CN211077483U - Variable-slope belt pressing device for excavation roadway of excavation working face - Google Patents

Abstract

The utility model discloses a tunneling working face tunneling roadway slope-changing belt pressing device, which relates to the field of underground belt conveying of coal mines, and comprises a guide roll fixing frame, wherein the guide roll fixing frame comprises two pairs of supporting legs and beams on the two pairs of supporting legs, the two pairs of supporting legs are respectively arranged on two sides of a belt, the beams are parallel to the edges of the belt, the two beams are connected through a guide roll I and a guide roll II, the radius of the guide roll I is larger than that of the guide roll II, the circle center of the guide roll II is lower than that of the guide roll I and is also lower than the lower surface of the beams simultaneously, two end heads of the axial center of the guide roll I are clamped in a groove opened at the end of the end beam, and two side surfaces; the supporting legs at the lower parts of the left opposite ends of the two cross beams are respectively fixedly connected with a steel plate, the vertical distance between the steel plates and the cross beams is 3-10cm, and the guide roller II is arranged between the two steel plates. The utility model is simple in operation, usability are strong, have alleviated workman intensity of labour, have very big economic benefits simultaneously in addition.

Description

Variable-slope belt pressing device for excavation roadway of excavation working face

Technical Field

The utility model relates to a colliery is belt conveyor field in the pit specifically is a tunnelling becomes slope and presses belt assembly.

Background

The upper belt is stretched when the belt runs at a position with a variable slope (larger gradient) under the influence of geological conditions in the production process, so that the belt floats to a top plate, coal and gangue are scattered at the position, a specially-assigned person needs to be left at the position to clean the scattered coal and gangue in each shift, the belt is easy to damage, and the belt is difficult to maintain. Therefore, in order to solve the problem that the belt is easily straightened at a slope change so as to float to the top plate and coal gangue is scattered, a device needs to be provided.

Disclosure of Invention

The utility model discloses a solve the variable slope department belt and be straightened easily to on wafting to the roof, the unrestrained problem of coal gangue provides a tunnelling tunnel variable slope belt pressing device of tunnelling working face.

The utility model discloses a realize through following technical scheme: a variable-slope belt pressing device for a tunneling roadway of a tunneling working face comprises a guide roller fixing frame, wherein the guide roller fixing frame comprises two pairs of supporting legs, the two pairs of supporting legs are respectively arranged on two sides of a belt, the upper part of each pair of supporting legs is fixedly connected with a cross beam, the cross beams are parallel to the sides of the belt, the two cross beams on the two sides of the belt are connected through a guide roller I and a guide roller II, the radius of the guide roller I is larger than that of the guide roller II, the circle center of the guide roller II is lower than that of the guide roller I and lower surfaces of the cross beams, mirror symmetry grooves are formed in opposite ends of the right sides of the two cross beams, two ends of the axial center of the guide roller I are clamped in the grooves, locking plates for clamping the two ends of the guide roller I are further mounted on two side faces of the grooves through bolts; the supporting legs at the lower parts of the left opposite ends of the two cross beams are fixedly connected with a steel plate respectively, the vertical distance between the steel plate and the cross beams is 3-10cm, the guide roller II is installed between the two steel plates, and two axial center ends of the guide roller II are installed at the center positions of the steel plates.

The utility model aims to solve the problem that the belt at the slope is easy to be straightened and coal and gangue are scattered, thereby inventing the slope-changing belt pressing device of the driving face driving tunnel, playing the roles of reversing the belt and pressing the belt, the device is fixed on the ground at the position of a variable slope, the belt pressing device comprises a guide roller fixing frame, the guide roller fixing frame is composed of two pairs of supporting legs and cross beams, the two pairs of supporting legs are respectively arranged on two sides of a belt, each pair of supporting legs is fixedly connected with a cross beam, the cross beams are parallel to the side of the belt, the guide rollers are totally two, a guide roller I is fixed at one end of the right side of the cross beam, a guide roller II is positioned at the left end of the cross beam, the cross beams are connected into a whole through the two guide rollers, in order to realize reversing, the radius of the guide roller I is larger, the circle center of the guide roller II is lower than that of the guide roller I, and meanwhile, the circle center of the guide roller II is also arranged on the lower surface of the cross beam; mirror symmetry grooves are formed in the right opposite ends of the two cross beams, two end heads of the axial center of the guide roller I are clamped in the grooves, locking plates for clamping the two end heads of the guide roller I are mounted on the two side surfaces of the grooves through bolts, jackscrews are further arranged on the side surfaces of the two end heads of the guide roller I, the front and back positions of the guide roller can be adjusted through adjusting the jackscrews so as to adjust the belt deviation phenomenon, and the guide roller fixing function can be achieved; and the supporting legs at the lower part of the opposite ends on the left sides of the two cross beams are fixedly connected with a steel plate respectively, the steel plate is closer to the cross beams, the guide roller II is arranged between the two steel plates, and two axial center ends of the guide roller II are arranged at the central position of the steel plate, so that the belt is reversed from the guide roller I and then reversed to the guide roller II, the amplitude change is not too large, the belt returns to the original position after slope change, the requirement of reversing and pressing the belt is met, and the problems that the belt at the slope change is easy to straighten, the belt is easy to float and coal and gangue are scattered due to the belt are solved through repeated reversing. The utility model discloses the specific operation does: the installation direction of position at the change slope is rolled the mount, two pairs of supporting legs are located the belt both sides respectively, crossbeam on it is on a parallel with the belt limit, the relative end department in the both sides of crossbeam, the left side sets up the direction and rolls II, the right side sets up the direction and rolls I, install the steel sheet center of supporting leg upper end with the axial end that the direction was rolled II, it installs I at the inslot that the end was opened on the crossbeam right side to roll the direction, and roll I fixed and adjustment position with the direction through locking plate and jackscrew, then make the belt roll I switching-over to direction roll II from the direction, then get back to the position behind the change slope of original needs again.

Compared with the prior art the utility model discloses following beneficial effect has: the slope-changing belt pressing device for the tunneling roadway of the tunneling working face, provided by the utility model, has the advantages of simple operation and strong usability, and has particularly important significance for the problems that the slope change is large when the tunneling is uphill in the coal mine production tunneling process, the belt is difficult to maintain, the transportation is difficult, and the like; before the slope-changing belt pressing device is not used, a specially-assigned person is required to clean scattered coal gangue in each class, a maintenance class assigns the specially-assigned person to maintain the upper support of the position which is blown off by the belt, and the labor intensity of workers is relieved after the belt pressing device is used; by using the device, the difficulty that the belt is easy to spill coal and gangue when the belt is opened at the position of the variable slope point is solved, and the accident that personnel are hurt by the spilled coal and gangue when the personnel pass through the variable slope is avoided; in the economic benefit, the labor cost can be saved by 15 ten thousand yuan, which shows that the slope-changing belt pressing device is used in the tunneling process, and the economic benefit is very outstanding.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of the position a of the present invention.

The figures are labeled as follows: 1-beam, 2-supporting leg, 3-guide roller II, 4-guide roller I, 5-belt, 6-reinforcing rib, 7-jackscrew, 8-locking plate, 9-groove and 10-steel plate.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

A variable-slope belt pressing device for a heading roadway of a heading face is shown in figures 1 and 2: the guide roller fixing frame comprises two pairs of supporting legs 2, the two pairs of supporting legs 2 are respectively arranged on two sides of a belt 5, a cross beam 1 is fixedly connected to the upper portion of each pair of supporting legs 2, the cross beam 1 is parallel to the side of the belt, the two cross beams 1 on the two sides of the belt 5 are connected through a guide roller I4 and a guide roller II 3, the radius of the guide roller I4 is larger than that of the guide roller II 3, the circle center of the guide roller II 3 is lower than that of the guide roller I4 and lower surface of the cross beam 1, mirror symmetry grooves 9 are formed in opposite ends of the right sides of the two cross beams 1, two ends of the axial center of the guide roller I4 are clamped in the grooves 9, locking plates 8 for clamping two ends of the guide roller I4 are further mounted on two side faces of the grooves 9 through bolts, and jackscrews 7 are further arranged on two end side faces of the; the steel plates 10 are fixedly connected to the supporting legs 2 at the lower parts of the left opposite ends of the two cross beams 1 respectively, the vertical distance between each steel plate 10 and each cross beam is 3-10cm, the guide rollers II 3 are installed between the two steel plates 10, and two axial center ends of each guide roller II 3 are installed at the center of each steel plate 10.

The preferred scheme is adopted in the embodiment, the reinforcing ribs 6 are welded between the supporting legs 2 and the ground and between the cross beam 1 and the supporting legs 2, so that the strength of the whole guide roller fixing frame is ensured, and the guide roller fixing frame can be stable on the ground.

The embodiment specifically operates as follows: the installation of position at the change slope is led and is rolled the mount, two pairs of supporting legs 2 are located 5 both sides of belt respectively, crossbeam 1 on it is on a parallel with the belt limit, the relative end department in crossbeam 1's both sides, the left side sets up the direction and rolls II 3, the right side sets up direction and rolls I4, install the center at the steel sheet 10 of supporting leg 2 upper end with the axial end of direction roll II 3, roll I4 with the direction and install in the groove 9 that 1 right side end of crossbeam was opened, and through locking plate 8 and jackscrew 7 with direction roll I4 fixed and adjustment position, then make belt 5 roll I switching-over to direction roll II from the direction, then get back to the position behind the change slope of original needs again.

The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (2)

1. The utility model provides a tunnelling tunnel becomes slope and presses belt assembly which characterized in that: including the direction roll mount, the direction roll mount includes two pairs of supporting legs (2), and two pairs of supporting legs (2) set up respectively in the both sides of belt (5), every to a crossbeam (1) of supporting leg (2) upper portion fixedly connected with, crossbeam (1) is parallel with the belt limit, rolls I (4) and direction through the direction between two crossbeams (1) of belt (5) both sides and rolls II (3) and connect, the radius of direction roll I (4) is greater than the radius of direction roll II (3), the centre of a circle of direction roll II (3) is less than the centre of a circle of direction roll I (4), also is less than the lower surface of crossbeam (1) simultaneously, and two crossbeams (1) right side relative one end is opened has mirror symmetry's groove (9), the both ends head card of direction roll I (4) axial direction center is in groove (9), still block through the bolt on the both sides face of groove (9) and install locking plate (8) of direction roll I (4) both ends head, the lateral surfaces of two ends of the guide roller I (4) are also provided with jackscrews (7); steel plate (10) of each fixedly connected with on supporting leg (2) of the relative one end lower part in two crossbeams (1) left sides, steel plate (10) are 3~10cm apart from the perpendicular distance of crossbeam, the direction is rolled II (3) and is installed between two steel plate (10), two axial center ends that the direction was rolled II (3) are settled and are put at the central point of steel plate (10).

2. The slope-changing belt pressing device for the heading tunnel of the heading face as claimed in claim 1, wherein: reinforcing ribs (6) are welded between the supporting legs (2) and the ground and between the cross beam (1) and the supporting legs (2).

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