CN201228487Y

CN201228487Y - Track pulley component

Info

Publication number: CN201228487Y
Application number: CNU2008200079992U
Authority: CN
Inventors: 陈智文; 陈智诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-11
Filing date: 2008-07-11
Publication date: 2009-04-29
Anticipated expiration: 2018-07-11

Abstract

The utility model discloses a track-pulley assembly which comprises a pulley arranged inside a track-shaped material. The pulley comprises an upper shell and a lower shell which are mounted on a main shaft, wherein the upper shell and the lower shell are respectively provided with an annular ball bearing and a thrust ball bearing. The track-shaped material comprises two opposite guide surfaces which are coaxial to the main shaft, wherein one guide surface has a supporting plane which is in running fit with the supporting plane of the upper shell, and the other guide surface has a supporting plane which is in running fit with the supporting plane of the lower shell. In the track-pulley assembly, the annular ball bearing has the guide function and the thrust ball bearing is capable of reducing the frictional force, and the upper and the lower shells are respectively provided with the guide plane and the supporting plane inside the track-shaped material; the guide plane and the supporting plane on the track-shaped material can effectively reduce the frictional force during the sliding process, thereby saving labor and enabling the pulley to move freely inside the track-shaped material.

Description

A kind of track pulley assembly

Technical field

The utility model relates to pulley, is meant a kind of track pulley assembly especially.

Background technology

In house decoration, a lot of door and windows adopt the track pulley, can reduce taking up room of door and window, but the track pulley that adopts at present, pulley adopts a rotary body form, the pulley external diameter becomes the radial load relation with the rail supported face, can move along a straight line, but malleable direction not, during curvilinear motion, can cause deflection friction, resistance bigger, thus the movement locus problem of restriction track pulley.

The utility model content

In view of this, the utility model is to provide a kind of track pulley assembly, with the limited problem of the movement locus that solves above-mentioned track pulley.

For addressing the above problem, the utility model provides a kind of track pulley assembly, comprising:

Place the pulley of track profile;

Pulley comprises: be installed in upper shell and lower house on the main shaft, upper shell and lower house have radial ball bearing, thrust ball bearing respectively;

Track profile has, two relative spigot surfaces coaxial with main shaft have supporting surface on the spigot surface, form the relation of being rotatably assorted with the supporting surface of upper shell; Has supporting surface on another spigot surface, with the supporting surface formation relation of being rotatably assorted on the lower house.

Preferably, track profile has at least more than one broken line angle.

Preferably, track profile has at least more than one curve radian.

Preferably, has the securing member of installing and regulating the lifting object height on the main shaft.

Track pulley in the utility model adopts radial ball bearing to play the guiding role, and thrust ball bearing can reduce frictional force, and upper and lower casing has spigot surface and supporting surface respectively in track profile; Supporting surface on the track profile and spigot surface can effectively reduce the frictional force in the sliding process, use more laborsavingly, and pulley is rotated can freely-movable in track profile; And track profile can be convenient to install and use according to actual conditions for the broken line track or the curve track of radian at any angle arbitrarily.

Description of drawings

Fig. 1 is that pulley is installed in the schematic diagram in the track profile;

Fig. 2 is the structure chart of pulley;

Fig. 3 is the schematic diagram that pulley slides in track profile.

The specific embodiment

For clearly demonstrating the technical scheme in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.

Referring to Fig. 1, Fig. 1 is the pulley 1 in track profile 2, wherein, the structure chart of pulley 1 can be referring to Fig. 2, the structure of pulley comprises: be installed in upper shell 252, lower house 251 on the main shaft 26, radial ball bearing 23 and thrust ball bearing 24 are installed respectively in the upper and lower casing, back-up ring 22 and nut 21 are installed on top sheave 252, securing member 28 and hold-down nut 27 also are installed on main shaft 26.

Schematic diagram after pulley 1 is installed in track profile 2 can be referring to Fig. 3, have on the track profile 2 and pulley 1 homoaxial two spigot surfaces 31, on two spigot surfaces 31, have upper shell supporting surface 32 and lower house supporting surface 31, upper shell supporting surface 32 forms the relation of being rotatably assorted with the supporting surface 20 of upper shell 252, lower house supporting surface 34 forms the relation of being rotatably assorted with the supporting surface 29 of lower house 251, thereby make pulley 1 in track profile 2 in the rolling process, form the guiding relation by spigot surface 31 and track profile 2, form the supporting relation of load by supporting surface 29 and supporting surface 20.Upper shell 252 and lower house 251 adopt the high-strength abrasion-proof engineering plastics, and damping noise reduction, and securing member 28 on the main shaft 26 and hold-down nut 27 can be realized the adjustment of lifting object setting height(from bottom), make things convenient for the height of lifting object to regulate.

Supporting surface on the track profile 2 and spigot surface because upper and lower casing is all had supporting surface, therefore can effectively reduce the frictional force in the sliding process, use more laborsaving; Track profile 2 can be the broken line track or the curve track of radian at any angle arbitrarily, as L type 90 degree broken line tracks, or the two-way 90 degree broken line tracks of T type, can also be " rice " font or " ten " font or circle or ellipse etc., the broken line track of track profile 2 or curve track place, can be made of one with track profile 2, also can make split, the user is according to actual mode of occupation fabrication and installation.Track profile 2 can adopt various metal material, as high strength steel, stainless steel, copper or aluminium alloys etc.

Track pulley assembly in the utility model can be applicable to the mobile door and window in places such as restaurant, office premises, household courtyard or screen etc.; Also can be applicable to factory's streamline, conveyer belt etc.

For the device of being set forth among each embodiment of the utility model, all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, a kind of track pulley assembly is characterized in that, comprising: the pulley (1) that places track profile (2);

Pulley (1) comprising: be installed in upper shell (252) and lower house (251) on the main shaft (26), upper shell (252) and lower house (251) have radial ball bearing (23), thrust ball bearing (24) respectively;

Track profile (2) has, two relative spigot surfaces (31) coaxial with main shaft (26) have supporting surface (32) on the spigot surface (31), form the relation of being rotatably assorted with the supporting surface (20) of upper shell (252); Has supporting surface (34) on another spigot surface (31), with supporting surface (29) the formation relation of being rotatably assorted on the lower house (251).

2, track pulley assembly according to claim 1 is characterized in that, track profile (2) has at least more than one broken line angle.

3, track pulley assembly according to claim 1 is characterized in that, track profile (2) has at least more than one curve radian.

4, track pulley assembly according to claim 1 is characterized in that, has the securing member (28) of installing and regulating the lifting object height on the main shaft (26).