CN221003640U - Rolling pin chain - Google Patents
Rolling pin chain Download PDFInfo
- Publication number
- CN221003640U CN221003640U CN202323199306.8U CN202323199306U CN221003640U CN 221003640 U CN221003640 U CN 221003640U CN 202323199306 U CN202323199306 U CN 202323199306U CN 221003640 U CN221003640 U CN 221003640U
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- pin shaft
- hole
- peripheral surface
- pin
- link plate
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- 238000005096 rolling process Methods 0.000 title claims description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 64
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides a roller pin chain, which is used for being meshed with a chain wheel and consists of a plurality of inner chain links and outer chain links which are alternately connected; the inner link includes a first inner link plate and a second inner link plate disposed at a predetermined interval; a first inner pin shaft is integrally fixed between the first inner pin hole and the third inner pin hole; a second inner pin shaft is integrally fixed between the second inner pin hole and the fourth inner pin hole; the outer links include first and second outer link plates disposed at a predetermined interval; a first outer pin shaft is integrally fixed between the first outer link plate hole and the third outer link plate hole; a second outer pin shaft is integrally fixed between the second outer link plate hole and the fourth link plate pin hole; for each inner chain link, the first side peripheral surface of the first outer pin shaft of the second pin shaft pair and the second side peripheral surface of the second inner pin shaft are arc-shaped curved surfaces, the two arc-shaped curved surfaces are positioned on the same peripheral surface, and the arc-shaped curved surfaces are consistent with the arc of the sprocket tooth part so as to ensure smooth engagement.
Description
Technical Field
The application relates to a chain, in particular to a roller pin chain.
Background
The sleeve roller chain has the operation mode of driving the rollers by the chain wheels for more than 100 years, the chain pin shafts and the sleeve are directly hinged (sliding friction) in the rotation process of the chain wheels, the chain wheels stir the chain rollers, the chain wheels and the rollers are in half rolling friction, and the rollers and the sleeve are in sliding friction. The rollers in the sleeve roller chain can be omitted, at the moment, the sprocket teeth directly stir the sleeve to operate, and when no rollers exist, the sprocket directly slides and rubs with the sleeve.
According to the sleeve thickness design standard of sleeve roller chains of pages 192-194 of the chain transmission technical manual published by the mechanical industry press, taking a 16A standard roller chain as an example, the sleeve wall thickness is only 1.59mm, and the sleeve wall thickness is very thin. When the chain runs, the sleeve is continuously worn due to sliding friction when the pin shaft is hinged with the sleeve and sliding friction between the roller and the sleeve. The sleeve wall thickness is worn and thinned, meanwhile, the outer diameter of the pin shaft is worn and thinned due to the fact that the inner hole of the sleeve is worn and thinned, the pitch of the chain is increased, the pitch of the chain is inconsistent with the pitch of the sprocket teeth, and interference shake can be generated when the chain is meshed with the sprocket. Since the sleeve wall thickness is very thin, the sleeve is very susceptible to chipping during this meshing shaking impact, resulting in chain failure. The wall thickness of the standard sleeve roller chain is designed in a matched mode with the roller size of the chain pin shaft, and the thickness cannot be enhanced and increased independently.
Disclosure of utility model
In view of the above, the present application aims to propose a roller pin chain that can replace a bush roller chain.
The roller pin chain is used for being meshed with a chain wheel and consists of a plurality of inner chain links and outer chain links which are alternately connected; wherein,
The inner link includes a first inner link plate and a second inner link plate disposed at a predetermined interval; the first end of the first inner link plate forms a first inner link plate hole; the second end of the first inner link plate forms a second inner link plate hole; the first end of the second inner link plate forms a third inner link plate hole; the second end of the second inner link plate forms a fourth inner link plate hole; the first inner link plate hole comprises a first inner pin hole and a first outer pin hole which are communicated; the second inner link plate hole comprises a second inner pin hole and a second outer pin hole which are communicated; the third inner chain plate hole comprises a third inner pin hole and a third outer pin hole which are communicated; the fourth inner link plate hole comprises a fourth inner pin hole and a fourth outer pin hole which are communicated; a first inner pin shaft is integrally fixed between the first inner pin hole and the third inner pin hole; a second inner pin shaft is integrally fixed between the second inner pin hole and the fourth inner pin hole;
The outer links include first and second outer link plates disposed at a predetermined interval; the first end of the first outer link plate forms a first outer link plate hole; the second end of the first outer link plate forms a second outer link plate hole; the first end of the second outer link plate forms a third outer link plate hole; the second end of the second outer link plate forms a fourth outer link plate hole; a first outer pin shaft is integrally fixed between the first outer link plate hole and the third outer link plate hole; a second outer pin shaft is integrally fixed between the second outer link plate hole and the fourth link plate pin hole;
For each inner chain link, a first outer pin shaft of an upstream outer chain link adjacent to the inner chain link passes through a second outer pin shaft hole and a fourth outer pin shaft hole of the inner chain link to be installed at the second end of the inner chain link, the first outer pin shaft is positioned at a first side of a second inner pin shaft of the inner chain link, the second side peripheral surface of the first outer pin shaft and the first side peripheral surface of the second inner pin shaft can be engaged together in a relatively rolling manner to form a second pin shaft pair, and the first side peripheral surface of the first outer pin shaft can slide along the peripheral surfaces of the second outer pin shaft hole and the fourth outer pin shaft hole; a second outer pin shaft of the downstream outer link, which is close to the inner link, passes through the first outer pin shaft hole and the third outer pin shaft hole of the inner link and is arranged at the first end of the inner link, the second outer pin shaft is positioned at the second side of the first inner pin shaft of the inner link, the first side peripheral surface of the second outer pin shaft and the second side peripheral surface of the first inner pin shaft can be engaged together in a relatively rolling manner to form a first pin shaft pair, and the second side peripheral surface of the second outer pin shaft can slide along the peripheral surfaces of the first outer pin shaft hole and the third outer pin shaft hole;
For each inner link, it acts directly on the teeth of the sprocket through either the first pin pair or the second pin pair;
For each inner chain link, the first side peripheral surface of the first outer pin shaft of the second pin shaft pair and the second side peripheral surface of the second inner pin shaft are arc-shaped curved surfaces, the two arc-shaped curved surfaces are positioned on the same peripheral surface, and the arc-shaped curved surfaces are consistent with the arc of the sprocket tooth part so as to ensure smooth engagement; the second side peripheral surface of the second outer pin shaft of the first pin shaft pair and the first side peripheral surface of the first inner pin shaft are arc-shaped curved surfaces, the two arc-shaped curved surfaces are positioned on the same peripheral surface, and the arc-shaped curved surfaces are consistent with the arc of the sprocket tooth part so as to ensure smooth engagement.
Preferably, for each inner link, at least one of the second side peripheral surface of the first outer pin of the second pin pair and the first side peripheral surface of the second inner pin is a circular arc-shaped curved surface; at least one of the first side peripheral surface of the second outer pin shaft of the first pin shaft pair and the second side peripheral surface of the first inner pin shaft is a circular arc-shaped curved surface.
Preferably, the second side circumferential surface of the first outer pin shaft and the first side circumferential surface of the second outer pin shaft are planes;
The first side peripheral surface of the second inner pin shaft and the second side peripheral surface of the first inner pin shaft are arc-shaped curved surfaces.
Preferably, the second side circumferential surface of the first outer pin shaft and the first side circumferential surface of the second outer pin shaft are arc-shaped curved surfaces;
the first side peripheral surface of the second inner pin shaft and the second side peripheral surface of the first inner pin shaft are planes.
Preferably, the second side circumferential surface of the first outer pin shaft and the first side circumferential surface of the second outer pin shaft are arc-shaped curved surfaces;
The first side peripheral surface of the second inner pin shaft and the second side peripheral surface of the first inner pin shaft are arc-shaped curved surfaces.
According to the roller pin chain, the pin shaft and sleeve structure in the sleeve roller chain is replaced by the pin shaft pair capable of relatively rolling, so that the defects of thin wall and relatively poor shock resistance after the whole thickness of the sleeve in the sleeve roller chain is distributed in a circle are overcome; in addition, the two pins in the pin shaft pair roll relatively, the friction between the two pins is rolling friction, and the sliding friction is between the pin shaft and the sleeve in the sleeve roller chain, so that the loss caused by friction is greatly reduced, and the defect that the impact resistance of the sleeve roller chain is further deteriorated due to the fact that the sleeve is easy to rub with the pin shaft during operation is overcome. The pin roll pair of the roller pin chain has smoother operation, smaller noise and smoother operation due to relative rolling, and the wear-resistant service life of the chain can be greatly prolonged.
Drawings
FIG. 1 is a schematic perspective view of an inner link of a roller pin chain of the present application;
FIG. 2 is a schematic front view of the inner link of the roller pin chain of the present application;
FIG. 3 is a schematic top view of the inner link of the roller pin chain of the present application;
FIG. 4 is a schematic cross-sectional view of the inner link of the roller pin chain of the present application along the line A-A;
FIG. 5 is a schematic perspective view of an inner link plate of an inner link of the roller pin chain of the present application;
FIG. 6 is a schematic perspective view of an outer link of the roller pin chain of the present application;
FIG. 7 is a schematic view showing a front view of an outer link of the roller pin chain of the present application;
FIG. 8 is a schematic top view of an outer link of the roller pin chain of the present application;
FIG. 9 is a schematic cross-sectional view of the outer link of the roller pin chain of the present application along line B-B;
Fig. 10 is a schematic perspective view of an outer link plate of an outer link of the roller pin chain of the present application;
FIG. 11 is a schematic diagram of the combination of the inner pin of the inner link and the outer pin of the outer link of the roller pin chain of the present application;
FIG. 12 is a schematic cross-sectional view of FIG. 11;
FIG. 13 is a schematic perspective view of a roller pin chain according to the present application;
FIG. 14 is a schematic front view of the roller pin chain of FIG. 13;
FIG. 15 is a schematic top view of the roller pin chain of FIG. 13;
FIG. 16 is a schematic cross-sectional view of the roller pin chain of FIG. 15 along line C-C;
FIG. 17 is a schematic view of the second outer pin and the first inner pin of the roller pin chain of the present application rolling relative to each other;
fig. 18 is a schematic view of another embodiment of a pin pair in a roller pin chain of the present application.
Detailed Description
The roller pin chain according to the present application will be described in detail with reference to the accompanying drawings.
The roller pin chain of the present application, as shown in fig. 13, for engagement with a sprocket, is composed of a plurality of inner links 10 and outer links 20 alternately connected.
The construction of inner link 10 is shown in fig. 1-5. The inner link 10 includes a first inner link plate 11a and a second inner link plate 11b disposed at predetermined intervals.
The first end of the first inner link plate 11a forms a first inner link plate aperture 13a; the second end of the first inner link plate 11a forms a second inner link plate aperture 14a.
The first end of the second inner link plate 11b forms a third inner link plate hole 13b; the second end of the second inner link plate 11b forms a fourth inner link plate aperture 14b.
The first inner link plate hole 13a is a composite hole including a first inner pin hole and a first outer pin hole that communicate, and the second inner link plate hole 14a includes a second inner pin hole and a second outer pin hole that communicate. Similarly, the third inner link plate aperture 13b includes communicating third inner and outer pin apertures; the fourth inner link plate aperture 14b includes a fourth inner link plate aperture and a fourth outer link plate aperture in communication.
A first inner pin shaft 12a is integrally fixed between the first inner pin hole and the third inner pin hole; a second inner pin shaft 12b is integrally fixed between the second inner pin hole and the fourth inner pin hole. The manner of engagement between the pin and the inner link plate is prior art, such as an interference fit, or other securing means, and will not be described in detail herein.
The outer links 20 are shown in fig. 6-10. The outer link 20 includes a first outer link plate 21a and a second outer link plate 21b disposed at predetermined intervals.
A first end of the first outer link plate 21a forms a first outer link plate hole 23a; the second end of the first outer link plate 21a forms a second outer link plate hole 23b. The first end of the second outer link plate 21b forms a third outer link plate hole and the second end of the second outer link plate forms a fourth outer link plate hole. A first outer pin 22a is integrally fixed between the first outer link plate hole 23a and the third outer link plate hole; a second outer pin shaft 22b is integrally fixed between the second outer link plate hole 23b and the fourth link plate pin hole. Similarly, the manner of engagement between the pin and the outer link plate is prior art, such as an interference fit, or other securing means, and will not be described in detail herein.
As shown in fig. 16, for each inner link 10, a first outer pin 22a of an upstream outer link 20 immediately adjacent to the inner link 10 is mounted at the second end of the inner link 10 through its second outer pin bore and fourth outer pin bore, the first outer pin 22a being located on a first side of a second inner pin 12b of the inner link 10, and a second side peripheral surface of the first outer pin 22a and a first side peripheral surface of the second inner pin 12b being relatively rollably engaged together to form a second pin pair. The first side circumferential surface of the first outer pin 22a is slidable along the circumferential surfaces of the second outer pin hole and the fourth outer pin hole. A second outer pin 22b of the outer link 20 immediately downstream of the inner link 10 is installed at the first end of the inner link 10 through the first and third outer pin holes of the inner link 10, the second outer pin 22b is located at the second side of the first inner pin 12a of the inner link 10, and the first side circumferential surface of the second outer pin 22b and the second side circumferential surface of the first inner pin 12a are engaged relatively rollably to form a first pin pair, and the second side circumferential surface of the second outer pin 22b is slidable along the circumferential surfaces of the first and third outer pin holes.
For each inner link, it directly engages the teeth of the sprocket through either the first pin pair or the second pin pair.
For each inner link 10, the first side circumferential surface of the first outer pin 22a and the second side circumferential surface of the second inner pin 12b of the second pin pair are both arc-shaped curved surfaces, and the two arc-shaped curved surfaces are located on the same circumferential surface; the second side circumferential surface of the second outer pin 22b of the first pin pair and the first side circumferential surface of the first inner pin 12a are both arc-shaped curved surfaces, and the two arc-shaped curved surfaces are located on the same circumferential surface. For the same pin shaft pair, the arc-shaped curved surfaces on the two sides are on the same circumferential surface, so that the pin shaft pair can be smoothly meshed with the sprocket teeth in the process of ensuring that the chain is in forward rotation or reverse rotation when acting with the sprocket. The fact that the arc-shaped curved surfaces on two sides are on the same circumferential surface is the key that rollers are not required to be arranged in the chain.
There are various embodiments for the pin pairs. For each inner link 10, at least one of the second side peripheral surface of the first outer pin 22a of the second pin pair and the first side peripheral surface of the second inner pin 12b is a convex curved surface that bulges outward; at least one of the first side peripheral surface of the second outer pin 22b of the first pin pair and the second side peripheral surface of the first inner pin 12a is a curved surface of a circular arc shape which bulges outward.
In a specific manner, the second side circumferential surface of the first outer pin 22a and the first side circumferential surface of the second outer pin 22b are planes; the first side circumferential surface of the second inner pin 12b and the second side circumferential surface of the first inner pin 12a are arc-shaped curved surfaces.
The second side circumferential surface of the first outer pin 22a and the first side circumferential surface of the second outer pin 22b may be curved in a circular arc shape; the first side circumferential surface of the second inner pin 12b and the second side circumferential surface of the first inner pin 12a are flat surfaces. As shown in fig. 18.
The second side circumferential surface of the first outer pin 22a and the first side circumferential surface of the second outer pin 22b may be curved in a circular arc shape; the first side circumferential surface of the second inner pin 12b and the second side circumferential surface of the first inner pin 12a are arc-shaped curved surfaces.
The cross-sections of the first outer pin 22a, the second outer pin 22b, the first inner pin 12a, and the second inner pin 12b may be identical in shape and size, and the pins may be more easily manufactured.
When the chain is used, the chain is tensioned, and for one inner chain link, the meshing surface between the first inner pin shaft and the second outer pin shaft at the first end and the meshing surface between the second inner pin shaft and the first outer pin shaft at the second end are main stress surfaces; taking the first pin pair as an example for the relative rolling between the inner pin and the outer pin, as shown in fig. 17, when the chain is bent at the first pin pair, with the first inner pin 12a as a reference, the second outer pin 22b rolls along the peripheral surface of the first inner pin 12a, and at this time, the second outer pin 22b moves relative to the first and second inner link plates.
According to the rolling pin chain, the thin-wall sleeve is changed into the pin shaft, so that the scattered wall thickness of the sleeve is concentrated, and the impact resistance of the chain is greatly improved; meanwhile, as the inner pin shaft and the outer pin shaft are in rolling friction, compared with the original hinge sliding friction of the pin shaft and the sleeve, the abrasion loss is also greatly reduced, and the shaking phenomenon and the impact generated by the shaking phenomenon are also greatly reduced.
Unless defined otherwise, all technical and/or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application relates. The materials, methods, and examples mentioned herein are illustrative only and not intended to be limiting.
Although the present application has been described in connection with specific embodiments thereof, those skilled in the art will appreciate that various substitutions, modifications and changes may be made without departing from the spirit of the application.
Claims (5)
1. A roller pin chain is used for meshing with a chain wheel and consists of a plurality of inner chain links and outer chain links which are alternately connected; wherein,
The inner link includes a first inner link plate and a second inner link plate disposed at a predetermined interval; the first end of the first inner link plate forms a first inner link plate hole; the second end of the first inner link plate forms a second inner link plate hole; the first end of the second inner link plate forms a third inner link plate hole; the second end of the second inner link plate forms a fourth inner link plate hole; the first inner link plate hole comprises a first inner pin hole and a first outer pin hole which are communicated; the second inner link plate hole comprises a second inner pin hole and a second outer pin hole which are communicated; the third inner chain plate hole comprises a third inner pin hole and a third outer pin hole which are communicated; the fourth inner link plate hole comprises a fourth inner pin hole and a fourth outer pin hole which are communicated; a first inner pin shaft is integrally fixed between the first inner pin hole and the third inner pin hole; a second inner pin shaft is integrally fixed between the second inner pin hole and the fourth inner pin hole;
The outer links include first and second outer link plates disposed at a predetermined interval; the first end of the first outer link plate forms a first outer link plate hole; the second end of the first outer link plate forms a second outer link plate hole; the first end of the second outer link plate forms a third outer link plate hole; the second end of the second outer link plate forms a fourth outer link plate hole; a first outer pin shaft is integrally fixed between the first outer link plate hole and the third outer link plate hole; a second outer pin shaft is integrally fixed between the second outer link plate hole and the fourth link plate pin hole;
For each inner chain link, a first outer pin shaft of an upstream outer chain link adjacent to the inner chain link passes through a second outer pin shaft hole and a fourth outer pin shaft hole of the inner chain link to be installed at the second end of the inner chain link, the first outer pin shaft is positioned at a first side of a second inner pin shaft of the inner chain link, the second side peripheral surface of the first outer pin shaft and the first side peripheral surface of the second inner pin shaft can be engaged together in a relatively rolling manner to form a second pin shaft pair, and the first side peripheral surface of the first outer pin shaft can slide along the peripheral surfaces of the second outer pin shaft hole and the fourth outer pin shaft hole; a second outer pin shaft of the downstream outer link, which is close to the inner link, passes through the first outer pin shaft hole and the third outer pin shaft hole of the inner link and is arranged at the first end of the inner link, the second outer pin shaft is positioned at the second side of the first inner pin shaft of the inner link, the first side peripheral surface of the second outer pin shaft and the second side peripheral surface of the first inner pin shaft can be engaged together in a relatively rolling manner to form a first pin shaft pair, and the second side peripheral surface of the second outer pin shaft can slide along the peripheral surfaces of the first outer pin shaft hole and the third outer pin shaft hole;
For each inner link, it acts directly on the teeth of the sprocket through either the first pin pair or the second pin pair;
For each inner chain link, the first side peripheral surface of the first outer pin shaft of the second pin shaft pair and the second side peripheral surface of the second inner pin shaft are arc-shaped curved surfaces, the two arc-shaped curved surfaces are positioned on the same peripheral surface, and the arc-shaped curved surfaces are consistent with the arc of the sprocket tooth part so as to ensure smooth engagement; the second side peripheral surface of the second outer pin shaft of the first pin shaft pair and the first side peripheral surface of the first inner pin shaft are arc-shaped curved surfaces, the two arc-shaped curved surfaces are positioned on the same peripheral surface, and the arc-shaped curved surfaces are consistent with the arc of the sprocket tooth part so as to ensure smooth engagement.
2. The roller pin chain of claim 1, wherein:
For each inner chain link, at least one of the second side peripheral surface of the first outer pin shaft of the second pin shaft pair and the first side peripheral surface of the second inner pin shaft is a circular arc-shaped curved surface; at least one of the first side peripheral surface of the second outer pin shaft of the first pin shaft pair and the second side peripheral surface of the first inner pin shaft is a circular arc-shaped curved surface.
3. The roller pin chain of claim 2, wherein:
The second side peripheral surface of the first outer pin shaft and the first side peripheral surface of the second outer pin shaft are planes;
The first side peripheral surface of the second inner pin shaft and the second side peripheral surface of the first inner pin shaft are arc-shaped curved surfaces.
4. The roller pin chain of claim 2, wherein:
The second side peripheral surface of the first outer pin shaft and the first side peripheral surface of the second outer pin shaft are arc-shaped curved surfaces;
the first side peripheral surface of the second inner pin shaft and the second side peripheral surface of the first inner pin shaft are planes.
5. The roller pin chain of claim 2, wherein:
The second side peripheral surface of the first outer pin shaft and the first side peripheral surface of the second outer pin shaft are arc-shaped curved surfaces;
The first side peripheral surface of the second inner pin shaft and the second side peripheral surface of the first inner pin shaft are arc-shaped curved surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323199306.8U CN221003640U (en) | 2023-11-27 | 2023-11-27 | Rolling pin chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323199306.8U CN221003640U (en) | 2023-11-27 | 2023-11-27 | Rolling pin chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003640U true CN221003640U (en) | 2024-05-24 |
Family
ID=91123237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323199306.8U Active CN221003640U (en) | 2023-11-27 | 2023-11-27 | Rolling pin chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003640U (en) |
-
2023
- 2023-11-27 CN CN202323199306.8U patent/CN221003640U/en active Active
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