CN106151374A - A kind of chain unit - Google Patents
A kind of chain unit Download PDFInfo
- Publication number
- CN106151374A CN106151374A CN201510143824.9A CN201510143824A CN106151374A CN 106151374 A CN106151374 A CN 106151374A CN 201510143824 A CN201510143824 A CN 201510143824A CN 106151374 A CN106151374 A CN 106151374A
- Authority
- CN
- China
- Prior art keywords
- rubber layer
- axle sleeve
- buffer part
- bearing pin
- connecting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Support Of The Bearing (AREA)
Abstract
The invention provides a kind of chain unit, it solve short problem in existing chain service life.This a kind of chain unit includes the two pieces of inner plates being fixed together by axle sleeve, the outside of two pieces of inner plates is all correspondingly provided with one piece of outer plate and two pieces of outer plates are fixed together by a bearing pin, axle sleeve is set on bearing pin and is set with roller on this axle sleeve, the part that bearing pin is positioned at axle sleeve includes being positioned at the connecting portion at middle part and is positioned at the buffer part at connecting portion two ends, connecting portion and buffer part are all cylindrical and connecting portion passes through matched in clearance with axle sleeve, it is equipped with between each buffer part and axle sleeve in circular rubber layer, rubber layer is coaxial with bearing pin, the inner side of rubber layer reclines with buffer part sidewall phase and this rubber layer interior, the diameter sum of the difference of external diameter and buffer part and the equal diameters of connecting portion, rubber layer is attached in buffer part by way of spraying.The advantage that this chain unit has length in service life.
Description
Technical field
The present invention relates to a kind of chain, particularly a kind of chain unit.
Background technology
Chain is a kind of very common drive disk assembly, existing chain is substantially cascaded by a section chain unit, and chain unit is made up of two pieces of inner plates, two pieces of outer plates, axle sleeve, bearing pin, rollers etc., wherein, two pieces of inner plates are just to arranging and be fixed together by axle sleeve, two pieces of inner plates are respectively positioned between two pieces of outer plates and outer plate is relative with inner plate position, and two pieces of outer plates are fixed together by bearing pin, and axle sleeve is set on bearing pin and roller sleeve is contained on axle sleeve.
In actual product, axle sleeve cylindrically and this axle sleeve two ends respectively with the connecting hole interference fit on inner plate to realize the purpose that two pieces of inner plates are fixed together.But operationally, inner chain sheet is applied with bigger pressure to axle sleeve two-end part, and metal passes through crimp, and inner hole of shaft sleeve can be made to shrink, diameter diminishes, when bearing pin rotates relative to axle sleeve, first bearing pin can contact with inner hole of shaft sleeve two-end part, easily causes contact position abrasion, the maximum local two-end part diameter of bearing pin stress diminishes, form the sunk structure that stress is concentrated, and then the phenomenon in the fracture of this recess and rapid wear for the bearing pin occurs, shorten the service life of whole chain.
Content of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that a kind of service life length chain unit.
nullThe purpose of the present invention can be realized by following technical proposal: a kind of chain unit，Including the two pieces of inner plates being fixed together by axle sleeve，The outside of two pieces of inner plates is all correspondingly provided with one piece of outer plate and two pieces of outer plates are fixed together by a bearing pin，Described axle sleeve is set on described bearing pin and is set with roller on this axle sleeve，It is characterized in that，The part that described bearing pin is positioned at axle sleeve includes being positioned at the connecting portion at middle part and is positioned at the buffer part at connecting portion two ends，Described connecting portion and buffer part are all cylindrical and connecting portion passes through matched in clearance with axle sleeve，It is equipped with in circular rubber layer between each described buffer part and axle sleeve，Described rubber layer is coaxial with bearing pin，The inner side of described rubber layer reclines with buffer part sidewall phase and this rubber layer interior、The diameter sum of the difference of external diameter and buffer part and the equal diameters of connecting portion，Described rubber layer is attached in buffer part by way of spraying.
By arranging rubber layer at buffer part sidepiece, whole buffer part is wrapped, buffer part is played a protective role thus avoids buffer part directly to contact friction with axle sleeve, improve the service life of bearing pin；Simultaneously, by arranging rubber layer, when the endoporus at axle sleeve two ends shrinks, axle sleeve can offset with rubber layer makes rubber layer generation elastic deformation absorb the active force producing when both collide, thus effectively reduce the above-mentioned active force suffered by bearing pin, further increase the service life of bearing pin, thus improve the service life of this chain unit.
In above-mentioned chain unit, each described rubber layer lateral wall being equipped with groove in the form of a ring, described groove is coaxial with described rubber layer.
When actually used, fill lubricating grease in groove, lubricate the contact surface of rubber layer and axle sleeve avoiding dry friction between the two, thus improve the service life of rubber layer and the fixing being connected with bearing pin, then improve the service life of bearing pin, improve the service life of this chain unit.
In above-mentioned chain unit, each described rubber layer is equipped with several above-mentioned grooves, and axially uniform along described buffer part of several grooves.
All fill lubricating grease in each groove, further increase the lubricant effect between rubber layer and axle sleeve, improve the service life of this chain unit.
In above-mentioned chain unit, the cross section of each described groove is all dovetail-shape.
The cross section of groove is dovetail-shape, position-limiting action can be played to the lubricating grease being filled in groove, lubricating grease can only be flowed out in groove when rubber layer is squeezed, so that lubricating grease can be entirely used for the lubrication between axle sleeve and rubber layer, improve the service life of rubber layer and the fixing being connected with bearing pin, then improve the service life of bearing pin, improve the service life of this chain unit.
In above-mentioned chain unit, the degree of depth of described groove is
0.25
Centimetre.
Compared with prior art, this chain unit has the advantage that
1
, by arranging rubber layer at buffer part sidepiece, whole buffer part is wrapped, buffer part is played a protective role thus avoids buffer part directly to contact friction with axle sleeve, improve the service life of bearing pin.
, by arranging rubber layer, when the endoporus at axle sleeve two ends shrinks, axle sleeve can offset with rubber layer makes rubber layer generation elastic deformation absorb the active force producing when both collide, thus effectively reduce the above-mentioned active force suffered by bearing pin, further increase the service life of bearing pin, thus improve the service life of this chain unit.
, groove cross section dovetail-shape, position-limiting action can be played to the lubricating grease being filled in groove, lubricating grease can only be flowed out in groove when rubber layer is squeezed, so that lubricating grease can be entirely used for the lubrication between axle sleeve and rubber layer, improve the service life of rubber layer and the fixing being connected with bearing pin, then improve the service life of bearing pin, improve the service life of this chain unit.
Brief description
Figure
1
It is the structural representation of this chain unit；
Figure
2
It is figure
1
In
A
The structure for amplifying schematic diagram at place；
In figure,
1
, inner plate；
2
, outer plate；
3
, bearing pin；
3a
, connecting portion；
3b
, buffer part；
4
, axle sleeve；
5
, roller；
6
, rubber layer；
6a
, groove.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described, but the present invention is not limited to these embodiments.
Such as figure
1
Shown in, this chain unit is by inner plate
1
, outer plate
2
, bearing pin
3
, axle sleeve
4
, roller
5
Deng composition.
Wherein, inner plate
1
Have two pieces and two inner plates
1
Just to setting.Every piece of inner plate
1
Side is all run through connecting hole one, axle sleeve
4
Cylindrically and this axle sleeve
4
Two ends be respectively embedded in two connecting holes one, now, axle sleeve
4
Two ends respectively together with the madial wall tight abutment of two connecting holes one so that two pieces of inner plates
1
It is firmly secured at together.Such as figure
2
Shown in, axle sleeve
4
On be arranged with roller cylindrically
5
。
Outer plate
2
Also there are two pieces and two inner plates
1
It is respectively positioned on two outer plates
2
Between, outer plate
2
With inner plate
1
Position is relative and every piece of outer plate
2
Side is all run through connecting hole two, bearing pin
3
Two ends be respectively embedded in connecting hole two in make two outer plates
2
It is fixed together, and now, bearing pin
3
It is located in axle sleeve
4
In.
Specifically, bearing pin
3
It is positioned at axle sleeve
4
Interior part includes and axle sleeve
4
Matched in clearance and the connecting portion being positioned at middle part
3a
Be positioned at connecting portion
3a
The buffer part at two ends
3b
.Wherein, buffer part
3b
And connecting portion
3a
All cylindrical and connecting portion
3a
Diameter be more than buffer part
3b
Diameter.Each buffer part
3b
With axle sleeve
4
Between be equipped with in circular rubber layer
6
And rubber layer
6
With bearing pin
3
Coaxially.In the present embodiment, rubber layer
6
It is attached to buffer part by way of spraying
3b
On make bearing pin
3
And rubber layer
6
Form an entirety.
Such as figure
1
And figure
2
Shown in, rubber layer
6
Inner side and buffer part
3b
Sidewall phase reclines and this rubber layer
6
The difference in inside and outside footpath and buffer part
3b
Diameter sum and connecting portion
3a
Equal diameters, i.e. rubber layer
6
And bearing pin
3
The entirety being formed and axle sleeve
4
By matched in clearance, to realize bearing pin
3
Purpose around own axis.Further illustrate, each rubber layer
6
It is equipped with some grooves in the form of a ring on lateral wall
6a
And each groove
6a
All and rubber layer
6
Coaxially, some grooves
6a
Along buffer part
3b
Axially uniform, when actually used, groove
6a
Interior filling lubricating grease, lubricates rubber layer
6
With axle sleeve
4
Contact surface avoiding dry friction between the two, thus improve rubber layer
6
Service life and and bearing pin
3
The fixing connecting, improves bearing pin then
3
Service life, improve the service life of this chain unit.
Optimize further, each groove
6a
Cross section all dovetail-shape, to being filled in groove
6a
Interior lubricating grease can play position-limiting action so that lubricating grease can only be at rubber layer
6
From groove when being squeezed
6a
Interior outflow, so that lubricating grease can be entirely used for axle sleeve
4
And rubber layer
6
Between lubrication, improve rubber layer
6
Service life and and bearing pin
3
The fixing connecting, improves bearing pin then
3
Service life, improve the service life of this chain unit.Groove
6a
The degree of depth be
0.25
Centimetre.
Specific embodiment described herein is only explanation for example to present invention spirit.Described specific embodiment can be made various modification or supplements or use similar mode to substitute by those skilled in the art, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (5)
- null1. a chain unit，Including the two pieces of inner plates being fixed together by axle sleeve，The outside of two pieces of inner plates is all correspondingly provided with one piece of outer plate and two pieces of outer plates are fixed together by a bearing pin，Described axle sleeve is set on described bearing pin and is set with roller on this axle sleeve，It is characterized in that，The part that described bearing pin is positioned at axle sleeve includes being positioned at the connecting portion at middle part and is positioned at the buffer part at connecting portion two ends，Described connecting portion and buffer part are all cylindrical and connecting portion passes through matched in clearance with axle sleeve，It is equipped with in circular rubber layer between each described buffer part and axle sleeve，Described rubber layer is coaxial with bearing pin，The inner side of described rubber layer reclines with buffer part sidewall phase and this rubber layer interior、The diameter sum of the difference of external diameter and buffer part and the equal diameters of connecting portion，Described rubber layer is attached in buffer part by way of spraying.
- 2. chain unit according to claim 1, it is characterised in that: being equipped with groove in the form of a ring on each described rubber layer lateral wall, described groove is coaxial with described rubber layer.
- 3. chain unit according to claim 2, it is characterised in that: it is equipped with several above-mentioned grooves on each described rubber layer, and axially uniform along described buffer part of several grooves.
- 4. chain unit according to claim 3, it is characterised in that: the cross section of each described groove is all dovetail-shape.
- 5. chain unit according to claim 4, it is characterised in that: the degree of depth of described groove is 0.25 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143824.9A CN106151374A (en) | 2015-03-31 | 2015-03-31 | A kind of chain unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143824.9A CN106151374A (en) | 2015-03-31 | 2015-03-31 | A kind of chain unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151374A true CN106151374A (en) | 2016-11-23 |
Family
ID=57340266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510143824.9A Pending CN106151374A (en) | 2015-03-31 | 2015-03-31 | A kind of chain unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606059A (en) * | 2017-10-30 | 2018-01-19 | 泰州亚东链条有限公司 | A kind of chain with noise reduction buffering effect |
-
2015
- 2015-03-31 CN CN201510143824.9A patent/CN106151374A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606059A (en) * | 2017-10-30 | 2018-01-19 | 泰州亚东链条有限公司 | A kind of chain with noise reduction buffering effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |