Micro-truck front-drive axle with ultra-low cargo tank floor height

Abstract

A micro-truck front-drive axle with the ultra-low cargo tank floor height comprises an axle housing assembly and wheel end assemblies rotationally arranged at the two ends of the axle housing assembly, each side wheel end assembly is provided with a brake caliper used for braking, a left transverse pull rod arm and a right transverse pull rod arm of the left wheel end assembly and the right wheel end assembly are rotationally connected through a transverse pull rod assembly, and a motor is fixed to one side of the axle housing assembly through a support. The motor is meshed with a driving gear in a gear box of the axle housing assembly through the main speed reducer assembly, and the gear box is covered with a rear cover protruding outwards. Application of the 1.5 T electric commercial vehicle in the field of front-drive steering is achieved, more space of a container chassis can be vacated through front axle front drive, the height of a no-load container floor can be reduced to 450 mm, carrying personnel can go up and down in one step, labor intensity is greatly reduced, turnover efficiency is improved, and the requirement for express delivery service transportation is met. And the system can also be applied to a plurality of scenes needing frequent cargo carrying, such as supermarket cargo transportation and moving of a moving company.

Description

Technical Field

[0001] The utility model relates to a front drive axle, in particular to a front drive axle of a micro truck with an ultra-low cargo box floor height. Background Art

[0002] With the rapid development of online shopping platforms in my country, online shopping has become an indispensable part of people's lives, and logistics is an indispensable part of online shopping, which highlights the importance of urban logistics vehicles. Logistics workers have to turn over countless goods every day. In order to reduce logistics costs and workers' labor intensity, new energy logistics vehicles with ultra-low cargo box floor height can well meet these two needs. In order to fully reduce the height of the cargo box, it is necessary to make enough space under the cargo box. Traditional mini trucks are all rear-wheel drive, and the front axle has no driving ability, which cannot effectively reduce the rear-wheel drive space. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a front-drive axle of a micro truck with an ultra-low cargo box floor height.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a front-wheel drive axle of a micro truck with an ultra-low cargo box floor height, comprising a bridge housing assembly and wheel end assemblies rotatably arranged at both ends of the bridge housing assembly, each side wheel end assembly is provided with a brake caliper for braking, the left tie rod arm and the right tie rod arm of the left and right wheel end assemblies are rotatably connected through the tie rod assembly, a motor is fixed to one side of the bridge housing assembly through a bracket, the motor is meshed with a drive gear in the gear box of the bridge housing assembly through the main reducer assembly, and the gear box part is covered with a rear cover protruding outward.

[0005] Furthermore, the wheel end assembly includes a C-shaped steering knuckle and a constant velocity drive shaft assembly passing through the steering knuckle, the inner end of the constant velocity drive shaft assembly is connected to the drive shaft in the bridge housing assembly through a universal joint, a connecting flange is fixed to the outer end of the constant velocity drive shaft assembly, a front wheel hub rotatably supported on the steering knuckle cylindrical structure is fixed to the inner side of the connecting flange, a brake disc is fixed to the inner side of the front wheel hub, and the brake caliper cooperates with the gear ring of the brake disc, and a C-shaped steering knuckle support frame is respectively provided at each end of the bridge housing assembly, and steering knuckle pins are respectively fixed to the upper and lower ends of the steering knuckle support frame, and the upper and lower ends of the steering knuckle are respectively mounted on the corresponding steering knuckle pins.

[0006] Furthermore, a portion of the constant velocity drive shaft assembly that passes through the steering knuckle is covered with a half-shaft oil seal.

[0007] Furthermore, the front wheel hub is rotatably supported on the periphery of the steering knuckle cylindrical structure through inner and outer bearings separated from each other on the left and right sides.

[0008] Furthermore, the steering knuckle at the outer end of the steering knuckle pin is covered with a kingpin dust cover, and the steering knuckle pin between the steering knuckle and the steering knuckle support frame is sleeved with an integrated needle roller bearing.

[0009] Furthermore, further, the outer end of the connecting flange is sleeved with a hub cover.

[0010] Furthermore, a steering knuckle nut is screwed onto the outer end of the steering knuckle cylindrical structure, and a locking gasket is covered on the outer side of the steering knuckle nut.

[0011] Through the above settings, the utility model realizes the application of 1.5T electric commercial vehicles in the field of front-wheel drive steering. The front-axle front-wheel drive can free up more cargo box chassis space, and the empty cargo box floor height can be as low as 450mm, which can enable the transport personnel to get on and off in one step, greatly reducing labor intensity and improving turnover efficiency. In addition to express delivery business transportation, it can also be used in supermarket cargo transportation, moving company moving and other scenes where frequent cargo transportation is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is now further described with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is an enlarged structural schematic diagram of the wheel end component of the utility model. DETAILED DESCRIPTION

[0015] like Figure 1-2 As shown, a front-wheel drive axle of a micro truck with an ultra-low cargo box floor height includes an axle housing assembly 1 and wheel end assemblies 8 rotatably arranged at both ends of the axle housing assembly 1, each side wheel end assembly 8 is provided with a brake caliper 9 for braking, the left tie rod arm 5 and the right tie rod arm 6 of the left and right wheel end assemblies 8 are rotatably connected through the tie rod assembly 4, a motor 3 is fixed to one side of the axle housing assembly 1 through a bracket, the motor 3 is meshed with a driving gear in the gear box of the axle housing assembly 1 through the main reducer assembly 2, and the gear box part is covered with a rear cover 7 protruding outward.

[0016] Specifically: the wheel end assembly 8 includes a C-shaped steering knuckle 801 and a constant velocity drive shaft assembly 802 that passes through the steering knuckle 801, the inner end of the constant velocity drive shaft assembly 802 is connected to the drive shaft in the bridge housing assembly 1 through a universal joint, the outer end of the constant velocity drive shaft assembly 802 is fixed with a connecting flange 803, the inner side of the connecting flange 803 is fixed with a front wheel hub 804 that is rotatably supported on the cylindrical structure of the steering knuckle 801, the inner side of the front wheel hub 804 is fixed with a brake disc 805, the brake caliper 9 cooperates with the gear ring of the brake disc 805, each end of the bridge housing assembly 1 is respectively provided with a C-shaped steering knuckle support frame 806, the upper and lower ends of the steering knuckle support frame 806 are respectively fixed with steering knuckle pins 807, and the upper and lower ends of the steering knuckle 801 are respectively sleeved on the corresponding steering knuckle pins 807.

[0017] In addition, the portion of the constant velocity drive shaft assembly 802 that passes through the steering knuckle 801 is covered with a half-shaft oil seal 808, the front wheel hub 804 is rotatably supported on the periphery of the cylindrical structure of the steering knuckle 801 through inner and outer bearings 809 separated on the left and right, the steering knuckle 801 at the outer end of the steering knuckle pin 807 is covered with a kingpin dust cover 810, the steering knuckle pin 807 between the steering knuckle 801 and the steering knuckle support frame 806 is sleeved with a needle roller integrated bearing 811, the outer end of the connecting flange 803 is sleeved with a wheel hub cover 812, the outer end of the cylindrical structure of the steering knuckle 801 is screwed with a steering knuckle nut 813, and the outer side of the steering knuckle nut 813 is covered with a locking gasket.

[0018] Working principle of this utility model:

[0019] When the utility model is installed, the wheel end assembly first presses the integrated needle roller bearing into the steering knuckle, inserts the half-axle oil seal into the steering knuckle, then inserts the constant velocity drive shaft assembly into the steering knuckle support frame hole, connects the steering knuckle through the steering knuckle pin, locks it with a pin lock bolt, assembles the kingpin dust cover, installs the above wheel end assembly into the bridge housing assembly through bolt connection, presses the inner and outer bearings into the front wheel hub, presses in the wheel hub oil seal and the gear ring, connects the above assembly to the brake disc through bolts, installs the above assembly into the steering knuckle assembly, screws in the steering knuckle nut, installs the locking gasket after adjusting the bearing clearance, installs the front wheel hub cover gasket, installs the connecting flange into the external spline of the constant velocity drive shaft assembly through the spline fit, tightens it with bolts, and finally installs the wheel hub cover, installs the left tie rod arm, the right tie rod arm and the tie rod assembly, and adjusts the steering angle and the front axle toe.

[0020] The utility model adopts a bridge housing assembly to connect the wheel end components on both sides, the brake part adopts a disc brake method of a brake caliper and a brake disc, the steering part connects the tie rod assembly and the steering knuckle through the left tie rod arm and the right tie rod arm to achieve steering, the power output part outputs torque from the motor to the main reducer assembly, the main reducer assembly transmits power to the constant speed drive shaft assembly, the connecting flange, and the front wheel hub, and the front wheel hub is connected to the tire to achieve power output. The utility model has a compact structure, has load-bearing, steering, braking, and driving capabilities, and is suitable for 1.5T platform electric drive front-wheel drive commercial vehicles.

[0021] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A front-drive axle for a mini truck with an ultra-low cargo box floor height, comprising an axle housing assembly (1) and wheel end assemblies (8) rotatably arranged at both ends of the axle housing assembly (1), each side wheel end assembly (8) being provided with a brake caliper (9) for braking, and a left tie rod arm (5) and a right tie rod arm (6) of the left and right wheel end assemblies (8) being rotatably connected via a tie rod assembly (4), characterized in that: A motor (3) is fixed to one side of the bridge housing assembly (1) via a bracket, and the motor (3) is meshed with a driving gear in a gear box of the bridge housing assembly (1) via a main reducer assembly (2), and the gear box portion is covered with a rear cover (7) protruding outward.

2. The front-drive axle of a micro truck with an ultra-low cargo box floor height as claimed in claim 1, characterized in that: The wheel end assembly (8) comprises a C-shaped steering knuckle (801) and a constant velocity drive shaft assembly (802) penetrating the steering knuckle (801); the inner end of the constant velocity drive shaft assembly (802) is connected to the drive shaft in the bridge housing assembly (1) through a universal joint; a connecting flange (803) is fixed to the outer end of the constant velocity drive shaft assembly (802); a front wheel hub (804) rotatably supported on the cylindrical structure of the steering knuckle (801) is fixed to the inner side of the connecting flange (803); a brake disc (805) is fixed to the inner side of the front wheel hub (804); a brake caliper (9) cooperates with the gear ring of the brake disc (805); each end of the bridge housing assembly (1) is provided with a C-shaped steering knuckle support frame (806); the upper and lower ends of the steering knuckle support frame (806) are respectively fixed with steering knuckle pins (807); the upper and lower ends of the steering knuckle (801) are respectively sleeved on the corresponding steering knuckle pins (807).

3. The front-drive axle of a micro truck with an ultra-low cargo box floor height as claimed in claim 2, characterized in that: The portion of the constant velocity drive shaft assembly (802) that passes through the steering knuckle (801) is covered with a half-shaft oil seal (808).

4. The ultra-low cargo box floor height micro truck front drive axle as claimed in claim 2, characterized in that: The front wheel hub (804) is rotatably supported on the outer periphery of the cylindrical structure of the steering knuckle (801) by inner and outer bearings (809) separated from each other on the left and right sides.

5. The front-drive axle of a micro truck with an ultra-low cargo box floor height as claimed in claim 2, characterized in that: The steering knuckle (801) at the outer end of the steering knuckle pin (807) is covered with a kingpin dust cover (810), and a needle roller integrated bearing (811) is sleeved on the steering knuckle pin (807) between the steering knuckle (801) and the steering knuckle support frame (806).

6. The front-drive axle of a micro truck with an ultra-low cargo box floor height as claimed in claim 2, characterized in that: The outer end of the connecting flange (803) is sleeved with a hub cover (812).

7. The front-drive axle of a micro truck with an ultra-low cargo box floor height as claimed in claim 2, characterized in that: A steering knuckle nut (813) is screwed onto the outer end of the cylindrical structure of the steering knuckle (801), and the outer side of the steering knuckle nut (813) is covered with a locking washer.

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