3-ton electric drive axle assembly

Abstract

The utility model discloses a 3-tonnage electric drive axle assembly, which belongs to the field of electric drive axle assemblies and comprises an electric drive axle housing assembly, a motor and brake assembly is arranged on one side of the electric drive axle housing assembly, a high-speed motor is arranged at the left end of the motor and brake assembly, a speed reducing motor assembly is arranged at the right end of the motor and brake assembly, and the speed reducing motor assembly is connected with the motor and brake assembly. A central parking brake assembly is arranged at one end of the gear motor assembly; after the 3-ton electric drive axle assembly is installed on an electric drive vehicle, a proper power source is connected to a high-speed motor, rotation of the motor is achieved under the strategy of an electric vehicle controller, and after the motor rotates, speed reduction and torque increasing are achieved through a speed reducer, and a left half shaft and a right half shaft are driven; the left half shaft and the right half shaft simultaneously drive the hubs and the brake drums to rotate to drive the automobile to roll forwards or backwards to achieve transportation and bearing capacity, the electric drive axle housing assembly is integrally cast and formed, rigidity is good, the problem of oil leakage of a stamping and welding axle housing is solved, and the integrally cast and formed axle housing material has good NVH performance.

Description

Technical Field

[0001] This utility model relates to the field of electric drive axle assembly technology, specifically a 3-ton electric drive axle assembly. Background Technology

[0002] The electric drive axle assembly is a crucial component of electric and hybrid vehicles, primarily responsible for converting electrical energy into mechanical energy to propel the vehicle. It's equivalent to the powertrain (engine ± transmission) of a traditional gasoline-powered vehicle, serving as the "heart" of the electric car. The main function of the electric drive axle assembly is to convert the electrical energy stored in the battery into mechanical energy via an electric motor, thereby driving the vehicle. It includes components such as the electric motor, reducer, axle housing assembly, and braking system, which together enable the vehicle's driving and braking functions. The design process of the electric drive axle assembly includes requirements input, planning, and detailed design steps. The design must consider high efficiency, high torque density, high reliability, and good NVH performance. Manufacturing technology includes the design and assembly of the electric motor controller and transmission mechanism to ensure the reliable operation of the electric drive axle assembly.

[0003] Therefore, this utility model provides a 3-ton electric drive axle assembly to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] This utility model provides a 3-ton electric drive axle assembly, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a 3-ton electric drive axle assembly, including an electric drive axle housing assembly, a motor and brake assembly disposed on one side of the electric drive axle housing assembly, a high-speed motor disposed on the left end of the motor and brake assembly, a reduction motor assembly disposed on the right end of the motor and brake assembly, a central parking brake assembly disposed on one end of the reduction motor assembly, a plurality of reduction fixing bolts disposed on one side of the reduction motor assembly, shock absorber bracket assemblies disposed at both ends of the electric drive axle housing assembly, and shock absorbers disposed on the shock absorber bracket assemblies.

[0007] As a preferred technical solution of this application, leaf springs are provided at both ends of the electric drive bridge housing assembly, and leaf springs have central holes.

[0008] As a preferred technical solution of this application, the electric drive bridge housing assembly is provided with U-bolts at both ends, and the U-bolts are provided with a plurality of U-bolt holes.

[0009] As a preferred technical solution of this application, the electric drive axle housing assembly is provided with service brake assemblies at both ends, one end of the service brake assembly is provided with a brake drum, and one end of the brake drum is provided with a wheel hub.

[0010] As a preferred technical solution of this application, a number of tire bolts are provided on one side of the wheel hub, a half shaft is provided at one end of the brake drum, and a number of half shaft fixing bolts are provided at one end of the half shaft.

[0011] As a preferred technical solution of this application, the half shaft is provided with a plurality of tire bolt mounting distribution circles, and one end of the half shaft is provided with a rim mounting stop.

[0012] As a preferred technical solution of this application, a vent plug assembly is provided on one side of the electric drive bridge housing assembly.

[0013] After installing the 3-ton electric drive axle assembly on the electric vehicle, the high-speed motor is powered by an appropriate power supply. Under the strategy of the electric vehicle controller, the motor rotates. After the motor rotates, the speed reduction and torque increase are achieved through the reducer, which drives the left and right half shafts. The left and right half shafts simultaneously drive the wheel hubs and brake drums to rotate, driving the car forward or backward to achieve transportation and load-bearing capacity. The electric drive axle housing assembly is integrally cast, which has good rigidity and solves the oil leakage problem of the stamped and welded axle housing. The integrally cast axle housing material has good NVH performance. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0016] Figure 3 This is a top view of the overall structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall right-side structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the overall left-side structure of this utility model.

[0019] In the picture:

[0020] 100. Electric drive axle housing assembly; 101. Motor and brake assembly; 102. High-speed motor; 103. Gear motor assembly; 104. Gear reducer fixing bolt; 105. Central parking brake assembly; 106. Shock absorber bracket assembly; 107. Shock absorber; 108. Brake drum; 109. Wheel hub; 200. Tire bolts; 201. Half shaft; 202. Half shaft fixing bolt; 203. Leaf spring; 204. Leaf spring center hole; 205. U-bolt hole; 206. U-bolt; 207. Service brake assembly; 208. Tire bolt mounting distribution circle; 209. Wheel rim mounting stop; 300. Breather plug assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a 3-ton electric drive axle assembly, such as Figure 1-5 As shown, this 3-ton electric drive axle assembly includes an electric drive axle housing assembly 100. A motor and brake assembly 101 is provided on one side of the electric drive axle housing assembly 100. A high-speed motor 102 is provided at the left end of the motor and brake assembly 101. A reduction motor assembly 103 is provided at the right end of the motor and brake assembly 101. A central parking brake assembly 105 is provided at one end of the reduction motor assembly 103. Several reduction fixing bolts 104 are provided on one side of the reduction motor assembly 103. Shock absorber bracket assemblies 106 are provided at both ends of the electric drive axle housing assembly 100. Shock absorbers 107 are provided on the shock absorber bracket assemblies 106. The eccentricity of the electric drive axle housing assembly 100 is 90±10, the mounting distance of the shock absorber 107 is 591±2, the mounting center height of the shock absorber 107 is 110±2, the mounting distance of the shock absorber 107 in the front-rear direction is 240±1, and the mounting distance of the shock absorber 107 in the front-rear direction is 88±1.

[0023] Leaf springs 203 are provided at both ends of the electric drive bridge housing assembly 100, and leaf springs 203 have a leaf spring center hole 204. The mounting distance between the two sides of the leaf spring 203 is 910±1, and the diameter of the leaf spring center hole 204 is 16.5 and the depth is 12.

[0024] The electric drive bridge housing assembly 100 has U-bolts 206 at both ends, and the U-bolts 206 have several U-bolt holes 205. The clamping distance of the U-bolts 206 is 138±1, the left-right mounting distance of the U-bolts 206 is 75±0.2, the diameter of the U-bolt holes 205 is 17, and the front-to-back mounting distance of the U-bolt holes 205 is 140±0.2.

[0025] The electric drive axle housing assembly 100 is provided with a service brake assembly 207 at both ends. A brake drum 108 is provided at one end of the service brake assembly 207, and a wheel hub 109 is provided at one end of the brake drum 108.

[0026] Several tire bolts 200 are provided on one side of the wheel hub 109, and a half shaft 201 is provided at one end of the brake drum 108. Several half shaft fixing bolts 202 are provided at one end of the half shaft 201. The specifications of the tire bolts 200 are 16×1.5.

[0027] The half-shaft 201 is provided with several tire bolt mounting distribution circles 208, and one end of the half-shaft 201 is provided with a rim mounting stop 209.

[0028] A vent plug assembly 300 is provided on one side of the electric drive bridge housing assembly 100.

[0029] In summary: After the 3-ton electric drive axle assembly is installed on the electric vehicle, a suitable power supply is applied to the high-speed motor 102, and the motor rotates under the strategy of the electric vehicle controller. After the motor rotates, the speed reduction and torque increase are achieved through the reducer, which drives the left and right half shafts 201. The left and right half shafts 201 simultaneously drive the wheel hub 109 and the brake drum 108 to rotate, driving the vehicle to roll forward or backward to achieve transportation and load-bearing capacity. The electric drive axle housing assembly 100 is integrally cast, which has good rigidity and solves the oil leakage problem of the stamped and welded axle housing. The integrally cast axle housing material has good NVH performance.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A 3-ton electric drive axle assembly comprising an electric drive axle housing assembly (100), characterized in that: A motor and brake assembly (101) is provided on one side of the electric drive axle housing assembly (100). A high-speed motor (102) is provided at the left end of the motor and brake assembly (101). A geared motor assembly (103) is provided at the right end of the motor and brake assembly (101). A central parking brake assembly (105) is provided at one end of the geared motor assembly (103). A plurality of geared fixing bolts (104) are provided on one side of the geared motor assembly (103). Shock absorber bracket assemblies (106) are provided at both ends of the electric drive axle housing assembly (100). Shock absorbers (107) are provided on the shock absorber bracket assembly (106).

2. The electric drive axle assembly of claim 1, wherein: The electric drive bridge housing assembly (100) is provided with leaf springs (203) at both ends, and leaf springs (203) are provided with leaf spring center holes (204).

3. The electric drive axle assembly of claim 1, wherein: The electric drive axle housing assembly (100) is provided with U-bolts (206) at both ends, and the U-bolts (206) are provided with a plurality of U-bolt holes (205).

4. The electric drive axle assembly of claim 1, wherein: The electric drive axle housing assembly (100) is provided with a service brake assembly (207) at both ends, and a brake drum (108) is provided at one end of the service brake assembly (207), and a wheel hub (109) is provided at one end of the brake drum (108).

5. The electric drive axle assembly of claim 4, wherein: A number of tire bolts (200) are provided on one side of the wheel hub (109), and a half shaft (201) is provided at one end of the brake drum (108), and a number of half shaft fixing bolts (202) are provided at one end of the half shaft (201).

6. The electric drive axle assembly of claim 5, wherein: The half-shaft (201) is provided with a plurality of tire bolt mounting distribution circles (208), and one end of the half-shaft (201) is provided with a rim mounting stop (209).

7. The 3-ton electric drive axle assembly of claim 1, wherein: A vent assembly (300) is provided on one side of the electric drive bridge housing assembly (100).

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