CN220059642U - Air quantity adjusting assembly for mine - Google Patents

Abstract

The utility model discloses an air quantity adjusting component for a mine, which comprises: the connecting ring is arranged around an air outlet of the mine return airway air cylinder, the connecting ring is communicated in the front-rear direction, the adjusting part is arranged in the connecting ring, the control part comprises a control rod connected with the adjusting part, the adjusting part is provided with a closing position and an opening position, and the control rod drives the adjusting part to move between the closing position and the opening position so as to adjust the air outlet of the air cylinder. According to the air quantity adjusting component for the mine, disclosed by the embodiment of the utility model, the air quantity of the air cylinder of the air return tunnel of the mine can be adjusted and controlled, and the operability of gas emission is improved; the air duct can be prevented from being damaged, and the multiplexing rate is improved.

Description

Air quantity adjusting assembly for mine

Technical Field

The utility model relates to the technical field of mine ventilation, in particular to an air quantity adjusting component for a mine.

Background

In mine ventilation networks, natural distribution of air volume often fails to meet the air volume requirements of the operation site, and therefore air volume needs to be adjusted. The adjusting range can be divided into local air volume adjustment and mine total air volume adjustment. The local air volume adjustment refers to air volume adjustment between working surfaces, mining areas or production levels in a mining industry. The adjusting method comprises a resistance increasing method, a resistance reducing method and an auxiliary ventilator adjusting method.

The resistance-increasing regulation method is to install a device such as a regulating air window in the roadway to increase the local resistance of the roadway, thereby reducing the air quantity in the same passage with the roadway or increasing the air quantity on the passage related to the roadway, and mainly comprises the regulating air window, a temporary air curtain, an air curtain regulating device and the like. This is the most common method of locally regulating the air volume used at present.

The drag reduction method is to reduce the ventilation resistance of the tunnel by adopting a drag reduction measure in the tunnel, thereby increasing the air quantity in the same passage with the tunnel or reducing the air quantity on the passage related to the tunnel. The method mainly comprises the steps of expanding the section of the tunnel, reducing the friction resistance coefficient, removing local resistance in the tunnel, adopting parallel air paths, shortening the total length of the air flow paths and the like.

The auxiliary fan adjusting method is to install a fan in the underground tunnel to increase the air quantity.

When the total air quantity of the mine (or one wing) is insufficient or excessive, the total air quantity needs to be regulated, namely the working point of the main ventilator is regulated. The usual measures taken are: changing the working characteristics of the main ventilator or changing the total wind resistance of the mine wind net. The working characteristics of the main ventilator are changed by changing the rotating speed of the impeller of the main ventilator, the mounting angle of the blades of the axial-flow fan, the angle of the blades of the front guide device of the centrifugal fan and the like.

In the prior art, the air outlet of the air duct of the air return roadway is regulated and controlled by adopting iron wires, so that the air leakage of the air duct is large in the use process, and when gas is discharged, a worker needs to slowly shrink the air duct opening by hands, and the air return roadway is accurate, rapid and unreliable. In addition, the iron wire binding air duct can damage the air duct, and the multiplexing rate is reduced.

Disclosure of Invention

The utility model aims to solve the problem that the air duct opening in the prior art is difficult to accurately and quickly regulate and control. Therefore, the utility model provides an air quantity adjusting component which can adjust and control the air quantity of the air duct of the mine air return tunnel, can not damage the air duct and improves the multiplexing rate.

In order to achieve the above purpose, the technical scheme adopted is as follows:

an air volume adjustment assembly for a mine, comprising: the connecting ring is arranged around the air outlet of the mine return airway air cylinder, the connecting ring is communicated in the front-back direction, the adjusting part is arranged in the connecting ring, and the control part comprises a control rod connected with the adjusting part; the control rod drives the adjusting part to move between the closing position and the opening position so as to adjust the air outlet quantity of the air duct.

Optionally, the adjusting part includes: the rotating shaft is rotatably arranged in the connecting ring, one end of the rotating shaft extends out of the connecting ring and is connected with the control rod, and the adjusting piece is coaxially arranged with the rotating shaft.

Optionally, the adjusting piece is circular, and the area of the adjusting piece is equal to the flow area of the air duct.

Optionally, the rotating shaft is perpendicular to the control rod; the control part also comprises a reversing piece, wherein the reversing piece is arranged between the control rod and the rotating shaft so as to transmit power to the rotating shaft.

Further, the reversing piece comprises a first bevel gear connected with the control rod and a second bevel gear connected with the rotating shaft, and the first bevel gear is meshed with the second bevel gear.

Optionally, the control part further comprises a handle, wherein the handle is connected with the control rod and drives the handle to move so as to drive the control rod to rotate.

Optionally, the air quantity adjusting assembly further includes: a sealing protrusion disposed within the connection ring; when the adjusting part is positioned at the closing position, the adjusting part is blocked with the sealing bulge.

Compared with the prior art, the air quantity adjusting component for the mine provided by the utility model is connected with the air duct in a matched manner through the connecting ring, so that the air duct is not damaged, the service life of the air duct is prolonged, the air leakage of the air duct is avoided at the connecting part of the air duct and the connecting ring, and the air leakage rate of the air duct is reduced by hundred meters. The control rod drives the adjusting part to move at the closing position and the opening position, and the control rod regulates and controls the opening degree of the adjusting part, so that the gas emission can be conveniently controlled, and the operability of gas emission is improved.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a structure of an air volume damper assembly for a mine according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of an air volume damper assembly according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a control part of an air volume adjusting assembly connected with a rotating shaft according to an embodiment of the present utility model.

Reference numerals:

an air volume adjusting unit 100; a connecting ring 1; an adjusting section 2; a rotation shaft 21; a regulating piece 22; a control unit 3; a control lever 31; a reversing element 32; a first bevel gear 321; the second bevel gear mesh 322.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An air volume damper assembly 100 for a mine according to an embodiment of the present utility model is described below with reference to fig. 1-3.

According to an embodiment of the present utility model, an air volume adjustment assembly 100 for a mine, the air volume adjustment assembly 100 includes: a connecting ring 1, an adjusting part 2 and a control part 3.

Specifically, the connecting ring 1 is arranged around the air outlet of the air duct of the mine air return channel, the connecting ring 1 is communicated in the front-rear direction, and the connecting ring 1 is matched with the air outlet of the air duct to be installed as shown in fig. 1 and 2, and the air of the air return channel sequentially flows through the air duct and the connecting ring 1. At least part of the connecting ring 1 can be arranged outside an air outlet of the air duct; the part of the connecting ring 1 can also be matched in the air duct; the connecting ring 1 can be also in butt joint with the air outlet of the air duct. The air quantity adjusting component 100 is connected with the air duct through the connecting ring 1 and the air outlet of the air duct in a matched mode, and the air duct is not damaged. The direction of wind flow through the wind tunnel and the connecting ring 1 is indicated by the arrow in fig. 1.

The adjusting portion 2 is provided in the connecting ring 1, and the control portion 3 includes a control lever 31 connected to the adjusting portion 2. The adjusting part 2 has a closed position and an open position, and the control rod 31 drives the adjusting part 2 to move between the closed position and the open position so as to adjust the air output of the air duct.

For example, as shown in fig. 2, the adjusting part 2 is fitted in the connecting ring 1, and when the adjusting part 2 is in the closed position, the adjusting part 2 closes the connecting ring 1 so that wind cannot be discharged from the wind tunnel. The control lever 31 of the driving control part 3 is moved, so that the control lever 31 drives the adjusting part 2 to rotate, and the adjusting part 2 is moved from the closed position to the open position. When the adjusting part 2 is located at the open position, the adjusting part 2 can open the connecting ring 1, so that wind in the wind tunnel is discharged through the wind outlet and the connecting ring 1.

Wherein, through the rotation of control rod 31 regulation and control adjustment portion 2, can control adjustment portion 2 shelter from the flow area of adapter ring 1 to realize adjusting the air output. The through flow surface is a plane formed by the upper, lower, left and right aspects in fig. 2, and the through flow area is the ventilation area of the connecting ring 1. In other words, the adjusting portion 2 controls the opening degree of the door like the door by the lever 31 to achieve the adjustment of the air output. When the door is closed (the regulating part 2 is located at the closed position), the wind in the wind tunnel cannot be discharged, and when the door is opened, the wind in the wind tunnel can be discharged according to the degree of opening of the door.

In some examples, the manual actuation lever 31 is active. In other examples, the lever 31 is coupled to other machines, and the lever 31 is moved by the machine.

Therefore, according to the air quantity adjusting assembly 100 for the mine, disclosed by the embodiment of the utility model, the connecting ring 1 is connected with the air duct in a matched manner, so that the air duct is not damaged, the service life of the air duct is prolonged, the air duct and the connecting part of the connecting ring 1 are free from air leakage, and the hundred-meter air leakage rate of the air duct is reduced. The control rod 31 drives the adjusting part 2 to move between the closed position and the open position, and the control rod 31 regulates and controls the opening degree of the adjusting part 2, so that the gas emission can be conveniently controlled, and the operability of gas emission is improved.

In some embodiments of the present utility model, the adjusting part 2 includes: the rotating shaft 21 and the adjusting piece 22, the rotating shaft 21 is rotatably arranged in the connecting ring 1, one end of the rotating shaft 21 extends out of the connecting ring 1 to be connected with the control rod 31, that is, the rotating shaft 21 can rotate in the connecting ring 1, and the rotating shaft 21 can rotate relative to the connecting ring 1. One end of the rotating shaft 21 extends out of the connecting ring 1 to be connected with the control rod 31, so that the control rod 31 can drive the rotating shaft 21 to rotate.

The adjusting piece 22 is coaxially arranged with the rotating shaft 21, for example, as shown in fig. 2, the adjusting piece 22 is a thin piece, and the adjusting piece 22 and the rotating shaft 21 may be detachably connected or fixedly connected, which is not limited herein. The regulating piece 22 rotates with the rotation shaft 21 when the rotation shaft 21 rotates. The adjusting piece 22 rotates to adjust the opening degree of the connecting ring 1, thereby realizing the adjustment of the air output.

Alternatively, the adjusting piece 22 is circular, and the area of the adjusting piece 22 is equal to the flow area of the air duct. By setting the area of the regulating piece 22 equal to the flow area of the air duct, when the regulating part 2 is in the closed position, the regulating piece 22 can close the connecting ring 1, so that the wind in the air duct cannot be discharged through the connecting ring 1.

Alternatively, the rotation shaft 21 is disposed perpendicular to the control lever 31, and the control portion 3 further includes a reversing member 32, the reversing member 32 being disposed between the control lever 31 and the rotation shaft 21 to transmit power to the rotation shaft 21. As shown in fig. 3, the rotation shaft 21 and the control lever 31 are perpendicular to each other in a vertical plane, the control lever 31 extends in a horizontal direction, and the rotation shaft 21 extends in a vertical direction. The control rod 31 is driven to rotate, the control rod 31 rotates and then drives the reversing piece 32 to move, and the reversing piece 32 converts horizontal torque into vertical torque, so that the rotating shaft 21 rotates.

Further, as shown in fig. 3, the reversing element 32 includes a first bevel gear 321 connected to the control lever 31, and a second bevel gear connected to the rotation shaft 21, the first bevel gear 321 and the second bevel gear being engaged 322. The horizontal power can be converted into the vertical power by the first bevel gear 321 and the second bevel gear mesh 322 such that the power passes through the first bevel gear 321 and the second bevel gear.

In some embodiments of the present utility model, the control portion 3 further includes a handle, which is connected to the control lever 31, and drives the handle to move to rotate the control lever 31. Through fixed connection with handle and control rod 31 for rotating the handle and can driving control rod 31 rotation, thereby can drive pivot 21 rotation, thereby regulate and control the degree of opening of regulating plate 22, and then adjust the air output.

In some embodiments of the present utility model, the air volume adjustment assembly 100 further includes: a sealing projection provided in the coupling ring 1, with which the adjusting portion 2 abuts (not shown) when the adjusting portion 2 is in the closed position. The sealing bulges are arranged along the circumference of the connecting ring 1, the sealing bulges at the two sides of the rotating shaft 21 are staggered in the front-back direction, the staggered distance is the thickness of the regulating piece 22, namely, the two sealing bulges are arranged, the two sealing bulges are all semicircular, and the two sealing bulges are not connected. The arrangement is such that when the adjusting part 2 is in the closed position, the left and right parts of the adjusting piece 22 can respectively abut against the two sealing protrusions, so that no gap exists between the adjusting piece 22 and the connecting ring 1, and wind cannot leak out of the gap.

Air volume damper assemblies for mines and operation according to embodiments of the present utility model are well known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. The utility model provides an air regulation subassembly for mine, includes go-between, adjustment part and control portion, its characterized in that:

the connecting ring is arranged around the air outlet of the mine return airway air cylinder and is communicated in the front-rear direction; the control part comprises a control rod connected with the adjusting part, and the control rod drives the adjusting part to move between a closing position and an opening position so as to adjust the air output of the air duct;

the adjusting part comprises a rotating shaft and an adjusting piece, the rotating shaft is rotatably arranged in the connecting ring, and one end of the rotating shaft extends out of the connecting ring to be connected with the control rod; the adjusting piece is coaxially arranged with the rotating shaft and is provided with a closing position and an opening position.

2. The air volume damper assembly for mines according to claim 1, wherein said damper is circular, and the area of said damper is equal to the flow area of said air duct.

3. The air volume adjusting assembly for a mine shaft according to claim 1 or 2, wherein the rotating shaft is arranged perpendicular to the control lever;

the control part also comprises a reversing piece, wherein the reversing piece is arranged between the control rod and the rotating shaft so as to transmit power to the rotating shaft.

4. A blast volume regulating assembly for a mine as set forth in claim 3, wherein said reversing element comprises a first bevel gear connected to said control rod, and a second bevel gear connected to said rotary shaft, said first bevel gear and said second bevel gear being in meshing engagement.

5. The air volume damper assembly for mines according to claim 4, wherein said control portion further comprises a handle, said handle being connected to said control lever, said handle being driven to move to rotate said control lever.

6. The air volume damper assembly for mines according to claim 5, further comprising a sealing protrusion disposed within said collar, said damper portion being in said closed position, said damper portion being in abutment with said sealing protrusion.