CN2871259Y

CN2871259Y - Universal-wheel rack

Info

Publication number: CN2871259Y
Application number: CN 200620023322
Authority: CN
Inventors: 郭九全
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-09
Filing date: 2006-01-09
Publication date: 2007-02-21
Anticipated expiration: 2016-01-09

Abstract

The utility model relates to a universal wheel carrier, belonging to castor carrier technology field, which is characterized in that the utility model comprises a rotating plate arranged with castor boards and a fixed chassis provided with circular protrusion, wherein a first circular groove and a second circular groove arranged on the end of the circular protrusion and the rotating plate form an enclosure, whose cross section is round; balls are arranged in the round area and the end face of the circular protrusion is away from upper end face of the rotating plate with a certain distance. The utility model solves the problems of heavy universal wheel carrier damage caused by heavy and uneven distributed stress and can be applied on every castor.

Description

The cardan wheel shelf

Technical field

The utility model belongs to the foot wheel carrier technical field, relates in particular to a kind of cardan wheel shelf.

Background technology

At present, the cardan wheel shelf that uses, adopt mostly and between fixed underpan lower end and rotating disk, pressure bearing is installed, and fixed underpan and rotating disk keep at a certain distance away, make rotating disk to rotate to all directions with respect to fixed underpan, but, in use, owing to the power that rotating disk is suffered is inhomogeneous, the build-up of pressure bearing deformation, and the big side rotating disk of pressure contacts with fixed underpan, influence is rotated, it is big that opposite side rotating disk and fixed underpan spacing distance become, and build-up of pressure bearing dish and ball are deviate from, and shorten its service life.

The utility model content

The technical matters that the utility model solves causes rotating disk and fixed underpan contact friction influence to rotate because of pressure is inhomogeneous and can improve the cardan wheel shelf in service life with regard to providing a kind of can preventing.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the cardan wheel shelf, comprise the rotating disk and the fixed underpan that have the foot rest plate, described fixed underpan lower surface has circular protrusion, having the cross section in the end of described circular protrusion is semi-round first annular recess, have corresponding on described rotating disk top and the cross section is semi-round second annular recess with first annular recess, described first annular recess and second annular recess surround the cross section and are circular annulus, have ball in described annulus, the end face of described circular protrusion and described rotating disk upper surface keep at a certain distance away.

Its additional technical feature is: described circular protrusion end is positioned at the height of the height of fixed underpan radial outside greater than its radially inner side; On described belt projection, have the oilhole that makes annulus and external communications; Have the ring-type block that contacts with the medial surface of circular protrusion in described rotating disk upper surface.

Cardan wheel shelf provided by the utility model compared with prior art, have the following advantages: one, because surrounding the cross section, first annular recess and second annular recess be circular annulus, in described annulus, have ball, the end face of described circular protrusion and described rotating disk upper surface keep at a certain distance away, when discontinuity with respect to rotating disk, the deformation of ball is less, can not cause the contact friction of the upper surface of the end face of circular protrusion and rotating disk, prolong its service life; Its two, can lubricating oil be joined in the annulus friction of minimizing ball and annulus wall by oilhole owing on described belt projection, have the oilhole that makes annulus and external communications; Its three owing to have the ring-type block that contacts with the medial surface of circular protrusion in described rotating disk upper surface, this block has stopped the lubricant discharge of annulus.

Description of drawings

Accompanying drawing is the structural representation of the utility model cardan wheel shelf.

The specific embodiment

Be described in further details below in conjunction with the structure and the use principle of accompanying drawing the utility model cardan wheel shelf.

As shown in the figure, the utility model cardan wheel shelf comprises fixed underpan 1 and has the rotating disk 5 of foot rest plate 4, fixed underpan 1 lower surface has circular protrusion 2, having the cross section in the end of circular protrusion 2 is first annular recess 3 of semicircle, have corresponding in the upper surface of rotating disk 5 and the cross section is second annular recess 6 of semicircle with first annular recess 3, first annular recess 3 and second annular recess 6 surround the cross section for circular annulus 7, have several balls 8 in annulus 7.Castor 9 is installed on foot rest plate 4.Rotating disk 5 is connected by the screw rod 13 that has bearing 12 with fixed underpan 1.

In time lubricated in order to make that ball 8 obtains in annulus 7, on the projection 2 of going in ring, have the oilhole 10 that makes annulus 7 and external communications.

In order to prevent to flow out in the interval of lubricating oil between the upper surface of projection 2 lower surfaces and rotating disk 5 of going in ring in the annulus 7, have the ring-type block 11 that contacts with the medial surface of circular protrusion in rotating disk 5 upper surfaces.

For weight capacity and the acid-alkali-corrosive-resisting that increases this cardan wheel shelf, circular protrusion 2, ball 8 and rotating disk 5 preferably adopt hardness to make than big and resistant to corrosion steel material.

When using, fixedly on the car, rotating disk 5 passes through the rotation of ball 8 and bearing 12, can be with respect to the rotation of fixed underpan to all directions with fixed underpan 1.When 8 dry need the lubricating of the ball in the annulus 7, add lubricating oils by oilhole 5 and get final product.

Claims

1, the cardan wheel shelf, comprise the rotating disk and the fixed underpan that have the foot rest plate, it is characterized in that: described fixed underpan lower surface has circular protrusion, having the cross section in the end of described circular protrusion is semi-round first annular recess, have corresponding on described rotating disk top and the cross section is semi-round second annular recess with first annular recess, described first annular recess and second annular recess surround the cross section and are circular annulus, have ball in described annulus, the end face of described circular protrusion and described rotating disk upper surface keep at a certain distance away.

2, cardan wheel shelf according to claim 1 is characterized in that: described circular protrusion end is positioned at the height of the height of fixed underpan radial outside greater than its radially inner side.

3, cardan wheel shelf according to claim 1 is characterized in that: have the oilhole that makes annulus and external communications on described belt projection.

4, cardan wheel shelf according to claim 3 is characterized in that: have the ring-type block that contacts with the medial surface of circular protrusion in described rotating disk upper surface.