CN2158392Y

CN2158392Y - "U" shaped chute steel

Info

Publication number: CN2158392Y
Application number: CN 93203327
Authority: CN
Inventors: 薛际贵; 张清泉; 星国庆; 韩振江; 付晨; 高国康
Original assignee: ZHANGJIAKOU COAL MINE MACHINERY PLANT
Current assignee: ZHANGJIAKOU COAL MINE MACHINERY PLANT
Priority date: 1993-02-20
Filing date: 1993-02-20
Publication date: 1994-03-09
Anticipated expiration: 2003-02-20

Abstract

The utility model relates to a 'U'-shaped chute steel which is a rolling construction, and is used in the chute of a scraper conveyer in the coal face of a coal mine. The cross-sectional shape of the utility model is approximately in a 'U' shape. Two 'U'-shaped chutes which are spliced in the way of up-and-down symmetry are welded into an m-shaped, which are combined with a convex terminal, a supporting seat, a middle plate and a concave terminal to be welded together to form the chutes with a weldment structure. The utility model can be widely used in the heavy-duty scraper conveyers of double side chain type, double middle chain type and single chain type with large power, large volume and high reliability.

Description

"U" shaped chute steel

The utility model belongs to the chute of coal mining driving surface slat conveyer.

At present, the chute overwhelming majority used of China's coal-mine coal-face forms as M22 type and E22 class integrated rolled ledge steel and termination, bearing, middle plate assembly welding.This chute scantling of structure is less, and intensity and service life are lower.Be subjected to the restriction of ledge steel structure size because of the height of the width of round-link chain and scraper plate, so it is the following slat conveyer of 30 * 108mm that above-mentioned chute can only be suitable for the round-link chain specification, in recent years because the increasing of the supporting coalcutter power of fully-mechanized mining working and the raising of hydraulic support push-pull effort, original M22 and E22 class ledge steel are made does not satisfy matching used requirement far away.

The utility model provides a kind of U type ledge steel, be characterized in the integral type ledge steel that original tradition is used is become split-type structural, strengthened sectional dimension, can reduce rolling difficulty greatly like this, the more important thing is that alerting ability is strong, can with the nose head (1) of corresponding different structure size, bearing (2), on the recessed termination (3) (4), after the following symmetry welding, again with nose head (1), bearing (2), recessed termination (3), middle plate (5) assembly welding forms, highly be 280 millimeters, middle plate (5) is divided into two chambeies up and down with chute, with the guiding of scraper chain about satisfying and the requirement of operation.Bearing (2) can be placed the M36 bolt, in order to the baffle plate and the ramp plate of installation and fastening slat conveyer.Nose head (1) and recessed termination (3) are high manganese steel material, be welded in the front and back end of chute respectively, to improve the linking intensity that its resistance to abrasion also can guarantee the installing and locating between the chute of two ends, this type chute is applicable to that the round-link chain specification is 26 * 92 millimeters a bilateral chain conveyer, is applicable to that also the round-link chain specification is 30 * 108,34 * 126,38 * 137 millimeters two medium chains or a strand conveyer.

In the embodiment of Fig. 4 and Fig. 5, " U " type ledge steel (4) removes 4 degree bevel phase, falling plate (5) inserts respectively in the middle of the type ledge steel of the left and right sides " U ", again with nose head (1), bearing (2), recessed termination (3) assembly welding, formation highly is 310 millimeters a chute, this type chute can be applicable to that the round-link chain specification is 30 * 108 millimeters a bilateral chain conveyer, also is applicable to 34 * 126,38 * 137,42 * 151 millimeters two medium chains or strand conveyer.Make the high strength chute of different specification size with middle plate (5) assembly welding, the requirement of, large conveying quantity high-power, highly efficient and productive, high reliability to satisfy.

Accompanying drawing further specifies specific embodiment:

Fig. 1 is the utility model " U " type ledge steel cross sectional drawing, section form is similar to " U " type, inside groove is in order to the guiding of scraper chain operation, one skew back degree is 14 degree, opposite side is the bevel phase of 45 degree inclined-planes and one 4 degree, 35 millimeters of ledge steel side thickness highly are 139 millimeters, and two " U " type ledge steel constitute 280 millimeters of basical traditional model height behind the upper and lower symmetrical assembly welding of short transverse.

Fig. 2 and Fig. 3 are the front view and the lateral plan of the 280 type chutes that adopt the utility model and make.

Fig. 4 and Fig. 5 are the front view and the lateral plan of the 310 type chutes that adopt the utility model and make.

Chute in Fig. 2 and Fig. 3 embodiment is by " U " type ledge steel

Claims

1, a kind of chute of coal mining driving surface slat conveyer " U " type ledge steel, it is characterized in that: section form is the rolled section steel of approximate " U " type, and its inside groove one skew back degree is 14 degree, and opposite side is 45 degree inclined-planes and one 4 bevel phase of spending.

2, " U " according to claim 1 shape ledge steel is characterized in that: " ∑ " type ledge steel that can be made of upper and lower symmetry two weldings.

3, " U " according to claim 1 type ledge steel structure, it is characterized in that: become chute with nose head (1), bearing (2), recessed termination (3), middle plate (5) assembly welding, the round-link chain specification that can be used for the scraper chain pattern and be bilateral chain, two medium chain or strand is respectively 26 * 92,30 * 108,34 * 126,38 * 137,42 * 151 millimeters slat conveyer.