A load cell for determining a radial force acting on a crankshaft includes a receiving sleeve for receiving a ring of a bearing; a fastening ring for attaching the load cell in a transmission housing; axial support areas provided on the fastening ring for axially supporting the ring of the bearing; and measuring regions for receiving radial forces of the receiving sleeve and which connect the receiving sleeve with the fastening ring, wherein strain sensors are attached to at least two of the measuring regions; and wherein the measuring regions comprise measuring lugs formed as angle brackets.

A load cell for determining a radial force acting on a crankshaft includes a receiving sleeve for receiving a ring of a bearing; a fastening ring for attaching the load cell in a transmission housing; axial support areas provided on the fastening ring for axially supporting the ring of the bearing; and measuring regions for receiving radial forces of the receiving sleeve and which connect the receiving sleeve with the fastening ring, wherein strain sensors are attached to at least two of the measuring regions; and wherein the measuring regions comprise measuring lugs formed as angle brackets.

A drive includes an electric motor and a first gearbox that can be driven by the electric motor. An output shaft of the first gearbox is connected rotation-fast to a first shaft by a coupling, e.g., a rigid shaft coupling, and the first shaft is mounted by an axial bearing, e.g., a single axial bearing, that can be subjected to a force by at least one controllable first linear actuator.

A drive includes an electric motor and a first gearbox that can be driven by the electric motor. An output shaft of the first gearbox is connected rotation-fast to a first shaft by a coupling, e.g., a rigid shaft coupling, and the first shaft is mounted by an axial bearing, e.g., a single axial bearing, that can be subjected to a force by at least one controllable first linear actuator.

A three-dimensional force loading device for a motor spindle is provided, and relates to the field of motor spindle testing. The device including a bottom plate; a torque loading assembly configured for testing torque performance of the motor spindle, and the torque loading assembly is in transmission connection with the motor spindle; a sleeve shell rotatably sleeved on the motor spindle, the sleeve shell is fixed along an axis direction of the motor spindle; a radial force loading assembly configured for testing radial force performance of the motor spindle, and the radial force loading assembly is fixedly connected with the sleeve shell; an axial force loading assembly configured for testing axial force performance of the motor spindle; and a intermediate force transmission mechanism connected with the sleeve shell and the axial force loading assembly.

A three-dimensional force loading device for a motor spindle is provided, and relates to the field of motor spindle testing. The device including a bottom plate; a torque loading assembly configured for testing torque performance of the motor spindle, and the torque loading assembly is in transmission connection with the motor spindle; a sleeve shell rotatably sleeved on the motor spindle, the sleeve shell is fixed along an axis direction of the motor spindle; a radial force loading assembly configured for testing radial force performance of the motor spindle, and the radial force loading assembly is fixedly connected with the sleeve shell; an axial force loading assembly configured for testing axial force performance of the motor spindle; and a intermediate force transmission mechanism connected with the sleeve shell and the axial force loading assembly.

A measuring device with a crankshaft and a load cell for determining a radial force acting on the crankshaft having a receiving sleeve for receiving a bearing ring and a fastening ring for attaching the load cell in a transmission housing. Axial support areas are provided on the fastening ring for axially supporting the outer ring of the first bearing. Moreover, measuring regions for receiving radial forces of the receiving sleeve are provided which connect the receiving sleeve with the fastening ring. Strain sensors are attached to at least two of the measuring regions. An evaluation electronics is connected to the strain sensors.

A measuring device with a crankshaft and a load cell for determining a radial force acting on the crankshaft having a receiving sleeve for receiving a bearing ring and a fastening ring for attaching the load cell in a transmission housing. Axial support areas are provided on the fastening ring for axially supporting the outer ring of the first bearing. Moreover, measuring regions for receiving radial forces of the receiving sleeve are provided which connect the receiving sleeve with the fastening ring. Strain sensors are attached to at least two of the measuring regions. An evaluation electronics is connected to the strain sensors.

Systems and methods to test robotic end effectors may comprise a testing rig having variable mass properties. The testing rig may include a variable weight assembly and a movement assembly that can adjust a position or orientation of the variable weight assembly. In this manner, the testing rig can be modified to simulate or replicate mass properties of a plurality of items, and grasp performance of a robotic end effector may be measured using the testing rig. Further, simulation models of end effectors and items may be validated based on actual grasp performance of a robotic end effector and the testing rig having variable mass properties.

Systems and methods to test robotic end effectors may comprise a testing rig having variable mass properties. The testing rig may include a variable weight assembly and a movement assembly that can adjust a position or orientation of the variable weight assembly. In this manner, the testing rig can be modified to simulate or replicate mass properties of a plurality of items, and grasp performance of a robotic end effector may be measured using the testing rig. Further, simulation models of end effectors and items may be validated based on actual grasp performance of a robotic end effector and the testing rig having variable mass properties.