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Gearbox of motor vehicle

A technology for gearboxes and motor vehicles, applied in mechanical equipment, transmission parts, metal material coating processes, etc., can solve problems such as difficulty in meeting

Active Publication Date: 2015-09-09
沙洋县大江机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To further expand the application of aluminum alloy materials in automobile structures and powertrain systems, the existing preparation methods and manufacturing processes of aluminum alloy castings have been difficult to meet this requirement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A motor vehicle gearbox, the gearbox includes a lower box and an upper box, the lower box and the upper box are connected to form a gearbox cavity, a transmission shaft and a gear are arranged in the gearbox cavity, and the gear includes a gear Tungsten carbide coating on the surface of the body and the gear body, the inner surface of the upper box is coated with a layer of alumina-based ceramic material, the inner surface of the lower box is coated with a layer of titanium carbide-based ceramic material, the upper box and the lower box The outer surface is coated with heat-resistant paint,

[0033] It is characterized in that: the finished gear body is coated with tungsten carbide coating, the thickness of the tungsten carbide material layer is 0.3mm, the coated gear is heated to 500°C, the heating rate is 20°C / hour, and the temperature is kept for 4 Hours, then cool down to 400°C at a cooling rate of 50°C / hour, keep warm for 4 hours, then cool down to 200°C again at a...

Embodiment 2

[0041] A motor vehicle gearbox, the gearbox includes a lower box and an upper box, the lower box and the upper box are connected to form a gearbox cavity, a transmission shaft and a gear are arranged in the gearbox cavity, and the gear includes a gear Tungsten carbide coating on the surface of the body and the gear body, the inner surface of the upper box is coated with a layer of alumina-based ceramic material, the inner surface of the lower box is coated with a layer of titanium carbide-based ceramic material, the upper box and the lower box The outer surface is coated with heat-resistant paint,

[0042] It is characterized in that: the finished gear body is coated with tungsten carbide coating, the thickness of the tungsten carbide material layer is 0.3mm, the coated gear is heated to 500°C, the heating rate is 20°C / hour, and the temperature is kept for 4 Hours, then cool down to 400°C at a cooling rate of 50°C / hour, keep warm for 4 hours, then cool down to 200°C again at a...

Embodiment 3

[0050] A motor vehicle gearbox, the gearbox includes a lower box and an upper box, the lower box and the upper box are connected to form a gearbox cavity, a transmission shaft and a gear are arranged in the gearbox cavity, and the gear includes a gear Tungsten carbide coating on the surface of the body and the gear body, the inner surface of the upper box is coated with a layer of alumina-based ceramic material, the inner surface of the lower box is coated with a layer of titanium carbide-based ceramic material, the upper box and the lower box The outer surface is coated with heat-resistant paint,

[0051] It is characterized in that: the finished gear body is coated with tungsten carbide coating, the thickness of the tungsten carbide material layer is 0.3mm, the coated gear is heated to 500°C, the heating rate is 20°C / hour, and the temperature is kept for 4 Hours, then cool down to 400°C at a cooling rate of 50°C / hour, keep warm for 4 hours, then cool down to 200°C again at a...

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Abstract

A gearbox of a motor vehicle comprises a lower gearbox body and an upper gearbox body, and the lower gearbox body and the upper gearbox body are connected to form a gearbox cavity; a transmission shaft and a gear are arranged in the gearbox cavity, and the gear comprises a gear body and a tungsten carbide coating on the surface of the gear boxy; the inner surface of the upper gearbox body is coated with an aluminum oxide series ceramic material layer, and the inner surface of the lower gearbox body is coated with a titanium carbide series ceramic material layer; and the outer surface of the upper gearbox body and the outer surface of the lower gearbox body are coated with heat-resisting coatings, and aluminum alloy is simple in element; organic coatings are formed on the outer surfaces of the upper gearbox body and the lower gearbox body, weather-proof anti-pollution performance is effectively improved, and the outer surface of the gear is coated with the tungsten carbide coating, so that the wear resisting of the gear is improved.

Description

technical field [0001] The invention relates to a gearbox for a motor vehicle and belongs to the technical field of auto parts. Background technique [0002] In the fierce competition in the world automobile market, all countries are developing in the direction of high quality, high reliability, light weight, energy saving and low cost. In terms of materials, it is lightweight, replacing some steel (iron) parts with aluminum alloys, in order to meet the requirements of high-quality, low-cost development of automobiles; in terms of technology, it is scientific, using advanced technology to replace traditional technology to achieve The purpose of improving blank precision, reducing machining allowance, reducing raw material consumption, and reducing cost. To further expand the application of aluminum alloy materials in automobile structures and powertrain systems, the existing preparation methods and manufacturing processes of aluminum alloy castings have been difficult to me...

Claims

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Application Information

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IPC IPC(8): F16H55/06F16H55/17F16H57/032C22C21/00C22C1/06C22F1/04C23C22/34
CPCC04B35/10C04B35/5611C04B35/62222C04B2235/3232C04B2235/3418C04B2235/3873C04B2235/3886C04B2235/6562C04B2235/6565C08L2201/08C08L2205/03C09D5/18C09D7/61C09D7/63C09D181/06C22C1/026C22C1/03C22C1/06C22C21/00C22F1/002C22F1/04C23C22/34F16H55/06F16H55/17F16H57/032F16H2057/02017F16H2057/02043C08L33/00C08L1/28C08K13/02C08K3/16C08K3/34C08K3/22C08K5/42C08K5/17C08K3/24C08K2003/321
Inventor 田庭
Owner 沙洋县大江机械有限公司
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