CN101102948A - Motorized pulley - Google Patents

Abstract

A motorized pulley is disclosed herein. One embodiment of the pulley comprises a tube having a first end and a second end. A first end cap is located adjacent the first end of the tube, wherein the first end cap comprises at least one air hole. A motor s is located within the tube, the motor comprises a rotor and a stator, wherein the rotor is connected to the tube. A first fan is operatively connected to the tube. A first air path extends from the at least one air hole to the first fan and exits at least one air hole, wherein the first air path contacts the motor.

Description

Power operated roller

Background technology

Conveyer system is used for transporting articles between different positions.These article can be the goods of plant produced or the article that transmit in factory, DISTRIBUTION CENTRE, airport and other place.The use of delivery system comprises factory and DISTRIBUTION CENTRE.Typically, produce the factory of lot cargo in order to raise the efficiency its goods of high speed transfer of having to.Equally, typically, DISTRIBUTION CENTRE also needs to shift fast goods in order to raise the efficiency.

The speed of belt conveyor system is limited.It is unstable that load-transfer device tends to become when reaching certain high speed, and this may cause fault.This fault can make conveyer system stop, and the people that may destroy article and injure close conveyer system.

Many conveyers have to change the direction of article.Typically, direction changes by using bending delivery partly to realize.These crooked transport portions are also restricted to the speed of transporting articles.Typically, can become unstable more when be used for crooked transport condition following time as the hyper tape of conveyer.Another restriction is the wall portion that centripetal force makes article contact curve, and this makes article slow down.

Summary of the invention

The invention discloses a kind of power operated roller.A kind of embodiment of this roller comprises the sleeve pipe with first end and second end.First end cap is positioned near first end of sleeve pipe, and wherein first end cap comprises at least one pore.Be provided with motor in the sleeve pipe, this motor comprises rotor and stator, and its rotor is connected to sleeve pipe.First fan is connected to sleeve pipe with drive manner.First air by-pass passage extends to first fan from least one pore, and comes out at least one pore place, wherein first air by-pass passage contact motor.

Description of drawings

Fig. 1 is the top perspective view of the embodiment of conveyer system.

Fig. 2 be Fig. 1 ball transfer device rolling-ball unit face partial section.

Fig. 3 is the birds-eye view of cup-like portion of the rolling-ball unit of Fig. 2.

Fig. 4 is the front elevation of the cup-like portion of Fig. 3.

Fig. 5 is the birds-eye view of cap of the rolling-ball unit of Fig. 2.

Fig. 6 is the front elevation of the cap of Fig. 5.

Fig. 7 is the birds-eye view of supporting base of the rolling-ball unit of Fig. 2.

Fig. 8 is the front elevation of the supporting base of Fig. 7.

Fig. 9 is the section drawing of the conveyer system sweep of Fig. 1, has wherein removed rolling-ball unit for clarity.

Figure 10 is the flat-bed section drawing of Fig. 1, has wherein removed cooresponding rolling-ball unit for clarity.

Figure 11 is the birds-eye view of rolling-ball unit embodiment that is similar to the rolling-ball unit of Fig. 2.

Figure 12 be Figure 11 rolling-ball unit face partial section.

Figure 13 is the side cross-sectional, view of the embodiment of power operated, air cooled mode roller.

Figure 14 is the embodiment of fan that is positioned at the roller of Figure 13.

Figure 15 is the embodiment of extension of sleeve pipe that can be coupled to the roller of Figure 13.

Figure 16 is the section drawing of another embodiment of power operated, air cooled mode roller.

Figure 17 is the embodiment of a part of end housing of the roller of Figure 16.

Figure 18 is the embodiment of a part of end housing of the roller of Figure 16.

The embodiment of the sleeve pipe of the motor-driven roller of Figure 19 has many indentations on the sleeve pipe.

Figure 20 is near the roller cross-sectional view taken of second end housing, Figure 16.

Figure 21 is near the roller cross-sectional view taken of first end housing, Figure 16.

Figure 22 is the birds-eye view of the embodiment of conveyer system.

Figure 23 is the side isometric view of the embodiment of conveyer system.

Figure 24 is the birds-eye view of the acceleration device of Fig. 1.

The specific embodiment

The top perspective view of conveyer system shown in Fig. 1 100.Conveyer system 100 comprises several parts, will introduce these several parts in more detail below.Conveyer system comprises sweep 110, and sweep 110 comprises platform 112 and wall 114 again.Sweep comprises first end 116 and second end 118, and wherein article move to second end 118 from first end 116.In more detail, platform 112 comprises a plurality of ball transfer units 120, and these ball transfer units have made things convenient for moving of article.

The numerous embodiments of wall 114 has been described here.This wall helps to change the direction of the article that move along conveyer system 100.Especially, article move and significantly do not reduce its speed along the curve of wall 114.The curve of wall 114 is called as arcuate channel 126.Arcuate channel 126 makes article change to second rectilinear direction 128 from first rectilinear direction 127.According to user's needs, the equipment related with wall 114 also can increase or reduce the speed of article.In the embodiment of the conveyer system 100 of Fig. 1, this equipment is air cooled mode roller 124.In other embodiments, this equipment is to be provided with or to be arranged on wall 114 in-to-in ball transfer units along wall 114.

The embodiment of the load transfer device 100 of Fig. 1 also comprises acceleration device 130, acceleration device 130 near or be connected to first end 116 of sweep 110.Acceleration device 130 is used for quickening and/or deceleration to article.Should be noted that acceleration device 130 is a kind of embodiments that article moved to the conveyor section of sweep 110.Other parts of acceleration device 130 and conveyer system 100 will be described below in further detail.

Ball transfer unit

Because all can use ball transfer unit 120 on platform 112 and the wall 114, the explanation of conveyer system 100 will be from ball transfer unit 120.The embodiment of ball transfer unit 200 is shown among Fig. 2 in further detail.Ball transfer unit 200 is examples of a plurality of ball transfer units 120 of Fig. 1.Ball transfer unit 200 can comprise ball or spin---for example together with the ball 210 shown in the rolling-ball unit 200.The ball 210 of ball transfer unit 200 can be to rotate with respect to ball transfer unit 200 mode that describes in further detail here along any direction.Therefore, a plurality of ball transfer units 120 can support the weight of the article that are transferred among Fig. 1, and article can be moved along any direction.

From top description referring again to Fig. 1 as can be seen, a plurality of ball transfer units 120 make article---for example hand baggage---when being supported fully, also carry on ball transfer unit with the direction along the arcuate channel 126 of wall 114 and move.The wall 114 of sweep 110 forces article along arcuate channel 126, thereby changes to second rectilinear direction 128 from first rectilinear direction 127.Should be noted that only to be exemplary purpose of description, ball transfer unit 120 is shown circular structure here greatly and is illustrated.Alternately, in fact ball transfer unit 120 can form and has arbitrary shape---shape for example for cooperating required bending more suitably to select.

Referring again to Fig. 2, ball transfer unit 200 is called rolling-ball unit 200 sometimes simply, lid or cover portion 214 that it can roughly comprise cup-like portion 212 and be screw-coupled to cup-like portion 212.For example bonding other method that waits also can be used for cup-like portion 212 is fixed to cover portion 214.A pair of as shown in the figure supporting base 216A, 216B can be contained in the cup-like portion 212, and ball 210 can movably be contained among supporting base 216A, the 216B.Supporting base 216A, 216B will be described in greater detail below.

Fig. 3 and 4 illustrates in greater detail cup-like portion 212.With reference to Fig. 3 and 4, for example, cup-like portion 212 can be formed by for example metallic materials such as steel, corrosion-resistant steel or aluminium.Cup-like portion 212 can comprise first cavity 220 with annular bottom wall 222 and the circumferential side wall 224 that is formed with screw thread 226 in inside.As describe in more detail below, screw thread 226 is used for the cover part 214 among Fig. 2 is fixed to cup-like portion 212.Second cavity 230 can be provided with one heart about first cavity 220, and extends downwards from its diapire 222.Second cavity 230 can comprise annular bottom wall 232 and circumferential side wall 234 as shown.The 3rd cavity 236 can be provided with one heart about first cavity 220 and second cavity 230, and can extend downwards from the diapire 232 of second cavity 230.The 3rd cavity 236 can comprise diapire 238 and circumferential side wall 240 as shown.Extensible porose between the diapire 238 of cup-like portion 212 bottom surfaces 246 to the 3rd cavitys 236, for example tapped bore 244.

Describe some internal parts and the element of cup-like portion 212, will describe some external components and element now.A plurality of blind holes 250 can extend into cup-like portion 212 from cup-like portion bottom surface 246 so that engage spanner or other instrument.When cup-like portion 212 or rolling-ball unit 220 being made or be installed as one, can use this instrument.Can be formed with circular groove 252 on the external peripheral surface 254 of cup-like portion 212 as shown.External peripheral surface 254 can have the diameter R as marking among Fig. 4.For example, diameter R can be about 2.188 inches or about 5.56 centimetres.

Fig. 5 and 6 illustrates in greater detail cap 214.With reference to Fig. 5 and 6, for example, cap 214 can be formed by plastic material.Cap 214 can roughly comprise flange portion 260 and the ring wall part 262 of extending from flange portion 260 downwards.Flange portion 260 can comprise upper surface 264 and the lower surface 266 that is oppositely arranged, and can have diameter V.For example, diameter V can be about 2.5 inches or about 6.35 centimetres.Flange portion 260 can have the thickness W that extends between upper surface 264 and the lower surface 266.For example, thickness W can be about 0.094 inch or about 0.24 centimetre.The circumferential outer surface 270 that ring wall part 262 can comprise circumferential inner surface 268 and be oppositely arranged.Screw thread 272 can be formed on the outside face 270.As described below, screw thread 272 is used for the cap 214 into cup-like portion 212 that is spirally connected.

With reference to Fig. 6 as can be seen, cavity 276 is roughly limited by the lower surface 266 of flange portion 260 and the inside face 268 of ring wall part 262.Opening 278 is arranged in the flange portion 260, and extends between flange portion upper surface 264 and lower surface 266.In some embodiments, opening 278 is a concentric tapered opening 278.As following more substantial description, when air pressure was applied to the rolling-ball unit 200 of Fig. 2, ball can pass opening 278 and extend.

Supporting base 216A and the 216B of Fig. 2 will be described now.Fig. 7 and 8 has further described supporting base 216A.Should be noted that supporting base 216A and 216B can be basic identical (though installing along opposite direction as shown in Figure 2).Therefore, only describe supporting base 216A here in detail, should be understood to supporting base 216A and 216B here and go up identical feature and will be expressed as and have suitable letter sign A or the similar numeral of B.

For example, supporting base 216A can be formed by oil immersion timber such as maples.Although for example in order to be easy to work etc. and be preferably timber,, also can use equivalent material at present as long as have enough frictional behaviours described here.Supporting base 216A can comprise the first annular end face 280A and the second annular end face 282A that is oppositely arranged.Supporting base 216A can further comprise the external peripheral surface 284A with the diameter P that marks.For example, diameter P can be between about 1.362 inches and 1.374 inches or between about 3.46 centimetres and 3.49 centimetres.As shown in the figure, external peripheral surface 284A is extensible between the first annular transition face 286A and the second annular transition face 290A.The first annular notch 292A can be limited by the first reduction diameter surface part 294A that extends between first annular end surface 280A and the first annular transitional surface 286A.The second recess 296A can be limited by the second reduction diameter surface part 280A that roughly extends between second annular end surface 282A and the second annular transition face 290A.

Cavity 300A can be arranged at supporting base 216A inside, and cavity 300A is partly limited by surperficial 302A.Surface 302A can comprise cylinderical surface part 304A and spherical surface part 306A again.Cylinderical surface part 304A can extend about 0.063 inch or about 0.16 centimetre apart from Q from second annular end surface 282A, and has diameter X.As will further discussing here, in order to reduce the air loss of system, diameter X is chosen as the diameter Y (Fig. 2) that only is a bit larger tham ball 210.For example, diameter X can be about 1.006 inches or 2.56 centimetres, and diameter Y can be about 1.000 inches or about 2.54 centimetres.

Cylinderical surface part 304A defines the circular open 310A that is arranged on one heart in the 282A of second annular end surface.Spherical surface part 306A can radius be that the shape of the part of about 0.503 inch or about 1.28 centimetres spherical surface forms.Spherical surface part 306A is defining circular open 312A with 280A intersection, first annular end surface.

Described the parts of the rolling-ball unit 200 of Fig. 2, now rolling-ball unit has been described as a whole.Refer again to Fig. 2, above-mentioned parts can be assembled by following.As shown in the figure, O shape circle 320 can be placed in the 3rd cavity 236 of cup-like portion 212, thereby it not only abuts against cup-like portion diapire 238 but also abut against circumferential side wall 240 (Fig. 4).O shape circle 322 can be placed in second cavity 230 of cup-like portion 212, thereby it not only abuts against glass annular bottom wall 232 but also abuts against circumferential side wall 234, and it illustrates in greater detail in Fig. 4.Next, supporting base 216B can be installed in second cavity 230, thereby circular open 312B (Fig. 7-8) outward, as shown in the figure.Install in this way, O shape circle 322 will be accommodated in the first annular notch 292B of supporting base 216B.Then, O shape circle 324 can partly be placed in the annular notch 296B of supporting base 216B.

Ball 210 can partly be placed in the cavity 300B of supporting base 216B at least then.Then supporting base 216A can along with being installed in the opposite direction on the ball 210 of supporting base 216B (that is, supporting base 216A is mounted to and makes that circular open 312A (Fig. 7-8) is towards down).After the installation bearing seat 216A, the annular surface 282A of supporting base 216A can contact with the surperficial 282B of supporting base 216B substantially by this way.The layout of supporting base 216A and 216B makes O shape circle 324 be positioned at recess 296A and the 296B of supporting base 216A and 216B respectively.

O shape circle 326 can be installed in the recess 292A of supporting base 216A at least in part.Alternately, O shape is enclosed in the cavity 276 of the cap 214 that can be arranged on Fig. 6.Engage with the screw thread 226 of cup-like portion 212 (Fig. 4) by the screw thread 272 with cap 214 (Fig. 6) then, cap 214 can be installed on the cup-like portion 212.More specifically, the cap 214 into cup-like portion 212 that can be spirally connected.As shown in Figure 3, O shape circle 328 can be installed into the groove 252 of cup-like portion.

Continuation is in operation with reference to Fig. 2, and ball 210 can move between higher position 332 and lower position 336 along the direction that arrow 330 marks.As can be seen, when higher position 332, the opening 312A of ball 210 contact supporting base 216A, when lower position 336, the opening 312B of ball 210 contact supporting base 216B (Fig. 7-8) also can contact O shape circle 320.

The platform of sweep

The platform 112 of the sweep 110 (Fig. 1) of conveyer system 100 will be described now.Should be noted that and will describe several different embodiments of flat-bed, these embodiments comprise the embodiment of rolling-ball unit 120 recessed platforms 112 and the embodiment that rolling-ball unit 120 is stretched out from platform surface.Sweep 110 will be described in more detail after the description of finishing motor-driven roller.

Fig. 9 is the section drawing of the part of platform 112.As shown in Figure 9, platform has upper surface 348 and lower surface 349.Refer again to Fig. 1, platform 112 has hole or the opening that a plurality of its sizes can be held rolling-ball unit 120.Opening 350 other opening in can illustration platform 112.For the sake of clarity, remove cooresponding ball and only show opening 350.As can be seen from Figure 9, opening 350 can comprise the through hole 352 that extends through platform 112.Hole 352 comprises counterbore part 354.Hole 352 can be limited by the circumferential surface 356 with diameter S, and counterbore part 354 can limit by the circumferential surface 358 with diameter T and by annular lower surface 360.Annular lower surface 360 can anomaly platform 112 upper surface 348 1 segment distance U.

With reference to the rolling-ball unit 200 of Fig. 2, the diameter S of through hole 352 can be a bit larger tham the diameter R (Fig. 2) of cup-shape member outside face 254 in addition.Therefore, when the cup 212 of rolling-ball unit 200 was installed in the opening 350, cup-like portion 212 can easily be installed into the through hole 352 of platform 112.The diameter T of counterbore part 354 can be a bit larger tham the diameter V of cap flange 264 (Fig. 5).As described in greater detail, diameter V makes rolling-ball unit 200 be convenient to inject opening 350.

For the rolling-ball unit 200 with Fig. 2 is installed into opening 350, can at first rolling-ball unit 200 be placed on the opening 350, mobile along being directed downwards shown in the arrow among Fig. 9 362 then, rolling-ball unit cup-like portion 212 is moved by the through hole 352 of opening 350.This moves downward the annular lower surface 360 that the lower surface 266 that lasts till rolling-ball unit cap 214 (Fig. 2 and 6) contacts counterbore part 354.In this case, O shape among Fig. 2 circle 328 will be crushed between the circumferential surface 356 of the outside face 254 of cup-like portion 212 (Fig. 3 and 5) and through hole 352, thereby rolling-ball unit 200 is remained in the opening 350.O shape circle 328 also can be pressed between the groove 252 and circumferential surface 356 of outside face 254.Alternately, rolling-ball unit 200 can remain in the opening 350 by any traditional approach.

Other embodiment of installing comprises and is spirally connected or otherwise rolling-ball unit is attached to platform 112.In some embodiments, cap 214 is integral on the platform.Cup-like portion 212 can be spirally connected or otherwise be attached to cap 214 then.

The thickness W of the rolling-ball unit flange 260 of Fig. 6 can be basic identical with the degree of depth U of counterbore part 354; Thereby, when as above-mentioned mode when installing, the upper surface 264 of rolling-ball unit flange 260 will with the upper surface 348 basic coplanes of platform 112.

Figure 10 illustrates the alternative arrangement mode of rolling-ball unit 200 being put into platform 112.Among Figure 10, illustrate in the opening 350 that rolling-ball unit 200 is installed in platform 112.For illustrative purposes, platform 112 illustrates with the form of section, and that rolling-ball unit 200 does not have is shown in section.Remaining opening can form with the essentially identical mode of following description in the platform 112.

As shown in Figure 9, the through hole among Figure 10 352 can pass completely through platform 112.Yet in the embodiment of Figure 10, the counterbore part 354 that is shown among Fig. 9 can be saved.With reference to Figure 10, through hole 352 can be limited by the circumferential surface 356 with diameter S.The diameter S of through hole 352 can be a bit larger tham the diameter R (Fig. 3) of cup-shape member outside face 254.The distance that the thickness Z of platform 112 may be selected to be between the lower surface 266 with O shape circle 328 and cap 214 is identical.In some embodiments, thickness Z can be a bit larger tham the distance between the lower surface 266 of O shape circle 328 and cap 214.

For rolling-ball unit 200 is installed in the opening 350, can at first rolling-ball unit 200 be arranged on the opening 350, and O shape circle 328 is removed.Can make rolling-ball unit cup-like portion 212 move along the mobile rolling-ball unit 200 that is directed downwards shown in the arrow among Figure 10 362 then by the through hole 352 of opening 350.This downward motion lasts till the upper surface 348 of the lower surface 266 contact platforms 112 of rolling-ball unit cap 214.Under this condition, the circular groove 252 of Fig. 4 will place below the lower surface 349 of platform 112 just.Be installed in the groove 252 by below platform 112, O shape circle being slipped over cup-like portion 212 then along direction 364.In case O shape circle is installed in kind of a mode, it will prevent that rolling-ball unit 200 from moving along direction 364, thereby rolling-ball unit 200 is securely locked in place.The edge that should be noted that rolling-ball unit cap 214 can tilt slightly so that article moving on platform 112.

The operation of rolling-ball unit 120 in the sweep 110 of conveyer system 100 among Fig. 1 will be described now.Rolling-ball unit 120 will be described in conjunction with the rolling-ball unit 200 of Fig. 2.Obviously as can be known, the ball 210 of Fig. 2 can move between higher position 332 and lower position 336.Thereby when ball during in higher position 332, sizable part of ball 210 will be stretched out on the upper surface 348 of platform 112.Yet when ball 210 was positioned at lower position 336, ball had only relatively little part to be higher than on the surface 348 of platform 112.In some embodiments, ball 210 is lower than the upper surface 264 of rolling-ball unit cap 214.

The compressed-air actuated feeding mechanism that schematically marks with Reference numeral 370 among Fig. 2 can be connected to the hole 244 in the cup-like portion 212 in a conventional manner.Being connected among Fig. 2 between air supply device 370 and the hole 244 is schematically illustrated by Reference numeral 372.As can be seen, when not supplying pressurized air, because gravity ball 210 will be placed in lower position 336.Yet when the pressurized air at the enough pressure of supply, ball 210 will be pushed to higher position 332.In this higher position, ball 210 is the opening 312 of supporting base 216A among the sealed picture 7-8 effectively, and prevents that pressurized air from losing in a large number from system.

Have been found that as mentioned above when ball 210 was positioned at higher position 332, ball 210 can support the travelling load of conveyer system 100 effectively, for example moved past the article of the sweep 110 of Fig. 1.As can be seen, when support loads in this way, the power that makes progress on the ball 210 is provided by air pressure fully, thereby need not and mechanical contacts such as spring, cylindrical bearing, otherwise may produce the friction of increase, thereby produces heat and wearing and tearing.Therefore, rolling-ball unit 220 is can at high speed articles conveyed and can not produce tangible wearing and tearing or heat.

According to factors such as weight, can select and adjust to be applied among Fig. 1 the air pressure on each rolling-ball unit 120 on the platform 112 such as each article that are transferred.Another standard that is applied to the air pressure of rolling-ball unit 120 is the interval of rolling-ball unit 120 in the platform 112, makes to supply the enough power that makes progress with the article on the surface 48 of support platform 112.Yet having been found that even ball 210 is forced to into lower position 336, the air pressure of supply also will help to reduce the wipe contact between ball 210 and the low supporting base 216B, and therefore reduce to be applied to the friction drag of the travelling load that is transferred.

It should be noted that, if the midway location of ball 210 between higher position 332 and lower position 336, because ball 210 neither contacts also with upper support seat opening 312A and do not contact with lower support seat opening 312B, will can not form sealing in the rolling-ball unit 200.Therefore, in this case, some pressurized airs will be overflowed from ball transfer unit 200.Yet the amount that has been found that the effusion air can be ignored relatively, as long as keep very little tolerance according to foregoing mode between the diameter Y of the diameter X of supporting base opening 300A (Fig. 8) and ball 210 (Fig. 2).Can find further that also the air quite in a small amount of overflowing in this case helps to cool off in an advantageous manner ball transfer unit 200.Oil can be added to pressurized air, thus effusion air lubrication rolling-ball unit 120.

Referring again to Fig. 2, O shape circle 320 is used for reducing and begins ball required compressed-air actuated amount when lower position 336 moves to higher position 332.This realizes by the amount that reduces the air that contacts ball 210 when ball 210 is positioned at lower position 336.

Use together with the curve or the turning part of conveyer system although should be noted that rolling-ball unit 120 described herein, it also can easily be used for the straight line conveying if desired.Can this embodiment be described in more detail about acceleration device 130 below.

Though disclosed herein is compressed-air actuated use, should be noted that the gas (for example nitrogen) of other form can use alternatively.In addition, the fluid of other form (for example liquid such as water) also can use alternatively.As mentioned above, gas can contain oil, oil lubrication ball transfer device 120.

Describe some embodiments of rolling-ball unit 120, will describe other embodiment of rolling-ball unit 120 now.The birds-eye view of the embodiment of rolling-ball unit 380 is shown among Figure 11.The packing ring 384 that has increase except rolling-ball unit 380 enters the rolling-ball unit 380 to prevent chip, and rolling-ball unit 380 is similar to the rolling-ball unit 200 of Fig. 2 and relevant drawings substantially.

Packing ring 384 can---for example be generally used for making the material of load-transfer device or belt conveyer---by flexible material and make.Packing ring 384 can have the hole 386 that is formed at wherein, wherein the extensible hole 386 of passing of the part of ball 210.Packing ring 384 also can have the excircle 388 that is positioned at below the rolling-ball unit cap 214.In this structure, packing ring 384 is held or otherwise is fastened on the suitable position between other parts of rolling-ball unit cap 214 and rolling-ball unit 380.As described in more detail below, packing ring can always be kept in touch with ball 210, even in ball 210 falls into into rolling-ball unit 380.Therefore, packing ring 384 prevents that fragment from entering rolling-ball unit 380.

The partial cross section that faces of the rolling-ball unit 380 of Figure 11 is illustrated among Figure 12.Should be noted that Figure 12 is similar to Fig. 2 substantially, wherein ball 210 is positioned at lower position 336 and packing ring 384 is included in wherein.In the embodiment of Figure 12, packing ring 384 is clamped between rolling-ball unit cap 214 and the supporting base 216A.As shown in Figure 12, when ball 210 falls into into or is positioned at lower position 336, packing ring 384 contact balls 210.This contact preventing chip enter rolling-ball unit 380 and influence ball 210 and supporting base 216A, 216B between contact.

Should be noted that the rolling-ball unit 380 of Figure 12 has to retrofit with respect to the rolling-ball unit 200 of Fig. 2 in order to hold packing ring 384.For example, in order to hold packing ring 384, the opening 278 in the rolling-ball unit cap 214 is had to bigger.Rolling-ball unit cap 214 also can have the sunk part 390 that size can be held packing ring 384.Sunk part 390 can be used to securely keep packing ring 384 and does not damage packing ring 384.

As mentioned above, packing ring 384 helps to prevent that chip from entering rolling-ball unit 380.When ball 210 falls into in the rolling-ball unit 380, packing ring 384 contact balls 210, this prevents that chip from entering rolling-ball unit 380.When ball 210 rose, packing ring 384 was enough crooked keeping and the contacting of ball 210, but only the rotation of ball 210 was had the adverse effect of minimum.Therefore, packing ring 384 remains on chip the function that does not influence ball 210 outside the rolling-ball unit 380.

Other embodiment of rolling-ball unit comprises the size that changes ball.For example, the most handy bigger ball of some heavier load transmits, and the most handy less ball of lighter load transmits.Supporting base in the rolling-ball unit can change with ccontaining different big or small balls with other parts.

Roller

Referring again to Fig. 1, can have a plurality of rollers 124 on the wall 114, wherein some or all rollers 124 can be for power operated.In some embodiments, roller is motor-driven, air cooled mode roller.Should be noted that roller 124 vertically installs, this mounting means can cause that traditional filling type roller is from the lower end leakage of oil.

Disclosed herein is multiple motor-driven, air cooled mode roller.Roller is used to provide the surface of revolution that can be used for multiple purpose.For example, surface of revolution can be used for factory or warehouse with mobile goods or article, for example above-mentioned article.Motor in the roller can rotate the outside face of roller.Yet motor produces heat, and these heats must be eliminated so that the roller normal operation.Traditional motor-driven roller is taken away heat with oil from motor.This filling type roller is often very heavy and need to safeguard.For example, from roller, spill, need the sealing member in the maintenance roller in order to prevent oil.When moving vertically, traditional roller can not normally move.As described below, roller disclosed herein can move vertically.The required maintenance of roller disclosed herein also is less than traditional motor-driven roller.

The example of the embodiment of motor-driven, air cooled mode roller 400 is shown among Figure 13, and Figure 13 is the side cross-sectional, view of roller 400.Roller 400 comprises housing or the sleeve pipe 404 with respect to stator axis 406 rotations or rotation.In the practical application, stator axis 406 is fixed on the object such as framework, and sleeve pipe 404 is with respect to stator axis 406 rotations.With reference to Fig. 1, stator axis 406 can be fixed to wall 114 or the solid components related with it.As following more detailed introduction, rotor shaft can be with respect to stator axis 406 rotations.Rotor shaft is connected to sleeve pipe 404, thereby sleeve pipe 404 rotates with rotor shaft.

The two ends of sleeve pipe 404 are covered or cover by first end cap 410 and second end cap 412.Several embodiments of end cap will be described here.End cap 410,412 is connected to sleeve pipe 404.As described in more detail below, stator axis 406 extensible mistake first end caps 410.Has pore 416 in first end cap 410.As described below, pore 416 makes air can flow to sleeve pipe 404.Other pore 418 is used for making air to discharge from sleeve pipe 404.Air-flow illustrates with Reference numeral 420.Some other embodiments can be implemented and describe below to other structure that should be noted that air-flow.Also describe in more detail as following, bearing and miscellaneous equipment can be arranged in end cap 410,412, so that sleeve pipe 404 can be with respect to stator axis 406 and the rotation of other erecting equipment.

Sleeve pipe 404 inside are air deflection means 422, motor 426 and fan 430.Motor 426 is used for respect to stator axis 406 rotors, and rotor makes sleeve pipe 404 with respect to stator axis 406 rotations.Be shown in motor 426 among Fig. 1 and represent the housing parts of motor 426.Housing parts keeps motionless with respect to the sleeve pipe 404 of rotation.Air deflection means 422 with air deflection to the space 434 between motor 426 and sleeve pipe 404 inside.Some embodiments of roller 400 do not comprise inflector assembly 422.Air flows through motor 426 in some embodiments.Fan 430 is used to make air to flow through sleeve pipe 404.

The embodiment of fan 430 is shown among Figure 14.The fan 430 of Figure 14 is lateral plans, and wherein air-flow 420 flows out from the side of fan 430.Air-flow 434 can enter the part of the fan 430 at the top that is expressed as Figure 14.The rotor of the motor 426 of Figure 13 is connected to the middle body (not shown) of fan 430 so that its rotation.Should be noted that in the roller 400 and can use other fan structure.

The embodiment in the hole 418 of Figure 13 is shown among Figure 15.As shown in figure 15, hole 418 can be oval.In addition, hole 418 can be incorporated in the extendible portion 446 that extends from the sleeve pipe 404 of Fig. 1.For example, extendible portion 446 can be made into sleeve pipe 404 and separates.Extendible portion may be attached to sleeve pipe 404, and second end cap 412 of Figure 13 may be attached to extendible portion 446.In other embodiments, the hole 418 that comprises the elliptical aperture of Figure 15 is fabricated directly in the sleeve pipe 404.

Referring again to Fig. 1, to describe as top institute is simple, stator 406 keeps motionless at the run duration of motor 426, and can be connected to motor 426 to keep housing motionless at run duration.Motor 426 can make has changeed 440 rotations.Rotor 440 can be along the axis setting identical with stator 106.Rotor 440 is connected to fan 430 and sleeve pipe 404 and rotates by motor 426 as mentioned above.Therefore, fan 430 rotates along with the operation of motor 426, and helps cooling motor 426.

Second end cap 412 can have the axle 441 from its extension.When operation axle 441 can move and can be used for fixing roller 400 with respect to sleeve pipe 404 (and second end cap 412).With reference to Fig. 1, axle 441 can be fixed to wall 114 with roller 124 simply.Bearings etc. can be used for being connected between axle 441 and the wall 114.

Describe the parts of roller 400, will describe the operation of roller 400 now.

In the embodiment of the roller 400 of Figure 13, stator 406 extends through first end cap 410 and is connected to motor 426 or more specifically is connected to housing, as shown in figure 13.Therefore, the counterrotating sleeve pipe 404 of part that the time is shown in the motor 426 among Figure 13 in operation keeps motionless.Bearing 444 grades are between first end cap 410 and stator 406, and it makes the end cap 410 of winning can not produce too much friction with respect to stator 406 rotations.

When motor 426 operations, rotor 440 rotations.Because fan 430 is attached to rotor 440, so fan 430 and rotor 440 rotate together.Rotor 440 is connected to second end cap, 412, the second end caps 412 and also is connected to sleeve pipe 404.Thereby when rotor 440 rotations, fan 430 and sleeve pipe 404 also rotate.The fan 430 of rotation makes windstream through gas channel 416.In one embodiment, by air exhaustion has been realized high efficiency to sleeve pipe 404 outsides rather than second end cap.Thereby motor 426 is by air cooling.In other embodiments, air can be discharged from second end cap 412.Should be noted that first end cap 410 can be also along with sleeve pipe 404 rotates together.

Describe some embodiments motor-driven, the air cooled mode roller, will describe other embodiment now.

The section drawing of second embodiment of motor-driven, air cooled mode roller 450 is shown among Figure 16.Roller 450 comprises roller shell or sleeve pipe 454, and sleeve pipe 454 is with respect to 456 rotations of roller axle.Roller 450 comprises first end cap or first end housing 460 and second end cap or second end housing 462.First end housing 460 and second end housing 462 all are attached to sleeve pipe 454.First end housing 460 can have the pore 466 that extends through wherein.Equally, second end housing 462 can have the pore 466 that extends through wherein.

The embodiment of the part of end housing is shown among Figure 17.The end housing part of Figure 17 not only can be used for first end housing 460 but also can be used for second end housing 462.The view of Figure 17 is to observe from outside to inside.Pore 466 is separated by part flow arrangement 467, and part flow arrangement 467 is in order to circulation or mixing air.Therefore, hole 466 can be used for sucking and discharging cold air.Part flow arrangement 467 also is used as the structure member of end housing 460.As described above, Figure 18 is the view of the end housing part of Figure 17 of observing outward from inside pipe casing.End housing 460 also can have bearing etc. to support axle and the equipment that the conveyer 450 of Figure 16 is fixed to wall 114.

The sleeve pipe 454 of Figure 16 can have the indentation (not shown in Figure 16) that is formed at wherein.In one embodiment, indentation roughly extends between first end housing 460 and second end housing 462.In one embodiment, indentation is about 3/8 inch wide, about 0.001 inch dark, and separate with about 3/8 inch interval.Indentation is used for increasing sleeve pipe 454 exterior friction coefficient, and this coefficient is used for the ability of reinforcing sleeve mobile article.Indentation also causes the air whirl of sleeve surface, and the transmission that this has strengthened the heat of sleeve surface has improved the cooling performance of roller 450.

Another embodiment of indentation is shown among Figure 19, and it is sleeve pipe 454 exterior embodiments.Indentation 468 in a row extends around sleeve pipe 454.Indentation can be similar to above-mentioned indentation significantly, can carve the into surface of sleeve pipe 454 by annular knurl or alternate manner.

Describe some external components of the roller 450 of Figure 16, will describe internal part now.The enlarged view of roller 450 parts of close second end housing 462 is shown among Figure 20.Roller axle 456 extensible second end housings 462 that pass.Cable 470 as described below can pass roller axle 456 to supply electric power to motor.Electric power can be by the supply of AC inverter, and the operation that the AC inverter is opposite to roller 450 in-to-in motors provides a series of control.Bearing 472 grades can be between second end housing 462 and roller axle 456.Bearing 472 makes second end housing 462 can not produce too much friction with respect to 456 rotations of roller axle.In one embodiment, bearing 472 is ball bearing of main shafts.Yet other bearing construction also can use to replace ball bearing of main shaft.Therefore, as mentioned above, second end housing 462 and sleeve pipe 454 can be with respect to 456 rotations of static roller axle.

Enlarged view near roller 450 parts of first end housing 460 is shown among Figure 21.First end housing 460 is connected to motor drive shaft 473.As described below, motor drive shaft 473 rotates with revoling tube 454 with respect to the roller axle.First end housing 460 can comprise shaft adapter 474, and shaft adapter 474 is suitable for holding the end of motor drive shaft 473.Shaft adapter 474 is integrally formed to or otherwise is connected to first end housing 460.In one embodiment, pin 476 extends through shaft adapter 474 and motor drive shaft 473 with link.

First end housing 460 can also comprise with respect to the motionless shaft-cup 480 of first end housing, 460 maintenances.Shaft-cup 480 can be connected with first end housing 460 by bearing 482.For example, bearing 482 can be ball bearing of main shaft or other traditional bearing.Thereby when the remainder rotation of first end housing 460, shaft-cup 480 parts of first end housing 460 can keep motionless or keep motionless.As described in greater detail, shaft-cup 480 can be used to roller 450 is fixed to the wall 114 of Fig. 1.Shaft-cup 480 can comprise axle 483, and axle 483 is fixed to shaft-cup 480 by means of pin 484.Therefore, axle 483 can be used for roller 450 is fixed to the wall 114 of Fig. 1.

Referring again to Figure 16, motor 488 is positioned at sleeve pipe 454.Following looking like stated, and motor 488 makes sleeve pipe 454 with respect to 456 rotations of roller axle.Motor 488 comprises motor drive shaft 473, housing 490, stator 494 and rotor 456.Housing 490 comprises first motor cover 498 and second motor cover 500, and they are fixed to housing 490.Stator 494 is attached to housing 490, and rotor 496 is connected to motor drive shaft 473.During motor 488 operations, rotor 496 is with respect to stator 494 rotations, and rotor 496 causes motor drive shaft 473 rotations.

First motor cover 498 can be included in bearing 504---and ball bearing of main shaft for example, this bearing is connected between first motor cover 498 and the motor drive shaft 473.Bearing 504 makes motor drive shaft 473 can not produce too much friction with respect to 498 rotations of first motor cover.Should be noted that motor drive shaft 473 extends through first motor cover 498.

Second motor cover 500 comprises joint 509, and joint 509 is suitable at one end holding roller axle 456, connects motor drive shaft 473 at the other end.The joint 506 of second motor cover 500 is attached to the roller axle by pin 508 or other device.Thereby the housing 490 of motor 488 keeps motionless with respect to roller axle 456.Bearing 512---for example ball bearing of main shaft---is connected between joint 506 and the motor drive shaft 454, makes motor drive shaft 473 and can not produce too much friction with respect to joint 506 rotations.

First fan 516 and second fan 518 may be attached to motor drive shaft 473.For example, fan 516,518 can be for being shown in the radial fan among Figure 14.Should be noted that for example other fan structure such as axial flow fan also can be used in the roller 450.In the embodiment of the roller 450 of Figure 16, fan 516,518 is near stator 494 and rotor 496, and this has strengthened the cooling performance of fan 516,518.In other embodiment, fan 516,518 can be positioned at other position of sleeve pipe 454.Fan 516,518 is in order to guiding windstream warp and/or flow through motor 488 with cooling motor 488.In one embodiment, fan 516,518 makes the motor part cocycle that air marks at Reference numeral 520 and 524.

Roller 450 also can comprise blower-casting, and they are called first blower-casting 528 and second blower-casting 530.Blower-casting 528,530 can the integrally formed extension 446 that also can be similar to or be same as Figure 15 to motor shell 490.Blower-casting 528,530 can comprise a plurality of pores 534, and the air-flow that pore 534 produces for fan 516,518 facilitates.In a kind of embodiment, as shown in figure 15, hole 534 is oval.The air-flow that is produced by fan 516,518 can extend between first and second housings 460,462.In other embodiments, extend between one or two end housing that air-flow can be in being formed at sleeve pipe and hole (not shown).For example, the hole can form near one or two fan 516,518.

In another embodiment, air-flow is marked by Reference numeral 540.About first fan 516, air is from the regional inspiration near first end housing 460.Some air admissions are to the part 520 of motor 488.First fan 516 produces vacuum in zone 520, cause air inerchange.Thereby motor 488 is cooled.Fan 516 dischargings are near the air of sleeve pipe 454, and air flows through near first end housing 460 there.The part flow arrangement 467 of Fig. 8 causes the air inerchange inside and outside the sleeve pipe 454.Thereby, can enter and flow along air flue 540 from the outer cold air of sleeve pipe.Simultaneously, the hot gas of being discharged by first fan 516 can be discharged from sleeve pipe 454.Cooling about second fan 518 can be carried out in a similar fashion.Should be noted that air-flow can be also through between sleeve pipe 454 and the rotor 496, to improve the cooling of motor 488.

Should be noted that roller 450 is examples of the embodiment of motor-driven, air cooled mode roller, also exists other embodiment.For example, roller 450 can have single or multiple fans, rather than two fans 516,518 shown in Fig. 4.In other embodiments, this fan or a plurality of fan can be positioned at the different zone of sleeve pipe 454.For example, a fan can be positioned near the end housing place.

Describe the embodiment of roller 450, will describe the operation of roller 450 now.In brief, roller 450 green phases move for roller axle 456 revoling tubes 454.Roller 450 can be mounted to framework (not shown in Figure 13) or other rock-steady structure, for example wall 114 of Fig. 1.More particularly, axle 482 and roller axle 456 (or attached thereon equipment) can be fastened to framework or other rock-steady structure.Because roller 450 is air-cooled,, and unlike traditional oils cold type roller, can not normally move at vertical position so it can vertically be installed.The roller of oil injection type leaks when vertically installing easily.

Electric power is supplied to motor 488 by cable 470, causes that motor 496 is with respect to stator 494 rotations.Because stator 494 is motionless or otherwise is fastened to framework, so rotor 496 rotations, this causes motor drive shaft 473 rotations.First end housing 460 is attached to motor drive shaft 473 by shaft adapter 474, therefore, and sleeve pipe 454 rotations when motor drive shaft 473 rotations.Thereby Figure 17 and 18 part flow arrangement 467 also rotate.Fan 516,518 is attached to motor drive shaft 473, so they also rotate during motor drive shaft 473 rotation.Therefore, when motor 488 operations, the fan 516,518 of rotation makes air pass through above-mentioned air flue cooling motor 488.

Conveyer system

Describe rolling-ball unit and roller, and simply described the conveyer system 100 of Fig. 1, will describe conveyer system 100 in more detail now.Should be noted that below acceleration device 130 will be described in further detail.Below description based on Figure 22, Figure 22 is the birds-eye view of embodiment that does not have the conveyer system 100 of acceleration device 130.

As mentioned above, roller 124 can be used for conveyer system to transmit article, for example product.In one embodiment, a plurality of rollers 124 article of being used for moving along first direction are sent to second direction.Conveyer system 100---more specifically is sweep 110---moving direction of article 750 is changed to second direction 128 from first direction 127.

As shown in figure 22, conveyer system 100 is related with first conveyer 760, and first conveyer holds the article that move along first direction 127.Sweep 110 changes to second direction 128 to transfer to second conveyer 762 with the direction of article 750.First conveyer 760 can be the acceleration device 130 of Fig. 1.

Sweep 110 comprises the roller 124 of a plurality of vertical installations.Roller 124 can be installed to form arc or curve, and these arcs or curve limit arcuate channel 126.The layout of roller 124 defines the radius of arcuate channel 126.In one embodiment, 31 rollers 124 are used for sweep 110.In order to improve the illustrative of sweep 110, only show less roller 124 among Figure 22.Be in operation, at least one roller that is called as roller 766 rotates so that article 750 move.In the embodiment shown in Figure 22, the roller of roller 750 and any other rotation rotates in the counterclockwise direction.

Should be noted that the radius that can select arc and roller 124 diameter so that article 750 when sweep 110 moves to the obstruction minimum of article 750.For example, can select above-mentioned radius and diameter to make article 750 contact roller 124 in the surface of the direction that is basically parallel to article 750.Thereby article 750 will be promoted by roller 124 rather than collide with roller 124.

With reference to Fig. 1, sweep 110 can comprise framework 768 etc. simply, and roller 124 is attached to framework 768.More specifically, roller axle 456 and/or shaft-cup 480 are attachable to framework 768.This attached roller 124 that makes can be with respect to framework 768 rotations.In order to illustrate purpose, this framework is not included among Figure 22.

Be in operation the surface 348 of the article 750 contact platforms 112 that move at first conveyer, 760 upper edge first directions 127.During article 750 were on surface 348, rolling-ball unit 120 made the minimum that is reduced to of article 750 speed.Article 750 also contact the roller 124 of rotation, and roller 124 has made things convenient for article 750 maintenances, increase maybe may reduce its speed.The structure of the roller 124 in the arc makes article 750 redirect to second direction 128 from first direction 127.The article 750 that the change of direction is represented by the dotted line that moves between position 1 and position 3 illustrate.Moved by second conveyer 762 after the direction of article 750 changes to second direction 128, second conveyer is along second direction 128 mobile articles 750.

As above plain statement has one at least in rotation in the roller 124 when article 750 enter sweep 110.Speed when the speed of roller 124 rotation can determine that article leave sweep 110.For example, when article 750 entered sweep 110, the speed of the comparable article 750 of the speed of roller 124 was fast.Roller 124 is used for quickening to article 750 like this.Similarly, when article 750 entered sweep 110, the speed of roller 124 can be slower than the speed of article.In some embodiments, a plurality of rollers 124 or at least one roller speed when entering sweep 110 with article equates.At least one roller is motor-driven roller as mentioned above, and all the other rollers can be simple rollers and do not have motor.For example, place the roller 124 on the wall 114 to be chosen as power operated or non-motor-driven roller.The quantity that reduces motor-driven roller has reduced the cost of conveyer 110.

In some embodiments, conveyer 100 can have a plurality of flexibilities of extending from framework 772 and is with 770.At conveyer 100 run durations, article are gone back contact zones 770 except that the contact roller.Be with 770 article are compressed against on the roller 124, this keeps article 750 not flick from roller 124.By article 750 are abutted against roller 124, the speed of article was kept more stablely when article move the sweep 110 of conveyer 100.More particularly, the speed of article 750 equals the speed of the roller 124 that rotates more approx, because article are urged against the roller 124 of rotation.Band can be made by poly-mer or other material, and these materials are flexible and can compress article when article 750 enter the sweep 110 of conveyer 100.

Another embodiment of conveyer 800 is shown among Figure 23.Conveyer 800 can comprise outer guide plate 808 and not shown inner guide plate.Outer guide plate 808 can comprise a plurality of guide rails 810, and wherein the embodiment of Figure 23 comprises first guide rail 812, second guide rail 814 and the 3rd guide rail 816.The application of three guide rails 810 is exemplary, should be noted that conveyer 800 can comprise than three guide rails that guide rail is more or less described here.Should be noted that conveyer 800 is similar to the conveyer of Fig. 1 and 22 substantially except having the guide rail 810 that replaces roller 124.As the conveyer 100 of Fig. 1, conveyer 800 can be provided with different radians and different radiuses at curve.

Outer guide 810 comprises a plurality of rolling-ball unit 200.Rolling-ball unit 200 is the same with top described ball 200.Ball 200 is installed in the friction that is used on the guide rail 808 reducing between article that are transferred on the conveyer 100 and outer guide 808.Article can apply centripetal force on outer guide 808.Ball in the rolling-ball unit 200 is outwards urged by air, makes article contact ball, thereby reduces the friction between article and the outer guide 808.The friction that reduces makes the speed of the article that the machine that is transferred 100 is carried more can predict.

Should be noted that the size and the shape of the article that transmit according to the machine that is transferred, the layout of the rolling-ball unit 200 in the guide rail 808 can be different with quantity.The layout of the rolling-ball unit 200 in the guide rail 808 can be used to make article and the contact minimum between 808 parts of the guide rail between the rolling-ball unit 200.If big article are transferred, then the distance between the rolling-ball unit 200 is big.Similarly, if little article are transferred, the distance between the ball 200 is little.In addition, the size of rolling-ball unit 200 and quantity can be according to the radiuses of the curve of conveyer and are different.

Conveyer 100 and 800 be used for changing the article that are transferred direction and to the minimum that influences of article speed.More particularly, can know the speed of article more accurately than conventional conveyor system.Usually experience unknown rapid change when typically, the article of carrying by conventional conveyor are carried near curve.Thereby have to more greatly to avoid them to collide mutually in the interval that is transferred between article.More particularly, have to be provided with enough greatly at interval so that second is transferred article and does not collide the previous article that are transferred.But this collision damage product or make arbitrary article break away from conveyer system.Conveyer 100,800 disclosed herein makes the article that are transferred to be close together, and all is known because run through the speed of the sweep article of conveyer 100,800.Therefore, the number of times that can transmit is more each time cycle.In addition, conveyer 100,800 can transmit article quickly than conventional conveyor.

Should be noted that described conveyer 100,200 uses ball 200 at sweep.But should be appreciated that rolling-ball unit can be used in the straight line conveyer system.

Acceleration device

With reference to Fig. 1, acceleration device 130 is to use the example of the conveyer system of rolling-ball unit 120.Article flow in the acceleration device 130 control conveyer systems.This control can comprise to article to be quickened, the article in the conveyer system is separated and even article are slowed down.Describe acceleration device 130 with reference to Figure 24 in addition, Figure 24 is the birds-eye view of acceleration device 130.In a word, the article on the acceleration device place on the ball transfer device and move by load-transfer device etc.

Acceleration device 130 comprises two cingulums (rack), is called first cingulum 830 and second cingulum 832 respectively.As shown in Figure 1, be equipped with capping 834 on first cingulum 830.In the cingulum 830,832 one or two can move towards other cingulum along the direction shown in the axis 838.As described in greater detail, this article that make on easier contact of the equipment that is provided with on cingulum or the cingulum and the mobile acceleration device 130 that move.Should move and in fact can realize, comprise one or two of cingulum 830,832 is installed on the carriage that hydraulic efficiency equipment wherein moved cingulum 830,832 by any way.Thereby cingulum 830,832 can be according to the size that is transferred article and quick travel.

The embodiment of the cingulum 830 shown in Fig. 1 comprises upper rail 840 and lower guideway 842.As described in greater detail, the parts movable object that is associated with upper rail 840, lower guideway 842 can be used for keeping article not come off from acceleration device 130.

The embodiment of the acceleration device 130 shown in Figure 24 does not comprise the capping 834 among Fig. 1.Therefore, can see the internal part of acceleration device.Each guide rail of acceleration device 130 comprises chain, is called first chain 846 and second chain 848.Each chain 846 and 848 has a plurality of friction devices that are attached to it.The friction device that is attached to first chain 846 is called first friction device 850, and the friction device that is attached to second chain is called second friction device 852.Friction device is used for along acceleration device contact and mobile article and damage product not.Friction device can be by making such as compressible materials such as rubber, and compressible material makes friction device contact and mobile article and damage product not.Friction device 850,852 is depicted as the basic oblong that is.But friction device 850,852 can be other shape.For example, they can be some tips, the article that the tip portion contact is transferred.

Chain 846,848 moves by a plurality of sprocket wheels, and these sprocket wheels are marked by Reference numeral 856,858,860,862.First chain 846 is around roller 856 and 858 rotations.When operation, but roller 856 and 858 left-hand revolutions make the friction device 850 of contact article move along direction 127 like this.Second chain 848 is around roller 860 and 862 rotations.When operation, but roller 860 and 862 clickwises make the friction device 852 of contact article move along direction 127 like this.

Roller 856,858,860,862 can be driven by one or more motor (not shown).In some embodiments, related with first chain 846 or second chain 848 roller is connected with motor.For example, motor can be connected to roller 856, and roller 856 drives first chain 846.First chain 846 that is moved of article is carried then.The mode that second chain 848 can contact article moves.In some embodiments, available smooth surface replaces second chain 852.In other embodiments, can drive a roller on each chain.For example, two rollers 856 can or be connected a motor driven of each roller by a motor with 860.

The article that are transferred are placed on the platform.In the embodiment of the conveyer shown in Figure 24 130, platform is a plurality of guide rails 870.Three guide rails 870 are shown among Figure 24 and are referred to as first guide rail 872, second guide rail 874 and the 3rd guide rail 876.Should be noted that in other embodiments and can use more or less guide rail 870.Guide rail comprises a plurality of rolling-ball unit 120, and rolling-ball unit plays same as previously mentioned effect.Also with aforementioned the same, the quantity of rolling-ball unit 120 and layout depend on the application of acceleration device 130.

In use, article are carried by chain 846,848 on guide rail 870.When chain 846,848 moved, friction device 850,852 contact article moved article.Rolling-ball unit 120 is used to reduce the friction between article and the guide rail 870, makes acceleration device 130 that article are carried with higher relatively speed.In some embodiments, article are carried with the speed of about 3000 feet per minutes.Should be noted that article can than 3000 feet per minutes carry faster or slower.As mentioned above, friction element 850,852 can contact with the article that are transferred by moving cingulum 830,832 along direction 838.In some embodiments, article big or small determined, and cingulum 830,832 moves in view of the above.

Acceleration device 130 can also increase to higher speed so that article are interleaved with it in the time later then again by the speed that slows down article.Thereby article can be finished the operation to other article on conveyer system another part when waiting on acceleration device 130.After operation was finished, acceleration device can promptly articles conveyedly pass through conveyer system.

Claims (22)

1. roller comprises:

Sleeve pipe with first end and second end;

Be positioned at least one first pore of described first end;

Be positioned at least one second pore of described second end;

Be positioned at the motor of described sleeve pipe, described motor comprises rotor and stator, and wherein said rotor is connected to described sleeve pipe; And

Extend in the air by-pass passage between described at least one first pore and described at least one second pore, wherein said air by-pass passage contacts described motor.

2. roller as claimed in claim 1, the mode with running that also comprises is connected to first fan of described sleeve pipe, and wherein said fan is arranged in described air by-pass passage.

3. roller as claimed in claim 2, wherein said first fan are positioned near described first end of described sleeve pipe.

4. roller as claimed in claim 1 also comprises near second fan of described second end that is positioned at described sleeve pipe, and described second fan is positioned at described air by-pass passage.

5. roller as claimed in claim 1 also comprises described first end that is positioned at described sleeve pipe and the end cap that is attached to described first end of described sleeve pipe, and wherein said at least the first pore extends through described first end cap.

6. roller as claimed in claim 1, wherein said first end cap comprises a plurality of spokes, wherein said at least one first air by-pass passage is between at least two described spokes.

7. roller as claimed in claim 1 is formed with at least one hole in second end of wherein said sleeve pipe, and wherein said at least one hole is described at least one second pore.

8. roller as claimed in claim 1, also comprise near near first fabricated section, second fabricated section with described second end that is positioned at described sleeve pipe of described first end that is positioned at described sleeve pipe, wherein said sleeve pipe can be with respect to described first fabricated section and the rotation of described second fabricated section.

9. roller as claimed in claim 1, wherein said sleeve pipe has outside face, and has a plurality of indentations on the described outside face.

10. roller comprises:

Sleeve pipe with first end and second end;

Be positioned near first end cap of described first end of described sleeve pipe, described first end cap comprises at least one pore;

Be positioned at the motor of described sleeve pipe, described motor comprises rotor and stator, and wherein said motor is connected to described sleeve pipe; And

Be connected to first fan of described sleeve pipe in the mode of running;

From first air by-pass passage that described at least one pore extends to described first fan and comes out at least one pore, wherein said first air by-pass passage contacts described motor.

11. roller as claimed in claim 10, wherein said first fan can rotate around axis, and described first air-flow enters described first fan along the direction that is basically parallel to described axis, and leaves described first fan along the direction that is basically perpendicular to described axis.

12. roller as claimed in claim 11 also comprise first shell of at least a portion that holds described first fan being formed with at least one hole in wherein said first shell, and described first air by-pass passage is through described at least one hole.

13. roller as claimed in claim 10, wherein said first end cap comprises a plurality of spokes, and wherein said at least one pore is between two described spokes.

14. roller as claimed in claim 10, wherein said spoke comprise the long element that extend towards the direction of described second end of described sleeve pipe on the edge.

15. roller as claimed in claim 10, wherein aspirated air and air-out can be in described at least one pore place exchanges.

16. roller as claimed in claim 10, wherein said sleeve pipe has outside face, has a plurality of indentations on the described outside face.

17. roller as claimed in claim 10, at least a portion of wherein said first air by-pass passage is passed through between the inside face of described sleeve pipe and described rotor.

18. roller as claimed in claim 9 also comprises:

Be positioned near second end cap of described second end of described sleeve pipe, described second end cap comprises at least one second pore;

Be connected to second fan of described sleeve pipe in the mode of running;

From second air by-pass passage that described at least one second pore extends to described second fan and comes out at least one second pore, wherein said first air by-pass passage contacts described motor.

19. roller as claimed in claim 18, wherein said second end cap comprises a plurality of spokes, and wherein said at least one second pore is between two described spokes.

20. roller as claimed in claim 19, wherein said spoke comprise the long element that extends along towards the direction of described first end of described sleeve pipe.

21. a conveyer comprises:

Platform, wherein article can move on described platform;

Be basically perpendicular to the wall that described platform extends; And

Be positioned at least one roller of described wall, described at least one roller comprises:

Sleeve pipe with first end and second end, wherein said sleeve pipe can be with respect to described wall rotation;

First fabricated section that extends from described first end of described sleeve pipe and second fabricated section that extends from described second end of described sleeve pipe, described first fabricated section and described second fabricated section are attached to described wall;

Be positioned near first end cap of described first end of described sleeve pipe, described first end cap comprises at least one pore;

Be positioned at the motor of described sleeve pipe, described motor comprises rotor and stator, and wherein said rotor is connected to described sleeve pipe; And

Be connected to first fan of described sleeve pipe in the mode of running;

From first air by-pass passage that described at least one pore extends to described first fan and comes out at least one pore, wherein said first air by-pass passage contacts described motor.

22. conveyer as claimed in claim 21 also comprises a plurality of rolling-ball unit that are positioned at described platform.

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