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Thrust bearing and insertion type anti-drop thrust pad fixing method for thrust bearing
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A thrust bearing and thrust pad technology, applied in the field of thrust bearings, can solve problems such as screw falling off, and achieve the effect of avoiding screw and related parts loosening and parts loosening, simple steps and simple structure
Active Publication Date: 2018-12-28
NUCLEAR POWER INSTITUTE OF CHINA
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Description
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Problems solved by technology
[0005] The purpose of the present invention is to provide a thrust bearing and its plug-in anti-falling-off thrust pad fixing method, which solves the problem that the baffle plate used to fix the thrust pad of the existing water-lubricated thrust bearing is connected with the thrust plate through screws, which may occur during the operation of the pump unit. Vibration can cause the screw to fall off the problem
Method used
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Embodiment 1
[0044] Such as Figure 1-Figure 14As shown, the thrust bearing of the present invention includes a thrust bearing body, and the thrust bearing body includes a thrust plate 1, a bearing seat 6, and a thrust shoe 2, a thrust plate 3, and a pressure plate 4 assembled between the thrust plate 1 and the bearing seat 6 and baffles 5, each thrust plate 3 is located between two baffles 5, a sliding groove 9 is arranged on the side of the thrust disk 3 away from the bearing seat, and the sliding groove 9 is arranged along the thrust bearing body and the end of the chute 9 close to the axis of the thrust bearing body communicates with the outside world, and the other end is a closed end, and the side of the chute 9 far away from the center line of the thrust plate 3 is on the groove wall and close to the axis of the thrust bearing body One side of the chute 9 is provided with a relief notch 10, and the other side of the chute 9 is provided with a clamping hole 11 on the side of the chut...
Embodiment 2
[0049] In the thrust bearing of the present invention, an insert 14 is provided at the end of the baffle plate 5 away from the axis of the bearing body, and a through hole 15 is provided at the closed end of the chute 9, and the axis of the through hole 15 is parallel to the extension of the chute 9 direction, and when the end of the baffle plate 5 away from the axis of the bearing body contacts the closed end of the sliding groove 9, the plug 14 is inserted into the through hole 15.
[0050] The arrangement of the insert block 14 and the through hole 15 further positions the baffle plate 5 in the circumferential direction and the axial direction, and improves the stability of the baffle plate 5 .
[0051] Preferably, the cross-section of the through hole 15 is rectangular, and its shape and size are consistent with those of the plug 14 .
Embodiment 3
[0053] The thrust bearing of the present invention is provided with an auxiliary plate 16 on the side of the baffle plate 5 away from the centerline of the thrust plate 3 and away from the groove bottom of the chute 9, and on the side of the chute 9 away from the centerline of the thrust plate 3 On the side of the groove wall and away from the bottom of the groove, a support gap 17 matching the auxiliary plate 16 is provided. When the baffle plate 5 is matched with the corresponding chute 9, the auxiliary plate 16 is close to the bottom of the chute 9. One end is in contact with the notch 17.
[0054] Preferably, the clamping hole 11 is a rectangular hole, and the shape and size of the stopper 12 are consistent with those of the clamping hole 11 .
[0055] The sub-board 16 is integrally formed with the baffle 5 .
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Abstract
The invention discloses a thrust bearing, and an insertion type anti-drop thrust pad fixing method for the thrust bearing. The thrust bearing comprises a thrust bearing body, wherein the thrust bearing body comprises a bearing pedestal, thrust collars and baffles; chutes are formed on the side of each thrust collar far from the bearing pedestal; the end of each chute close to the axis of the thrust bearing body communicates with the outside, and the other end of each chute is closed; a step-down notch is formed in the chute wall on the side of each chute far from the central line of the corresponding thrust collar and on the side of the chute close to the axis of the thrust bearing body, and a clamp hole is formed in the chute wall on the other side of each chute and on the side of the chute close to the axis of the thrust bearing body; a stopper is arranged on one plate surface of each baffle; each baffle is inserted into the corresponding chute; when the end of each baffle far from the axis of the bearing body is in contact with the closed end of the corresponding chute, the corresponding stopper is located in the corresponding clamp hole; and a crack is formed at the end, closeto the axis of the bearing body, of each baffle. The thrust bearing and the method provided by the invention have the advantages that releasing of bolts and relevant parts caused by vibration transferduring operation of a pump unit and faults caused by the releasing of the parts are avoided.
Description
technical field [0001] The invention relates to a thrust bearing, in particular to a thrust bearing and a fixing method for a plug-in anti-dropping thrust pad. Background technique [0002] Bearing is an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Water-lubricated thrust bearing is a kind of bearing, which is mainly used in the main pump unit and is one of the key components for the stable and reliable operation of the shielded motor of the main pump unit. The reactor coolant pump (hereinafter referred to as the main pump) is equipped with a water-lubricated thrust bearing to withstand the axial thrust of the main pump rotor under various working conditions, and its reliability has an important impact on the overall performance and reliability of the main pump unit. [0003] The existing water lubricated thrust bearing...
Claims
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Application Information
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