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Excavator Centralized Lubrication System

overview

According to their moving mode, excavators can be divided into wheel type and track type. 1. Usually, an excavator has 18, 19 or 20 lube points. 2. For some excavators with lifting cabs, there are 8 lube points in bearing joints, 2 in oil tank, and 10 in

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Introduction of Excavator Model

A single-line centralized lubrication system is used for the lubrication of a excavator. If there is something wrong, the grease pressure sensor at the end of the single-line distributor that monitors the system in real time will send fault signal and stop alarm.The lube supply for each lube point can be set according to the real need. The fault of one lube point will not cause affects on other lube points because they are connected in parallel, which is a redundancy design.

Working principle:

When the pump starts to work, lube is transmitted to the distributor through the supply line. The grease pressure sensor at the end of the distributor works and gives feedback signals. The pressure in supply line increases till safety relief pressure, making sure quantitative lubrication for each lube point. After that, the pump stops working. The pressure in supply line relieves, so does the single-line distributor assisted by auxiliary unloading valve. This round lubrication ends with lube stored for next-round.

Introduction of Excavator Model

According to their moving mode, excavators can be divided into wheel type and track type. 1. Usually, an excavator has 18, 19 or 20 lube points. 2. For some excavators with lifting cabs, there are 8 lube points in bearing joints, 2 in oil tank, and 10 in all.

Main Components
Grease Pump

We have various ALP series high-pressure grease pumps with patented technologies which can be applicable to different lubrication solutions. Its working principle is as follows. The motor drives the piston, an element in piston pump, to do reciprocating motion, which sucks and pumps grease.

Main Technical Parameters:Main Technical Parameters:
Max working pressure: 25 MPa
Lube: 0#、1#、2#
Output: 4.5ml/min
Operating temperature: -30℃~+80℃
Working Voltage: DC24V/AC220V

Single-line Distributor

The single-line distributor in our company is parallel connected with compact structure, which is expansible and can save installation space efficiently. Each lube point is supplied independently. Thus, the fault of any feed line will not influence the operation of other lines. Moreover, there is an indicator stem in each outlet, which indicates the operation of single-line distributor clearly. It is reliable, convenient to maintain with low cost. It can meet the lube requirements of equipment in various environments. Working principle: When the pump starts to work, the pressure in supply line increases, metering valve in single-line distributor moves up to the preset position, pressing stored lubes to lube points quantitatively. After that, in the unloading system, the piston is pressed back to its original position because of spring force and the lube is stored.
Main Technical Parameters:
Working pressure: 25MPa
Output: 0.13、0.2、0.4、0.6 、0.75、1.0、1.2、1.5
Lube: NLGI 0#、1#、2#、3#
Operating temperature: -30℃~80℃

Grease Pressure Sensors

The main task of a grease pressure sensor is to monitor the operation of the system. It is installed at the end of the distributor and gives feedback signals when the pressure in the system increases to the preset pressure.
Main Technical Parameters:
Working pressure: 50-400bar
Regulating contact: Normally open contact, normal closed contact.

Components List

Part of the components to install the lube system is as follows. Detailed list is subject to the specific circumstance in the first installation.

Serial Material Code Name Model Supplier Quantity Unit Remark
(1) 04.03.2094 pump   Zhengzhou Autol 1 unit  
(2) 04.04.1006 Single line distributor ASL10-10-6C Zhengzhou Autol 1 unit  
(3) 04.04.1005 Single line distributor ASL8-8-6C Zhengzhou Autol 1 unit  
(4) 00.04.0221 pipe 14.3*7.9 Zhengzhou Autol 15 meter Cut by installation need
(5) 00.04.0222 pipe 4.0*8.6 Zhengzhou Autol 100 meter Cut by installation need
(6) 00.04.0157 Ferrule taper thread straight tube connector 10-Z1/8 Zhengzhou Autol 1 unit  
(7) 00.04.0156 Ferrule straight tube connector 10-M16*1.5 Zhengzhou Autol 2 unit  
(8) 00.04.0154 Supply line expand tubes S19*75 Zhengzhou Autol 6 unit  
(9) 00.04.0155 Supply line connector S19*40 Zhengzhou Autol 6 unit  
(10) 00.04.0129 Ferrule three-way pipe connector Φ10 Zhengzhou Autol 1 unit  
(11) 00.04.0160 Ferrule right-angle Connector Φ6-M10*1 Zhengzhou Autol 20 set  
(12) 00.04.0173 Detachable direct connector KCJ-8 Zhengzhou Autol 40 set  
(13) 00.04.0172 Detachable right-angle connector KCJL-8/D short Zhengzhou Autol 20 set  
(14) 00.02.1044 tie 8×240 Zhengzhou Autol 100 unit  
(15) 04.04.1225 hexagon bolt M8*35 Zhengzhou Autol 12 unit  
(16) 02.06.3008 flat washer Φ6 Zhengzhou Autol 12 unit  
(17)   Quality Report   Zhengzhou Autol 1 unit  
(18)   Certificate of Approval   Zhengzhou Autol 1 unit  
(20)   wiring harness   Zhengzhou Autol 1 unit

About Autol

Quality Control
With strict quality control system and quality standards, our company ensures the products’ quality.


Service
1.Customized lubrication solution for each specific excavator.
2.Training on the operation and maintenance of the system for customers.
3.Installation and adjustion of the equipment to ensure its operation.
4.For the products out of warranty, we provide lifetime maintenance. And as for the spare parts used, we will charge by unified standard.
5.We provide common easily-worn parts which costs 3% of your buying.

Packaging
Carton and wooden case
To ensure the products are easy to transport, packing can be flexible according to needs.

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