CN203431038U

CN203431038U - Built-in slewing bearing structure of engineering machinery

Info

Publication number: CN203431038U
Application number: CN201320462361.9U
Authority: CN
Inventors: 闫生辉; 陈玉华; 席玉珩; 沈贵生; 汪宝和; 沙新祥
Original assignee: Rugao Nonstandard Bearing Co Ltd
Current assignee: Rugao Nonstandard Bearing Co Ltd
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2014-02-12
Anticipated expiration: 2023-07-31

Abstract

The utility model relates to a built-in slewing bearing structure of engineering machinery. The built-in slewing bearing structure comprises a seat ring, an upper shaft ring, a lower shaft ring and cylindrical rolling bodies, wherein the seat ring is provided with two upper roller ways, two lower roller ways and a side roller way; the cylindrical rolling bodies are placed in the upper roller ways, the lower roller ways and the side roller way. The built-in slewing bearing structure of the engineering machinery is characterized in that an upper cavity and a lower cavity are respectively formed in the upper and lower surfaces of the seat ring and are communicated with each other through a through hole; emitters of a photoelectric sensor are embedded into the upper cavity; a wiring port of the photoelectric sensor is formed in the lower cavity; a plurality of reflecting plates which correspond to the emitters in position are distributed on the upper shaft ring; an annular dustproof bump is formed on the seat ring; a dustproof sealing ring which is matched with the annular dustproof bump is embedded to the upper shaft ring. By virtue of a signal, the position of the engineering machinery can be controlled, or the engineering machinery can be softly limited and is convenient to use. According to a dustproof structure, the dustproof effect is improved, and the photoelectric sensor is limited into a space which is not disturbed by light rays so as to be capable of normally working.

Description

A kind of built-in engineering machinery pivoting support structure

Technical field

The utility model relates to a kind of bearing, particularly a kind of built-in engineering machinery pivoting support structure.

Background technique

Engineering machinery is the important component part of Chinese equipment manufacturing industry.Put it briefly, the necessary mechanized equipment of comprehensive mechanized construction engineering that all restoration in earth-rock construction engineerings, pavement construction and maintenance, flowing type lifting handling operation and various construction engineering are required, is called engineering machinery.It is mainly used in national defense construction engineering, communications and transportation construction, the fields such as the raw and semifinished materials industries construction such as energy industry construction and production, mine and production, agriculture, forestry, water conservancy construction, industry and civil building, urban construction, environmental protection.

Pivoting support is the nearly 40 years novel mechanical component that worldwide rise gradually, in engineering machinery, be widely used, it has the formations such as Internal and external cycle, rolling element, and along with developing rapidly of engineering machinery, its various performances, functional requirement to bearing is also more and more higher.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of built-in engineering machinery pivoting support structure that can detect the seat ring of pivoting support, blowout patche relative position.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of built-in engineering machinery pivoting support structure, comprise seat ring, upper blowout patche, lower blowout patche and cylinder rolling element, on seat ring, be evenly drilled with the seat ring mounting hole that distributes ringwise and connect the upper and lower end face of seat ring; Upper and lower blowout patche is the ladder tubular structure with large and small end, forms raceway in twice between upper blowout patche and seat ring, between lower blowout patche and seat ring, forms raceway under twice, forms one and sidewinder between seat ring side and the outer side surface of upper and lower blowout patche; Described upper and lower, place cylinder rolling element in sidewindering; Its innovative point is: the upper and lower surface of described seat ring has a upper plenum and cavity once, between upper and lower cavity, by through hole, be communicated with, the transmitter of the embedded light point sensor of upper plenum, photoelectric sensor Wiring port is installed in lower cavity, and this photoelectric sensor Wiring port is connected with photoelectric sensor transmitter by the datawire through through hole; The large end lower end surface of described upper blowout patche is evenly distributed with some tapped holes ringwise, and tapped hole internal thread connects reflecting plate, and this reflecting plate is the hexagon lag bolt that an end has reflective surface; The centre distance of described tapped hole and upper blowout patche axis equals the centre distance of upper plenum and seat ring axis; The upper-end surface that described seat ring is positioned at upper plenum outside has the dustproof projection of a ring shape, and a dust-proof seal ring is inlayed in the large end outer ring of described upper blowout patche, and the outer end of this dust-proof seal ring props up the upper-end surface of seat ring and is positioned at the dustproof protruding radial outside of annular.

The utility model has the advantage of: photoelectric sensor transmitter is installed on seat ring, and reflecting plate is set on upper blowout patche, utilizing light source that transmitter sends to be launched plate reflects and is received by the light receiving device in built-in transmitter, once reflecting plate leaves directly over transmitter, light receiving device can not receive the light time, photoelectric sensor is a switch controlling signal of action output just, upper blowout patche constantly drives emitting board to move and then makes the continuous output pulse signal of photoelectric sensor, and then can utilize this signal to carry out the control of engineering machinery position, or soft spacing as engineering machinery, use convenient.

The dustproof projection of annular is set on seat ring, and coordinates with the dust-proof seal ring on upper blowout patche, when improving dust-proof effect, photoelectric sensor is limited in a space that is not subject to light interference, guarantee that photoelectric sensor can work.

Accompanying drawing explanation

Fig. 1 is the built-in engineering machinery pivoting support of the utility model structural representation.

Fig. 2 is the built-in engineering machinery pivoting support of the utility model structure partial enlarged view.

Fig. 3 is reflecting plate plan view in the utility model.

Fig. 4 is emitting board worm's eye view in the utility model.

Embodiment

As shown in Figure 1, 2, comprise seat ring 1, upper blowout patche 2, lower blowout patche 3 and cylinder rolling element.

On seat ring 1, be evenly drilled with the seat ring mounting hole 4 that distributes ringwise and connect seat ring 1 upper and lower end face.

Upper blowout patche 2, lower blowout patche 3 are the ladder tubular structure with large and small end, and both are bolted the I shape cross section that forms a center drilling.Between upper blowout patche 2 and seat ring 1, form raceway in twice, between lower blowout patche 3 and seat ring 1, form raceway under twice, between the outer side surface of seat ring 1 side and upper blowout patche 2, lower blowout patche 3, form one and sidewinder; Upper and lower, place cylinder rolling element in sidewindering.

The upper and lower surface of seat ring 1 has a upper plenum 5 and cavity 6 once, between upper plenum 5, lower cavity 6, by through hole 7, be communicated with, the transmitter 8 of the embedded light point sensor of upper plenum 5, the interior installation photoelectric sensor of lower cavity 6 Wiring port 9, this photoelectric sensor Wiring port 9 is connected with photoelectric sensor transmitter 8 by the datawire through through hole 7.

The large end lower end surface of upper blowout patche 2 is evenly distributed with some tapped holes ringwise, and tapped hole internal thread connects reflecting plate 10, and as shown in Figure 3,4, this reflecting plate 10 is the hexagon lag bolt that an end has reflective surface.The centre distance of tapped hole and upper blowout patche 2 axis equals the centre distance of upper plenum 5 and seat ring 1 axis; The upper-end surface that seat ring 1 is positioned at upper plenum 5 outsides has the dustproof projection 11 of a ring shape, and a dust-proof seal ring 12 is inlayed in the large end outer ring of upper blowout patche 2, and the outer end of this dust-proof seal ring 12 props up the upper-end surface of seat ring 1 and is positioned at the radial outside of the dustproof projection 11 of annular.

Claims

1. a built-in engineering machinery pivoting support structure, comprises seat ring, upper blowout patche, lower blowout patche and cylinder rolling element, is evenly drilled with the seat ring mounting hole that distributes ringwise and connect the upper and lower end face of seat ring on seat ring; Upper and lower blowout patche is the ladder tubular structure with large and small end, forms raceway in twice between upper blowout patche and seat ring, between lower blowout patche and seat ring, forms raceway under twice, forms one and sidewinder between seat ring side and the outer side surface of upper and lower blowout patche; Described upper and lower, place cylinder rolling element in sidewindering; It is characterized in that:

The upper and lower surface of described seat ring has a upper plenum and cavity once, between upper and lower cavity, by through hole, be communicated with, the transmitter of the embedded light point sensor of upper plenum, photoelectric sensor Wiring port is installed in lower cavity, and this photoelectric sensor Wiring port is connected with photoelectric sensor transmitter by the datawire through through hole;

The large end lower end surface of described upper blowout patche is evenly distributed with some tapped holes ringwise, and tapped hole internal thread connects reflecting plate, and this reflecting plate is the hexagon lag bolt that an end has reflective surface; The centre distance of described tapped hole and upper blowout patche axis equals the centre distance of upper plenum and seat ring axis;

The upper-end surface that described seat ring is positioned at upper plenum outside has the dustproof projection of a ring shape, and a dust-proof seal ring is inlayed in the large end outer ring of described upper blowout patche, and the outer end of this dust-proof seal ring props up the upper-end surface of seat ring and is positioned at the dustproof protruding radial outside of annular.