CN108163766B - Mine Support Beam Rotary Clamping Device - Google Patents

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

Mine Support Beam Rotary Clamping Device

technical field

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

Background technique

At present, the cross metal hinged beam (or straight beam) commonly used in the advanced support of the return air along the trough in the fully mechanized mining face is supported by a single pillar, which has high labor intensity, high risk factor and frequent accidents. This is especially true for the advance support of the gob-side roadway in coal pillar mining. When the support beam is transported from the working face to the front end, since the support beam is arranged in the roadway, the transported support beam needs to be rotated at a certain angle in the roadway. At present, workers are often used to carry it, and it is difficult to move and rotate during the handling process, and the workers The labor intensity is high and the risk factor is high.

SUMMARY OF THE INVENTION

In order to solve the problem that the single-span support beam supported in advance in the current coal mine return air tunnel tunnel swings and is difficult to rotate during the transportation process, the invention provides a mine support beam rotation clamping device.

The present invention adopts the following technical scheme to realize:

The utility model relates to a rotary clamping device for a mining support beam, which is installed on a lifting platform of a mining support beam carrier, and includes a rotating base and a rotating table.

The rotating base and the rotating table are arranged up and down, the rotating table is on the top, the rotating base is on the bottom, and the two can rotate relative to a limited angle,

Two curved plates are symmetrically arranged on the rotating table to form a clamping groove, the width of the clamping groove is larger than the width of the mining support beam, and several round bars are evenly arranged on the table surface of the rotating table between the two curved plates. The arrangement direction is along the symmetrical axis direction of the two curved plates, and the round steel on the rotary table and the round steel at the bottom of the mining support beam are arranged crosswise.

Further, the relative rotation between the rotating base and the rotating table is accomplished by pushing and pulling the jack.

Further, the rotating base also includes a bottom plate, a rib plate, an inner sleeve, a cover plate, a limit block and a connecting seat. There are two limit blocks symmetrically arranged on the upper part. The limit blocks have a taper. The two sides of one side limit block are respectively provided with connecting seats. The connecting seats can be connected with the base of the push-pull jack. By changing the push-pull jack and the connecting seats on both sides to change the rotation direction of the turntable.

Further, the rotary table also includes a chassis, an outer sleeve and a connecting lug, an outer sleeve that can be sleeved on the inner sleeve is set at the center of the bottom of the chassis, and a connecting lug is provided on the outer sleeve. The position is located on the vertical line of the symmetrical axis of the two curved plates, and the outer sleeve is also provided with a straight plate. The rotation angle of the straight plate is limited by the limit block. The thrust of the push-pull jack and the resistance of the limit block realize the clamping of the support beam.

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, since the supporting beam is arranged in the roadway, it is necessary to rotate the transported supporting beam in the roadway by a certain angle. , to prevent the support beam from swinging during the handling process, and facilitate the handling of the support beam in the roadway for advanced support. In the roadway support, the truck can be used instead of the workers to carry it, which realizes the mechanized transportation of the beams. Compared with the manual handling of the single column, it reduces the time of moving, reduces the labor intensity, greatly improves the efficiency of roadway excavation, and ensures the safety of personnel. , has the characteristics of flexibility, convenience, time-saving and labor-saving. Specifically:

1. Mine support beam rotary clamping device, compact structure, easy installation, large clamping force, flexible handling, greatly reducing the on-site installation time, and realizing mechanized handling of the beam;

2. The hydraulic system of the truck can be used to improve its power, which has high adaptability to the coal mine underground site, the hydraulic system source connection is convenient and safe, and the operator is far away from the anchoring point area during work, which greatly improves the safety of personnel;

3. There are connection seats on both sides of the rotary base of the rotary clamping device for the mine support beam, and the rotation direction of the rotary clamping device can be changed by changing the connection position of the push jack, which is convenient to operate.

4. The rotary clamping device for mine support beam mainly realizes rotary clamping through push-pull jacks, bearings, inner and outer sleeves and limit blocks, etc. It has a simple structure and flexible operation.

5. A round bar is arranged in the slot of the rotary table of the rotary clamping device for the mine support beam, which is arranged crosswise with the round bar below the beam, which can limit the position of the beam and prevent the beam from moving left and right in the slot.

Description of drawings

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

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the side view of Fig. 1;

Fig. 4 is the front view of the rotating base;

Fig. 5 is the top view of Fig. 4;

Fig. 6 is the side view of Fig. 4;

Fig. 7 is the front view of the rotary table;

Fig. 8 is the top view of Fig. 7;

Fig. 9 is the side view of Fig. 7;

In the picture: 1-rotating base, 2-rotating table, 3-push-pull jack, 4-pin shaft, 5-bearing, 6-bottom plate, 7-rib plate, 8-inner sleeve, 9-cover plate, 10-limit Block, 11-connecting seat, 12-chassis, 13-outer sleeve, 14-bending plate, 15-round steel, 16-connecting ear.

Detailed ways

The specific embodiments of the present invention will be further described with reference to the accompanying drawings.

The mining support beam rotating clamping device is installed on the lifting platform of the tanker, including a rotating base 1, a rotating table 2, a push-pull jack 3, a pin shaft 4 and a bearing 5. The rotating base 1 includes a bottom plate 6 , a rib plate 7 , an inner sleeve 8 , a cover plate 9 , a limit block 10 and a connecting seat 11 . The rotary table 2 mainly includes a chassis 12 , an outer sleeve 13 , a bent plate 14 , a round steel 15 and a connecting ear 16 . The outer sleeve 13 of the rotating table 2 is sleeved on the inner sleeve 9 of the rotating base 1, and the bearing 5 is arranged in the middle. between. The round steel 15 of the rotary table 2 is arranged in the slot between the bent plates on both sides.

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

A bearing 5 is arranged between the inner sleeve 8 of the rotating base 1 and the outer sleeve 13 of the rotating table 2, so as to reduce the frictional force during the rotation.

The rotating base 1 is provided with a limit block 11 , and the support beam is clamped by the thrust of the push-pull jack 3 and the resistance of the limit block 10 .

Bending plates 9 are provided on both sides of the rotary table 2 to form a slot, which can easily support the beam to fall into the slot. At the same time, round steel 15 is supported and arranged on the groove and below the support beam, which can prevent the support beam from moving left and right in the groove.

The invention is mainly used for the roadway of the single-span support beam transporting along the trough in the coal mine. When using, firstly install the rotary clamping device of the mine support beam on the lifting platform of the trough truck, and drive the trough truck to the machine. Below the single-span support device at the tail; then align the slot of the “mining support beam rotary clamping device” of the present invention with the middle of the beam of the support device, and lift the lifting platform until the beam falls into the slot; then, The lifting platform is then rotated by extending the push-pull jack, and the support device is rotated and clamped; finally, the beam is transported to the front end of the roadway along the tanker, and the rotary table is rotated to the initial position by retracting the push-pull jack to raise the lifting platform. When the beam is connected to the top, the whole process is over.

Claims (2)

1. A mine support beam rotary clamping device, characterized in that it is installed on the lifting platform of the mine support beam truck, comprising a rotating base (1) and a rotating table (2), The rotary base (1) and the rotary table (2) are arranged up and down, the rotary table (2) is on the top, the rotary base (1) is on the bottom, and the two can rotate relative to each other for a limited angle, Two curved plates are symmetrically arranged on the rotating table (2) to form a clamping groove, the width of the clamping groove is larger than the width of the mining support beam, and several round bars are evenly arranged on the rotating table between the two curved plates, each of which is The arrangement direction of the round bars is along the symmetrical axis direction of the two bent plates, and the round bars on the rotary table and the round bars at the bottom of the mining support beam are arranged crosswise; The relative rotation between the rotary base (1) and the rotary table (2) is accomplished by pushing and pulling the jack (3); The rotating base (1) includes a bottom plate (6), a rib plate (7), an inner sleeve (8), a cover plate (9), a limit block (10) and a connecting seat (11). (6) and the cover plate (9) are arranged concentrically up and down, and the inner sleeve (8) is arranged in the center. Two limit blocks are symmetrically arranged on the cover plate, the limit blocks have a taper, and the two sides of the limit block on one side are arranged symmetrically. A connecting seat is respectively provided, the connecting seat can be connected with the base of the push-pull jack, and the rotation direction of the rotary table (2) is changed by changing the connecting position of the push-pull jack (3) and the connecting seats on both sides; The rotary table (2) comprises a chassis (12), an outer sleeve (13) and connecting ears (16), and a jacket that can be sleeved on the inner sleeve (8) is provided at the center of the bottom of the chassis (12). The cylinder (13), the outer sleeve is provided with a connecting ear (16), the initial position of the connecting ear is located on the vertical line of the symmetrical axis of the two bent plates, the outer sleeve is also provided with a straight plate, the rotation angle of the straight plate is limited by the limit block , the two straight plates are symmetrically arranged on the connecting ear (16), the connecting ear is connected to the piston rod end of the push-pull jack, and the support beam is clamped by the thrust of the push-pull jack (3) and the resistance of the limit block (10). 2 . The rotary clamping device for mining support beams according to claim 1 , wherein a bearing ( 5 ) is arranged between the inner sleeve ( 8 ) and the outer sleeve ( 13 ). 3 .

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