A compact composite transmission mechanism for an electric hoist with an operating drive structure

Abstract

This utility model relates to the technical field of operating drive structure of electric hoist transmission mechanism, and discloses an operating drive structure of a compact composite transmission mechanism for electric hoist, which includes a motor, a mounting base at the upper end of the motor, a reducer at the upper end of the mounting base, lower mounting plates at the two lower corners of the two side walls of the mounting base, and upper mounting plates at the two upper corners of the two side walls of the mounting base. By mounting and fixing the motor and reducer together with the mounting base, the output shaft of the motor is parallel to the input shaft of the reducer, which reduces the axial dimension of the electric hoist's operating drive structure and effectively reduces the noise of the operating drive structure. The tensioning wheel not only ensures the operation of the operating drive structure, but also adjusts the belt tension when the motor is overloaded, causing the drive wheel driven by the motor to slip, thus preventing the motor from burning out. This is very practical.

Description

Technical Field

[0001] This utility model belongs to the technical field of the running drive structure of electric hoist transmission mechanism, specifically a running drive structure of a compact composite transmission mechanism for electric hoist. Background Technology

[0002] An electric hoist is a lifting device, often installed on overhead cranes and gantry cranes. Electric hoists are characterized by their small size, light weight, simple operation, and ease of use. They are commonly used in industrial and mining enterprises, warehouses, docks, and other similar locations. The traditional operating mechanism of a wire rope electric hoist is usually a single-axis coaxial arrangement or a three-in-one structure with parallel axes.

[0003] However, when the existing electric hoist's running drive structure is arranged in a straight line, its axial dimension is too long, which will affect the installation space of the electric hoist. When its running drive structure is a parallel shaft three-in-one structure, the first stage is a high-speed gear transmission, and the running noise is difficult to control. When the motor is overloaded, it is easy to burn out the motor. Therefore, a running drive structure of a compact composite transmission mechanism for electric hoists is proposed here. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a running drive structure for a compact composite transmission mechanism of an electric hoist, which effectively solves the problems existing in the running drive structure of the existing composite transmission mechanism of an electric hoist.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a driving structure for a compact composite transmission mechanism of an electric hoist, comprising a motor, a mounting base at the upper end of the motor, a reducer at the upper end of the mounting base, lower mounting plates at the two lower corners of the two side walls of the mounting base, and upper mounting plates at the two upper corners of the two side walls of the mounting base. An output shaft is located at the middle of one end of the motor, a drive wheel is located at the middle of the end of the output shaft away from the motor, an input shaft is located at the end of the reducer above the output shaft, the output shaft is parallel to the input shaft, a driven wheel is located at the end of the input shaft away from the reducer, a tensioning wheel is located between the driven wheel and the drive wheel, and belts are provided on the drive wheel, the driven wheel, and the tensioning wheel.

[0006] Preferably, both the lower mounting plate and the upper mounting plate are formed on the mounting base. The lower mounting plate is bolted to the upper end of the motor, and the upper mounting plate is bolted to the lower end of the reducer. The motor and the reducer are connected and fixed together through the mounting base. This allows the output shaft of the motor to be parallel to the input shaft of the reducer, which reduces the axial dimension of the electric hoist's running drive and effectively reduces the noise of the running drive structure.

[0007] Preferably, the driving wheel is connected to the output shaft by a key, and the driven wheel is connected to the input shaft by a key. The driving wheel can rotate synchronously with the output shaft, and the driven wheel can rotate synchronously with the input shaft.

[0008] Preferably, the bracket of the tensioning wheel is connected to the end of the motor by bolts.

[0009] Preferably, the belt is nested on the driving pulley and the driven pulley.

[0010] Preferably, the belt is nested on the tensioner. When the motor drives the drive wheel to rotate through the output shaft, it can drive the driven wheel to rotate with the assistance of the tensioner, and then transmit power through the reducer. In this way, when the motor is overloaded, the tensioner will adjust the tension of the belt, causing the drive wheel driven by the motor to slip, so as to prevent the motor from burning out.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In the running drive structure of this compact composite transmission mechanism for electric hoists, the motor and reducer are mounted and fixed together by a mounting base, so that the output shaft of the motor is parallel to the input shaft of the reducer. This reduces the axial dimension of the running drive structure of the electric hoist and effectively reduces the noise of the running drive structure. The tensioning wheel not only ensures the operation of the running drive structure, but also adjusts the belt tension when the motor is overloaded, causing the drive wheel driven by the motor to slip and preventing the motor from burning out. This is very practical. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cleaning brush of the mounting base in this utility model;

[0016] Figure 3 This is a schematic diagram of the connection between the driving wheel, driven wheel, tensioner wheel, and belt in this utility model;

[0017] In the diagram: 1. Motor; 2. Mounting base; 3. Reducer; 4. Lower mounting plate; 5. Upper mounting plate; 6. Output shaft; 7. Drive wheel; 8. Input shaft; 9. Driven wheel; 10. Tensioner wheel; 11. Belt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In this embodiment, by Figure 1-3 The present invention includes a motor 1, a mounting base 2 at the upper end of the motor 1, a reducer 3 at the upper end of the mounting base 2, lower mounting plates 4 at the two lower corners of the two side walls of the mounting base 2, and upper mounting plates 5 at the two upper corners of the two side walls of the mounting base 2. An output shaft 6 is located at the middle of one end of the motor 1, a drive wheel 7 is located at the middle of the end of the output shaft 6 away from the motor 1, an input shaft 8 is located at the end of the reducer 3 above the output shaft 6, the output shaft 6 is parallel to the input shaft 8, a driven wheel 9 is located at the end of the input shaft 8 away from the reducer 3, a tensioning wheel 10 is located between the driven wheel 9 and the drive wheel 7, and a belt 11 is provided on the drive wheel 7, the driven wheel 9, and the tensioning wheel 10.

[0020] The lower mounting plate 4 and the upper mounting plate 5 are both formed on the mounting base 2. The lower mounting plate 4 is bolted to the upper end of the motor 1, and the upper mounting plate 5 is bolted to the lower end of the reducer 3. The motor 1 and the reducer 3 are connected and fixed together by the mounting base 2. This allows the output shaft 6 of the motor 1 to be parallel to the input shaft 8 of the reducer 3, which can reduce the axial dimension of the electric hoist's running drive structure and effectively reduce the noise of the running drive structure.

[0021] The driving wheel 7 is connected to the output shaft 6 by a key, and the driven wheel 9 is connected to the input shaft 8 by a key. The driving wheel 7 can rotate synchronously with the output shaft 6, and the driven wheel 9 can rotate synchronously with the input shaft 8.

[0022] The tensioner 10 is bolted to the end of the motor 1. The belt 11 is nested on the drive wheel 7 and the driven wheel 9. When the motor 1 drives the drive wheel 7 to rotate through the output shaft 6, it can drive the driven wheel 9 to rotate with the assistance of the tensioner 10. The power is then transmitted through the reducer 3. In this way, when the motor 1 is overloaded, the tensioner 10 will adjust the tension of the belt 11, causing the drive wheel 7 driven by the motor 1 to slip, so as to prevent the motor 1 from burning out.

[0023] Working principle: The compact composite transmission mechanism of this electric hoist uses an external power supply and is controlled by an external control device. The motor 1 and the reducer 3 are connected and fixed together by the mounting base 2. This allows the output shaft 6 of the motor 1 to be parallel to the input shaft 8 of the reducer 3, which reduces the axial dimension of the electric hoist's operating drive structure. When the motor 1 drives the drive wheel 7 to rotate through the output shaft 6, it can drive the driven wheel 9 to rotate with the assistance of the tensioner 10, and then transmit power through the reducer 3. In this way, when the motor 1 is overloaded, the tensioner 10 will adjust the tension of the belt 11, causing the drive wheel 7 driven by the motor 1 to slip, thus preventing the motor 1 from burning out.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A running drive structure of a compact composite drive mechanism of an electric hoist, comprising a motor (1), characterized in that: The motor (1) is provided with a mounting base (2) at its upper end. The mounting base (2) is provided with a speed reducer (3) at its upper end. The two corners of the lower part of the two side walls of the mounting base (2) are provided with lower mounting plates (4). The two corners of the upper part of the two side walls of the mounting base (2) are provided with upper mounting plates (5). The motor (1) is provided with an output shaft (6) at the middle of one end. The output shaft (6) is provided with a drive wheel (7) at the middle of the end away from the motor (1). The speed reducer (3) located above the output shaft (6) is provided with an input shaft (8). The output shaft (6) is parallel to the input shaft (8). The input shaft (8) is provided with a driven wheel (9) at the end away from the speed reducer (3). A tension wheel (10) is provided between the driven wheel (9) and the drive wheel (7). A belt (11) is provided on the drive wheel (7), the driven wheel (9) and the tension wheel (10).

2. The operating drive structure of a compact composite transmission mechanism of an electric hoist according to claim 1, characterized in that: The lower mounting plate (4) and the upper mounting plate (5) are both formed on the mounting base (2). The lower mounting plate (4) is connected to the upper end of the motor (1) by bolts, and the upper mounting plate (5) is connected to the lower end of the reducer (3) by bolts.

3. The operation driving structure of the compact composite transmission mechanism of the electric hoist according to claim 1, characterized in that: The driving wheel (7) is connected to the output shaft (6) by a key, and the driven wheel (9) is connected to the input shaft (8) by a key.

4. The operating drive structure of a compact composite transmission mechanism of an electric hoist according to claim 1, characterized in that: The bracket of the tension wheel (10) is connected to the end of the motor (1) by bolts.

5. The operating drive structure of a compact composite transmission mechanism of an electric hoist according to claim 1, characterized in that: The belt (11) is nested on the driving wheel (7) and the driven wheel (9).

6. The operating drive structure of a compact composite transmission mechanism of an electric hoist according to claim 1, characterized in that: The belt (11) is nested on the tensioner (10).

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