Apparatus for screw-coupling two heavy weight components having a common vertical axis
First Claim
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1. An apparatus for screw-coupling two heavy weight components having a common vertical axis, comprising:
- resilient, adjustable length means for keeping the components at an adjustable spacing from each other;
a rotary drive means for relatively rotating the components;
wherein the resilient means is also for maintaining forces, acting in an axial direction along the vertical axis between the components, below a threshold value;
a stationary member which is centered and fixed against rotation on one of the components;
a platform which is displaceable along the vertical axis and which supports at least the other of the components during the threading operation such that it can be rotated with respect to the platform about the vertical axis, the platform being supported in a vertical direction with respect to the stationary member by the resilient means; and
support means coupling the platform and the stationary member for guaranteeing torque support, permitting vertical movement, and ensuring centering between the platform and the stationary member, wherein the support means includes a plurality of link rods each of which is hingedly connected to the platform and the stationary member along the circumference of the stationary member.
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Abstract
Apparatus to screw heavy lids very sensitively on thick-walled receptaclesn order to avoid damaging the threads includes a stationary member centered on the receptacle and of an axially movable platform which is guided such that torques can be transmitted and the common axis always remains the same. Resilient members of adjustable length transmit mass forces in vertical direction exactly on the stationary member and prevent additional forces from acting on the flanks of the threads.
22 Citations
8 Claims
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1. An apparatus for screw-coupling two heavy weight components having a common vertical axis, comprising:
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resilient, adjustable length means for keeping the components at an adjustable spacing from each other; a rotary drive means for relatively rotating the components; wherein the resilient means is also for maintaining forces, acting in an axial direction along the vertical axis between the components, below a threshold value; a stationary member which is centered and fixed against rotation on one of the components; a platform which is displaceable along the vertical axis and which supports at least the other of the components during the threading operation such that it can be rotated with respect to the platform about the vertical axis, the platform being supported in a vertical direction with respect to the stationary member by the resilient means; and support means coupling the platform and the stationary member for guaranteeing torque support, permitting vertical movement, and ensuring centering between the platform and the stationary member, wherein the support means includes a plurality of link rods each of which is hingedly connected to the platform and the stationary member along the circumference of the stationary member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification