A large-tonnage parallel-shaft electric drive bridge

Abstract

This utility model relates to the field of electric drive axle technology, and in particular to a large-tonnage parallel-shaft electric drive axle. The electric drive axle includes a housing, wheel rims, a disc motor, a parking brake disc, a parking brake caliper, a hydraulic service brake caliper, and a hydraulic service brake disc. Two wheel rims are symmetrically arranged on the left and right sides of the housing. The housing is T-shaped and contains a transmission assembly. The disc motor is located on one side of the housing, and its rotation axis is parallel to the rotation axis of the wheel rims. The disc motor drives the wheel rims through the transmission assembly. The parking brake disc is located on the other side of the housing and is coaxially arranged with the rotation axis of the disc motor. The parking brake caliper is connected to the housing and brakes the parking brake disc. The hydraulic service brake disc is located between the housing and the wheel rims and is coaxially connected to the wheel rims. The hydraulic service brake caliper is connected to the housing and brakes the hydraulic service brake disc. This utility model features high transmission efficiency, small installation space, a centered center of gravity, and good stability, and can support heavy loads exceeding 20 tons.

Description

Technical Field

[0001] This utility model relates to the field of electric drive bridge technology, and in particular to a large-tonnage parallel shaft electric drive bridge. Background Technology

[0002] Existing transport vehicles, due to the large weight they need to carry, mostly use drive shafts for their drive axles, resulting in low utilization of the vehicle's interior space. Ordinary parallel-shaft electric drive axles have limited load capacity, and their braking methods are also limited, making it difficult to meet the transport needs of loads exceeding 20 tons. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a large-tonnage parallel shaft electric drive axle, which has the advantages of small installation space, good braking effect, good stability and high load-bearing capacity.

[0004] This utility model provides a large-tonnage parallel-shaft electric drive axle, including a housing, wheel rims, a disc motor, a parking brake disc, a parking brake caliper, a hydraulic service brake caliper, and a hydraulic service brake disc. Two wheel rims are symmetrically arranged on the left and right sides of the housing. The housing is T-shaped and contains a transmission assembly. The disc motor is located on one side of the housing, and its rotation axis is parallel to the rotation axis of the wheel rim. The disc motor drives the wheel rim through the transmission assembly. The parking brake disc is located on the other side of the housing and is coaxially arranged with the rotation axis of the disc motor. The parking brake caliper is connected to the housing and brakes the parking brake disc. The hydraulic service brake disc is located between the housing and the wheel rim and is coaxially connected to the wheel rim. The hydraulic service brake caliper is connected to the housing and brakes the hydraulic service brake disc.

[0005] Furthermore, a fixing plate is provided between the housing and the parking brake disc. The fixing plate extends from one side of the parking brake disc, and the parking brake caliper is mounted on one side of the parking brake disc through the fixing plate. The parking brake caliper brakes the parking brake disc by clamping it on one side.

[0006] Furthermore, the housing has a second fixing plate on the side near the hydraulic vehicular brake disc. The two fixing plates are symmetrically arranged on both sides of the housing. The arc-shaped hydraulic vehicular brake caliper is arranged along the side wall of the housing and its two ends are respectively connected to the two fixing plates.

[0007] Furthermore, two hydraulic calipers are symmetrically positioned on both sides of the hydraulic caliper disc and apply braking force to it.

[0008] Furthermore, the shell is made in one piece.

[0009] By adopting the above technical solution, the beneficial effects of this utility model are: This invention uses an integrated housing to fix the motor and wheel rim for transmission, improving connection strength and transmission efficiency while significantly reducing installation space. By incorporating a disc motor and utilizing axial magnetic flux characteristics, the strength of the axial parallel drive is increased. A parking brake caliper is installed at the rotating shaft end of the disc motor, which balances the overall center of gravity of the electric drive axle, improves the stability of the transport vehicle, and adds a braking method to the electric drive axle, making it more suitable for heavy loads of at least 20 tons.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0011] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0012] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.

[0014] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a large-tonnage parallel-shaft electric drive bridge according to the present invention; Figure 2 This is a top view of a large-tonnage parallel-shaft electric drive bridge according to the present invention; Figure 3 This is a schematic diagram of the structural separation of a large-tonnage parallel-shaft electric drive bridge according to this utility model from another perspective; Explanation of key figure labels: 1. Shell; 2. Wheel rim; 3. Disc motor; 4. Parking brake disc; 5. Parking brake caliper; 6. Hydraulic service brake calipers; 7. Hydraulic service brake disc; 8. Fixing plate one; 9. Fixing plate two. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1-3 This utility model provides a large-tonnage parallel-shaft electric drive axle, including a housing 1, wheel rims 2, a disc motor 3, a parking brake disc 4, a parking brake caliper 5, a hydraulic service brake caliper 6, and a hydraulic service brake disc 7. The housing 1 is integrally formed, with two wheel rims 2 symmetrically arranged on the left and right sides of the housing 1. The housing 1 is T-shaped and contains a transmission assembly, which is a conventional parallel-shaft transmission assembly and will not be described in detail herein. The disc motor 3 is located on one side of the housing 1, and its rotation axis is parallel to the rotation axis of the wheel rims 2. The disc motor 3 drives the wheel rims 2 through the transmission assembly, thereby driving the vehicle. The parking brake disc 4 is located on the other side of the housing 1 and is coaxially mounted with the rotating shaft of the disc motor 3. The parking brake caliper 5 is connected to the housing 1 and brakes the parking brake disc 4, thereby achieving parking braking of the vehicle. The specific connection method of the parking brake caliper 5 is as follows: a fixing plate 8 is provided between the housing 1 and the parking brake disc 4. The fixing plate 8 protrudes from one side of the parking brake disc 4, and the parking brake caliper 5 is mounted on one side of the parking brake disc 4 through the fixing plate 8. The parking brake caliper 5 brakes the parking brake disc 4 by clamping it on one side. The hydraulic service brake disc 7 is located between the housing 1 and the wheel rim 2 and is coaxially connected with the wheel rim 2. The hydraulic service brake caliper 6 is connected to the housing 1 and brakes the hydraulic service brake disc 7. The specific connection method of the hydraulic service brake caliper 6 is as follows: A fixing plate 2 9 is provided on the side of the housing 1 near the hydraulic service brake disc 7. Two fixing plates 2 9 are symmetrically arranged on both sides of the housing 1. The arc-shaped hydraulic service brake caliper 6 is arranged along the side wall of the housing 1, and its two ends are respectively connected to the two fixing plates 2 9. To improve braking strength, the two hydraulic service brake calipers 6 are symmetrically arranged on both sides of the hydraulic service brake disc 7 and apply braking force to it, thereby achieving vehicle service braking.

[0019] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0020] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0021] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A large-tonnage parallel-shaft electric drive axle, characterized in that, The device includes a housing, wheel rims, a disc motor, a parking brake disc, a parking brake caliper, a hydraulic service brake caliper, and a hydraulic service brake disc. Two wheel rims are symmetrically arranged on the left and right sides of the housing, which is T-shaped and contains a transmission assembly. The disc motor is located on one side of the housing, and its rotation axis is parallel to the rotation axis of the wheel rim. The disc motor drives the wheel rim through the transmission assembly. The parking brake disc is located on the other side of the housing and is coaxially arranged with the rotation axis of the disc motor. The parking brake caliper is connected to the housing and brakes the parking brake disc. The hydraulic service brake disc is located between the housing and the wheel rim and is coaxially connected to the wheel rim. The hydraulic service brake caliper is connected to the housing and brakes the hydraulic service brake disc.

2. The large-tonnage parallel-shaft electric drive axle according to claim 1, characterized in that, A fixing plate is provided between the housing and the parking brake disc. The fixing plate extends from one side of the parking brake disc. The parking brake caliper is mounted on one side of the parking brake disc through the fixing plate. The parking brake caliper brakes the parking brake disc by clamping it on one side.

3. The large-tonnage parallel-shaft electric drive axle according to claim 1, characterized in that, The housing has a fixing plate 2 on one side near the hydraulic vehicular brake disc. The two fixing plates 2 are symmetrically arranged on both sides of the housing. The arc-shaped hydraulic vehicular brake caliper is arranged along the side wall of the housing and its two ends are respectively connected to the two fixing plates 2.

4. The large-tonnage parallel-shaft electric drive axle according to claim 3, characterized in that, Two hydraulic gantry brake calipers are symmetrically positioned on both sides of the hydraulic gantry brake disc and apply braking force to it.

5. The large-tonnage parallel-shaft electric drive axle according to claim 1, characterized in that, The housing is made in one piece.

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