Planetary hoist lifting mechanism

Abstract

The utility model provides a kind of planetary hoisting lifting mechanism, including planetary reducer, motor is connected with the input end transmission of planetary reducer, the output end transmission of planetary reducer is connected with reel, and the end of reel away from planetary reducer is provided with shaft seat;The outside of planetary reducer is provided with the heat exchange pipeline being integrated structure with it, and heat exchange pipeline is connected with heat dissipation mechanism by heat dissipation circulating pump;Heat dissipation mechanism has heat dissipation cylinder, and the inside of heat dissipation cylinder is provided with helical heat dissipation coil pipe, and the inside of the upper end of heat dissipation cylinder is fixedly arranged with heat dissipation fan, and heat dissipation coil pipe is connected into heat transfer medium circulation loop with heat dissipation circulating pump and heat exchange pipeline, and heat transfer medium is filled in heat transfer medium circulation loop;In the utility model, increase the area of heat dissipation, air flow inside heat dissipation cylinder is accelerated by heat dissipation fan, improve the heat dissipation effect of planetary reduction mechanism, avoid its overheating, ensure its stable operation.

Description

Technical Field

[0001] This utility model belongs to the field of lifting equipment technology, specifically relating to a planetary lifting mechanism. Background Technology

[0002] Planetary gear reducers are widely used in lifting equipment. However, planetary gear reducers have problems such as dense meshing of multi-stage gears and poor heat dissipation due to their enclosed structure. This makes them prone to overheating under frequent start-stop and heavy-load conditions of cranes.

[0003] Overheating of the planetary reduction gear mechanism in a crane can lead to lubrication failure, component wear, and reduced transmission efficiency, and may even cause safety risks such as the load falling. Therefore, it is necessary to cool the planetary reduction gear mechanism to prevent overheating.

[0004] In the prior art, Chinese utility model patent with authorization announcement number CN213685209U discloses a differential planetary reducer that is easy to integrate and applied to a crane. When the reducer body is working, the cooling fan is started. The cooling fan drives the air on the surface of the reducer body to be forced to convect, thereby dissipating heat from the internal reducer body. However, the heat exchange area between the outer side of the housing and the air is limited, which affects the heat exchange effect.

[0005] Therefore, it is necessary to design a planetary lifting mechanism that increases the heat exchange area with the air, improves the heat dissipation effect of the planetary reduction mechanism, avoids overheating, and ensures stable operation to solve the current technical problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a planetary lifting mechanism that increases the heat exchange area with air, improves the heat dissipation effect of the planetary reduction mechanism, prevents overheating, and ensures stable operation.

[0007] The technical solution of this utility model is as follows: a planetary lifting mechanism, including a planetary reducer, a motor is driven to the input end of the planetary reducer, a drum is driven to the output end of the planetary reducer, and a shaft seat is provided on the end of the drum opposite to the planetary reducer; a heat exchange pipe integrally formed with the planetary reducer is provided on the outside of the planetary reducer, and the heat exchange pipe is connected to a heat dissipation mechanism through a heat dissipation circulation pump; the heat dissipation mechanism has a heat dissipation cylinder, a spiral heat dissipation coil is provided inside the heat dissipation cylinder, a heat dissipation fan is fixedly mounted inside the upper end of the heat dissipation cylinder, and the heat dissipation coil, the heat dissipation circulation pump, and the heat exchange pipe are connected to form a heat transfer medium circulation loop, and the heat transfer medium circulation loop is filled with heat transfer medium.

[0008] Furthermore, a support column is provided inside the heat sink along its axis, and heat sink plates are arranged in a circular array on the outer side of the support column. The side of the heat sink plate opposite to the support column is fixedly connected to the inside of the heat sink, and the heat sink coil and the heat sink plate are an integral structure.

[0009] Furthermore, a cover plate is provided at the top of the heat dissipation cylinder, and an electric actuator is provided on one side of the heat dissipation cylinder to drive the cover plate to open or close.

[0010] Furthermore, a flip plate integrally formed with the cover plate is provided on one side, and an upper hinge seat is fixedly provided on one side of the upper end of the heat dissipation cylinder. The flip plate is hinged to the upper hinge seat, and an electric push rod is hinged to the end of the flip plate opposite to the cover plate. A lower hinge seat is hinged to the end of the electric push rod opposite to the cover plate, and the lower hinge seat is fixedly connected to the heat dissipation cylinder.

[0011] Furthermore, a base plate is fixedly installed at the bottom of the planetary reducer, and the outer side of the bottom end of the heat dissipation cylinder is fixedly connected to the base plate.

[0012] Furthermore, a bracket is provided at the bottom of the cooling fan, and the bracket is fixedly connected to the upper interior of the heat sink.

[0013] The beneficial effects of this utility model are:

[0014] (1) In this utility model, heat exchange is performed between the heat exchange pipe and the shell of the planetary reducer. The heat of the planetary reducer is transferred to the heat transfer medium in the heat exchange pipe. The heat transfer medium inside the heat transfer medium circulation loop is continuously circulated by the heat dissipation circulation pump, and the heat of the planetary reducer is transferred to the heat dissipation coil for heat dissipation, thereby increasing the heat dissipation area. The air flow inside the heat dissipation cylinder is accelerated by the heat dissipation fan, thereby improving the heat dissipation effect of the planetary reducer mechanism, preventing it from overheating, and ensuring its stable operation.

[0015] (2) The planetary reducer is equipped with an integral heat exchange pipe on its outer side. The heat exchange pipe can increase the contact area between the planetary reducer and the outside air, and increase the natural heat dissipation area. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the planetary lifting mechanism in this utility model.

[0017] Figure 2 This is the second schematic diagram of the planetary lifting mechanism in this utility model.

[0018] Figure 3 for Figure 2 Cross-sectional view at point AA.

[0019] Figure 4 for Figure 2 Cross-sectional view at point BB. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0021] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 4As shown, a planetary lifting mechanism is disclosed, including a planetary reducer 2. A motor 4 is driven to the input end of the planetary reducer 2, and a drum 1 is driven to the output end of the planetary reducer 2. A shaft seat 3 is provided on the end of the drum 1 facing away from the planetary reducer 2. A heat exchange pipe 5, integrally formed with the planetary reducer 2, is provided on the outer side of the planetary reducer 2. The heat exchange pipe 5 is connected to a heat dissipation mechanism 6 via a heat dissipation circulation pump 9. The heat dissipation mechanism 6 has a heat dissipation cylinder 61, inside which a spiral heat dissipation coil 62 is provided. A heat dissipation fan 64 is fixedly mounted inside the upper end of the heat dissipation cylinder 61. The heat dissipation coil 62, the heat dissipation circulation pump 9, and the heat exchange pipe 5 are connected to form a heat transfer medium circulation loop, which is filled with a heat transfer medium. In this embodiment... In the process, heat exchange pipe 5 and the shell of planetary reducer 2 exchange heat. The heat of planetary reducer 2 is transferred to the heat transfer medium in heat exchange pipe 5. The heat transfer medium inside the heat transfer medium circulation loop is continuously circulated by heat dissipation circulation pump 9, which transfers the heat of planetary reducer 2 to heat dissipation coil 62, increasing the heat dissipation area. The air flow inside heat dissipation cylinder 61 is accelerated by heat dissipation fan 64, which improves the heat dissipation effect of planetary reducer mechanism, avoids overheating, and ensures stable operation. The heat exchange pipe 5 is an integral structure on the outside of planetary reducer 2. The heat exchange pipe 5 adjusts the original flat surface of planetary reducer 2 to a wavy surface, which can increase the contact area between planetary reducer 2 and external air, and increase the natural heat dissipation area.

[0023] In some embodiments, a support column 66 is provided inside the heat sink 61 along its axis, and heat sink plates 65 are arranged in a circular array on the outer side of the support column 66. The side of the heat sink plate 65 facing away from the support column 66 is fixedly connected to the inside of the heat sink 61. The heat sink coil 62 and the heat sink plate 65 are an integral structure. The heat sink plate 65 further increases the heat dissipation area and improves the heat dissipation effect. Specifically, the heat sink plate 65 and the heat sink coil 62 are an integral structure made of copper.

[0024] In some embodiments, a cover plate 7 is provided at the top of the heat sink 61, and an electric actuator 8 is provided on one side of the heat sink 61 to drive the cover plate 7 to open or close. When the crane is running, the electric actuator 8 drives the cover plate 7 to open and start the cooling fan 64 to run for heat dissipation. When the crane stops, the electric actuator 8 drives the cover plate 7 to close the upper end of the heat sink 61, which provides a certain degree of protection for the heat sink coil 62, heat sink plate 65 and cooling fan 64 inside the heat sink 61.

[0025] In some embodiments, a flip plate 71 integrally formed with the cover plate 7 is provided on one side of the cover plate 7, and an upper hinge seat 72 is fixedly provided on one side of the upper end of the heat sink 61. The flip plate 71 is hinged to the upper hinge seat 72. An electric push rod 8 is hinged to one end of the flip plate 71 away from the cover plate 7, and a lower hinge seat 73 is hinged to one end of the electric push rod 8 away from the cover plate 7. The lower hinge seat 73 is fixedly connected to the heat sink 61. The electric push rod 8 is controlled to extend and retract, and the electric push rod 8 pushes and pulls the end of the flip plate 71, thereby causing the cover plate 7 to close or open the upper end of the heat sink 61.

[0026] In some embodiments, a base plate 21 is fixedly provided at the bottom of the planetary reducer 2, and the outer side of the bottom end of the heat sink 61 is fixedly connected to the base plate 21; specifically, the heat sink 61 is welded and fixed to the base plate 21.

[0027] In some embodiments, a bracket 63 is provided at the bottom of the cooling fan 64, and the bracket 63 is fixedly connected to the upper end of the heat sink 61 to support the cooling fan 64.

[0028] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0029] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A planetary lifting mechanism, characterized in that: The device includes a planetary gear reducer, with a motor driven to its input end and a drum driven to its output end. A shaft seat is located on the drum at the end facing away from the planetary gear reducer. An integral heat exchange pipe is installed on the outer side of the planetary gear reducer, and this heat exchange pipe is connected to a heat dissipation mechanism via a heat dissipation circulation pump. The heat dissipation mechanism has a heat dissipation cylinder, inside which a spiral heat dissipation coil is installed. A heat dissipation fan is fixedly mounted inside the upper end of the heat dissipation cylinder. The heat dissipation coil, the heat dissipation circulation pump, and the heat exchange pipe are connected to form a heat transfer medium circulation loop, which is filled with a heat transfer medium.

2. The planetary lifting mechanism according to claim 1, characterized in that: Inside the heat sink cylinder, a support column is arranged along its axis. Outside the support column, heat sink plates are arranged in a circular array. The side of the heat sink plates facing away from the support column is fixedly connected to the inside of the heat sink cylinder. The heat sink coil and the heat sink plates are an integral structure.

3. The planetary lifting mechanism according to claim 1, characterized in that: The top of the heat sink is provided with a cover plate, and an electric actuator is provided on one side of the heat sink to drive the cover plate to open or close.

4. The planetary lifting mechanism according to claim 3, characterized in that: A flip plate integrally formed with the cover plate is provided on one side. An upper hinge seat is fixedly provided on one side of the upper end of the heat sink. The flip plate is hinged to the upper hinge seat. An electric push rod is hinged to the end of the flip plate opposite to the cover plate. A lower hinge seat is hinged to the end of the electric push rod opposite to the cover plate. The lower hinge seat is fixedly connected to the heat sink.

5. The planetary lifting mechanism according to claim 1, characterized in that: The planetary reducer is fixedly provided with a base plate at its bottom, and the outer side of the bottom end of the heat sink is fixedly connected to the base plate.

6. The planetary lifting mechanism according to claim 1, characterized in that: The bottom of the cooling fan is provided with a bracket, which is fixedly connected to the upper interior of the heat sink.

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