CN1243088A - Revolving roll for flat-plate conveyor - Google Patents
Revolving roll for flat-plate conveyor Download PDFInfo
- Publication number
- CN1243088A CN1243088A CN 99107672 CN99107672A CN1243088A CN 1243088 A CN1243088 A CN 1243088A CN 99107672 CN99107672 CN 99107672 CN 99107672 A CN99107672 A CN 99107672A CN 1243088 A CN1243088 A CN 1243088A
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- China
- Prior art keywords
- outer shroud
- roller core
- revolving roll
- load
- bearing surface
- Prior art date
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- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
A return roller includes a roller core and an external ring. The roller core has a shaft hole formed therein at a central portion and axially extending therethrough. A shaft fixed to a conveyor frame is inserted through the shaft hole such that the roller core is rotatably supported by the shaft. The external ring is concentrically fitted onto the roller core. The outer circumferential surface of the external ring supports the carrying surface of a slat. The product of the radius of the outer circumferential surface of the external ring and the friction coefficient between the outer circumferential surface of the external ring and the carrying surface of the slat is set greater than the product of the radius of the shaft hole and the friction coefficient between the shaft hole and the shaft. The outer circumferential surface of the external ring is formed from an elastomer softer than the carrying surface of the slat.
Description
The present invention relates to a kind of flat conveyer, relate in particular to a kind of revolving roll that is used for flat conveyer, this revolving roll is suitable for being supported on the below of flat conveyer chain, and flat conveyer chain is along the backward channel operation of flat conveyer.
Flat conveyer is used to conveying object, for example PET bottle and jar.Flat conveyer comprises a conveyer frame, a drive sprocket and a flower wheel, an and flat conveyer chain, wherein drive sprocket is with near flower wheel is arranged at the relative two ends of conveyer stands longitudinal, flat conveyer chain is looped around on drive sprocket and the flower wheel along the backward channel that transports passage and bottom of conveyer upper rack, and extends between the two.
Flat conveyer chain comprises a plurality of chain links, and these chain links and flat board are integral, and hinged in the form of a ring, thereby makes platen surface outside.Flat conveyer chain is driven in the on-cycle mode, thereby the object that is placed on the fully individual dull and stereotyped end face (load-bearing surface) is transferred along transporting passage.
This flat conveyer adopts the single-revolution roller, and purpose is to prevent that slat chain is along sagging in the backward channel motion process.One is fixedly attached on the frame of conveyer, and this axle is inserted into by an axis hole, thereby revolving roll is rotatably supported on the axle, and the core that wherein said axis hole passes revolving roll extends.Revolving roll is supporting the ventricumbent load-bearing surface of the lath of dull and stereotyped conveyer chain successively.When slat chain moved, revolving roll rotated by the friction force between the outer surface that results from load-bearing surface and revolving roll.
In the working process of pallet conveyer, when a stop component make object for example jar or the PET bottle when the downstream end of transporting passage or midway location stop, follow object to be blocked in thereafter, and the bottom surface that slat chain stops up object with the load-bearing surface edge of flat board keep moving in the object back of stopping.
Like this, if the friction coefficient between load-bearing surface and the object bottom surface is bigger, and object has unsettled shape, and the load-bearing surface of the object flat board that will be moved forward drags down so.For reducing friction coefficient,, soap water can be supplied with load-bearing surface transporting in the process of object.Because the use of the PET bottle of bottom surface injustice increases, and promptly the bottom surface of PET bottle can be unsettled petal-shaped, so dull and stereotyped and chain link just can pass through to produce the whole parts that form an one of resin of smooth surface, thereby makes load-bearing surface become smooth at present.
As shown in Figure 7, when the product of μ l (friction coefficient between the load-bearing surface 1 of the flat board 2 of each chain link 3 and the circumferential surface of revolving roll 4) and r1 (radius of revolving roll 4) during less than the product of μ 2 (friction coefficient between the circumferential surface of axle 5) and r2 (radius of axis hole 6); Promptly when μ 1 * r1＜μ 2 * r2, revolving roll 4 does not rotate, and dull and stereotyped 2 slide on the circumferential surface of revolving roll 4.
If slat chain 7 slides on the circumferential surface of non-rotary revolving roll 4 for a long time, simultaneously slat chain 7 since the weight of self at the downward sagging of the upstream and downstream of revolving roll, as shown in Figure 7, so dull and stereotyped 2 load-bearing surface 1 will be recessed surperficial 1a by wearing and tearing prejudicially, as shown in Figure 8, thereby may cause dropping of object, for example have the PET bottle of unstable bottom shape.
Even the friction force between the circumferential surface that result from dull and stereotyped load-bearing surface and revolving roll than hour, the increase of revolving roll diameter also helps the rotation of revolving roll.But therefore the weight of conveyer frame also can increase.
In addition, in the moving process of slat chain,, therefore influence service conditions owing to dull and stereotyped load-bearing surface and the bump repeatedly between the revolving roll have produced noise.
The objective of the invention is to solve the problems referred to above of the traditional revolving roll that is used for pallet conveyer, and provide a kind of revolving roll of pallet conveyer, contact although exist between revolving roll and the load-bearing surface, but this revolving roll can prevent the wearing and tearing of dull and stereotyped load-bearing surface, and can reduce the noise that is produced by the bump between flat board and the revolving roll.
For achieving the above object, the invention provides a kind of revolving roll that is used for pallet conveyer, in pallet conveyer, dull and stereotyped conveyer chain transports passage and bottom backward channel transmission in the on-cycle mode along top, thereby the object that is placed on the dull and stereotyped load-bearing surface is transferred along transporting passage, and make revolving roll in the backward channel of bottom below the support plate chain.This revolving roll comprises a roller core and an outer shroud.Roller core is provided with an axis hole in the heart part therein, and this axis hole passes roller core and extends axially.The axle that is fixed on the conveyer frame inserts in the axis hole, so that roller core can be rotated to support on the axle.Outer shroud is assembled on the roller core with one heart.The external peripheral surface of outer shroud is supporting dull and stereotyped load-bearing surface.The product of friction coefficient is set to larger than the product of friction coefficient between axis hole radius and axis hole and the axle between the load-bearing surface of the radius of the external peripheral surface of outer shroud and the external peripheral surface of outer shroud and flat board.The external peripheral surface of outer shroud is made by elastic body, compares with the load-bearing surface of flat board, and this elastic body is softer.
By adopting above-mentioned friction law, when flat board was mobile, the revolving roll threaded shaft smoothly rotated, and can not skid between the load-bearing surface of revolving roll and flat board.In addition, by using the material of elastic body, make the load-bearing surface of flat board have scuffing or the worn-down function that produces that contact that prevents by load-bearing surface with the revolving roll of flat board as circumferential surface outside the outer shroud.
Therefore, can keep the flatness of the load-bearing surface of flat board, thus can keep for a long time may be because center of gravity be high the stable traffic capacity of unsettled homogeneous object.
Utilize above-mentioned elastic body also can be reduced in the impact noise between the revolving roll and flat board in the slat chain moving process as the material of circumferential surface outside the outer shroud.
Be preferably on the inner circumferential surface of the external peripheral surface of roller core and outer shroud a mate is set.Mate is interlocked mutually, thereby prevents the relative dislocation between outer shroud and the roller core.
Above-mentioned engagement features can prevent the vibration of the revolving roll that caused by flat board and the dislocation of the relative roller core of outer shroud that produces.Thereby, can increase the durability of revolving roll.
In conjunction with the accompanying drawings,, will be better understood other purpose of the present invention, feature and advantage with reference to the detailed description of most preferred embodiment, wherein:
Fig. 1 is a lateral plan, the figure shows the pallet conveyer that is equipped with the revolving roll according to the present invention;
Fig. 2 is the cutaway view along the hatching II-II of Fig. 1;
Fig. 3 is a lateral plan, the figure shows a revolving roll of the flat conveyer of the most preferred embodiment according to the present invention;
Fig. 4 is the cutaway view along the hatching IV-IV of Fig. 3;
Fig. 4 A is the guide wire of alternative shape of Fig. 4;
Fig. 4 B is the enlarged view of another part among Fig. 4;
Fig. 5 is a lateral plan, the figure shows the revolving roll according to the pallet conveyer of second embodiment of the invention, and for clarity sake, this figure has saved some parts;
Fig. 6 is the cutaway view along the hatching VI-VI of Fig. 3;
Fig. 7 shows the mode of a traditional revolving roll bearing flat plate chain;
Fig. 8 shows owing to the wearing and tearing that contact the slat chain that produces with traditional revolving roll.
With reference to accompanying drawing, will the embodiment of some optimum structure of the present invention be described.
With reference to Fig. 1, the figure shows and realize that flat conveyer of the present invention, this conveyer are used to carry for example PET bottle or jar such object of C.
This pallet conveyer 10 also is provided with at least one revolving roll 18 (being two in illustrated embodiment), and purpose is to prevent that slat chain 14 is along sagging in the backward channel R moving process.This revolving roll 18 is rotatably mounted on the horizontal shaft 19, and horizontal shaft 19 is fixedly attached on the conveyer frame 11 (Fig. 2).Revolving roll 18 is supporting the ventricumbent load-bearing surface 17 of the flat board 15 of slat chain 14.When slat chain 14 moved, revolving roll 18 rotated by the friction force between the circumferential surface that results from load-bearing surface 17 and revolving roll 18.
Shown in Fig. 3 and 4, revolving roll 18 has a structure of being made up of two parts, and in this structure, an outer shroud 21 is assemblied on the roller core 20 with one heart.Roller core 20 comprises a wheel rim 22, a boss 23 and a plurality of rib 24 that radially is provided with, and rib 24 is used to connect wheel rim 22 and boss 23.Wheel rim 22, boss 23 and rib 24 are made by the high-abrasive material integral body of high-lubricity, and these high-abrasive materials can be polyamide or polyacetals.One additional ribs 25 is arranged at the axial middle body of roller core 20, passing rib 24, thereby improves the rigidity of roller core 20.
Shown in Fig. 4 A and 4B, the annular engagement groove 21a and stepped bonding part 21b respectively with copulational protuberance 22a and the cooresponding position of stepped bonding part 22b on be formed on the inner circumferential surface of outer shroud 21.By engaging of the interlock between copulational protuberance 22a and the engagement groove 21a and stepped bonding part 22b and 21b, can prevent that roller core 20 and outer shroud 21 are separated from each other.
At this, satisfy the relation of " μ 1 * R1＞μ 2 * R2 ", wherein the friction coefficient between the load-bearing surface 17 (Fig. 1 and 2) of the external peripheral surface 27 of μ 1 expression outer shroud 21 and flat board; R1 represents the radius of circumferential surface 27 outside the outer shroud 21; Friction coefficient outside the circle wall surface of μ 2 expressions formation axis hole 26 and axle 11 (Fig. 2) of insertion axis hole 26 between the circumferential surface, its central axis hole 26 is formed on the roller core 20; R2 represents the radius of axis hole 26.
When satisfying above-mentioned relation " μ 1 * R1＞μ 2 * R2 ", the moment of the relative axle center O of friction force that produces between the load-bearing surface 17 (Fig. 2) dull and stereotyped 15 and the revolving roll 18 is greater than the moment of the relative axle center O of friction force of generation between the wall 28 of axle 11 (Fig. 2) and axis hole 26.Therefore, when slat chain 14 (Fig. 1 and 2) was mobile, revolving roll 18 can smoothly rotate around axle, and can not skid between the load-bearing surface 17 of revolving roll 18 and dull and stereotyped 15.
Fig. 5 and 6 shows the revolving roll 30 of second embodiment according to the present invention.Similar with Fig. 3 and 4 described embodiment, the revolving roll 30 of this embodiment is made up of roller core 31 and outer shroud 32, but in Fig. 5, for clarity sake, has saved outer shroud 32.
In addition, as shown in Figure 6, be formed on the inner circumferential surface of outer shroud 32 with the engagement groove 32a of copulational protuberance 33a interlock.Engagement groove 33a with the cooresponding circumferential position of groove N on have isolated part.Therefore, when outer shroud 32 was assembled on the roller core 31, these discontinuous parts engaged with groove N.Like this, not only can prevent the axial dislocation between outer shroud 32 and the roller core 31, and can prevent between the two dislocation along circumference.Thereby, make between roller core 31 and the outer shroud 32 engage such as first embodiment shown in Fig. 3 and 4 more firm.
When outer shroud 32 by two balls on the molded excircle that is formed at roller core 31 time, be formed at automatically on the inner circumferential surface of outer shroud 32 with the engagement groove 32a of copulational protuberance 33a interlock.Except the engagement features that is used for copulational protuberance 33a interlock, the structure of outer shroud 32 is identical with the revolving roll 18 shown in Fig. 3 and 4.
Make between outer shroud 32 and the roller core 31 firmly that the bonded assembly engagement features is not confined to this, as long as can prevent between outer shroud 32 and the roller core 31 vertically and any form that relatively moves along the circumferential direction all may be utilized.
If outer shroud 21,32 for example is in the same place by the welding fixed engagement with roller core 20,31, so just do not need above-mentioned engagement features. Roller core 20,31 can be moulded resin products or metal product, for example the die-cast product of aluminium.
In addition, roller core 20,31 can comprise the assembly of a plurality of different materials.For example, boss 22 can be made by the alloy of oil-containing, and other parts can be formed from a resin, and wherein boss 22 is provided with axis hole 26, is used for and the moving contact of steel axle.
Obviously, under the enlightenment of above-mentioned specification sheets, can make many modifications and variations to the present invention.Therefore, be appreciated that within the scope of the appended claims that the present invention can be different from the form of foregoing and implement.
Claims (14)
1, a kind of revolving roll that is used for pallet conveyer, slat chain is driven in the on-cycle mode along the transfer passage on top and the backward channel of bottom in pallet conveyer, thereby the object that is placed on the dull and stereotyped load-bearing surface is transported along transfer passage, revolving roll is at the downside bearing flat plate chain of bottom backward channel from slat chain, and said revolving roll comprises:
One roller core, this roller core is provided with an axis hole, and this axis hole also axially runs through the roller core extension in the middle body extension of roller core, and an axle that is fixed on the conveyer frame is inserted into axis hole, so that said roller core is rotatably supported by axle;
One outer shroud is assembled on the said roller core with one heart, and the external peripheral surface of said outer shroud is supporting dull and stereotyped load-bearing surface, and the external peripheral surface of said outer shroud is made by the elastic body softer than the load-bearing surface of flat board, it is characterized in that:
The product of friction coefficient is greater than the product of friction coefficient between axis hole radius and axis hole and the axle between the radius of the external peripheral surface of said outer shroud and the external peripheral surface of said outer shroud and the dull and stereotyped load-bearing surface.
2, the revolving roll that is used for pallet conveyer according to claim 1, it is characterized in that: said roller core is made by the high-abrasive material of high-lubricity.
3, the revolving roll that is used for pallet conveyer according to claim 1 is characterized in that: said outer shroud has 25 to 50 Shore D level hardness.
4, the revolving roll that is used for pallet conveyer according to claim 2 is characterized in that: said outer shroud has 25 to 50 Shore D level hardness.
5, the revolving roll that is used for pallet conveyer according to claim 1, it is characterized in that: its external peripheral surface of said roller core is provided with first bonding part, said outer shroud surface within it is provided with second bonding part, said first and second bonding parts are interlocked, thereby prevent the dislocation between said outer shroud and the said roller core.
6, the revolving roll that is used for pallet conveyer according to claim 5 is characterized in that: said first and second bonding parts circumferentially extend, and purpose is the relative dislocation that prevents between said outer shroud and the said roller core vertically.
7, the revolving roll that is used for pallet conveyer according to claim 6 is characterized in that: said first and second bonding parts are provided with the interruption part, and this part is used to prevent between said outer shroud and the said roller core the relative dislocation along circumference.
8, a kind of flat conveyer comprises:
One conveyer frame has formed a top transfer passage and a bottom backward channel, and this frame has at least one and is arranged at the interior horizontal shaft of said bottom backward channel;
The slat chain that constitutes hinged chain link comprises a flat board, this flat board has a load-bearing surface, the object that is transferred is placed on this load-bearing surface, said slat chain is driven in the on-cycle mode along said top transfer passage and bottom backward channel, thereby the object that is placed on the said dull and stereotyped load-bearing surface is transported along said top transfer passage;
The single-revolution roller rotatably is fixed on the said axle, and in the backward channel of said bottom from the said slat chain of following side bearing of said slat chain, said revolving roll comprises:
One roller core, this roller core have an axial centre hole, are assembling said axle in this centre hole slidably,
One outer shroud is assembled on the said roller core with one heart, and said outer shroud has an external peripheral surface, and this surface bearing the load-bearing surface of said flat board, and said external peripheral surface is made by the elastic body softer than the load-bearing surface of said flat board, it is characterized in that:
The product of friction coefficient is greater than the product of friction coefficient between the radius of roller core upper shaft hole and axis hole and the axle between the radius of the external peripheral surface of said outer shroud and the external peripheral surface of said outer shroud and the dull and stereotyped load-bearing surface.
9, pallet conveyer according to claim 8 is characterized in that: described roller core is made by the high-abrasive material of high-lubricity.
10, pallet conveyer according to claim 8 is characterized in that: said outer shroud has 25 to 50 Shore D level hardness.
11, pallet conveyer according to claim 9 is characterized in that: said outer shroud has 25 to 50 Shore D level hardness.
12, pallet conveyer according to claim 8, it is characterized in that: its external peripheral surface of said roller core is provided with first bonding part, said outer shroud surface within it is provided with second bonding part, said first and second bonding parts are interlocked, thereby prevent the relative displacement between said outer shroud and the said roller core.
13, pallet conveyer according to claim 12 is characterized in that: said first and second bonding parts circumferentially extend, and purpose is to prevent between said outer shroud and the said roller core relatively moving vertically.
14, pallet conveyer according to claim 13 is characterized in that: said first and second bonding parts are provided with the interruption part, and this part is used to prevent relatively moving along circumference between said outer shroud and the said roller core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107672 CN1243088A (en) | 1998-05-27 | 1999-05-27 | Revolving roll for flat-plate conveyor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP146309/1998 | 1998-05-27 | ||
| CN 99107672 CN1243088A (en) | 1998-05-27 | 1999-05-27 | Revolving roll for flat-plate conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1243088A true CN1243088A (en) | 2000-02-02 |
Family
ID=5272868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99107672 Pending CN1243088A (en) | 1998-05-27 | 1999-05-27 | Revolving roll for flat-plate conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1243088A (en) |
-
1999
- 1999-05-27 CN CN 99107672 patent/CN1243088A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |