Forklift Tilt Cylinder Related Knowledge

Introduction

Forklift tilting cylinders sometimes encounter certain difficulties in the daily use process due to the lack of user knowledge. These problems are often encountered in crane jib cylinder, clamping cylinder, bi-directional cylinder, engineering cylinder, spiral cylinder, and other products.

Forklift tilting cylinder: the working medium of the cylinder: because the work at room temperature, so the choice of ordinary is oil type hydraulic oil can be; cylinder sealing device: the choice of Yx-type seals, polyurethane (PU) and polytetrafluoroethylene (PTFE) materials used jointly to achieve a good sealing effect; cylinder buffer mechanism: the buffer structure of the hydraulic cylinder is to prevent the piston at the end of the stroke and the cylinder head impact.

The cylinder support of the tilt cylinder is fixed on the inner wall plate of the forklift tank, and the tank support is a single piece; the rear earring of the corresponding tilting cylinder is two pieces; the rear earring of the two pieces of the tilting cylinder forms a cleat, and the single piece of the tank support is sandwiched between them; the center of the cleat is a through pin hole, and the tilting cylinder is fixed on the forklift frame by the fixed pin inserted in the pin hole. The utility model makes the forklift frame more compact in structure setting, so that the forklift can achieve a better degree in power consumption and fuel saving.

Cylinder Description

If the cylinder seal occurs abnormal wear, check whether the speed control valve is not properly adjusted, resulting in excessive back pressure and improper installation of seals or hydraulic oil contamination. The next is whether there is a foreign body into the assembly and seal material quality is not good. The consequence is slow action, powerless, and in serious cases will cause damage to the piston and cylinder barrel, "pull cylinder" phenomenon. The treatment method is to adjust the speed control valve, according to the installation instructions should do the necessary operation and improvement.

Hydraulic Technology Inquiries

Cylinder barrel inspection: the inner surface of the hydraulic cylinder barrel and piston seal is the main factor causing the internal leakage of the hydraulic cylinder, if the cylinder barrel produces longitudinal pull marks, even if the replacement of the new piston seal, but also can not effectively troubleshoot, the cylinder barrel inner surface mainly check whether the size tolerance and shape tolerance to meet the technical requirements, there is no longitudinal pull marks, and measure the depth of the longitudinal pull marks, in order to take the appropriate solution.

Excavation Motor Arm Cylinder with Sound Reasons

Hydraulic excavator hydraulic cylinders include the moving arm cylinder, bucket rod cylinder and bucket cylinder, the three major parts of the four cylinders. The sound of the moving arm cylinder may be the wear of the hydraulic cylinder body bushings, piston rod bushings and shaft pins. The main reason: poor lubrication, followed by improper fit clearance in the assembly process.

Countermeasures

1. Strictly implement the requirement of lubricating each axle pin at least once every 8 hours under the initial 100 hours of excavator use and poor working conditions, and lubricating each axle pin at least once every 50 hours under other working conditions.
2. If the lubricating oil channel is found to be blocked, it must be stopped and rectified.
3. It is required to strictly comply with the assembly and testing standards and operation standards when assembling and replacing each shaft pin and bushing.