CN210178760U - Bearing bush with self-centering mounting function - Google Patents

Abstract

The utility model provides a bearing bush with self-centering installation function, which is installed on a base, the bearing bush is inserted into the base from left to right, a support hole is arranged on the bearing bush, a taper hole with a cross section area reduced from left to right is arranged in the base, the middle part of the outer wall of the bearing bush is provided with a positioning conical surface matched with the taper hole, the right end of the outer wall of the bearing bush is provided with an external thread, a nut is installed on the external thread, the nut is screwed and attached to the right end surface of the base, the positioning installation precision is improved by arranging the positioning conical surface and the taper hole, meanwhile, the bearing bush is different from the transition fit in the prior art by an axially tensioned fixing mode, the influence on the self roundness and cylindricity of the bearing bush is avoided, the position precision of the support hole after the installation of the bearing bush is further improved, the shape tolerance of the support hole is ensured, and the support effect on the rotating shaft installed in, the service life of the mechanism is prolonged.

Description

Bearing bush with self-centering mounting function

Technical Field

The utility model relates to a transmission field especially relates to a bearing bush with from centering installation function.

Background

The bearing bush is used for the contact part of the rotating shaft such as a pin shaft and the mounting hole, plays a role in supporting the rotating shaft to rotate, is also called as a shaft sleeve as a whole, and the mounting and manufacturing precision of the bearing bush is the key for ensuring that the rotating shaft can stably run for a long time.

Need guarantee the mounting hole when the axle bush installation, the support hole of axle bush and coaxial with the three of axle journal, will guarantee the installation accuracy through the support hole of axle bush and the axiality of excircle usually among the prior art, but the excircle of axle bush is adopting transition fit's cooperation mode with the mounting hole installation usually, the coaxial accuracy of high accuracy can not be guaranteed to transition fit on the one hand, the axle bush internal stress that on the other hand transition fit produced can influence the circularity and the cylindricity of axle bush self, can cause out of round emergence.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: current axle bush installation accuracy is lower, and the installation can influence the shape of axle bush, causes the later stage to use the trouble easily, the utility model provides an above-mentioned problem is solved to axle bush with from centering installation function.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a bearing shell with from centering installation function, installs on the base, the bearing shell inserts from left to right in the base, be provided with the support hole on the bearing shell, be provided with the taper hole that reduces from left to right cross-sectional area in the base, the outer wall middle part of bearing shell be provided with taper hole matched with location conical surface the outer wall right-hand member of bearing shell is provided with the external screw thread, install the nut on the external screw thread, the nut screw laminate in the right-hand member face of base.

Further: the left end of the outer wall of the bearing bush is provided with a clamping head which protrudes outwards along the radial direction, a bayonet is arranged on the base at a position corresponding to the clamping head, and the clamping head is embedded in the bayonet.

Further: the number of the clamping heads and the number of the bayonets are two, and the clamping heads and the bayonets are uniformly distributed along the circumferential direction.

Further: and a lubricating oil groove is formed in the hole wall of the supporting hole.

The beneficial effects of the utility model are that, the utility model discloses axle bush with from centering installation function has improved location installation accuracy through the cooperation that sets up the location conical surface and taper hole, simultaneously through the taut fixed mode of axial, is different from the transition fit among the prior art, has avoided the influence of counter shaft bush self circularity and cylindricity, has further improved the position accuracy of back supporting hole of axle bush installation and has guaranteed the shape tolerance of supporting hole, has ensured the supporting effect to the pivot of packing into in the supporting hole, has prolonged the life of mechanism.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a bearing bush with a self-centering mounting function according to the present invention;

fig. 2 is a left side view of fig. 1, showing the cartridge and the cartridge installed.

In the figure, the bearing comprises a base 1, a base 2, a bearing bush 3, a support hole 4, a taper hole 5, a positioning taper surface 6, an external thread 7, a nut 8, a clamping head 9, a bayonet 10 and a lubricating oil groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

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", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and 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.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

As shown in fig. 1, the utility model provides a axle bush 2 with from centering installation function installs on base 1, axle bush 2 inserts from left to right in base 1, be provided with supported hole 3 on the axle bush 2, be provided with taper hole 4 that the cross-sectional area reduces from left to right in the base 1, the outer wall middle part of axle bush 2 be provided with taper hole 4 matched with location conical surface 5 the outer wall right-hand member of axle bush 2 is provided with external screw thread 6, install nut 7 on the external screw thread 6, nut 7 screw the laminating in the right-hand member face of base 1.

When using, axle bush 2 inserts in base 1 from left to right, the location conical surface 5 on the axle bush 2 is laminated in taper hole 4, twist nut 7 soon on external screw thread 6 and screw up the laminating on base 1, nut 7 can be taut axle bush 2 right in the axial like this, guaranteed laminating each other of location conical surface 5 and taper hole 4 on the one hand, the mutual contact through the conical surface plays from the effect of centering, on the other hand, it is taut along the axial right with axle bush 2, the static frictional force that produces through conical surface contact laminating can play the effect of fixing axle bush 2 in base 1, simple to operate and positioning accuracy are high.

Referring to fig. 2, a chuck 8 protruding outward in the radial direction is disposed at the left end of the outer wall of the bearing bush 2, a bayonet 9 is disposed on the base 1 at a position corresponding to the chuck 8, and the chuck 8 is embedded in the bayonet 9. The number of the clamping heads 8 and the number of the bayonets 9 are two, and the clamping heads 8 and the bayonets 9 are uniformly distributed along the circumferential direction. Dop 8 gomphosis on axle bush 2 can play the effect of effectively stopping the commentaries on classics when revolving axle bush 2 in the installation of axle bush 2 among bayonet 9, makes things convenient for operating personnel to screw up nut 7 more, simultaneously, can effectively avoid the axle bush 2 to rotate the not hard up that arouses in the installation 2 use that finishes, can play the locking effect of whole mechanism. Two dops 8 and bayonet 9 of symmetry design can increase locking effect, improve the locking ability of axle bush 2.

The wall of the supporting hole 3 is provided with a lubricating oil groove 10, the lubricating oil groove 10 can store sufficient grease or lubricating oil, effective lubrication is provided when the bearing bush 2 works, the abrasion of the inner wall of the supporting hole 3 or a pin shaft arranged in the supporting hole is reduced, the service life is prolonged, and failure conditions such as occlusion between the pin shaft and the supporting hole 3 are avoided.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (4)

1. The utility model provides a bearing bush with from centering installation function installs on base (1), bearing bush (2) are inserted from left to right in base (1), be provided with support hole (3) on bearing bush (2), its characterized in that: the bearing bush is characterized in that a taper hole (4) with a cross section area reduced from left to right is formed in the base (1), a positioning conical surface (5) matched with the taper hole (4) is arranged in the middle of the outer wall of the bearing bush (2), an external thread (6) is arranged at the right end of the outer wall of the bearing bush (2), a nut (7) is installed on the external thread (6), and the nut (7) is screwed and attached to the right end face of the base (1).

2. Bearing shell with self-centring attachment according to claim 1, characterized in that: the left end of the outer wall of the bearing bush (2) is provided with a clamping head (8) which protrudes outwards in the radial direction, a bayonet (9) is arranged on the base (1) at a position corresponding to the clamping head (8), and the clamping head (8) is embedded in the bayonet (9).

3. Bearing shell with self-centring attachment according to claim 2, characterized in that: the number of the clamping heads (8) and the number of the bayonets (9) are two, and the clamping heads (8) and the bayonets (9) are uniformly distributed along the circumferential direction.

4. Bearing shell with self-centring attachment according to claim 1, characterized in that: a lubricating oil groove (10) is arranged on the wall of the supporting hole (3).

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