wangf@hfdynometa.com

News

Word of mouth from users

Word of mouth from users

Word of mouth from users

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2023

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08

OEM Publicity

16

2023

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08

The main structure of the roller

The main structure of the roller

Wheel body, roller shaft, shaft sleeve, sealing ring, end cover and other related components. Track rollers can be divided into unilateral track rollers and bilateral track rollers; track rollers for excavators and track rollers for bulldozers, track rollers for excavators are generally black paint, and track rollers for bulldozers are generally yellow paint

21

2022

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07

What are the three parts of the rollers?

What are the three parts of the rollers?

Roller is an important load-bearing component of crawler-type construction machinery (commonly referred to as "lower roller"). The fulcrum is fixed on the trolley frame through the left and right support seats, the wheel body has a press-fitted bushing to rotate with the support shaft, and a sealing assembly is installed between the rotating wheel body and the fixed left and right support seats to keep the support shaft. Sealing with lubricating oil of shaft sleeve and other parts. The sealing assembly consists of a pair of double-cone metal sealing rings and two nitrile rubber fixed compression rings. The rubber ring is installed in the sealing seat of the wheel body and the support seat respectively. Since the metal sealing ring is squeezed by the rubber ring to ensure that its annular land is tightly meshed during rotation, the seal is a floating seal type.

21

2022

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07

What is a guide wheel and what is a roller?

What is a guide wheel and what is a roller?

The guide wheel is located in the front of the frame. It consists of a guide wheel and a tensioning cylinder spring installed inside the frame. The roller is used to support the weight of the tractor and roll on the track (rail link) or track shoe. , it is also used to limit the track and prevent lateral slippage.

21

2022

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07

The function of the roller

The function of the roller

The function of the rollers is to transmit the weight of the locomotive group to the ground and roll on the track. In order to prevent derailment, the rollers should also be able to prevent the track from moving relative to it laterally. The rollers often work in muddy water, sand and sand, and bear strong impact. The working conditions are extremely bad, and the rim is easy to wear. The requirements for the roller are: wear-resistant rim, reliable bearing seal, low rolling resistance, etc.

21

2022

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07

Transmission advantages of pulleys

Transmission advantages of pulleys

The advantages of the pulley drive are: the pulley drive can alleviate the impact of the load; the pulley drive runs smoothly, with low noise and low vibration; the pulley drive has a simple structure and is easy to adjust; the pulley drive is not as strict in the manufacture and installation of the pulley as the meshing drive; the pulley drive It has the function of overload protection; the adjustment range of the center distance between the two axles driven by the pulley is large. The disadvantages of the belt drive are: the pulley drive has elastic sliding and slipping, the transmission efficiency is low and the accurate transmission ratio cannot be maintained; when the pulley drive transmits the same large circumferential force, the contour size and the pressure on the shaft are larger than the meshing drive; the pulley drive belt shorter lifespan. The diameter and other dimensions of the pulleys of all kinds of mechanical equipment are matched by their own pulleys and pulleys according to the reduction ratio, and they are designed according to the working speed and the speed of the motor.

21

2022

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07

The reason for the heating of the pulley

The reason for the heating of the pulley

1. The influence of the heating of the pulley: After the pulley works for a long time, part of the mechanical energy is converted into heat energy, which causes the pulley to heat up. After the pulley is heated, the working efficiency of the machine will be reduced, the aging of the pulley will be accelerated, and the pulley will be easily broken, thereby causing safety problems. Second, the three major reasons for the heating of the pulley: 1. Material of pulley: The selection of pulley should be based on the matching material of mechanical operation speed. Many customers have vague requirements for material and workmanship when choosing a pulley, which causes the pulley to fail to keep up with the speed of the machine, so it is hot to the touch and the wear is more serious. required pulley. 2. Selection of pulley type: The selection of pulley type needs to be confirmed according to the speed and power of the equipment. Incorrect selection of the pulley model will result in insufficient torque and can not carry the load of the machine, because many customers have a vague concept of the selection of pulleys. question.

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2022

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