CN220791819U

CN220791819U - Rotating shaft damping mechanism and rotating device

Info

Publication number: CN220791819U
Application number: CN202322812731.3U
Authority: CN
Inventors: 颜巍巍; 王五星
Original assignee: Shenzhen Antmed Co ltd
Current assignee: Shenzhen Antmed Co ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-04-16
Anticipated expiration: 2033-10-18

Abstract

The utility model discloses a rotating shaft damping mechanism and a rotating device, wherein the rotating shaft damping mechanism comprises a rotating seat, a rotating shaft, damping parts and locking devices, the rotating shaft is rotationally connected to the rotating seat, the damping parts are arranged between the rotating seat and the rotating shaft and are abutted to the peripheral side of the rotating shaft, the locking devices are abutted to the outer sides of the damping parts, at least two locking devices are arranged at intervals, so that damping friction force lost by the damping parts during operation of the rotating shaft is supplemented, and the rotating shaft can be ensured to be fixed on the rotating seat.

Description

Rotating shaft damping mechanism and rotating device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a rotating shaft damping structure.

Background

The rotation shaft is generally provided with two bearings and a clamp spring so as to realize the function of axial limit of the rotation shaft, and to realize the function of rotation with damping, a damping sheet is usually arranged between the two bearings, and is tightly pressed against the rotation shaft by locking a base screw on a rotation seat, so that radial resistance is generated when the rotation shaft rotates, and meanwhile, the damping friction force can be adjusted by adjusting the locking depth of the base screw, however, as the damping sheet is in friction loss in the working process, the damping friction force on the rotation shaft is smaller and smaller, so that the rotation shaft cannot be fixed on the rotation seat when the rotation shaft rotates, and the rotation performance of the rotation shaft is reduced.

Disclosure of utility model

The main purpose of the utility model is to provide a rotating shaft damping mechanism, which aims to supplement damping friction force lost by a rotating shaft due to abrasion of damping parts during operation, so that the rotating shaft can be fixed on a rotating seat, and the rotating performance of the rotating shaft is ensured.

In order to achieve the above object, the present utility model provides a rotary shaft damping mechanism, comprising:

A rotating seat;

the rotating shaft at least partially penetrates through the rotating seat and is rotationally connected with the rotating seat;

the damping component is arranged between the rotating seat and the rotating shaft and is abutted against the periphery side of the rotating shaft; and

The locking device is arranged on the rotating seat in a penetrating mode and is abutted to the outer side of the damping component, the locking device can move relative to the rotating seat to adjust locking force of the damping component, and the locking device is provided with at least two locking devices which are arranged at intervals.

Preferably, the locking device is in threaded engagement with the rotating seat.

Preferably, at least one of said locking means projects partially outside said rotating seat.

Preferably, the damping member includes:

An inner damper that abuts on a peripheral side of the rotating shaft; and

The outer damping fin is arranged on the outer side of the inner damping fin, and one side, away from the inner damping fin, of the outer damping fin is abutted with the locking device.

Preferably, the inner damping sheet is a polyoxymethylene resin body;

And/or, the outer damping fin is a rigid body.

Preferably, at least two damping parts are arranged, the at least two damping parts are distributed at intervals along the circumferential direction of the rotating shaft, and each damping part is correspondingly provided with at least one locking device.

Preferably, at least two of said damping members are distributed in an annular array along the axis of said rotary shaft.

Preferably, the locking direction of the locking device is perpendicular to the axial direction of the rotating shaft.

Preferably, the rotating shaft damping mechanism further comprises two bearings, the two bearings are sleeved on the rotating shaft, the two bearings are respectively arranged on two sides of the damping component along the axial direction of the rotating shaft, and the outer sides of the bearings are in contact with the rotating seat.

The utility model also provides a rotating device which comprises a rotating mechanism and the rotating shaft damping mechanism, wherein the rotating shaft damping mechanism is arranged on the rotating mechanism.

According to the technical scheme, the friction damping is supplemented on the original basis by additionally arranging at least one locking device on the rotating shaft, so that the friction damping can be ensured to be enough to fix the rotating shaft on the rotating seat when the rotating shaft rotates, even if the friction force of the damping component is reduced along with the abrasion of the damping component, the locking force of the locking device on the damping component can be increased by adjusting the locking device, and further the friction force of the damping component is supplemented, so that the rotating shaft can be fully fixed on the rotating seat when rotating, and the rotating performance of the rotating shaft is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of an embodiment of a damping mechanism for a rotary shaft according to the present utility model;

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				100	Rotating shaft damping mechanism	31	First rotating seat
10	Damping component	32	Second rotating seat
				11	External damping fin	321	Threaded hole
12	Internal damping fin	40	Rotating shaft
				20	Locking device	50	Bearing
21	Knob	60	Sealing ring
				30	Rotary seat

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present utility model proposes a rotation shaft damping mechanism 100, which aims to supplement friction damping on the original basis by adding at least one locking device 20 on a rotation shaft 40, so as to ensure that the friction damping can be enough to fix the rotation shaft 40 on a rotation seat 30 when the rotation shaft 40 rotates, so as to ensure the rotation performance of the rotation shaft 40.

Referring to fig. 1 in combination, in the embodiment of the utility model, the rotary shaft damping mechanism 100 includes a rotary seat 30, a rotary shaft 40, a damping member 10 and a locking device 20, wherein the rotary shaft 40 is at least partially disposed through the rotary seat 30 and is rotatably connected to the rotary seat 30, the damping member 10 is disposed between the rotary seat 30 and the rotary shaft 40 and abuts against the circumferential side of the rotary shaft 40, the locking device 20 is disposed through the rotary seat 30 and abuts against the outer side of the damping member 10, the locking device 20 can move relative to the rotary seat 30, at least two locking devices 20 are disposed on the locking device 20, and at least two locking devices 20 are disposed at intervals.

It can be appreciated that in the technical solution of the present utility model, by adding at least one locking device 20 to the rotating shaft 40, friction damping is supplemented on the original basis, so that it is ensured that the friction damping can be sufficient to fix the rotating shaft 40 to the rotating seat 30 when the rotating shaft 40 rotates, even if the friction force of the damping component 10 decreases due to abrasion of the damping component 10, the locking force of the locking device 20 to the damping component 10 can be increased by adjusting the locking device 20, so as to supplement the friction force of the damping component 10, and the rotating shaft 40 can be sufficiently fixed to the rotating seat 30 when rotating, so as to ensure the rotation performance of the rotating shaft 40.

In some embodiments, the rotating base 30 includes a first rotating base 31 and a second rotating base 32, where the first rotating base 31 is disposed at an end of the rotating shaft 40, the second rotating base 32 is sleeved on an outer side of a portion of the rotating shaft 40 and a portion of the first rotating base 31, and the second rotating base 32 is connected to the first rotating base 31 by a screw, a buckle, or the like.

In some embodiments, in order to ensure tightness between the rotating seat 30 and the rotating shaft 40, a sealing ring 60 may be sleeved outside the rotating seat 30 and the rotating shaft 40.

In some embodiments, the cooperation of the locking device 20 and the rotating seat 30 is similar to the structure of a "wine bottle cork", the wine bottle mouth is an opening on the rotating seat 30, and the locking device 20 is a "cork", at this time, the locking device 20 can be further moved into the rotating seat 30 by knocking the locking device 20, so that the pressure of the locking device 20 on the damping component 10 is greater, and the damping friction force is increased accordingly, so that the supplement of the damping friction force of the rotating shaft is realized.

In other embodiments, the locking device 20 is provided with a limiting structure, the rotating seat 30 is provided with a structure matched with the limiting structure, and the locking device 20 is limited at different positions of the rotating seat 30, so that the pressure of the damping component 10 by the locking device 20 can be adjusted, and the damping friction force of the rotating shaft can be supplemented.

In yet another embodiment, the locking device 20 may be a screw, a bolt, or the like that is screwed with the rotating base 30.

Further, referring to fig. 1 in combination, in one embodiment, the locking device 20 is threadably engaged with the swivel mount 30.

This arrangement makes the engagement of the locking device 20 on the rotatable seat 30 more convenient and easy, and the feature of simple threads is also easier to form on the locking device 20 and rotatable seat 30.

In this embodiment, the rotating seat is provided with a threaded hole 321 which is matched with the locking device 20.

In some embodiments, in order that the locking device 20 does not occupy too much space outside the rotating seat, the locking device 20 does not extend perpendicular to the axis of the rotating shaft 40, but forms an angle, and the locking device 20 is obliquely inserted into the threaded hole 321 of the rotating seat 30.

Further, referring to fig. 1 in combination, in one embodiment, at least one locking device 20 projects partially outside of the swivel base 30.

This arrangement ensures that at least one of the plurality of locking devices 20 is a male rotating seat 30, such that the locking device 20 of the male rotating seat 30 can be easily adjusted.

In some embodiments, to facilitate manual adjustment of the locking depth of the locking device 20, the locking device 20 of the protruding rotating base 30 is provided with a knob 21, and the knob 21 is fixedly connected to the top end of the locking device 20, so that manual adjustment of the locking depth of the locking device 20 is achieved without tools.

In other embodiments, to facilitate adjustment of damping friction in all directions on the rotatable shaft 40, all of the locking devices 20 are raised outside of the rotatable seat 30 so that all of the locking devices 20 can be adjusted outside of the rotatable seat 30.

Further, referring to fig. 1 in combination, in an embodiment, the damping part 10 includes an inner damping fin 12 and an outer damping fin 11, the inner damping fin 12 abuts against the circumferential side of the rotating shaft 40, the outer damping fin 11 is disposed on the outer side of the inner damping fin 12, and a side of the outer damping fin 11 away from the inner damping fin 12 abuts against the locking device 20.

The damping device is arranged in such a way that the part of the damping part 10 contacting the rotating shaft 40 is separated from the part contacting the locking device 20, so that the pressure of the locking device 20 to the damping part 10 can not directly influence the part of the damping part 10 contacting the rotating shaft 40, and the structure of the damping part 10 is prevented from being damaged due to overlarge pressure of the locking device 20, thereby influencing the rotating shaft 40.

In some embodiments, the shape of the damping fin may be circular, rectangular, or triangular, and the contact area between the damping fin and the rotating shaft 40 may be enough to satisfy the damping friction force of the rotating shaft 40 fixed on the rotating seat 30, and the shape of the damping fin is not limited herein.

In other embodiments, to facilitate placement of the damping shim, the damping shim is sleeved on the rotating shaft 40 in a ring similar to a bearing, so that the locking device 20 can have more positions to abut the damping member 10.

Further, referring to fig. 1 in combination, in one embodiment, the inner damping sheet 12 is a polyoxymethylene resin body and/or the outer damping sheet 11 is a rigid body.

The inner damping fin 12 is made of polyoxymethylene resin, has the characteristics of wear resistance, high temperature resistance and large friction coefficient, and can ensure that the inner damping fin 12 can provide enough damping friction force and reduce the wear speed so as to prolong the service life of the damping part 10; the outer damping plate 11 is a rigid body, and resists deformation of the damping member 10 due to compression of the locking member, thereby protecting the inner damping plate 12 and the rotation shaft 40 from damage of the locking device 20.

In some embodiments, the outer damping shim 11 is made of stainless steel, which has good rigidity, and can transmit the pressure of the locking device 20 to the inner damping shim 12 well, and at the same time, reduce deformation damage of the inner damping shim 12 and the rotating shaft 40 by the tightening device.

Further, referring to fig. 1 in combination, in one embodiment, at least two damping members 10 are provided, and at least two damping members 10 are spaced apart along the circumferential direction of the rotation shaft 40, and each damping member 10 is correspondingly provided with at least one locking device 20.

By the arrangement, the condition that a certain damping part 10 is not provided with the locking device 20 can be avoided, all damping parts 10 can be compressed by the locking device 20, damping friction force is provided for the rotating shaft 40, at least two damping parts 10 are circumferentially distributed at intervals, so that the damping parts 10 cannot be overlapped, the damping friction force is mutually supplemented by the damping parts 10, and the rotating shaft 40 is stabilized.

In some embodiments, to reduce the complexity of the mechanism, the rotary shaft damping mechanism 100 is provided with only two damping members 10, where the damping members 10 are the same as the locking devices 20 in number, i.e., the damping members 10 are in one-to-one correspondence with the locking devices 20, and there is only one locking device 20 on each damping member 10.

Further, referring to fig. 1 in combination, in one embodiment, at least two damping members 10 are distributed in an annular array along the axis of the rotary shaft 40.

By such arrangement, the damping friction forces generated by the damping members 10 can be balanced in the circumferential direction of the rotating shaft 40, so that the abnormal rotation of the rotating shaft 40 caused by the unbalanced force phenomenon of the damping friction forces of the parts can be avoided.

In some embodiments, two damping members 10 are disposed axisymmetrically along the axis of the rotation shaft 40, and three damping members 10 are disposed at an included angle of 120 ° so long as the damping friction forces generated by the damping members 10 are circumferentially balanced.

Further, referring to fig. 1 in combination, in one embodiment, the locking direction of the locking device 20 is perpendicular to the axial direction of the rotating shaft 40.

This arrangement allows the locking device 20 to reach the maximum pressure on the damping member 10 with the shortest locking depth.

Further, referring to fig. 1 in combination, in an embodiment, the shaft damping mechanism further includes two bearings, the two bearings are sleeved on the rotating shaft 40, the two bearings are respectively disposed on two sides of the damping member 10 along the axial direction of the rotating shaft 40, and the outer sides of the bearings are in contact with the rotating seat 30.

By the arrangement, the two bearings can limit the rotation shaft 40 axially and play a role in limiting the damping part 10 axially, so that the damping part 10 cannot generate relative displacement with the rotation shaft 40 axially during working.

In some embodiments, to ensure the supporting effect of the bearings, the two bearings are deep groove ball bearings, thereby ensuring the strength of the bearings.

The utility model also provides a rotating device, which comprises a rotating mechanism and the rotating shaft damping mechanism 100, wherein the rotating shaft damping mechanism 100 is arranged on the rotating mechanism, the specific structure of the rotating shaft damping mechanism 100 refers to the embodiment, and the rotating device at least has all beneficial effects brought by the technical schemes of the embodiment because the rotating device adopts all the technical schemes of the embodiment, and the description is omitted.

In this embodiment, the turning device may be a turning lathe, a hand drill, or the like, and is not particularly limited herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A rotary shaft damping mechanism, comprising:

A rotating seat;

2. The spindle damping mechanism of claim 1 wherein the locking device is threadedly engaged with the rotating base.

3. The spindle damping mechanism according to claim 2, wherein at least one of said locking means partially projects outside of said rotating seat.

4. The spindle damping mechanism according to claim 1, wherein the damping member comprises:

An inner damper that abuts on a peripheral side of the rotating shaft; and

5. The rotary shaft damping mechanism as claimed in claim 4, wherein the inner damping sheet is a polyoxymethylene resin body;

And/or, the outer damping fin is a rigid body.

6. A rotary shaft damping mechanism according to any one of claims 1 to 5, wherein at least two damping members are provided, the at least two damping members being spaced apart along the circumference of the rotary shaft, each damping member being provided with at least one locking means.

7. The spindle damping mechanism of claim 6 wherein at least two of said damping members are distributed in an annular array along the axis of said spindle.

8. The rotary shaft damping mechanism according to any one of claims 1 to 5, wherein a locking direction of the locking device is perpendicular to an axial direction of the rotary shaft.

9. The rotary shaft damping mechanism according to any one of claims 1 to 5, further comprising two bearings, the two bearings being fitted to the rotary shaft, the two bearings being provided on both sides of the damping member in the axial direction of the rotary shaft, respectively, and the outer sides of the bearings being in contact with the rotary seat.

10. A rotary device comprising a rotary mechanism and a rotary shaft damping mechanism according to any one of claims 1 to 9, wherein the rotary shaft damping mechanism is provided to the rotary mechanism.