Multi-motor driving structure device for electric loader

Abstract

According to the multi-motor driving structure device for the electric loader, the first walking motor, the second walking motor and the working motor are integrated in the gearbox, the space utilization rate of a driving assembly is increased, the driving assembly is tightly arranged, and the space utilization rate is increased; the working motor conducts transmission through the first output gear, the two first reduction gears and the two first output shafts, and power of the working motor is transmitted to drive the steering pump or the working pump to work. According to the scheme, the two walking motors are arranged and include the first walking motor and the second walking motor, and in addition, the first walking motor and the second walking motor are in transmission through the two second output gears, the variable gear, the walking output gear and the walking output shaft to drive the loader to move; by controlling one of the walking motors to rotate or controlling the two walking motors to rotate together, the speed of the loader during movement is achieved, the traction force is adjusted, and the operation requirement of the loader can be met after two-stage speed reduction and torque increase of the change gear are adopted.

Description

Technical Field

[0001] This utility model relates to a multi-motor drive structure device for an electric loader, and more particularly to a multi-motor drive structure device for an electric loader. Background Technology

[0002] Currently, domestic electric loaders generally adopt a dual-motor drive technology. The travel motor is connected to the gearbox and is responsible for driving the loader forward and backward, while the working motor is connected to the hydraulic pump group (or connected to the hydraulic pump group through the transfer case) and is responsible for driving the hydraulic system of the whole machine.

[0003] However, the conventional dual-motor drive technology requires the use of two gearboxes. This structure is too dispersed, has low space utilization, and reduces the reliability of the power system.

[0004] In summary, how to achieve a compact layout of the drive assembly and improve space utilization has become an urgent problem for those in this field. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to achieve a compact arrangement of the drive assembly and improve space utilization;

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model relates to a multi-motor drive structure device for an electric loader, comprising: a gearbox; a working motor, the output shaft of which is located at the top midpoint inside the gearbox; a first output gear, disposed inside the gearbox and connected to the output shaft of the working motor; two first reduction gears meshing with the first output gear, disposed inside the gearbox, the two first reduction gears being symmetrically arranged on both sides of the first output gear with respect to the vertical centerline of the gearbox; two first output shafts, one end of which is connected to the corresponding first reduction gear, and the other end of which is connected to a steering pump or a working pump; a first travel motor and a second travel motor, both symmetrically arranged on both sides of the middle part inside the gearbox with respect to the vertical centerline of the gearbox; two second output gears, respectively connected to the output shafts of the first travel motor and the second travel motor; a transmission gear, disposed inside the gearbox and located on the vertical centerline of the gearbox, the large diameter gear of the transmission gear meshing with the two second output gears; a travel output gear, disposed inside the gearbox and located on the vertical centerline of the gearbox, the small diameter gear of the transmission gear meshing with the two travel output gears; and a travel output shaft, one end of which is connected to the travel output gear.

[0008] In this solution, the first travel motor, the second travel motor, and the working motor are integrated into a gearbox, which improves the space utilization of the drive assembly and achieves a compact arrangement of the drive assembly, thereby improving space utilization. The working motor is driven by a first output gear, two first reduction gears, and two first output shafts, which transmit the power of the working motor to drive the steering pump or the working pump.

[0009] Conventional drive assemblies typically have one travel motor and a two-speed shift mechanism within the gearbox. This shift mechanism controls the loader's speed, but it is prone to damage. In this design, two travel motors are used: a first travel motor and a second travel motor. These two motors drive the loader's forward and backward movement via two second output gears, a transmission gear, a travel output gear, and a travel output shaft. By controlling the rotation of one or both travel motors, the loader's speed and traction can be adjusted. The two-stage reduction and torque amplification using the transmission gears effectively meets the loader's operational requirements.

[0010] Furthermore, all the drive and loading components are symmetrically arranged with respect to the vertical centerline of the gearbox, ensuring balanced torque application during the transmission process.

[0011] Furthermore, the lines connecting the centers of the output shafts of the first walking motor, the second walking motor, and the working motor form an isosceles triangle structure.

[0012] In order to achieve lubrication and cooling inside the drive unit, the present invention adopts a method in which the thickness of the bottom of the gearbox is greater than the thickness of the top of the gearbox, and the walking output shaft and walking output gear are partially immersed in the lubricant inside the gearbox;

[0013] During rotation, the travel output gear will throw the thicker lubricant at the bottom of the gearbox upwards, lubricating the travel output shaft and various components above the travel output gear.

[0014] The beneficial effects of this utility model are as follows: This utility model is a multi-motor drive structure device for electric loaders, which integrates a first travel motor, a second travel motor, and a working motor into a gearbox, improving the space utilization of the drive assembly and achieving a compact arrangement of the drive assembly. The working motor is driven by a first output gear, two first reduction gears, and two first output shafts, transmitting the power of the working motor to drive the steering pump or the working pump. In this solution, two travel motors are provided, namely a first travel motor and a second travel motor. In addition, the first travel motor and the second travel motor are driven by two second output gears, a speed change gear, a travel output gear, and a travel output shaft, driving the loader's forward and backward movement. By controlling the rotation of one of the travel motors or controlling the rotation of both travel motors together, the speed of the loader movement and the magnitude of the traction force can be adjusted. After adopting a two-stage reduction and torque increase using a speed change gear, the loader's operational requirements can be met. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the internal structure of the gearbox of this utility model;

[0017] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the back structure of this utility model;

[0019] In the diagram: 01-gearbox, 1-working motor, 11-first output gear, 12-first output gear, 13-first output shaft, 2-first travel motor, 21-second output gear, 22-speed change gear, 23-travel output gear, 24-travel output shaft, 3-second travel motor. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] like Figure 1-3As shown, this utility model is a multi-motor drive structure device for an electric loader, comprising: a gearbox 01; a working motor 1, the output shaft of which is located at the top midpoint inside the gearbox 01; a first output gear 11, which is disposed inside the gearbox 01 and connected to the output shaft of the working motor 1; two first reduction gears 12 meshing with the first output gear 11, which are disposed inside the gearbox 01, and the two first reduction gears 12 are symmetrically arranged on both sides of the first output gear 12 with respect to the vertical center line of the gearbox 01; two first output shafts 13, one end of which is connected to the corresponding first reduction gear 12, and the other end of which is connected to a steering pump or a working pump; a first travel motor 2, a second travel motor 3, and a third travel motor 4. The first travel motor 3 and the second travel motor 3 are symmetrically arranged on both sides of the center of the gearbox 01 with respect to the vertical center line of the gearbox 01; two second output gears 21 are respectively connected to the output shafts of the first travel motor 2 and the second travel motor 3; a transmission gear 22 is arranged in the gearbox 01 and located on the vertical center line of the gearbox 01, and the large diameter gear of the transmission gear 22 meshes with the two second output gears 22; a travel output gear 23 is arranged in the gearbox 01 and located on the vertical center line of the gearbox 01, and the small diameter gear of the transmission gear 22 meshes with the two travel output gears 23; a travel output shaft 24 is connected at one end to the travel output gear 23;

[0022] In this solution, the first travel motor 2, the second travel motor 3, and the working motor 1 are integrated into a gearbox 01, which improves the space utilization of the drive assembly and achieves a compact arrangement of the drive assembly, thereby improving space utilization. The working motor 1 is driven by a first output gear 11, two first reduction gears 12, and two first output shafts 13, which transmit the power of the working motor 1 to drive the steering pump or the working pump to work.

[0023] Conventional drive assemblies typically have one travel motor and a two-speed shifting mechanism within the gearbox 01. This shifting mechanism controls the speed of the loader's movement, but it is prone to damage. In this design, two travel motors are used: a first travel motor 2 and a second travel motor 3. These two motors are driven by two second output gears 21, a transmission gear 22, a travel output gear 23, and a travel output shaft 24. The speed of the loader can be controlled by rotating one of the travel motors or by rotating both of them together. The movement of the loader is achieved by using the first-stage reduction torque of the transmission gear 22.

[0024] Furthermore, all the drive and loading components are symmetrically arranged with respect to the vertical centerline of the gearbox 01, ensuring balanced torque application during the transmission process.

[0025] like Figure 1-3As shown, the lines connecting the centers of the output shafts of the first walking motor 2, the second walking motor 3, and the working motor 1 form an isosceles triangle structure.

[0026] like Figure 1-3 As shown, in order to achieve lubrication and cooling inside the drive unit, the thickness of the bottom of the gearbox 01 is greater than the thickness of the top of the gearbox 01, and the walking output shaft 24 and the walking output gear 23 are partially immersed in the lubricant inside the gearbox 01.

[0027] During rotation, the travel output gear 23 will throw the lubricant from the thicker part at the bottom of the gearbox 01 upwards, thus lubricating the travel output shaft 24 and the various components above the travel output gear 23.

[0028] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-motor drive structure device for an electric loader, characterized in that, include: A gearbox (01); A working motor (1) has its output shaft located at the top midpoint inside the gearbox (01); A first output gear (11) is disposed in the gearbox (01) and is connected to the output shaft of the working motor (1); Two first reduction gears (12) mesh with the first output gear (11) and are disposed inside the gearbox (01). The two first reduction gears (12) are symmetrically arranged on both sides of the first output gear (11) with respect to the vertical center line of the gearbox (01). Two first output shafts (13), one end of which is connected to the corresponding first reduction gear (12), and the other end of which is connected to the steering pump or the working pump; The first travel motor (2) and the second travel motor (3) are symmetrically arranged on both sides of the middle part of the gearbox (01) with respect to the vertical center line of the gearbox (01); Two second output gears (21) are respectively connected to the output shafts of the first walking motor (2) and the second walking motor (3); A transmission gear (22) is disposed inside the gearbox (01) and located on the vertical centerline of the gearbox (01). The major diameter gear of the transmission gear (22) meshes with the two second output gears (21). The travel output gear (23) is disposed in the gearbox (01) and located on the vertical center line of the gearbox (01). The small diameter gear of the transmission gear (22) meshes with the two travel output gears (23). The travel output shaft (24) is connected at one end to the travel output gear (23).

2. The multi-motor drive structure device for an electric loader according to claim 1, characterized in that, The center of the output shaft of the first walking motor (2), the second walking motor (3), and the working motor (1) The lines connecting them form an isosceles triangle structure.

3. The multi-motor drive structure device for an electric loader according to claim 1, characterized in that, The thickness of the bottom of the gearbox (01) is greater than the thickness of the top of the gearbox (01), and the walking output shaft (24) and walking output gear (23) are partially immersed in the lubricant inside the gearbox (01).

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