气垫带式输送机外文文献翻译、中英文翻译

1、外文文献2Air cushion belt conveyor The inventive air supported belt conveyor provides significant improvements over prior art designs using either idler rolls or trough-shaped conveyor configurations. With the inventive conveyor, the increased maintenance requirements due to the presence of idler rolls

2、are minimized or eliminated. In addition, elimination of the idler rolls also results in fabrication of a simpler structure. With a simpler structure to fabricate, the overall system takes less time to erect in a field installation, thereby contributing to reduced capital costs. Further, the absence

3、 of the idler rolls results in the elimination of the alignment procedures which must be utilized in prior art conveyor systems. The inventive conveyor is safer than prior art systems through the elimination of pinch points which are present in conveyor systems using idler rolls. With this safety im

4、provement, it may also be possible to eliminate pull cord switches along the conveyor, thus contributing another economic advantage. Operating costs are improved with the inventive conveyor since less power is needed to drive the conveyor belt. In conveyor systems using idler rolls, their mass and f

5、riction component contribute greatly to the conveyor power consumption. Through the elimination of idler rolls, the overall conveyor drive force power is reduced, even with the existence of a blower or the like to supply the air for conveyor belt support. The conveyor of the invention is also effect

6、ive as a high-speed conveyor, e.g., speeds in excess of 2,000 feet per minute, particularly when the conveyor may have open spaces therealong. Open spaces occur due to the conveyance of articles which may be spaced apart or fed to the conveyor in an intermittent fashion. The inventive conveyor has a

7、 generally flat belt configuration which is ideal for conveying articles such as baggage, packages or the like. Features of the inventive conveyor permit air support of the generally flat conveyor without loss of control over the lateral movement of the conveyor as it travels or without excessive we

8、ar which could result during high speed operation. An exemplary embodiment of the inventive conveyor is depicted in FIGS. 2 and 3 and is designated by the reference numeral 20. The conveyor 20 includes a plenum chamber 21 having opposing ends 23. The plenum chamber 21 is supported via the ends 23 by

9、 support members 25. The support members 25 position the plenum chamber 21 at the proper elevation so that the conveyor can interface with the appropriate feed and exit arrangements (not shown). The support members 25 are shown as beams but any structural member or arrangement can be utilized to sup

10、port the plenum chamber 21. The plenum chamber 21 includes a bottom plate 27 and a top plate 29, these plates together with the sides 23 forming an interior 31. Strengthening ribs 33 can be positioned in the interior 31 where appropriate to provide additional support. The bottom plate 27 is shown wi

11、th an incline toward the longitudinal axis of the conveyor. A drain plug 32 is located at a midpoint of the bottom plate 27 to facilitate removal of accumulated moisture or other unwanted materials. Of course, other configurations of the plenum chamber 21 can be utilized provided that the interior 3

12、1 can be pressurized to provide the air support for the conveyor belt. Still referring to FIGS. 2 and 3, the top plate 29 contains a plurality of orifices 35. The orifices 35 can be slots, round holes or the like and can be distributed as shown or be positioned in other configurations, uneven spacin

13、gs, etc. A belt 37 is positioned adjacent the top plate 29. The top plate 29 functions as a support for the belt 37 in two modes. First, when the interior 31 is not pressurized by a source of air 38, such as a fan, blower or the like, the belt 37 rests on the plate 29. When the interior 31 is pressu

14、rized, air flows through the top plate orifices 35 and against the underside 39 of the belt 37. The air flow creates an air bearing or cushion of air of a given thickness to support the belt 37 while it is driven by a belt drive (not shown) for article conveying. The belt drive is conventional and a

15、 further description thereof is not deemed necessary for invention understanding. More specifically, air or any pressurizable fluid is pumped into the interior 31 from a simple low horsepower centrifugal fan or any air moving device. The air escapes through the series of orifices at or near the long

16、itudinal axis of the conveyor. The air spreads out width-wise and lifts the belt 37 off the top surface 40 of the top plate 29. At the same time, the belt is propelled by a conventional drive system. Air is pulled along with the belt at approximately the same speed as the belt is driven. Air escapes

17、 along the belt side edges and at the entrance and exit ends of the conveyor. Air escapes more so at the exit end rather than the entrance end since the travel of the belt draws air with it. The top plate 29 is divided into three sections, a center generally flat section 41 and opposing outer sectio

18、ns 43, each angled or bent upwardly from the flat plane defined by the center section 41, see FIG. 2. The outer section 43 is illustrated in FIG. 3 as having a transition section 45 with a radius R and a generally straight section 47. The transition section 45 functions to bend the belt slightly or

19、give it a steering action. The outer section 43 besides being defined by the radius R is also defined by the angle .theta. The bend or radius can vary depending on the particular conveyor application, e.g., from a tight bend when the radius is near zero to a gradual bend when the radius could be up

20、to 20 inches. A preferred radius range is between 5 and 10 inches and more preferably 5 and 7 inches, e.g., 6.5 inches. Similarly, the angle .theta. could vary as well, ranging up to 60.degree., preferably 25.degree. to 35.degree., and more preferably 30.degree. The straight section 47 is shown bein

21、g basically coincident with an exit angle defined by the end portion 48 of the transition section 45. However, the section 47 could be angled with respect to the end portion 48 of the transition section 45, if so desired. Besides providing a steering action to the belt 37, the angle or curved outer

22、section 43 of the top plate 29 also functions as part of a belt edge guide designated by the reference numeral 50, see FIG. 2. The belt edge guide 50 assists in controlling belt steering or lateral movement and belt upward or vertical movement during belt travel. The belt edge guide 50 functions to

23、direct air emerging from the underside 39 of the belt 37, around the belt edge face 51 and across the upper belt surface 53. As described in more detail below, the belt edge guide 50 also creates a zone of increased pressure over the belt upper surface 53 to control belt edge upward movement, partic

24、ularly when the belt may have open spaces, i.e., spaces where no articles are being carried or a no loading situation. With specific reference to FIG. 3, the belt edge guide 50 includes an elongated bar 55 running generally parallel with the axis of the conveyor 20. The bar 55 is positioned between

25、a guide 57 and the straight section 47 of the top plate 29. In FIG. 3, the bar 55 is shown secured to the guide 57 by the nut 59 and bolt 61 arrangement, the nut 59 extending through openings in the bar 55 and the guide underside 63. The guide 57 is shown supported by the member 25 at reference nume

26、ral 65. The guide 57 can also function with its upstanding surface 67 as a guide surface for an article 75 being conveyed on the belt 37, see FIG. 2. The arrangement of the bar 55, the guide 57 and the top plate 29 create a zone of high pressure over the belt surface 53. More particularly, air exiti

27、ng from the underside 39 of the belt enters a recess 69 formed by the top plate 29, the underside 63 and the elongated bar face 71. The air, after entering the recess 67, passes over the upper surface 53 of the belt and out a slot 73. By reason of the reduced dimensions of the slot 73 as compared to

28、 the recess 69, a zone of higher pressure, e.g., greater than ambient pressure, is created above the belt surface 53. This zone of high pressure tends to force an edge portion of the belt toward the top plate 29. Thus, contact between the belt surface 53 and the underside surface 63 of the guide 57

29、is minimized or eliminated. This action is extremely significant when the belt is traveling at high speeds, greater than a 1,000 feet per minute and as high as about 2,200 feet per minute. Contact between the surfaces 53 and 63 at these high speeds could cause significant damage to the belt surface.

30、 In addition, since the conveyor 20 may be adapted to carry packages or luggage, see FIG. 2, the belt 37 may see open spaces where the belt is not uniformly loaded. Under these conditions, a tendency exists for the air bearing, i.e., the distance between the underside the belt 39 and the top surface

31、 40 of the top plate 29, to increase and force the belt upwardly, including the belt edge surface 53. With the edge guide 50, air escaping from the sides of the belt is used to control and/or minimize upward belt edge movement. Consequently, the belt can be operated with intermittent article conveya

32、nce and, if desired, at high speeds without belt surface damage. To further enhance the zone of increased pressure, the underside surface 63 of the guide 57 can be bent or angled differently from the angle created by the straight section 47 or angles tangent to the transition section 45. When measur

33、ed in either way, the difference in angling whereby the acute angle formed by surface 63 and a reference plane bisecting the flat section 41 of the top plate 29 would be greater than that formed by the straight section or tangents to the transition section 45 with respect to the same reference plane

34、. The angling difference between the underside surface 63 and the tangents of the transition section 45 or straight section 47 serves to reduce the slot dimension 73 so that the zone of pressure in recess 69 is increased over a configuration wherein a relationship between the guide surface 63 and st

35、raight section 47 or tangents to section 45 is generally parallel. It should be understood that the design of the belt edge guide 50 is exemplary. Any configuration or means which would direct air from under the belt 37, around the belt edge face 51 and over its upper surface 53 to create the increa

36、sed pressure zone can be utilized. For example, the guide undersurface 63 could be separate from the guide 57, particularly when the upstanding vertical guide surface 67 would not be needed, e.g., utilizing the conveyor 20 for both conveying articles, e.g., a feed run conveyor, and as a return conve

37、yor. Using the conveyor 20 for the both conveying articles and as a return conveyor overcomes the disadvantages noted above in trough-shaped air supported belts when the return conveyor uses conventional idler rolls. To enhance the steering action of the belt 37, the bar 55 can use a low friction ma

38、terial on its face 71. This material reduces the friction when the belt edge face 51 may contact the bar face 71. The low friction material can be either a coating, a removable attachment or any other type of configuration which can be interfaced with the bar 55. Preferably, the low friction materia

39、l is a fluorocarbon polymer such as Telflon.RTM., as a coating or the like. The entire bar can be coated if desired. The bar 55 can take other forms providing that a seal or the like is maintained to assure creation of the zone of high pressure. The bar 55 could also be attached to the straight sect

40、ion 47 or another and separate support, if so desired. The bar 55 could also be made as a integral or non-removable component of either the guide 57 or the plenum chamber 21. While the slot dimensions 73 can be altered by changing the relationship between the guide undersurface 63 and the top plate

41、29, other means or devices could be used to adjust the slot dimension, e.g., inserts attachable to the guide 57, protruding lips or any other structure which will create the desired increase in pressure over the upper surface of the belt 37. In the method aspect of the invention, the conventional ai

42、r supported belts are improved by arranging the belt to follow a contour of a belt support having a generally flat center section and angled outer sections. With this configuration, a portion of the pressurized fluid used to support the belt is directed around side edges of the belt and along an upp

43、er surface of the belt. With the appropriate configuration in the vicinity of the belt edge, a zone of increased pressure is created over the belt upper surface to assist in controlling belt edge upward movement. Generally, it is desired to create an air bearing or cushion of up to about 0.02 inches

44、 in thickness. More preferably, the air cushion can be less than 0.010 inches or range between 0.004 and 0.006 inches. Of course, the target air bearing may vary depending on the loads intended for conveying. Generally, 14 to 16 inches of water as fan pressure is desired with six cubic feet per minu

45、te of air being supplied per lineal foot of conveyor. Again, these values may vary depending on the conveyor application. The calculations necessary to determine optimum air bearing clearances, air pressures and air volumes are well within the skill of the artisan. Similarly, the power requirements

46、for driving the conveyor and supplying the desired volume of air can be calculated by one skilled in the art. A typical conveyor could utilize a 42 wide conveyor belt, an air bearing of between about 0.004 and 0.006 inches and be specially adapted to carry baggage or packages at a high rate of speed

47、, e.g., more than 2,100 feet per minute. As such, an invention has been disclosed in terms of preferred embodiments thereof which fulfills each and every one of the objects of the present invention as set forth above and provides a new and improved air supported belt conveyor and a method of article

48、 conveying. Of course, various changes, modifications and alterations from the teachings of the present invention may be contemplated by those skilled in the art without departing from the intended spirit and scope thereof. It is intended that the present invention only be limited by the terms of th

49、e appended claims.14中文译文2气垫带式输送机极富创造性的的气垫带式输送机与先前支撑托辊或槽形输送机相比，在技术设计上有了意义重大的改进，由于这个富有创造性的输送机的支撑托辊结构的提高，使得维修要求被最小化甚至消除了。另外，支撑托辊的淘汰也使装配结构变得更加简单。随着装配结构简单化，现场安装时全部系统的安装时间减少了，从而有助于减少基建费用。而且，没有了支撑托辊，就不需要校准过程，而这在原来输送系统的工艺技术中是必不可少的。通过消除压缩点使这次发明的输送机优于之前最先进的系统，而这一点目前在托辊输送机上得到体现。有了这个安全上的改善，它也有可能消除沿着传送带的拉绳开关，从而促

50、进其他经济方面的优势。新的输送机会使经营成本得到改善是因为其需要较少的电源来驱动输。在使用托辊输送机系统，其聚集和摩擦组件会对产生输送功能耗。通过消除托辊，整体输送驱动力的功率降低，甚至会提供鼓风机或类似鼓风机功能提供空气支持输送带。输送机的发明也有效地影响了高速传送带的提高，例如，每分钟它的速度超过了2000英尺，尤其是当输送机可能拥有开放空间。开放空间会存在可能是由于物品被间歇的房子在传送带上输送。这次发明的输送机拥有基本上算平滑传送带配置，这使得输送更理想，如输送行李，包裹或类似的物品。这次发明的输送机其特点在于允许空中传送，除非在侧面移动时平衡失去控制，或是因为在使用中过度磨损，可能导

51、致在高速运转的一般平面输送无法正常运行。 在指示图中，形象的描绘以至于可以被模仿出来的一个传输机。在图中2和3指定的参考是数字20。输送20包括1增压室21拥有有对立的两端23。通过支持增压室21，直到结束23其中支撑成员25。支撑25位置的气腔，在适当的海拔范围，可以使输送机，与与其相应的流入和出口接通（未显示）21。支持成员25所显示的是它的脊梁，但任何结构成员或安排可以用来支持全会室21。充气室21包括一个底板27日和一个顶板29，这些与两侧23共同形成一个室内31。在适当情况下提供额外的支持可加强主干33可放置在室内31。底板27表现了向传送带纵轴倾斜传送带。排水塞32位于底板27的中

52、点，以方便清除积累的湿气或其他有害物质。当然，充气室21的其他配置可以利用内部的31可加压输送带以提供空中支援。还是回到图中。在图中的2和3，顶板29包含了多个孔35。孔35可以看成是槽，圆孔或类似的，可以分布如图，或在其他配置，不均匀间距分布等。一个带37定位在相邻的顶板29。顶板29作为一个对带37有支持的功能包含两种模式。首先，室内31时空气的资源不产生加压38，如风扇，鼓风机或其他类似工具，带子37停滞于板子29。当室内31加压时，会产生空气流动通过顶板窍35和相对的下面的37的皮带底面39。空气流动创造一个空气轴承或提供一个具有一定厚度的空气垫，以支持带子37尽管它是由输送皮带来进行

53、驱动的（未显示），。带传动是与传统输送机相同的，在这里没有必要再进行更为详细的对带子的描述。更具体地说，空气或任何压力流体从一个简单的低马力离心风机或任何移动设备的空气抽入室内31。空气通过一系列达到或接近纵轴输送窍逃脱。在空气中传播出去宽度明智升空带37顶面顶板29 40。同时，皮带推动由传统的驱动系统。空气被拉到在大约相同的速度沿皮带驱动皮带。沿带侧边缘，在传送带的入口和出口两端空气逸出。空气逸出，在出口端，而不是高考结束，更因为带的旅游提请它的空气。 顶板29划分成三个部分，中心大体持平的第41条，反对外部分43，每个角度或从中心第41条所定义的平面向上弯曲，见图。 2。 外的第43条说

54、明图。有一个过渡半径“R”和一般直的第47条第45条3。过渡第45条职能稍微弯曲皮带，或给它一个转向行动。 外半径“R”的定义除了43条也由角度定义“。THETA”。弯曲半径可以有所不同，取决于特定的输送应用，例如，从紧的弯曲，当半径接近零一个渐进的弯曲半径时可能高达20英寸。一个首选半径范围是5至10英寸和最好的5和7英寸，例如，6.5英寸。同样，角“THETA”可能会有所不同，以及高达60度，最好25度。 35度，最好30度 .连续第47条基本上与过渡段45 48的结尾部分定义了一个出口角重合。然而，第47条，可尊重的结尾部分过渡段45 48角度，如果需要的话。 除了提供一个指导行动，皮带37，角或弯曲的外节43 29顶板作为参考数字50指定一个带边缘指南的一部分功能，见图。 2。带边缘导向控制带转向或横向运动，并在带旅游带向上或垂直运动50次助攻。 皮带边缘指南50功能，直接从39 37皮带底面带边缘面对51左右，整个皮带上表面53新兴的空气。在下面更详细地描述，皮带边缘指南50还创建了一个区增加了53皮带上表面，以控制带边缘向上运动的压力，尤其是当带可能有开放的空间，也就是说，没有正在开展的空间或无负荷的情况。 具体的参照图。 3，带边导50包括一个细长的杆55上运行的大致平行的输送20轴。杆55位于指南57和直47节的顶板29。在图3中，杆55所示抵押指南57 5