Mine tunnel crossheading belt conveyor foundation hydraulic prop protection device

Abstract

The utility model discloses a mine tunnel crossheading belt conveyor foundation hydraulic prop protection device which comprises an anti-explosion sheath, a fixed base, a fixed top seat, a side air pressure supporting rod and a plurality of annular fixed seats, the anti-explosion sheath is of a cylindrical structure, the fixed top seat is arranged at the top of the anti-explosion sheath, the fixed base is arranged at the bottom of the anti-explosion sheath, and the side air pressure supporting rod is arranged on the fixed base. The annular fixing seat is arranged on the inner surface of the explosion-proof sheath in the axial direction of the explosion-proof sheath, the annular fixing seat is centripetally fastened in the radial direction of the explosion-proof sheath, a buffer structure is arranged between the inner wall and the outer wall of the explosion-proof sheath, and the air pressure measuring supporting column is a movable rod body arranged on the side face of the explosion-proof sheath and connected with the surface of a mine tunnel. According to the device, through an external anti-explosion mechanism, metal chipping splashing caused by failure and damage of a hydraulic prop support is avoided, and meanwhile, an outer sleeve mode is adopted to achieve rapid transformation of an existing prop in a mine tunnel. According to the device, the middle of the centripetally-moving fixing bent rod makes contact with the supporting column and then is fixed through the positioning pin, rapid wrapping type fixing is achieved, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of support device protection, in particular to a hydraulic support protection device for a mine chute belt conveyor foundation. Background Art

[0002] During the mining process, in order to more conveniently and quickly construct the installation foundation of equipment such as the chute belt conveyor, the existing mining machinery and equipment are designed with a mechanical steel structure foundation, which uses a hydraulic cylinder to lift the support column structure for operation and support. It is easy to erect and use, greatly shortening the construction time of the mine foundation and reducing construction costs.

[0003] Since the hydraulic support is a constant-force liquid pressure lifting mechanism, metal fatigue problems are often prone to occur during long-term constant-force support. At the same time, mining equipment such as the chute belt conveyor itself has a large weight. Combined with the complex environment of the mine tunnel, explosion-proof and protection of the support device is a necessary measure.

[0004] Patent CN208364153U discloses a hydraulic support protection device for the foundation of a mine chute belt conveyor, which includes a support and an adjusting rod. The adjusting rod is installed in the support and arranged along the axial direction of the support; the support is fixedly provided with a fixed limit plate along the axial installation position of the adjusting rod, and a mounting hole is provided on the fixed limit plate; the adjusting rod adopts a threaded rod structure, on which a limit nut is installed; the adjusting rod is installed along the center of the mounting hole of the fixed limit plate, and the limit nut is adjusted and installed on the upper side of the fixed limit plate, and the shaft diameter of the limit nut is larger than the shaft diameter of the mounting hole of the fixed limit plate.

[0005] The rigid structure it adopts can effectively realize the protection function, but it is difficult to provide effective protection for personnel against metal explosion caused by pressure when the device fails. At the same time, this device is an overall modified structure based on the original support structure, and it is difficult to quickly modify it based on the original pillar structure in actual use.

[0006] A hydraulic support protection device for the foundation of a mine chute belt conveyor is now needed to solve the above problems. Utility Model Content

[0007] The utility model is intended to solve the problem that the rigid external protection structure adopted in the prior art can effectively realize the protection function, but it is difficult to effectively protect personnel from metal explosion caused by pressure when the device fails. At the same time, this device is an overall modified structure based on the original support structure, and it is difficult to quickly modify the original support structure in actual use. A hydraulic support protection device for the foundation of a mine chute belt conveyor is provided to solve the above problems.

[0008] The utility model provides a hydraulic support protection device for the foundation of a mine tunnel conveyor, comprising an explosion-proof sleeve, a fixed base, a fixed top seat, a side pneumatic support rod and a plurality of annular fixed seats. The explosion-proof sleeve is a cylindrical structure, the fixed top seat is arranged on the top of the explosion-proof sleeve, the fixed base is arranged on the bottom of the explosion-proof sleeve, the annular fixed seat is arranged on the inner surface of the explosion-proof sleeve along the axial direction of the explosion-proof sleeve, the annular fixed seat is fastened centripetally along the radial direction of the explosion-proof sleeve, a buffer structure is arranged between the inner wall and the outer wall of the explosion-proof sleeve, and the side pneumatic support rod is a movable rod body arranged on the side of the explosion-proof sleeve and connected to the mine tunnel surface.

[0009] The utility model describes a hydraulic support protection device for the foundation of a mine tunnel conveyor. As an optimal method, the explosion-proof jacket includes a cylindrical shell and a buffer layer. The buffer layer is a cylindrical structure with holes. The cylindrical shell is a cylindrical structure. A cavity is provided in the cylindrical shell. The buffer layer is provided inside the cavity. The surface of the buffer layer contacts the inner cavity wall of the cylindrical shell.

[0010] The utility model describes a hydraulic support protection device for the foundation of a mine tunnel conveyor. As an optimal method, a horizontal support rod and a plurality of vertical support rods are provided in a cylindrical shell. The two ends of the horizontal support rod contact the inner surface of the inner layer of the cylindrical shell and the inner surface of the outer layer of the cylindrical shell along the radial direction of the cylindrical shell, and the two ends of the vertical support rod contact the inner surface of the top layer of the cylindrical shell and the inner surface of the bottom layer of the cylindrical shell along the axial direction parallel to the cylindrical shell.

[0011] The cam ring is an annular structure arranged on the fixing ring, and the cam ring is provided with a cam groove with the same number as the fixing bent rods. One end of each fixing bent rod is evenly and rotatably fixed on the fixing ring, and the other end of the fixing bent rod slides in the cam groove of the cam ring. The density of the cam groove on the cam ring is equal to the density of the fixed end of the fixing bent rod on the fixing ring. The two extreme position states of the fixing bent rod on the cam groove are respectively located on the fixed end of the fixing bent rod with the fixed ring diameter as the symmetry axis perpendicular to the projection point on the other side of the fixing ring as the center line of the fixing ring and the fixed end of the first fixed bent rod in the opposite direction of the arc of the fixing bent rod with the fixed end of the fixing bent rod with the fixed ring diameter as the symmetry axis perpendicular to the projection point on the other side of the fixing ring as the radial line away from the center line. The fixing ring and the cam ring are provided with matching through holes, and the locating pin is positioned through the two through holes.

[0012] The utility model describes a hydraulic support protection device for the foundation of a mine tunnel conveyor. As an optimal method, the side pneumatic support rod is a telescopic two-section rod, and an air chamber is provided at the connection between the two sections of the pneumatic support rod, and the air chamber is provided with a small hole connected to the outside world.

[0013] The beneficial effects of the utility model are as follows:

[0014] This device uses an external explosion-proof mechanism to prevent metal debris from flying when a hydraulic support fails. It also uses a jacket to quickly retrofit existing support pillars within a mine tunnel. The device uses a centripetally moving fixed curved rod to contact the support at the center, which is then secured with a locating pin, achieving a quick, wrap-around fixation and making operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a hydraulic support protection device for a mine chute belt conveyor foundation;

[0016] Figure 2 This is a schematic diagram of an explosion-proof sheath for a hydraulic support protection device for a mine chute belt conveyor foundation;

[0017] Figure 3 This is a schematic diagram of a ring-shaped fixing seat for a hydraulic support protection device for a mine chute belt conveyor foundation;

[0018] Figure 4 This is a schematic diagram of the perspective position relationship of a single fixed bent rod in a hydraulic support protection device for the foundation of a mine chute belt conveyor, viewed from above.

[0019] Reference numerals:

[0020] 1. Explosion-proof sheath; 11. Cylindrical shell; 12. Buffer layer; 2. Fixed base; 3. Fixed top seat; 4. Side air pressure support rod; 5. Annular fixed seat; 51. Fixed ring; 52. Cam ring; 53. Positioning pin; 54. Fixed bent rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example 1

[0023] like Figure 1 As shown, a hydraulic support protection device for the foundation of a mine tunnel conveyor includes an explosion-proof sleeve 1, a fixed base 2, a fixed top seat 3, a side pneumatic support rod 4 and several annular fixed seats 5. The explosion-proof sleeve 1 is a cylindrical structure, the fixed top seat 3 is arranged on the top of the explosion-proof sleeve 1, the fixed base 2 is arranged on the bottom of the explosion-proof sleeve 1, the annular fixed seat 5 is arranged on the inner surface of the explosion-proof sleeve 1 along the axial direction of the explosion-proof sleeve 1, the annular fixed seat 5 is fastened radially and centripetally along the explosion-proof sleeve 1, a buffer structure is provided between the inner wall and the outer wall of the explosion-proof sleeve 1, and the side pneumatic support rod is a movable rod body connected to the mine tunnel surface and arranged on the side of the explosion-proof sleeve 1.

[0024] like Figure 2As shown, the explosion-proof jacket 1 includes a cylindrical shell 11 and a buffer layer 12. The buffer layer 12 is a cylindrical porous structure. The cylindrical shell 11 is a cylindrical structure. A cavity is provided in the cylindrical body of the cylindrical shell 11. The buffer layer 12 is provided inside the cavity. The surface of the buffer layer 12 contacts the inner cavity wall of the cylindrical shell 11.

[0025] like Figures 3-4 As shown, the annular fixing seat 5 includes a fixing ring 51, a cam ring 52, a positioning pin 53 and a plurality of fixed curved rods 54. The fixing ring 51 is an annular structure and is fixedly arranged on the inner wall of the protective sleeve. The cam ring 52 is an annular structure arranged on the fixing ring 51. The cam ring 52 is provided with the same number of cam grooves as the fixed curved rods 54. One end of each fixed curved rod 54 is evenly rotatably fixed on the fixing ring 51, and the other end of the fixed curved rod 54 slides in the cam groove of the cam ring 52. The density of the cam groove on the cam ring 52 is the same as that of the fixed curved rods 54 on the fixing ring 51. The density of the fixed ends is equal, and the two extreme position states of the fixed bent rod 54 on the cam groove are respectively located on the fixed end of the fixed bent rod 54 with the diameter of the fixed ring 51 as the symmetry axis, and the projection point on the other side of the fixed ring 51 is vertically symmetrical to the fixed end of the fixed bent rod 54 as the center connection line of the fixed ring 51, and the first fixed bent rod 54 with the fixed end of the fixed bent rod 54 in the opposite direction of the arc is vertically symmetrical to the projection point on the other side of the fixed ring 51 as the radial line away from the center of the circle. The fixed ring 51 and the cam ring 52 are provided with matching through holes, and the locating pin 53 is positioned through the two through holes.

[0026] The side pneumatic support rod 4 is a telescopic two-section rod. An air chamber is provided at the connection between the two sections of the pneumatic support rod, and the air chamber is provided with a small hole communicating with the outside world.

[0027] Example 2

[0028] A horizontal support rod and several vertical support rods are provided in the cylindrical shell 11. The two ends of the horizontal support rod contact the inner surface of the inner layer of the cylindrical shell 11 and the inner surface of the outer layer of the cylindrical shell 11 along the radial direction of the cylindrical shell 11, and the two ends of the vertical support rod contact the inner surface of the top layer of the cylindrical shell 11 and the inner surface of the bottom layer of the cylindrical shell 11 along the axial direction parallel to the cylindrical shell 11.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic support protection device for a mine chute belt conveyor foundation, characterized by: The invention comprises an explosion-proof casing (1), a fixed base (2), a fixed top seat (3), a side air pressure support rod (4) and a plurality of annular fixed seats (5), wherein the explosion-proof casing (1) is a cylindrical structure, the fixed top seat (3) is arranged at the top of the explosion-proof casing (1), the fixed base (2) is arranged at the bottom of the explosion-proof casing (1), the annular fixed seat (5) is arranged on the inner surface of the explosion-proof casing (1) along the axial direction of the explosion-proof casing (1), the annular fixed seat (5) is fastened radially and centripetally along the explosion-proof casing (1), a buffer structure is arranged between the inner wall and the outer wall of the explosion-proof casing (1), and the side air pressure support rod is a movable rod body arranged on the side of the explosion-proof casing (1) and connected to the mine tunnel surface.

2. The hydraulic support protection device for a mine chute belt conveyor according to claim 1, characterized in that: The explosion-proof sheath (1) comprises a cylindrical shell (11) and a buffer layer (12), wherein the buffer layer (12) is a cylindrical structure with holes, and the cylindrical shell (11) is a cylindrical structure. A cavity is provided in the cylindrical body of the cylindrical shell (11), and the buffer layer (12) is provided inside the cavity, and the outer surface of the buffer layer (12) contacts the inner cavity wall of the cylindrical shell (11).

3. The hydraulic support protection device for a mine chute belt conveyor foundation according to claim 2, characterized in that: A transverse support rod and a plurality of vertical support rods are provided in the cylindrical shell (11), wherein the two ends of the transverse support rod contact the inner surface of the inner layer of the cylindrical shell (11) and the inner surface of the outer layer of the cylindrical shell (11) along the radial direction of the cylindrical shell (11), and the two ends of the vertical support rod contact the inner surface of the top layer of the cylindrical shell (11) and the inner surface of the bottom layer of the cylindrical shell (11) along the axial direction parallel to the cylindrical shell (11).

4. The hydraulic support protection device for a mine chute belt conveyor foundation according to claim 1, characterized in that: The annular fixing seat (5) comprises a fixing ring (51), a cam ring (52), a positioning pin (53) and a plurality of fixed curved rods (54). The fixing ring (51) is an annular structure and is fixedly arranged on the inner wall of the explosion-proof sleeve (1). The cam ring (52) is an annular structure arranged on the fixing ring (51). The cam ring (52) is provided with cam grooves of the same number as the fixed curved rods (54). One end of each fixed curved rod (54) is uniformly rotatably fixed on the fixing ring (51). The other end of the fixed curved rod (54) slides in the cam groove of the cam ring (52). The density of the cam groove on the cam ring (52) is the same as that of the fixed curved rods (54). The fixed ends of the fixed curved rod (54) have equal density, and the two extreme position states of the fixed curved rod (54) on the cam groove are respectively located on the fixed end of the fixed curved rod (54) with the diameter of the fixed ring (51) as the symmetry axis and the projection point on the other side of the fixed ring (51) as the center connection line of the fixed ring (51) and the fixed end of the fixed curved rod (54) in the opposite arc direction with the first fixed curved rod (54) with the diameter of the fixed ring (51) as the symmetry axis and the projection point on the other side of the fixed ring (51) as the radial line away from the center of the circle. The fixed ring (51) and the cam ring (52) are provided with matching through holes, and the positioning pin (53) passes through the two through holes for positioning.

5. The hydraulic support protection device for a mine chute belt conveyor foundation according to claim 1 is characterized in that: The side pneumatic support rod (4) is a telescopic two-section rod, and an air chamber is provided at the connection between the two sections of the pneumatic support rod, and the air chamber is provided with a small hole communicating with the outside world.

Images