Rear frame of electric loader

Abstract

The utility model discloses a rear frame of an electric loader, which belongs to the technical field of frames of electric loaders and comprises a bottom plate, and battery frame rear supports are arranged on two sides of the bottom plate. A double-stud tail plate is arranged at one end of the bottom plate, and a middle beam frame is arranged at the other end of the bottom plate; first side plates are arranged on the two sides of the middle beam frame, a second side plate is arranged at one end of each first side plate, a cab rear support is arranged on the upper portion of each second side plate, and a rear axle support is arranged on the side portion of each second side plate. A hinged frame is arranged at one end of the middle beam frame, and the two sides of the hinged frame are connected with the second side plates. Enough installation space is provided, the space utilization rate is high, arrangement of working modules is facilitated, and later installation and maintenance work is facilitated; a circuit pipeline and a hydraulic pipeline can be reasonably arranged, and line friction damage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric loader frames, in particular to a rear frame of an electric loader. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] A loader is a type of earthmoving machinery widely used in construction projects such as highways, railways, buildings, hydropower stations, ports, and mines. It is primarily used for loading bulk materials such as soil, sand, gravel, lime, and coal, and can also perform light excavation of ore and hard soil. By equipping it with various auxiliary devices, it can also perform bulldozing, lifting, and loading and unloading of other materials such as wood.

[0004] Pure electric loaders need to install three power batteries, and the batteries are too large and heavy, requiring high-precision positioning and installation. In addition, the normal use and convenient maintenance of the working motor and travel motor must be guaranteed. At present, the internal space of the small-tonnage electric loader frame is compact, the working space is small, and large tools and equipment cannot be used. It is not convenient to arrange the working modules, which limits the efficiency and quality of installation and maintenance work. In addition, the layout of the circuit pipelines and hydraulic pipelines is complex and the internal space is tight, making it difficult to arrange. At present, it is difficult to ensure that the lines will not be damaged by friction on the frame. Utility Model Content

[0005] In response to the above problems, the utility model provides an electric loader rear frame with sufficient installation space and high space utilization, which is convenient for the arrangement of working modules and facilitates subsequent installation and maintenance work; the circuit pipelines and hydraulic pipelines can be reasonably arranged to avoid line friction damage.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A rear frame of an electric loader includes a base plate, battery frame rear supports are arranged on both sides of the base plate; a double-stiffened tail plate is arranged at one end of the base plate, and a center beam frame is arranged at the other end of the base plate; first side panels are arranged on both sides of the center beam frame, a second side panel is arranged at one end of the first side panel, a cab rear support is arranged on the upper part of the second side panel, and a rear axle bracket is arranged on the side of the second side panel; an articulated frame is arranged at one end of the center beam frame, and both sides of the articulated frame are connected to the second side panels.

[0008] Furthermore, a square hole is provided in the middle of the bottom plate, and the bottom plate is fixedly connected to the rear support of the battery frame.

[0009] Furthermore, the bottom plate is fixedly connected to the double-stiffened tail plate, and the double-stiffened tail plate is formed by welding the double-stiffened plate and the tail plate, and the double-stiffened plate and the tail plate are fixedly connected.

[0010] Furthermore, the bottom plate is fixedly connected to the center beam frame, and a square hole is provided in the middle of the center beam frame.

[0011] Furthermore, the first side panel is fixedly connected to the center beam frame, and one end of the first side panel is a bent structure.

[0012] Furthermore, maintenance holes are provided at the upper and lower ends of the first side panel. The maintenance hole at the upper end of the first side panel is a circular hole, and the maintenance hole at the lower end of the first side panel is an oblong hole.

[0013] Furthermore, the first side plate is fixedly connected to the second side plate, a channel steel is provided on the inner side of the second side plate, and the channel steel is fixedly connected to the second side plate.

[0014] Furthermore, the second side plate is fixedly connected to the rear axle bracket, and the rear axle bracket is provided with a mounting hole.

[0015] Furthermore, the second side panel is fixedly connected to the rear support of the cab, and the rear support of the cab is provided with a mounting hole.

[0016] Furthermore, the second side plate is fixedly connected to the hinge frame, a circular hole is provided in the middle of the hinge frame, and a plurality of small circular holes are provided at intervals around the circular hole.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] 1. The electric loader of this utility model has a welded rear frame with high overall strength and simple structure. First, the first side panel is bent to increase the internal space. Channel steel is welded to the side panel and moved upward to increase the frame strength, providing a mounting position for the travel motor. The center beam is welded to the side panel to provide a mounting position for the working motor and battery frame, and also serves as a connection to the rear floor. A supported cab support is used to ensure a firm and reliable connection to the frame as a whole. The rear axle bracket is welded to the side panel through a cut surface and reinforced by welding on top to reduce stress concentration and improve the strength of the rear axle. Double-reinforced vertical plates are welded to the rear tail panel, increasing strength and rigidity while providing installation space for the radiator and water pump. It has sufficient installation space and high space utilization, which facilitates the layout of working modules. The ample space is also convenient for piping layout, ensuring that the circuit pipelines and hydraulic pipelines can be arranged reasonably to avoid line friction damage.

[0019] 2. The rear frame of the utility model is assembled with each module, and a maintenance hole is reserved on the first side panel to facilitate battery maintenance, thereby reducing maintenance costs; the working motor is arranged at the right front of the rear frame, and the travel motor is arranged at the left front of the rear frame. When the working motor and the travel motor are repaired, they can be maintained only from the bottom of the vehicle body, avoiding the need to dismantle the cab upwards for installation, thereby greatly reducing maintenance costs and shortening maintenance time; the battery frame is arranged at the rear of the rear frame, and holes are opened in the bottom plate and the center beam to ensure air intake while also facilitating loading and unloading and maintenance. The entire rear frame has a compact structure and extremely high space utilization.

[0020] 3. The frame of the present invention fully considers the requirements of welding technology in its design, optimizes the structural design and weld layout, reduces welding difficulty and deformation, and by changing the welding sequence, pairs the frames in an inverted manner, and adopts butt welding from the middle to both sides; the main structure is welded first, and then the secondary structure, which reduces the heat-affected zone and welding stress, and facilitates welding while ensuring installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 This is a three-dimensional structural diagram of the rear frame of the electric loader of the present utility model;

[0023] In the figure: 1. Channel steel; 2. Cab rear support; 3. Center beam frame; 4. First side panel; 5. Battery frame rear support; 6. Double-stiffened tail plate; 7. Rear axle bracket; 8. Maintenance hole; 9. Articulated frame; 10. Bottom plate; 11. Second side panel. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] Pure electric loaders need to install three power batteries, and the batteries are too large and heavy, requiring high-precision positioning and installation. In addition, the normal use and convenient maintenance of the working motor and travel motor must be guaranteed. At present, the internal space of the small-tonnage electric loader frame is compact, the working space is small, and large tools and equipment cannot be used. It is not convenient to arrange the working modules, which limits the efficiency and quality of installation and maintenance work. In addition, the layout of the circuit pipelines and hydraulic pipelines is complex and the internal space is tight, making it difficult to arrange. At present, it is difficult to ensure that the lines will not be damaged by friction on the frame.

[0026] The utility model is described in detail below with reference to the accompanying drawings. The embodiment discloses an electric loader rear frame, such as Figure 1 As shown, it includes a base plate 10, and battery frame rear supports 5 are arranged on both sides of the base plate 10; a double-stiffened tail plate 6 is arranged at one end of the base plate 10, and a center beam frame 3 is arranged at the other end of the base plate 10; first side panels 4 are arranged on both sides of the center beam frame 3, a second side panel 11 is arranged at one end of the first side panel 4, a cab rear support 2 is arranged on the upper part of the second side panel 11, and a rear axle bracket 7 is arranged on the side of the second side panel 11; an articulated frame 9 is arranged at one end of the center beam frame 3, and both sides of the articulated frame 9 are connected to the second side panel 11.

[0027] The electric loader has a welded rear frame with high overall strength and simple structure. It has sufficient installation space and high space utilization, which is convenient for the layout of working modules. The sufficient space is convenient for pipeline layout, ensuring that the circuit pipelines and hydraulic pipelines can be arranged reasonably to avoid line friction damage.

[0028] A square hole is provided in the middle of the bottom plate 10, which is fixedly connected to the battery frame rear support 5. The battery frame is arranged behind the rear frame. The holes in the bottom plate 10 and the center beam 3 ensure air intake while facilitating loading and unloading and maintenance. The entire rear frame structure is compact and space utilization is extremely high.

[0029] The bottom plate 10 is fixedly connected to the double-stiffened tail plate 6, which is welded together by a double-stiffened plate and a tail plate. The double-stiffened plate and tail plate are welded together to increase strength and rigidity while providing space for the radiator and water pump.

[0030] The bottom plate 10 is fixedly connected to the center beam 3, and a square hole is set in the middle of the center beam 3. The center beam 3 is welded to the side plate to provide a mounting position for the working motor and battery frame, and also serves to connect the rear bottom plate 10, facilitating the installation of the working motor and battery frame.

[0031] The first side panel 4 is fixedly connected to the center beam 3 and has a bent end. Maintenance holes 8 are provided at the upper and lower ends of the first side panel 4. The maintenance hole 8 at the upper end of the first side panel 4 is a circular hole, while the maintenance hole 8 at the lower end of the first side panel 4 is an oblong hole. The bent structure of the first side panel 4 increases internal space, and the reserved maintenance holes 8 on the first side panel 4 facilitate battery maintenance, reducing maintenance costs.

[0032] The working motor is arranged at the right front of the rear frame, and the travel motor is arranged at the left front of the rear frame. When inspecting and repairing the working motor and the travel motor, they can be maintained only from the bottom of the vehicle body, avoiding the need to dismantle the cab upwards for installation, thereby greatly reducing maintenance costs and time.

[0033] The first side plate 4 is fixedly connected to the second side plate 11, and a channel steel 1 is provided on the inner side of the second side plate 11, and the channel steel 1 is fixedly connected to the second side plate 11. The channel steel 1 is welded on the second side plate 11 to increase the strength of the frame and provide a mounting position for the travel motor, thereby facilitating the installation of the travel motor.

[0034] The second side panel 11 is fixedly connected to the rear axle bracket 7, which is provided with mounting holes. The rear axle bracket 7 is welded to the side panel through a cross-section and reinforced with top welding to reduce stress concentration and improve rear axle strength. The second side panel 11 is fixedly connected to the cab rear support 2, which is provided with mounting holes. The use of a supported cab support ensures a secure and reliable connection to the vehicle frame. The symmetrical arrangement of the cab rear support 2 ensures stable installation.

[0035] The frame design fully considers the requirements of welding technology, optimizes the structural design and weld layout, reduces welding difficulty and deformation, and changes the welding sequence to pair the frames in an inverted manner, using butt welding from the middle to both sides; the main structure is welded first, then the secondary structure, reducing the heat-affected zone and welding stress, facilitating welding while ensuring installation accuracy.

[0036] The second side plate 11 is fixedly connected to the articulated frame 9, and a circular hole is set in the middle of the articulated frame 9, and a plurality of small circular holes are set at intervals around the circular hole. The arrangement of the articulated frame 9 makes the steering flexible, the turning radius is small, and the whole vehicle body is more stable and the failure rate is low.

[0037] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. An electric loader rear frame, characterized in that: It includes a bottom plate, and battery frame rear supports are arranged on both sides of the bottom plate; a double-stiffened tail plate is arranged at one end of the bottom plate, and a center beam frame is arranged at the other end of the bottom plate; first side panels are arranged on both sides of the center beam frame, a second side panel is arranged at one end of the first side panel, a cab rear support is arranged on the upper part of the second side panel, and a rear axle bracket is arranged on the side of the second side panel; an articulated frame is arranged at one end of the center beam frame, and both sides of the articulated frame are connected to the second side panels.

2. The rear frame of an electric loader according to claim 1, characterized in that: A square hole is provided in the middle of the bottom plate, and the bottom plate is fixedly connected to the rear support of the battery frame.

3. The rear frame of an electric loader according to claim 1, characterized in that: The bottom plate is fixedly connected to the double-stiffened tail plate, and the double-stiffened tail plate is formed by welding the double-stiffened plate and the tail plate, and the double-stiffened plate and the tail plate are fixedly connected.

4. The rear frame of an electric loader according to claim 1, characterized in that: The bottom plate is fixedly connected to the center beam frame, and a square hole is provided in the middle of the center beam frame.

5. The rear frame of an electric loader according to claim 1, characterized in that: The first side plate is fixedly connected to the center beam frame, and one end of the first side plate is a bent structure.

6. The rear frame of an electric loader according to claim 5, characterized in that: Maintenance holes are provided at the upper and lower ends of the first side plate. The maintenance hole at the upper end of the first side plate is a circular hole, and the maintenance hole at the lower end of the first side plate is an oblong hole.

7. The rear frame of an electric loader according to claim 1, characterized in that: The first side plate is fixedly connected to the second side plate. A channel steel is provided on the inner side of the second side plate, and the channel steel is fixedly connected to the second side plate.

8. The rear frame of an electric loader according to claim 1, characterized in that: The second side plate is fixedly connected to the rear axle bracket, and the rear axle bracket is provided with a mounting hole.

9. The rear frame of an electric loader according to claim 1, characterized in that: The second side plate is fixedly connected to the rear support of the cab, and the rear support of the cab is provided with a mounting hole.

10. The rear frame of an electric loader according to claim 1, characterized in that: The second side plate is fixedly connected to the hinge frame. A circular hole is provided in the middle of the hinge frame, and a plurality of small circular holes are provided at intervals around the circular hole.

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