Aluminum explosion-proof motor housing device

Abstract

The application relates to the technical field of motor housings, and discloses an aluminum explosion-proof motor housing device, which comprises a motor shell, a motor shaft movably connected to the axis of the motor shell, a main water cooling mechanism through which the motor shaft penetrates and movably connected to the motor shaft, a secondary water cooling mechanism arranged at the other end of the motor shell, and a water cooling and heat dissipation mechanism arranged at the two sides of the motor shell and fixedly connected to the main water cooling mechanism and the secondary water cooling mechanism at the two ends, respectively. The water cooling and heat dissipation mechanism is fixedly connected to equidistantly arranged heat dissipation fans at the outer side. The main water cooling mechanism and the secondary water cooling mechanism are arranged at the end cover, and the water cooling and heat dissipation mechanism is arranged, so that the three form a closed-loop cooling circulation system of cooling water, the heat dissipation efficiency of the motor is effectively improved, the main water cooling mechanism and the secondary water cooling mechanism cool the accumulated heat of bearing friction heat, rotor heat and the like at the end cover, the temperature of the motor is stabilized during long-time operation, and performance reduction or damage caused by overheating is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor housings, and more particularly to an aluminum explosion-proof motor housing device. BACKGROUND

[0002] The aluminum explosion-proof motor housing device is a key industrial safety equipment. The explosion-proof motor housing is a key component for ensuring the safe operation of equipment in flammable and explosive environments, and the material selection directly affects the protection performance and application scenarios of the motor. Traditional explosion-proof housings are mostly made of cast iron or steel structures, which have high mechanical strength, but have problems such as heavy weight, low heat dissipation efficiency, and easy corrosion. With the increasing requirements of the industrial field for equipment lightweight, energy efficiency improvement, and weather resistance, aluminum explosion-proof motor housings have gradually become an important technical direction.

[0003] Aluminum alloy housings significantly improve the applicability of motors in corrosive environments such as chemical industry and marine due to their lightweight (weight is only 1 / 3 of cast iron), excellent thermal conductivity (reducing motor temperature rise by about 10%-15%), and natural corrosion resistance. However, the mechanical strength of aluminum is lower than that of cast iron, and structural optimization (such as rib design) and process improvement (die casting technology) are needed to meet the strict requirements of the explosion-proof standard for impact resistance (such as 7 joule test) and maximum surface temperature (T1-T6 group). In addition, the electrical conductivity of aluminum ensures static safety, but its melting point is relatively low and needs to be avoided in the design.

[0004] The thermal conductivity of aluminum is much better than that of cast iron or steel plate, and the aluminum housing helps to dissipate the heat generated inside the motor to the external environment more quickly, reducing internal hot spot temperature and improving operating efficiency and life.

[0005] Deficiency of Prior Art: Another problem caused by the thermal conductivity of aluminum is that the internal temperature is low, but the shell temperature may be higher. During motor operation, heat accumulates not only in the middle cylindrical section of the casing, but also in the end cover. Conventional shell heat dissipation often focuses on the middle cylindrical section of the casing, ignoring the heat at the end cover, which can cause a series of problems such as bearing system failure and winding end overheating, resulting in a significant reduction in motor performance. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides an aluminum explosion-proof motor housing device to solve the problems in the background art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: an aluminum explosion-proof motor shell device, comprising a motor shell, characterized in that a motor shaft is movably connected to the center of the motor shell, the motor shaft penetrates and movably connects with a main water cooling mechanism, the other end of the motor shell is provided with a secondary water cooling mechanism, both sides of the motor shell are provided with a water cooling and heat dissipation mechanism, and both ends of the water cooling and heat dissipation mechanism are fixedly connected with the main water cooling mechanism and the secondary water cooling mechanism respectively, and the outer side of the water cooling and heat dissipation mechanism is fixedly connected with equally spaced heat dissipation fans.

[0008] The main water cooling mechanism comprises a gear sleeve set on the surface of the motor shaft, a driven gear meshing with the edge of the gear sleeve, a gear ring meshing with the edge of the driven gear, a stainless steel plate fixedly connected with the side of the gear ring close to the end cover, a fixed rod fixedly connected with the side of the stainless steel plate close to the end cover, a rotating blade I fixedly connected with one end of the fixed rod, a moving assembly coaxially arranged with the driven gear, a cover I fixedly connected with one side of the end cover, and an inlet and outlet water channel fixedly connected along the involute direction of the outer periphery of the cover I.

[0009] Further, an axis core assembly is inserted into the center of the driven gear, and the surface of the axis core assembly is provided with a clamping strip for fixing the driven gear.

[0010] Further, the edge of the stainless steel plate is rotatably connected with the inner wall of the cover I, and is sealed, the axis core of the stainless steel plate is rotatably connected with the motor shaft through a sealing bearing, and the fixed rod is annularly distributed on the side of the stainless steel plate close to the end cover, and the rotating blade I fixedly connected with the end of the fixed rod does not contact the motor shaft.

[0011] Further, the moving assembly comprises a magnet fixedly connected with any tooth of the driven gear, a Hall effect sensor for inducting the magnet, a controller electrically connected with the Hall effect sensor, a hydraulic cylinder electrically connected with the controller, and a connecting plate fixedly connected with the bottom end of the hydraulic cylinder, the Hall effect sensor is located on the perpendicular line of the tooth of the driven gear and the inner wall of the cover I, the controller is fixedly connected with the outer periphery of the hydraulic cylinder, the hydraulic cylinder is fixedly connected with the inner wall of the cover I through the connecting plate, and the telescopic rod of the hydraulic cylinder is rotatably connected with the axis core assembly.

[0012] Further, an opening is formed in the side of the cover I for communicating with the inlet and outlet water channel, and is located between the stainless steel plate and the end cover.

[0013] Further, the secondary water cooling mechanism comprises a cover II sealingly connected with one end of the motor shell, a small motor fixedly connected with one side of the cover II, a shaft rod penetratingly connected with the center of the cover II, a rotating blade II fixedly connected with the outer periphery of the shaft rod, an inlet and outlet water port II fixedly connected along the involute direction of the outer periphery of the cover II, and a driver fixedly connected with the outer side of the small motor, wherein the rotating blade II is annularly arranged on the outer periphery of the shaft rod, and the rotating blade II is located in the interior of the cover II.

[0014] Further, the water cooling heat dissipation mechanism comprises two groups of water tanks symmetrically arranged on two sides of the motor shell, a water pipe connected with one group of water tanks, and the water pipe is composed of a plurality of pipeline arrays.

[0015] Further, the water tank is communicated with the shell one and the shell two through the water inlet and outlet channel and the water inlet and outlet port respectively, and forms a circulating channel of cooling water together with the water pipe.

[0016] The technical effects and advantages of the present application are as follows:

[0017] The present application is provided with a main water cooling mechanism and a secondary water cooling mechanism at the end cover, and a water cooling heat dissipation mechanism is arranged, so that the three form a closed loop cooling circulation system of cooling water, effectively improving the heat dissipation efficiency of the motor, and the main water cooling mechanism and the secondary water cooling mechanism cool the accumulated heat of the bearing friction heat, rotor heat and the like at the end cover, ensuring the temperature stability of the motor during long time operation, avoiding performance degradation or damage due to overheating, and at the same time, the water cooling heat dissipation mechanism carries away the heat through the circulating channel and dissipates to the outside, further enhancing the heat dissipation effect. This design not only improves the reliability and service life of the motor, but also reduces the failure rate caused by high temperature, providing a strong guarantee for the safe operation of the aluminum explosion-proof motor.

[0018] The present application is provided with a main water cooling mechanism and a secondary water cooling mechanism at the end cover, and a water cooling heat dissipation mechanism is arranged, so that the three form a closed loop cooling circulation system of cooling water, effectively improving the heat dissipation efficiency of the motor, and the main water cooling mechanism and the secondary water cooling mechanism cool the accumulated heat of the bearing friction heat, rotor heat and the like at the end cover, ensuring the temperature stability of the motor during long time operation, avoiding performance degradation or damage due to overheating, and at the same time, the water cooling heat dissipation mechanism carries away the heat through the circulating channel and dissipates to the outside, further enhancing the heat dissipation effect. This design not only improves the reliability and service life of the motor, but also reduces the failure rate caused by high temperature, providing a strong guarantee for the safe operation of the aluminum explosion-proof motor.

[0019] The present application is provided with a main water cooling mechanism and a secondary water cooling mechanism at the end cover, and a water cooling heat dissipation mechanism is arranged, so that the three form a closed loop cooling circulation system of cooling water, effectively improving the heat dissipation efficiency of the motor, and the main water cooling mechanism and the secondary water cooling mechanism cool the accumulated heat of the bearing friction heat, rotor heat and the like at the end cover, ensuring the temperature stability of the motor during long time operation, avoiding performance degradation or damage due to overheating, and at the same time, the water cooling heat dissipation mechanism carries away the heat through the circulating channel and dissipates to the outside, further enhancing the heat dissipation effect. This design not only improves the reliability and service life of the motor, but also reduces the failure rate caused by high temperature, providing a strong guarantee for the safe operation of the aluminum explosion-proof motor. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 It is an exploded structural schematic diagram of the main water cooling mechanism of the present application;

[0022] Figure 3 It is a structural schematic diagram of the shell one and the water inlet and outlet channel of the present application;

[0023] Figure 4 It is a structure diagram of the cover one inside of the application;

[0024] Figure 5 It is a structure diagram of the moving assembly of the application;

[0025] Figure 6 It is a structure diagram of the water circulation path of the application;

[0026] Figure 7 It is a structure diagram of the auxiliary water cooling mechanism of the application.

[0027] The figure mark is: 1, motor shell; 11, motor shaft; 111, protruding block; 12, end cover; 2, main water cooling mechanism; 21, gear set; 22, driven gear; 221, shaft center assembly; 23, gear ring; 24, stainless steel plate; 25, fixed rod; 26, rotating vane one; 27, moving assembly; 271, magnet; 272, hall effect sensor; 273, controller; 274, hydraulic cylinder; 275, connecting plate; 28, cover one; 29, water inlet and outlet; 3, auxiliary water cooling mechanism; 31, cover two; 32, small motor; 33, shaft rod; 34, rotating vane two; 35, water inlet and outlet two; 36, driver; 4, water cooling heat dissipation mechanism; 41, water tank; 42, water pipe; 5, heat dissipation fan. DETAILED DESCRIPTION

[0028] The technical solutions in the application will be described clearly and completely below in combination with the drawings in the application, and additionally, the forms of each structure described in the following embodiments are only examples, and the aluminum explosion-proof motor shell device involved in the application is not limited to each structure described in the following embodiments, and all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the application.

[0029] Referring to Figures 1 to 3 , the application provides an aluminum explosion-proof motor shell device, which comprises a motor shell 1, characterized in that a motor shaft 11 is movably connected at the shaft center of the motor shell 1, the motor shaft 11 penetrates and is movably connected with a main water cooling mechanism 2, the other end of the motor shell 1 is provided with an auxiliary water cooling mechanism 3, both sides of the motor shell 1 are provided with a water cooling heat dissipation mechanism 4, and both ends of the water cooling heat dissipation mechanism 4 are fixedly connected with the main water cooling mechanism 2 and the auxiliary water cooling mechanism 3 respectively, and the outer side of the water cooling heat dissipation mechanism 4 is fixedly connected with heat dissipation fans 5 arranged at equal intervals;

[0030] The water cooling heat dissipation mechanism 4 and the main water cooling mechanism 2 and the auxiliary water cooling mechanism 3 at both ends of the motor form a closed-loop cooling circulation system of cooling water, the heat dissipation fan 5 accelerates the gas flow around the motor shell 1 and the water cooling heat dissipation mechanism 4, improves the heat dissipation efficiency of the water cooling heat dissipation mechanism 4, and at the same time, strengthens the heat dissipation of the outer periphery of the motor shell 1.

[0031] The main water cooling mechanism 2 comprises a gear sleeve 21 sleeved on the surface of the motor shaft 11, a driven gear 22 engaged with the edge of the gear sleeve 21, a gear ring 23 engaged with the edge of the driven gear 22, a stainless steel plate 24 fixedly connected with one side of the gear ring 23 close to the end cover 12, a fixed rod 25 fixedly connected with one side of the stainless steel plate 24 close to the end cover 12, a rotating vane I 26 fixedly connected with one end of the fixed rod 25, a moving assembly 27 coaxially arranged with the driven gear 22, a cover I 28 fixedly connected with one side of the end cover 12, and an inlet and outlet water channel 29 fixedly connected along the involute direction of the outer periphery of the cover I 28. The cover I 28 is sealingly connected to one side of the end cover 12, the inlet and outlet water channel 29 is centrally symmetrically arranged on both sides of the cover I 28, the tooth surfaces of the gear sleeve 21 and the driven gear 22 adopt a circular arc transition tooth shape, and the tooth surface hardness is treated by nitriding.

[0032] A preferred embodiment of the present application is that when the motor is running, the motor shaft 11 rotates, thereby driving the gear sleeve 21 to rotate, the gear sleeve 21 drives the driven gear 22 engaged therewith to rotate, thereby driving the gear ring 23 to rotate circumferentially relative to the motor shaft 11, and then driving the fixed rod 25 to rotate synchronously through the stainless steel plate 24, the fixed rod 25 drives the rotating vane I 26 to rotate, the rotating rotating vane I 26 in turn drives the cooling water to flow circumferentially, the centrifugal force generated by the rotation of the rotating vane I 26 causes the cooling water to flow circumferentially in the cover I 28, continuously flushing the surface of the motor shaft 11 and the end cover 12, thereby achieving efficient heat dissipation.

[0033] Since the inlet and outlet water channel 29 is fixedly connected along the involute direction of the outer periphery of the cover I 28, when the cooling water flows circumferentially and passes through the inlet and outlet water channel 29, it flows along the inlet and outlet water channel 29 to the water cooling heat dissipation mechanism 4. The power transmission of the internal components of the cover I 28 to the motor shaft 11 realizes the continuous flow of the cooling water from the water cooling heat dissipation mechanism 4 to the cover I 28 and then to the water cooling heat dissipation mechanism 4, effectively taking away the heat generated during the operation of the motor, and at the same time, the power resources of the motor are utilized.

[0034] Referring to Figure 4 The shaft center assembly 221 is inserted at the shaft center of the driven gear 22, and the surface of the shaft center assembly 221 is provided with a clamping strip for fixing the driven gear 22.

[0035] Referring to Figure 2 The edge of the stainless steel plate 24 is rotationally connected to the inner wall of the cover I 28 through a radial bearing, and is sealed by using a lip seal and a labyrinth seal in series to cope with the scene of soaking in water for a long time, effectively preventing water from entering the transmission cavity. The shaft center of the stainless steel plate 24 is rotationally connected to the motor shaft 11 through a sealing bearing, and the rotating vane I 26 fixedly connected to the end of the fixed rod 25 which is annularly distributed on one side of the stainless steel plate 24 close to the end cover 12 does not contact the motor shaft 11.

[0036] The opening for communicating with the water inlet / outlet 29 is located between the stainless steel plate 24 and the end cover 12.

[0037] Referring to Figure 5 The moving assembly 27 comprises a magnet 271 fixedly connected to any tooth of the driven gear 22, a Hall effect sensor 272 for sensing the magnet 271, a controller 273 electrically connected to the Hall effect sensor 272, a hydraulic cylinder 274 electrically connected to the controller 273, a connecting plate 275 fixedly connected to the bottom end of the hydraulic cylinder 274, the Hall effect sensor 272 is located on the vertical line of the tooth of the driven gear 22 and the inner wall of the cover 1, the controller 273 is fixedly connected to the outer periphery of the hydraulic cylinder 274, the hydraulic cylinder 274 is fixedly connected to the inner wall of the cover 1 through the connecting plate 275, the telescopic rod of the hydraulic cylinder 274 is rotationally connected to the shaft core assembly 221, and the hydraulic cylinder 274 is selected as a miniature single-acting hydraulic cylinder.

[0038] The preferred implementation process of the application is that the rotation of the motor shaft 11 drives the driven gear 22 to rotate through the gear set 21, and then drives the gear ring 23 engaged with the driven gear 22, the stainless steel plate 24 fixedly connected to the gear ring 23 to rotate, and finally drives the rotating blade 1 to rotate through the fixed rod 25 fixedly connected to the stainless steel plate 24, which is annularly fixedly connected to the side of the gear ring 23, so as to realize the annular flow of the cooling water in the cover 1.

[0039] During the rotation of the driven gear 22, the magnet 271 fixedly connected to any tooth of the driven gear 22 will approach the Hall effect sensor 272 once every rotation, so that the magnetic field change generates a pulse, and the rotation speed can be calculated by detecting the passing frequency of the magnet 271, and the controller 273 does not give an instruction when the rotation speed is within the set range.

[0040] When the rotation speed exceeds the set range, the controller 273 sends an instruction to control the hydraulic cylinder 274 to retract its telescopic rod, which drives the driven gear 22 to move to one side of the cover 1 through pulling the shaft core assembly 221, and the driven gear 22 slides along the shaft core assembly 221 to one side of the cover 1, so as to no longer engage with the gear set 21, and further to eliminate the transmission relationship between the rotating blade 1 and the motor shaft 11, thereby avoiding the failure of the mechanical structure of the main water cooling mechanism 2 due to the too fast rotation speed of the motor shaft 11.

[0041] It is worth noting that the Hall effect sensor 272 monitors the rotation speed of the driven gear 22 in real time, and when the rotation speed exceeds the set range, the rotation speed approaches the threshold value (not reaching the threshold value), and the controller 273 sends a pre-start signal to the hydraulic cylinder 274 in advance, so that the telescopic rod is in a "retraction" state.

[0042] Referring to Figure 7The auxiliary water cooling mechanism 3 comprises a cover shell 31 connected to one end of the motor shell 1, a small motor 32 fixedly connected to one side of the cover shell 31, a shaft 33 penetratingly connected to the center of the cover shell 31, a rotating blade 34 fixedly connected to the outer periphery of the shaft 33, a water inlet and outlet 35 fixedly connected along the involute direction of the outer periphery of the cover shell 31, and a driver 36 fixedly connected to the outer side of the small motor 32, wherein the rotating blade 34 is annularly arranged on the outer periphery of the shaft 33 and located inside the cover shell 31.

[0043] In a preferred embodiment of the present application, the control panel 273 sends another signal to the driver 36 while sending a command to the hydraulic cylinder 274, and the driver 36 controls the small motor 32 to start after receiving the signal, and the small motor 32 drives the shaft 33 to rotate and further controls the rotating blade 34 to rotate in the cover shell 31, thereby becoming a new power for water circulation of the cooling mechanism instead of the main water cooling mechanism 2.

[0044] With reference to Figure 6 The water cooling and heat dissipation mechanism 4 comprises two groups of water tanks 41 symmetrically arranged on both sides of the motor shell 1 and a water pipe 42 connected to one group of the water tanks 41, wherein the water pipe 42 is composed of a plurality of pipeline arrays.

[0045] The water tanks 41 are in communication with the cover shell 1 and the cover shell 2 through the water inlet and outlet 29 and the water inlet and outlet 35 respectively, and together with the water pipe 42, form a circulating channel for cooling water.

[0046] The working principle of the present application is as follows: during the operation of the explosion-proof motor, the rotating motor shaft 11 drives the driven gear 22 through the gear sleeve set 21 fixedly connected to the outer periphery of the motor shaft 11, and further drives the gear ring 23 and the stainless steel plate 24 to rotate, so that the rotating blade 1 26 annularly fixedly connected to the side surface of the stainless steel plate 24 rotates circumferentially, and in this process, the rotating speed of the rotating blade 1 26 is reduced through gear transmission, so that the final rotating speed of the gear ring 23 is maintained within a reasonable range, thereby avoiding that the rotating speed of the rotating blade 1 26 is too fast to affect the heat dissipation efficiency and generate local bubble erosion of the rotating blade 1 26.

[0047] The circumferential rotation of the arc-shaped rotating blade 1 26 pushes the water flow in the cover shell 1 to flow annularly, and the water flow enters the water tank 41 located on one side of the motor shell 1 along the water inlet and outlet 29, and when the water flow passes through the narrow water inlet and outlet 29, the flow rate is increased, and then the water flow is dispersed into the water pipe 42, and the water pipe 42 is arranged in an array, which greatly increases the contact area between the cooling water and the external environment, and greatly increases the heat exchange efficiency between the cooling water and the environment, and the cooled water enters the water tank 41 at the other end of the water pipe 42, and enters the cover shell 2 through the water inlet and outlet 2 connected thereto, and the water flow pushes the rotating blade 2 34 to rotate circumferentially, and forms annular flow in the cover shell 2 along the rotating blade 2 34, and carries away the heat collected in the motor shell 1.

[0048] Cooling water enters the water tank 41 and water pipe 42 on the other side of the motor shell 1 through the water inlet and outlet 35, and re-enters the main water cooling mechanism 2 after cooling, forming a closed cooling system in the main water cooling mechanism 2, the auxiliary water cooling mechanism 3, and the water-cooled heat dissipation mechanism 4, so that the motor operates in a relatively low-temperature and stable working environment.

[0049] Notably, the heat dissipation fan 5 arranged equidistantly on one side of the water pipe 42 is always in an open state during the operation of the motor shell 1, accelerating the air flow around the motor shell 1 and the air flow rate on the surface of the motor shell 1 and the water pipe 42, and improving the heat dissipation efficiency.

[0050] To avoid the negative impact of the excessive rotation speed of the rotating blade 26 on itself, when the rotation speed exceeds the set upper limit, the mechanical transmission relationship between the rotating blade 26 and the motor shaft 11 is released. The specific working principle is as follows: a magnet 271 is embedded on the teeth of the driven gear 22, and a Hall effect sensor 272 is arranged at the corresponding position to detect the rotation speed. When the rotation speed exceeds the set value, the hydraulic cylinder 274 is controlled by the controller 273 to pull the driven gear 22 away from the gear sleeve 21 through the telescopic rod, so as to release the engagement relationship between the driven gear 22 and the gear sleeve 21. The rotation speed set value meets the condition of the hydraulic cylinder 274 controlling the driven gear 22 to disengage, and a signal is sent to the driver 36 to start the small motor 32, so that the small motor 32 becomes the new power of the water circulation of the cooling mechanism.

[0051] The working principle of re-engagement is as follows: after the driven gear 22 is disengaged from the gear sleeve 21, it needs to be re-engaged at the beginning of the next working cycle, which is as follows:

[0052] When the Hall effect sensor 272 detects that the explosion-proof motor is in a stationary state, the re-engagement program is started.

[0053] Active alignment and buffer engagement: the controller 273 first sends a “slow extension” instruction to the hydraulic cylinder 274, so that the driven gear 22 approaches the gear sleeve 21 at a low speed of 0.5 mm / s, until the two tooth surfaces are slightly in contact (the pressure change is detected by the pressure sensor equipped with the hydraulic cylinder, and the extension is stopped when the pressure ≥ 50N).

[0054] At the same time, the controller 273 sends a “small amplitude speed regulation” signal to the motor, so that the motor shaft 11 drives the gear sleeve 21 to make small forward and reverse rotations (±5°), until the gear tooth groove is aligned with the driven gear tooth top (the phase change of the magnet 271 is detected by the Hall effect sensor to determine the position of the tooth groove).

[0055] After alignment, the hydraulic cylinder 274 continues to slowly extend, so that the driven gear 22 is completely engaged. The whole process takes ≤3s, and there is no impact at the moment of engagement.

[0056] Engagement state detection: after the engagement is completed, the engagement state is confirmed to be normal by monitoring the motor operating current fluctuation (fluctuation ≤5%); if the current fluctuation is too large, the above alignment process is repeated until the engagement is successful.

[0057] It should be noted that in the description of the present application, the terms "front", "back", "left", "right", "up", "down", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application. The terms "front", "back", "left", "right", "up", "down" used in the description of the present application refer to the directions in the drawings, and the terms "inner", "outer" respectively refer to the directions towards or away from the geometric center of a particular component.

[0058] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An aluminium explosion-proof electric machine housing arrangement comprising an electric machine housing (1), characterised in that, The motor shaft (11) is movably connected to the shaft center of the motor shell (1), one end of the motor shell (1) is fixedly connected with an end cover (12), the motor shaft (11) penetrates through and is movably connected with a main water cooling mechanism (2), the other end of the motor shell (1) is provided with a secondary water cooling mechanism (3), both sides of the motor shell (1) are provided with water cooling heat dissipation mechanisms (4), both ends of the water cooling heat dissipation mechanisms (4) are fixedly connected with the main water cooling mechanism (2) and the secondary water cooling mechanism (3) respectively, and the outer side of the water cooling heat dissipation mechanism (4) is fixedly connected with equidistantly arranged heat dissipation fans (5). The main water cooling mechanism (2) comprises a gear sleeve (21) sleeved on the surface of the motor shaft (11), a driven gear (22) engaged with the edge of the gear sleeve (21), a gear ring (23) engaged with the edge of the driven gear (22), a stainless steel plate (24) fixedly connected with the side of the gear ring (23) close to the end cover (12), a fixed rod (25) fixedly connected on the side of the stainless steel plate (24) close to the end cover (12), a rotating blade I (26) fixedly connected with one end of the fixed rod (25), a moving assembly (27) coaxially arranged with the driven gear (22), a cover I (28) fixedly connected on one side of the end cover (12), and an inlet and outlet water channel (29) fixedly connected along the involute direction of the outer periphery of the cover I (28). The secondary water cooling mechanism (3) comprises a cover II (31) sealingly connected to one end of the motor shell (1), a small motor (32) fixedly connected to one side of the cover II (31), a shaft rod (33) penetratingly connected at the shaft center of the cover II (31), a rotating blade II (34) fixedly connected to the outer periphery of the shaft rod (33), an inlet and outlet water port II (35) fixedly connected along the involute direction of the outer periphery of the cover II (31), and a driver (36) fixedly connected to the outer side of the small motor (32), wherein the rotating blade II (34) is annularly arranged on the outer periphery of the shaft rod (33) and located in the interior of the cover II (31). The water cooling heat dissipation mechanism (4) comprises two groups of water tanks (41) symmetrically arranged on both sides of the motor shell (1) and a water pipe (42) connected with one group of water tanks (41), wherein the water pipe (42) is composed of a plurality of pipeline arrays.

2. An aluminum explosion-proof electrical machine housing apparatus as defined in claim 1, wherein: An axis center assembly (221) is inserted at the shaft center of the driven gear (22), and a clamping strip for fixing the driven gear (22) is arranged on the surface of the axis center assembly (221).

3. An aluminum explosion-proof electrical machine housing apparatus as defined in claim 1, wherein: The edge of the stainless steel plate (24) is rotatably connected with the inner wall of the cover I (28) and is sealed, the shaft center of the stainless steel plate (24) is rotatably connected with the motor shaft (11) through a sealing bearing, the fixed rod (25) is annularly distributed on the side of the stainless steel plate (24) close to the end cover (12), and the rotating blade I (26) fixedly connected to the end of the fixed rod (25) does not contact the motor shaft (11).

4. An aluminum explosion-proof electrical machine housing apparatus as defined in claim 1, wherein: The moving assembly (27) comprises a magnet (271) fixedly connected to any tooth of the driven gear (22), a Hall effect sensor (272) for sensing the magnet (271), a controller (273) electrically connected to the Hall effect sensor (272), a hydraulic cylinder (274) electrically connected to the controller (273), a connecting plate (275) fixedly connected to the bottom end of the hydraulic cylinder (274), the Hall effect sensor (272) is located on the vertical line of the tooth of the driven gear (22) and the inner wall of the shell one (28), the controller (273) is fixedly connected to the outer periphery of the hydraulic cylinder (274), the hydraulic cylinder (274) is fixedly connected to the inner wall of the shell one (28) through the connecting plate (275), and the telescopic rod of the hydraulic cylinder (274) is rotatably connected to the shaft core assembly (221).

5. An aluminum explosion-proof electrical machine housing apparatus as defined in claim 1, wherein: The opening for communicating with the water inlet and outlet channel (29) is arranged on the side of the shell one (28) and located between the stainless steel plate (24) and the end cover (12).

6. An aluminum explosion-proof electrical machine housing apparatus as defined in claim 1, wherein: The water tank (41) is communicated with the shell one (28) and the shell two (31) through the water inlet and outlet channel (29) and the water inlet and outlet two (35) respectively, and together with the water pipe (42) forms a circulating channel of cooling water.

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