Mining efficient double-cavity gas sampling pump

Abstract

The utility model relates to the technical field of gas sampling pumps, and provides a mining efficient double-cavity gas sampling pump which comprises a pump body support, a double-end motor is arranged in the middle of a bottom plate of the pump body support, and two ends of the double-end motor are respectively provided with a cavity. Two symmetrically arranged air pumps and a flywheel for driving the two air pumps are arranged in the cavity; the air pump is respectively connected with the air inlet, the air outlet and the air pressure meter through pipelines; according to the utility model, the double-end motor is adopted and matched with the flywheel structure to simultaneously drive four air pumps, so that the sampling efficiency is improved, and the problem that the whole set of equipment is shut down when one sampling point goes wrong can be avoided. The flywheels are of symmetrical fan-shaped structures, and the flywheels on the two sides are always kept in central symmetry, so that different states of the air cylinders on the same side in the first cavity and the second cavity are ensured, and the problem of eccentric vibration is avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of gas sampling pumps, in particular to a high-efficiency double-cavity gas sampling pump for mining. Background technology:

[0002] The gas sampling pump is a device used to collect various gas samples in the air. It is mainly used in environmental monitoring, industrial production, scientific research and other fields. The gas environment in the mine is complex, and dust, explosive gas, toxic gas, etc. can cause great harm to personal safety. By sampling the gas environment, understanding the actual gas environment at a specific location underground, and taking timely risk avoidance and harm reduction measures, the probability of personal injury will be greatly reduced, and property losses will be minimized as much as possible.

[0003] At present, most sampling pumps are single-channel sampling pumps with one machine and one pump, one inlet and one outlet. Once damage occurs, the equipment has to be shut down, and the working efficiency is low. Utility model content:

[0004] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model intends to provide a high-efficiency, single-power-source, multi-channel, high-efficiency double-chamber gas sampling pump for mining.

[0005] To achieve the above-mentioned purpose, the utility model provides a high-efficiency double-chamber gas sampling pump for mining, comprising a pump body bracket, a double-headed motor is arranged in the middle of the bottom plate of the pump body bracket, a chamber is arranged at each end of the double-headed motor, and two symmetrically arranged air pumps and a flywheel for driving the two air pumps are arranged in the chamber;

[0006] The output shafts of the double-headed motors are connected to the flywheels through couplings, and each flywheel drives two symmetrically arranged air pumps simultaneously through the connected eccentric shafts; the air pumps are connected to the air inlet, the air outlet, and the pressure gauge through pipelines.

[0007] Furthermore, the air pump is a reciprocating piston pump, the piston rod end of the reciprocating piston pump is hinged to one end of a swinging arm that can swing, and the other end of the swing arm is hinged to the eccentric shaft.

[0008] Furthermore, the flywheel includes a fan-shaped structure that is symmetrical on both sides, the middle part of the flywheel is a connecting part that fixes the two fan-shaped structures together, the connecting part of the flywheel is fixedly connected with a switching shaft, and the switching shaft is connected to the output shaft of the double-headed motor through a coupling.

[0009] Furthermore, the chambers arranged at both ends of the double-headed motor are respectively the first chamber and the second chamber; the air pumps arranged in the first chamber are the first air pump and the second air pump; the air pumps arranged in the second chamber are the third air pump and the fourth air pump; the first air pump and the fourth air pump have the same suction and exhaust state, and the second air pump and the third air pump have the same suction and exhaust state.

[0010] Furthermore, the barometer includes barometer 1 for measuring negative pressure and barometer 2 for measuring positive pressure; the air inlet end of the air pump is connected to barometer 1 and the air inlet through a three-way pipe; the air outlet end of the air pump is connected to barometer 2 and the air outlet through a three-way pipe.

[0011] Furthermore, filters are connected to the outside of the air inlet and the outside of the air outlet.

[0012] The beneficial effects of the utility model are as follows: the utility model adopts a double-headed motor and cooperates with a flywheel structure to drive four air pumps at the same time, thereby improving the sampling efficiency and avoiding the problem of a problem at one sampling point causing the whole set of equipment to shut down. The flywheel adopts a symmetrical fan-shaped structure, and the flywheels on both sides always maintain central symmetry, thus ensuring that the states of the cylinders on the same side of the first chamber and the second chamber are different in frequency, avoiding the problem of eccentric vibration. Description of the drawings:

[0013] Attached Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0014] Attached Figure 2 It is a main structural schematic diagram of the utility model;

[0015] Attached Figure 3 It is a rear view structural schematic diagram of the utility model;

[0016] Attached Figure 4 It is a schematic diagram of the structure of the first chamber and the second chamber of the utility model;

[0017] Attached Figure 5 It is a structural schematic diagram of the gas flow direction of the utility model;

[0018] Attached Figure 6 It is a structural schematic diagram of the flywheel of the utility model;

[0019] In the accompanying drawings: 1. barometer 1, 2. barometer 2, 3. first chamber, 4. second chamber, 5. air outlet, 6. air inlet, 7. filter, 8. double-headed motor, 901. flywheel 1, 902. flywheel 2, 1001. first air pump, 1002. second air pump, 1101. third air pump, 1102. fourth air pump, 12. coupling 2, 13. coupling 1, 14 piston. Specific implementation method:

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in more detail below in conjunction with the accompanying drawings of the present invention.

[0021] In the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] As attached Figure 1-6 As shown, the utility model provides a high-efficiency double-chamber gas sampling pump for mining, including a pump body bracket, a double-headed motor 8 is arranged in the middle of the bottom plate of the pump body bracket, and a chamber is arranged at each end of the double-headed motor 8, and two symmetrically arranged air pumps and a flywheel for driving the two air pumps are arranged in the chamber;

[0024] The output shafts of the double-headed motor 8 are connected to the flywheels through couplings, and each flywheel drives two symmetrically arranged air pumps simultaneously through the connected eccentric shaft; the air pumps are connected to the air inlet 6, the air outlet 5, and the pressure gauge through pipelines.

[0025] The air pump is a reciprocating piston pump, the piston rod end of the reciprocating piston pump is hinged to one end of a swing arm that can swing, and the other end of the swing arm is hinged to the eccentric shaft.

[0026] The flywheel includes a fan-shaped structure that is symmetrical on both sides. The middle part of the flywheel is a connecting part that fixes the two fan-shaped structures together. The connecting part of the flywheel is fixedly connected with a switching shaft, and the switching shaft is connected to the output shaft of the double-headed motor 8 through a coupling.

[0027] The chambers arranged at both ends of the double-headed motor 8 are respectively the first chamber 3 and the second chamber 4; the air pumps arranged in the first chamber 3 are the first air pump 1001 and the second air pump 1002; the air pumps arranged in the second chamber 4 are the third air pump 1101 and the fourth air pump 1102; the first air pump 1001 and the fourth air pump 1102 have the same suction and exhaust state, and the second air pump 1002 and the third air pump 1101 have the same suction and exhaust state.

[0028] The barometer includes a barometer 1 for measuring negative pressure and a barometer 2 for measuring positive pressure; the air inlet end of the air pump is connected to the barometer 1 and the air inlet 6 through a three-way pipe; the air outlet end of the air pump is connected to the barometer 2 and the air outlet 5 through a three-way pipe.

[0029] The outside of the air inlet 6 and the outside of the air outlet 5 are both connected with filters 7 .

[0030] In order to be used in mines, the utility model adopts a flameproof double-headed motor 8 as a power source, and an independent chamber is provided for the air pump in the pump body bracket. In order to achieve the effect of driving the airless pump at the same time, the output shaft at one end of the double-headed motor 8 is connected to the flywheel 1 901 through a coupling 13, and the output shaft at the other end is connected to the flywheel 2 902 through a coupling 2 12; an eccentric connection hole is respectively provided on the flywheel 1 901 and the flywheel 2 902, and an eccentric shaft is inserted into each connection hole in a fixed connection manner.

[0031] In order to ensure that no vibration is generated due to eccentric rotation during the sampling process when the double-headed motor 8 drives the air pump, the connecting holes on the flywheel 1 901 and the flywheel 2 902 are arranged to always maintain a centrally symmetrical state.

[0032] The chambers arranged at both ends of the double-headed motor 8 are respectively the first chamber 3 and the second chamber 4; the air pumps arranged in the first chamber 3 are the first air pump 1001 and the second air pump 1002; the air pumps arranged in the second chamber 4 are the third air pump 1101 and the fourth air pump 1102.

[0033] The air pump is a reciprocating piston pump, and the piston rod end of the reciprocating piston pump is hinged with a swing arm as a transition section, and the other end of the swing arm is hinged with the eccentric shaft, so that each eccentric shaft is hinged with two swing arms at the same time, and the two swing arms are arranged in parallel inside and outside without interfering with each other, and the swing arms are driven to swing and move forward and backward by the eccentric shaft, thereby driving the piston rod to move forward and backward, so as to complete the suction and exhaust action through the forward and backward movement of the piston 14. That is, the flywheel 1 901 drives the first air pump 1001 and the second air pump 1002 to inhale and exhaust, and the flywheel 2 902 drives the third air pump 1101 and the fourth air pump 1102 to inhale and exhaust.

[0034] Based on the relative position setting of the connecting holes on flywheel 1 901 and flywheel 2 902 , the first air pump 1001 and the fourth air pump 1102 have the same suction and exhaust state, and the second air pump 1002 and the third air pump 1101 have the same suction and exhaust state.

[0035] In order to facilitate the monitoring of the operating status of the equipment, a pressure gauge is also provided, which includes a pressure gauge 1 for measuring negative pressure and a pressure gauge 2 for measuring positive pressure; the air inlet end of the air pump is connected to the pressure gauge 1 and the air inlet 6 through a three-way pipe; the air outlet end of the air pump is connected to the pressure gauge 2 2 and the air outlet 5 through a three-way pipe.

[0036] Due to the complex underground environment, in order to improve the sampling accuracy as much as possible, the outside of the air inlet 6 and the outside of the air outlet 5 are both connected to filters 7.

[0037] The utility model adopts a double-headed motor 8 and a flywheel structure to drive four air pumps at the same time, which improves the sampling efficiency and can also avoid the problem of a problem at one sampling point causing the whole set of equipment to stop. The flywheel adopts a symmetrical fan-shaped structure, and the flywheels on both sides always maintain central symmetry, which ensures that the states of the cylinders on the same side of the first chamber 3 and the second chamber 4 are different in frequency, avoiding the problem of eccentric vibration.

[0038] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.

Claims

1. A high-efficiency double-chamber gas sampling pump for mining, characterized in that It comprises a pump body bracket, a double-headed motor (8) is arranged in the middle of the bottom plate of the pump body bracket, a chamber is arranged at each end of the double-headed motor (8), and two symmetrically arranged air pumps and a flywheel for driving the two air pumps are arranged in the chamber; The output shafts of the double-headed motor (8) are connected to the flywheels through couplings, and each flywheel drives two symmetrically arranged air pumps simultaneously through the connected eccentric shafts; the air pumps are connected to the air inlet (6), the air outlet (5), and the barometer through pipelines.

2. The sampling pump according to claim 1, characterized in that The air pump is a reciprocating piston pump, the piston rod end of the reciprocating piston pump is hinged to one end of a swing arm that can swing, and the other end of the swing arm is hinged to the eccentric shaft.

3. The sampling pump according to claim 1 or 2, characterized in that The flywheel comprises a fan-shaped structure that is symmetrical on both sides. The middle part of the flywheel is a connecting part that fixes the two fan-shaped structures together. The connecting part of the flywheel is fixedly connected to a switching shaft, and the switching shaft is connected to the output shaft of the double-headed motor (8) through a coupling.

4. The sampling pump according to claim 1 or 2, characterized in that The chambers arranged at both ends of the double-headed motor (8) are respectively a first chamber (3) and a second chamber (4); the air pumps arranged in the first chamber (3) are a first air pump (1001) and a second air pump (1002); the air pumps arranged in the second chamber (4) are a third air pump (1101) and a fourth air pump (1102); the first air pump (1001) and the fourth air pump (1102) have the same suction and exhaust state, and the second air pump (1002) and the third air pump (1101) have the same suction and exhaust state.

5. The sampling pump according to claim 1, characterized in that The barometer comprises a first barometer (1) for measuring negative pressure and a second barometer (2) for measuring positive pressure; the air inlet end of the air pump is connected to the first barometer (1) and the air inlet (6) through a three-way pipe; the air outlet end of the air pump is connected to the second barometer (2) and the air outlet (5) through a three-way pipe.

6. The sampling pump according to claim 1 or 5, characterized in that The outside of the air inlet (6) and the outside of the air outlet (5) are both connected to filters (7).

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