SU1762069A1 - Mechanical lock - Google Patents

Abstract

Use: for fixing movable elements during autonomous actuation of a lock. Summary of the invention: when the lock is triggered, the spring-loaded holder 7 releases the head parts (HF) 9 force grippers, which under the action of the power drive through the spacer link 15 mutually diverge, interacting with conical locking surfaces 10 with the part 11 to be attached, draw it to the body. The final pressing of the attached part 11 and the fixation of the MS occurs due to the mutual movement of the conical thrust surfaces 14 of the spacer link 15 and the MS with the further action of the power actuator. Unlocking the lock occurs when the power actuator is terminated and the distance link is removed. When the attached part is removed, the HS is mutually intermixed and their initial fixation by a clip returned by the spring to the profile support surface. 1 il.

Description

The invention relates to mechanical locks (drives) with the translational movement of a movable body with an axial force applied to it, and can be used for fixing moving elements in mechanical, pneumohydraulic and other systems where tight connection of loaded parts is required.

A mechanical drive is used, which is used as a lock, in the case of which there are power grippers that interact with a spacer link associated with the case, equipped with a control device and a detachable (connected) part. Its disadvantage is the large dimensions and, therefore, the mass, since the external surface of the force grippers is completely made in the form of a torus.

A mechanical actuator used as a lock and selected as a prototype is known, in the case of which there are spring-loaded power grippers that interact with the head parts simultaneously with the part to be separated and the spacer link and the tail parts with the mechanical lock and power actuator equipped with a control device. Its disadvantages are the absence of an autonomous command to attach the part and the presence of a gap (play) between the force grippers and the distance link, which leads to the possibility of a gap between the attached part and the lock body and, consequently, to the connector leakage.

The aim of the invention is to improve performance by increasing the degree of tightness of the connector

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parts connected by a lock and autonomous operation of the control device.

This goal is achieved by the fact that, in a mechanical lock containing a power actuator, lever-type spring-loaded power grips axially located in the housing evenly around the circumference, the heads of the grippers are articulated in the tail sections of the lock and force actuator connections with locking surfaces to interact with the counter surface of the part to be joined, and, with opposite first resistant surfaces that are in contact with the conical working the surface of the head of the spacer link located along the axis of the connection and kinematically connected with the power actuator rod, as well as the control device according to the invention, the thrust surfaces of the gripping heads are angled to the axis of the connection corresponding to the angle of the conical working surface of the distance link , in the central part of each of the grippers, profile projections directed toward the periphery are made, which contain conjugate by means of straight sections, inclined to the axis of the joint and ne The control unit, which is pendicular to the latter, is made in the form of a spring-loaded casing relative to the body and covering the clamps, installed with a possibility of sequential contact with inclined and perpendicular support surfaces of the profile lugs, and the support surface for the part being joined is located on the corresponding end clips.

The drawing shows a cross section of a mechanical lock (the left half shows the initial position of the mechanical lock at the moment of the beginning of interaction with the part being attached, the right half shows the position after operation).

The lock consists of a body 1 with tail parts axially arranged and hinged in it evenly around the circumference of the tail parts of 2 spring-loaded lever-type power grips, in the central part of each of which are made toward the periphery profile protrusions containing conjugate straight parallel parallel 3 the coupling axes, inclined 4 and 5 and perpendicular 6 to it, the portions forming the bearing surface for the yoke 7 with the spring 8. The head parts 9 of the grippers having an inclined axis

the locking surface 10 holds the attached part 11, having a counter conical surface 12, In the head parts 9 of the grippers, made resistant surfaces 13 at an angle to the axis

connection, corresponding to the angle of the conical working surface 14 of the head of the expansion link 15 and opposite to the fixing surfaces 10. The expansion link 15 is kinematically connected with the rod

16 power drive.

Claims (1)

Claims of invention. A mechanical lock comprising a power drive axially located in the body is uniformly circumferentially spring-loaded lever arms of the lever type, the tail parts are hinged in interconnected lock and power drive bodies, the head parts of the arms are made with fixing surfaces inclined to the joint axis to interact with the counter surface of the part being joined and opposite to the first resistant surfaces in contact with the conical working surface of the head of the spacer link located along the axis of the joint and kinematically connected with the stock com power drive, as well as a control device, characterized in that, in order to improve performance by increasing the degree of tightness of the connector of the parts connected through the lock and ensuring autonomous operation of the control device, the thrust surfaces of the heads of the grippers are made at an angle to the axis of the joint, corresponding to the angle of the conical working surface of the head of the spacer the link, in the central part of each of the grips, are made to the periphery of the profile protrusions containing interfaced by means of straight sections inclined to the axis of the connection and perpendicular to the latter supporting surfaces, the control device is made in the form of a spring-loaded relative to the housing, covering the grips, the holder installed with the possibility of sequential contact, respectively, with inclined and perpendicular bearing surfaces of the profile protrusions of the grippers, and the supporting surface for attachable parts located on the corresponding end of the cage.