Transmission system of electric skid steer loader

Abstract

The utility model relates to the technical field of skid steer loaders, in particular to a transmission system of an electric skid steer loader, which comprises motors connected with four tires in one-to-one correspondence, a first controller and a second controller, the second controller is connected with the two motors located on the right side. According to the novel loader transmission system of the electric skid loader, on the basis of a motor, a speed reducer and a chain transmission system of a conventional electric skid loader, the technical scheme that the two sets of wheel edge motors replace an original transmission system to directly drive tires to walk is adopted, and a transmission mechanism of chain transmission of a traditional skid loader is omitted; efficiency loss and lubrication cost caused by the fact that the electric skid steer loader adopts a chain transmission mechanism are avoided, the space position of the whole machine occupied by chain transmission is saved, the transmission mode is optimized, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of skid loaders, in particular to a transmission system of an electric skid loader. Background Art

[0002] In the prior art, conventional electric skid steer loaders use a motor + reducer + chain drive system, such as Figure 1 The power battery 1 provides electricity to the travel motor 2, the travel motor 2 converts the electricity into mechanical power and transmits it to the reducer 3, and the reducer 3 transmits the power to the tire 5 through the chain drive 4 to drive the electric skid loader to move. However, the chain drive mechanism will bring efficiency loss and lubrication costs, and the chain drive occupies a large space in the entire machine. Utility Model Content

[0003] In order to solve the problems in the prior art of large occupied space and high maintenance cost of chain transmission of electric skid steer loader, the utility model provides an electric skid steer loader transmission system which reduces occupied space and maintenance cost.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A transmission system for an electric skid loader includes motors connected to four tires in a one-to-one correspondence, a first controller and a second controller, wherein the first controller is connected to the two motors on the left, and the second controller is connected to the two motors on the right.

[0006] Furthermore, the motor is a wheel-side motor. Each wheel is equipped with a wheel-side motor, eliminating the need for a chain transmission system and saving space.

[0007] Furthermore, it also includes a power battery, and the first controller and the second controller are connected to the power battery.

[0008] Furthermore, the first controller and the second controller are both two-in-one controllers.

[0009] Beneficial effects:

[0010] The utility model discloses a new electric skid loader transmission system, based on the conventional electric skid loader motor + reducer + chain transmission system, adopts two sets of wheel-side motors to replace the original transmission system to directly drive the tires to move, cancels the transmission mechanism of the traditional skid loader chain transmission, avoids the efficiency loss and lubrication cost caused by the chain transmission mechanism of the electric skid loader, saves the space occupied by the chain transmission of the whole machine, optimizes the transmission form and reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 This is a schematic diagram of the working principle of the transmission system of an electric skid loader in the prior art;

[0013] Figure 2 This is a schematic diagram of the working principle of the electric skid steer loader transmission system of the present utility model.

[0014] 1. Power battery, 2. Travel motor, 3. Reducer, 4. Chain drive, 5. Tire, 6. Two-in-one controller, 7. Wheel motor. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0017] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0018] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0019] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0020] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0021] The current design layout of traditional electric skid-steer loaders results in larger batteries due to range requirements and low battery energy density. Since skid-steer loaders are typically compact, the limited space inside the cabin makes it difficult to accommodate the batteries. The chain drive mechanism inside the cabin occupies a significant amount of space.

[0022] In this space-limited situation, wheel-side motors are introduced to replace the original chain drive mechanism, changing the original transmission form. The wheel-side motors directly drive the tires to move, thus solving the space utilization problem of battery layout. At the same time, since the original chain drive mechanism is replaced and the power is directly transmitted to the tires, the transmission efficiency of the electric skid loader is significantly improved. At the same time, since the chain drive needs regular lubrication and maintenance during operation, based on the above problems, the utility model uses wheel-side motors and eliminates the chain drive system, thereby reducing the lubrication and maintenance costs of the original chain drive system. Based on this concept, Figure 2 The present invention provides a transmission system for an electric skid steer loader, including motors connected to four tires 5 in a one-to-one correspondence, and also includes a first controller and a second controller, wherein the first controller is connected to the two motors on the left side, and the second controller is connected to the two motors on the right side. The motors can be in the form of hub motors, etc., and preferably, the motors of the present invention are wheel-side motors 7.

[0023] The electric skid loader's transmission system also includes a power battery 1, to which the first and second controllers are connected. Both the first and second controllers utilize a two-in-one controller 6. The power battery 1 provides electricity, which is distributed through the two-in-one controller 6 to the wheel-side motors 7. The wheel-side motors 7 convert the electricity into mechanical power, which is directly transmitted to the tires 5 to drive the electric skid loader. Because the skid loader's steering relies on the linear speed difference between the left and right sides, the two left wheels require a two-in-one controller 6, and both wheels rotate at the same speed. The same principle applies to the two right wheels.

[0024] This new utility model uses wheel-side motors instead of the original chain drive mechanism in the electric skid-steer loader's transmission system. This changes the original transmission method, directly driving the tires with the wheel-side motors. This significantly improves the electric skid-steer loader's transmission efficiency and reduces the lubrication and maintenance costs of the original chain drive system. It also greatly increases the internal space utilization of the electric skid-steer loader.

[0025] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An electric skid steer loader transmission system, characterized by: It comprises motors connected to the four tires (5) in a one-to-one correspondence, and also comprises a first controller and a second controller, wherein the first controller is connected to the two motors located on the left, and the second controller is connected to the two motors located on the right.

2. The electric skid steer loader transmission system according to claim 1, characterized in that: The motor is a wheel-side motor (7).

3. The electric skid steer loader transmission system according to claim 1, characterized in that: It also includes a power battery (1), and the first controller and the second controller are connected to the power battery (1).

4. The electric skid steer loader transmission system according to claim 1 or 3, characterized in that: The first controller and the second controller are both two-in-one controllers (6).

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