CN213808452U

CN213808452U - Damping rotating shaft

Info

Publication number: CN213808452U
Application number: CN202022659658.7U
Authority: CN
Inventors: 郭宏伟; 张秀金
Original assignee: Dongguan Honglian Electronics Co ltd
Current assignee: Dongguan Honglian Electronics Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-27
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a damping rotating shaft, which comprises a fixed shaft, wherein a plurality of groups of friction components are sleeved on the fixed shaft in a laminating way; the friction assembly comprises a connecting sheet and a damping gasket which are sequentially arranged from left to right, and a first bayonet and a second bayonet are arranged on the damping gasket at intervals; the connecting sheet is provided with a first bulge and a second bulge which are opposite in direction; the second bulge of the connecting piece of one friction assembly is clamped in the first bayonet of the damping gasket of the friction assembly, and the first bulge of the connecting piece of the friction assembly is clamped in the second bayonet of the damping gasket of the other adjacent friction assembly; a spacer is arranged between two adjacent friction components and can be clamped on the fixed shaft in a non-rotatable manner. The utility model discloses a damping pivot, current damping pivot relatively, its stability of damping performance obtains very big improvement.

Description

Damping rotating shaft

Technical Field

The utility model relates to a pivot field especially relates to a damping pivot.

Background

The existing damping rotating shaft is generally provided with a plurality of damping gaskets on a fixed shaft, and then different damping effects are realized by applying different pressures to the damping gaskets through bolts. In the prior art, once slipping occurs between two adjacent damping gaskets, the damping force of the whole damping rotating shaft is easily reduced sharply, so that the damping force is greatly reduced. Therefore, it is desirable to design a damping spindle with greater stability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a damping pivot to improve the stability of damping pivot.

To achieve the purpose, the utility model adopts the following technical proposal:

a damping rotating shaft comprises a fixed shaft, wherein a plurality of groups of friction components are sleeved on the fixed shaft in a laminating manner;

the friction assembly comprises a connecting sheet and a damping gasket which are sequentially stacked from left to right, and a first bayonet and a second bayonet are arranged on the damping gasket at intervals; the connecting piece is provided with a first bulge and a second bulge which are opposite in direction;

the second bulge of the connecting piece of one friction assembly is clamped in the first bayonet of the damping gasket of the friction assembly, and the first bulge of the connecting piece of the friction assembly is clamped in the second bayonet of the damping gasket of the other adjacent friction assembly;

and a spacer is arranged between every two adjacent friction components and is non-rotatably clamped on the fixed shaft.

Optionally, the fixed shaft comprises a fixed part, a first shaft section and a threaded connection section which are arranged from right to left in sequence; the friction components are overlapped and sleeved on the first shaft section, and the friction component closest to the fixing part is abutted against the fixing part;

and nuts for applying pressure to a plurality of groups of friction components are arranged on the threaded connection section.

Optionally, an elastic component sleeved on the damping rotating shaft is arranged between the nut and the friction component.

Optionally, the elastic assembly includes a flat pad and two disc springs, the flat pad and the two disc springs are both sleeved on the first shaft section, and the nut, the two disc springs, the flat pad and the plurality of friction assemblies are sequentially disposed on the fixed shaft in a left-to-right direction.

Optionally, the first and second bayonets are symmetrical about a central axis of the fixed shaft.

Optionally, the width of the first protrusion is consistent with the width of the second bayonet, and the width of the second protrusion is consistent with the width of the first bayonet.

Optionally, a first plane is disposed on the first shaft segment, and the first plane is parallel to the central axis of the first shaft segment; the spacer is provided with a positioning hole matching the cross section of the first shaft section.

Optionally, the fixed portion is provided with a platform for abutment with the friction assembly.

Optionally, the two opposite sides of the connecting sheet are provided with mounting surfaces, and the two mounting surfaces are parallel to each other.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a damping pivot is through the cover being equipped with a plurality of friction pack of group on the fixed axle, and is connected with adjacent friction pack through the connection piece from the area between the friction pack to be provided with between two adjacent friction pack and not rotationally the clutch in fixed epaxial spacer. In the utility model, after the nut applies pressure, the friction components are abutted against the spacers, when one group of friction components rotates under stress, the plurality of groups of friction components synchronously rotate, and each friction component moves relative to the spacers to generate friction force; at the moment, even if a slip phenomenon exists between one friction assembly and one spacer, the friction between other friction assemblies and the spacer can not be influenced, the damping rotating shaft can still keep good damping performance, and the stability of the damping performance of the damping rotating shaft is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

Fig. 1 is an exploded schematic view of a damping rotating shaft according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a damping rotating shaft according to an embodiment of the present invention;

fig. 3 is a schematic front view of a damping rotating shaft according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the damping spindle of FIG. 3 taken along section C-C;

fig. 5 is a schematic structural diagram of a damping shim according to an embodiment of the present invention.

Illustration of the drawings: 1. a fixed shaft; 11. a fixed part; 111. a platform; 12. a first shaft section; 121. a first plane; 13. a threaded connection section; 2. a friction assembly; 21. connecting sheets; 211. a first protrusion; 212. a second protrusion; 213. a mounting surface; 22. a damping shim; 221. a first bayonet; 222. a second bayonet; 23. a spacer; 3. a nut; 4. an elastic component; 41. flattening the cushion; 42. a disc spring.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, 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. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1-4, an embodiment of the present invention provides a damping rotating shaft, which includes a fixing shaft 1, and a plurality of sets of friction components 2 are sleeved on the fixing shaft 1 in a stacked manner; the friction assembly 2 comprises a connecting piece 21 and a damping gasket 22 which are sequentially arranged from left to right, wherein a first bayonet 221 and a second bayonet 222 are arranged on the damping gasket 22 at intervals; the connecting piece 21 is provided with a first protrusion 211 and a second protrusion 212 which are oppositely oriented.

In the damping rotating shaft, the second protrusion 212 of the connecting plate 21 of one friction assembly 2 is clamped in the first bayonet 221 of the damping washer 22 of the friction assembly 2, and the first protrusion 211 of the connecting plate 21 of the friction assembly 2 is clamped in the second bayonet 222 of the damping washer 22 of another adjacent friction assembly 2. A spacer 23 is arranged between two adjacent friction components 2, and the spacer 23 is clamped on the fixed shaft 1 in a non-rotatable manner.

Specifically, since the spacer 23 is non-rotatably fitted on the fixed shaft 1, when the shaft rotates, the coupling piece 21 rubs against the spacer 23 located above it, and the damping washer 22 rubs against the spacer 23 located below it. Because the second protrusion 212 of the connecting plate 21 of the friction assembly 2 is clamped in the first clamping opening 221 of the damping washer 22 of the friction assembly 2, and the first protrusion 211 of the connecting plate 21 of the friction assembly 2 is clamped in the second clamping opening 222 of the damping washer 22 of another adjacent friction assembly 2, several groups of friction assemblies 2 are all rubbed with the spacer 23. In this embodiment, the adjacent two friction assemblies 2 are unlikely to slip, and secondly, even if there is a slip between one friction assembly 2 and one spacer, the friction between the other friction assembly 2 and the spacer 23 is not affected, that is, the friction force of the damping spindle is unlikely to decrease in a cliff manner, and the stability of the damping performance is greatly improved. It is worth mentioning that the number of friction assemblies 2 should be specifically set according to the magnitude of the required frictional damping force.

In this embodiment, the fixed shaft 1 includes a fixed portion 11, a first shaft section 12, and a threaded connection section 13, which are sequentially arranged from right to left. The friction components 2 are overlapped and sleeved on the first shaft section 12, the friction component 2 closest to the fixing part 11 is abutted against the fixing part 11, and the threaded connection section 13 is provided with a nut 3 for applying pressure to the friction components 2. It should be noted that the structure consisting of several sets of friction elements 2, one end of which is against the fixed part, is pressed by the nut 3 against the other end of the structure. The greater the pressure exerted by the nut 3, the greater the friction between the friction assembly 2 and the spacer; likewise, the less pressure the nut 3 exerts, the less friction between the friction assembly 2 and the spacer.

It should be noted that, in this embodiment, the first plane 121 is disposed on each of two opposite sides of the first shaft segment 12, and the first spacer 23 is provided with a waist-shaped hole matching with the first shaft segment 12; the first spacer 23, which is fitted over the first shaft section 12, is not rotatable, but the friction element 2 is rotatable about the first shaft section 12.

In this embodiment, in order to improve the pressure stability of the nut 3, an elastic component 4 sleeved on the damping rotating shaft is arranged between the nut 3 and the friction component 2. The elastic component 4 comprises a flat pad 41 and two disc springs 42, the flat pad 41 and the two disc springs 42 are all sleeved on the first shaft section 12, and the nut 3, the two disc springs 42, the flat pad 41 and the friction components 2 are sequentially arranged on the fixed shaft 1 from left to right.

Particularly, when the damping shim 22 is disposed on the fixing shaft 1, the first bayonet 221 and the second bayonet 222 are symmetrical about the central axis of the fixing shaft 1, so that the front or the back of the damping shim 22 can be mounted on the fixing shaft 1, and the mounting worker does not need to recognize the front or the back of the damping shim, thereby improving the mounting efficiency of the worker.

The width of the first protrusion 211 is consistent with that of the second bayonet 222, and the first protrusion 211 is just clamped in the second bayonet 222; the width of the second protrusion 212 is the same as the width of the first bayonet 221, and the second protrusion 212 is just clipped in the first bayonet 221.

The fixed part 11 is provided with a platform 111 for abutting the friction assembly 2. The connecting piece 21 is provided with mounting surfaces 213 on opposite sides, and the mounting surfaces 213 are parallel to each other. It should be noted that one end of the fixing portion 11 is fixedly connected with a first fixing member, and the second fixing member is fixedly connected to the friction component farthest from the fixing portion 11. In particular, the second fixing member may be provided with a looping matching the connecting piece 21, when the looping of the second fixing member is looped over the connecting piece 21, both mounting surfaces of the connecting piece 21 farthest from the fixing portion 11 are abutted against the side walls of the looping, so that the second fixing member is fixedly sleeved on the connecting piece 21 farthest from the fixing portion 11.

The utility model discloses a damping pivot is equipped with a plurality of friction pack 2 of group through from left to right range upon range of cover on fixed axle 1, and is connected with adjacent friction pack through the connection piece 21 from the area between the friction pack 2 to be provided with between two adjacent friction pack 2 and not rotationally the clutch in fixed axle 1 spacer. The utility model discloses a damping pivot has eliminated among the prior art because the problem of the sharp decline of damping force of the whole damping pivot that leads to skids between two adjacent damping gasket 22, and the damping force of the damping pivot of keeping that can be fine has improved the damping stability of damping pivot.

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 technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The damping rotating shaft is characterized by comprising a fixed shaft (1), wherein a plurality of groups of friction components (2) are sleeved on the fixed shaft (1) in a laminating manner;

the friction assembly (2) comprises a connecting piece (21) and a damping gasket (22) which are arranged in a stacked mode, wherein a first bayonet (221) and a second bayonet (222) are arranged on the damping gasket (22) at intervals; a first protrusion (211) and a second protrusion (212) with opposite directions are arranged on the connecting piece (21);

the second bulge (212) of the connecting piece (21) of one friction assembly (2) is clamped in the first bayonet (221) of the damping gasket (22) of the friction assembly (2), and the first bulge (211) of the connecting piece (21) of the friction assembly (2) is clamped in the second bayonet (222) of the damping gasket (22) of the adjacent friction assembly (2);

a spacer (23) is arranged between every two adjacent friction components (2), and the spacer (23) is clamped on the fixed shaft (1) in a non-rotatable manner.

2. The damping spindle according to claim 1, characterized in that the stationary shaft (1) comprises a stationary part (11), a first shaft section (12) and a threaded connection section (13) arranged in sequence from right to left; the friction components (2) of a plurality of groups are overlapped and sleeved on the first shaft section (12), and the friction component (2) closest to the fixing part (11) is abutted against the fixing part (11);

and nuts (3) for applying pressure to a plurality of groups of friction components (2) are arranged on the threaded connection sections (13).

3. The damping spindle according to claim 2, characterized in that an elastic component (4) sleeved on the first shaft section (12) is arranged between the nut (3) and the friction component (2).

4. The damping spindle according to claim 3, characterized in that the elastic component (4) comprises a flat pad (41) and two disc springs (42), the flat pad (41) and the two disc springs (42) are both sleeved on the first shaft section (12), and the nut (3), the two disc springs (42), the flat pad (41) and the friction components (2) are sequentially arranged on the fixed shaft (1) from left to right.

5. The damping spindle of claim 1, wherein the first bayonet (221) and the second bayonet (222) are symmetrical about a central axis of the damping shim (22).

6. The damped spindle of claim 1 wherein the width of the first protrusion (211) is consistent with the width of the second bayonet (222) and the width of the second protrusion (212) is consistent with the width of the first bayonet (221).

7. Damping spindle according to claim 2, characterized in that a first plane (121) is arranged on the first shaft section (12), which first plane (121) is parallel to the centre axis of the first shaft section (12); the spacer (23) is provided with a positioning hole matching the cross section of the first shaft section (12).

8. Damped swivel according to claim 2, wherein the fixing part (11) is provided with a platform (111) for abutment with the friction assembly (2).

9. Damping spindle according to claim 1, characterized in that the connecting piece (21) is provided with mounting surfaces (213) on opposite sides.