Omniseal biserial cylinder roller bearing suitable for continuous pipe drilling machine
A cylindrical roller bearing, fully sealed technology, applied in the field of bearings, can solve the problems of large axial movement, poor lubrication, end face wear, etc., achieve good radial load requirements, meet radial load requirements, and solve problems of poor lubrication. Effect
Inactive Publication Date: 2012-05-09
WAFANGDIAN BEARING GRP CO LTD +1
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Problems solved by technology
[0003] In view of the above technical problems, the purpose of the present invention is to provide a fully sealed double-row cylindrical roller bearing suitable for coiled tubing drilling rigs, which adopts a new type of sealing structure, which not only satisfies the radial load requirements well, but also can withstand certain axial loads. load, which solves the problems of poor lubrication, large axial movement, end face wear, and low service life
Method used
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[0013] The fully sealed double-row cylindrical roller bearing suitable for coiled tubing drilling rigs is composed of outer ring 1, inner ring 2, roller 3, flat retaining ring 4, and sealing ring 5; between outer ring 1 and inner ring 2 is The roller 3 has a sealing groove on the outer ring 1, and a sealing ring 5 is installed on the sealing groove, and a flat retaining ring 4 is provided on one side of the inner ring 2.
[0014] The outer ring 1 is a double raceway outer ring.
[0015] The inner ring 2 is a single-rib inner ring.
[0016] The rollers 3 are double row cylindrical rollers.
[0017] When assembling, put the rollers into the two raceways of the outer ring 1 to form self-locking, put the two sealing rings 5 into the sealing grooves of the outer ring 1, assemble them into a cylindrical roller outer ring 1 assembly, put the inner ring 2 Install the cylindrical roller assembly with the flat retaining ring 4 respectively.
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The invention relates to the field of bearings and particularly relates to an omniseal biserial cylinder roller bearing suitable for a continuous pipe drilling machine. In the bearing provided by the invention, a novel seal structure is adopted, thus radial loading requirement can be well met, and a certain axial loading can be endured, thereby solving the problems of poor lubrication, large axial float, end face abrasion, short service life and the like. When the bearing is assembled, rollers are placed in two roller paths of an outer ring and then self-locking is formed; and two seal rings are placed in the seal groove of the outer ring to be assembled so as to form a cylinder roller outer ring assembly, and an inner ring and a loose rib are respectively placed in the cylinder roller outer ring assembly.
Description
technical field [0001] The invention relates to the field of bearings, in particular to a fully sealed double-row cylindrical roller bearing suitable for coiled tubing drilling rigs. Background technique [0002] The operation of the injection head of coiled tubing drilling rig is a field operation. The environment of the bearing is sandy, dusty and rainy. The ambient temperature of the injection head is -40℃~+45℃, and the outer ring of the bearing is exposed. The original bearing is an open double-row cylindrical roller bearing, and the inner ring has no rib. During the installation and use of the bearing, the grease inside the bearing is lost, the lubrication is poor, the axial movement of the bearing is large, the end face is worn, and the service life is very low. . Contents of the invention [0003] In view of the above technical problems, the purpose of the present invention is to provide a fully sealed double-row cylindrical roller bearing suitable for coiled tubin...
Claims
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IPC IPC(8): F16C19/38F16C33/78
Inventor 李华伟崔传荣段同江宇兴隆申明月徐昊岩
Owner WAFANGDIAN BEARING GRP CO LTD