CN218971227U

CN218971227U - Anchor net installation auxiliary supporting device for underground mine mining

Info

Publication number: CN218971227U
Application number: CN202320463212.8U
Authority: CN
Inventors: 王永茂; 孙德山; 刘勇; 马龙; 孟天祥; 张如松; 彭伟; 王洪星
Original assignee: SHANDONG GOLD GUILAIZHUANG MINING CO Ltd
Current assignee: SHANDONG GOLD GUILAIZHUANG MINING CO Ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-05-05
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses an anchor net installation auxiliary supporting device for underground mine excavation, which comprises a base, a fixed supporting rod, a first lifting supporting rod, a second lifting supporting rod and an anchor net lifting platform, wherein a first gear capable of being rocked is arranged on the side part of the top end of the fixed supporting rod and meshed with a rack of the first lifting supporting rod so as to drive the first lifting supporting rod, a second gear is arranged on the side part of the top end of the first lifting supporting rod, one end of a chain is fixed on the fixed supporting rod, the other end of the chain is fixed at the bottom inside the second lifting supporting rod after passing through the second gear so as to drive the second lifting supporting rod, when the first gear is rocked, the first gear drives the rack to move relatively so as to drive the first lifting supporting rod to slide, and meanwhile, the chain drives the second lifting supporting rod to slide in the same direction so as to quickly lift or lower the anchor net lifting platform. Through the mode, the utility model has the advantages of effectively reducing the labor intensity of workers, improving the labor efficiency and reducing the safety risk in support.

Description

Anchor net installation auxiliary supporting device for underground mine mining

Technical Field

The utility model relates to the field of underground mine mining support, in particular to an anchor net installation auxiliary support device for underground mine mining.

Background

In the process of mining underground mine, the mined roadway is supported in time to prevent safety accidents caused by collapse, falling rocks and the like. The common support adopts the anchor net to anchor to the top and the side wall of the roadway, so that a plurality of anchor nets are connected into a whole, and the protection effect is achieved on the whole roadway.

The existing anchor net supporting and fixing measures generally adopt manual lifting of the anchor net to a certain height, an anchor rod penetrates through the center of the anchor net, an anchor rod propeller is installed by using an air leg type rock drill, and then the anchor rod is injected into an anchor rod hole constructed in advance, so that the anchor net is compacted and fixed on a roadway top plate. In the process, the auxiliary personnel need to lift the anchor net all the time, so that the body of the personnel is tired easily, and the anchor net also has the risk of falling to hurt the personnel.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model aims to provide the auxiliary supporting device for the anchor net installation of the underground mine mining, so as to solve the problems of high labor intensity of operation and work, low work efficiency and easy falling of the anchor net and injury of people.

In order to solve the technical problems, the technical scheme adopted by the utility model is that the auxiliary supporting device for installing the anchor net for underground mine mining comprises a base, a fixed supporting rod arranged on the base, a first lifting supporting rod sleeved in the fixed supporting rod in a sliding way, a second lifting supporting rod sleeved in the first lifting supporting rod in a sliding way, and an anchor net lifting platform horizontally arranged at the top end of the second lifting supporting rod, wherein a first gear capable of shaking is arranged at the side part of the top end of the fixed supporting rod, a rack is arranged at the axial position on the first lifting supporting rod corresponding to the first gear, and the first gear is meshed with the rack; a second gear is arranged on the side part of the top end of the first lifting support rod, one end of a chain is fixedly arranged on the fixed support rod, and the other end of the chain is fixed on the lower side part of the inside of the second lifting support rod after passing through the second gear; when the first gear is rocked, the first gear drives the rack to move relatively so as to drive the first lifting support rod to slide relatively to the fixed support rod, meanwhile, the second gear moves along with the first lifting support rod, and the driving chain drives the second lifting support rod to slide relatively to the first lifting support rod in the same direction, so that the anchor net lifting platform is lifted or lowered rapidly.

When the auxiliary supporting device for the anchor net is used for installing, the base of the auxiliary supporting device is opened and placed on the ground, at the moment, the anchor net lifting platform is lower from the ground, a worker can conveniently place the anchor net to be installed on the anchor net lifting platform, then hand-crank the first gear to lift the anchor net and prop the anchor net against the roadway wall, and then the worker fixes the anchor net by using the anchor rod. Sometimes the roadway is higher, and if the anchor net is lifted only through the gear and rack device, the time is long, and the working efficiency is influenced. According to the technical scheme, two sections of lifting rods are arranged, when the gear drives the rack to move, the second gear moves along with the first lifting support rod, the driving chain simultaneously acts on the other second lifting support rod, so that the two lifting rods are lifted or lowered simultaneously, the speed of lifting or withdrawing the anchor net from the anchor net lifting platform is doubled, and the working efficiency is greatly improved.

As an improvement, a locking device is arranged on the first gear, when the first gear is rocked to lift the anchor net lifting platform, the first gear can be prevented from being reversed, and when the locking device is unlocked, the anchor net lifting platform can be lowered. When the first gear is rotated by hand to lift the device, if the hand is loosened, under the pressure of the self weight of the anchor net and the device, the two lifting rods can automatically descend, so that normal work cannot be guaranteed and a certain safety risk exists.

As another improvement, the anchor net lifting platform comprises a longitudinal girder and two transverse support arms, the middle of each transverse support arm is sleeved on the longitudinal girder and can axially move along the longitudinal girder, locking bolts are further arranged on the transverse support arms and used for fixing the transverse support arms on the longitudinal girder, and anchor net fixing columns are further arranged on the upper parts of the transverse support arms. According to the size of the anchor net, the distance between the two transverse support arms is adjusted left and right, so that the anchor net can be supported and lifted more conveniently and effectively. A screw hole is formed below the transverse support arm, and a bolt passes through the screw hole and can prop against the lower part of the longitudinal girder, so that the transverse support arm is fixed when being adjusted to a proper position.

As a further improvement of the structure, a hinge seat is arranged on one side of the top end of the second lifting supporting rod, the anchor net lifting platform is hinged with the second lifting supporting rod through the hinge seat, and the anchor net lifting platform can vertically rotate relative to the second lifting supporting rod. When the anchor net lifting platform is in a horizontal state, workers need to lift the anchor net horizontally to the anchor net lifting platform, and the anchor net lifting platform is laborious and low in efficiency. In order to facilitate the placement of the anchor net on the anchor net lifting platform, the anchor net lifting platform is connected with the second lifting support rod through the hinge, so that the anchor net lifting platform can vertically rotate, the upper plane of the anchor net lifting platform is in a state perpendicular to the ground, at the moment, workers can hang the anchor net on the anchor net lifting platform from the side, then rotate the anchor net lifting platform to restore the anchor net to a horizontal state, thereby easily placing the anchor net on the anchor net lifting platform, and then shake the first gear to lift the anchor net lifting platform.

As a further improvement of the structure, a rotating handle is arranged on one side of the hinge shaft at the middle position of the longitudinal girder and is used for manually rotating the anchor net lifting platform. A handle is arranged, so that the anchor net lifting platform is mainly convenient to rotate.

Further, the base comprises 3 or 4 landing legs, each landing leg is hinged with the fixed supporting rod through a mounting seat, and a landing leg adjusting device is further arranged on the mounting seat. The structure can conveniently retract the supporting legs, and is convenient to store when not in use or transportation. The landing leg adjusting device is characterized in that a plurality of positioning notches are formed in the edge of the installation seat in the landing leg direction in a fan-shaped mode, through holes are formed in positions, corresponding to the positioning notches, of the upper section, and bolts or shaft pins are inserted into the through holes of the upper section through the positioning notches. The support legs are adjusted to different positioning gaps, bolts or shaft pins are used for being inserted into the through holes, the support legs are fixed relative to the mounting seat, the support legs and the fixing support rods keep a relatively fixed angle, and the opening amplitude of the support legs is used for adjusting the opening amplitude of the support legs so as to adapt to different ground conditions or adjust the stability of the whole device.

Still further, the landing leg includes the upper segment portion and the lower segment portion of cover locating upper segment portion with the mount pad articulated, and lower segment portion can follow upper segment portion axial displacement, still is equipped with the lock bolt on the upper segment portion for carry out locking connection with lower segment portion and upper segment portion. Because the ground is often uneven, the length of the lower section can be adjusted to ensure that the lengths of the supporting legs are different so as to adapt to different grounds and achieve more stable support.

In conclusion, compared with the existing support mounting mode, the utility model has the advantages of effectively reducing the labor intensity of workers, improving the labor efficiency and reducing the safety risk in support.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a partial cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the anchor net lifting platform of the present utility model;

fig. 4 is a schematic structural view of the leg of the present utility model.

Detailed Description

The following description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings, so as to further understand the concept of the present utility model, the technical problems to be solved, the technical features constituting the technical solutions, and the technical effects to be brought about. However, the description of these embodiments is illustrative, and does not constitute a specific limitation on the present utility model.

As shown in fig. 1 and 2, the auxiliary supporting device for installing an anchor net for underground mine mining provided in this embodiment has a tripod-shaped base 1 at the lowest part, a hollow fixing support rod 2 at the lowest part, a first lifting support rod 3 also hollow and installed inside the fixing support rod 2 and capable of sliding up and down, a second lifting support rod 4 installed inside the first lifting support rod 3 and capable of sliding up and down relative to the first lifting support rod 3, and an anchor net lifting platform 5 horizontally installed at the top end of the second lifting support rod 4. A notch is formed in the side part of the top end of the fixed supporting rod 2, a supporting seat is arranged at the notch position, a first gear 21 is installed on the supporting seat, a hand crank is installed on the first gear 21 and used for shaking the first gear, a rack 31 is arranged on the outer side wall of the first lifting supporting rod 3, a part of wheel body is stretched into the inner side of the fixed supporting rod through the notch by the first gear 21, meshed with the rack 31 and driven to move relatively along with the rotation of the gear 21, and therefore the first lifting supporting rod 3 is lifted or lowered. The side part of the top end of the first lifting supporting rod 3 is also provided with a supporting seat, a second gear 32 is arranged on the supporting seat, the second lifting supporting rod 4 is of a C-shaped structure, an opening of the second lifting supporting rod faces one side of the second gear 32, a part of wheel body of the second gear 32 also stretches into the opening of the second lifting supporting rod 4, one end of a chain 23 is fixedly arranged on the supporting seat at the upper end of the fixed supporting rod 2, and the chain is fixedly arranged at a position, located at the lower side part, inside the second lifting supporting rod 4 after bypassing the second gear 32. When the first gear 21 is rocked, the first gear 21 drives the rack 31 to move relatively so as to drive the first lifting support rod 3 to slide relative to the fixed support rod 2, meanwhile, the second gear 32 moves along with the first lifting support rod 3, and the driving chain 23 drives the second lifting support rod 4 to slide in the same direction relative to the first lifting support rod 3, so that the anchor net lifting platform 5 is lifted or lowered at a relatively high speed.

The first gear 21 is provided with a locking device 22 similar to a ratchet, and when the first gear 21 is rocked to lift the anchor net lifting platform 5, the rotation of the first gear 21 is not affected, so that the anchor net can be lifted smoothly. However, when the first gear 21 tends to be inverted, the front end blocking portion of the locking device 22 will block the teeth of the teeth, preventing the first gear 21 from being inverted, so as to prevent the anchor net from being lowered. The first gear 21 is prevented from reversing and the anchor net lifting platform 5 can be lowered after unlocking the locking means 22. When the anchor net lifting platform needs to be lowered, the lower end wrench of the locking device 22 is pulled by hand, the blocking part at the upper end is separated from the gear teeth, the first gear can be reversed, and the anchor net lifting platform is lowered 5.

As shown in fig. 3, the anchor net lifting platform 5 includes a longitudinal girder 51 and two transverse support arms 52, the middle of the transverse support arms 52 is sleeved on the longitudinal girder 51, and can move along the axial direction of the longitudinal girder 51, a screw hole is formed in the bottom surface of the transverse support arms 52, a locking bolt 54 passes through the screw hole and can be propped against the bottom surface of the longitudinal girder 51, and when the locking bolt 54 is screwed, the transverse support arms 52 can be fixed on the longitudinal girder 51, so that the transverse support arms 52 and the longitudinal girder 51 are relatively fixed. The upper part of the transverse support arms 52 is also provided with anchor net fixing columns 53, and each transverse support arm 52 is provided with at least two anchor net fixing columns 53, and if the transverse support arms 52 are longer, a plurality of anchor net fixing columns can be arranged. The anchor net fixing posts 53 are used for fixing the anchor net, and when the anchor net is placed on the anchor net lifting platform, the anchor net fixing posts 53 are positioned in a mesh, so that the anchor net can be effectively prevented from sliding or even falling off. In order to facilitate the lifting of the anchor net onto the anchor net lifting platform 5, the anchor net lifting platform 5 is movably connected with the second lifting support rod 4, that is, a hinge seat 55 is arranged on one side of the top end of the second lifting support rod 4, the anchor net lifting platform 5 is connected onto the hinge seat 55 through a hinge plate, and when the anchor net lifting platform is in a horizontal state, the hinge plate is horizontally pressed on the plane of the top end of the second lifting support rod 4, and is supported by the second lifting support rod to be stable. When the anchor net lifting platform 5 is rotated, the anchor net lifting platform can be vertically rotated until one side of the second lifting support rod 4 is vertical to the ground, at this time, the anchor net can be vertically hung on the anchor net lifting platform, the anchor net is hung by the anchor net fixing columns 53 and is not dropped, the anchor net lifting platform 5 is rotated again to be restored to the horizontal state, and therefore the anchor net is placed on the anchor net lifting platform 5. The operation is more convenient and labor-saving, the anchor net is placed on the anchor net lifting platform 5, and the labor intensity of workers is reduced. In order to facilitate rotation of the anchor net lifting platform 5, a rotation handle 56 is provided on one side of the hinge seat 55 at the middle position of the longitudinal main beam 51, for manually rotating the anchor net lifting platform 5.

The base 1 is composed of 3 supporting legs, each supporting leg is hinged with the fixed supporting rod 2 through a mounting seat 11, and a supporting leg adjusting device is further arranged on the mounting seat 11. The supporting leg adjusting device is characterized in that a plurality of positioning notches 14 are formed in the edges of the supporting leg direction of the mounting seat in a fan-shaped mode, through holes are formed in positions, corresponding to the positioning notches 14, of the upper section 12, and bolts or shaft pins 15 are inserted into the through holes of the upper section 12 through the positioning notches 14. The support legs are adjusted to different positioning gaps 14, bolts or shaft pins 15 are used for being inserted into through holes, the support legs are fixed relative to the mounting seat 11, the support legs and the fixed support rods 2 keep a relatively fixed angle, and the opening amplitude of the support legs is used for adjusting the opening amplitude of the support legs so as to adapt to different ground conditions or adjust the stability of the whole device. Sometimes, the ground is very uneven, and each leg cannot contact the ground at the same time when the lengths are the same, so that the lengths of the legs need to be adjusted to ensure the stability of the whole device, so that each leg can contact the ground and effectively support the device. Therefore, the leg is divided into an upper section 12 hinged with the mounting seat 11 and a lower section 13 sleeved on the upper section 12, the lower section 13 can move along the axial direction of the upper section 12, and the upper section 12 is also provided with a locking bolt 16 for locking and connecting the lower section 13 and the upper section 12.

Compared with the prior art, the anchor net installation auxiliary supporting device for underground mine excavation achieves the following effects: the labor intensity of workers is effectively reduced; the labor efficiency is improved; the safety risk in support is reduced.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and the principles of the utility model.

Claims

1. The utility model provides an anchor net installation auxiliary stay device for underground mine mining, includes base (1), install in fixed branch (2) on base (1), slip cap locate first lift branch (3) in fixed branch (2), slip cap locate second lift branch (4) in first lift branch (3), and horizontal installation in anchor net lifting platform (5) on second lift branch (4) top, its characterized in that:

a first gear (21) capable of shaking is arranged on the side part of the top end of the fixed support rod (2), a rack (31) is arranged at the axial position on the first lifting support rod (3) corresponding to the first gear (21), and the first gear (21) is meshed with the rack (31);

a second gear (32) is arranged on the side part of the top end of the first lifting support rod (3), one end of a chain (23) is fixedly arranged on the fixed support rod (2), and the other end of the chain is fixedly arranged on the lower side part of the inside of the second lifting support rod (4) after passing through the second gear (32);

when the first gear (21) is rocked, the first gear (21) drives the rack (31) to move relatively so as to drive the first lifting support rod (3) to slide relatively to the fixed support rod (2), meanwhile, the second gear (32) moves along with the first lifting support rod (3), and the driving chain (23) drives the second lifting support rod (4) to slide in the same direction relatively to the first lifting support rod (3), so that the anchor net lifting platform (5) is lifted or lowered rapidly.

2. The anchor net installation auxiliary supporting device for underground mine mining according to claim 1, wherein: the first gear (21) is provided with a locking device (22), when the first gear (21) is rocked to lift the anchor net lifting platform (5), the first gear (21) can be prevented from reversing, and when the locking device (22) is unlocked, the anchor net lifting platform (5) can be lowered.

3. The anchor net installation auxiliary supporting device for underground mine mining according to claim 1, wherein: the anchor net lifting platform (5) comprises a longitudinal main beam (51) and two transverse support arms (52), wherein the longitudinal main beam (51) is sleeved with the transverse support arms (52) in the middle, the transverse support arms (52) can axially move along the longitudinal main beam (51), locking bolts (54) are further arranged on the transverse support arms (52) and used for fixing the transverse support arms (52) on the longitudinal main beam (51), and anchor net fixing columns (53) are further arranged on the upper portions of the transverse support arms (52).

4. An anchor net installation auxiliary supporting device for underground mine mining according to claim 3, wherein: one side of the top end of the second lifting support rod (4) is provided with a hinging seat (55), the anchor net lifting platform (5) is hinged with the second lifting support rod (4) through the hinging seat (55), and the anchor net lifting platform (5) can vertically rotate relative to the second lifting support rod (4).

5. The anchor net installation auxiliary supporting device for underground mine mining according to claim 4, wherein: a rotating handle (56) is arranged on one side of a hinging seat (55) at the middle position of the longitudinal girder (51) and is used for manually rotating the anchor net lifting platform (5).

6. The anchor net installation auxiliary supporting device for underground mine mining according to any one of claims 1 to 5, wherein: the base (1) consists of 3 or 4 supporting legs, each supporting leg is hinged with the fixed supporting rod (2) through a mounting seat (11), and a supporting leg adjusting device is further arranged on the mounting seat (11).

7. The anchor net installation auxiliary supporting device for underground mine mining of claim 6, wherein: the landing leg comprises an upper section (12) hinged with the mounting seat (11) and a lower section (13) sleeved on the upper section (12), the lower section (13) can move along the axial direction of the upper section (12), and the upper section (12) is further provided with a locking bolt (16) for locking and connecting the lower section (13) and the upper section (12).

8. The anchor net installation auxiliary supporting device for underground mine mining of claim 6, wherein: the landing leg adjusting device comprises a plurality of positioning notches (14) which are distributed in a fan shape on the edge of the landing leg direction of the mounting seat (11), through holes are formed in positions, corresponding to the positioning notches (14), of the upper section (12), and a bolt or a shaft pin can be inserted into the through holes of the upper section (12) through the positioning notches (14) so that the landing leg can keep a fixed unfolding angle.