Auxiliary heat dissipation device for escalator motor

Abstract

The utility model relates to an escalator motor auxiliary heat dissipation device, which belongs to the technical field of motor heat dissipation and comprises a heat dissipation shell, a motor end cover is provided with the heat dissipation shell, a cooling liquid cavity and an air duct are arranged in the heat dissipation shell, and a plurality of heat dissipation fins are arranged in the heat dissipation shell. The propeller is installed in the cooling liquid cavity, the transmission mechanism is installed in the heat dissipation shell, and the power shaft is in transmission connection with the propeller through the transmission mechanism, so that the heat of the motor shell can be conducted to the cooling liquid in the cooling liquid cavity through the end cover in the working process of the motor, and then the heat is conducted to the heat dissipation fins through the cooling liquid; the motor main shaft drives the fan to dissipate heat of the heat dissipation fins through the power shaft, and meanwhile, the power shaft drives the propeller through the transmission mechanism to enable cooling liquid to be in a flowing state all the time, so that heat is not accumulated at one position, the heat dissipation efficiency of the motor is higher than that of a conventional fin air-cooled heat dissipation mode, and overheat accumulation of the heat of the motor is avoided; and the heat dissipation efficiency of the motor is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor heat dissipation, and particularly relates to an auxiliary heat dissipation device for an escalator motor. Background Technique

[0002] An escalator, or an automatic pedestrian elevator, handrail elevator, moving staircase, is a transportation tool that transports pedestrians in a conveyor belt manner. Escalators are generally inclined. Pedestrians stand on the automatically moving steps at one end of the escalator and will be automatically taken to the other end. During the journey, the steps will remain horizontal all the way, and the operation of the escalator is inseparable from the escalator motor.

[0003] The commonly used heat dissipation method for existing escalator motors is the combination of fixed heat conduction and air cooling. Heat dissipation fins are arranged on the outer shell of the motor, and a fan is installed at one end of the central axis of the motor. When the motor starts, the central axis of the motor drives the fan for air cooling, and the heat dissipation fins are naturally cooled by the external air. However, for escalator motors that are often in use, they generate a large amount of heat themselves, have a small heat dissipation surface area, and are prone to heat accumulation in special high-temperature seasons, resulting in overheating of the motor. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model further provides an auxiliary heat dissipation device for an escalator motor.

[0005] The specific technical solution of the utility model is as follows: An auxiliary heat dissipation device for an escalator motor, comprising: a heat dissipation housing, the heat dissipation housing is installed on the motor end cover, a coolant cavity and an air duct are arranged in the heat dissipation housing, a plurality of heat dissipation fins are installed in the heat dissipation housing, one end of the heat dissipation fin is placed in the coolant cavity, the other end of the heat dissipation fin is placed in the air duct, a power shaft is rotatably connected in the air duct, the motor main shaft is in transmission connection with the power shaft, a fan is installed on the power shaft, a propeller is installed in the coolant cavity, a transmission mechanism is installed in the heat dissipation housing, and the power shaft is in transmission connection with the propeller through the transmission mechanism.

[0006] Further, the transmission mechanism comprises: a first bevel gear, the first bevel gear is installed on the power shaft, a transmission shaft is rotatably connected in the heat dissipation housing, a second bevel gear and a third bevel gear are installed on the transmission shaft, the second bevel gear is placed in the air duct, the third bevel gear is placed in the coolant cavity, a rotating shaft is rotatably connected in the coolant cavity, a fourth bevel gear and a propeller are installed on the rotating shaft, and the first bevel gear is in meshing transmission with the second bevel gear, and the third bevel gear is in meshing transmission with the fourth bevel gear.

[0007] Further, a liquid inlet valve and a liquid outlet valve are installed on the heat dissipation housing, and both the liquid inlet valve and the liquid outlet valve are communicated with the coolant cavity.

[0008] Further, a cover net is installed at one end of the air duct.

[0009] Further, the power shaft is drivingly connected to the main shaft of the motor through a coupling.

[0010] Further, a gasket is provided between the heat dissipation housing and the motor end cover.

[0011] Further, a mounting seat is provided on the heat dissipation housing.

[0012] Beneficial effects:

[0013] In this application, a coolant chamber and an air duct are provided in the heat dissipation housing. A plurality of heat dissipation fins are installed in the heat dissipation housing. One end of the heat dissipation fin is placed in the coolant chamber, and the other end of the heat dissipation fin is placed in the air duct. A power shaft is rotatably connected in the air duct, the main shaft of the motor is drivingly connected to the power shaft, a fan is installed on the power shaft, a propeller is installed in the coolant chamber, and a transmission mechanism is installed in the heat dissipation housing. The power shaft is drivingly connected to the propeller through the transmission mechanism. During the operation of the motor, the heat of the motor housing can be conducted to the coolant in the coolant chamber through the end cover, and then the coolant conducts the heat to the heat dissipation fins. The main shaft of the motor drives the fan through the power shaft to dissipate heat from the heat dissipation fins. At the same time, the power shaft drives the propeller through the transmission mechanism to keep the coolant in a flowing state all the time so that heat does not accumulate in one place, making the heat dissipation efficiency of the motor higher than that of the conventional fin air-cooled heat dissipation, avoiding overheating of the motor due to heat accumulation, and thus greatly improving the heat dissipation efficiency of the motor. Description of the drawings

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the transmission mechanism of the present utility model;

[0016] Description of the reference numerals in the drawings:

[0017] Heat dissipation housing 1, coolant chamber 2, air duct 3, heat dissipation fin 4, power shaft 5, fan 6, propeller 7, transmission mechanism 8, first bevel gear 81, transmission shaft 82, second bevel gear 83, third bevel gear 84, rotating shaft 85, fourth bevel gear 86, liquid inlet valve 9, liquid outlet valve 10, cover net 11, coupling 12, mounting seat 13. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0020] Embodiment 1: An auxiliary heat dissipation device for an escalator motor, comprising: a heat dissipation housing 1, the heat dissipation housing 1 is installed on the motor end cover, a coolant chamber 2 and an air duct 3 are arranged in the heat dissipation housing 1, a plurality of heat dissipation fins 4 are installed in the heat dissipation housing 1, one end of the heat dissipation fin 4 is placed in the coolant chamber 2, the other end of the heat dissipation fin 4 is placed in the air duct 3, a power shaft 5 is rotatably connected in the air duct 3, the motor main shaft is in transmission connection with the power shaft 5, a fan 6 is installed on the power shaft 5, a propeller 7 is installed in the coolant chamber 2, a transmission mechanism 8 is installed in the heat dissipation housing 1, and the power shaft 5 is in transmission connection with the propeller 7 through the transmission mechanism 8. In this application, the coolant chamber 2 and the air duct 3 are arranged in the heat dissipation housing 1, a plurality of heat dissipation fins 4 are installed in the heat dissipation housing 1, one end of the heat dissipation fin 4 is placed in the coolant chamber 2, the other end of the heat dissipation fin 4 is placed in the air duct 3, a power shaft 5 is rotatably connected in the air duct 3, the motor main shaft is in transmission connection with the power shaft 5, a fan 6 is installed on the power shaft 5, a propeller 7 is installed in the coolant chamber 2, a transmission mechanism 8 is installed in the heat dissipation housing 1, and the power shaft 5 is in transmission connection with the propeller 7 through the transmission mechanism 8, so that the heat of the motor housing during the operation of the motor can be conducted to the coolant in the coolant chamber 2 through the end cover, and then the coolant conducts the heat to the heat dissipation fins 4. The motor main shaft drives the fan 6 through the power shaft 5 to dissipate heat from the heat dissipation fins 4. At the same time, the power shaft 5 drives the propeller 7 through the transmission mechanism 8 to keep the coolant in a flowing state so that the heat does not accumulate in one place, making the motor heat dissipation efficiency higher than that of the conventional fin air-cooled heat dissipation, avoiding the overheating of the motor due to heat accumulation, and thus greatly improving the motor heat dissipation efficiency.

[0021] Embodiment 2: On the basis of Embodiment 1, the transmission mechanism 8 includes: a first bevel gear 81, the first bevel gear 81 is installed on the power shaft 5, a transmission shaft 82 is rotatably connected in the heat dissipation housing 1, a second bevel gear 83 and a third bevel gear 84 are installed on the transmission shaft 82, the second bevel gear 83 is placed in the air duct 3, the third bevel gear 84 is placed in the coolant chamber 2, a rotating shaft 85 is rotatably connected in the coolant chamber 2, a fourth bevel gear 86 and a propeller 7 are installed on the rotating shaft 85, the first bevel gear 81 is in meshing transmission with the second bevel gear 83, and the third bevel gear 84 is in meshing transmission with the fourth bevel gear 86. In this application, by installing the first bevel gear 81 on the power shaft 5, rotatably connecting the transmission shaft 82 in the heat dissipation housing 1, installing the second bevel gear 83 and the third bevel gear 84 on the transmission shaft 82, placing the second bevel gear 83 in the air duct 3, placing the third bevel gear 84 in the coolant chamber 2, rotatably connecting the rotating shaft 85 in the coolant chamber 2, installing the fourth bevel gear 86 and the propeller 7 on the rotating shaft 85, and making the first bevel gear 81 in meshing transmission with the second bevel gear 83 and the third bevel gear 84 in meshing transmission with the fourth bevel gear 86, the motor can drive the propeller 7 to perform coolant circulation through the transmission mechanism 8 during normal operation, thereby improving the heat dissipation efficiency.

[0022] Embodiment 3: On the basis of Embodiment 1, a liquid inlet valve 9 and a liquid outlet valve 10 are installed on the heat dissipation housing 1, and both the liquid inlet valve 9 and the liquid outlet valve 10 are communicated with the coolant chamber 2. In this application, by installing the liquid inlet valve 9 and the liquid outlet valve 10 on the heat dissipation housing 1 and both the liquid inlet valve 9 and the liquid outlet valve 10 being communicated with the coolant chamber 2, the input and output of the coolant of the auxiliary heat dissipation device are made more convenient, thereby improving the use convenience.

[0023] Embodiment 4: On the basis of Embodiment 1, a screen net 11 is installed at one end of the air duct 3. In this application, by installing the screen net 11 at one end of the air duct 3, foreign matters from the outside are prevented from entering the air duct 3, improving the use safety.

[0024] Embodiment 5: On the basis of Embodiment 1, the power shaft 5 is in transmission connection with the motor main shaft through a coupling 12. In this application, by the power shaft 5 being in transmission connection with the motor main shaft through the coupling 12, the transmission efficiency is improved.

[0025] Embodiment 6: On the basis of Embodiment 1, a sealing gasket is provided between the heat dissipation housing 1 and the motor end cover. In this application, by providing the sealing gasket between the heat dissipation housing 1 and the motor end cover, the coolant is prevented from flowing out through the gap between the heat dissipation housing 1 and the motor end cover, avoiding the need to frequently add coolant during use, thereby improving the use convenience.

[0026] Embodiment 6: On the basis of Embodiment 1, a mounting seat 13 is provided on the heat dissipation housing 1. In this application, by providing the mounting seat 13 on the heat dissipation housing 1, the installation of the auxiliary heat dissipation device is made more stable.

[0027] Working process:

[0028] After the motor starts, the heat of the motor housing is conducted to the coolant in the coolant chamber 2 through the end cover, and then the coolant conducts the heat to the heat dissipation fins 4. The motor main shaft drives the fan 6 through the power shaft 5 to dissipate heat from the heat dissipation fins 4. At the same time, the power shaft 5 drives the transmission shaft 82 to rotate through the first bevel gear 81 and the second bevel gear 83, and the transmission shaft 82 drives the rotating shaft 85 to rotate through the third bevel gear 84 and the fourth bevel gear 86. The rotating shaft 85 drives the propeller 7 to keep the coolant in a circulating flow state.

[0029] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above - disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An auxiliary heat dissipation device for an escalator motor, characterized in that, Comprising: A heat dissipation housing (1), the heat dissipation housing (1) is installed on the motor end cover. A coolant cavity (2) and an air duct (3) are arranged inside the heat dissipation housing (1). A plurality of heat dissipation fins (4) are installed inside the heat dissipation housing (1). One end of the heat dissipation fin (4) is placed inside the coolant cavity (2), and the other end of the heat dissipation fin (4) is placed inside the air duct (3). A power shaft (5) is rotatably connected inside the air duct (3). The motor main shaft is in transmission connection with the power shaft (5). A fan (6) is installed on the power shaft (5). A propeller (7) is installed inside the coolant cavity (2). A transmission mechanism (8) is installed inside the heat dissipation housing (1). The power shaft (5) is in transmission connection with the propeller (7) through the transmission mechanism (8).

2. The auxiliary heat dissipation device for an escalator motor according to claim 1, wherein, The transmission mechanism (8) includes: a first bevel gear (81). The first bevel gear (81) is installed on the power shaft (5). A transmission shaft (82) is rotatably connected inside the heat dissipation housing (1). A second bevel gear (83) and a third bevel gear (84) are installed on the transmission shaft (82). The second bevel gear (83) is placed inside the air duct (3), and the third bevel gear (84) is placed inside the coolant cavity (2). A rotating shaft (85) is rotatably connected inside the coolant cavity (2). A fourth bevel gear (86) and a propeller (7) are installed on the rotating shaft (85). The first bevel gear (81) is in meshing transmission with the second bevel gear (83), and the third bevel gear (84) is in meshing transmission with the fourth bevel gear (86).

3. The auxiliary heat dissipation device for an escalator motor according to claim 1, characterized in that, An inlet valve (9) and an outlet valve (10) are installed on the heat dissipation housing (1). Both the inlet valve (9) and the outlet valve (10) are communicated with the coolant cavity (2).

4. An escalator motor auxiliary heat dissipation device according to claim 1, characterized in that A cover net (11) is installed at one end of the air duct (3).

5. The auxiliary heat dissipation device for escalator motor according to claim 1, wherein The power shaft (5) is in transmission connection with the motor main shaft through a coupling (12).

6. The auxiliary heat dissipation device for escalator motor according to claim 1, wherein, A gasket is arranged between the heat dissipation housing (1) and the motor end cover.

7. An auxiliary heat dissipation device for an escalator motor according to claim 1, characterized in that, An installation seat (13) is arranged on the heat dissipation housing (1).

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