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1.发明授权Method and apparatus to check the acceptableness of the state of wear in the covering fabric of a driving belt 失效检查传动带的覆盖织物中磨损状态的可接受性的方法和装置
公开(公告)号：US5351530A
公开(公告)日：1994-10-04
申请号：US44045
申请日：1993-04-08
CPC分类号： G01N27/20
摘要： A method and apparatus for carrying out the checking of the state of wear of a covering fabric in a driving belt (2) mounted on a plurality of pulleys (3, 4, 5) by measuring the electric resistance variations of the belt fabric. The apparatus provides that at least two of the pulleys (3, 4, 5) should be electrically insulated with respect to each other and connected to an electric circuit (20) designed to apply an electric voltage to said pulleys in order to carry out the measuring of the electric resistance of the fabric exhibited by belt stretches (A, B) comprised between the pulleys themselves. The electric resistance thus found lends itself to be compared with predetermined resistance values corresponding to different states of wear of the belt (2) fabric. The work surface of the belt (2) is coated with an electrically conductive fabric (12) acting by contact on the pulleys (3, 4, 5) and having characteristics of tensile strength.
摘要翻译： 一种用于通过测量带状织物的电阻变化来进行安装在多个滑轮（3,4,5）上的传动带（2）中检查覆盖织物的磨损状态的方法和装置。 该装置规定，滑轮（3,4,5）中的至少两个应相对于彼此电绝缘并且连接到设计成向所述滑轮施加电压的电路（20），以便执行 通过皮带轮本身之间的带束（A，B）显示的织物的电阻的测量。 这样发现的电阻使其与对应于带（2）织物的不同磨损状态的预定电阻值相比较。 带（2）的工作表面涂覆有通过接触在滑轮（3,4,5）上并具有拉伸强度特性的导电织物（12）。
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2.发明授权Process for manufacturing toothed belts of elastomeric material and toothed belt made by said process 失效用于制造由所述方法制成的弹性材料和齿形带的齿形带的方法
公开(公告)号：US5498214A
公开(公告)日：1996-03-12
申请号：US439569
申请日：1995-05-11
CPC分类号： B29C69/001 , B29D29/08 , F16G1/28 , B29C2793/0063 , B29C47/0019 , B29C47/0021 , B29C47/0023 , B29C47/0026 , B29C47/0033 , B29C47/004 , B29C47/0066 , B29C47/02
摘要： In a process for manufacturing toothed belts of any length, a tubular sleeve comprising a layer of cords (1) and at least a layer of elastomeric material (2) is preformed in an autoclave without being vulcanized so as to produce, on the inner surface thereof, a plurality of grooves (5) spaced apart from one another according to a predetermined toothing pitch (P). The sleeve is helically cut to obtain a continuous strip (7) to be subsequently wrapped over two wrapping drums (8, 9) suitably spaced apart from each other depending on the circumferential extension to be given to the belt. The obtained annular element (10), when the wrapping has been completed, is trued up by means of the provided grooves, between a molding matrix (11) and opposite mould (12) and is submitted to a pressing step and simultaneous cross-linking of the elastomeric material (2) by closing said elastomeric material between the molding matrix (11) and opposite mold (12) according to stages in succession. Thus the complete formation of the teeth (3) on the inner side of the belt being worked occurs, as well as the firm bonding of the continuous loops (10a) formed by wrapping of the continuous strip (7).
摘要翻译： 在用于制造任何长度的齿形带的方法中，包括一层绳索（1）和至少一层弹性体材料（2）的管状套筒在高压釜中预成型而不被硫化以便在内表面 根据预定的齿距（P）彼此间隔开的多个凹槽（5）。 套筒被螺旋切割以获得连续的条带（7），随后被包裹在两个包装滚筒（8,9）上，这两个包裹滚筒（8,9）根据给予皮带的周向延伸部彼此适当间隔开。 通过所提供的凹槽，在模制基体（11）和相对的模具（12）之间，将所获得的环形元件（10）完成包装，并进行加压步骤并同时进行交联 通过根据连续的阶段在模制基体（11）和相对的模具（12）之间封闭所述弹性体材料来制造弹性体材料（2）。 因此，正在加工的带的内侧上的齿（3）的完全形成以及通过连续带（7）的包裹形成的连续环（10a）的牢固结合。
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公开(公告)号：US5046993A
公开(公告)日：1991-09-10
申请号：US433789
申请日：1989-11-09
摘要： A toothed belt having between its teeth and the grooves adjacent to the teeth curvilinear connection segments whose ends are located on the end of the tooth flank and the base line delimiting the grooves. The first end of the curvilinear connection segment coincides with the first terminal point of an arc tangent to the end of the flank and to the base line delimiting the grooves, the second end of the curvilinear segment being located between the second point of the arc and the point of intersection of the central axis of the grooves and the base line.
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4.发明授权Toothed belt transmission for driving dynamic balancing shafts in endothermic engines 失效用于在吸热发动机中驱动动平衡轴的齿形带传动装置
公开(公告)号：US5624337A
公开(公告)日：1997-04-29
申请号：US650793
申请日：1996-05-20
摘要： In an endothermic engine there are two dynamic balancing shafts driven in rotation in respectively opposite directions, at a speed twice that of the rate of rotation of the crankshaft. The dynamic balancing shafts are driven by a toothed belt transmission (1), comprising a driving pulley (2) keyed on the crankshaft, two driven pulleys (3, 4) keyed on the balancing shafts and a tensioning pulley (5) rotatably engaged with the base. The pulleys (2, 3, 4, 5) are connected together by a belt (6) having an internal (9) and external (10) toothing with a toothing pitch (P) equal to 7.5 mm, and provided with a resistant insert (7) formed by glass fibre cords (8) having a diameter equal to 0.9 mm.
摘要翻译： 在吸热发动机中，有两个动态平衡轴分别以相反方向旋转，速度是曲轴旋转速度的两倍。 动力平衡轴由带齿传动装置（1）驱动，齿轮传动装置（1）包括一个带在曲轴上的驱动皮带轮（2），两个带在平衡轴上的从动皮带轮（3,4）和一个可转动地与 的基地。 带轮（2,3,4,5）通过具有内部（9）和外部（10）齿形的带（6）连接在一起，齿形间距（P）等于7.5mm，并且设置有耐磨插入件 （7）由直径等于0.9mm的玻璃纤维帘线（8）形成。
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公开(公告)号：US5102374A
公开(公告)日：1992-04-07
申请号：US666090
申请日：1991-03-07
摘要： A toothed belt (1) having between its teeth (7) and the grooves (8) adjacent to the said teeth curvilinear connection segments (17) whose ends are located on the end of the tooth flank and the base line delimiting the grooves. The first end (18) of the curvilinear connection segment coincides with the first terminal point of an arc (20) tangent to the end of the flank and to the base line delimiting the grooves, the second end (19) of the curvilinear segment being located between the second point (21) of the said arc and the point of intersection (22) of the central axis of the groove L-L and the base line. Preferably, the toothed belt forms part of a transmission member including pulleys in which at least one of the pulleys is provided with teeth (24) filleted laterally with respect to the adjacent grooves (23) by curvilinear segments (31, 32) shaped to correspond to the curvilinear connection segments of the belt. Preferably, the curvilinear connection segments of the belt and of the pulley are parabolic arcs.
摘要翻译： 齿带（1）具有在其齿（7）和邻近所述齿曲线连接段（17）的槽（8）之间，其端部位于齿面的端部和限定槽的基线。 曲线连接段的第一端（18）与与侧面的端部相切的弧线（20）的第一终点与限定槽的基线重合，曲线段的第二端（19）为 位于所述弧的第二点（21）和凹槽LL的中心轴线的交点（22）和基线之间。 优选地，齿形带形成包括滑轮的传动构件的一部分，其中至少一个滑轮设置有相对于相邻凹槽（23）横向切割的齿（24），曲线段（31,32）被成形为对应 到带的曲线连接段。 优选地，带和皮带轮的曲线连接段是抛物线。
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6.发明授权Toothed belt transmission for driving dynamic balancing shafts in endothermic engines 失效用于在吸热发动机中驱动动平衡轴的齿形带传动装置
公开(公告)号：US5536213A
公开(公告)日：1996-07-16
申请号：US343913
申请日：1994-11-17
摘要： In an endothermic engine there are two dynamic balancing shafts driven in rotation in respectively opposite directions, at a speed twice that of the rate of rotation of the crankshaft. The dynamic balancing shafts are driven by a toothed belt transmission (1), comprising a driving pulley (2) keyed on the crankshaft, two driven pulleys (3, 4) keyed on the balancing shafts and a tensioning pulley (5) rotatably engaged with the base. The pulleys (2, 3, 4, 5) are connected together by a belt (6) having an internal (9) and external (10) toothing with a toothing pitch (P) equal to 7.5 mm, and provided with a reinforcing structure (7) formed by glass fibre cords (8) having a diameter equal to 0.9 mm.
摘要翻译： 在吸热发动机中，有两个动态平衡轴分别以相反方向旋转，速度是曲轴旋转速度的两倍。 动力平衡轴由带齿传动装置（1）驱动，齿轮传动装置（1）包括一个带在曲轴上的驱动皮带轮（2），两个带在平衡轴上的从动皮带轮（3,4）和一个可转动地与 的基地。 带轮（2,3,4,5）通过具有内部（9）和外部（10）齿形的带（6）连接在一起，齿形间距（P）等于7.5mm，并具有加强结构 （7）由直径等于0.9mm的玻璃纤维帘线（8）形成。
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7.发明授权Pulley for a synchronous drive system comprising a polymeric material toothed-belt and related transmission 失效用于同步驱动系统的皮带轮，包括聚合物材料齿形带和相关传动装置
公开(公告)号：US4696665A
公开(公告)日：1987-09-29
申请号：US742237
申请日：1985-06-07
CPC分类号： F16H55/171 , F16G1/28 , F16H55/08 , F16H7/023
摘要： A pulley for a synchronous drive system comprising a toothed-belt of polymeric material, the pulley comprising grooves provided with flanks having a parabolic arc-shaped profile and a bottom whose ends coincide with the vertices of said parabolic arc-shaped profile. The length of the bottom is comparable with that of the parabolic arc-shaped profiles. Preferably, the grooves have a shape determined by a hob whose rolling pitch line is tangent to the outer circumference of the pulley.
摘要翻译： 一种用于同步驱动系统的滑轮，包括聚合物材料的齿形带，所述滑轮包括设置有具有抛物线弧形轮廓的侧面的凹槽和其端部与所述抛物线弧形轮廓的顶点重合的底部。 底部的长度与抛物弧形轮廓的长度相当。 优选地，槽具有由其滚动节距线与滑轮的外周相切的滚刀所确定的形状。
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公开(公告)号：US4614509A
公开(公告)日：1986-09-30
申请号：US709367
申请日：1985-03-11
摘要： A toothed belt constituted by an annular body of elastomeric material, having a structure that is resistant to tensile stress embedded therein and having a toothing on one of its faces. The teeth of said annular body have at least one slot corresponding to their own top.
摘要翻译： 由弹性体材料的环形体构成的齿形带，其具有抵抗嵌入其中的拉伸应力的结构并且在其一个面上具有齿形。 所述环形体的齿具有至少一个对应于其自身顶部的槽。
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公开(公告)号：US5421927A
公开(公告)日：1995-06-06
申请号：US983171
申请日：1992-11-30
CPC分类号： B29C69/001 , B29D29/08 , F16G1/28 , B29C2793/0063 , B29C47/0019 , B29C47/0021 , B29C47/0023 , B29C47/0026 , B29C47/0033 , B29C47/004 , B29C47/0066 , B29C47/02
摘要： In a process for manufacturing toothed belts of any length, a tubular sleeve comprising a layer of cords (1) and at least a layer of elastomeric material (2) is preformed in an autoclave without being vulcanized so as to produce, on the inner surface thereof, a plurality of grooves (5) spaced apart from one another according to a predetermined toothing pitch (P). The sleeve is helically cut to obtain a continuous strip (7) to be subsequently wrapped over two wrapping drums (8, 9) suitably spaced apart from each other depending on the circumferential extension to be given to the belt. The obtained annular element (10), when the wrapping has been completed, is trued up by means of the provided grooves, between a molding matrix (11) and opposite mould (12) and is submitted to a pressing step and simultaneous cross-linking of the elastomeric material (2) by closing said elastomeric material between the molding matrix (11) and opposite mold (12) according to stages in succession. Thus the complete formation of the teeth (3) on the inner side of the belt being worked occurs, as well as the firm bonding of the continuous loops (10a) formed by wrapping of the continuous strip (7).
摘要翻译： 在用于制造任何长度的齿形带的方法中，包括一层绳索（1）和至少一层弹性体材料（2）的管状套筒在高压釜中预成型而不被硫化以便在内表面 根据预定的齿距（P）彼此间隔开的多个凹槽（5）。 套筒被螺旋切割以获得连续的条带（7），随后被包裹在两个包装滚筒（8,9）上，这两个包裹滚筒（8,9）根据给予皮带的周向延伸部彼此适当间隔开。 通过所提供的凹槽，在模制基体（11）和相对的模具（12）之间，将所获得的环形元件（10）完成包装，并进行加压步骤并同时进行交联 通过根据连续的阶段在模制基体（11）和相对的模具（12）之间封闭所述弹性体材料来制造弹性体材料（2）。 因此，正在加工的带的内侧上的齿（3）的完全形成以及通过连续带（7）的包裹形成的连续环（10a）的牢固结合。
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10.发明授权Method and apparatus to check the state of wear in a covering fabric of a driving belt 失效检查驱动带的覆盖织物的磨损状态的方法和装置
公开(公告)号：US5307672A
公开(公告)日：1994-05-03
申请号：US922516
申请日：1992-07-31
CPC分类号： G01N27/20 , G01N3/56 , G01R27/025 , G01N2203/0222
摘要： A driving belt (2) operatively mounted on at least a first (3a) and second (4) pulleys electrically insulated from each other, is provided with an electrically conductive covering fabric acting in contact relationship with the pulleys. By applying an electric voltage to the pulleys (3a, 4) the electric resistance value offered by the belt (2) is detected and this value is compared with a reference value to which a given degree of wear of the belt corresponds. When the detected resistance value is greater than the reference value, a danger signal is emitted. The danger signal is inhibited during the belt operation and during a predetermined waiting time starting from the moment of the belt stopping in order to avoid the resistance detection to be altered by electrostatic charges present on one of the pulleys (3a, 4) and/or the high temperature in the vicinity of the belt (2).
摘要翻译： 可操作地安装在彼此电绝缘的至少第一（3a）和第二（4）滑轮上的传动带（2）设置有与滑轮接触的导电覆盖织物。 通过向皮带轮（3a，4）施加电压，检测由皮带（2）提供的电阻值，并将该值与带的给定磨损程度相对应的参考值进行比较。 当检测到的电阻值大于参考值时，发出危险信号。 在皮带操作期间和在从皮带停止的时刻开始的预定等待时间期间，危险信号被禁止，以避免电阻检测被存在于其中一个滑轮（3a，4）和/或 带（2）附近的高温。
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