DD131550B1 - GRIPPERS WITH AUTOMATIC PRELUDE AND RELEASE - Google Patents

Description

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Field of application of the invention

The application of the invention is everywhere where standardized components loaded without a striker by means of a hoist, stacked or transported. The use of the gripper according to the invention is particularly recommended for the transposition of radioactive waste filled in cylindrical standard packagings (for example barrels, metal drums and the like), since a corresponding safety distance from persons (slingers) to the radiation sources is required on the basis of radiation protection requirements.

Characteristic of the known technical solutions The known grippers in use are locked and unlocked by hand, hydraulically or electromechanically. From the DL-PS 85 420 is also a device for automatic locking and unlocking of grippers, the pliers in a certain rhythm of the forceps movement of the gripping and AbsetζVorgangen depends known. This device consists of a large number of complicated components, which require a high level of maintenance and servicing. Furthermore, it contains several parts that are subject to increased wear. Another shortcoming is in addition to the large height of the device, the small stroke (Sp), this solution allows and thus keeps the possible opening width of the gripper elements very low, which in turn complicates the positioning of the gripper on the cargo (striking).

Object of the invention

The aim of the invention is to eliminate the deficiencies of the prior art by a comparison with the simplified in the DL-PS 85 420 device.

Explanation of the essence of the invention

The invention has for its object to provide a gripper, which is by means of a simple maintenance-free and the harsh operating conditions in use as a load receiving means sufficient mechanical switching device without manual or foreign energy control, standardized components, especially Pässer, safely record and sell.

According to the invention the object is achieved in that the gripper combines a Transportgutaufnehmer (lower part) and a mechanical switching device (upper part), both of which are rigidly connected together by a splashing, in it. The adaptation to different pass sizes (0) is carried out by the replacement of corresponding gripper lower parts.

In the switching device, consisting of a housing in which a sleeve received by means of sleeve shift sleeve is rotatably and non-displaceably, a tension bolt is slidably and rotatably guided, at its protruding from the switching device upper end of a clevis as a suspension of the gripper (load hook connection) is screwed. At the lower end of the tie bolt in a division of each 120 ° 3 piece coupling linkage are pivotally mounted, the free ends are eccentrically attached to the hook in the hook base hooks and thus create a connection between the tie bolt and hook hook. Furthermore, the invention provides that the displaced in the switch housing shift sleeve is provided with introduced in two end faces notches, which are matched with 2 pieces in the tie bolt and mutually protruding cylinder pins in operative connection, each end face of the shift sleeve is associated with a cylinder pin ·

The invention will be explained below with reference to an embodiment. In the accompanying drawings show:

Fig. 1: View of the gripper - gripper hook closed

Fig. 2: Detail gripper mounted on passport and gripper holding closed

Pig. 3: View of the claw - claw hook opened Pig. 4: top view of the gripping lever

Pig. 5: Vertical section through the switching device Pig. 6: Carrying sleeve with integrated switching sleeve

Pig. 7: Unwinding of the shift sleeve with two positions of the tension bolt - locked and unlocked

The gripper according Pig * 1-7 is suspended by means of load hook on a lifting device, not shown (crane, etc.) on the clevis 5. The mechanical switching device as a gripper upper part consists of a switch housing 1, in the interior of a support sleeve by means of two deep groove ball bearings 6 and a spacer sleeve 17 and a cap nut 16 is rotatably and non-displaceably mounted. In the support sleeve 3, a shift sleeve 4 is fitted, in whose oberei? Front side, the switching notches 22 and in the lower end locking notches 20 and Entriegelungskerben 21 are incorporated. Attached is the shift sleeve 4 in the support sleeve 3 by four pieces scored pins 18th

The planch 7 forms with the slotted support tube 8 and the three pieces in a 120 ° graduation on the support tube 8 fixed arms 9, the gripper lower part and is attached to the connecting flange of the Sehaltgehäuses 1 by means of screw connection. In the outer part of the boom 9, a hook hook 10 is pivotally displaced. In the shift sleeve 4, a tension bolt 2 is guided, the upper end of the Gabelkcpf 5 receives. At the lower end of the tie bolt are hinged according to the position of the boom 9 three coupling linkage, which create a Y / irkungsverbindung between the tie bolt 2 and located in the arms 9 hook hook 10. Desv / citeren are in the tie bolt 2, the cylinder pins 12 and 13 fitted at a corresponding distance from each other, engage on both sides protruding ends in a vertical movement of the tie bolt 2 in the notches 20, 21, 22 of the shift sleeve 4.

The puncture of the gripper is the following:

When positioning the gripper over the passport 19, the gripper hooks 10 are opened. This is effected by the draw bolt 2 is held by means of a cylindrical pin 13 in the locking notches 20 of the shift sleeve 4 (position 2a) and holds the hooks 10 in the outwardly pivoted position via the coupling linkage 11 (opened). The positioning and centering of the gripper on the passport 19 is favored by the obliquely downwardly extended boom ends 9 (introduction bevels).

With the attached below the arms 9 counter-holders 15 of the gripper is on the cover of the passport 19. The thus relieved tension bolt 2 moves by its own mass down, the cylinder pin 13 is led out of the locking notch 20. At the same time, the cylinder pin 12 sets on the oblique plank of the Umschaltkerbe 22 and causes when sliding into the notch base, a twisting of the shift sleeve 4, so that now over the cylinder pin 13, the Entriegelungskerbe 21 is positioned. When lifting the gripper, the pull bolt 2 first moves upwards and pulls the cylinder pin 13 over the oblique plank of the unlocking notch 21 in the direction of the notch bottom (position 2b). This causes a further rotation of the shift sleeve (4), whereby under the cylinder pin The upwards movement (stroke) of the tension bolt 2 causes the hook hooks 10 to be pivoted inwardly about their articulation point (closed) via the coupling linkage 11. The shape of the hook hook adapted to the paßbund allows the paßbund to be enclosed The hook hooks 10, which engage in a pitch of 120 ° in each case, realize a secure pivoting suspension and avoid undesired deformation of the passport 19. In addition, the Paßbund is stabilized by the counterholds 15 resting against it from the inside.

Reaching the bottom of the Entriegelungskerbe 21 through the cylinder pin 13, that is, the burden of the shift sleeve 4 is avoided by the stroke limitation planing 14 against splashing 7. When depositing the passport 19, the tension bolt 2 is relieved and falls by its own mass down. The gripper

hook 10 pivoted on the coupling rod 11 to the outside (opened). The cylinder pin 13 is led out of the Entriegelungskerbe 21 down and the Sylinderstift 12 is based on the oblique plank of a Umschaltkerbe 22, wherein he causes by sliding into the notch base further rotation of the shift sleeve 4, above the cylinder pin 13 is now again the locking notch 20. T / is now the gripper raised again, the draw bolt 2 engages by means of cylindrical pin 13 in the locking notch 20 and thus reaches the starting position 2a. When the hook position is open, the gripper lifts off the pass.

Claims (1)

invention claims 1. gripper with automatic locking and unlocking, the GreifereHemente close and open in a dependent on the gripping and Absetzvorgang rhythm, consisting of a switching device containing.Upper and a standing in operative connection with the switching device lower part, which serves to load, characterized in that in the housing (1) a support sleeve (3) and the switching sleeve (4) fixedly connected thereto via the grooved pins (18) are provided on the upper end face with switching notches (22) and on the lower end face with unlocking notches (21) and Locking screed (2o) is provided by means of deep groove ball bearings (6), the Distanzbuch.ee (17), the cap nut (16) and the flange (7) slightly rotatable, but not axially displaceable, are arranged, that the shift sleeve (4) a non-rotatably but vertically displaceable draw bolt (2) aufnimrit adapted by means of zv / ei in a corresponding Abctand to each other and with both ends via de n tensile bolts (2) protruding Zy] inderstiften (12, 13) with a corresponding vertical movement mutually engaged in the notches (2o, 21, 22) of the shift sleeve (4) and this thereby in a continuous change in the Verriogelungsstellung (2o) or Entriegelungsctellung ( 26) brings and that at the upper end of the tie bolt (2) a clevis (5) as load hook connection and at the lower end by 12o ° offset three Koppelgestllnge (11) are pivotally mounted and the Koppelgestlmgo (11) within three arms (9 ) and in these the rods of the Koppe ¹ (11) moved, eccentrically pivotally mountedon Groiferhaken (1ο) are arranged to Lastaufnähme » Gripper with automatic pre-locking and unlocking according to item 1, characterized in that the lower part formed by the jib (9) and the grab hook (1o) and the coupling bars (11) formed therewith are replaceable and thus adaptable to the respective transport item is. For this ... A._Seiten drawings