CN220850623U

CN220850623U - Novel guide rail type guiding structure

Info

Publication number: CN220850623U
Application number: CN202322240078.8U
Authority: CN
Inventors: 张保国
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-04-26
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses a novel guide rail type guide structure, which relates to the technical field of driver guide parts and comprises the following components: the lead screw nut, lead screw nut and lead screw assembly still include: a bearing pin fixedly mounted on the lead screw nut; the screw nut and the bearing pin are assembled in the inner cavity of the shell, and the opposite sides of the inner cavity of the shell are respectively provided with a first guide rail structure and a second guide rail structure; an assembly groove is formed in one surface of the screw rod nut; the first guide rail structure is in sliding fit with the assembly groove; and the second guide rail structure is in sliding fit with the end part of the bearing pin. The utility model utilizes the guide rail structure I and the guide rail structure II to guide, reduces the contact area of the screw nut and the shell, ensures that the screw nut is smooth and free from blocking when sliding, has low sliding noise and stable guide.

Description

Novel guide rail type guiding structure

Technical Field

The utility model relates to the technical field of driver guide parts, in particular to a novel guide rail type guide structure.

Background

As drives have evolved, so too has the structure of sliding guide parts for the interior of the drives. The motor drives the screw rod to rotate so as to enable the sliding block to axially and linearly move, and therefore the related product has a reciprocating motion function. In order to ensure axial movement, the sliding block is required to be limited in the radial direction, so that the screw rod drives the sliding block to only perform axial movement.

The radial limit of the sliding guide part of the traditional driver is the surface limit of the part of the sliding block, and the surface limit has large contact area, so that the sliding resistance is large, thereby causing the problems of unsmooth sliding of the sliding block, large noise and the like.

Aiming at the problems, the novel sliding guide device is innovatively designed on the basis of the original sliding guide.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide a novel guide rail type guide structure, and the guide rail type guide structure is utilized for guiding, so that the contact area between a sliding block and a shell is reduced by guide rail guiding, the sliding block is smooth and free from blocking during sliding, and the sliding noise is low.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a novel guide rail type guide structure, comprising: the lead screw nut, lead screw nut and lead screw assembly still include:

a bearing pin fixedly mounted on the lead screw nut; and

The screw rod nut and the bearing pin are assembled in the inner cavity of the shell, and the opposite sides of the inner cavity of the shell are respectively provided with a first guide rail structure and a second guide rail structure;

An assembly groove is formed in one surface of the screw rod nut;

the first guide rail structure is in sliding clearance fit with the assembly groove;

and the second guide rail structure is in sliding clearance fit with the end part of the bearing pin.

Preferably, the first guide rail structure is arranged to extend along the axial direction of the screw rod, and the first guide rail structure is a convex longitudinal ridge on the shell.

Preferably, the second guide rail structure extends along the axial direction of the screw rod, and the second guide rail structure is a longitudinal groove concaved inwards on the shell.

Preferably, the surfaces, corresponding to the inner wall of the shell, of the periphery of the screw nut are clearance surfaces.

Preferably, the bearing pin is sleeved with a gasket, and the bearing pin is assembled with the bearing through the gasket.

The utility model has the following beneficial effects:

1. The guide rails are positioned on two sides of the screw rod nut, so that the guide stability is ensured, and the product is stable to operate;

2. The screw nut and the shell only need to ensure the sliding clearance at the guide rail, and the rest parts can be kept away, so that the assembly difficulty of the product is reduced;

3. The lead screw nut and the shell only slide at the guide rail, so that the contact area is small, the lead screw nut slides smoothly without blocking, and the sliding noise is small.

Drawings

FIG. 1 is a schematic diagram of the overall cross-sectional elevation of the present utility model.

In the figure: 1. a screw nut; 11. an assembly groove; 2. a screw rod; 3. a bearing pin; 4. a housing; 41. a first guide rail structure; 42. a guide rail structure II; 5. and (3) a bearing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The structure of a novel guide rail type guiding structure provided in this embodiment is shown in fig. 1, and includes: the lead screw nut 1, lead screw nut 1 and lead screw 2 assembly, and lead screw 2 is rotated by motor drive, still includes:

The bearing pin 3 is fixedly arranged on the screw nut 1 along the axial direction of the vertical screw rod 2, a gasket is sleeved on the bearing pin 3, and the bearing pin 3 is assembled with the bearing 5 through the gasket; and

The shell 4 is a driver shell, the screw nut 1 and the bearing pin 3 are assembled in the inner cavity of the shell 4, and the surfaces, corresponding to the inner wall of the shell 4, of the periphery of the screw nut 1 are clearance surfaces;

The opposite sides of the inner cavity of the shell 4 are respectively provided with a first guide rail structure 41 and a second guide rail structure 42;

one surface of the screw nut 1 is provided with an assembly groove 11;

The first guide rail structure 41 is arranged along the axial extension of the screw rod 2, the first guide rail structure 41 is a convex longitudinal ridge on the shell 4, and the first guide rail structure 41 is in sliding clearance fit with the assembly groove 11;

The second guide rail structure 42 is arranged along the axial extension of the screw rod 2, the second guide rail structure 42 is a longitudinal groove concaved in the shell 4, and the second guide rail structure 42 is in sliding clearance fit with the end part of the bearing pin 3;

During operation, the motor drives the screw rod 2 to axially rotate, the screw rod nut 1 is limited in the radial direction through the first guide rail structure 41 and the second guide rail structure 42, the screw rod nut 1 is ensured to axially move, and the first guide rail structure 41 and the second guide rail structure 42 are positioned on two sides of the screw rod nut 1 to conduct stable guiding.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel guide rail type guide structure, comprising: the screw nut (1), screw nut (1) is assembled with lead screw (2), its characterized in that still includes:

a bearing pin (3) fixedly mounted on the lead screw nut (1); and

The screw nut (1) and the bearing pin (3) are assembled in the inner cavity of the housing (4), and the opposite sides of the inner cavity of the housing (4) are respectively provided with a first guide rail structure (41) and a second guide rail structure (42);

an assembly groove (11) is formed in one surface of the screw nut (1);

the first guide rail structure (41) is in sliding clearance fit with the assembly groove (11);

and the second guide rail structure (42) is in sliding clearance fit with the end part of the bearing pin (3).

2. The novel guide rail type guide structure according to claim 1, wherein: the first guide rail structure (41) extends along the axial direction of the screw rod (2), and the first guide rail structure (41) is a convex longitudinal ridge on the shell (4).

3. The novel guide rail type guide structure according to claim 1, wherein: the second guide rail structure (42) extends along the axial direction of the screw rod (2), and the second guide rail structure (42) is a longitudinal groove which is concave on the shell (4).

4. The novel guide rail type guide structure according to claim 1, wherein: the surfaces, corresponding to the inner wall of the shell (4), of the periphery of the screw nut (1) are clearance surfaces.

5. The novel guide rail type guide structure according to claim 1, wherein: the bearing pin (3) is sleeved with a gasket, and the bearing pin (3) is assembled with the bearing (5) through the gasket.