CN213510654U

CN213510654U - W steel backplate is strutted and is propped net fixed orifices device

Info

Publication number: CN213510654U
Application number: CN202021128159.9U
Authority: CN
Inventors: 杨帅; 田红卫; 杨洋; 徐仪昌; 樊冲; 刘雪飞
Original assignee: China Coal Science And Technology Energy Technology Development Co ltd; Shanxi Tiandi Wangpo Coal Mining Co ltd
Current assignee: China Coal Science And Technology Energy Technology Development Co ltd; Shanxi Tiandi Wangpo Coal Mining Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-06-22
Anticipated expiration: 2030-06-18

Abstract

The utility model relates to a W steel guard plate support net hole-fixing device, belonging to the technical field of underground coal mine support; the problem that the metal net cannot be safely and effectively spread in the top net loading process is solved; the problem of overlarge row spacing between actual supports of anchor rods (cables) at the top and the design error of the supports; the technical scheme is as follows: the die comprises a die frame and a metal net connected to the die frame, wherein the die frame is a ladder beam which is arranged in parallel, the ladder beams are fixedly connected through a plurality of positioning rods which are uniformly distributed, the positioning rods correspond to the positions of anchor rods or anchor cables which are preset on a top plate and are used for calibrating the arrangement hole positions of the anchor rods or the anchor cables, and the metal net is fixedly connected to the positioning rods; the implementation of the net supporting positioning device solves the difficult problem of the link of surfing the net by staff, and meanwhile, the hole site reference provided during the supporting period is provided, and the top supporting engineering quality is improved.

Description

W steel backplate is strutted and is propped net fixed orifices device

Technical Field

The utility model belongs to the technical field of the colliery is in the pit, concretely relates to W steel backplate is strutted and is propped net fixed orifices device.

Background

In the production process of the fully mechanized mining face, the underground tunneling machine set normally operates by means of airborne temporary support, but roadways under some special environmental conditions have the defects that a top plate and front-facing gangue are broken due to space environment limitation, oil ports are too many, the top plate and the front-facing gangue easily fall off again due to weathering when meeting water, and the airborne temporary support function is not provided.

In addition, the steel belt does not have a net supporting function, the requirement of safe online on a construction site cannot be met, and meanwhile, the top support lacks an effective reference scale, so that the row distance between anchor rods (cables) of the actual support is not consistent with the support design, the quality of roadway support engineering is reduced, and safety production accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the prior art, provides a W steel guard plate supporting and net-supporting hole-positioning device, solves the link of top net, and the metal net can not be safely and effectively spread; the row spacing between the actual supports of the anchor rods (cables) at the top and the design error of the supports are overlarge.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

The utility model provides a W steel backplate is strutted and is propped net fixed orifices device, includes mould frame and the metal mesh of connection on the mould frame, the mould frame is parallel arrangement's ladder roof beam, through a plurality of evenly distributed's locating lever fixed connection between the ladder roof beam, the locating lever is corresponding with the position of the stock or the anchor rope of presetting on the roof for mark the hole site that sets up of stock or anchor rope, metal mesh fixed connection is on the locating lever.

Furthermore, the die frame is composed of two ladder beams arranged in parallel, and a plurality of positioning rods are fixedly connected between the two ladder beams.

Furthermore, the locating lever sets up with the ladder roof beam is perpendicular, and the locating lever comprises two alternate long steel bars.

Further, the W steel guard plate support comprises a W steel guard plate, an anchor rod and an anchor cable, the anchor rod is matched with the W steel guard plate to support the top plate, and the anchor cable is arranged between the two rows of W steel guard plates; the device also comprises a long front canopy, a short front canopy and a side protection plate; the long forepoling beam is suspended between the lower portion of the top plate and the top plate to form a hollow top area, the short forepoling beam is arranged on the head of the long forepoling beam, the short forepoling beam is perpendicular to the long forepoling beam and is close to the coal wall, a side protection plate is fixed on the head of the short forepoling beam, the long forepoling beam and the short forepoling beam are fixedly connected through a support rod, a metal net is fixed on the extending portion of the long forepoling beam in the hollow top area, and the ladder beam is fixedly connected to one side of the same row of anchor rods or anchor cables and is perpendicular to the long forepoling beam.

Furthermore, the long forepoling bar is hung at the lower part of the top plate through a hanging ring and is fixed through a wood wedge.

Further, the long and short foreheads are steel rails.

Furthermore, two ends of the side protection plate are limited and fixed by a stop lever.

Further, the stay is diagonally supported between the long and short forebeams.

Furthermore, the height of the bottom of the short forepoling beam from the float coal platform is less than 1 m.

The utility model discloses produced beneficial effect does for prior art.

In the tunneling process, after workers bundle the ladder beam and the metal mesh according to the designed position in advance, no matter the single anchor rod machine supports and tunnels the roadway or the CMM2-15 type hydraulic drill carriage supports and tunnels the roadway, the metal mesh can be effectively and conveniently placed on the net, and the metal mesh is flatly spread.

Staff can directly and clearly know the position of each anchor rod (cable) to be arranged in the supporting operation process after surfing the net according to the driving center line of the roadway through specific hole sites welded on the ladder beam, so that the supporting efficiency is greatly improved, and the construction quality of the roadway is further improved.

By the aid of the pushing of the steel bar ladder beam supporting net positioning process, the problems that a top net is difficult to lay, row spacing errors are large and supporting efficiency is low in the fully mechanized excavation face W steel guard plate top anchor rod (cable) supporting operation process are solved really and effectively.

The implementation of the positioning process of the steel bar ladder beam supporting net solves the difficult problem of the link of workers to surf the net, and meanwhile, the hole site reference is provided for the supporting period, and the top supporting engineering quality is improved.

Drawings

Fig. 1 is a schematic structural view of the mold frame of the present invention.

Fig. 2 is the utility model discloses a strut and prop net fixed orifices device's top view.

Fig. 3 is a side view of the W steel guard support of the present invention.

Fig. 4 is an attached view of the W steel guard plate support of the present invention.

The device comprises a long forepoling bar 1, a short forepoling bar 2, a supporting rod 3, a hanging ring 4, a stop rod 5, a connecting bolt 6, a wood wedge 7, a side guard plate 8, a W steel guard plate 9, an anchor rod 10, an anchor rope 11, a top plate 12, a coal wall 13, a metal net 14, a float coal platform 15, a ladder beam 16 and a positioning rod 17.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.

Taking 3312 transportation crossheading roadway top support as an example, the roadway design width is 5000mm, the support comprises a W steel guard plate 9, an anchor rod 10 and an anchor rope 11, the anchor rod 10 is matched with the W steel guard plate 9 to support a top plate 12, and the anchor rope 11 is arranged between two rows of W steel guard plates 9; and 6 anchor rods 10 are adopted at the top of each row to be matched with a W steel guard plate 9 for supporting, and anchor cables 3-2-3 are arranged, wherein 6 anchor rods 10 are arranged at intervals of 900 mm. The thickness of the W steel guard plate 9 is 6 mm. The anchor 10 is fitted with a flange nut.

The structural improvement is that a W steel guard plate front canopy supporting device is additionally arranged, and as shown in figures 3 and 4, the front canopy supporting device comprises a long front canopy 1, a short front canopy 2 and a side protection plate 8; the long forepoling beam 1 and the short forepoling beam 2 are light steel rails with material strength Q235 and 15 kg/m.

The long forepoling bar 1 is suspended under the roof 12 by a suspension ring 4 and fixed by a wooden wedge 7. A hollow top area is formed between the long forepoling beam 1 and the top plate 12, a short forepoling beam 2 is arranged at the head of the long forepoling beam 1, the short forepoling beam 2 is perpendicular to the long forepoling beam 1 and is close to the coal wall 13, three side guards 8 are fixed at the head of the short forepoling beam 2, and two ends of each side guard 8 are limited and fixed by a stop lever 5; the long forepoling beam 1 and the short forepoling beam 2 are fixedly connected through a support rod 3, and the support rod 3 is obliquely supported between the long forepoling beam 1 and the short forepoling beam 2 and is connected with the long forepoling beam 1 and the short forepoling beam 2 through a connecting bolt 6. The long forepoling bar 1 is fixed with a metal net 14 on the extension part in the hollow area. Float coal (waste rock) with the length of about 3m and the front height of about 1m is reserved at the bottom of the short forepoling beam 2, and the height of the bottom of the short forepoling beam 2 from the float coal platform 15 is ensured to be less than 1 m.

Wherein, as shown in fig. 1 and 2, prop the net and decide the hole device and fix at roof 2, metal mesh 14 is fixed through terraced roof beam 16, prop the net and decide the hole device and include the mould frame and connect metal mesh 14 on the mould frame, the mould frame is two terraced roof beams 16 of parallel arrangement, 2 length 4700mm, diameter 200 mm's reinforcing bar transverse arrangement is adopted in the formulation of terraced roof beam 16, adopt 12 length 100mm diameter 200mm reinforcing bars in the middle of the reinforcing bar (two are a set of, interval 100 mm), locating lever 17 longitudinal arrangement (two are a set of), the welding forms. Wherein the distance between the centers of each group of positioning rods 17 is 900mm, and the distance between the centers of each group of positioning rods and the end of the long reinforcing steel bar is 100 mm. The positioning rod 17 corresponds to the position of the anchor rod 10 or the anchor cable 11 preset on the top plate 12 and is used for calibrating the hole positions of the anchor rod 10 or the anchor cable 11, the metal net 14 is fixedly connected to the positioning rod 17 through 16# iron wires and is bound for at least 3 times, and the metal net is unfolded and laid flat. The operation personnel can conveniently surf the internet. Meanwhile, the drilling range of the anchor rod on the die frame is calibrated, an engineering quality inspector needs to calibrate the central line of the internet and the central line of the anchor cable hole site on the die frame according to the central line of a construction roadway before surfing the internet, and after surfing the internet, an operator performs hole positioning according to the calibrated position of the central line of the anchor rod (cable) in top plate supporting operation, so that the supporting engineering quality is greatly improved.

The method specifically comprises the following steps: the top of the temporary front canopy support is hung by 2 4m long front canopy beams 1 through a hanging ring 4 and fixed by a wood wedge 7, and the front canopy support is vertically arranged by 2 1.8m short front canopy beams 2 and abuts against a coal wall 13 and is prepositively fixed with 3 side protection plates 8. The long forepoling bar and the short forepoling bar are connected and reinforced through 4.8-level bolts and support rods 3. The top metal mesh 14 is connected with the network through the ladder beam 16 and then placed on the extension part in the hollow top area of the long forepoling beam, so that the top coal (gangue) is prevented from falling to hurt people. The short forepoling bar 2 vertically arranged at the head of the vehicle forms a protective barrier with the range of length multiplied by width =4500mm multiplied by 1400mm through three fixed side protection plates 8, and prevents the head coal (gangue) from falling to hurt people.

The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a W steel backplate is strutted and is propped net fixed orifices device, its characterized in that, includes mould frame and metal mesh (14) of connection on the mould frame, the mould frame is parallel arrangement's ladder roof beam (16), through a plurality of evenly distributed's locating lever (17) fixed connection between ladder roof beam (16), the position of stock (10) or anchor rope (11) of presetting on locating lever (17) and roof (12) is corresponding for demarcating setting up the hole site of stock (10) or anchor rope (11), metal mesh (14) fixed connection is on locating lever (17).

2. The W-steel guard plate supporting and net supporting hole fixing device as claimed in claim 1, wherein the die frame is two ladder beams (16) arranged in parallel, and a plurality of positioning rods (17) are fixedly connected between the two ladder beams (16).

3. The W-steel guard plate supporting and net supporting hole positioning device as claimed in claim 1 or 2, wherein the positioning rods (17) are perpendicular to the ladder beam (16), and the positioning rods (17) are composed of two spaced steel bars.

4. The W-steel guard plate support net supporting and hole fixing device is characterized in that a W-steel guard plate support comprises a W-steel guard plate (9), anchor rods (10) and anchor cables (11), the anchor rods (10) are matched with the W-steel guard plate (9) to support a top plate (12), and the anchor cables (11) are arranged between two rows of the W-steel guard plate (9); the device also comprises a long forepoling beam (1), a short forepoling beam (2) and a side protection plate (8); the long forepoling beam (1) is suspended between the lower portion of the top plate (12) and the top plate (12) to form an empty roof area, the short forepoling beam (2) is arranged on the head of the long forepoling beam (1), the short forepoling beam (2) is perpendicular to the long forepoling beam (1) and abuts against a coal wall (13), a side protection plate (8) is fixed on the head of the short forepoling beam (2), the long forepoling beam (1) and the short forepoling beam (2) are fixedly connected through a support rod (3), a metal net (14) is fixed on the extending portion of the long forepoling beam (1) located in the empty roof area, and the ladder beam is fixedly connected to one side of the same row of anchor rods or anchor cables and perpendicular to the long forepoling beam (1).

5. The W-steel guard plate supporting and net supporting and hole positioning device is characterized in that the long forepoling bar (1) is hung at the lower part of the top plate (12) through a hanging ring (4) and fixed through a wood wedge (7).

6. The W-steel guard plate supporting and net supporting hole fixing device is characterized in that the long forepoling beam (1) and the short forepoling beam (2) are steel rails.

7. The W-steel guard plate supporting and supporting net hole-fixing device is characterized in that two ends of the side guard plate (8) are limited and fixed by a stop rod (5).

8. The W-steel cover plate supporting and supporting net hole-fixing device according to claim 4, characterized in that the stay bar (3) is obliquely supported between the long front cantilever (1) and the short front cantilever (2).

9. The W-steel guard plate supporting and net supporting hole fixing device is characterized in that the height of the bottom of the short forepoling bar (2) from the float coal platform (15) is less than 1 m.