A road leveling device with high output torque and low noise

A low-noise, high-output technology, used in accumulator devices, roads, roads, etc., can solve the problems of complex engine structure, insufficient output torque, and inaccurate control, to ensure speed, reduce pulsation, and be economical and practical. effect of structure

Active Publication Date: 2017-11-07
TAIZHOU HAILING HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current road rollers are basically driven by engines, and the existing engines generally have problems such as overly complex structures, inaccurate control, and insufficient output torque. Therefore, we can improve the performance of road leveling devices from this aspect

Method used

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  • A road leveling device with high output torque and low noise
  • A road leveling device with high output torque and low noise
  • A road leveling device with high output torque and low noise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: as Figure 1-3The shown road leveling device with high output torque and low noise includes a road roller and an engine connected to the road roller. The engine is used to drive the road roller. The engine includes a power part, an oil injection system and a hydraulic part. The power part includes an air intake Check valve 9, power piston 10, combustion chamber 11, fuel injector 12, scavenging port 13, return piston 15, compression piston 19, hydraulic part includes compression chamber 1, pump chamber 7, return chamber 14 and hydraulic circuit, The compression chamber 1 is arranged at the rear of the engine, and a first oil port 5 and a second oil port 6 are arranged on it, and the first oil port 5 and the second oil port 6 pass through the first control valve 3 and the second oil port respectively. The second control valve 2 is connected with the compression accumulator 4, and the pump chamber 7 is respectively connected with the low-pressure oil circuit ...

Embodiment 2

[0030] Embodiment 2: as Figure 1-3 The shown road leveling device with high output torque and low noise includes a road roller and an engine connected to the road roller. The engine is used to drive the road roller. The engine includes a power part, an oil injection system and a hydraulic part. The power part includes an air intake Check valve 9, power piston 10, combustion chamber 11, fuel injector 12, scavenging port 13, return piston 15, compression piston 19, hydraulic part includes compression chamber 1, pump chamber 7, return chamber 14 and hydraulic circuit, The compression chamber 1 is arranged at the rear of the engine, and a first oil port 5 and a second oil port 6 are arranged on it, and the first oil port 5 and the second oil port 6 pass through the first control valve 3 and the second oil port respectively. The second control valve 2 is connected with the compression accumulator 4, and the pump chamber 7 is respectively connected with the low-pressure oil circuit...

Embodiment 3

[0041] Embodiment 3: as Figure 1-3 The shown road leveling device with high output torque and low noise includes a road roller and an engine connected to the road roller. The engine is used to drive the road roller. The engine includes a power part, an oil injection system and a hydraulic part. The power part includes an air intake Check valve 9, power piston 10, combustion chamber 11, fuel injector 12, scavenging port 13, return piston 15, compression piston 19, hydraulic part includes compression chamber 1, pump chamber 7, return chamber 14 and hydraulic circuit, The compression chamber 1 is arranged at the rear of the engine, and a first oil port 5 and a second oil port 6 are arranged on it, and the first oil port 5 and the second oil port 6 pass through the first control valve 3 and the second oil port respectively. The second control valve 2 is connected with the compression accumulator 4, and the pump chamber 7 is respectively connected with the low-pressure oil circuit...

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PUM

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Abstract

The invention discloses a high-output torque and low-noise road leveling device. The road leveling device comprises a road press, and an engine connected with the road press; the engine is used for driving the road press, and includes a power part, an oil spraying system and a hydraulic part; the hydraulic part includes a compression cavity, a pump cavity, a return cavity and a hydraulic loop; the compression cavity is formed in the back part of the engine, and is provided with a first oil port and a second oil port; the first oil port and the second oil port are respectively connected with a compression energy accumulator through a first control valve and a second control valve; the pump cavity is respectively connected with a low-pressure oil way and a high-pressure oil way through one-way valves; the low-pressure oil way is provided with a return control valve and a low-pressure energy accumulator; a pressure reduction valve is arranged on an oil pipeline from a high-pressure energy accumulator to a cylinder body; and a starting valve is arranged on an oil pipeline between the compression energy accumulator and the high-pressure energy accumulator. The road leveling device is simple in structure, convenient for manufacturing, high in scavenging efficiency, stable in performance and high in output torque, and designs complete control system and position detecting system.

Description

technical field [0001] The invention relates to the field of road construction, in particular to a road leveling device with high output torque and low noise. Background technique [0002] The road leveling device mainly refers to the road roller, which belongs to the category of road equipment in construction machinery. It is widely used in the filling and compacting operations of large-scale engineering projects such as high-grade highways, railways, airport runways, dams, and stadiums. It can roll sand , semi-cohesive and cohesive soil, roadbed stabilized soil and asphalt concrete pavement layer. [0003] How to further reduce the road leveling device, mainly the working energy consumption of the road roller and improve the efficiency, is a problem that people have always been concerned about. The current road rollers are basically driven by engines, and the existing engines generally have problems such as overly complex structures, inaccurate control, and insufficient o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/26F02D29/02F15B1/02
CPCE01C19/26F02D29/02F15B1/024
Inventor 丁克芳丁力顾亚军周涛沈彧
Owner TAIZHOU HAILING HYDRAULIC MACHINERY
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