, when rising to predetermined altitude, gig runs slowly, and roller enters the derrick dump rail, forces gate opening to unload.This mode unloading time is short, but skip bucket complex structure, gate weight are big, will overcome the friction force of gate deadweight and material and gatehouse during unloading, so the bigger power of starting gate needs.It is not definitely straight installing because of cage guide again, and skip bucket impacts bigger when the turnover dump rail, even may be blocked by bend, and gate very easily damages.For example Liyingzi No.1 Mine, Huainan Mine Bureau once changed 7 at gate, 20 on gate axle in 2 years, damaged 3 in skip bucket (one of them damages for accident), had a strong impact on mine production.Outer power unloading skip bucket is the gate of skip bucket is mentioned to unload by being fixed on discharging gear on the derrick, so it is light to unload the skip bucket total weight more automatically.Under same lifting winch, same service conditions, can increase the weight that promotes material, for old well reorganization and expansion provides the condition that makes things convenient for.Reduced impact load during simultaneously this dustpan unloading, the gate damaged condition also take a favorable turn slightly.But the gate of this outer power side bottom-dump skip is flat, its structure has wedge rope_ring, commutation connecting rod, back timber, turnover panel, bucket case, column, cage guide guide piece, clump weight, bottom girder, load port, and respectively there are two guide wheel left-hand threads the gate both sides on the vertical guide rail in the dustpan unloading mouth outside.Driving gate by the unloading hook during unloading upwardly opens along guide rail.Unloading back hook falls after rise, and gate is resetted.There is following point in this skip bucket: 1. during opening and closing shutter, the hook stroke of discharging gear long (twice that is about the gate height) causes unloading time long, influences the hoisting capacity of mine.2. in opening process, the gate medial surface contacts with material all the time, and opening resistance is big.The reinforcement gusset of gate is in the outside of door, and guide wheel shaft is cantilever position, is prone to the strength phenomenon of spraining during the gate up-and-down movement, causes gate opening difficulty and fragile.When 3. gate had just been opened, because material the place ahead does not have dumping apron, the initial velocity when material leaves skip bucket was zero, thereby causes material to spill, and increases shaft bottom cleaning work amount.4. the center of gravity of empty skip bucket and the center of gravity apart from each other that weighs skip bucket increase the cage guide wearing and tearing lifting resistance are strengthened.

The purpose of this utility model is exactly that a kind of outer power side hopper-bottom vertical shaft skip bucket that can shorten unloading time will be provided, and makes that it promotes that resistance is little, gate is not fragile and opening resistance is little, reduces material during unloading and spill.

For achieving the above object, the utility model has adopted following structure:

1. by the left and right fan-shaped side plate of symmetry be bound up on the sector gate that the arc door-plate between them is formed, on the pedestal that is fixed on the bucket case, gate can rotate around the gate axle that is fixed on the bucket case left and right fan-shaped side plate by the gate axle mounting;

2. sector gate adopts two division centers that center of gyration and geometric centre do not overlap, and the geometric centre of arc door-plate is in the IV quadrant of rectangular coordinate system (Y direction make progress and, X-direction parallel with the skip hoisting direction to the right) that with the center of gyration is the coordinate center;

3. the opening device that can mention sector gate for discharging gear is installed on sector gate, and during unloading, hook is mentioned the opening device of sector gate upper end, and the drive sector gate upwardly opens and unloads.The completion of discharge hook falls after rise, and gate resets;

4. be equipped with in the discharge port both sides and be fixed on bottom girder and the column and form the guiding side plate of guide chutes with the base plate front end.

For starting gate is convenient opening device is made: with the arc door-plate of the hook correspondence position of discharging gear on be welded with two and open plates, open between the plate roller shaft be housed, roller is contained on the roller shaft.To the impact of bucket case, open the plate top at every group and be welded with dash plate when alleviating gate opening, with the corresponding bucket case of gate opening final position end face on, removable cushion rubber is housed.

The utility model has the advantages that: the ultimate range that the ultimate range that gate moves during 1. owing to unlatching moves less than bulkhgead gate, so the hook stroke is short, thus shortened unloading time; 2. in the gate opening process, the relative material of arc door-plate is done to make a concession motion, has reduced the friction of gate and storeroom, and resistance is little when making starting gate; 3. close together between the center of gravity of the center of gravity of empty skip bucket and heavy skip bucket, thus the lifting resistance reduced; Material has initial velocity earlier through guide chutes when 4. unloading when leaving skip bucket, spills thereby reduce material.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 unloads sector gate vertical shaft skip bucket at the bottom of the outer power side.

Fig. 2 is the sector gate structural front view.

Fig. 3 is a sector gate structure birds-eye view.

The utility model is outer power side hopper-bottom vertical shaft skip bucket, forms (see figure 1) by wedge rope_ring (1), commutation connecting rod (2), back timber (3), turnover panel (4), bucket case (5), column (6), cage guide guide piece (7), clump weight (8), bottom girder (9), load port (10), gate (16).This gate adopts sector gate (16) (see figure 2), promptly is welded with arc door-plate (22) between the left and right fan-shaped side plate (27) of symmetry.Left and right fan-shaped side plate is installed on the pedestal (23) by gate axle (24), and pedestal is welded on the bucket case (5), and gate (16) can rotate around gate axle (24).The geometric centre (25) of the arc door-plate (22) of sector gate is in the IV quadrant of rectangular coordinate system (Y direction upwards and, X-direction parallel with the skip hoisting direction to the right as shown in Figure 2) that with center of gyration (26) is the coordinate center.The arc door-plate is between maximum section N-N of discharge port and discharge port end face M-M, and the arc door-plate outside is welded with strengthens gusset (21).Opening device on the sector gate is: with the arc door-plate of hook (14) correspondence position on be welded with two and open plates (20) (discharging gear (11) is fixed on the derrick, the piston rod of cylinder (12) can drive hook (14) and move along guide rail (15)), open between the plate roller shaft (19) is housed, roller (28) is contained in (see figure 3) on the roller shaft.In the discharge port both sides guiding side plate (17) that is fixed on bottom girder (9) and the column (6) is housed, makes itself and base plate front end form guide chutes.When alleviating gate opening to the impact of bucket case, open plate (20) top at every group and be welded with dash plate (18), with the corresponding bucket case of gate opening final position end face on, removable cushion rubber (13) is housed, dash plate is contacted with cushion rubber, reach the buffering purpose.Because material is not adorned to the discharge port end face in skip bucket gate below, make little than bulkhgead gate skip bucket of distance between the center of gravity of the center of gravity of sky skip bucket and heavy skip bucket, thereby reduced the lifting resistance.

Claims

1, a kind of outer power side hopper-bottom vertical shaft skip bucket that wedge rope_ring (1), commutation connecting rod (2), back timber (3), turnover panel (4), bucket case (5), column (6), cage guide guide piece (7), clump weight (8), bottom girder (9), load port (10) are arranged is characterized in that:

1. have by the left and right fan-shaped side plate (27) of symmetry and be bound up on the sector gate (16) that the arc door-plate (22) between them is formed, left and right fan-shaped side plate is installed on the pedestal (23) that is fixed on the bucket case (5) by gate axle (24);

2. the geometric centre of arc door-plate (25) is in the IV quadrant of rectangular coordinate system (Y direction upwards and, X-direction parallel with the skip hoisting direction to the right) that with center of gyration (26) is the coordinate center;

3. the opening device that can mention sector gate for discharging gear is installed on sector gate;

4. be equipped with in the discharge port both sides and be fixed on that bottom girder (9) and column (6) are gone up and form the guiding side plate (17) of guide chutes with the base plate front end.

2, a kind of outer power side hopper-bottom vertical shaft skip bucket as claimed in claim 1, it is characterized in that opening device be with the arc door-plate (22) of hook (14) correspondence position of discharging gear (11) on be welded with two and open plates (20), open between the plate roller shaft (19) is housed, roller (28) is contained on the roller shaft (19).

3, a kind of as claim 1,2 described outer power side hopper-bottom vertical shaft skip buckets, it is characterized in that opening plate (20) top at every group is welded with dash plate (18), with the corresponding bucket case of gate opening final position end face on, removable cushion rubber (13) is housed.