CN108163766B

CN108163766B - Rotary clamping device for mine supporting beam

Info

Publication number: CN108163766B
Application number: CN201711449053.1A
Authority: CN
Inventors: 郭文孝; 李瑞琴; 张启升; 张丹
Original assignee: North University of China
Current assignee: North University of China
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2020-08-07
Anticipated expiration: 2037-12-27
Also published as: CN108163766A

Abstract

The invention belongs to the technical field of coal mine lower support carrying, and particularly relates to a rotary clamping device for a mine support beam, which solves the problems that a single-span support beam for the advance support of a coal mine return air crossheading roadway swings and is difficult to rotate in the carrying process. The round steel mining support beam carrier is installed on a lifting platform of the mining support beam carrier and comprises a rotary base and a rotary table, wherein the rotary base and the rotary table are arranged up and down and can rotate relatively to a limited angle, two bent plates are symmetrically arranged on the rotary table to form a clamping groove, the width of the clamping groove is larger than that of the mining support beam, a plurality of round steel which is uniformly distributed is arranged on a table surface of the rotary table between the two bent plates, the distribution direction of each round steel is along the symmetrical axis direction of the two bent plates, and the round steel on the rotary table and the round steel at the bottom of the mining support beam are arranged in a crossed mode.

Description

Rotary clamping device for mine supporting beam

Technical Field

The invention belongs to the technical field of underground coal mine support handling, and particularly relates to a rotary clamping device for a mine support beam.

Background

At present, a cross metal hinged beam (or a straight beam) commonly adopted by the fully-mechanized face return air crossheading advance support is matched with a single pillar support mode, so that the labor intensity of workers is high, the risk factor is large, accidents are frequent, and the method is particularly suitable for the advance support of the crossheading of an empty roadway without coal pillar mining. When the supporting beam is conveyed from the working face to the front end, the supporting beam is required to rotate in the roadway by a certain angle due to the fact that the supporting beam is arranged in the roadway, workers are often adopted for conveying at present, the conveying process is difficult to move and rotate, the labor intensity of the workers is high, and the danger coefficient is high.

Disclosure of Invention

The invention provides a rotary clamping device for a mine supporting beam, and aims to solve the problems that a single-span supporting beam for the advance support of an existing coal mine return air crossheading roadway swings and is difficult to rotate in the carrying process.

The invention is realized by adopting the following technical scheme:

a rotary clamping device for a mine supporting beam is arranged on a lifting platform of a mine supporting beam carrier and comprises a rotary base and a rotary table,

the rotary base and the rotary table are arranged up and down, the rotary table is arranged on the upper part and the lower part of the rotary base, and the rotary base and the rotary table can rotate relatively for a limited angle,

the revolving stage on the symmetry set up two bent plates, form the draw-in groove, the width of draw-in groove is greater than mining supporting beam's width, sets up a plurality of round steel of evenly arranging on the revolving stage mesa between two bent plates, the direction of arranging of each round steel is along the symmetry axis direction of two bent plates, round steel and the round steel cross arrangement of mining supporting beam bottom on the revolving stage.

Furthermore, the relative rotation of the rotating base and the rotating platform is completed through a push-pull jack.

Furthermore, rotating base still include bottom plate, gusset, inner skleeve, apron, stopper and connecting seat, bottom plate and apron arrange with one heart from top to bottom and the center part sets up the inner skleeve, two stoppers that the symmetry was provided with on the apron, the stopper has the tapering, and the both sides of one side stopper are provided with the connecting seat respectively, and the connecting seat can be connected with push-and-pull jack's base, changes the direction of rotation of revolving stage through the hookup location who changes push-and-pull jack and both sides connecting seat.

Further, the revolving stage still include chassis, outer sleeve and engaging lug, chassis bottom central point put and to set up the outer sleeve that can overlap in the inner sleeve, set up the engaging lug on the outer sleeve, the initial position of engaging lug is located the perpendicular line of two bent plate symmetry axes, still is provided with straight board on the outer sleeve, the turned angle of straight board is injectd through the stopper, two straight boards are symmetrical in the engaging lug setting, the tailpiece of the piston rod of push-and-pull jack is connected to the engaging lug, the tight clamp of supporting beam is realized to the resistance through push-and-pull jack's thrust and stopper.

Further, a bearing is arranged between the inner sleeve and the outer sleeve.

When the supporting beam is transported from the working face to the front end, the supporting beam needs to rotate for a certain angle in the roadway due to the fact that the supporting beam is arranged in the roadway. In the roadway support, the crossheading vehicle can be used for replacing workers to carry, the mechanical carrying of the cross beam is realized, compared with the manual carrying of single columns, the carrying time is reduced, the labor intensity is reduced, the roadway tunneling efficiency is greatly improved, the safety of personnel is guaranteed, and the method has the characteristics of flexibility, convenience, time saving, labor saving and the like. Specifically, the method comprises the following steps:

1. the rotary clamping device for the mine supporting beam has the advantages of compact structure, convenience in installation, large clamping force and flexibility in carrying, the field installation time is greatly shortened, and the mechanical carrying of the beam can be realized;

2. the power can be improved by means of a hydraulic system of the carrier, the adaptability to the underground site of the coal mine is high, the source connection of the hydraulic system is convenient and safe, and the safety of personnel is greatly improved as operating personnel is far away from an anchoring point area during working;

3. connecting seats are respectively arranged on two sides of a rotating base of the rotary clamping device of the supporting cross beam for the mine, the rotating direction of the rotary clamping device can be changed by changing the connecting position of the pushing jack, and the rotary clamping device is convenient to operate.

4. The rotary clamping device for the mine supporting beam mainly realizes rotary clamping through a push-pull jack, a bearing, an inner sleeve, an outer sleeve, a limiting block and the like, and is simple in structure and flexible to operate.

5. Round steel is arranged in a clamping groove of a rotary table of the mining supporting beam rotary clamping device and is crossed with the round steel below the beam, the beam can be limited, and the beam is prevented from moving in the clamping groove in a left-right mode.

Drawings

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

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a front view of the swivel base;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is a front view of the turntable;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a side view of FIG. 7;

in the figure: the device comprises a rotating base 1, a rotating table 2, a push-pull jack 3, a pin shaft 4, a bearing 5, a bottom plate 6, a rib plate 7, an inner sleeve 8, a cover plate 9, a limiting block 10, a connecting seat 11, a chassis 12, an outer sleeve 13, a bent plate 14, round steel 15 and a connecting lug 16.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

A rotary clamping device for a mine supporting beam is arranged on a lifting platform of a forward tank car and comprises a rotary base 1, a rotary table 2, a push-pull jack 3, a pin shaft 4 and a bearing 5. The rotating base 1 comprises a bottom plate 6, a rib plate 7, an inner sleeve 8, a cover plate 9, a limiting block 10 and a connecting seat 11. The rotating platform 2 mainly comprises a chassis 12, an outer sleeve 13, a bent plate 14, round steel 15 and a connecting lug 16. The outer sleeve 13 of the rotating platform 2 is sleeved on the inner sleeve 9 of the rotating base 1, the bearing 5 is arranged in the middle, and the push-pull jack 3 is respectively connected between the connecting seat 11 of the rotating base 1 and the connecting lug 16 of the rotating platform 2 through the pin shaft 4. The round steel 15 of the rotating platform 2 is arranged in the clamping groove between the bent plates at two sides.

The rotating base 1 is provided with two connecting seats 11, and the rotating direction of the rotating platform 2 can be changed by changing the connecting position of the push-pull jack 3.

Between the inner sleeve 8 of the rotating base 1 and the outer sleeve 13 of the rotating table 2, bearings 5 are arranged, reducing friction during rotation.

The rotating base 1 is provided with a limiting block 11, and the supporting beam is clamped tightly through the thrust of the push-pull jack 3 and the resistance of the limiting block 10.

The two sides of the rotating platform 2 are provided with bent plates 9 to form clamping grooves, so that the supporting beams can easily fall into the grooves. At the same time, round steel 15 is respectively supported and arranged on the upper side of the groove and the lower side of the supporting beam, so that the supporting beam can be prevented from moving left and right in the groove.

The invention is mainly used for a tunnel for carrying a single-span supporting beam by an underground return air crossheading of a coal mine, and when the device is used, firstly, a rotary clamping device of the supporting beam for the mine is arranged on a lifting platform of a crossheading vehicle, and the crossheading vehicle is driven to the lower part of a single-span supporting device at the tail part of the machine; then aligning a clamping groove of the mine supporting beam rotary clamping device to the middle part of a beam of the supporting device, and lifting the lifting platform until the beam falls into the clamping groove; then, the lifting platform is lowered, the jack is pushed and pulled to enable the rotating platform to rotate, and the supporting device is clamped in a rotating mode; and finally, transporting the cross beam to the front end of the roadway along the tank car, rotating the rotating platform to an initial position by receiving the push-pull jack, lifting the lifting platform until the cross beam is jacked, and finishing the whole process.

Claims

1. A rotary clamping device for a mine supporting beam is characterized in that the rotary clamping device is arranged on a lifting platform of a mine supporting beam carrier and comprises a rotary base (1) and a rotary table (2),

the rotary base (1) and the rotary table (2) are arranged up and down, the rotary table (2) is arranged on the upper part, the rotary base (1) is arranged on the lower part, the rotary base and the rotary table can rotate relatively for a limited angle,

the rotary table (2) is symmetrically provided with two bent plates to form clamping grooves, the width of each clamping groove is larger than that of the mining supporting beam, a plurality of round steel bars which are uniformly distributed are arranged on the rotary table between the two bent plates, the distribution direction of each round steel bar is along the symmetrical axis direction of the two bent plates, and the round steel on the rotary table is crossed with the round steel at the bottom of the mining supporting beam;

the relative rotation of the rotating base (1) and the rotating platform (2) is completed through a push-pull jack (3);

the rotary base (1) comprises a bottom plate (6), a rib plate (7), an inner sleeve (8), a cover plate (9), limiting blocks (10) and connecting seats (11), wherein the bottom plate (6) and the cover plate (9) are concentrically arranged up and down, the inner sleeve (8) is arranged at the center of the bottom plate and the cover plate, the two limiting blocks are symmetrically arranged on the cover plate, the limiting blocks have conicity, the connecting seats are respectively arranged on two sides of the limiting block on one side, the connecting seats can be connected with bases of push-pull jacks, and the rotary direction of the rotary table (2) is changed by changing the connecting positions of the push-pull jacks (3) and;

revolving stage (2) including chassis (12), outer sleeve (13) and engaging lug (16), chassis (12) bottom central point put and to set up outer sleeve (13) that can overlap in inner sleeve (8), set up engaging lug (16) on the outer sleeve, the initial position of engaging lug is located the perpendicular line of two bent plate symmetry axes, still be provided with straight board on the outer sleeve, the turned angle of straight board is injectd through the stopper, two straight boards are symmetrical in engaging lug (16) setting, the tailpiece of the piston rod of push-and-pull jack is connected to the engaging lug, the thrust through push-and-pull jack (3) and the resistance of stopper (10) realize supporting beam's the clamp tightly.

2. A mining support beam rotary clamping device according to claim 1, characterised in that a bearing (5) is arranged intermediate the inner sleeve (8) and the outer sleeve (13).