Efficient four-in-one driving device

Abstract

The utility model relates to the technical field of electric hoists, and discloses an efficient four-in-one driving device which comprises a motor, a brake is arranged at the tail end of the motor, the brake and the motor are coaxial, a winding drum is arranged at the end, away from the brake, of the motor, a speed reducer is arranged at the end, away from the motor, of the winding drum, and the speed reducer is connected with the motor. A transmission shaft is arranged in the middle in the speed reducer, an output shaft is arranged in the middle of the motor, and a coupler is arranged at the transmission output end of the output shaft. By arranging the magnetic gear, a high-speed gear pair in the speed reducer is replaced by the magnetic gear, so that the electric hoist has no mechanical friction loss at a high-speed light-load speed reduction part, the operation efficiency of the driving device is improved, and the operation is more stable; the device can improve the performance of the electric hoist and prolong the maintenance period of the electric hoist without changing the original driving structure of the electric hoist, and is relatively low in modification cost and very practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric hoists, in particular to a high-efficiency four-in-one driving device. Background Art

[0002] Electric hoist is a kind of lifting equipment installed on overhead crane and gantry crane. It has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places. Electric hoist has a compact structure. The lifting drive device of wire rope electric hoist is usually composed of three parts: brake, motor, parallel shaft reducer, etc., which is a three-in-one drive device.

[0003] Since the electric hoist is a heavy equipment and its reducer is a heavy-duty reducer, the lubricating oil needs to be a lubricating oil with a higher viscosity. Due to the high viscosity of the lubricating oil, the flow resistance is large, and the speed of the motor is also high. Therefore, during the operation of the reducer, the efficiency of the first stage (high-speed stage) is low, which in turn reduces the efficiency of the entire three-in-one drive device. For this reason, a high-efficiency four-in-one drive device is proposed here. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-efficiency four-in-one drive device, which effectively solves the problems existing in the existing electric hoist drive structure.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency four-in-one drive device, comprising a motor, a brake provided at the tail end of the motor, the brake being coaxial with the motor, a reel provided at the end of the motor away from the brake, a reducer provided at the end of the reel away from the motor, a transmission shaft provided in the middle of the reducer, an output shaft provided in the middle of the motor, a coupling provided at the transmission output end of the output shaft, the coupling being connected to the transmission shaft at one end away from the output shaft, a magnetic gear provided on one side of the transmission shaft away from the coupling, a gear shaft provided in the middle of the magnetic gear, a first transmission gear provided on the end of the gear shaft away from the magnetic gear, a second transmission gear provided on one side of the first transmission gear, the middle of the second transmission gear being meshed with the reel, and a connecting bearing provided on the periphery of the reel located on the side of the second transmission gear.

[0006] Preferably, the upper end of the drum shell is connected to an electric trolley by bolts. The electric trolley is a prior art. The electric hoist can be moved laterally on the beam frame through the electric trolley. The motor is connected to the drum shell and the brake shell by bolts. The output shaft of the motor is inserted into the brake ring of the brake. When the brake is working, its brake ring can hold the output shaft of the motor tightly and brake the motor by friction.

[0007] Preferably, the output shaft is connected to the coupling via a key, and the coupling is connected to the transmission shaft via a key, and the output shaft can drive the transmission shaft in the reducer to rotate via the coupling.

[0008] Preferably, the inner ring of the connecting bearing is in interference connection with the reel, the outer ring of the connecting bearing is in interference connection with the inner wall of the reducer, the magnetic gear and the transmission shaft are transmitted through magnetic force, and the transmission between the magnetic gear and the transmission shaft relies on magnetic force, without mechanical contact and friction loss, which can make the transmission smoother and more efficient.

[0009] Preferably, the middle part of the magnetic gear is connected to the gear shaft through a key, the gear shaft is meshed with the middle part of the first transmission gear, and the outer periphery of the first transmission gear is meshed with the outer periphery of the second transmission gear. The magnetic gear can transmit the rotation of the transmission shaft to the gear shaft through magnetic force, and the first transmission gear rotates synchronously with the gear shaft. Then, the first transmission gear drives the second transmission gear to rotate. Since the diameter of the first transmission gear is much smaller than that of the magnetic gear, the purpose of deceleration can be achieved, thereby realizing the function of the reducer.

[0010] Preferably, the middle portion of the second transmission gear is connected to the reel via a key, and the second transmission gear can drive the reel to rotate synchronously when rotating.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In this high-efficiency four-in-one drive device, by setting up a magnetic gear, the magnetic gear replaces the high-speed gear pair in the reducer, so that the electric hoist has no mechanical friction loss in the deceleration part at high speed and light load, so that the operating efficiency of the drive device is improved and the operation is more stable; the device does not change the original drive structure of the electric hoist, can improve the performance of the electric hoist, and extend the maintenance cycle of the electric hoist. The modification cost is low and it is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0015] Figure 2 For this utility model Figure 1 A partial enlarged view of point A in the middle;

[0016] Figure 3 For this utility model Figure 1 A partial enlarged view of point B in the middle;

[0017] In the figure: 1. Motor; 2. Brake; 3. Reel; 4. Reducer; 5. Drive shaft; 6. Output shaft; 7. Coupling; 8. Magnetic gear; 9. Gear shaft; 10. First transmission gear; 11. Second transmission gear; 12. Connecting bearing; 13. Electric trolley. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In this embodiment, Figure 1-3 It is given that the utility model includes a motor 1, a brake 2 is provided at the tail end of the motor 1, the brake 2 is coaxial with the motor 1, a reel 3 is provided at the end of the motor 1 away from the brake 2, a reducer 4 is provided at the end of the reel 3 away from the motor 1, a transmission shaft 5 is provided in the middle of the reducer 4, an output shaft 6 is provided in the middle of the motor 1, a coupling 7 is provided at the transmission output end of the output shaft 6, the coupling 7 is connected to the transmission shaft 5 at the end away from the output shaft 6, a magnetic gear 8 is provided on one side of the transmission shaft 5 away from the coupling 7, a gear shaft 9 is provided in the middle of the magnetic gear 8, a first transmission gear 10 is provided at the end of the gear shaft 9 away from the magnetic gear 8, a second transmission gear 11 is provided on one side of the first transmission gear 10, the middle of the second transmission gear 11 is meshed with the reel 3, and a connecting bearing 12 is provided on the periphery of the reel 3 located on the side of the second transmission gear 11.

[0020] Among them, the upper end of the outer shell of the reel 3 is connected to the electric trolley 13 by bolts. The electric trolley 13 is an existing technology. The electric hoist can be moved horizontally on the beam through the electric trolley 13. The motor 1 is connected to the outer shell of the reel 3 and the outer shell of the brake 2 by bolts. The output shaft 6 of the motor 1 is inserted into the brake ring of the brake 2. When the brake 2 is working, its brake ring can hold the output shaft 6 of the motor 1 tightly and brake the motor 1 by friction.

[0021] Among them, the output shaft 6 is connected to the coupling 7 through a key, and the coupling 7 is connected to the transmission shaft 5 through a key. The output shaft 6 can drive the transmission shaft 5 in the reducer 4 to rotate through the coupling 7.

[0022] Among them, the inner ring of the connecting bearing 12 is interference connected with the reel 3, the outer ring of the connecting bearing 12 is interference connected with the inner wall of the reducer 4, the magnetic gear 8 and the transmission shaft 5 are transmitted through magnetic force, and the transmission between the magnetic gear 8 and the transmission shaft 5 relies on magnetic force. There is no mechanical contact and friction loss, which can make the transmission more stable and efficient.

[0023] Among them, the middle part of the magnetic gear 8 is connected to the gear shaft 9 by a key, the gear shaft 9 is meshed with the middle part of the first transmission gear 10, and the outer periphery of the first transmission gear 10 is meshed with the outer periphery of the second transmission gear 11. The magnetic gear 8 can transmit the rotation of the transmission shaft 5 to the gear shaft 9 through magnetic force, and the first transmission gear 10 rotates synchronously with the gear shaft 9. Then the first transmission gear 10 drives the second transmission gear 11 to rotate. Since the diameter of the first transmission gear 10 is much smaller than that of the magnetic gear 8, the purpose of deceleration can be achieved, and the function of the reducer 4 is realized. The middle part of the second transmission gear 11 is connected to the reel 3 by a key, and the second transmission gear 11 can drive the reel 3 to rotate synchronously when it rotates.

[0024] Working principle: The device uses an external power supply and is controlled by an external control device to work. When the motor 1 is working, its output shaft 6 can drive the transmission shaft 5 in the reducer 4 to rotate through the coupling 7. The transmission between the magnetic gear 8 and the transmission shaft 5 relies on magnetic force. The magnetic gear 8 can transmit the rotation of the transmission shaft 5 to the gear shaft 9 through magnetic force. The first transmission gear 10 rotates synchronously with the gear shaft 9, and then the first transmission gear 10 drives the second transmission gear 11 to rotate. Since the diameter of the first transmission gear 10 is much smaller than that of the magnetic gear 8, the purpose of deceleration can be achieved. , realizing the function of the reducer 4, the middle part of the second transmission gear 11 is connected to the reel 3 through a key, and the second transmission gear 11 can drive the reel 3 to rotate synchronously when rotating. When the brake 2 is working, its brake ring can hold the output shaft 6 of the motor 1 tightly, and brake the motor 1 through friction. The device is improved on the basis of the drive structure of the electric hoist without changing the original structure of the electric hoist. The magnetic gear 8 is used to replace the high-speed gear pair in the reducer 4, which can make the electric hoist have no mechanical friction loss in the deceleration part of high speed and light load, thereby improving the operating efficiency of the drive device.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency four-in-one drive device, comprising a motor (1), characterized in that: The motor (1) is provided with a brake (2) at the tail end, the brake (2) and the motor (1) are coaxial, the motor (1) is provided with a reel (3) at one end away from the brake (2), the reel (3) is provided with a reducer (4) at one end away from the motor (1), a transmission shaft (5) is provided in the middle of the reducer (4), the motor (1) is provided with an output shaft (6) in the middle, the transmission output end of the output shaft (6) is provided with a coupling (7), the coupling (7) is connected to the transmission shaft at one end away from the output shaft (6). The transmission shaft (5) is connected to the coupling (7), a magnetic gear (8) is provided on one side of the transmission shaft (5) away from the coupling (7), a gear shaft (9) is provided in the middle of the magnetic gear (8), a first transmission gear (10) is provided on one end of the gear shaft (9) away from the magnetic gear (8), a second transmission gear (11) is provided on one side of the first transmission gear (10), the middle of the second transmission gear (11) is meshed with the reel (3), and a connecting bearing (12) is provided on the periphery of the reel (3) located on one side of the second transmission gear (11).

2. The high-efficiency four-in-one driving device according to claim 1, characterized in that: The upper end of the housing of the reel (3) is connected to an electric trolley (13) via bolts, the motor (1) is connected to the housing of the reel (3) and the housing of the brake (2) via bolts, and the output shaft (6) of the motor (1) is inserted into the brake ring of the brake (2).

3. The high-efficiency four-in-one driving device according to claim 1, characterized in that: The output shaft (6) is connected to the coupling (7) via a key, and the coupling (7) is connected to the transmission shaft (5) via a key.

4. The high-efficiency four-in-one driving device according to claim 1, characterized in that: The inner ring of the connecting bearing (12) is in interference connection with the reel (3), the outer ring of the connecting bearing (12) is in interference connection with the inner wall of the reducer (4), and the magnetic gear (8) and the transmission shaft (5) are driven by magnetic force.

5. The high-efficiency four-in-one driving device according to claim 1, characterized in that: The middle portion of the magnetic gear (8) is connected to the gear shaft (9) via a key, the gear shaft (9) is meshed with the middle portion of the first transmission gear (10), and the outer periphery of the first transmission gear (10) is meshed with the outer periphery of the second transmission gear (11).

6. The high-efficiency four-in-one driving device according to claim 1, characterized in that: The middle portion of the second transmission gear (11) is connected to the reel (3) via a key.

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