An explosion-proof inclined plate piston open-type compressor unit of an integrated air conditioner in a coal mine underground

Abstract

The utility model provides a kind of explosion-proof inclined plate piston open-type compressor unit of underground coal mine integrated air conditioner, the compressor unit includes compressor, explosion-proof motor and coaxial connecting piece, compressor has V-type air inlet, exhaust port, and the outer end of connecting shaft is provided with convex connecting block;Explosion-proof motor is coaxial with compressor, and the front end of output shaft has matching concave groove, and convex connecting block is inserted to realize circumferential locking, and coaxial connecting piece is composed of sleeve, front and rear end plate, and is sleeved with connecting shaft and output shaft outside, and length prevents axial disengagement, and front end plate is connected with compressor, and rear end plate is connected with explosion-proof motor, and sleeve is provided with observation port for easy monitoring.The compressor unit is explosion-proof safe, power transmission is stable, installation and maintenance are convenient, and is suitable for underground coal mine integrated air conditioner.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning equipment in coal mines, and more specifically, to an explosion-proof inclined plate piston-type compressor unit for an integrated air conditioning system in coal mines. Background Technology

[0002] In the underground working environment of coal mines, there are flammable and explosive substances such as methane and coal dust, which places extremely high demands on the explosion-proof performance of electrical and power equipment. As a key piece of equipment for improving the underground working environment, the performance and explosion-proof safety of the compressor unit of an integrated underground air conditioning system directly affect the stable operation of the air conditioning system and the safety of underground workers.

[0003] Traditional compressor units present numerous unresolved problems when used in underground coal mines. Firstly, regarding explosion-proof performance, conventional motor-compressor connections, such as ordinary couplings, are prone to generating sparks during high-speed operation. Furthermore, the poor sealing of the connection structure allows flammable and explosive gases to easily intrude, potentially triggering an explosion upon contact with a spark, severely threatening underground safety.

[0004] Secondly, regarding the stability of power transmission, traditional connection methods cannot guarantee the coaxial alignment accuracy of the motor and compressor. During long-term operation, shaft deviation is prone to occur, leading to increased vibration of the compressor and motor. This not only reduces the operating efficiency of the equipment but also significantly shortens its service life, increases the probability of equipment failure and shutdown, and affects the continuous and stable cooling supply of the underground air conditioning system in coal mines.

[0005] Furthermore, the installation, maintenance, and repair of the compressor unit also present inconveniences. When installing the traditional structure in the confined space of the well, it is difficult to quickly and accurately achieve a reliable connection between the motor and the compressor. Moreover, during subsequent maintenance and inspection, it is difficult to visually monitor the condition of the connection points, increasing the difficulty and time cost of maintenance. Utility Model Content

[0006] Based on the above-mentioned technical problems, this utility model proposes an explosion-proof inclined plate piston opening compressor unit for an integrated air conditioner in coal mines.

[0007] An explosion-proof inclined plate piston-type compressor unit for an integrated air conditioner in underground coal mines includes: The compressor has an air inlet and an air outlet arranged in a V-shape, and a convex connecting block is provided at the outer end of its connecting shaft; An explosion-proof motor is coaxially aligned with the compressor. The front end of the output shaft of the explosion-proof motor is provided with a concave groove that matches the convex connecting block. The convex connecting block is inserted into the concave groove at the front end of the output shaft to achieve circumferential locking between the two. The coaxial connector is fixedly installed between the compressor and the explosion-proof motor, and is sleeved on the connecting shaft of the compressor and the output shaft of the explosion-proof motor. Its length ensures that the output shaft and the connecting shaft will not disengage and lock in the axial direction.

[0008] Furthermore, the coaxial connector consists of a sleeve, a front end plate, and a rear end plate; the front end plate and the rear end plate have through holes in their centers, and the two ends of the sleeve are respectively fixed in the through holes of the front end plate and the rear end plate, and the sleeve is sleeved on the outside of the output shaft and the connecting shaft.

[0009] Furthermore, the front end plate is fixedly connected to the compressor, and the rear end plate is fixedly connected to the explosion-proof motor.

[0010] Furthermore, the front and rear plates are provided with mounting holes, and the compressor housing and the explosion-proof motor housing are provided with screw holes at corresponding positions, so as to achieve a fixed connection by bolts.

[0011] Furthermore, the sleeve has an observation port in the middle, which corresponds to the connection between the output shaft and the connecting shaft.

[0012] Beneficial effects: 1. High explosion-proof safety: Through the circumferential locking connection between the convex connecting block of the compressor connecting shaft and the concave groove of the explosion-proof motor output shaft, combined with the motor with good explosion-proof performance and the protective effect of the coaxial connector, the generation of sparks and the intrusion of flammable and explosive gases at the connection point are effectively avoided, which greatly improves the operating safety of the compressor unit in the flammable and explosive environment of underground coal mines and reduces the risk of explosion accidents. 2. Stable and reliable power transmission: The coaxial alignment of the compressor and the explosion-proof motor, as well as the firm connection and positioning of the coaxial connectors, ensures the linearity and stability of power transmission, reduces vibration and energy loss caused by shaft deviation, makes the compressor unit run more smoothly and efficiently, improves the compressor's working efficiency and output power, extends the service life of the equipment, reduces the probability of equipment failure and downtime, and ensures the continuous and stable cooling supply of the integrated air conditioning system in the coal mine. 3. Convenient installation and maintenance: The front-end plate is connected to the compressor and the rear-end plate is connected to the explosion-proof motor by bolts, which makes the installation of the compressor unit in the confined space of the coal mine easier and faster, and makes it easier to achieve accurate coaxial alignment. The observation port design in the middle of the sleeve allows maintenance personnel to easily monitor the connection status of the output shaft and the connecting shaft, promptly detect potential problems and carry out maintenance, without the need for frequent disassembly of the equipment, which greatly shortens maintenance time and costs, and improves the maintainability and operation and maintenance efficiency of the equipment. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 A schematic diagram of the compressor structure is shown; Figure 3 A schematic diagram of the coaxial connector is shown. In the attached diagram, 1 is the compressor, 11 is the air inlet, 12 is the exhaust port, 2 is the explosion-proof motor, 3 is the coaxial connector, 31 is the sleeve, 32 is the front end plate, 33 is the rear end plate, 34 is the mounting hole, 35 is the observation port, 4 is the connecting shaft, 5 is the connecting block, 6 is the output shaft, 7 is the concave groove, and 8 is the screw hole. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] like Figures 1-3 The explosion-proof inclined plate piston-type compressor 1 of an integrated air conditioner for underground coal mines shown consists of three parts: compressor 1, explosion-proof motor 2, and coaxial connector 3.

[0016] As the core working component of the compressor unit, compressor 1 has an air inlet 11 and an exhaust port 12 arranged in a V-shape. This V-shaped layout is conducive to optimizing the refrigerant's entry and exit flow and improving compression efficiency. The outer end of its connecting shaft 4 is provided with a convex connecting block 5. This convex connecting block 5 is a key structure for connecting and locking with the output shaft 6 of the explosion-proof motor 2. It is used to transmit power and drive compressor 1 to perform piston compression operation, compress the refrigerant, and provide power for the air conditioning refrigeration cycle.

[0017] The explosion-proof motor 2 is the power source for the compressor 1 group. It is coaxially aligned with the compressor 1 to ensure the linearity and stability of power transmission and avoid additional vibration and energy loss caused by shaft misalignment. The output shaft 6 of the explosion-proof motor 2 has a concave groove 7 at the front end that matches the convex connecting block 5. When the convex connecting block 5 is inserted into the concave groove 7 at the front end of the output shaft 6, the two are circumferentially locked, so that the rotation of the motor can be directly and reliably transmitted to the connecting shaft 4 of the compressor 1 to drive the compressor 1 to operate. The explosion-proof motor 2 itself has good explosion-proof performance, which can effectively prevent electric sparks generated inside the motor from igniting flammable and explosive gases in the well, ensuring the safety of underground operations.

[0018] The coaxial connector 3 is fixedly installed between the compressor 1 and the explosion-proof motor 2, serving multiple functions of connection, positioning, and protection. It consists of a sleeve 31, a front plate 32, and a rear plate 33. The front plate 32 and the rear plate 33 have through holes in their centers. The two ends of the sleeve 31 are fixed to the through holes of the front and rear plates 33 by welding. The sleeve 31 is fitted on the outside of the output shaft 6 and the connecting shaft 4, forming a relatively closed space to protect the connecting shaft 4 of the compressor 1 and the output shaft 6 of the explosion-proof motor 2, while ensuring their coaxiality.

[0019] Installation and Fixing: The front end plate 32 is connected and fixed to the compressor 1, and the rear end plate 33 is connected and fixed to the explosion-proof motor 2. Specifically, the front end plate 32 and the rear end plate 33 are provided with mounting holes 34, and the compressor 1 housing and the explosion-proof motor 2 housing are provided with screw holes 8 at corresponding positions. By passing bolts through the mounting holes 34 and engaging with the screw holes 8, a firm connection is achieved between the front end plate 32 and the compressor 1, and between the rear end plate 33 and the explosion-proof motor 2. This stably connects the compressor 1 and the explosion-proof motor 2 into a whole, ensuring that there will be no relative displacement during operation and guaranteeing the stability of power transmission.

[0020] Features: Its length ensures that the output shaft 6 and the connecting shaft 4 will not disengage and lock in the axial direction. Even under long-term high-speed operation and vibration environment, it can reliably maintain the connection between the compressor 1 and the explosion-proof motor 2, avoiding equipment failure due to axial disengagement. In addition, the sleeve 31 is provided with an observation port 35 in the middle, which corresponds to the connection between the output shaft 6 and the connecting shaft 4. This allows maintenance personnel to directly observe the connection status of the output shaft 6 and the connecting shaft 4 without disassembling the coaxial connector 3, such as whether there is wear or loosening. This facilitates timely detection of problems and maintenance, greatly improving the convenience and efficiency of equipment maintenance.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An explosion-proof inclined plate piston-type compressor unit for an integrated air conditioner in underground coal mines, characterized in that, include: The compressor (1) is provided with an air inlet (11) and an exhaust outlet (12) in a V-shape, and a convex connecting block (5) is provided at the outer end of its connecting shaft (4). An explosion-proof motor (2) is coaxially aligned with the compressor (1). The output shaft (6) of the explosion-proof motor (2) has a concave groove (7) that matches the convex connecting block (5) at its front end. The convex connecting block (5) is inserted into the concave groove (7) at the front end of the output shaft (6) to achieve circumferential locking between the two. The coaxial connector (3) is fixedly installed between the compressor (1) and the explosion-proof motor (2), and is sleeved on the connecting shaft (4) of the compressor (1) and the output shaft (6) of the explosion-proof motor (2). Its length ensures that the output shaft (6) and the connecting shaft (4) will not be locked in the axial direction.

2. The explosion-proof inclined plate piston-opening compressor unit of the integrated air conditioner for underground coal mines according to claim 1, characterized in that, The coaxial connector (3) consists of a sleeve (31), a front end plate (32) and a rear end plate (33); the front end plate (32) and the rear end plate (33) have through holes in their centers, and the two ends of the sleeve (31) are fixed in the through holes of the front and rear end plates (33) respectively. The sleeve (31) is sleeved on the outside of the output shaft (6) and the connecting shaft (4).

3. The explosion-proof inclined plate piston-opening compressor unit of the integrated air conditioner for underground coal mines according to claim 2, characterized in that, The front end plate (32) is connected and fixed to the compressor (1), and the rear end plate (33) is connected and fixed to the explosion-proof motor (2).

4. The explosion-proof inclined plate piston-opening compressor unit of the integrated air conditioner for underground coal mines according to claim 3, characterized in that, The front end plate (32) and the rear end plate (33) are provided with mounting holes (34), and the compressor (1) housing and the explosion-proof motor (2) housing are provided with screw holes (8) at corresponding positions, and are fixedly connected by bolts.

5. The explosion-proof inclined plate piston-opening compressor unit of the integrated air conditioner for underground coal mines according to claim 2, characterized in that, The sleeve (31) is provided with an observation port (35) in the middle, and the observation port (35) corresponds to the connection point of the output shaft (6) and the connecting shaft (4).

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