CN203336045U

CN203336045U - Unidirectional rolling bearing suspension plate

Info

Publication number: CN203336045U
Application number: CN2013202945270U
Authority: CN
Inventors: 高勇
Original assignee: JIANGSU DALICHENG ELECTRICAL Co Ltd
Current assignee: JIANGSU DALICHENG ELECTRICAL Co Ltd
Priority date: 2013-05-27
Filing date: 2013-05-27
Publication date: 2013-12-11
Anticipated expiration: 2023-05-27

Abstract

The utility model provides a unidirectional rolling bearing suspension plate including the suspension plate, a three-hole suspension plate, an outer side plate, a bolt, an A guide rail plate, heavy-duty needle bearings, a main shaft, a B guide rail plate, a cover plate, a suspension ring, and a scale. The unidirectional rolling bearing suspension plate is advantageous in that 1) the needle bearing structure is large in bearing force and less in friction resistance so that additional forces of hangers and supports to a pipe system are greatly reduced; 2) the scale visually reflects the horizontal thermal expansion conditions of the operation of the hangers, the supports and the whole pipe system and provides detailed data of the regular maintenance of the hangers and the supports; 3) two heavy-duty needle bearings and linear guide rails at each side have the function of guiding so that the rolling bearing suspension plate can flexibly, reliably, and accurately move along the horizontal displacement of the hangers and the supports; 4) the structure is simple and the on-site installation is convenient; and 5) the rolling bearing suspension plate of the hangers and the supports is provided with the scale which is widely applied to thermal pipelines and can fully, visually, and accurately reflect the horizontal thermal displacement conditions of the operation of the hangers, the supports and the pipe system.

Description

Single roll bearing boatswain chair

Technical field

What this novel practical related to is for the larger piping support and hanger root of horizontal thermal walking--single roll bearing boatswain chairs such as the important high-temperature pipes in thermal power plant, belongs to suspension and support root part technical field.

Background technique

Along with China's electric utility develop rapidly, with low energy, the efficient trend that requires the high parameter adapted, large capacity Construction of Unit to become current electric power construction market development.The suspension and support of larger thermal walking place produced because of thermal expansion for large capacity unit high temperature section pipeline, in installation process, the suspension and support pull bar is by deflection, cause suspension and support one end to produce additional force to pipeline, the other end also produces additional force to building structure, if do not taken measures, the piping additional force will be by elbow, and the pipe fittings such as threeway finally pass to equipment interface, affects the intensity of pipe fitting and the safety of equipment.Excessive for fear of additional force in the past, the related design rules require suspension and support pull bar angle excursion to be not more than three to four degree.In order to meet this requirement, larger to thermal walking.The suspension and support that the pull bar angle excursion is large, can reduce angle excursion by lengthening suspension and support pull bar length, also can carry out partially filling to reduce angle excursion to suspension and support.Lengthen the suspension and support pull bar and affected by building structure, and adopt dress partially to make cold conditions and hot operating mode produce additional force, all can not fundamentally effectively alleviate or deal with problems.

For the horizontal thermal walking of piping, prior art is indicated at the displacement larger part, special-purpose displacement indicator being set.Special-purpose displacement indicator only can indicate the thermal walking of piping part, can't reflect the operation heat expansion situation of whole piping comprehensively, can not meet the operation monitoring requirement of hanger system.

Summary of the invention

The utility model proposes a kind of sports type suspension and support root-single roll bearing boatswain chair is installed, its objective is that suspension and support rolling bearing boatswain chair adopts the needle bearing project organization, surface friction drag is little, and root takes suspension and support to and can move with the piping displacement direction, significantly reduces horizontal additional force; Thereby meet the requirement of the horizontal thermal walking of high temperature section piping suspension and support.Have simple for structure, the characteristics such as resistance to motion is little, is convenient to intuitively reflect the horizontal thermal walking situation of suspension and support, easy for installation.

Technical solution of the present utility model: a kind of single roll bearing boatswain chair, its structure is to comprise boatswain chair, three boatswain chairs, outer panel, bolt, A guide-rail plate, heavily loaded needle bearing, main shaft, B guide-rail plate, cover plate, suspension ring, scale; Wherein by two boatswain chairs and two outer panels, be welded into a square frame, A guide-rail plate and B guide-rail plate are welded on respectively the inboard of two outer panels; 4 heavily loaded needle bearings, 2 main shafts and three boatswain chairs constitute a single unit system, and this single unit system is placed in the orbit consisted of A guide-rail plate and B guide-rail plate; Cover plate is fixed on the outer panel top; Suspension ring are fixed on the outer panel of a side; Scale is arranged on the outside of this outer panel.

Advantage of the present utility model:

1) adopt heavily loaded needle bearing project organization, bearing capacity is large, and surface friction drag is little, has significantly reduced the additional force of suspension and support to piping;

2) scale reflects the horizontal heat expansion situation of suspension and support and the operation of whole piping intuitively, and the detailed data of suspension and support being carried out to periodic maintenance can be provided;

3) two heavily loaded needle bearings of every side and linear rail have leading role, flexibly, reliably, accurately make three boatswain chairs move with the Horizontal displacement of suspension and support for a long time;

4) simple in structure, be convenient to on-the-spot the installation;

5) suspension and support rolling bearing boatswain chair is provided with scale, on heat distribution pipeline, applies, can comprehensive, intuitive and accurate reflection suspension and support and the horizontal thermal walking situation of piping operation.The operation heat expansion situation met whole piping monitored, and can easily provide suspension and support is carried out to the required detailed comprehensive data of periodic maintenance.

The accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram of single roll bearing boatswain chair.

Fig. 2 is the side-looking structural representation of single roll bearing boatswain chair.

Fig. 3 is the sectional structure schematic diagram of single roll bearing boatswain chair.

In figure 1 is that boatswain chair, 2 is three boatswain chairs, the 3rd, outer panel, the 4th, bolt, the 5th, A guide-rail plate, the 6th, heavily loaded needle bearing, the 7th, main shaft, the 8th, B guide-rail plate, the 9th, cover plate, the 10th, suspension ring, the 11st, scale.

Embodiment

The contrast accompanying drawing, single roll bearing boatswain chair, its structure comprises boatswain chair 1, three boatswain chairs 2, outer panel 3, bolt 4, A guide-rail plate 5, heavily loaded needle bearing 6, main shaft 7, B guide-rail plate 8, cover plate 9, suspension ring 10, scale 11; Be welded into a square frame by two boatswain chairs 1 and two outer panels 3, A guide-rail plate 5 and B guide-rail plate 8 are welded on respectively the inboard of two outer panels 3; 6,2 main shafts 7 of 4 heavily loaded needle bearings and three boatswain chairs 2 are combined into to an integral body, finally this integral body is placed in the orbit that has A guide-rail plate 5 and B guide-rail plate 8 to form pre-set, guarantees that three boatswain chairs 2 roll and circulate along track in orbit; Cover plate 9 is fixed on the outer panel top and plays the proofing dust and protecting effect; Suspension ring 10 are fixed on a side outer panel, lifting is installed and uses; Scale 11 is arranged on the outside of a side outer panel, indicates the displacement of three boatswain chairs 2.

Working procedure:

In the place of needs monitoring piping Horizontal displacement, according to the hot displacement situation of pipeline, direction of horizontal displacement or both direction, specifically select single roll bearing boatswain chair or Double roll bearing boatswain chair.

One section corresponding cold position of stroke when the rolling bearing boatswain chair is installed, the corresponding hot direction of displacement of the other end.

Similar 2 the definite straight lines of its principle of single roll bearing boatswain chair, respectively settle two heavily loaded needle bearings in boatswain chair two side rails, boatswain chair is rolled back and forth along the track designed, and Friction drag coefficient of motion reduces greatly than " 1983 editions steam-water pipe suspension and supports " single roll boatswain chair.

Claims

1. a single roll bearing boatswain chair, is characterized in that comprising boatswain chair, three boatswain chairs, outer panel, bolt, A guide-rail plate, heavily loaded needle bearing, main shaft, B guide-rail plate, cover plate, suspension ring, scale; Wherein by two boatswain chairs and two outer panels, be welded into a square frame, A guide-rail plate and B guide-rail plate are welded on respectively the inboard of two outer panels; 4 heavily loaded needle bearings, 2 main shafts and three boatswain chairs constitute a single unit system, and this single unit system is placed in the orbit consisted of A guide-rail plate and B guide-rail plate; Cover plate is fixed on the outer panel top; Suspension ring are fixed on the outer panel of a side; Scale is arranged on the outside of this outer panel.