Cooling tower permanent magnet motor of new energy planetary driving mechanism

Abstract

The utility model discloses a cooling tower permanent magnet motor of a new energy planetary driving mechanism, which relates to the technical field of motors and comprises a permanent magnet motor body and a planetary driving mechanism mounted on one side of the permanent magnet motor body. The permanent magnet motor body comprises a base, a motor stator, a motor rotor, a motor rotating shaft and a motor rear cover; the motor stator and the motor rotor are arranged in the base and are matched with each other; according to the scheme, the plurality of first bearings are in running fit with the motor rotating shaft to directly support the motor rotating shaft, so that the internal space of the base can be reduced, the internal structure of the motor is compact, the size is smaller, and the running stability of the motor rotating shaft can be ensured; the inner gear ring and the end cover are integrally fixed on the base, so that the inner gear ring, the end cover and the base form an integrated structure, the size of the motor is further reduced, the structure is more compact, meanwhile, the motor is more energy-saving and efficient, and the requirements of new energy equipment are met.

Description

Technical Field

[0001] The utility model relates to a cooling tower permanent magnet motor of a new energy planetary drive mechanism, belonging to the technical field of motors. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to reduce the water temperature. It uses the heat exchange between water and air flow to produce steam, and the steam evaporates and takes away the heat to achieve the principles of evaporative heat dissipation, convection heat transfer and radiation heat transfer to dissipate the waste heat generated in industry or refrigeration and air conditioning to reduce the water temperature. The existing cooling tower fan drive is mainly electric drive, and the motor drives the fan through a reducer or the motor directly drives the fan.

[0003] A Chinese patent with announcement number CN213846445U discloses a driving mechanism for a cooling tower and a cooling tower, the technical key points of which are: a permanent magnet motor assembly includes a housing, a motor stator disposed in the housing, and a motor rotor penetrating the motor stator, the magnetic field of the motor stator and the magnetic field of the motor rotor interact to generate torque; a first-stage planetary reducer assembly is detachably connected to the housing, and the input end of the first-stage planetary reducer assembly is connected to the motor rotor. The cooling tower includes a fan and the above-mentioned driving mechanism for the cooling tower, and the driving mechanism for the cooling tower is used to drive the fan.

[0004] The above technical solution achieves the purpose of reducing failures and lowering maintenance costs by combining the permanent magnet motor assembly and the first-stage planetary reducer assembly into an integrated structure. However, due to the consideration of the support for the motor rotor in the above technical solution, the internal structure of the permanent magnet motor assembly is not compact enough, and the volume and weight of the permanent magnet motor assembly are also increased. Therefore, it is necessary to design a motor structure with a more compact structure and smaller volume. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a cooling tower permanent magnet motor with a new energy planetary drive mechanism.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a cooling tower permanent magnet motor with a new energy planetary drive mechanism, comprising a permanent magnet motor body and a planetary drive mechanism, wherein the planetary drive mechanism is installed on one side of the permanent magnet motor body;

[0007] The permanent magnet motor body comprises a base, a motor stator, a motor rotor, a motor shaft, and a motor back cover; the motor stator and the motor rotor are both arranged in the base, and the motor stator and the motor rotor cooperate with each other; one end of the motor shaft cooperates with the motor rotor, and the other end cooperates with the base for rotation; the motor back cover is connected and fixed to the side end of the base, and the motor shaft does not contact the motor back cover;

[0008] The planetary drive mechanism comprises a sun gear, planetary gears, a planet carrier, an inner gear ring, a main shaft and an end cover; the sun gear and the motor shaft are an integrated structure; the inner gear ring and the end cover are integrally fixed to the base; a plurality of planetary gears are provided, and the planet carrier and the plurality of planetary gears are all provided on the inner side of the inner gear ring; the sun gear is meshed with the plurality of planetary gears, and the plurality of planetary gears are meshed with the gear ring, and the sun gear is used to drive the plurality of planetary gears to rotate; the main shaft passes through the end cover and cooperates with the planet carrier;

[0009] The main shaft is used to drive the fan of the cooling tower.

[0010] Preferably, a plurality of first bearings are provided on the machine base, and the motor shaft is rotatably matched with the machine base through the plurality of first bearings.

[0011] Preferably, the inner gear ring and the end cover are integrally fixed to the machine base by bolts, so that the inner gear ring, the end cover and the machine base form an integrated structure.

[0012] Preferably, a second bearing and a third bearing are respectively provided at both ends of the planet carrier, one end of the planet carrier is rotatably matched with the inner gear ring and the base through the second bearing, and the other end of the planet carrier is rotatably matched with the end cover through the third bearing.

[0013] Preferably, one end of the sun gear is provided with a toothed structure cooperating with the planetary gear, and the other end is provided with a motor coupling structure.

[0014] Preferably, a junction box is provided on the base, and the junction box is integrally formed with the base.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The utility model provides a cooling tower permanent magnet motor of a new energy planetary drive mechanism, which directly provides support for the motor shaft through multiple first bearings that rotate with the motor shaft, which can reduce the internal space of the base, making the internal structure of the motor compact and smaller in size, while also ensuring the stability of the motor shaft operation; by fixing the inner gear ring and the end cover on the base as a whole, the inner gear ring, the end cover and the base form an integrated structure, further reducing the size of the motor and making the structure more compact, and at the same time, making the motor more energy-efficient and efficient, so that it meets the requirements of new energy equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0018] Attached Figure 1 This is a structural schematic diagram of a cooling tower permanent magnet motor of a new energy planetary drive mechanism described in the utility model;

[0019] Attached Figure 2 For attachment Figure 1 Schematic diagram from another perspective;

[0020] Attached Figure 3 It is a cross-sectional view of a cooling tower permanent magnet motor of a new energy planetary drive mechanism described in the utility model.

[0021] In the figure: 1. base; 2. motor stator; 3. motor rotor; 4. motor rear cover; 5. sun gear; 6. planetary gear; 7. planetary carrier; 8. inner ring gear; 9. main shaft; 10. end cover; 11. first bearing; 12. second bearing; 13. third bearing; 14. junction box. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] As attached Figure 1-3 As shown, a cooling tower permanent magnet motor with a new energy planetary drive mechanism described in the utility model comprises a permanent magnet motor body and a planetary drive mechanism, and the planetary drive mechanism is installed on one side of the permanent magnet motor body.

[0024] The permanent magnet motor body includes a base 1, a motor stator 2, a motor rotor 3, a motor shaft, and a motor back cover 4; the motor stator 2 and the motor rotor 3 are both arranged in the base 1, and the motor stator 2 and the motor rotor 3 cooperate with each other; one end of the motor shaft cooperates with the motor rotor 3, and the other end rotates with the base 1, wherein a plurality of first bearings 11 are arranged on the base 1, and the motor shaft rotates with the base 1 through the plurality of first bearings 11. In this embodiment, the number of the first bearings 11 is set to two, which can be adjusted according to actual conditions when in use; the motor back cover 4 is connected and fixed to the side end of the base 1, and the motor shaft does not contact the motor back cover 4. Through the rotational cooperation of the plurality of first bearings 11 with the motor shaft, support can be provided for the motor shaft, and support is no longer required from the motor back cover 4, which can reduce the internal space of the base 1, make the internal structure of the motor more compact and smaller in size, and also ensure the stability of the motor shaft operation.

[0025] The planetary drive mechanism includes a sun gear 5, a planetary gear 6, a planetary carrier 7, an inner gear ring 8, a main shaft 9 and an end cover 10; the sun gear 5 and the motor shaft are an integrated structure, the inner gear ring 8 and the end cover 10 are integrally fixed to the base 1, wherein the inner gear ring 8 and the end cover 10 are integrally fixed to the base 1 by bolts, so that the inner gear ring 8, the end cover 10 and the base 1 form an integrated structure, making the structure of the inner gear ring 8, the end cover 10 and the base 1 more compact, further reducing the volume of the permanent magnet motor described in the present application.

[0026] There are multiple planetary gears 6, and the planet carrier 7 and the multiple planetary gears 6 are all arranged on the inner side of the inner gear ring 8; the sun gear 5 is meshed with the multiple planetary gears 6, and the multiple planetary gears 6 are meshed with the gear ring. The sun gear 5 is used to drive the multiple planetary gears 6 to rotate. In this embodiment, one end of the sun gear 5 is provided with a toothed structure that matches the planetary gears 6, and the other end is provided with a motor coupling structure; the main shaft 9 passes through the end cover 10 and matches the planet carrier 7. The main shaft 9 is used to drive the fan of the cooling tower.

[0027] The two ends of the planet carrier 7 are respectively provided with a second bearing 12 and a third bearing 13 . One end of the planet carrier 7 is rotatably matched with the inner gear ring 8 and the base 1 through the second bearing 12 , and the other end of the planet carrier 7 is rotatably matched with the end cover 10 through the third bearing 13 .

[0028] The base 1 is provided with a junction box 14 , and the junction box 14 is integrally formed with the base 1 .

[0029] The above are only specific application examples of the utility model and do not constitute any limitation to the protection scope of the utility model; any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the utility model.

Claims

1. A cooling tower permanent magnet motor with a new energy planetary drive mechanism, characterized in that: It comprises a permanent magnet motor body and a planetary drive mechanism, wherein the planetary drive mechanism is installed on one side of the permanent magnet motor body; The permanent magnet motor body comprises a base (1), a motor stator (2), a motor rotor (3), a motor shaft, and a motor rear cover (4); the motor stator (2) and the motor rotor (3) are both arranged in the base (1), and the motor stator (2) and the motor rotor (3) cooperate with each other; one end of the motor shaft cooperates with the motor rotor (3), and the other end rotates with the base (1); the motor rear cover (4) is connected and fixed to the side end of the base (1), and the motor shaft does not contact the motor rear cover (4); The planetary drive mechanism comprises a sun gear (5), planetary gears (6), a planet carrier (7), an inner gear ring (8), a main shaft (9) and an end cover (10); the sun gear (5) and the motor shaft are an integral structure; the inner gear ring (8) and the end cover (10) are integrally fixed to the base (1); a plurality of planetary gears (6) are provided, and the planet carrier (7) and the plurality of planetary gears (6) are all provided on the inner side of the inner gear ring (8); the sun gear (5) and the plurality of planetary gears (6) are meshed with each other, and the plurality of planetary gears (6) and the gear ring are meshed with each other, and the sun gear (5) is used to drive the plurality of planetary gears (6) to rotate; the main shaft (9) passes through the end cover (10) and cooperates with the planet carrier (7); The main shaft (9) is used to drive the fan of the cooling tower.

2. The cooling tower permanent magnet motor of a new energy planetary drive mechanism according to claim 1 is characterized in that: A plurality of first bearings (11) are arranged on the machine base (1), and the motor shaft is rotatably matched with the machine base (1) via the plurality of first bearings (11).

3. The cooling tower permanent magnet motor of a new energy planetary drive mechanism according to claim 1 is characterized in that: The inner gear ring (8) and the end cover (10) are integrally fixed to the machine base (1) by means of bolts, so that the inner gear ring (8), the end cover (10) and the machine base (1) form an integral structure.

4. The cooling tower permanent magnet motor of a new energy planetary drive mechanism according to claim 1 is characterized in that: The two ends of the planet carrier (7) are respectively provided with a second bearing (12) and a third bearing (13); one end of the planet carrier (7) is rotatably matched with the inner gear ring (8) and the base (1) through the second bearing (12); and the other end of the planet carrier (7) is rotatably matched with the end cover (10) through the third bearing (13).

5. The cooling tower permanent magnet motor of a new energy planetary drive mechanism according to claim 1 is characterized in that: One end of the sun gear (5) is provided with a toothed structure that matches the planetary gear (6), and the other end is provided with a motor coupling structure.

6. The cooling tower permanent magnet motor of a new energy planetary drive mechanism according to claim 1 is characterized in that: A junction box (14) is provided on the machine base (1), and the junction box (14) and the machine base (1) are integrally formed.

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