Metal gear box with heat dissipation and water prevention functions

Abstract

The utility model discloses a heat dissipation and waterproof metal gear box, which comprises an aluminum alloy shell, a motor, a reduction gear set and centrifugal fan blades, the motor and the reduction gear set are arranged in the aluminum alloy shell, a rotating shaft of the motor is connected with the reduction gear set, and the centrifugal fan blades are arranged in the aluminum alloy shell. A rear cover is arranged at the end, close to the motor, of the aluminum alloy shell, a front cover is arranged at the end, close to the reduction gear set, of the aluminum alloy shell, the rear cover and the front cover are both connected with the aluminum alloy shell in a sealed mode, and an output shaft is arranged on the front cover. The rear end of the output shaft extends into the aluminum alloy shell to be connected with the reduction gear set, an adapter piece is arranged at the front end of the output shaft, the centrifugal fan blade is connected to the rear end of the adapter piece, and heat dissipation, sealing and waterproof performance is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box technical field especially, and it is a kind of metal gear box with heat dissipation and waterproof. BACKGROUND

[0002] In the related art, gear box is widely used as driving component in various electric appliances. The current gear box generally includes a housing, a motor and a reduction gear set. The motor and the reduction gear set are arranged in the housing. The rotating shaft of the motor is connected with the reduction gear set. The reduction gear set is connected with an output shaft. However, the current gear box generally has the following deficiencies:

[0003] 1. Insufficient heat dissipation performance, which affects the stability and reliability of the gear box in operation, and also affects the service life of the gear box.

[0004] 2. Poor sealing and waterproof performance, which causes the gear box to be easily filled with water or foreign matters, thereby affecting the stability and reliability of the gear box in operation, and also affecting the service life of the gear box.

[0005] Therefore, it is necessary to improve the existing gear box. SUMMARY

[0006] The utility model at least partly solves one of the problems in the related art, and one object of the utility model is to provide a metal gear box with heat dissipation and waterproof, which has better heat dissipation and sealing and waterproof performance.

[0007] The above object is achieved by the following technical solutions.

[0008] A metal gear box with heat dissipation and waterproof includes an aluminum alloy housing, a motor, a reduction gear set and a centrifugal fan blade. The motor and the reduction gear set are arranged in the aluminum alloy housing. The rotating shaft of the motor is connected with the reduction gear set. A rear cover is arranged at one end of the aluminum alloy housing close to the motor. A front cover is arranged at one end of the aluminum alloy housing close to the reduction gear set. The rear cover and the front cover are sealingly connected with the aluminum alloy housing. An output shaft is arranged on the front cover. The rear end of the output shaft extends into the aluminum alloy housing and is connected with the reduction gear set. An adapter is arranged on the front end of the output shaft. The centrifugal fan blade is connected to the rear end of the adapter.

[0009] In some embodiments, the rear cover extends into the aluminum alloy housing at one end. A first sealing ring is arranged between the rear cover and the aluminum alloy housing.

[0010] The front cover extends into the aluminum alloy housing at one end. A second sealing ring is arranged between the front cover and the aluminum alloy housing.

[0011] In some embodiments, the rear cover and the aluminum alloy shell are fixed together by screws.

[0012] In some embodiments, a wire outlet hole is formed on the rear cover, and the power line and / or control line of the motor extend out of the wire outlet hole, and the wire outlet hole is filled with sealant.

[0013] In some embodiments, a bearing chamber is formed on the front cover, a ball bearing is arranged in the bearing chamber, and the output shaft is arranged in the ball bearing.

[0014] In some embodiments, a sealing washer is arranged between the ball bearing and the front cover.

[0015] In some embodiments, an oil seal is arranged between the ball bearing and the front cover.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] 1. The metal gear box of the utility model has the functions of heat dissipation and waterproofing, and has good heat dissipation and sealing and waterproofing performance. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional schematic view of the metal gear box in the embodiment Figure 1 ;

[0019] Figure 2 is a three-dimensional schematic view of the metal gear box in the embodiment Figure 2 ;

[0020] Figure 3 is a structural sectional view of the metal gear box in the embodiment

[0021] Figure 4 is an assembly schematic view of the adapter and the centrifugal fan blade in the embodiment. DETAILED DESCRIPTION

[0022] The following embodiments are used to illustrate the utility model, but the utility model is not limited by these embodiments. Modifications are made to the specific embodiments of the utility model or equivalent replacements are made to part of the technical features without departing from the spirit of the utility model, and all of them should be covered in the technical scheme range of the utility model claimed.

[0023] Embodiment one: as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the embodiment provides a metal gear box with heat dissipation and waterproof function, comprising an aluminum alloy shell 1, a motor 2, a reduction gear set 3 and a centrifugal fan blade 4, the motor 2 and the reduction gear set 3 are arranged in the aluminum alloy shell 1, and the rotating shaft 21 of the motor 2 is connected with the reduction gear set 3, a rear cover 5 is arranged at one end of the aluminum alloy shell 1 close to the motor 2, a front cover 6 is arranged at one end of the aluminum alloy shell 1 close to the reduction gear set 3, the rear cover 5 and the front cover 6 are sealingly connected with the aluminum alloy shell 1, an output shaft 7 is arranged on the front cover 6, the rear end of the output shaft 7 extends into the aluminum alloy shell 1 and is connected with the reduction gear set 3, an adapter 8 is arranged on the front end of the output shaft 7, and the centrifugal fan blade 4 is connected to the rear end of the adapter 8.

[0024] The metal gear box provided by the embodiment has good heat dissipation and sealing and waterproof performance.

[0025] Specifically, the aluminum alloy shell 1 is adopted, so that the heat inside the gear box can be quickly dissipated, and the situation of excessively high temperature during the operation of the motor 2 and the reduction gear set 3 can be effectively avoided.

[0026] In addition, the centrifugal fan blade 4 assembled with the adapter 8 is driven by the power during the output of the gear box, and the gear box is quickly cooled by the centrifugal fan blade 4.

[0027] In addition, the rear cover 5 and the front cover 6 are sealingly connected with the aluminum alloy shell 1, so that the sealing performance of the gear box as a whole can be improved, and the water or foreign matters can be prevented from entering the gear box.

[0028] Through the foregoing comprehensive design, the heat dissipation and sealing and waterproof performance of the metal gear box are improved, the stability and reliability of the operation of the gear box are improved, and the service life of the gear box is prolonged.

[0029] In the embodiment, the rear cover 5 extends into the aluminum alloy shell 1 at one end, and a first sealing ring 91 is arranged between the rear cover 5 and the aluminum alloy shell 1.

[0030] The front cover 6 extends into the aluminum alloy shell 1 at one end, and a second sealing ring 92 is arranged between the front cover 6 and the aluminum alloy shell 1.

[0031] The first sealing ring 91 and the second sealing ring 92 are both O-shaped sealing rings, so that the sealing and waterproof performance of the two ends of the metal gear box is improved, the water or foreign matters can be prevented from entering the gear box, and the stability and reliability of the operation of the gear box are improved.

[0032] Preferably, the rear cover 5 and the aluminum alloy shell 1 are fixed together by the screws 10, which is simple in structure, so as to realize the quick connection between the rear cover 5 and the aluminum alloy shell 1, and the sealing performance of the connection between the rear cover 5 and the aluminum alloy shell 1 is further improved by the connection mode.

[0033] More preferably, the wire outlet hole 51 is formed on the rear cover 5, the power line and / or control line of the motor 2 are extended outwards through the wire outlet hole 51, and the sealant is filled in the wire outlet hole 51, which is simple in structure, so as to further improve the sealing and waterproof performance of the gear box and avoid the water or foreign matters from entering into the gear box through the wire outlet hole 51 on the rear cover 5.

[0034] In the embodiment, the bearing chamber 61 is formed on the front cover 6, the ball bearing 11 is arranged in the bearing chamber 61, and the output shaft 7 is arranged in the ball bearing 11, which is simple in structure and reasonable in design, so as to improve the stability and reliability of the output shaft 7 and make the power output of the gear box more stable.

[0035] Preferably, the sealing washer 12 is arranged between the ball bearing 11 and the front cover 6, which is simple in structure, so as to further improve the sealing and waterproof performance of the gear box and avoid the water or foreign matters from entering into the gear box through the bearing chamber 61.

[0036] More preferably, the oil seal 13 is arranged between the ball bearing 11 and the front cover 6, which is simple in structure, so as to reduce or avoid the oil leakage of the gear box and ensure the stability and reliability of the gear box.

[0037] The above only describes some embodiments of the utility model, and the person skilled in the art can make some modifications and improvements without departing from the creative concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A metal gear case having both heat dissipation and waterproofing, characterized by, The application relates to an aluminum alloy shell (1), a motor (2), a speed reduction gear set (3) and a centrifugal fan blade (4), wherein the motor (2) and the speed reduction gear set (3) are arranged in the aluminum alloy shell (1), the rotating shaft (21) of the motor (2) is connected with the speed reduction gear set (3), a rear cover (5) is arranged at one end of the aluminum alloy shell (1) close to the motor (2), a front cover (6) is arranged at one end of the aluminum alloy shell (1) close to the speed reduction gear set (3), the rear cover (5) and the front cover (6) are sealingly connected with the aluminum alloy shell (1), an output shaft (7) is arranged on the front cover (6), the rear end of the output shaft (7) extends into the aluminum alloy shell (1) and is connected with the speed reduction gear set (3), an adapter (8) is arranged on the front end of the output shaft (7), and the centrifugal fan blade (4) is connected to the rear end of the adapter (8).

2. The metal gear case with heat dissipation and waterproof function according to claim 1, characterized in that, The rear cover (5) extends into the aluminum alloy shell (1), and a first sealing ring (91) is arranged between the rear cover (5) and the aluminum alloy shell (1). The front cover (6) extends into the aluminum alloy shell (1), and a second sealing ring (92) is arranged between the front cover (6) and the aluminum alloy shell (1).

3. The metal gear case with heat dissipation and waterproofing according to claim 2, characterized in that, The rear cover (5) and the aluminum alloy shell (1) and the front cover (6) and the aluminum alloy shell (1) are fixed together by screws (10).

4. The metal gear case with heat dissipation and waterproofing according to claim 1, 2 or 3, characterized in that, A wire hole (51) is formed in the rear cover (5), the power supply line and / or the control line of the motor (2) extend outward through the wire hole (51), and sealing glue is filled in the wire hole (51).

5. The metal gear case with heat dissipation and waterproofing according to claim 1, 2 or 3, characterized in that, A bearing chamber (61) is formed in the front cover (6), a ball bearing (11) is arranged in the bearing chamber (61), and the output shaft (7) penetrates through the ball bearing (11).

6. The metal gear case with heat dissipation and waterproofing according to claim 5, characterized in that, A sealing washer (12) is arranged between the ball bearing (11) and the front cover (6).

7. The metal gear case with heat dissipation and waterproofing according to claim 5, characterized in that, An oil seal (13) is arranged between the ball bearing (11) and the front cover (6).

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