Mining air pump for underground roadway drainage

Abstract

The utility model relates to the technical field of drainage pump structures, in particular to a mining air pump for underground roadway drainage. According to the technical scheme, the device comprises a base plate, a pneumatic pump, an oil duct, a cavity and a column cavity, a base plate is installed at the bottom end of the outer wall of the pneumatic pump, pistons are installed on the lower surface of the base plate at equal intervals, the pistons are slidably inserted into the column cavity of the base plate, the cavity is formed in the base plate and communicated with the column cavity through the oil duct, and the oil duct is arranged in the cavity. And sliding blocks are symmetrically, elastically and slidably arranged in the cavity. Through cooperation of structures and mutual cooperation of spring vibration attenuation and damping vibration attenuation, the vibration attenuation effect of the pneumatic pump is greatly improved, and working vibration and noise of the pneumatic pump are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pump structures, in particular to an air pump for underground tunnel drainage mining. Background Art

[0002] A pneumatic pump is a device that drives the pump body to work according to the change of air pressure. However, due to the unstable gas supply and the fluctuation of gas source pressure, the output capacity of the pneumatic pump is somewhat unstable.

[0003] The operation of pneumatic pumps will generate certain noise and vibration. Since pneumatic pumps are driven by compressed air, the working noise and vibration intensity will be relatively large when the pneumatic pump is running, which may cause certain interference and harm to the production site, especially inside the mine, because of the limited space and the wide range of vibration propagation, which is easy to cause safety hazards.

[0004] For this reason, we propose an underground tunnel drainage mining air pump to solve the existing problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes an air pump for underground tunnel drainage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underground tunnel drainage mining air pump, comprising a chassis, a pneumatic pump, an oil channel, a cavity and a column cavity, a pad is installed at the bottom end of the outer wall of the pneumatic pump, and pistons are equidistantly installed on the lower surface of the pad, and each piston is slidably inserted in the column cavity of the chassis, a cavity is opened on the chassis, and the cavity and the column cavity are interconnected by an oil channel, and a slider is symmetrically and elastically slidably provided inside the cavity.

[0007] Preferably, an external spring is movably sleeved on the piston, and the external spring is located between the backing plate and the chassis.

[0008] Preferably, a rubber sealing structure is provided on the contact surface between the slider and the cavity;

[0009] An inner spring is installed between the two sliders, and the original length of the inner spring is equal to the length of the cavity.

[0010] Preferably, a feeding port is provided at the lower end of the inner wall of the column cavity, and a sealing cap is threadedly mounted at the opening of the feeding port.

[0011] Preferably, a support seat is installed on the lower surface of the chassis;

[0012] There are four support seats in total, and the positions of the four support seats are distributed in a rectangular array on the lower surface of the chassis.

[0013] Preferably, a connector is provided at the tail end of the pneumatic pump, a water suction port is provided at the head of the pneumatic pump, and a drainage port is provided at the top of the pneumatic pump.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] During the use of the utility model underground tunnel drainage mining air pump, the device can be installed at a designated position of the underground tunnel, and connected to an external compressed air source to enable the pneumatic pump to work and perform drainage operations;

[0016] When the pneumatic pump is working, the vibration generated by the pneumatic pump is transmitted to the piston, thereby driving the piston to move back and forth in the column cavity. At this time, the outer spring absorbs the vibration and plays a role in buffering, reducing vibration and noise.

[0017] At the same time, the piston presses the oil in the column cavity to reciprocate through the oil channel into the cavity. In this process, the oil repeatedly passes through the column cavity, the oil channel, and the cavity. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, so that the vibration energy is converted into oil heat energy, which is then absorbed by the shell and dissipated into the atmosphere;

[0018] During this process, when the oil enters the cavity, it presses the two sliders closer to each other, and the oil is squeezed back into the column cavity under the potential energy of the inner spring;

[0019] The utility model greatly improves the vibration reduction effect of the pneumatic pump and reduces the working vibration and noise of the pneumatic pump through the mutual cooperation between the spring vibration reduction and the damping vibration reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the chassis of the utility model;

[0022] Figure 3 For the utility model Figure 2 Schematic diagram of the cross-sectional structure.

[0023] Reference numerals:

[0024] 1. Chassis; 2. Support seat; 3. Pad; 4. Connector; 5. Pneumatic pump; 6. Drain port; 7. Pump port; 8. Cover; 9. Adding port; 10. Piston; 11. Oil channel; 12. Slider; 13. Cavity; 14. Inner spring; 15. Column cavity; 16. Outer spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] like Figure 1-Figure 3 As shown, the underground tunnel drainage mining air pump proposed by the utility model includes a chassis 1, a pneumatic pump 5, an oil channel 11, a cavity 13 and a column cavity 15. A pad 3 is installed at the bottom end of the outer wall of the pneumatic pump 5, and pistons 10 are equidistantly installed on the lower surface of the pad 3. Each piston 10 is slidably inserted in the column cavity 15 of the chassis 1. A cavity 13 is opened on the chassis 1, and the cavity 13 and the column cavity 15 are interconnected through the oil channel 11. A slider 12 is symmetrically and elastically slidably provided inside the cavity 13.

[0028] Based on Example 1:

[0029] During the use of the utility model underground tunnel drainage mining air pump, the device can be installed at a designated position in the underground tunnel, and connected to an external compressed air source to enable the pneumatic pump 5 to work and perform drainage operations;

[0030] When the pneumatic pump 5 is working, the vibration generated by the pneumatic pump 5 is transmitted to the piston 10, thereby driving the piston 10 to move back and forth in the column cavity 15. At this time, the outer spring 16 absorbs the vibration, which plays a role in buffering, reducing vibration and noise. At the same time, the piston 10 presses the oil in the column cavity 15 to reciprocate through the oil channel 11 into the cavity 13. In this process, the oil repeatedly passes through the column cavity 15, the oil channel 11, and the cavity 13. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, so that the vibration energy is converted into oil heat energy, which is then absorbed by the shell and dissipated into the atmosphere.

[0031] During this process, when the oil enters the cavity 13 , it presses the two sliders 12 to move closer to each other, and the oil is squeezed back into the column cavity 15 under the potential energy of the inner spring 14 .

[0032] Embodiment 2

[0033] like Figure 1-Figure 3 As shown, the underground tunnel drainage mining air pump proposed by the utility model, compared with the first embodiment, this embodiment also includes:

[0034] The tail end of the pneumatic pump 5 is provided with a connector 4, the head of the pneumatic pump 5 is provided with a water suction port 7, and the upper part of the pneumatic pump 5 is provided with a drainage port 6. The device can be installed at a designated position in an underground tunnel and connected to an external compressed air source to enable the pneumatic pump 5 to work and perform drainage operations.

[0035] An outer spring 16 is movably sleeved on the piston 10. The outer spring 16 is located between the backing plate 3 and the chassis 1. The outer spring 16 absorbs vibrations and has the effect of buffering, reducing vibration and reducing noise.

[0036] A rubber sealing structure is provided on the contact surface between the slider 12 and the cavity 13;

[0037] An inner spring 14 is installed between the two sliders 12. The original length of the inner spring 14 is equal to the length of the cavity 13. When the oil enters the cavity 13, the two sliders 12 are pressed closer to each other, and the oil is squeezed back into the column cavity 15 under the potential energy of the inner spring 14.

[0038] A filling port 9 is provided at the lower end of the inner wall of the column cavity 15 , and a sealing cap 8 is threadedly mounted at the opening of the filling port 9 , so that the oil in the column cavity 15 can be supplemented through the filling port 9 .

[0039] A support seat 2 is installed on the lower surface of the chassis 1;

[0040] There are four support bases 2 in total, and the positions of the four support bases 2 are distributed in a rectangular array on the lower surface of the chassis 1.

[0041] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An air pump for underground tunnel drainage mining, comprising a chassis (1), a pneumatic pump (5), an oil channel (11), a cavity (13) and a column cavity (15), characterized in that: A pad (3) is installed at the bottom end of the outer wall of the pneumatic pump (5), and pistons (10) are installed equidistantly on the lower surface of the pad (3). Each piston (10) is slidably inserted into a column cavity (15) of the chassis (1). A cavity (13) is opened on the chassis (1), and the cavity (13) and the column cavity (15) are connected to each other through an oil channel (11). A slider (12) is symmetrically and elastically slidably provided inside the cavity (13).

2. The underground tunnel drainage mining air pump according to claim 1, characterized in that: An external spring (16) is movably sleeved on the piston (10), and the external spring (16) is located between the pad (3) and the chassis (1).

3. The underground tunnel drainage mining air pump according to claim 1, characterized in that: A rubber sealing structure is provided on the contact surface between the slider (12) and the cavity (13); An inner spring (14) is installed between the two sliders (12), and the original length of the inner spring (14) is equal to the length of the cavity (13).

4. The underground tunnel drainage mining air pump according to claim 1, characterized in that: The lower end of the inner wall of the column cavity (15) is provided with a filling port (9), and a sealing cover (8) is threadedly mounted at the opening of the filling port (9).

5. The underground tunnel drainage mining air pump according to claim 1 is characterized in that: A support seat (2) is installed on the lower surface of the chassis (1); There are four support seats (2) in total, and the positions of the four support seats (2) are distributed in a rectangular array on the lower surface of the chassis (1).

6. The underground tunnel drainage mining air pump according to claim 1, characterized in that: The tail end of the pneumatic pump (5) is provided with a connector (4), the head of the pneumatic pump (5) is provided with a water suction port (7), and the upper part of the pneumatic pump (5) is provided with a water discharge port (6).

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