Sealing element guard ring of metal track
A technology of seals and protection rings, applied in the field of seal protection rings of metal crawler tracks, can solve the problems of waste of material processing man-hours, reduced production efficiency, unreasonable mechanical processing technology, etc., to improve quality and service life, increase Normal service life, the effect of solving adverse effects
Inactive Publication Date: 2009-10-28
SHANGHAI DONGHE TRANSMISSION SHAFT
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Problems solved by technology
The service life of the track is low, and the accuracy of the working part is poor, which will not only affect the quality, but also cause a huge waste of costs such as materials and processing hours, which will greatly increase costs and reduce production efficiency, seriously affecting the competitiveness of products
[0003] Studies have shown that the service life of metal crawlers is related to many factors such as improper heat treatment, improper material selection, unreasonable structure, unreasonable machining process, poor lubrication, poor design level, etc.
Method used
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Embodiment Construction
[0014] exist figure 1 , figure 2 and image 3 The seal protection ring of the metal track of the present invention is shown in . A circular metal crawler seal protection ring is arranged inside the metal crawler, and the metal crawler is composed of a pin shaft 1, a casing 2, a chain link 3, a seal 4 and a seal protection ring 6. A sleeve 2 is sheathed in the middle of the pin 1, the inner diameter of the sleeve 2 is greater than the outer diameter of the pin 1, and the two are in clearance fit. Both ends of the pin shaft 1 and the casing 2 are respectively covered with inner and outer chain links 3 , wherein the pin shaft 1 runs through the four inner and outer chain links 3 , namely L and R, and the sleeve pipe 2 runs through the inner two chain links 3 . The a-end 3a of the outer chain link 3 is sleeved on the upper and lower ends of the pin shaft 1 , and the b-end 3b of the inner chain link 3 is sleeved on the upper and lower ends of the casing 2 . The a-end 3a of the...
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The invention discloses a sealing element guard ring of a metal track. The sealing element guard ring is a circular metal ring and sleeved outside the sealing element; a sleeve is sleeved in the middle of a pin shaft, the internal diameter of the sleeve is larger than the external diameter of the pin shaft, and the sleeve and the pin shaft are in clearance fit; an inner link and an outer link are respectively sleeved on both ends of the pin shaft and the sleeve, the a end of the outer link is sleeved on the upper end and the lower end of the pin shaft, the b end of the inner link is sleeved on both ends of the sleeve, the a end of the outer link is connected with the b end of the inner link, and a gap is arranged between the outer link and the inner link; the sealing element and the sealing element guard ring are arranged in a cavity formed by the a end of the outer link, the b end of the inner link and the pin shaft, and the circular sealing element guard ring is sleeved outside the sealing element; and the width of the sealing element guard ring is larger than that of the sealing element, and one end of the sealing element guard ring is inserted in a counterbore formed by the b end of the inner link and the sleeve. The invention adds a sealing element guard ring outside the sealing element of the metal track to further solve the wear and tear problem of the sealing element during use, enables the oil seal to be protected, and can increase the normal service life of the oil seal.
Description
[technical field] [0001] The invention relates to the manufacturing field of metal crawlers, in particular to a seal protection ring for metal crawlers. [Background technique] [0002] With the continuous improvement of industrial automation, the application of excavators is becoming more and more extensive. But at present, in many enterprises in our country, the service life of metal crawlers used in excavators is still relatively low. The low service life of the track and the poor precision retention of the working part will not only affect the quality, but also cause a huge waste of costs such as materials and processing hours, which will greatly increase costs and reduce production efficiency, seriously affecting the competitiveness of products. [0003] Studies have shown that the service life of metal crawlers is related to many factors such as improper heat treatment, improper material selection, unreasonable structure, unreasonable machining process, poor lubricatio...
Claims
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Inventor 简显助
Owner SHANGHAI DONGHE TRANSMISSION SHAFT