CN212716690U

CN212716690U - Forepoling bar for mine excavation

Info

Publication number: CN212716690U
Application number: CN202021614737.XU
Authority: CN
Inventors: 李和春; 邸伟霞; 冯成; 李俊; 石本超; 崔磊; 孟凡宇; 程功; 刘丽
Original assignee: Sinohydro Bureau 1 Co Ltd
Current assignee: Sinohydro Bureau 1 Co Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-03-16
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a forestope is used in mine tunnelling, including the forestope main part, be equipped with the main tributary supporting beam in the forestope main part, and forestope main part one side installs flexible visiting roof beam, forestope main part upper end is equipped with the sunshade, and the sunshade is the V type structure of invering, sunshade both sides upper end all is connected with the fixture block, and fixture block upper end block has the location installation piece, and is adjacent evenly be connected with a supporting beam dead lever between the main tributary supporting beam, and the main tributary supporting beam lower extreme evenly is equipped with the fixed strip to main tributary supporting beam lower extreme still evenly is equipped with the second bracing piece, location installation piece lower extreme is connected with first bracing piece, and first bracing piece and second bracing piece lower extreme all are connected with the backup pad. This forestope for mine tunnelling can be convenient block the rubble that produces when tunnelling the mine through the sunshade, avoid the rubble to drop from the mine upper end and cause the potential safety hazard, and the use of forestope of being convenient for is fixed in dismantling that the forestope can be convenient simultaneously.

Description

Forepoling bar for mine excavation

Technical Field

The utility model relates to a mine tunnelling technical field specifically is a forestope is used in mine tunnelling.

Background

A mine refers to an independent production and operation unit for mining ores in a certain mining boundary. The mine mainly comprises one or more mining workshops (or pittings, mines, open stopes and the like) and auxiliary workshops, and most mines also comprise a beneficiation plant (coal washing plant). During mine tunneling, a drift, a slope and the like are drilled by a 281 hydraulic drill jumbo, drilling and blasting construction is implemented, then slag is discharged by a slag removing machine mounted dump truck, and the parts of the 281 hydraulic drill jumbo which are inconvenient to construct are drilled by a manual handheld YT-28 hand pneumatic drill.

When an existing mine is tunneled, a forepoling beam needs to be installed for temporary support, a tunneling device and mine tunnel personnel are protected, however, broken stones are generated during mine tunneling, the forepoling beam cannot effectively block the broken stones, and meanwhile, the forepoling beam cannot be conveniently detached and fixed when moving.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a forestope is used in mine tunnelling to solve the rubble that produces when the mine tunnelling can not be tunnelled to the mine on the existing market that the above-mentioned background art provided and carry out effectual separation, the forestope is when removing, can not be convenient dismantle fixed problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a forestope for mine tunnelling, includes the forestope main part, be equipped with the main tributary roof beam in the forestope main part, and forestope main part one side installs flexible canopy, forestope main part upper end is equipped with the sunshade, and the V type structure of sunshade for invering, sunshade both sides upper end all is connected with the fixture block, and fixture block upper end block has location installation piece, and is adjacent evenly be connected with a supporting beam dead lever between the main tributary roof beam, and main tributary roof beam lower extreme evenly is equipped with the fixed strip to main tributary roof beam lower extreme still evenly is equipped with the second bracing piece, location installation piece lower extreme is connected with first bracing piece, and first bracing piece and second bracing piece lower extreme all are connected with the backup pad.

Preferably, the position of the second supporting rod corresponds to the position of the fixing strip, and a connecting rod is fixedly connected between one side of the second supporting rod and the lower end of the side face of the fixing strip through a bolt.

Preferably, the length of the shielding plate is equal to that of the main support beam, and two sides of the shielding plate are fixedly connected with the main support beam through bolts.

Preferably, the round through holes corresponding to the fixing rods of the support beams in position are uniformly formed in the upper end of the shielding plate, the limiting rods penetrate through the round through holes of the shielding plate, the buffering springs are sleeved on the limiting rods, and the lower ends of the limiting rods are fixedly connected with the fixing rods of the support beams through bolts.

Preferably, both ends of the fixing strip are inclined downwards, first circular through holes are uniformly formed in the side face of the fixing strip, reinforcing rods penetrate through the first circular through holes of the fixing strip, and the fixing strip is fixedly connected with the reinforcing rods in a welding mode.

Preferably, the upper end of the fixing strip is provided with a symmetrical through hole with a shape matched with the shape of the section of the second supporting rod, and the fixing strip is fixedly connected with the second supporting rod through welding.

Compared with the prior art, the beneficial effects of the utility model are that: this forestope for mine tunnelling can be convenient block the rubble that produces when tunnelling the mine through the sunshade, avoid the rubble to drop from the mine upper end and cause the potential safety hazard, and the use of forestope of being convenient for is fixed in dismantling that the forestope can be convenient simultaneously. This forepoling beam for mine tunnelling is when using, and the rubble falls back on the sunshade, can cushion through the effect of buffer spring and gag lever post, effectually protects the sunshade, and the main tributary supporting beam of forepoling beam can carry out firm fixed through fixed strip and a supporting beam dead lever, guarantees the steadiness of forepoling beam, makes mine tunnelling safe and reliable more.

Drawings

Fig. 1 is a schematic structural view of a front canopy for mine excavation according to the present invention;

fig. 2 is a schematic view of a connecting structure of a main supporting beam and a fixing strip of a front cantilever for mine excavation according to the present invention;

fig. 3 is a schematic view of a connecting structure between a main supporting beam and a second supporting rod of a forepoling bar for mine excavation according to the present invention;

fig. 4 is a schematic view of a three-dimensional structure of the connection between the fixture block and the shield plate of the forestope for mine excavation according to the present invention;

fig. 5 is the utility model discloses a fixing strip spatial structure sketch map of forestope for mine tunnelling.

In the figure: 1. forepoling beam main part, 2, main tributary supporting beam, 3, connecting rod, 4, first bracing piece, 5, second bracing piece, 6, sunshade, 7, gag lever post, 8, buffer spring, 9, anchor strut, 10, fixture block, 11, location installation piece, 12, fixed strip, 13, a supporting beam dead lever, 14, backup pad, 15, flexible probe beam.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a forepoling bar for mine excavation comprises a forepoling bar main body 1, a main supporting beam 2 is arranged on the forepoling bar main body 1, a telescopic canopy 15 is arranged on one side of the forepoling bar main body 1, the telescopic canopy 15 is a telescopic forepoling bar structure on the existing forepoling bar for mine excavation and can be fixed in a telescopic mode and used for prolonging the length of the forepoling bar main body 1, a shielding plate 6 is arranged at the upper end of the forepoling bar main body 1, the shielding plate 6 is of an inverted V-shaped structure, clamping blocks 10 are connected to the upper ends of two sides of the shielding plate 6, a positioning mounting block 11 is clamped at the upper end of each clamping block 10, the upper end of each positioning mounting block 11 can be fixed with a mine tunnel top through expansion screws, the forepoling bar main body 1 can be conveniently positioned, when the forepoling bar main body 1 needs to move, the clamping blocks 10 at the upper end of the shielding plate 6 can move through the positioning mounting blocks 11, then the other, the length of the shield plate 6 is equal to that of the main supporting beam 2, and two sides of the shield plate 6 are fixedly connected with the main supporting beam 2 through bolts, the shield plate 6 is fixed at the upper end of the supporting beam fixing rod 13, so that the shield plate 6 can play a shielding role on the front canopy body 1, so that broken stones generated during mine excavation can slide down through two sides of the inverted V-shaped structure of the shield plate 6, thereby avoiding potential safety hazards caused by the broken stones to mine excavation, the main supporting beam 2 is uniformly connected with the supporting beam fixing rod 13, the upper end of the shield plate 6 is uniformly provided with circular through holes corresponding to the positions of the supporting beam fixing rod 13, a limiting rod 7 penetrates through the circular through holes of the shield plate 6, the limiting rod 7 is sleeved with a buffer spring 8, the lower end of the limiting rod 7 is fixedly connected with the supporting beam fixing rod 13 through bolts, and the structure enables the limiting rod 7 to be movably connected with the, after the gravels fall on the shielding plate 6, the shielding plate 6 can be buffered by downwards extruding the buffer spring 8 through the limit of the limit rod 7, the shielding plate 6 is prevented from being damaged, the lower end of the main support beam 2 is uniformly provided with the fixing strip 12, the two ends of the fixing strip 12 are downwards inclined, the side surface of the fixing strip 12 is uniformly provided with a first circular through hole, the first circular through hole of the fixing strip 12 is internally penetrated with the reinforcing rod 9, the fixing strip 12 is fixedly connected with the reinforcing rod 9 through welding, the downwards inclination of the two ends of the fixing strip 12 can enable the fixing strip 12 to adapt to the inverted V-shaped structure of the shielding plate 6, so that the fixing strip 12 is prevented from blocking the fixing of the shielding plate 6, the reinforcing rod 9 can effectively reinforce the fixing strip 12, the fixing strip 12 can stably support the main support beam 2, the upper end of the fixing strip 12 is provided with a symmetrical through hole with the shape matched with the section shape of, the fixing strips 12 and the second supporting rods 5 are fixedly connected by welding, the structure enables the second supporting rods 5 to penetrate through the fixing strips 12 and then to be fixed with the main supporting beam 2, the stability of connection among the main supporting beam 2, the second supporting rods 5 and the fixing strips 12 is ensured, the stability of the main supporting beam 2 is improved, the safe and reliable use of the forepoling beam main body 1 is facilitated, the second supporting rods 5 are uniformly arranged at the lower end of the main supporting beam 2, the positions of the second supporting rods 5 correspond to the positions of the fixing strips 12, the connecting rods 3 are fixedly connected with one sides of the second supporting rods 5 and the lower ends of the side surfaces of the fixing strips 12 through bolts, the connecting rods 3 can form a triangular structure with the fixing strips 12 and the second supporting rods 5, the fixing strips 12 can be stably connected with the second supporting rods 5, and the main supporting beam 2 can be stably fixed with the second supporting rods 5 and the fixing strips 12, the steadiness of main tributary supporting beam 2 has been guaranteed, and 11 lower extremes of location installation piece are connected with first bracing piece 4, and first bracing piece 4 and 5 lower extremes of second bracing piece all are connected with backup pad 14, and backup pad 14 plays the effect of supporting fixed second bracing piece 5 and first bracing piece 4, makes second bracing piece 5 and 4 lower extremes of first bracing piece more firm, the fixing of the forestope main part 1 of being convenient for.

The working principle is as follows: when the forepoling bar for mine excavation is used, firstly, when the forepoling bar main body 1 is fixed, the positioning and mounting blocks 11 are fixed on two sides of the top of a mine cave through expansion screws, the first supporting rod 4 plays a supporting role for the positioning and mounting blocks 11, then the telescopic probe beam 15 is telescopically moved to fix the telescopic probe beam 15, then the forepoling bar main body 1 is fixed at the lower end of the positioning and mounting blocks 11 through the clamping of the clamping blocks 10 and the positioning and mounting blocks 11, when the mine excavation is carried out, the supporting beam fixing rod 13 between the main supporting beams 2 and the second supporting rod 5 play a stable supporting role for the forepoling bar main body 1, the supporting plate 14 plays a supporting and reinforcing role for the second supporting rod 5 and the first supporting rod 4, the fixing strip 12 and the reinforcing rod 9 play a reinforcing role for the main supporting beam 2, and the connecting rod 3 improves the stability of the fixing strip 12 connected with the main supporting beam 2, when the rubble is produced during mine excavation, the rubble can drop to sunshade 6, then from the landing of 6 both ends of sunshade, avoid the rubble directly to drop and cause the potential safety hazard, when the rubble drops to sunshade 6, sunshade 6 can be through spacing extrusion buffer spring 8 downwards of gag lever post 7, reduce the damage that the rubble led caused to sunshade 6, when needing to move forepoling main part 1, promote forepoling main part 1, make forepoling main part 1 remove through fixture block 10 and location installation piece 11's cooperation relative positioning installation piece 11, then dismantle one of them location installation piece 11, and fix a position installation piece 11 at the forepoling main part 1 other end, make the dismantlement that forepoling main part 1 can be convenient fixed, thereby accomplish a series of work.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a mine tunnelling is with forestope, includes forestope main part (1), be equipped with main tributary girder (2) on forestope main part (1), and flexible canopy (15), its characterized in that are installed to forestope main part (1) one side: forestope main part (1) upper end is equipped with sunshade (6), and sunshade (6) is the V type structure of invering, sunshade (6) both sides upper end all is connected with fixture block (10), and fixture block (10) upper end block has location installation piece (11), and is adjacent evenly be connected with a supporting beam dead lever (13) between main tributary supporting beam (2), and main tributary supporting beam (2) lower extreme evenly is equipped with fixed strip (12) to main tributary supporting beam (2) lower extreme still evenly is equipped with second bracing piece (5), location installation piece (11) lower extreme is connected with first bracing piece (4), and first bracing piece (4) and second bracing piece (5) lower extreme all are connected with backup pad (14).

2. The forepoling bar for mine excavation according to claim 1, characterized in that: the position of the second supporting rod (5) corresponds to the position of the fixing strip (12), and one side of the second supporting rod (5) is fixedly connected with the lower end of the side face of the fixing strip (12) through a bolt to form a connecting rod (3).

3. The forepoling bar for mine excavation according to claim 1, characterized in that: the length of the shielding plate (6) is equal to that of the main supporting beam (2), and the two sides of the shielding plate (6) are fixedly connected with the main supporting beam (2) through bolts.

4. The forepoling bar for mine excavation according to claim 1, characterized in that: round through holes corresponding to the positions of the support beam fixing rods (13) are evenly formed in the upper end of the shielding plate (6), the limiting rods (7) penetrate through the round through holes of the shielding plate (6), the limiting rods (7) are sleeved with buffer springs (8), and the lower ends of the limiting rods (7) are fixedly connected with the support beam fixing rods (13) through bolts.

5. The forepoling bar for mine excavation according to claim 1, characterized in that: fixed strip (12) both ends downward sloping, and fixed strip (12) side has evenly seted up first circular through-hole, it has reinforcing rod (9) to run through in the first circular through-hole of fixed strip (12), and fixed strip (12) and reinforcing rod (9) are through welded fastening connection.

6. The forepoling bar for mine excavation according to claim 1, characterized in that: the upper end of the fixing strip (12) is provided with a symmetrical through hole with the shape matched with the section shape of the second supporting rod (5), and the fixing strip (12) is fixedly connected with the second supporting rod (5) through welding.