A three-phase permanent magnet synchronous electric drum air cooling structure

Abstract

The utility model discloses a three-phase permanent magnet synchronous electric drum air-cooling structure, comprising a shaft, an air-cooling outer cylinder, an air inlet sleeve, an air outlet sleeve, a protective cover, an air guide tube and an air guide heat sink; the air-cooling outer cylinder is sleeved on the outer side of the shaft and the air-cooling outer cylinder is coaxial with the shaft, the air guide tube is sleeved on the shaft and the air guide tube is coaxial with the shaft, the air guide tube is located inside the air-cooling outer cylinder, and a plurality of air guide heat sinks are arranged in the space between the air-cooling outer cylinder and the air guide tube; the air inlet sleeve and the air outlet sleeve are respectively installed at both ends of the air-cooling outer cylinder and the air inlet sleeve and the air outlet sleeve are both sleeved on the outer side of the shaft, the protective cover is installed on the side of the shaft away from the air inlet sleeve, a slot matching the protective cover is opened on the air outlet sleeve, the air-cooling outer cylinder, the protective cover and the air outlet sleeve are connected as a whole, and the hollow parts of the air inlet sleeve, the air cooling outer cylinder and the air outlet sleeve are sequentially connected. The utility model three-phase permanent magnet synchronous electric drum air-cooling structure changes the air inlet in the shaft to the air inlet outside the shaft, and does not need to distribute the air inlet at a vertical air inlet distribution port, which significantly improves the heat dissipation effect and has good application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a three-phase permanent magnet synchronous electric drum air cooling structure, and in particular to a three-phase permanent magnet synchronous electric drum air cooling structure with good heat dissipation effect. Background Art

[0002] The three-phase permanent magnet synchronous electric drum is mainly used in dangerous environments with explosive gas or dust in mines, and is suitable for various conveying equipment, etc. The three-phase permanent magnet synchronous electric drum is mainly composed of a stator, a rotor, a support, an end cover, an inner bearing cover, an outer bearing cover, an elastic gasket for the shaft, a self-aligning roller bearing, a lip seal ring, an O-type rubber seal ring, etc., among which the air-cooling structure is the core of the stator. The existing air-cooling structure has the following problems: the existing air-cooling structure adopts the form of in-shaft air intake. On the one hand, the cross-section of the in-shaft air intake is limited, which affects the heat dissipation effect to a certain extent. On the other hand, after the air enters, it guides the wind to the outside through the air inlet distribution port. The current air inlet distribution ports are perpendicular to the axis. This design structure has a large wind resistance, which will further affect the heat dissipation effect.

[0003] Therefore, it is of great practical significance to develop a three-phase permanent magnet synchronous electric drum air-cooled structure with good heat dissipation effect. Utility Model Content

[0004] Due to the above-mentioned defects in the prior art, the utility model provides a three-phase permanent magnet synchronous electric drum air cooling structure with good heat dissipation effect.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A three-phase permanent magnet synchronous electric drum air cooling structure, comprising a shaft, an air cooling outer cylinder, an air inlet sleeve, an air outlet sleeve, a protective cover, an air guide cylinder and an air guide heat dissipation plate;

[0007] The air-cooling outer cylinder is sleeved on the outside of the shaft and is coaxial with the shaft, the air-guiding cylinder is sleeved on the shaft and is coaxial with the shaft, the air-guiding cylinder is located inside the air-cooling outer cylinder, and a plurality of air-guiding and heat-dissipating plates evenly distributed around the circumference of the shaft are installed in the space between the air-cooling outer cylinder and the air-guiding cylinder;

[0008] The air inlet sleeve and the air outlet sleeve are respectively installed at the two ends of the air-cooled outer cylinder and are both mounted on the outside of the shaft. The protective cover is installed on the side of the shaft away from the air inlet sleeve and is close to the air-cooled outer cylinder. A slot matching the protective cover is opened on the air outlet sleeve. The air-cooled outer cylinder, the protective cover and the air outlet sleeve are connected as a whole, and the hollow parts of the air inlet sleeve, the air-cooled outer cylinder and the air outlet sleeve are connected in sequence.

[0009] The utility model discloses a three-phase permanent magnet synchronous electric drum air cooling structure, which changes the shaft inner air intake to shaft outer air intake, thereby greatly improving the air intake cross-sectional area, increasing the air intake volume, and improving the heat dissipation effect; there is no need for vertical air intake distribution ports to distribute the air intake, which can greatly reduce the wind resistance of the flow channel, further improving the heat dissipation effect, and has good application prospects.

[0010] As the preferred technical solution:

[0011] In the above-mentioned three-phase permanent magnet synchronous electric drum air-cooling structure, the air-cooling outer cylinder and the air guide cylinder are both cylindrical structures.

[0012] In the above-mentioned three-phase permanent magnet synchronous electric drum air cooling structure, both ends of the air guide cylinder are equipped with air guide end covers matching the air guide cylinder, the air guide end covers are fixed and sealed away from the ends of the air guide cylinder, and the air guide end covers are truncated cone cylinder structures. The existence of the air guide end covers can effectively guide the wind into the air guide heat dissipation plate area, reduce the cross-sectional area, and increase the heat exchange efficiency.

[0013] In the air-cooled structure of a three-phase permanent magnet synchronous electric drum as described above, stator end cover 1 and stator end cover 2 are respectively provided at both ends of the air-cooled outer cylinder, stator end cover 1 and stator end cover 2 are respectively provided with a circle of air inlet holes and a circle of air exhaust holes, and the circle of air inlet holes and the circle of air exhaust holes are arranged around the circumference of the shaft.

[0014] A three-phase permanent magnet synchronous electric drum air cooling structure as described above, wherein the air guide and heat dissipation plate is fixed on the inner wall of the air cooling outer cylinder and the air guide and heat dissipation plate is arranged along the axial direction of the air cooling outer cylinder;

[0015] There are a plurality of air guiding and heat dissipating plates, and the plurality of air guiding and heat dissipating plates are evenly arranged around the circumference of the air cooling outer cylinder.

[0016] A three-phase permanent magnet synchronous electric drum air cooling structure as described above, wherein the air inlet sleeve and the air outlet sleeve are both cylindrical structures;

[0017] The air inlet sleeve and the air outlet sleeve are both coaxial with the shaft;

[0018] A plurality of air inlet sleeve air guide plates are fixed on the inner wall of the air inlet sleeve and are evenly arranged around the circumference of the air inlet sleeve. The air inlet sleeve air guide plates are arranged along the axial direction of the air-cooled outer cylinder. The plurality of air inlet sleeve air guide plates divide the space between the air inlet sleeve and the shaft into a plurality of independent spaces.

[0019] A plurality of air outlet sleeve air guide plates evenly arranged around the circumference of the air outlet sleeve are fixed on the inner wall of the air outlet sleeve and arranged along the axial direction of the air cooling outer cylinder. The plurality of air outlet sleeve air guide plates divide the space between the air outlet sleeve and the shaft into a plurality of mutually independent spaces. The presence of the air inlet sleeve air guide plate and the air outlet sleeve air guide plate can provide guidance for the air duct of the air cooling structure, reduce the resistance of the air duct, increase the air flow rate, and improve the heat dissipation efficiency.

[0020] A three-phase permanent magnet synchronous electric drum air cooling structure as described above, wherein the air inlet sleeve air guide plate is located on the side of the air inlet sleeve away from the air cooling outer cylinder;

[0021] The air outlet sleeve air guide plate is located on the side of the air outlet sleeve away from the air cooling outer cylinder.

[0022] In the air-cooling structure of the three-phase permanent magnet synchronous electric drum as described above, a threading tube penetrating the air-cooling outer cylinder is installed on the air-cooling outer cylinder.

[0023] A three-phase permanent magnet synchronous electric drum air-cooling structure as described above, wherein the stator is sleeved on the outside of the three-phase permanent magnet synchronous electric drum air-cooling structure and the stator is coaxial with the shaft;

[0024] The rotor is arranged outside the stator and the rotor is coaxial with the stator. The two ends of the rotor are respectively provided with an end cover 1 and an end cover 2 for closing the end. The middle of the end cover 1 and the end cover 2 are provided with through holes and roller bearings 1 and 2 are respectively installed at the through holes. The two sides of the roller bearing 1 are respectively fixed with a bearing inner cover 1 and a bearing outer cover 1, and the two sides of the roller bearing 2 are respectively fixed with a bearing inner cover 2 and a bearing outer cover 2;

[0025] The two ends of the shaft are fixed by a first support and a second support respectively.

[0026] In the above-mentioned three-phase permanent magnet synchronous electric drum air cooling structure, a fan air guide cover is installed at the end of the shaft close to the air inlet sleeve;

[0027] An electric fan is installed on the fan air guide cover away from the shaft side, and a cylindrical fan tube is mounted on the outer side of the electric fan. The fan tube is connected to the support one through a truncated cone-shaped fan connecting tube, and a fan sealing gasket is provided between the fan tube and the fan connecting tube. A ventilation hole connecting the two sides is opened on the support one.

[0028] The above technical solution is only a feasible technical solution of the present utility model, and the protection scope of the present utility model is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0029] The above utility model has the following advantages or beneficial effects:

[0030] The utility model discloses a three-phase permanent magnet synchronous electric drum air cooling structure, which changes the shaft inner air intake to shaft outer air intake, thereby greatly improving the air intake cross-sectional area, increasing the air intake volume, and improving the heat dissipation effect; there is no need for vertical air intake distribution ports to distribute the air intake, which can greatly reduce the wind resistance of the flow channel, further improving the heat dissipation effect, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on illustrating the subject matter of the present invention.

[0032] Figure 1 A schematic diagram of a flashlight structure equipped with a three-phase permanent magnet synchronous electric drum air-cooling structure of the utility model;

[0033] Figure 2 It is a structural schematic diagram of the air-cooling structure of the three-phase permanent magnet synchronous electric drum of the utility model;

[0034] Figures 3 to 5 They are Figure 2 Cross-sectional views at positions B, C, and D;

[0035] Figure 6 is a cross-sectional view of the air inlet sleeve;

[0036] Figure 7 It is the left view of the air inlet sleeve;

[0037] Figure 8 is a cross-sectional view of the air outlet sleeve;

[0038] Fig. 9 This is the left view of the air outlet sleeve;

[0039] Among them, 1 is a stator, 2 is a rotor, 3 is a support two, 4 is a support one, 5 is an end cover one, 6 is a bearing inner cover two, 7 is a bearing outer cover two, 8 is a fan connecting tube, 9 is a roller bearing one, 10 is a sealing ring one, 11 is a sealing ring two, 12 is a sealing ring three, 13 is an elastic retaining ring for the shaft, 14 is an electric fan, 15 is a fan sealing gasket, 16 is a fan air guide cover, 17 is a junction box, 18 is a shaft, 19 is an air-cooled outer tube, 20 is a stator cover one, 21 is a stator cover two, 22 is an air inlet sleeve, 221 is an air inlet sleeve air guide plate, 23 is an air outlet sleeve, 231 is an air outlet sleeve air guide plate, 24 is an air guide heat sink, 25 is an air guide end cover, 26 is an air guide tube, 27 is a protective cover, and 28 is a threading tube. DETAILED DESCRIPTION

[0040] The structure of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0041] Example 1

[0042] A three-phase permanent magnet synchronous electric drum air cooling structure, such as Figures 1 to 9As shown, it includes a shaft 18, an air-cooling outer cylinder 19 (cylindrical structure), an air inlet sleeve 22 (cylindrical structure), an air outlet sleeve 23 (cylindrical structure), a protective cover 27, an air guide cylinder 26 (cylindrical structure), an air guide end cover 25 (cone cylinder structure) and an air guide heat dissipation plate 24;

[0043] The air-cooling outer cylinder 19 is sleeved on the outside of the shaft 18 and the air-cooling outer cylinder 19 is coaxial with the shaft 18. The air guide cylinder 26 is sleeved on the shaft 18 and the air guide cylinder 26 is coaxial with the shaft 18. The air guide cylinder 26 is located in the air-cooling outer cylinder 19. Both ends of the air guide cylinder 26 are equipped with air guide end covers 25 that match the air guide cylinder 26. The air guide end cover 25 is fixed and sealed away from the end of the air guide cylinder 26 and is fixed to the shaft 18. A plurality of air guide blocks evenly distributed around the circumference of the shaft 18 are installed in the space between the air-cooling outer cylinder 19 and the air guide cylinder 26. The heat sink 24 is fixed on the inner wall of the air-cooled outer cylinder 19 and arranged along the axial direction of the air-cooled outer cylinder 19. A plurality of heat sinks 24 are evenly arranged around the circumference of the air-cooled outer cylinder 19. A stator end cover 1 20 and a stator end cover 21 are respectively provided at both ends of the air-cooled outer cylinder 19. A circle of air inlet holes and a circle of air exhaust holes are respectively opened on the stator end cover 1 20 and the stator end cover 21. The circle of air inlet holes and the circle of air exhaust holes are arranged around the circumference of the shaft 18.

[0044] The air inlet sleeve 22 and the air outlet sleeve 23 are respectively installed at the two ends of the air-cooled outer cylinder 19, and the air inlet sleeve 22 and the air outlet sleeve 23 are both sleeved on the outside of the shaft 18. The air inlet sleeve 22 and the air outlet sleeve 23 are both coaxial with the shaft 18. A plurality of air inlet sleeve air guide plates 221 uniformly arranged around the circumference of the air inlet sleeve 22 are fixed on the inner wall of the air inlet sleeve 22, and the air inlet sleeve air guide plates 221 are arranged along the axial direction of the air-cooled outer cylinder 19. The plurality of air inlet sleeve air guide plates 221 divide the space between the air inlet sleeve 22 and the shaft 18 into a plurality of independent spaces. The air inlet sleeve air guide plates 221 are located on the side of the air inlet sleeve 22 away from the air-cooled outer cylinder 19, and a plurality of air outlet sleeve air guide plates 221 uniformly arranged around the circumference of the air outlet sleeve 23 are fixed on the inner wall of the air outlet sleeve 23. The air sleeve air guide plate 231 and the air outlet sleeve air guide plate 231 are arranged along the axial direction of the air cooling outer cylinder 19. The multiple air outlet sleeve air guide plates 231 divide the space between the air outlet sleeve 23 and the shaft 18 into multiple independent spaces. The air outlet sleeve air guide plate 231 is located on the side of the air outlet sleeve 23 away from the air cooling outer cylinder 19. The shield 27 is installed on the side of the shaft 18 away from the air inlet sleeve 23 and the shield 27 is close to the air cooling outer cylinder 19. The air outlet sleeve 23 is provided with a slot matching the shield 27. The air cooling outer cylinder 19, the shield 27 and the air outlet sleeve 23 are connected as a whole. The hollow parts of the air inlet sleeve 22, the air cooling outer cylinder 19 and the air outlet sleeve 23 are connected in sequence. The air cooling outer cylinder 19 is provided with a threading tube 28 that penetrates the air cooling outer cylinder 19.

[0045] The stator 1 is sleeved on the outside of the air-cooled structure of the three-phase permanent magnet synchronous electric drum and the stator 1 is coaxial with the shaft 18. The rotor 2 is arranged on the outside of the stator 1 and the rotor 2 is coaxial with the stator 1. The two ends of the rotor 2 are respectively provided with an end cover 1 5 and an end cover 2 for closing the end thereof. Through holes are opened in the middle of the end cover 1 5 and the end cover 2 and roller bearings 1 9 and roller bearings 2 are respectively installed at the through holes. The two sides of the roller bearing 1 9 are respectively fixed with a bearing inner cover 1 and a bearing outer cover 1, and the two sides of the roller bearing 2 are respectively fixed with a bearing inner cover 2 6 and a bearing outer cover 2 7. The two ends of the shaft 18 are respectively fixed by a support 1 4 and a support 2;

[0046] A fan air guide cover 16 is installed at the end of the shaft 18 close to the air inlet sleeve 22, and an electric fan 14 is installed on the side of the fan air guide cover 16 away from the shaft 18. A cylindrical fan tube is installed on the outer side of the electric fan 14. The fan tube is connected to the support 4 through a frustum-shaped fan connecting tube 8, and a fan sealing gasket 15 is provided between the fan tube and the fan connecting tube 8. The support 4 is provided with ventilation holes connecting the two sides.

[0047] It has been verified that the three-phase permanent magnet synchronous electric drum air-cooling structure of the utility model changes the air inlet from the shaft to the shaft outside, and the air inlet cross-sectional area is greatly improved, the air inlet volume is increased, and the heat dissipation effect is improved; there is no need for vertical air inlet distribution ports to distribute the air, which can greatly reduce the wind resistance of the flow channel, further improve the heat dissipation effect, and has good application prospects.

[0048] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0049] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A three-phase permanent magnet synchronous electric drum air cooling structure, characterized in that: It includes a shaft, an air-cooling outer cylinder, an air inlet sleeve, an air outlet sleeve, a protective cover, an air guide cylinder and an air guide heat dissipation plate; The air-cooling outer cylinder is sleeved on the outside of the shaft and is coaxial with the shaft, the air-guiding cylinder is sleeved on the shaft and is coaxial with the shaft, the air-guiding cylinder is located inside the air-cooling outer cylinder, and a plurality of air-guiding and heat-dissipating plates evenly distributed around the circumference of the shaft are installed in the space between the air-cooling outer cylinder and the air-guiding cylinder; The air inlet sleeve and the air outlet sleeve are respectively installed at the two ends of the air-cooled outer cylinder and are both mounted on the outside of the shaft. The protective cover is installed on the side of the shaft away from the air inlet sleeve and is close to the air-cooled outer cylinder. A slot matching the protective cover is opened on the air outlet sleeve. The air-cooled outer cylinder, the protective cover and the air outlet sleeve are connected as a whole, and the hollow parts of the air inlet sleeve, the air-cooled outer cylinder and the air outlet sleeve are connected in sequence.

2. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 1 is characterized in that: The air-cooling outer cylinder and the air guide cylinder are both cylindrical structures.

3. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 2 is characterized in that: Both ends of the air guide cylinder are provided with air guide end covers matching with the air guide cylinder, the air guide end covers are fixed and sealed to the shaft away from the ends of the air guide cylinder, and the air guide end covers are of a truncated cone cylinder structure.

4. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 2 is characterized in that: The two ends of the air-cooled outer cylinder are respectively provided with a stator end cover 1 and a stator end cover 2, and the stator end cover 1 and the stator end cover 2 are respectively provided with a circle of air inlet holes and a circle of air exhaust holes, and the circle of air inlet holes and the circle of air exhaust holes are arranged around the circumference of the shaft.

5. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 2 is characterized in that: The air guiding and heat dissipating plate is fixed on the inner wall of the air cooling outer cylinder and is arranged along the axial direction of the air cooling outer cylinder; There are a plurality of air guiding and heat dissipating plates, and the plurality of air guiding and heat dissipating plates are evenly arranged around the circumference of the air cooling outer cylinder.

6. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 2 is characterized in that: The air inlet sleeve and the air outlet sleeve are both cylindrical structures; The air inlet sleeve and the air outlet sleeve are both coaxial with the shaft; A plurality of air inlet sleeve air guide plates are fixed on the inner wall of the air inlet sleeve and are evenly arranged around the circumference of the air inlet sleeve. The air inlet sleeve air guide plates are arranged along the axial direction of the air-cooled outer cylinder. The plurality of air inlet sleeve air guide plates divide the space between the air inlet sleeve and the shaft into a plurality of independent spaces. A plurality of air outlet sleeve air guide plates evenly arranged around the circumference of the air outlet sleeve are fixed on the inner wall of the air outlet sleeve and arranged along the axial direction of the air-cooled outer cylinder. The plurality of air outlet sleeve air guide plates divide the space between the air outlet sleeve and the shaft into a plurality of independent spaces.

7. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 6 is characterized in that: The air inlet sleeve air guide plate is located on the side of the air inlet sleeve away from the air-cooled outer cylinder; The air outlet sleeve air guide plate is located on the side of the air outlet sleeve away from the air cooling outer cylinder.

8. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 1 is characterized in that: A threading tube penetrating the air-cooling outer cylinder is installed on the air-cooling outer cylinder.

9. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 1 is characterized in that: The stator is mounted on the outside of the three-phase permanent magnet synchronous electric drum air-cooling structure and the stator is coaxial with the shaft; The rotor is arranged outside the stator and the rotor is coaxial with the stator. The two ends of the rotor are respectively provided with an end cover 1 and an end cover 2 for closing the end. The middle of the end cover 1 and the end cover 2 are provided with through holes and roller bearings 1 and 2 are respectively installed at the through holes. The two sides of the roller bearing 1 are respectively fixed with a bearing inner cover 1 and a bearing outer cover 1, and the two sides of the roller bearing 2 are respectively fixed with a bearing inner cover 2 and a bearing outer cover 2; The two ends of the shaft are fixed by a first support and a second support respectively.

10. The three-phase permanent magnet synchronous electric drum air cooling structure according to claim 1, characterized in that: The shaft is provided with a fan air guide cover at the end close to the air inlet sleeve; An electric fan is installed on the fan air guide cover away from the shaft side, and a cylindrical fan tube is mounted on the outer side of the electric fan. The fan tube is connected to the support one through a truncated cone-shaped fan connecting tube, and a fan sealing gasket is provided between the fan tube and the fan connecting tube. A ventilation hole connecting the two sides is opened on the support one.

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