Special vehicle chassis

Abstract

The invention relates to a special vehicle chassis. An input gear of a full-power power takeoff and an output shaft of an engine are connected; a first output shaft of the full-power power takeoff and vehicle-loaded equipment are connected; a second output shaft of the full-power power takeoff and a clutch are connected; the clutch is connected with a gearbox; the gearbox is connected with a first transmitting shaft; the first transmitting shaft is connected with an inter-axle decelerator which is connected with a second transmitting shaft; the second transmitting shaft is connected with a rear axle; the special vehicle chassis also comprises a controlling system which controls the inter-axle decelerator to enable a vehicle to enter a low driving speed state. According to the special vehicle chassis disclosed by the invention, the deficiency that in the prior art, the power required when the vehicle-loaded equipment works is large, so that an independent engine needs to be matched for supplying energy to the vehicle-loaded equipment is overcome, the comprehensive utilization and the reasonable matching of three techniques of the full-power power takeoff, the inter-axle decelerator and engine long-range accelerator controlling switch control are realized, and the requirements that a road sweeping vehicle, a cleaning road sweeping vehicle and a guardrail cleaning vehicle run at a low speed but the vehicle-loaded equipment needs large power to work can be well met by only using the chassis.

Description

technical field [0001] The invention belongs to the technical field of automobile chassis, and in particular relates to a special chassis for canceling the sub-engine in the top-mounted configuration of a refitted vehicle by utilizing the chassis engine to take power. Background technique [0002] Special vehicles such as road sweepers, road cleaning vehicles, guardrail cleaning vehicles, and mobile power vehicles currently used in China are required for the work of the upper equipment (working parts other than the chassis, such as fans, high-pressure water pumps, and generators). The power is high, and it will be matched with an independent engine to supply energy to the bodywork equipment, collectively referred to as auxiliary engines, that is, a special-purpose vehicle will have two engines, the engine for the chassis and the engine for the bodywork. The prior art has the following deficiencies: 1. Because the auxiliary engine needs to occupy the length and space of the b...

AI Technical Summary

Problems solved by technology

The prior art has the following deficiencies: 1. Because the auxiliary engine needs to occupy the length and space of the top-mounted equipment, other working parts can only be made in small volumes, which reduces the product efficiency of the whole vehicle. Adding water is only enough for about 30 minutes of continuous use. Frequent water addition is required during operation, which is time-consuming, energy-consuming, and inefficient; 2. The price of a set of auxiliary engines is more than 24,000 yuan (medium quality), which increases the cost of modification; 3. During work, two Two engines start at the same time, increasing the fuel consumption by more than 7L / hour; 4. Two engines emit pollutants at the same time, and the emission of the auxiliary engine usually only reaches the second level of the country, or even the first level of the country, and it is running at a high load during work, and the pollutants emitted are even higher. More, worsening emissions; 5. One more engine will increase the failure rate of the overall equipment, increase the daily maintenance costs such as changing oil and filters, reduce the reliability of the vehicle, and increase the daily maintenance costs

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