Ten requirements for general technical conditions of hydraulic system in mechanical equipment

General requirements:

1, the basic requirements:

The design, manufacture and use of hydraulic system in Jinze hydraulic plant shall meet the following requirements:

Personnel safety; normal operation; long service life; easy maintenance; low cost

2, safety requirements:

Various possible accidents should be taken into account in the design system of Jinze hydraulic plant. The choice of components, applications, configuration and regulation, should first consider the safety of personnel; once the accident occurs, the equipment should be the smallest damage.

(1) overvoltage protection must be provided in the system.

(2) the design of the system, should make the element is easy to dismantle, and must be able to safely adjust and work.

(3) the design and adjustment of the system must minimize the impact pressure. Impact pressure and pressure loss should not be dangerous.

(4) all components in the system must have a certificate of conformity.

(5) all components in the system shall be operated in accordance with the requirements of the Jinze hydraulic plant.

(6) in serious pollution and high humidity, flammable environment and high altitude (above 1000m), the hydraulic system using the cold zone and other special circumstances, Jinze hydraulic factory and Design Institute and the user must agree on the special requirements of the site use.

3, working temperature

When designing the system, it is necessary to reduce the heat of the system to the minimum degree in the investigation and study of the customer condition of Jinze hydraulic plant. The ambient temperature range of the equipment must be specified. When the temperature is the highest, the use of hydraulic oil system, in addition to special provisions, the hydraulic pump inlet temperature should not exceed 60 degrees celsius. When the ambient temperature is low, the equipment must be able to work properly.

4, component disassembly

For ease of maintenance, Jinze hydraulic plant Description: when the system components can not be removed when the demolition of a large number of working fluid loss, do not have to remove a large number of adjacent parts, and does not require fuel tanks, etc..

5, lifting measures

All components, components or equipment with a mass exceeding 15 kg must be easily lifted or equipped with a lifting device.

6, equipment installation and maintenance information

(1) the installation of the equipment shall be carried out in accordance with the provisions of the Jinze hydraulic works.

(2) Jinze hydraulic plant shall provide users with the basic installation requirements of hydraulic equipment and piping auxiliary.

(3) the Jinze hydraulic plant must provide the user with the manual or technical data of the hydraulic equipment:

Schematic diagram of hydraulic system principle diagram and pipeline, including the hydraulic components of the type, specification list; pressure of each hydraulic control valve setting; charging system requirements to the highest level of oil; the working liquid viscosity range and variety; electrical and mechanical control element operation time schedule on the both ends of the pipeline are; identification mark.

Hydraulic system working principle and instructions.

Hydraulic system debugging methods and procedures

The structure and working principle of special hydraulic components, assembling and disassembling method and disassembling tool.

Method for repairing special components and parts

Requirements for regular testing and maintenance of test points, oil outlets, oil drain, sampling port, oil filter, etc.

Common troubles and troubleshooting of hydraulic system

7, test

Jinze hydraulic plant in the test of hydraulic system:

(1) the performance test shall be carried out in accordance with the regulations or agreements to determine whether the performance meets the requirements of this standard and design

(2) no leakage of hydraulic system.

8, transportation and packaging

(1) when the equipment is required to be transported in sections, the identification marks shall be marked on the removed pipes and their corresponding end holes or joints.

(2) all equipment must be packed in good condition to prevent damage and deformation and to maintain its identification marks during transit.

(3) the exposed surface of hydraulic equipment shall be sealed by sealing cap, and the external thread must be protected during shipment.

9, logo

(1) each component must be numbered. These parts must be in accordance with the system diagram and the piping diagram. These pieces or letters are not on the elements of the adjacent components.

(2) the orifice of the element, including the pilot port, the test port and the discharge port, must be clearly and permanently marked and consistent with the circuit diagram.

(3) on the electrical and hydraulic system diagram, the electrical control device.

(4) installed in the circuit board inside the cartridge valve and other control elements (damper, shuttle valve, Dan Xiangfa), plus a sign near the mouth of the inspection must be demolished, when dismantling the opening position in the following one or several components, you must provide identification on components nearby, and note on "install".

10, control force

In design, the force on the manual control mechanism shall not exceed the following values

Finger 10N

Wrist 40N

Single arm 150N

Double arm 250N