CN214196355U

CN214196355U - Arched shock-absorbing support frame structure for coal mine tunnel

Info

Publication number: CN214196355U
Application number: CN202023044833.8U
Authority: CN
Inventors: 展勤建; 李胜强; 薛志成; 何勇毅; 蒋士磊
Original assignee: Guangdong University of Petrochemical Technology
Current assignee: Guangdong University of Petrochemical Technology
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-14
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses an arch shock-absorbing support frame structure for a coal mine tunnel, which relates to the technical field of coal mines and comprises an electric lifting column, a support column and a shock-absorbing frame, wherein the support column is arranged in the electric lifting column, the top of the support column is fixedly welded with a fixed cavity, the shock-absorbing frame is arranged between the two fixed cavities, a side damping device is arranged between the fixed cavity and the electric lifting column, the side damping device comprises a chute and a damping plate, a damping slide block which is connected in a sliding way is arranged inside the sliding chute, a damping fixed block is respectively arranged at the top and the bottom of the sliding chute, the bottom side of shock attenuation board is rotated and is connected with two supports, and two supports rotate respectively and connect shock attenuation slider and shock attenuation fixed block, adopt the technical scheme of the utility model can not only support the top in coal mine tunnel, can also carry out the shock attenuation to the lateral wall and support, let the colliery workman work under safer environment.

Description

Arched shock-absorbing support frame structure for coal mine tunnel

Technical Field

The utility model relates to a colliery technical field especially relates to a colliery tunnel arch shock attenuation formula supporting frame structure.

Background

At present, the support is the stability and construction safety after the underground chamber is excavated, and the general name of the components or other measures for supporting, strengthening or coating the surrounding rock is adopted, along with the gradual improvement of the national requirements on mine, underground safety and working conditions, a high-strength support frame must be installed for ensuring the construction safety of underground coal mine roadways in the excavation process, the existing underground coal mine support frame generally plays a role in supporting the upper-layer ground surface to prevent the collapse of the upper-layer ground surface, generally has no damping effect, the support body of the support frame without the shock absorption effect is easy to crack and fall due to long-time tightening, and the support body is easy to damage to generate certain danger if not maintained along with the passage of time, therefore, the arch-shaped shock-absorbing support frame structure for the coal mine roadway is provided by upgrading and transforming on the basis of the existing building cost device to overcome the existing problems and defects.

Current coal mine tunnel arch shock attenuation formula supporting frame structure is like utility model patent "a coal mine tunnel arch shock attenuation formula supporting frame structure" of application number "CN 201921513901.5 in, the supporting frame passes through diagonal brace and shock attenuation frame, supports the rock stratum at ore deposit way top and can carry out the shock attenuation, but the supporting frame can not carry out effectual support to the ore deposit hole lateral wall completely, also can not make the shock attenuation effect to the ore deposit way lateral wall.

SUMMERY OF THE UTILITY MODEL

The utility model provides a colliery tunnel arch shock attenuation formula supporting frame structure to solve the current problem that can't carry out the shock attenuation processing to the lateral wall.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an arched shock-absorbing support frame structure of a coal mine roadway, which comprises an electric lifting column, a support column, a top beam, a shock-absorbing frame and an inclined support rod, the support column is arranged in the electric lifting column, a fixed cavity is welded and fixed at the top of the support column, the top beam is movably connected with the fixed cavities, the shock absorption frame is arranged between the two fixed cavities, a connecting ring is welded and fixed in the middle of the shock absorption frame, the inclined support rod is rotatably and movably connected with the connecting ring, a side surface damping device is arranged between the fixed cavity and the electric lifting column, the side damping device comprises a sliding chute and a damping plate, a damping sliding block in sliding connection is arranged in the sliding chute, the damping sliding block is characterized in that the top and the bottom of the sliding groove are respectively provided with a damping fixed block, the bottom side of the damping plate is rotatably connected with two supports, and the two supports are respectively rotatably connected with the damping sliding block and the damping fixed block.

At first, the electric lifting column is fixed inside a coal mine tunnel, the damping frame is embedded into the two sides of the fixed cavity, the two sides of the top beam are fixed on the top of the fixed cavity, the support body of the damping frame is fixed on the top ends of the support columns at the two ends, the inclined support rods at the middle parts of the damping frame support the top beam at the top, the electric lifting column is powered on, the support columns are lifted inside the electric lifting, the telescopic sliding grooves are driven to stretch simultaneously, and the support columns at the two ends are supported and protected after being lifted to the top wall of the tunnel.

Later with the support that the shock attenuation board is connected with shock attenuation slider and shock attenuation fixed block respectively through spacing subassembly, readjust the position of shock attenuation slider and shock attenuation fixed block, make the shock attenuation board support the protection to it after closely laminating the tunnel lateral wall, take place vibrations at the lateral wall like this, the lateral wall produces horizontal power extrusion shock attenuation board, transmit the power to shock attenuation slider and shock attenuation fixed block through the support on, shock attenuation slider and shock attenuation fixed block turn into fore-and-aft power with power dispersion again and offset, play the shock attenuation effect to the lateral wall.

Preferably, the two sides of the chute are provided with through openings, and the edges of the two sides are provided with flanges extending oppositely.

The opening of both sides is used for inserting components such as fastening bolt and fixes the position of shock attenuation slider, and the flange can not let the shock attenuation slider drop and reserve the space and let the support pass the spout and be connected with the shock attenuation slider.

Preferably, the middle points of the upper side and the lower side of the damping sliding block are respectively provided with a limiting assembly, the limiting assemblies are provided with shaft pins, and the front side and the rear side of the damping sliding block are respectively provided with a fastening bolt.

Through the pivot, can reach support and shock attenuation slider and shock attenuation fixed block fixed connection's effect with support and spacing subassembly fixed connection, fastening bolt can fix the shock attenuation slider in a certain position of spout, makes the support and the shock attenuation of shock attenuation board to the lateral wall more nimble.

Preferably, the shock attenuation fixed block includes fixed block and gag lever post, the downside bearing of fixed block is connected with a self-locking nut, the one end fixedly connected with spring snubber block of gag lever post, the other end run through the upper and lower both sides and the self-locking nut of fixed block, the gag lever post outside has the screw thread with nut matched with.

The self-locking nut is rotated by using the wrench, the limiting rod can move up and down through the mutually matched threads, and the limiting rod drives the spring damping block to move up and down in the sliding groove so as to adjust the position of the damping plate and support the protection effect on the side wall.

Preferably, the spring snubber block includes upper iron plate, lower floor's iron plate and spring, the both ends of spring respectively with upper iron plate and lower floor's iron plate fixed connection, wherein the outside of an iron plate is equipped with a spacing subassembly, another and gag lever post fixed connection.

When the lateral wall shakes, the shock attenuation board is extruded, and horizontal power can be transmitted to the spring damper block through the support on, and spring damper block one end is fixed, and other end atress removes, extrudees the spring, and the spring offsets the power again, reaches the shock attenuation effect.

Drawings

Fig. 1 is a schematic structural view of an arch-shaped shock-absorbing support structure for a coal mine tunnel provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a position a according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a position B provided in the embodiment of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following drawings and embodiments:

reference numerals in the drawings of the specification include: the device comprises a top beam 1, an inclined stay bar 2, a damping frame 3, a fixed cavity 4, a support 5, a damping plate 6, a sliding chute 7, a supporting column 8, an electric lifting column 9, a fastening bolt 10, a limiting component 11, a damping slide block 12, a self-locking nut 13, a limiting rod 14, a fixed block 15 and a spring damping block 16.

As shown in fig. 1 and 2, a colliery tunnel arch shock attenuation formula supporting frame structure, including back timber 1, diagonal brace 2, shock attenuation frame 3, support column 8 and electronic lift post 9, place the inside of electronic lift post 9 in the support column 8 in, the top welded fastening of support column 8 has a fixed chamber 4, back timber 1 swing joint in fixed chamber 4, shock attenuation frame 3 arranges in between two fixed chambers 4, the middle department welded fastening of shock attenuation frame 3 has a connecting ring, the rotatory swing joint in connecting ring of diagonal brace 2.

Be equipped with a side damping device between fixed chamber 4 and the electronic lift post 9, side damping device includes telescopic spout 7 and shock attenuation board 6, the left side of shock attenuation board 6 is rotated and is connected with two supports 5, two supports 5 rotate respectively and are connected with damping slide 12 and shock attenuation fixed block 15, the opening has been seted up to the front and back side of spout 7, and the right edge of both sides is equipped with the flange of relative extension, can not let damping slide 12 drop like this and leave the space and let support 5 pass spout 7 and damping slide 12 and be connected.

The damping sliding block 12 is connected in the middle of the sliding groove 7 in a sliding mode, the middle points of the upper side and the lower side of the damping sliding block 12 are respectively provided with a limiting component 11, the limiting components 11 are provided with shaft pins for limiting the support 5, and the front side and the rear side of the damping sliding block 12 are respectively provided with a fastening bolt 10 for fixing the damping sliding block 12.

As shown in fig. 3, the damping fixing blocks are respectively arranged at the top and the bottom of the sliding chute 7 and are in a mirror image relationship, each damping fixing block comprises a fixing block 15 and a limiting rod 14, the fixing block 15 at the top of the sliding chute 7 is fixedly connected to the lower side of the fixing cavity 4, and the left side of the fixing block 15 at the bottom of the sliding chute 7 is fixedly connected with the upper part of the electric lifting column 9; the lower side bearing of the fixed block 15 is connected with a self-locking nut 13, the limiting rod 14 penetrates through the upper side and the lower side of the fixed block 15 and the self-locking nut 13, and the outer side of the limiting rod 14 is provided with threads matched with the self-locking nut 13.

One end of the limiting rod 14 is fixedly connected with a spring damping block 16 and is positioned inside the sliding chute 7, the spring damping block 16 comprises an upper layer of iron block and a lower layer of iron block and a spring, and the spring is positioned between the upper layer of iron block and the lower layer of iron block and is fixedly connected with the iron block; the upside fixedly connected with of the upper iron plate of the spring snubber block 16 of spout 7 bottom is a spacing subassembly 11, and the downside fixedly connected with of the lower floor iron plate of the spring snubber block 16 at spout 7 top is a spacing subassembly 11, reciprocates through rotating dwang 13 drive gag lever post 14, drives the position that damper plate 6 was adjusted in 16 removal of spring snubber block that drive, and when the extrusion of lateral wall atress, power can be offset by the spring simultaneously, reaches the shock attenuation effect.

The specific implementation process is as follows:

at first, electronic lift post 9 is fixed inside the coal mine tunnel, it is inside with the fixed chamber 4 of 3 embedding both sides of shock attenuation frame again, fix the top at fixed chamber 4 with back timber 1 both sides again, make the support body of shock attenuation frame 3 fix the support column 8 tops at both ends, and 2 the back timber 1 at top are supported to the diagonal brace through the 3 middle parts of shock attenuation frame, it is circular telegram with electronic lift post 9 again, make support column 8 rise inside the electronic lift, it is tensile to drive flexible spout 7 simultaneously, support column 8 at both ends supports the protection after rising to the tunnel roof.

Afterwards, support 5 connected with damping plate 6 passes through spacing subassembly 11 fixed connection with damping slide 12 and shock attenuation fixed block 15 respectively, damping slide 12 slides again and rotates self-locking nut 13 with the spanner, adjust the position of gag lever post 14 and spring damper block 16, make damping plate 6 support the protection after closely laminating the tunnel lateral wall, take place vibrations at the lateral wall like this, the lateral wall produces horizontal power extrusion damping plate 6, through support 5 with power transmission to damping slide 12 and shock attenuation fixed block 15 on, damping slide 12 and shock attenuation fixed block 15 turn into fore-and-aft power and offset with power dispersion again, play the shock attenuation effect to the lateral wall.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a colliery tunnel arch shock attenuation formula supporting frame structure, includes electronic lift post, support column, back timber, shock attenuation frame and diagonal brace, place the inside of electronic lift post in the support column in, the top welded fastening of support column has a fixed chamber, back timber swing joint is in fixed chamber, the shock attenuation frame is arranged in between two fixed chambers, the middle department welded fastening of shock attenuation frame has a connecting ring, the rotatory swing joint of diagonal brace in connecting ring, its characterized in that: a side damping device is arranged between the fixed cavity and the electric lifting column and comprises a sliding groove and a damping plate, a damping sliding block is arranged inside the sliding groove in a sliding connection mode, the top and the bottom of the sliding groove are respectively provided with a damping fixed block, the bottom side of the damping plate is rotatably connected with two supports, and the two supports are respectively rotatably connected with the damping sliding block and the damping fixed block.

2. The arch shock-absorbing support frame structure for coal mine roadways according to claim 1, characterized in that: the both sides of spout are seted up the opening to the both sides edge is equipped with the flange that extends relatively.

3. The arch shock-absorbing support frame structure for coal mine roadways according to claim 1, characterized in that: the middle points of the upper side and the lower side of the damping sliding block are respectively provided with a limiting assembly, the limiting assemblies are provided with shaft pins, and the front side and the rear side of the damping sliding block are respectively provided with a fastening bolt.

4. The arch shock-absorbing support frame structure for coal mine roadways according to claim 1, characterized in that: the damping fixing block comprises a fixing block and a limiting rod, a self-locking nut is connected to a lower side bearing of the fixing block, a spring damping block is fixedly connected to one end of the limiting rod, the other end of the limiting rod penetrates through the upper side and the lower side of the fixing block and the self-locking nut, and threads matched with the nut are arranged on the outer side of the limiting rod.

5. The arched shock-absorbing support frame structure for the coal mine roadway according to claim 4, wherein: the spring shock absorption block comprises an upper layer iron block, a lower layer iron block and a spring, wherein two ends of the spring are fixedly connected with the upper layer iron block and the lower layer iron block respectively, the outer side of one iron block is provided with a limiting component, and the other iron block is fixedly connected with a limiting rod.