A flameproof high-speed motor structure for special environments

Abstract

The present invention discloses a flameproof high-speed motor structure for special environments, which relates to the technical field of flameproof motors and solves the problem that the exterior is relatively thick and heavy, resulting in poor heat dissipation of the internal motor. A flameproof high-speed motor structure for special environments, comprising a main frame; the main frame comprises a base, a fixed cover, an internal fixed frame and a fixed plate, the bottom of the main frame is fixedly connected with a base; the top of the main frame is fixedly connected with a fixed cover through a fixed column; the fixed column comprises a fixed bar, a disc and a spiral shaft, the center of the fixed column is penetrated and meshed with a spiral shaft; the middle part of the spiral shaft is penetrated and rotatably connected with the disc; the main frame is fixedly connected with an internal fixed frame. The outlet of the ventilation duct of the present invention is arranged at the bottom of the motor, and the ventilation duct gradually becomes smaller from top to bottom, which speeds up the flow speed of the air outlet at the bottom of the ventilation duct, so that the air blows the motor, thereby improving the cooling effect on the motor.

Description

Technical Field

[0001] The invention relates to the technical field of flameproof motors, in particular to a flameproof high-speed motor structure used in special environments. Background Art

[0002] Flameproof motors are motors with flameproof casings. The flameproof casings are required to withstand the internal explosion pressure without damage and prevent the explosion flames from spreading outside the casing. Therefore, the flameproof casings should have both explosion-resistant and flame-proof properties.

[0003] For example, the patent number CN110829701A discloses a vibration-damping explosion-proof motor, including a motor body and an explosion-proof housing arranged around the motor body, the front end of the explosion-proof housing is provided with a front cover, the rear end is provided with a wind shield, the middle part of the inner cavity of the front cover is provided with a bearing chamber, the bearing chamber is provided with a bearing, and the rotating shaft of the motor body is connected to the bearing; a plurality of hollow tubes are provided between the bearing chamber and the bearing, one end of the tube is sealed and connected to the bearing chamber, and the other end is sealed and connected to the bearing. The present invention has a simple structure, can greatly improve the sound insulation and noise reduction effect of the explosion-proof motor, and the effect is remarkable.

[0004] The flameproof motor has a heavy exterior, which results in poor heat dissipation of the motor inside. When the motor runs at high speed, the internal temperature rises due to poor internal heat dissipation, causing the motor speed to be forced to decrease at high temperature. The motor speed cannot be maintained for a long time, and the vibration of the motor increases at high speed, which can easily cause the flameproof medium to shift and reduce the flameproof effect. Summary of the invention

[0005] The purpose of the present invention is to provide a flameproof high-speed motor structure for special environments, so as to solve the problem that the flameproof motor proposed in the above background technology is relatively thick on the outside, resulting in poor heat dissipation of the internal motor. After the motor runs at high speed, the internal temperature rises due to poor internal heat dissipation, causing the motor speed to be forced to decrease at high temperature, and the motor speed cannot be maintained for a long time. In addition, the vibration of the motor increases after high speed, which easily causes the flameproof medium to shift, thereby reducing the flameproof effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an explosion-proof high-speed motor structure for special environments, comprising a main frame; the main frame comprises a base, a fixed cover, an inner fixed frame and a fixed plate, the bottom of the main frame is fixedly connected to a base; the top of the main frame is fixedly connected to a fixed cover through a fixed column; the fixed column comprises a fixed bar, a disc and a spiral shaft, the center of the fixed column is penetrated and meshed with a spiral shaft; the middle part of the spiral shaft is penetrated and rotatably connected with the disc; the inside of the main frame is fixedly connected to an inner fixed frame; the inner fixed frame is connected to a fixed plate through a buffer column; the buffer column comprises a connecting block and a slider, and the buffer column has swing ends at both ends There is a connecting block that is dynamically connected, and a shock-absorbing spring is arranged in the middle of the buffer column; a motor is fixed on the top of the fixed plate through a fixing column; a power shaft is rotatably connected through the middle of the main frame, and the middle of the power shaft is rotatably connected with the inner fixing frame; the power shaft includes a universal joint and a fixed plate, and the middle of the power shaft is rotatably connected with a universal joint; a ventilation pipe is fixedly connected to the middle of the main frame, and the middle of the ventilation pipe is located between the main frame and the inner fixing frame, the ventilation pipe is L-shaped, and the bottom of the ventilation pipe horizontally passes through the base and is connected to the bottom of the inner fixing frame; the partition between the main frame and the inner fixing frame is filled with explosion-proof medium, and a partition is arranged in the middle of the fixed cover and the base, and the partition is filled with explosion-proof medium.

[0007] Preferably, the top of the fixing bar is rotatably connected to the disc, the bottom of the fixing bar is rotatably connected to the outside of the fixing column, and the fixing bar is composed of two sub-bars rotatably connected. When the spiral axis is rotated, the fixing bar is folded outward.

[0008] Preferably, the tail end of the connection block is rotatably connected to the slider and the fixed plate, the connection block rotates around the center of the tail end, and the connection block swings around the front and rear ends of the buffer column.

[0009] Preferably, the tail end of the power shaft is rotatably connected to a fixed disk, the fixed disk is fixedly connected to the head end of the motor, and the tail end of the power shaft is nestedly connected to the power shaft of the motor.

[0010] Preferably, the ventilation duct comprises an upper air duct and an inclined block, the upper air duct is connected to the middle of the fixed cover, the front end of the inclined block is fixed to the inner wall of the ventilation duct, and the lower end of the inclined block is inclined toward the middle of the ventilation duct.

[0011] Preferably, the width of the upper portion of the ventilation duct is greater than the width of the bottom portion of the ventilation duct, the width of the upper air duct is greater than the width of the ventilation duct, and the upper air duct is nested and connected to the top portion of the ventilation duct.

[0012] Preferably, a longitudinal T-shaped slot is provided inside the inner fixing frame, a supporting cylinder is provided in the middle of the T-shaped slot, a slider slides through the T-shaped slot, a spring is provided at the bottom of the slider, and the bottom of the spring is fixedly connected to the inner fixing frame.

[0013] Preferably, a clamping strip is arranged in an array around the outer side of the central rotating shaft of the universal joint, and the clamping strip is fixed vertically to the center of the universal joint.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The ventilation pipe of the present invention runs through the middle medium of the main frame. The explosion-proof medium inside the main frame can be isolated through multiple ventilation pipes, thereby enhancing the stability of the middle medium of the main frame, avoiding flow deviation of the middle medium of the main frame, and improving the explosion-proof stability.

[0016] 2. The ventilation duct of the present invention is provided with an inlet at the top of the motor. Hot air rises and enters into the ventilation duct. The ventilation duct wraps around the main frame downward and passes through the middle of the main frame. The ventilation duct exchanges heat with the main frame to reduce the air temperature inside the ventilation duct. The inclined block provided inside the ventilation duct can reduce air backflow, promote one-way air flow, and promote air circulation to reduce temperature.

[0017] 3. The present invention drives the power shaft to rotate through the motor to enhance the air flow around the motor. The ventilation pipe outlet is set at the bottom of the motor. The ventilation pipe gradually becomes smaller from top to bottom, which accelerates the flow speed of the air outlet at the bottom of the ventilation pipe, so that the air blows the motor, improves the cooling effect of the motor, and enhances the durability of the high speed of the motor.

[0018] 4. The motor of the present invention is fixed on the fixing plate through a fixing column, and the fixing plate is suspended inside the inner fixing frame. The fixing plate can slide vertically through a slider. A shock-absorbing spring is arranged in the middle of the buffer column. The buffer column can swing vertically and rotate longitudinally, so as to reduce the multi-directional vibration generated when the motor rotates at a high speed and promote the high-speed and stable operation of the motor. The universal joint in the middle of the power shaft facilitates the installation of the motor, and the universal joint can adapt to motors of different sizes. The fixing cover is connected to the main frame through the fixing column, and the installation is simple. No additional bolt parts will be generated during disassembly, so it is convenient for later disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the fixed cover of the present invention when viewed from above;

[0021] Figure 3 This is a schematic diagram of the main frame structure of the present invention in a top view;

[0022] Figure 4 It is a schematic diagram of the longitudinal half-section structure of the ventilation pipe of the present invention;

[0023] Figure 5 This is a schematic diagram of a longitudinal half-section structure of the main frame of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the fixing plate of the present invention;

[0025] Figure 7 The present invention Figure 6 A is a schematic diagram of the structure of the enlarged part;

[0026] Figure 8 The present invention Figure 6 Middle B is a schematic diagram of the structure of the enlarged part;

[0027] Fig. 9 It is a schematic diagram of the structure of the fixed column of the present invention;

[0028] Fig.10 It is a schematic diagram of the power shaft structure of the present invention;

[0029] Fig.11 It is a schematic diagram of the disassembled structure of the present invention;

[0030] In the figure: 1. main frame; 101. base; 102. fixed cover; 103. inner fixed frame; 104. fixed plate; 2. ventilation duct; 201. upper air duct; 202. inclined block; 3. motor; 4. power shaft; 401. universal joint; 402. fixed plate; 5. buffer column; 501. connecting block; 502. slider; 6. fixed column; 601. fixed bar; 602. disc; 603. spiral shaft. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See also Figures 1 to 11, an embodiment of the present invention: a flameproof high-speed motor structure for special environments, comprising a main frame 1; the main frame 1 comprises a base 101, a fixing cover 102, an inner fixing frame 103 and a fixing plate 104, the bottom of the main frame 1 is fixedly connected with a base 101; a longitudinal T-shaped slot is arranged inside the inner fixing frame 103, a supporting cylinder is arranged in the middle of the T-shaped slot, a slider 502 slides through the T-shaped slot, a spring is arranged at the bottom of the slider 502, and the bottom of the spring is fixedly connected with the inner fixing frame 103; the top of the main frame 1 is fixedly connected with a The fixing cover 102 is located at the fixing column 6; the fixing column 6 includes a fixing bar 601, a disc 602 and a spiral shaft 603, and a spiral shaft 603 is connected to the center of the fixing column 6 through the meshing connection; the middle of the spiral shaft 603 is connected to the disc 602 through rotation; an inner fixing frame 103 is fixedly connected to the inside of the main frame 1; the inner fixing frame 103 is connected to a fixing plate 104 through a buffer column 5; the buffer column 5 includes a connecting block 501 and a slider 502, and the first and second ends of the buffer column 5 are both swingably connected to a connecting block 501, and a shock-absorbing spring is arranged in the middle of the buffer column 5; the top of the fixing plate 104 is connected to the fixing column 6 A motor 3 is fixed on the top; a power shaft 4 is rotatably connected to the middle of the main frame 1, and the middle of the power shaft 4 is rotatably connected to the inner fixed frame 103; the power shaft 4 includes a universal joint 401 and a fixed plate 402, and the middle of the power shaft 4 is rotatably connected to a universal joint 401; a clamping strip is arranged on the outer surrounding array of the rotating shaft in the middle of the universal joint 401, and the clamping strip is vertically fixed to the center of the universal joint 401, and the clamping strip outside the universal joint 401 enhances the air flow around the motor 3; a ventilation pipe 2 is fixedly connected to the middle of the main frame 1, and the middle of the ventilation pipe 2 is located between the main frame 1 and the inner fixed frame 103, The ventilation duct 2 is L-shaped, and the bottom of the ventilation duct 2 horizontally passes through the base 101 and is connected to the bottom of the internal fixing frame 103; the width of the upper part of the ventilation duct 2 is greater than the width of the bottom of the ventilation duct 2, the width of the upper air duct 201 is greater than the width of the ventilation duct 2, the upper air duct 201 is nested and connected with the top of the ventilation duct 2, and the ventilation duct 2 gradually becomes smaller from top to bottom, which speeds up the flow speed of the air outlet at the bottom of the ventilation duct 2, so that the air blows the motor 3, thereby improving the cooling effect on the motor 3; the partition between the main frame 1 and the internal fixing frame 103 is filled with explosion-proof medium, and a partition is set in the middle of the fixing cover 102 and the base 101, and the partition is filled with explosion-proof medium.

[0033] Furthermore, the top of the fixing bar 601 is rotatably connected to the disc 602, and the bottom of the fixing bar 601 is rotatably connected to the outer side of the fixing column 6. The fixing bar 601 is composed of two sub-bars that are rotatably connected. By rotating the spiral shaft 603, the fixing bar 601 is folded outward, and the fixing cover 102 is connected to the main frame 1 through the fixing column 6. The installation is simple, and no additional bolt parts will be generated during disassembly, which is convenient for later disassembly and maintenance.

[0034] Furthermore, the tail end of the connecting block 501 is rotatably connected to the slider 502 and the fixed plate 104, the connecting block 501 rotates around the center of the tail end, the connecting block 501 swings around the head and tail ends of the buffer column 5, and the buffer column 5 can swing vertically and rotate longitudinally, thereby reducing the multi-directional vibration generated when the motor 3 rotates at a high speed and promoting the high-speed and stable operation of the motor 3.

[0035] Furthermore, the tail end of the power shaft 4 is rotatably connected to a fixed disk 402, the fixed disk 402 is fixedly connected to the head end of the motor 3, the tail end of the power shaft 4 is nested and connected to the power shaft of the motor 3, and the universal joint 401 in the middle of the power shaft 4 facilitates the installation of the motor 3, and the universal joint 401 can adapt to motors 3 of different sizes.

[0036] Furthermore, the ventilation duct 2 includes an upper air duct 201 and an inclined block 202. The upper air duct 201 is connected to the middle of the fixed cover 102. The front end of the inclined block 202 is fixed to the inner wall of the ventilation duct 2. The lower end of the inclined block 202 is inclined toward the middle of the ventilation duct 2. The ventilation duct 2 passes through the middle of the main frame 1. The ventilation duct 2 reduces the air temperature inside the ventilation duct 2 through the heat exchange with the main frame 1. The inclined block 202 arranged inside the ventilation duct 2 can reduce air backflow and promote unidirectional air flow.

[0037] Working principle: The ventilation duct 2 of the present invention runs through the middle medium of the main frame 1. The explosion-proof medium inside the main frame 1 can be isolated through multiple ventilation ducts 2, thereby enhancing the stability of the middle medium of the main frame 1, avoiding the flow deviation of the middle medium of the main frame 1, and improving the stability. The ventilation duct 2 is provided with an inlet at the top of the motor 3. The hot air rises and enters the upper air duct 201. The ventilation duct 2 surrounds the main frame 1 downward. The ventilation duct 2 passes through the middle of the main frame 1. The ventilation duct 2 reduces the air temperature inside the ventilation duct 2 through the heat exchange with the main frame 1. The inclined block 202 arranged inside the ventilation duct 2 can reduce air backflow and promote unidirectional air flow. The motor 3 is nested and connected with the power shaft 4. The power shaft 4 is driven to rotate by the motor 3. The card strip outside the universal joint 401 enhances the air flow around the motor 3. The outlet of the ventilation duct 2 is arranged At the bottom of the motor 3, the ventilation duct 2 gradually becomes smaller from top to bottom, which speeds up the flow speed of the air outlet at the bottom of the ventilation duct 2, so that air blows the motor 3, thereby improving the cooling effect on the motor 3. The motor 3 is fixed to the fixing plate 104 through the fixing column 6. The fixing plate 104 is suspended inside the inner fixing frame 103. The fixing plate 104 can slide vertically through the slider 502. A shock-absorbing spring is arranged in the middle of the buffer column 5. The buffer column 5 can swing vertically and rotate longitudinally to reduce the multi-directional vibration generated when the motor 3 rotates at a high speed, thereby promoting the high-speed and stable operation of the motor 3. The universal joint 401 in the middle of the power shaft 4 facilitates the installation of the motor 3. The universal joint 401 can adapt to motors 3 of different sizes. The fixing cover 102 is connected to the main frame 1 through the fixing column 6. The installation is simple. No additional bolt parts will be generated during disassembly, which is convenient for later disassembly and maintenance.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A flameproof high-speed motor structure for special environments, characterized by: The invention comprises a main frame (1); the main frame (1) comprises a base (101), a fixed cover (102), an inner fixed frame (103) and a fixed plate (104); the bottom of the main frame (1) is fixedly connected to a base (101); the top of the main frame (1) is fixedly connected to a fixed cover (102) via a fixed column (6); the fixed column (6) comprises a fixed bar (601), a disk (602) and a spiral shaft (603); the center of the fixed column (6) is penetrated and meshed with a spiral shaft (603); the middle part of the spiral shaft (603) is penetrated and rotatably connected with the disk (602); the inner fixed frame (103) is fixedly connected to the inside of the main frame (1); the inner fixed frame (103) is connected to a fixed plate (104) via a buffer column (5); the buffer column (5) comprises a connecting block (501) and a sliding block (502); the buffer column (5 ) are swingably connected to a connection block (501) at both ends, and a shock-absorbing spring is arranged in the middle of the buffer column (5); a motor (3) is fixedly mounted on the top of the fixing plate (104) through a fixing column (6); a power shaft (4) is rotatably connected to the middle of the main frame (1), and the middle of the power shaft (4) is rotatably connected to the inner fixing frame (103); the power shaft (4) comprises a universal joint (401) and a fixing plate (402), and the middle of the power shaft (4) is rotatably connected to a universal joint (401); a ventilation pipe (2) is fixedly connected to the middle of the main frame (1), and the middle of the ventilation pipe (2) is located between the main frame (1) and the inner fixing frame (103), the ventilation pipe (2) is L-shaped, and the bottom of the ventilation pipe (2) transversely passes through the base (101) and is connected to the bottom of the inner fixing frame (103); the partition between the main frame (1) and the inner fixing frame (103) is filled with an explosion-proof medium; The top of the fixing strip (601) is rotatably connected to the disc (602), and the bottom of the fixing strip (601) is rotatably connected to the outside of the fixing column (6). The fixing strip (601) is composed of two sub-strips rotatably connected. When the spiral shaft (603) is rotated, the fixing strip (601) is folded outwards. A longitudinal T-shaped slide groove is arranged inside the inner fixing frame (103), a supporting cylinder is arranged in the middle of the T-shaped slide groove, a slider (502) penetrates and slides in the T-shaped slide groove, a spring is arranged at the bottom of the slider (502), and the bottom of the spring is fixedly connected to the inner fixing frame (103); the fixing plate (104) is suspended inside the inner fixing frame (103), and the fixing plate (104) can slide vertically through the slider (502); The tail end of the power shaft (4) is rotatably connected to a fixed disk (402), the fixed disk (402) is fixedly connected to the head end of the motor (3), and the tail end of the power shaft (4) is nestedly connected to the power shaft of the motor (3).

2. The flameproof high-speed motor structure for special environments according to claim 1 is characterized in that: The rear end of the connection block (501) is rotatably connected to the slider (502) and the fixing plate (104); the connection block (501) rotates around the center of the rear end; and the connection block (501) swings around the front and rear ends of the buffer column (5).

3. The flameproof high-speed motor structure for special environments according to claim 1, characterized in that: The ventilation pipe (2) comprises an upper air pipe (201) and an inclined block (202); the upper air pipe (201) is connected to the middle of the fixed cover (102); the front end of the inclined block (202) is fixed to the inner wall of the ventilation pipe (2); and the lower end of the inclined block (202) is inclined toward the middle of the ventilation pipe (2).

4. The flameproof high-speed motor structure for special environments according to claim 1, characterized in that: The width of the upper portion of the ventilation pipe (2) is greater than the width of the bottom portion of the ventilation pipe (2), the width of the upper air pipe (201) is greater than the width of the ventilation pipe (2), and the upper air pipe (201) is nested and connected to the top portion of the ventilation pipe (2).

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