A sealing device for a slewing bearing
A technology of slewing bearings and sealing devices, which is applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as seal failure, mismatch, oiling and falling off, and achieve good sealing performance, long service life, and wear resistance. smooth effect
Active Publication Date: 2015-11-04
吴银辉
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- Abstract
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- Application Information
AI Technical Summary
Problems solved by technology
The slewing bearings are always working in harsh environments. The existing slewing bearings use rubber sealing rings as sealing devices. The rubber sealing rings are prone to aging, oily and falling off, which will cause damage to the rubber sealing rings and cause seal failure. The sealing rings must be replaced and disassembled. very difficult
The slewing ring is a durable part, while the rubber sealing ring is a vulnerable part, and the cooperation between the two is very mismatched
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with drawings and embodiments.
[0013] refer to figure 1 , figure 2 and image 3 , this embodiment includes a piston ring 5 with a circular cross-section, and at least two piston ring grooves 6 are arranged on the upper and lower sides of the rolling element groove 4 of the inner ring 2 of the slewing bearing, and the piston ring 5 with a circular cross-section is installed on the piston In the ring groove 6. Oil penetration holes 3 are evenly distributed on the circumference of the inner ring 2, and the oil penetration holes 3 are located between the lower side of the rolling element groove 4 and the upper side of the piston ring groove 6, and the oil penetration holes 3 are located below the inner teeth 1 of the slewing bearing.
[0014] The sealing device of the slewing bearing of the present invention has a good sealing effect, and the slewing bearing can use gear oil. Under the action of pre...
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The invention provides a seal device for a slewing bearing. The seal device comprises piston rings with annular sections, wherein at least two piston ring grooves are formed in each of the upper and lower sides of a rolling element groove of an inner ring of the slewing bearing, and the piston rings with annular sections are arranged in the piston ring grooves; oil penetration holes are uniformly distributed in the circumference of the inner ring, are formed between the lower side of the rolling element groove and the upper sides of the piston ring grooves, and are positioned below inner teeth of the slewing bearing. According to the invention, the slewing bearing is a durable part, and the piston rings with annular sections are durable parts, so that the slewing bearing and the piston rings are matched with each other excellently. The seal device cannot be damaged easily and is long in service life and excellent in seal performance, gear oil is unlikely to leak and the seal device does not need maintenance in several years; polishing scratches between the piston rings and an outer ring can be smooth due to the round sections of the piston rings, and thus the detachment is convenient. The seal device is applicable to sealing of slewing bearings with various models.
Description
technical field [0001] The invention relates to a sealing device of a slewing bearing, in particular to the application of a piston ring replacing a rubber sealing ring in the sealing device of a slewing bearing. Background technique [0002] At present, the slewing ring includes an inner ring, an outer ring and rolling elements, and the rolling elements are arranged between the inner ring and the outer ring. The slewing bearings are always working in harsh environments. The existing slewing bearings use rubber sealing rings as sealing devices. The rubber sealing rings are prone to aging, oily and falling off, which will cause damage to the rubber sealing rings and cause seal failure. The sealing rings must be replaced and disassembled. very difficult. The slewing bearing is a durable part, while the rubber sealing ring is a vulnerable part, and the cooperation between the two is very mismatched. Due to the poor sealing performance of the rubber sealing ring, only lubricat...
Claims
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IPC IPC(8): F16C33/78
Inventor 吴银辉
Owner 吴银辉