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Automatic pressure-holding rotary sealing device for walking wheel train of paddy field machinery chassis

A technology of rotating sealing and traveling wheels, applied in mechanical equipment, wheels, wheel-axle combinations, etc., can solve problems such as poor sealing effect, bearing wear, bearing failure, etc., to prevent leakage, improve service life, improve work reliability and use effect of life

Active Publication Date: 2015-11-18
HUNAN LONGZHOU FARM EQUIP HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The running gear train of the paddy field machinery chassis, because it works in muddy water for a long time, often causes bearing wear and corrosion due to water, mud and sand entering the bearing, causing early failure of the bearing and causing damage to the running wheel
The current mud and water seal structures are: contact oil seal, simple in structure but poor in sealing effect, and damage to oil seal, shaft and bearing due to wear and tear caused by mud and sand; non-contact labyrinth + oil seal seal, more complex in structure and mud and sand will still invade the oil seal and cause damage. Early failure; combined oil seal (that is, the oil seal itself has a rotary motion pair) has high cost and mud and sand will still invade the bearing after wear; other seals are not used in paddy field machinery due to structural and cost reasons

Method used

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  • Automatic pressure-holding rotary sealing device for walking wheel train of paddy field machinery chassis
  • Automatic pressure-holding rotary sealing device for walking wheel train of paddy field machinery chassis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 , figure 2 As shown, the present invention is mainly composed of a shaft 1, a shaft sleeve 2, an inner bearing cover 3, an elastic washer 4, a sealing washer 5, an oil seal 6, a semi-sealed bearing 7, a traveling wheel 8, a bearing end cover 10, and an inner bearing cover gasket 11. , the inner bearing cover is provided with a lubricating oil filling hole 9. The elastic washer 4 and sealing washer 5 described in the present invention are arranged on the shaft between the inner bearing cap 3 and the shaft 1 .

[0020] In the present invention, an inner bearing cover, an elastic washer, a sealing washer, an oil seal and a shaft are combined together to form a 1G series crawler-type rotary tiller automatic pressure-maintaining rotary sealing device. During assembly, adjust the pre-compression force of the elastic washer to the sealing washer by adjusting the thickness of the inner bearing cap gasket between the inner bearing cap and the running wheel an...

Embodiment 2

[0022] Such as figure 1 , figure 2 As shown, the present invention is mainly composed of a shaft 1, a shaft sleeve 2, an inner bearing cover 3, an elastic washer 4, a sealing washer 5, an oil seal 6, a semi-sealed bearing 7, a traveling wheel 8, a bearing end cover 10, and an inner bearing cover gasket 11. , the inner bearing cover is provided with a lubricating oil filling hole 9. The elastic washer 4 and sealing washer 5 described in the present invention are arranged on the shaft between the inner bearing cap 3 and the shaft 1 .

[0023] The invention combines an inner bearing cover, an elastic washer, a sealing washer, an oil seal and a shaft to form an automatic pressure-maintaining rotary sealing device for a 4LZ series crawler harvester. During assembly, adjust the pre-compression force of the elastic washer to the sealing washer by adjusting the thickness of the inner bearing cap gasket between the inner bearing cap and the running wheel and the elasticity of the el...

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PUM

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Abstract

The invention relates to an automatic pressure maintaining rotary seal device of a paddy field machine chassis walking wheel train. The automatic pressure maintaining rotary seal device comprises a shaft, a shaft sleeve, an inner bearing cap, an inner bearing cap gasket, an elastic gasket, a sealing gasket, an oil seal, a bearing, a bearing end cap and a walking wheel. The shaft is installed in the shaft sleeve of a machine frame of a paddy field machine. The walking wheel is installed on the shaft through the bearing. The inner bearing cap, the elastic gasket, the sealing gasket and the shaft are combined to form an automatic pressure maintaining rotary seal. The automatic pressure maintaining rotary seal device has the obvious advantages that under the protection of the automatic pressure maintaining rotary seal formed by the inner bearing cap, the elastic gasket, the sealing gasket and the shaft, it can be ensured that muddy water can not penetrate into the bearing of the walking wheel of the paddy field machine even when the paddy field machine frequently works in the muddy water, the service life of the bearing is greatly prolonged, and reliability of the wheel train of the paddy field machine is greatly improved.

Description

technical field [0001] The invention relates to a rotary sealing device for a traveling wheel train of a paddy field machinery chassis, in particular to an automatic pressure-maintaining rotary sealing device for a traveling wheel train of a paddy field machinery chassis with a simple structure but good sealing effect. Background technique [0002] The running gear train of the paddy field machinery chassis, because it works in muddy water for a long time, often causes bearing wear and corrosion due to water, mud and sand entering the bearing, causing early failure of the bearing and causing damage to the running wheel. The current mud and water seal structures are: contact oil seal, simple in structure but poor in sealing effect, and damage to oil seal, shaft and bearing due to wear and tear caused by mud and sand; non-contact labyrinth + oil seal seal, more complex in structure and mud and sand will still invade the oil seal and cause damage. Early failure; combined oil se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B37/00F16C33/76
Inventor 王术平夏宁清彭向林
Owner HUNAN LONGZHOU FARM EQUIP HLDG CO LTD