CN2804461Y

CN2804461Y - Cardinal axis with rotary sleeve

Info

Publication number: CN2804461Y
Application number: CN 200520084922
Authority: CN
Inventors: 孙平
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2005-06-29
Filing date: 2005-06-29
Publication date: 2006-08-09
Anticipated expiration: 2015-06-29

Abstract

The utility model relates to a cardinal axis with a rotary sleeve, which provides the rotary sleeve structure sheathed on the periphery of a main shaft for sealing a lubricating oil passage on the connecting point of the cardinal axis and a connected piece. The utility model can realize the mutual rotation of the rotary sleeve and the connected piece and can ensure good lubrication kept between the rotary sleeve and the main shaft. Dust formed by the field operation is difficult to enter the inside of the rotary sleeve and can not block the oil passage. The cardinal axis with the rotary sleeve is provided with one main shaft connected with one side end, and the main shaft has a multidiameter structure. The inside of the main shaft is provided with a lubricating oil passage, and a shaft with a thin diameter of the main shaft is respectively sheathed with one rotary sleeve and one end sleeve. The end sleeve is in sealing connection with the main shaft. The outer diameter of the rotary sleeve and the maximum outside diameter of the shaft with a thick diameter of the main shaft are the same, and the end of the lubricating oil passage extends to an inner surface of the rotary sleeve. Along the oil passage, the lubricating oil can be guided to the inner surface of the rotary sleeve, which is in contact with the shaft with a thin diameter of the main shaft. When the rotary sleeve is rotated along the shaft with a thin diameter, the efficient lubrication can be carried out for reducing the friction resistance.

Description

Hinge with pivoted housing

Technical field

The utility model is a kind of novel hinge that is applied to lifting or haulage device, and main shaft one side of this hinge is arranged with a pivoted housing structure that is used for the seal lubrication oil duct specifically.

Background technique

Generally adopt various large-scale liftings and haulage device at present in places such as industrial and mining enterprise, harbor stations, as the grab bucket of port machine, loading shovel etc., this kind equipment all disposes hinged shaft mechanism.

Existing hinge is provided with the oil leab that extends to the main shaft external diameter from the center in its main shaft inside, and this oil leab extends to the joining place of main shaft and connected piece from the end of hinge.Lubricant oil can be caused above-mentioned joining place by oil leab, thereby reduce the transmission wearing and tearing between main shaft and the connected piece.But existing hinge does not carry out necessary sealing to oil leab, the joining place of hinge and connected piece has certain clearance, after hinge moved a period of time, oil leab will be stopped up by the dust that field operation produces, thereby caused losing the function of carrying lubricant oil.

The model utility content

Hinge with pivoted housing described in the utility model, its purpose of design is to address the above problem with deficiency provides the pivoted housing that is set in main shaft periphery side structure, thereby the joining place at hinge and connected piece seals oil leab, not only can realize that pivoted housing rotates, but also can guarantee to keep between pivoted housing and the main shaft good lubricated with connected piece.It is inner and can't stop up oil duct that the formed dust of field operation is difficult for entering pivoted housing, thus service life of equipment is long, also than easy care.

For realizing above-mentioned purpose of design, the hinge with pivoted housing described in the utility model, its structure mainly has:

One is connected the main shaft of a side end, and this main shaft is a ladder axle construction;

Be provided with an oil leab in the inside of main shaft;

Be arranged with a pivoted housing and an end cover on the axle of the thin footpath of main shaft respectively, the end cover is connected with main shaft seal.

As the hinge of above-mentioned structure, the external diameter of described pivoted housing is identical with the maximum outside diameter of the particle size axle of main shaft, so the hinge of socket pivoted housing can be inserted in the connected piece swimmingly.

Simultaneously, the end of described oil leab extends to the internal surface of described pivoted housing, be the contacted internal surface of thin footpath axle that lubricant oil can be directed to pivoted housing and main shaft along oil duct, when thin footpath, pivoted housing edge axle rotates, can carry out whereby lubricating effectively, to reduce surface friction drag, to reduce the wearing and tearing on surface.

For improving the rotating property of pivoted housing on the axle surface, thin footpath of main shaft, further improving design is the pivoted housing that is socketed on the main shaft, and its both side ends realizes being connected with main shaft.

Concrete linkage structure can be to be respectively arranged with locating slot at the particle size axle of main shaft and ladder end face and the end cover between the axle of thin footpath on the end face of pivoted housing, and to be respectively arranged with a tenon portion in the two side ends of pivoted housing.By above-mentioned chase mortise structure, pivoted housing can be inserted into respectively the internal face of the ladder wall of main shaft and end cover from two side ends, connect and sealing mutually thereby form.

When pivoted housing rotated along thin footpath axle, locating slot tenon structure one can play the radial location effect, and two can carry out good sealing with oil leab.

Certainly, the linkage structure between pivoted housing and the main shaft is not limited to peg graft, and also can take such as buckle linkage structure or ring structure etc.

Be arranged on the oil leab of main shaft inside, its effect is the contacted internal surface of thin footpath axle that lubricant oil is guided to pivoted housing and main shaft, described oil leab can extend from the end or the end cover one side direction pivoted housing direction of hinge, and the end of oil leab extends to the internal surface of described pivoted housing.

Fixedlying connected with main shaft in the exterior edge face of described end cover, can take welding manner, also can take pin or hot jacket method, interconnects.

As above content, the advantage with hinge of pivoted housing described in the utility model is:

1, described hinge, its pivoted housing carries out socket from the outside of main shaft, thereby can oil leab be sealed fully from the outside, prevents the obstruction of dust to oil leab to greatest extent;

2, pivoted housing is connected with main shaft, end cover from both sides, can realize the sliding capability and the sealability of pivoted housing better;

3, the lubricant oil in oil leab can be brought into play lubrication for a long time, fully plays protection and prolongation oiling life cycle to integral device, helps the corrective maintenance of field operation.

Description of drawings:

Fig. 1 is the overall assembling schematic representation that has the hinge of pivoted housing described in the embodiment 1.

Fig. 2 is that A among Fig. 1 is to structural representation.

Fig. 3 is the section of structure of main shaft described in the embodiment 1.

Fig. 4 is the section of structure of pivoted housing described in the embodiment 1.

Fig. 5 is the sectional drawing of the cover of end described in the embodiment 1.

Fig. 6 is the side schematic view of Fig. 5.

Fig. 7 is the structural profile schematic representation that has the hinge of pivoted housing described in the embodiment 2.

Fig. 8 is the section of structure of main shaft described in the embodiment 2.

Fig. 9 is the sectional drawing of pivoted housing described in the embodiment 2.

Figure 10 is the sectional drawing of the cover of end described in the embodiment 2.

Extremely shown in Figure 10 as Fig. 1, end 1, main shaft 2, oil leab 3, pivoted housing 4, end cover 5;

Thin footpath axle 21, particle size axle 22, ladder wall 23, main shaft locating slot 24;

Pivoted housing end face 41, tenon 42;

End cover locating slot 51, positioning screw hole 52.

Embodiment

Embodiment 1, and is extremely shown in Figure 6 as Fig. 1, the hinge with pivoted housing described in the utility model, and its end 1 connects a main shaft 2.

Described main shaft 2 is a ladder axle construction, has thin footpath axle 21, particle size axle 22.

Be provided with an oil leab 3 in the inside of main shaft 2, this oil leab 3 is the extension of 1 one side direction pivoted housings, 4 directions from the end, and extends to the below of the internal surface of described pivoted housing 4.

Be arranged with a pivoted housing 4 and end cover 5 on thin footpath axle 21 respectively, end cover 5 adopts pin connected construction with thin footpath axle 21 by positioning pin hole 52.

The external diameter of described pivoted housing 4 is identical with the maximum outside diameter of particle size axle 22.

Ladder wall 23 and end at main shaft 2 overlap on the wall 41 of 5 inboards, are respectively arranged with locating

slot

24,51, and the two side ends of pivoted housing 4 is respectively arranged with a tenon portion 42.By above-mentioned chase mortise structure, pivoted housing 4 can be inserted into respectively ladder wall 23 and the end cover 5 from two side ends, connect and sealing mutually thereby form.

Embodiment 2, and to shown in Figure 10, as different from Example 1, described hinge with pivoted housing, its this oil leab 3 extend to the below of the internal surface of pivoted housing 4 from end cover 5 one sides as Fig. 7.

And, take the linkage structure of welding between end cover 5 and the thin footpath axle 21.

Claims

1, a kind of hinge with pivoted housing has a main shaft that is connected a side end, is provided with an oil leab in the inside of main shaft, and it is characterized in that: described main shaft is a ladder axle construction, is arranged with a pivoted housing and an end cover on the axle of the thin footpath of main shaft respectively;

The end of described oil leab extends to the internal surface of described pivoted housing;

The end cover is fixedlyed connected with main shaft;

The external diameter of described pivoted housing is identical with the maximum outside diameter of the particle size axle of main shaft.

2, the hinge with pivoted housing according to claim 1 is characterized in that: be socketed in the pivoted housing on the main shaft, its both side ends realizes being connected with main shaft.

3, the hinge with pivoted housing according to claim 2 is characterized in that: be respectively arranged with locating slot on the inboard wall of the smart footpath axle of main shaft and the ladder wall between the axle of thin footpath and end cover, and be respectively arranged with a tenon portion in the two side ends of pivoted housing.

4, the hinge with pivoted housing according to claim 1 and 2 is characterized in that: described oil leab can extend from the end or the end cover one side direction pivoted housing direction of hinge, and the end of oil leab extends to the internal surface of described pivoted housing.

5, the hinge with pivoted housing according to claim 1 and 2 is characterized in that: fixedly connected with main shaft in the exterior edge face of described end cover, employing is welded or pin interconnects or the hot jacket linkage structure.