CN208816594U - Jackshaft vibration absorber and transmission component - Google Patents

Abstract

The utility model discloses a kind of jackshaft vibration absorber and transmission components.Jackshaft vibration absorber includes mass block, and counterweight is detachably provided on mass block, and the mounting hole of perforation mass block is offered on mass block；At least three shock absorption bars, each shock absorption bar being axially disposed in mounting hole along mounting hole, and at least three shock absorption bars are uniformly distributed along the circumferential direction of mounting hole；Extend towards the direction of the central axis close to mounting hole on each shock absorption bar backwards to the side of the hole wall of mounting hole.Transmission component includes jackshaft and the driving wheel that jackshaft both ends are arranged in, it further include jackshaft vibration absorber, jackshaft is worn into mounting hole, and the side of the hole wall at least three shock absorption bars backwards to mounting hole is connected on the axial plane of jackshaft.Jackshaft vibration absorber and transmission component provided by the utility model, optimize the vibration of vehicle and the problem that noise is larger, improve comfort level by bus, increase the stability of jackshaft.

Description

Jackshaft vibration absorber and transmission component

Technical field

The utility model relates to vehicle component technical field more particularly to a kind of jackshaft vibration absorbers and transmission group Part.

Background technique

Jackshaft is connecting shaft between differential mechanism and driving wheel on vehicle, be transmission in vehicle operation and by Power component.

In the prior art, the first natural frequency of the vibration frequency of the connecting component on jackshaft and jackshaft itself The phenomenon that will appear coincidence, at this point, jackshaft and connecting component resonate, the amplitude of jackshaft is larger, and jackshaft will be by To vibration reach vehicle body, vibrational energy incoming car is issued rumbling after vehicle is vibrated again after underbody excited vibration Low-frequency noise, the vibration of vehicle and noise have it is to be optimized, passenger ride comfort level have it is to be hoisted；In addition, jackshaft It vibrates larger, increases the friction between jackshaft and driving wheel, jackshaft and differential mechanism, the stable structure of jackshaft Property is to be improved.

Utility model content

The utility model provides a kind of jackshaft vibration absorber and transmission component, to optimize the vibration of vehicle in the prior art The dynamic and larger problem of noise, promotes comfort level by bus, while increasing the stability of jackshaft.

The utility model provides a kind of jackshaft vibration absorber, comprising: mass block, on the mass block removably It is provided with counterweight, the mounting hole for penetrating through the mass block is offered on the mass block；At least three shock absorption bars, the vibration damping Item is elastic strip, each shock absorption bar being axially disposed in the mounting hole along the mounting hole, and at least three The shock absorption bar is uniformly distributed along the circumferential direction of the mounting hole；Backwards to the one of the hole wall of the mounting hole on each shock absorption bar Side extends towards the direction of the central axis close to the mounting hole, backwards to the mounting hole at least three shock absorption bars The side of hole wall limits cylindrical surface.

Optionally, the jackshaft vibration absorber further includes shock-reducing sleeve, and the shock-reducing sleeve fitting is arranged in the installation The inner surface of the inner surface in hole, the shock-reducing sleeve is cylindrical surface, and at least three shock absorption bars are mounted on the interior of the shock-reducing sleeve Surface.

Optionally, the shock-reducing sleeve is resilient sleeve.

Optionally, in the shock-reducing sleeve and the shock absorption bar, at least one is made of rubber.

Optionally, at least three shock absorption bars and the shock-reducing sleeve are integrally formed.

Optionally, the counterweight is sheet metal, is pasted with the sheet metal on the mass block.

Optionally, the counterweight is wire, is wound with the wire on the mass block.

Optionally, the shape of the mass block is polygon prism, and the mounting hole penetrates through the both ends of the polygon prism.

Optionally, the shape of the shock absorption bar is cuboid.

Based on the same inventive concept, the utility model additionally provides a kind of transmission component, including jackshaft and setting Driving wheel at the jackshaft both ends, further includes jackshaft vibration absorber, and the jackshaft is worn into the installation In hole, the axial plane of the jackshaft is connected at least three shock absorption bars backwards to the side of the hole wall of the mounting hole On.

Jackshaft vibration absorber and transmission component provided by the utility model, the weight of counterweight can there are many, lead to Cross the different counterweight of the installation quality on mass block, thus it is possible to vary the vibration frequency of mass block, jackshaft are threaded through installation After in hole, it can resonate to avoid jackshaft and connected component, reduce the vibration frequency of jackshaft；Vibration damping The side of hole wall on item far from mounting hole is connected on jackshaft, is mitigated the vibration of jackshaft, is reduced jackshaft The friction occurred with the hole wall of mounting hole, increases the stability of jackshaft, has not only acted as the effect of vibration and noise reducing, also prolonged The service life for having grown jackshaft improves the comfort level that passenger rides.

Detailed description of the invention

It below will be by preferred embodiment in attached drawing the present invention is described in detail, to help the purpose of the present invention and excellent is understood Point, in which:

Fig. 1 is the structural schematic diagram for the jackshaft vibration absorber that the utility model alternative embodiment provides.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the cross-sectional view of Fig. 1.

Fig. 4 is the structural schematic diagram for the mass block that the utility model alternative embodiment provides.

Fig. 5 is the structural schematic diagram for the shock-reducing sleeve that the utility model alternative embodiment provides.

Specific embodiment

It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc. Positional terms are defined relative to each construction shown in the drawings, and word "inner" and "outside" refer respectively to direction or remote From the direction of geometric center of specific component, they are opposite concepts, and it is therefore possible to can different location, difference according to locating for it Use state and correspondingly changed.So also these or other positional terms should not be construed to restricted use Language.

Fig. 1 is the structural schematic diagram for the jackshaft vibration absorber that the utility model alternative embodiment provides, Fig. 2 Fig. 1 Left view, Fig. 3 is the cross-sectional view of Fig. 1, and Fig. 4 is the structural schematic diagram of mass block that the utility model alternative embodiment provides. As shown in Figures 1 to 4, the utility model provides a kind of jackshaft vibration absorber, including mass block 1 and nine shock absorption bars 2.

Referring to Fig. 1 to Fig. 4, it is detachably provided with counterweight on the mass block 1, is opened on the mass block 1 Equipped with the mounting hole 11 for penetrating through the mass block 1, wherein the section of Fig. 3 is by the face where the central axis of mounting hole 11. The shock absorption bar 2 is elastic strip, and each shock absorption bar 2 is axially disposed within the mounting hole 11 along the mounting hole 11 It is interior, and nine shock absorption bars 2 are uniformly distributed along the circumferential direction of the mounting hole 11, so that 2 even support of shock absorption bar, increases vibration damping Effect.Backwards to the side of the hole wall of the mounting hole 11 towards the center close to the mounting hole 11 on each shock absorption bar 2 The direction of axis extends, and the side of the hole wall at least three shock absorption bars 2 backwards to the mounting hole 11 limits cylindrical surface.

The weight of counterweight can there are many, pass through the counterweight that the installation quality on mass block 1 is different, thus it is possible to vary matter The vibration frequency of gauge block 1 can be to avoid jackshaft and connected component after jackshaft is threaded through in mounting hole 11 It resonates, reduces the vibration frequency of jackshaft.One end of wall surface on shock absorption bar 2 far from mounting hole 11 is connected to transmission half On axis, the vibration of jackshaft can be buffered, the friction of the hole wall generation of jackshaft and mounting hole 11 is reduced, increases biography The stability of dynamic semiaxis, has not only acted as the effect of vibration and noise reducing, has also extended the service life of jackshaft, improve passenger Comfort level by bus.In addition, the elasticity that shock absorption bar 2 has can make the hole on nine shock absorption bars 2 backwards to the mounting hole 11 The aperture that the side of wall limits cylindrical surface is variable, to adapt to the diameter change of jackshaft 2mm or so, increases jackshaft The scope of application of vibration absorber.

Specifically, it is an optional implementation process that the quantity of shock absorption bar 2, which is arranged to nine, shock absorption bar 2 and transmission at this time Contact area between semiaxis is larger, and stability is high.The quantity of shock absorption bar 2 can be three or more other settings, to realize Jackshaft is effectively limited.

Fig. 5 is the structural schematic diagram for the shock-reducing sleeve that the utility model alternative embodiment provides.

As shown in figure 5, the jackshaft vibration absorber can also include shock-reducing sleeve 3, the fitting of shock-reducing sleeve 3 setting exists The inner surface of the inner surface of the mounting hole 11, the shock-reducing sleeve 3 is cylindrical surface, and at least three shock absorption bars 2 are mounted on institute State the inner surface of shock-reducing sleeve 3.Shock absorption bar 2 is mounted on after the inner surface of shock-reducing sleeve 3 and is commonly mounted on mounting hole 11 with shock-reducing sleeve 3 It is interior, reduce the installation difficulty that shock absorption bar 2 is arranged in mounting hole 11.

Preferably, the shock-reducing sleeve 3 is resilient sleeve, there is shock-reducing sleeve 3 elasticity can further increase subtracting for shock absorption bar 2 Vibration effect increases stability of the jackshaft when vehicle is run.

Make an optional implementation process, in the shock-reducing sleeve 3 and the shock absorption bar 2, at least one is made of rubber, Rubber has the ability of good buffering and recovery deformation, and shock-reducing sleeve 3 and shock absorption bar 2 are arranged to rubber material, can make shock-reducing sleeve 3 There is good buffer shock-absorbing effect with shock absorption bar 2.

Optionally, at least three shock absorption bars 2 are integrally formed with the shock-reducing sleeve 3, and shock absorption bar 2 and shock-reducing sleeve 3 can be with Integrated injection molding, to reduce the production cost of jackshaft vibration absorber.

Optionally, the counterweight is sheet metal, and the outer axial face of the mass block 1 is pasted with sheet metal, thus it is possible to vary gold Belong to the weight of piece, the weight of jackshaft vibration absorber carries out integrated regulation.

Preferably, the counterweight is wire, the outer surface of the mass block 1 is wound with wire, and wire can be with Jackshaft vibration absorber is finely adjusted, effectiveness in vibration suppression is further promoted.

Preferably, the shape of the mass block 1 is polygon prism, the mounting hole 11 penetrates through the both ends of the polygon prism.It is more The side of prism is plane, and sheet metal is pasted on the side of polygon prism can increase the contact between multi-prismatic surface and sheet metal Area；Wire is wound in the side of polygon prism, wire is limited on the rib of polygon prism, can increase wire and polygon prism Coefficient of friction, be effectively prevented wire and slipped from polygon prism, increase the stability of wire.

As an optional implementation process, the shape of the shock absorption bar 2 is cuboid.Shock absorption bar 2 is from mounting hole 11 First end extends to the second end of mounting hole 11, and wherein shock absorption bar 2 remains permanent in the contact area of length direction and jackshaft It is fixed, increase the stability that shock absorption bar 2 limits jackshaft.

Based on the same inventive concept, the utility model additionally provides a kind of transmission component, including jackshaft and difference The differential mechanism and driving wheel at the jackshaft both ends are set, further include the dress of jackshaft vibration damping described in any of the above one It sets, the jackshaft is worn into the mounting hole 11, backwards to the hole of the mounting hole 11 at least three shock absorption bars 2 The side of wall is connected on the axial plane of the jackshaft.Counterweight can change the weight of mass block 1, avoid jackshaft It resonates with differential mechanism or driving wheel, reduces the vibration frequency of vehicle body, reduce the vibration noise of vehicle, at least three of setting subtract The item 2 that shakes can buffer the vibration of jackshaft, increase the stability of jackshaft during jackshaft is run, Mitigate the abrasion of jackshaft.

Jackshaft vibration absorber and transmission component provided by the embodiment of the utility model, the weight of counterweight can have more Kind, pass through the counterweight that the installation quality on mass block 1 is different, thus it is possible to vary the vibration frequency of mass block 1, jackshaft are worn After in mounting hole 11, it can resonate to avoid jackshaft and connected component, reduce the vibration of jackshaft Frequency；The side of hole wall on shock absorption bar 2 far from mounting hole 11 is connected on jackshaft, is mitigated the vibration of jackshaft, is subtracted The friction that the hole wall of small jackshaft and mounting hole 11 occurs, increases the stability of jackshaft, has not only acted as vibration damping The effect of noise reduction also extends the service life of jackshaft, improves the comfort level that passenger rides.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of jackshaft vibration absorber characterized by comprising

Mass block is detachably provided with counterweight on the mass block, and the perforation mass block is offered on the mass block Mounting hole；

At least three shock absorption bars, the shock absorption bar are elastic strip, and axial direction of each shock absorption bar along the mounting hole is set It sets in the mounting hole, and at least three shock absorption bars are uniformly distributed along the circumferential direction of the mounting hole；Each vibration damping Extend towards the direction of the central axis close to the mounting hole on item backwards to the side of the hole wall of the mounting hole, at least three The side of hole wall on the shock absorption bar backwards to the mounting hole limits cylindrical surface.

2. jackshaft vibration absorber according to claim 1, which is characterized in that the jackshaft vibration absorber also wraps Shock-reducing sleeve is included, the inner surface of the mounting hole is arranged in the shock-reducing sleeve fitting, and the inner surface of the shock-reducing sleeve is cylindrical surface, until Few three shock absorption bars are mounted on the inner surface of the shock-reducing sleeve.

3. jackshaft vibration absorber according to claim 2, which is characterized in that the shock-reducing sleeve is resilient sleeve.

4. jackshaft vibration absorber according to claim 3, which is characterized in that the shock-reducing sleeve and the shock absorption bar In, at least one is made of rubber.

5. jackshaft vibration absorber according to claim 4, which is characterized in that at least three shock absorption bars with it is described Shock-reducing sleeve is integrally formed.

6. jackshaft vibration absorber according to claim 1, which is characterized in that the counterweight is sheet metal, described The sheet metal is pasted on mass block.

7. jackshaft vibration absorber according to claim 1, which is characterized in that the counterweight is wire, described The wire is wound on mass block.

8. according to jackshaft vibration absorber described in claim 6-7 any one, which is characterized in that the shape of the mass block Shape is polygon prism, and the mounting hole penetrates through the both ends of the polygon prism.

9. jackshaft vibration absorber according to claim 1, which is characterized in that the shape of the shock absorption bar is rectangular Body.

10. a kind of transmission component, including jackshaft and the driving wheel at the jackshaft both ends is set, feature exists In further including jackshaft vibration absorber described in any one of claim 1-9, the jackshaft is worn into the installation In hole, the axial plane of the jackshaft is connected at least three shock absorption bars backwards to the side of the hole wall of the mounting hole On.