CN214946178U

CN214946178U - Novel axial bearing structure of lead screw assembly

Info

Publication number: CN214946178U
Application number: CN202120854523.8U
Authority: CN
Inventors: 张松松; 陈垚为; 冯相如; 胡鸣涛
Original assignee: Changzhou Kaidi Electrical Co Ltd
Current assignee: Changzhou Kaidi Electrical Co Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-30
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to a novel axial bearing structure of lead screw subassembly, including the single-end lead screw, the single-end lead screw on be equipped with worm wheel, bearing bush and bearing, bearing bush's one end with worm wheel fixed connection, the other end with bearing fixed connection, the single-end lead screw on with the cooperation department of the last centre bore of bearing bush be provided with lead screw support piece, lead screw support piece with single-end lead screw interference fit is used for protecting the single-end lead screw and avoids unsettled part's atress inhomogeneous through increasing lead screw support piece, realized that the lead screw can artificially increase the problem of fixed step.

Description

Novel axial bearing structure of lead screw assembly

Technical Field

The utility model belongs to the technical field of the lead screw subassembly assembly technique and specifically relates to a novel axial bearing structure of lead screw subassembly.

Background

As is well known, the single-head screw rod is widely applied to machine devices in various industries due to its advantages of simple structure and low cost, but the single-head screw rod has defects such as:

1. the axial bearing capacity of the single-end screw rod is eccentric, and single-side collapse of parts fixed on the screw rod is easy to occur;

2. the screw rod is rolled without reserving a plane step.

For the stability of mechanical devices employing single-headed screw assemblies, improvements in the screw assemblies are required.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the prior art, an improved axial bearing structure of a novel screw rod assembly is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a novel axial load-bearing structure of lead screw subassembly, includes the single-end lead screw, the single-end lead screw on be equipped with worm wheel, bearing bush and bearing, bearing bush's one end with worm wheel fixed connection, the other end with bearing fixed connection, the single-end lead screw on with the cooperation department of the centre bore on the bearing bush be provided with lead screw support piece, lead screw support piece with single-end lead screw interference fit (prevent askew to one side), and support the bearing bush.

Furthermore, the main body of the screw rod supporting piece is of a cylindrical structure, the top end of the screw rod supporting piece is clamped between the single-end screw rod and the worm wheel through the arrangement of the convex ring body, and the assembly is carried out until the stress of the suspended part of the single-end screw rod is balanced, so that the unilateral collapse of a part arranged on the screw rod can be effectively prevented;

furthermore, the bearing of the utility model is fixed on the bearing bush through the single-head screw rod spin riveting;

furthermore, the bearing bush of the utility model is pressed on the single-head screw rod through a gasket;

further, worm wheel and bearing bush are integrative injection structure, reduction in production cost improves production efficiency.

The utility model has the advantages that: the defect of existence among the background art is solved, it is inhomogeneous to avoid the atress of unsettled part for protecting the single-end lead screw through increasing lead screw support piece, has realized that logical rolling lead screw can artificially increase the problem of fixed step.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

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

In the figure: 1. the single-head screw rod comprises a single-head screw rod 2, a screw rod supporting piece 3, a worm wheel 4, a bearing bush 5, a bearing 6, a gasket 7 and a convex ring body.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, fig. 2 and fig. 3 the utility model relates to an embodiment of novel axial bearing structure of lead screw subassembly, including single-end lead screw 1, single-end lead screw 1 on be equipped with worm wheel 3, bearing bush 4 and bearing 5, bearing bush 4 one end with 3 fixed connection of worm wheel, the other end with 5 fixed connection of bearing, single-end lead screw 1 on with the cooperation department of the centre bore on the bearing bush 4 be provided with lead screw support piece 2, lead screw support piece 2 with 1 interference fit of single-end lead screw, and support bearing bush 4.

Wherein, lead screw support piece 2's main part is the cylinder structure, and the top is in through setting up 7 joints of the convex ring body between single-end lead screw 1 and the worm wheel 3, assembles to the unsettled part atress that makes single-end lead screw 1 balanced, and bearing 5 is riveted soon through single-end lead screw 1 and is fixed on the bearing bush 4, bearing bush 4 pass through 6 pressure equipment of gasket and be in on the single-end lead screw 1, the worm wheel is integrative injection structure with the bearing bush, the utility model discloses an it is inhomogeneous to increase lead screw support piece 2 and be used for protecting single-end lead screw 1 and avoid unsettled part's atress, has realized that the lead screw can artificially increase the problem of fixed step.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a novel axial load-bearing structure of lead screw subassembly which characterized in that: including single-end lead screw (1), single-end lead screw (1) on be equipped with worm wheel (3), bearing bush (4) and bearing (5), the one end of bearing bush (4) with worm wheel (3) fixed connection, the other end with bearing (5) fixed connection, single-end lead screw (1) on with bearing bush (4) on the cooperation department of centre bore be provided with lead screw support piece (2), lead screw support piece (2) with single-end lead screw (1) interference fit, and support bearing bush (4).

2. The axial load-bearing structure of a novel screw assembly as set forth in claim 1, wherein: the main body of the screw rod support piece (2) is of a cylindrical structure, the top end of the screw rod support piece is connected between the single-head screw rod (1) and the worm wheel (3) in a clamping mode through the arrangement of a convex ring body (7), and the assembly is balanced in stress of the suspended part of the single-head screw rod (1).

3. The axial load-bearing structure of a novel screw assembly as set forth in claim 1, wherein: the bearing (5) is fixed on the bearing bush (4) through a single-head screw rod (1) in a riveting mode.

4. The axial load-bearing structure of a novel screw assembly as set forth in claim 1, wherein: the bearing bush (4) is pressed on the single-head screw rod (1) through a gasket (6).

5. The axial load-bearing structure of a novel screw assembly as set forth in claim 1, wherein: the worm wheel (3) and the bearing bush (4) are of an integral injection molding structure.