CN212643304U

CN212643304U - Rotating shaft mounting structure

Info

Publication number: CN212643304U
Application number: CN202021432361.0U
Authority: CN
Inventors: 顾书凤
Original assignee: Kunshan Pat Metal Products Co ltd
Current assignee: Kunshan Pat Metal Products Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-03-02
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a rotation axis mounting structure, including connector A, connector B, the rotation axis, fastening screw A and fastening screw B, connector A has two linking arm A, connector B has linking arm B, linking arm B arranges in between two linking arm A, the rotation axis runs through in the shaft hole of linking arm A and linking arm B, blind hole A and blind hole B of the axle hole intercommunication with linking arm B are seted up in linking arm B's the footpath, the rotation axis seted up with blind hole A, the coaxial through-hole with the footpath of blind hole B, blind hole A has first internal thread, blind hole B has the second internal thread opposite with first internal thread line opposite direction, fastening screw A and blind hole A screw-thread fit, and fastening screw A's the inner is deep into in the through-hole, fastening screw B and blind hole B screw-thread fit, and fastening screw B's the inner is deep into the. Above-mentioned rotation axis mounting structure can avoid fastening screw A and fastening screw B not hard up simultaneously, helps improving the stability that rotation axis and linking arm B are connected.

Description

Rotating shaft mounting structure

Technical Field

The utility model relates to a machine parts technical field, concretely relates to rotation axis mounting structure.

Background

In the prior art, two parts that need to be folded are generally articulated through the rotation axis, and rotation axis and folding portion rotatable coupling's fixed mode is more, if set up spacing axle sleeve at the both ends of axle, wear to establish pin etc. at the both ends of axle, these modes are as follows not enough:

1. the length of axle is greater than the length of folding portion all the time, and to some precision parts, axial space is limited, and axle sleeve, pin etc. can occupy axial space, are unfavorable for overall arrangement and installation.

2. The shaft sleeve and the pin are exposed outside, and the attractiveness is poor.

3. The locking shaft and the folding part are easy to loosen and have poor stability.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a rotation axis mounting structure that does not occupy axial space and stability is high.

The utility model provides a pair of rotating shaft mounting structure, including connector A, connector B and rotation axis, connector A includes body A and two parallel arrangement's linking arm A that sets firmly on body A, connector B includes body B and the linking arm B that sets firmly on body B, linking arm B arranges in between two linking arm A, linking arm A and linking arm B have coaxial shaft hole, the rotation axis runs through the shaft hole of linking arm A and linking arm B; the blind hole structure is characterized by further comprising a fastening screw A and a fastening screw B, the radial direction of the connecting arm B is provided with a blind hole A and a blind hole B which are communicated with the shaft hole of the connecting arm B, the radial direction of the rotating shaft is provided with a through hole, the through hole is coaxial with the blind hole A and the blind hole B and has a first internal thread, the blind hole B is provided with a second internal thread opposite to the direction of the thread line of the first internal thread, the fastening screw A is in threaded fit connection with the first internal thread, the inner end of the fastening screw A goes deep into the through hole, the fastening screw B is in threaded fit connection with the second internal thread, and the inner end of the fastening screw B goes deep.

Based on the above scheme, the utility model provides a rotation axis mounting structure, linking arm B locates between two linking arms A, rotation axis and linking arm B fixed connection, rotation axis and linking arm A rotatable coupling, linking arm B has prescribed a limit to linking arm A's position, linking arm B and rotation axis pass through fastening screw A and fastening screw B to be fixed, because fastening screw A's thread line and fastening screw B's thread line opposite direction, after linking arm B and rotation axis receive the vibration, if fastening screw A produces the counter-clockwise turning effort, fastening screw B produces the effort of clockwise turning, fastening screw A and linking arm B receive the effort of turning opposite, therefore both hold back each other, avoid fastening screw A and fastening screw B not hard up simultaneously, help improving the stability that rotation axis and linking arm B are connected, this rotation axis mounting structure does not occupy the axial installation space, the structure is compact.

As an improved technical scheme, the inner end face of the fastening screw A is abutted against the inner end face of the fastening screw B.

As an improved technical scheme, an inner hole is formed in the axial direction of the end face of the inner end of the fastening screw A, a convex column is arranged in the axial direction of the end face of the inner end of the fastening screw B, and the convex column is in interference fit with the inner hole.

As an improved technical scheme, an inner threaded hole is formed in the axial direction of the end face of the inner end of the fastening screw A, a stud is arranged in the axial direction of the end face of the inner end of the fastening screw B, and the stud is in threaded fit with the inner threaded hole.

As an improved technical scheme, a platform is arranged at the position of the connecting arm B where the blind hole A and the blind hole B are formed.

As an improved technical scheme, wrench holes are formed in the axial direction of the end faces of the outer ends of the fastening screw A and the fastening screw B.

Additional features and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic view illustrating an angle of a rotating shaft mounting structure according to an embodiment;

FIG. 2 is a schematic view of a rotating shaft mounting structure at another angle according to an embodiment;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is an internal schematic view of a rotating shaft mounting structure according to a second embodiment;

fig. 6 is an internal schematic view of a rotating shaft mounting structure according to a third embodiment;

FIG. 7 is a perspective view of a fastening screw A and a fastening screw B of FIG. 6;

reference numerals: the rotary table comprises a rotary shaft 10, a body A21, a connecting arm A22, a body B31, a connecting arm B32, a platform 33, a fastening screw A41, an inner hole 411, a fastening screw B42, a convex column 421 and a wrench hole 43.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, numerous specific details are set forth, however, it can be appreciated that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Example one

As shown in fig. 1 to 4, the present embodiment discloses a rotating shaft mounting structure, which includes a connecting body a, a connecting body B, a rotating shaft 10, a fastening screw a41, and a fastening screw B42.

The connecting body A comprises a body A21 and two connecting arms A22 which are fixedly arranged on the body A21 in parallel, the connecting body B comprises a body B31 and a connecting arm B32 fixedly arranged on the body B31, the connecting arm B32 is arranged between the two connecting arms A22, the connecting arm A22 and the connecting arm B32 are provided with coaxial shaft holes, and the rotating shaft 10 penetrates through the shaft holes of the connecting arm A22 and the connecting arm B32.

In this embodiment, the specific structures of the body a21 and the body B31 may be determined according to actual products, such as a rod-shaped body, a plate-shaped body, and the like, and are not described in detail herein.

The blind hole A and the blind hole B that all communicate with the shaft hole of linking arm B32 are seted up to the footpath of linking arm B32, the through-hole has been seted up to the footpath of rotation axis 10, through-hole and blind hole A, blind hole B are coaxial with the footpath, blind hole A has first internal thread, blind hole B has the second internal thread opposite with first internal thread helix direction, fastening screw A41 is connected with first internal thread screw-thread fit, and the inner of fastening screw A41 is deep in the through-hole, fastening screw B42 is connected with second internal thread screw-thread fit, and the inner of fastening screw B42 is deep in the through-hole.

In this embodiment, the inner end surface of the fastening screw a41 is in contact with the inner end surface of the fastening screw B42, and preferably, the inner end surface of the fastening screw a41 and the inner end surface of the fastening screw B42 are both friction surfaces, so that the locking degree of the fastening screw a41 and the fastening screw B42 can be further improved.

In the present embodiment, the connecting arm B32 has a platform 33 at the position of the blind holes a and B, and the platform 33 is convenient for installing the fastening screw a41 and the fastening screw B42.

In the present embodiment, the fastening screw a41 and the fastening screw B42 have wrench holes 43 formed in the axial direction of the outer end faces thereof, and the wrench holes 43 are preferably 6 regular hexagonal holes.

The utility model provides a rotating shaft mounting structure, fastening screw A's thread is opposite with fastening screw B's thread direction, and after linking arm B and rotating shaft received the vibration, fastening screw A and fastening screw B received rotatory effort to be opposite, and both are held back each other, have avoided fastening screw A and fastening screw B not hard up simultaneously, help improving the stability that rotating shaft and linking arm B are connected; meanwhile, the built-in fastening screw A41 and the built-in fastening screw B42 are adopted, so that the axial length of the rotating shaft mounting structure can be reduced, and the mounting space is saved.

Example two

As shown in fig. 5, the present embodiment is further optimized based on the first embodiment, and the optimization is as follows:

an inner hole 411 is formed in the axial direction of the end face of the inner end of the fastening screw A41, a convex column 421 is arranged in the axial direction of the end face of the inner end of the fastening screw B42, and the convex column 421 is in interference fit with the inner hole 411.

In this embodiment, the fastening screw a41 and the fastening screw B42 are in interference fit with the inner hole 411 through the protruding pillar 421, so that the connection stability of the fastening screw a41 and the fastening screw B42 can be improved, and the stability of the rotating shaft mounting structure is further improved.

EXAMPLE III

As shown in fig. 6 and fig. 7, the present embodiment is further optimized based on the first embodiment, and the optimization is as follows:

an inner threaded hole 412 is formed in the axial direction of the end face of the inner end of the fastening screw A41, a stud 422 is arranged in the axial direction of the end face of the inner end of the fastening screw B42, and the stud 422 is in threaded fit with the inner threaded hole 412.

In this embodiment, the fastening screw a41 and the fastening screw B42 are in threaded fit with the inner threaded hole 412 through the stud 422, so that the connection stability of the fastening screw a41 and the fastening screw B42 can be improved, and the stability of the rotating shaft mounting structure can be further improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a rotation axis mounting structure, includes connector A, connector B and rotation axis (10), connector A includes body A (21) and sets firmly two parallel arrangement's on body A (21) linking arm A (22), connector B includes body B (31) and sets firmly linking arm B (32) on body B (31), linking arm B (32) are arranged in between two linking arm A (22), linking arm A (22) have coaxial shaft hole with linking arm B (32), rotation axis (10) run through in the shaft hole of linking arm A (22) and linking arm B (32), its characterized in that:

still include fastening screw A (41) and fastening screw B (42), the blind hole A and the blind hole B that all communicate with the shaft hole of linking arm B (32) are seted up to the footpath of linking arm B (32), the through-hole has been seted up to the footpath of rotation axis (10), the through-hole is coaxial with blind hole A, blind hole B with first internal thread, blind hole A has the second internal thread opposite with first internal thread line direction, fastening screw A (41) are connected with first internal thread screw-thread fit, and the inner of fastening screw A (41) gos deep into in the through-hole, fastening screw B (42) are connected with second internal thread screw-thread fit, and the inner of fastening screw B (42) gos deep into in the through-hole.

2. A rotary shaft mounting structure according to claim 1, wherein: the inner end face of the fastening screw A (41) is abutted against the inner end face of the fastening screw B (42).

3. A rotary shaft mounting structure according to claim 1, wherein: an inner hole (411) is formed in the axial direction of the inner end face of the fastening screw A (41), a convex column (421) is arranged in the axial direction of the inner end face of the fastening screw B (42), and the convex column (421) is in interference fit with the inner hole (411).

4. A rotary shaft mounting structure according to claim 1, wherein: an inner threaded hole (412) is formed in the axial direction of the end face of the inner end of the fastening screw A (41), a stud (422) is arranged in the axial direction of the end face of the inner end of the fastening screw B (42), and the stud (422) is in threaded fit with the inner threaded hole (412).

5. A rotary shaft mounting structure according to claim 1, wherein: and a platform (33) is arranged at the position of the connecting arm B (32) where the blind hole A and the blind hole B are formed.

6. A rotary shaft mounting structure according to claim 1, wherein: and wrench holes (43) are formed in the axial direction of the outer end faces of the fastening screw A (41) and the fastening screw B (42).