CN213478359U

CN213478359U - Small-angle free swing structure and mine supporting column

Info

Publication number: CN213478359U
Application number: CN202022683889.1U
Authority: CN
Inventors: 王文徐; 董国红
Original assignee: Yichang Ruijiada Trading Co ltd
Current assignee: Yichang Ruijiada Trading Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-06-18
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a small-angle free swing structure, which comprises a fixed part, a swing part and an installation nail; the mounting nail comprises a nail cap and a nail column; the swinging piece is of a structure that a spherical groove is punched in the center of a flat plate, a mounting hole for allowing the nail post to pass through but not allowing the nail cap to pass through is formed in the bottom end of the spherical groove, and the aperture of the mounting hole is larger than the outer diameter of the nail post; the nail post is fixedly connected with the fixed piece, so that the interval between the nail cap and the fixed piece is larger than the thickness of the swinging piece. The application also discloses a mine supporting column using the small-angle free swing structure, and the fixing part is a heightening cylinder. The angle between swing piece and the mounting can freely change within a certain range by the small-angle free swing mechanism, so that the orientation of the swing piece can change along with the rock wall at the top of a mine, the contact area of a support column and rock using the structure is increased, the stress direction of the rock is adjusted, and the supporting effect is improved.

Description

Small-angle free swing structure and mine supporting column

Technical Field

The utility model relates to a mine supporting equipment field, concretely relates to mine pillar.

Background

In the process of mining, often need use the pillar that supports mine roof rock mass, nevertheless because the rock shape is irregular, the minimum of rock is also very difficult to select to the strong point, leads to the contact position and the area of contact of rock and pillar to guarantee, and the pillar that aims at the rock inclined plane is because the restriction of rock atress direction, and the support effect will be very poor.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a free swing structure of small-angle and mine pillar.

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

a small-angle free swinging structure comprises a fixed part, a swinging part and a mounting nail; the mounting nail comprises a nail cap and a nail column; the swing piece is of a structure that a spherical groove is punched in the center of a flat plate, a mounting hole for allowing the nail post to pass through but not allowing the nail cap to pass through is formed in the bottom end of the spherical groove, and the aperture of the mounting hole is larger than the outer diameter of the nail post; the nail post is fixedly connected with the fixing piece, so that the distance between the nail cap and the fixing piece is larger than the thickness of the swinging piece.

The application also discloses a mine supporting column using the small-angle free swing structure, and the fixing piece is a height increasing cylinder.

The aperture of the mounting hole is larger than the outer diameter of the nail post, so that the swinging piece can move in a certain range relative to the mounting nail, and meanwhile, a space for free swinging is reserved for the swinging piece by the space between the nail cap and the fixing piece. The sphere is contradicted the top surface of mounting, and when making the swing piece orientation in certain angle range, the contact of the two and atress direction are just right, at this moment as long as make swing piece and rock not have relative displacement, just can make the rock receive effectual support.

The mine support pillar comprises a base, a height adjusting mechanism and a height increasing barrel, and the distance between the height increasing barrel and the base is adjusted through the height adjusting mechanism, so that the top end of the base extrudes the rock wall at the top of a mine to further play a supporting role.

Compared with the prior art, the utility model discloses following beneficial effect has:

the angle between swing piece and the mounting can freely change within a certain range by the small-angle free swing mechanism, so that the orientation of the swing piece can change along with the rock wall at the top of a mine, the contact area of a support column and rock using the structure is increased, the stress direction of the rock is adjusted, and the supporting effect is improved.

Drawings

Fig. 1 is the utility model discloses a structural schematic of mine pillar.

Fig. 2 is a schematic structural diagram of a swinging member according to an embodiment of the present invention.

In the above drawings: 1. a swinging member; 2. a nail cap; 3. nailing columns; 4. mounting holes; 5. a heightening cylinder; 6. a base; 7. lifting the seat; 8. a flat bearing; 9. a screw; 10. a reinforcement cylinder; 11. a limiting sleeve; 12. a stabilizing cylinder; 13. a rotating rod; 14. and (4) anti-skid claws.

Detailed Description

As shown in fig. 1, the embodiment of the present invention discloses a small angle free swing structure, which comprises a fixed part, a swing part 1 and a mounting nail; the mounting nail comprises a nail cap 2 and a nail column 3; the swing piece 1 is of a structure that a spherical groove is punched in the center of a flat plate, a mounting hole 4 for allowing the nail post 3 to pass through but not allowing the nail cap 2 to pass through is formed in the bottom end of the spherical groove, and the aperture of the mounting hole 4 is larger than the outer diameter of the nail post 3; the nail post 3 is fixedly connected with the fixing piece, so that the interval between the nail cap 2 and the fixing piece is larger than the thickness of the swinging piece 1.

The embodiment of the utility model provides a mine pillar is still disclosed, include small-angle free swing structure, the mounting is for increasing a section of thick bamboo 5.

The angle between swing member 1 and the mounting can freely change within a certain range by the small-angle free swing mechanism, so that the orientation of swing member 1 can change along with the rock wall at the top of the mine, the contact area of the support column and the rock is increased, the stress direction of the rock is adjusted, and the support effect is improved.

Preferably, the top end of the heightening barrel 5 is in threaded connection with the stud 3. The limit angle of the swinging piece 1 can be adjusted within a certain limit by adjusting the distance between the nail cap 2 of the mounting nail and the heightening barrel 5.

Preferably, the mine post further comprises:

a base 6;

the screw rod 9 is vertically fixed at the center of the top surface of the base 6;

lifting seat 7, including bottom and top layer, install flat bearing 8 between bottom and top layer, bottom and 9 threaded connection of screw rod, it cup joints on screw rod 9 and increases a 5 bottom conflict top layer top surfaces to increase a section of thick bamboo 5.

The combination of the screw rod 9 and the lifting seat 7 is selected instead of selecting the air cylinder as a common support column, so that the safety accidents of slippage, unstable support and the like of a height adjusting mechanism caused by air cylinder faults are effectively reduced. The extrusion force that lifting seat 7 received in the support process not only can not make height adjustment mechanism inefficacy, has increased the frictional force between lifting seat 7 and the screw rod 9 on the contrary, makes the pillar more stable.

Preferably, a reinforcing cylinder 10 is fixed at the center of the top surface of the base 6, and the screw 9 extends into the reinforcing cylinder 10 and is fixedly connected with the base 6 and the reinforcing cylinder 10. If the screw rod 9 is directly welded on the base 6 and only the welding point is used for bearing force, the screw rod is likely to fail and break when being subjected to transverse acting force. The reinforcing cylinder 10 is additionally arranged, so that the connection mode of the screw 9 and the base 6 is effectively improved, the conduction and dispersion of acting force between the screw and the base are facilitated, and the service life of the support column is prolonged.

Preferably, a limiting sleeve 11 is fixed at the top end of the screw 9, and the limiting sleeve 11 is used for limiting the rising height of the lifting seat 7. The stop collar 11 limits the movable range of the lifting seat 7 in the screw rod 9, so that the accidents that the lifting seat 7 is separated from the screw rod 9 and the heightening barrel 5 is turned over to smash a person due to the fact that the supporting height is too high and an operator does not pay attention to the fact are avoided.

Preferably, the lifting seat 7 is fixed with at the top surface center and overlaps and establish a stable section of thick bamboo 12 on the screw rod 9, a stable section of thick bamboo 12 stretches into and increases a section of thick bamboo 5 and with increasing a section of thick bamboo 5 inner wall laminating. The shaking of the heightening barrel 5 in the lifting process is reduced, and the operation is more stable.

Preferably, a rotating rod 13 or a diameter increasing disc is fixed on the outer side surface of the bottom layer. The arm of force is increased, and the operation is convenient. Compared with the diameter increasing disc, the rotating rod 13 is simpler in structure, saves materials and occupies space, and can even find a steel pipe sleeve to further increase the force arm when the strength of an operator is insufficient.

Preferably, the screw 9 has a trapezoidal thread cross section. Trapezoidal thread is more not fragile, and the thread top surface also more tends to the level, makes the gravity that increases a section of thick bamboo 5 and the extrusion force between equipment and the rock can more turn into the pressure between screw rod 9 and the lifting seat 7 and then improve the frictional force between the two, makes to support more stably.

Preferably, the swing member 1 has a non-slip claw 14 or an elastic friction pad fixed to a top surface thereof. Ensuring that the oscillating piece 1 does not displace from the rock during the supporting process.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a small-angle free swing structure which characterized in that: comprises a fixed part, a swinging part and a mounting nail; the mounting nail comprises a nail cap and a nail column; the swing piece is of a structure that a spherical groove is punched in the center of a flat plate, a mounting hole for allowing the nail post to pass through but not allowing the nail cap to pass through is formed in the bottom end of the spherical groove, and the aperture of the mounting hole is larger than the outer diameter of the nail post; the nail post is fixedly connected with the fixing piece, so that the distance between the nail cap and the fixing piece is larger than the thickness of the swinging piece.

2. A mine support post is characterized in that: the small angle free swinging structure of claim 1, wherein the fixing part is a heightening barrel.

3. The mine support post of claim 2, wherein: the top end of the heightening cylinder is in threaded connection with the nail post.

4. A mine support post as claimed in claim 2 or claim 3, further comprising:

a base;

the screw rod is vertically fixed in the center of the top surface of the base;

lifting seat, including bottom and top layer, install flat bearing between bottom and top layer, bottom and screw rod threaded connection, it connects on the screw rod and increases a section of thick bamboo bottom conflict top layer top surface to increase a section of thick bamboo cup joint.

5. The mine support post of claim 4, wherein: a reinforcing cylinder is fixed at the center of the top surface of the base, and the screw rod extends into the reinforcing cylinder and is fixedly connected with the base and the reinforcing cylinder.

6. The mine support post of claim 5, wherein: and a limiting sleeve is fixed at the top end of the screw rod and used for limiting the rising height of the lifting seat.

7. The mine support post of claim 4, wherein: the lifting seat top surface center is fixed with the cover and establishes a stable section of thick bamboo on the screw rod, a stable section of thick bamboo stretches into and increases a section of thick bamboo and with increasing a section of thick bamboo inner wall laminating.

8. The mine support post of claim 4, wherein: and a rotating rod or a diameter increasing disc is fixed on the outer side surface of the bottom layer.

9. The mine support post of claim 4, wherein: the thread section of the screw is trapezoidal.

10. The mine support post of claim 2, wherein: and the top surface of the swinging piece is fixed with an anti-skid claw or an elastic friction pad.