公开(公告)号：WO2014076683A1

公开(公告)日：2014-05-22

申请号：PCT/IB2013/060244

申请日：2013-11-19

Applicant: MAINA ORGANI DI TRASMISSIONE S.P.A.

Inventor： PADOVAN, Cesare

IPC: F16D7/04 ,  F16D43/286

CPC classification number: F16D7/044 ,  F16D43/286

Abstract: The safety coupling (10) comprises: a first coupling part (12) and a second coupling part (14) which are arranged coaxially with each other so as to rotate about a same axis of rotation (x) and are provided with respective front teeth (20, 62); and torque- sensitive releasing means (44, 64, 70, 72) designed to uncouple the first coupling part and second coupling part, thus interrupting the transmission of the torque, when the torque transmitted between the two coupling parts exceeds a given maximum torque value. The torque-sensitive releasing means include: a plunger (44) which is permanently connected for rotation with the second coupling part and is slidable along the axis of rotation between a normal working position, in which it ensures that the two coupling parts are coupled for rotation with each other, and a safety position, in which it uncouples the two coupling parts; a pressure chamber (64) filled with incompressible fluid such as to apply on the plunger a force tending to keep the plunger in the normal working position; and valve means (70, 72) adapted to allow the fluid to be discharged from the pressure chamber, and hence the plunger to be moved from the normal working position to the safety position when the pressure of the fluid in the pressure chamber exceeds a given maximum pressure value, the maximum torque value being linked to the maximum pressure value. The front teeth are first front teeth (20) provided on the first coupling part and second front teeth (62) provided on the plunger, which teeth directly mesh with each other when the plunger (44) is in the normal working position.

Abstract translation: 安全联轴器（10）包括：第一联接部件（12）和第二联接部件（14），它们彼此同轴设置，以绕相同的旋转轴线（x）旋转，并且设有相应的前齿 （20,62）; 以及扭矩敏感释放装置（44,64,70,72），其被设计成当所述两个联接部件之间传递的扭矩超过给定的最大扭矩值时，使所述第一联接部件和所述第二联接部件脱开，从而中断所述扭矩的传递 。 转矩敏感的释放装置包括：柱塞（44），其永久地连接以与第二联接部件一起旋转，并且可以在正常工作位置之间沿着旋转轴线滑动，在该工作位置确保两个联接部件联接 彼此之间旋转，以及安全位置，其中它将两个联接部分分开; 填充有不可压缩流体的压力室（64），以在柱塞上施加趋于将柱塞保持在正常工作位置的力; 以及阀装置（70,72），其适于允许流体从压力室排出，并且因此当压力室中的流体的压力超过给定值时，柱塞将从正常工作位置移动到安全位置 最大压力值，最大扭矩值与最大压力值相关联。 前齿是设置在第一联接部上的第一前齿（20）和设置在柱塞上的第二前齿（62），当柱塞（44）处于正常工作位置时，该齿彼此直接啮合。

公开(公告)号：WO2009144686A1

公开(公告)日：2009-12-03

申请号：PCT/IB2009/052298

申请日：2009-06-01

Applicant: MAINA ORGANI DI TRASMISSIONE S.P.A. ,  PADOVAN, Cesare

Inventor： PADOVAN, Cesare

IPC: F16D7/04

CPC classification number: F16D7/044

Abstract: The safety coupling includes a driving part (10) and a driven part (12) able to rotate around the same rotation axis (X) and respectively provided with first torque transmission means (14, 24) and with second torque transmission means (30, 36, 40, 52, 60, 62) having front toothings (24, 40, 60, 62) normally meshing with each other for the transmission of torque between the two parts of the coupling (10, 12). The safety coupling also includes torque- sensitive opening means (66, 72, 110) arranged to disengage the front toothings (24, 40, 60, 62) of the first (14, 24) and second (30, 36, 40, 52, 60, 62) torque transmission means, thus interrupting the torque transmission, when the torque transmitted between the two parts of the coupling (10, 12) exceeds a given maximum value. The torque-sensitive opening means (66, 72, 110) include a pressure chamber (66) filled with incompressible fluid and valve means (110) suitable for allowing the discharge of the fluid from the pressure chamber (66) once a given maximum fluid pressure value (p t ) has been exceeded in the pressure chamber (66). The pressure of the fluid in the pressure chamber (66) exerts a force on the front toothings (24, 40, 60, 62) of the first (14, 24) and second (30, 36, 40, 52, 60, 62) torque transmission means tending to keep the front toothings meshing for the transmission of the torque between the two parts of the coupling (10, 12), and the torque transmitted between the two parts of the coupling (10, 12) through the front toothings (24, 40, 60, 62) of the first (14, 24) and second (30, 36, 40, 52, 60, 62) torque transmission means produces an increase in the pressure of the fluid in the pressure chamber (66) proportional to the torque transmitted, in such a way that the maximum torque value is linked to the maximum pressure value (p t ).

Abstract translation: 安全联轴器包括能够围绕相同旋转轴线（X）旋转并分别设置有第一扭矩传递装置（14,24）的驱动部分（10）和从动部分（12），并且具有第二扭矩传递装置（30， 具有通常彼此啮合的前齿条（24,40,60,62），用于在联轴器（10,12）的两个部分之间传递扭矩。 安全联接器还包括扭矩敏感的开启装置（66,72,110），其被布置成使第一（14,24）和第二（30,36,40,52）的前齿轮（24,40,60,62） ，60,62）扭矩传递装置，从而当联接器（10,12）的两部分之间传递的扭矩超过给定的最大值时，中断转矩传递。 扭矩敏感开启装置（66,72,110）包括填充有不可压缩流体的压力室（66）和适于允许从压力室（66）排出流体的阀装置（110），一旦给定的最大流体 在压力室（66）中已经超过了压力值（pt）。 压力室（66）中的流体的压力对第一（14,24）和第二（30,36,40,52,60,62）的前齿（24,40,60,62）施加力 ）扭矩传递装置倾向于保持前齿轮啮合以在联接器（10,12）的两个部分之间传递扭矩，并且通过前齿轮传递在联接器（10,12）的两个部分之间的扭矩 第一（14,24）和第二（30,36,40,52,60,62）扭矩传递装置（24,40,60,62）产生压力室（66）中的流体压力的增加 ），使得最大扭矩值与最大压力值（pt）相关联。