CN213176502U

CN213176502U - A cooperation mounting structure for axle sleeve

Info

Publication number: CN213176502U
Application number: CN202022227723.9U
Authority: CN
Inventors: 杨朝辉; 赵东辉
Original assignee: Zhengzhou Zhongbang Superhard Tools Co ltd
Current assignee: White Dove Abrasives Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-11
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to an axle sleeve erection equipment technical field, specifically speaking relates to a cooperation mounting structure for axle sleeve, including the outer tube, it has the axis body to peg graft in the outer tube, and the inner wall of outer tube closely bonds and has the bed course, and oilless bearing mechanism is installed to the inner wall of bed course, and oilless bearing mechanism includes fixed frame, and fixed frame is rectangular bar-type texture and inside inner chamber that is provided with, and a plurality of upper chutes have been seted up in proper order to the top inner wall of inner chamber, and the upper chute is convex structure, and a plurality of lower chutes have been seted up in proper order to the bottom inner wall of inner chamber. This an oilless bearing mechanism for cooperation mounting structure of axle sleeve makes traditional interference fit's face contact change into ball point contact, is convenient for insert the axis body and installs, and can be fixed with the axis body, has solved the product fish tail that takes place in traditional interference fit installation, and difficult scheduling problem is dismantled in the installation, avoids the wearing and tearing of long-time use to extravagant scheduling problem has been avoided.

Description

A cooperation mounting structure for axle sleeve

Technical Field

The utility model relates to a shaft sleeve erection equipment technical field, specifically speaking relates to a cooperation mounting structure for axle sleeve.

Background

With the vigorous development of industrial technology in China, the requirements on the machining precision of shaft and sleeve workpieces are increased. The traditional interference fit installation mode has high requirements on the machining precision of the matching surface, the bearing capacity and the stress generated by assembly are sensitive to the actual interference magnitude, the assembly and disassembly are inconvenient, the precision and the roughness of the inner hole of the machined object are reduced, the workpiece can be scratched through interference fit when the installation is carried out, and the service life is easily shortened after the long-time use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooperation mounting structure for axle sleeve to solve the problem that proposes among the above-mentioned background art.

For realizing the above-mentioned purpose, the utility model provides a cooperation mounting structure for axle sleeve, including the outer tube, it has the axis body to peg graft in the outer tube, the inner wall of outer tube closely bonds there is the bed course, oilless bearing mechanism is installed to the inner wall of bed course, oilless bearing mechanism includes fixed frame, fixed frame is rectangular shape structure and inside inner chamber that is provided with, a plurality of upper grooves have been seted up in proper order to the top inner wall of inner chamber, the upper groove is convex structure, a plurality of lower grooves have been seted up in proper order to the bottom inner wall of inner chamber, the lower groove is convex structure, the opening has been seted up to the bottom in lower groove, be provided with the ball between upper groove and the lower groove, the upper portion of ball and the inner wall sliding connection in upper groove, the lower part of ball and the.

Preferably, a protective ring is arranged on the outer wall of one end of the outer sleeve.

Preferably, the upper grooves and the lower grooves are arranged at equal intervals.

Preferably, the top inner wall of the inner cavity is provided with a limiting shaft at two sides of the ball, two ends of the limiting shaft are rotatably connected with the inner wall of the inner cavity, and the limiting shaft and the ball are attached to each other.

Preferably, the radian of the inner wall of the lower groove is larger than that of the inner wall of the upper groove.

Preferably, the shaft body is insertable into the outer sleeve and is pressed and positioned by an oilless bearing mechanism.

Preferably, the oilless bearing mechanism is provided along an axial direction of the outer tube or is provided obliquely with respect to the axial direction of the outer tube.

Compared with the prior art, the beneficial effects of the utility model are that:

this a cooperation mounting structure for axle sleeve, the face contact who makes traditional interference fit through the oilless bearing mechanism that wherein sets up changes into the ball point contact, is convenient for insert the axis body and installs, and can be fixed with the axis body, has solved the product fish tail that takes place in the traditional interference fit installation, and difficult scheduling problem is dismantled in the installation, avoids the wearing and tearing of long-time use to waste scheduling problem has been avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the oilless bearing mechanism of the present invention;

fig. 3 is a schematic diagram of the external structure of the present invention.

The various reference numbers in the figures mean:

1. an outer sleeve; 11. a cushion layer; 12. a guard ring; 2. a shaft body; 3. an oilless bearing mechanism; 31. a fixing frame; 311. an inner cavity; 312. an upper groove; 313. a lower groove; 3131. an opening; 32. a ball bearing; 33. and a limiting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The utility model provides a cooperation mounting structure for axle sleeve, as shown in figures 1-3, including outer tube 1, the axis body 2 is inserted in the outer tube 1, the inner wall of outer tube 1 is closely bonded with bed course 11, protect axis body 2, the inner wall of bed course 11 is installed and is had oil-free bearing mechanism 3, be convenient for the axis body 2 to insert in the outer tube 1, oil-free bearing mechanism 3 includes fixed frame 31, fixed frame 31 is rectangular shape structure and inside is provided with inner chamber 311, the top inner wall of inner chamber 311 has seted up a plurality of upper grooves 312 in proper order, upper groove 312 is circular arc structure, the bottom inner wall of inner chamber 311 has seted up a plurality of lower grooves 313 in proper order, lower groove 313 is circular arc structure, the bottom of lower groove 313 has seted up opening 3131, be provided with ball 32 between upper groove 312 and lower groove 313, the upper portion of ball 32 and the inner wall sliding connection of upper groove 312, the lower, when the axis body 2 is inserted, the balls 32 roll, so that the axis body 2 conveniently extends inwards, when the axis body 2 is inserted, the surface contact different from the traditional interference fit is changed into the ball point contact, and the axis body 2 is conveniently inserted for installation.

Specifically, the protective ring 192 is installed to the one end outer wall of outer tube 1, protects the one end of outer tube 1, avoids causing the damage.

In this embodiment, the upper grooves 312 and the lower grooves 313 are arranged at equal intervals, so that the balls 32 can be installed at equal intervals.

Further, the top inner wall of the inner cavity 311 is located at two sides of the ball 32 and is provided with a limiting shaft 33, two ends of the limiting shaft 33 are rotatably connected with the inner wall of the inner cavity 311, the limiting shaft 33 is attached to the ball 32, and the ball 32 can roll stably.

Further, the curvature of the inner wall of the lower groove 313 is greater than the curvature of the inner wall of the upper groove 312, so that the bottom of the ball 32 protrudes from the opening 3131 of the lower groove 313.

Further, the axis body 2 can insert in the outer tube 1 and compress tightly the location through oilless bearing mechanism 3 to guarantee the fixed of axis body 2.

Further, the oilless bearing mechanism 3 is inclined along the axial direction of the outer sleeve 1 or relative to the axial direction of the outer sleeve 1, and the outer wall of the shaft body 2 can be conveniently compressed.

The cooperation mounting structure for axle sleeve of this embodiment is when using, at first insert the axis body 2 from the one end of outer tube 1, inwards slide along the inner wall of oilless bearing mechanism 3, ball 32 rolls, the point contact between the outer wall of ball 32 and the outer wall of axis body 2, reduce friction between, the smooth inwards slip of the axis body 2 of being convenient for, after sliding in, through screwing up the nut in the one end of axis body 1, can fix the outer wall of axis body 2, thereby accomplish the installation of axis body 1, avoid the activity of axis body 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cooperation mounting structure for axle sleeve, includes outer tube (1), it has axis body (2), its characterized in that to peg graft in outer tube (1): a cushion layer (11) is tightly adhered to the inner wall of the outer sleeve (1), an oilless bearing mechanism (3) is arranged on the inner wall of the cushion layer (11), the oilless bearing mechanism (3) comprises a fixed frame (31), the fixed frame (31) is of a long strip-shaped structure, an inner cavity (311) is arranged in the fixed frame, a plurality of upper grooves (312) are sequentially arranged on the inner wall of the top of the inner cavity (311), the upper grooves (312) are of circular arc structures, a plurality of lower grooves (313) are sequentially arranged on the inner wall of the bottom of the inner cavity (311), the lower groove (313) is of an arc-shaped structure, the bottom of the lower groove (313) is provided with an opening (3131), a ball (32) is arranged between the upper groove (312) and the lower groove (313), the upper part of the ball (32) is connected with the inner wall of the upper groove (312) in a sliding way, and the lower part of the ball (32) is connected with the inner wall of the lower groove (313) in a sliding way.

2. The fitting mounting structure for a bushing according to claim 1, wherein: and a protective ring (12) is arranged on the outer wall of one end of the outer sleeve (1).

3. The fitting mounting structure for a bushing according to claim 1, wherein: the upper groove (312) and the lower groove (313) are arranged at equal intervals.

4. The fitting mounting structure for a bushing according to claim 1, wherein: the top inner wall of inner chamber (311) is located the both sides department of ball (32) and installs spacing axle (33), the both ends of spacing axle (33) are rotated with the inner wall of inner chamber (311) and are connected, laminate between spacing axle (33) and ball (32).

5. The fitting mounting structure for a bushing according to claim 1, wherein: the radian of the inner wall of the lower groove (313) is larger than that of the inner wall of the upper groove (312).

6. The fitting mounting structure for a bushing according to claim 1, wherein: the shaft body (2) can be inserted into the outer sleeve (1) and is pressed and positioned through the oilless bearing mechanism (3).

7. The fitting mounting structure for a bushing according to claim 1, wherein: the oilless bearing mechanism (3) is arranged along the axial direction of the outer sleeve (1) or is obliquely arranged relative to the axial direction of the outer sleeve (1).