SU1402532A1 - Grab suspension - Google Patents

Description

(21) 4163691 / 30-11

(22) 12/24/86

(46) 06/15/88. Bul No. 22

(71) Ukrainian Agricultural Academy

(72) V.N. Begeb, V.F. Yaroshenko, V.N.Rybalko, K.K.Rityns ::

and M.A.Belorussova

(53) 621.86.063 (088.8)

(56) USSR Author's Certificate No. 358244, cl. In 66 C 1/00, 1970.

(54) GRIPPER SUSPENSION

(57) The invention relates to suspensions of load-handling devices of loading machines and can be applied in various industries of the agricultural and forestry industries, in particular during the loading and unloading of timber. The purpose of the invention is to improve the operational capabilities by fixing an empty grab on the boom of a lifting machine. The grapple suspension contains a platform 4 suspended on inclined flexible chains x 6 to the boom 7 of the load lifting machine. On the upper part of the platform, an emphasis 5 in the form of a sphere is installed. An arrow plate 8 is placed on the boom, the spherical socket of which is matched with the stop, while the radius of the spherical socket corresponds to the radius of the spherical stop. The device is equipped with a flexible spring-loaded thrust 9 of adjustable length, one end of which is connected to the upper part of the support, and the other through an opening in the center of the socket is connected to the boom by means of a threaded pin 10 and a spring

11. 1 IL.

S s

(L

The invention relates to suspensions of load handling devices of loading and unloading machines and can be used in various industries, agriculture and forestry, in particular, during the loading and unloading of timber.

The aim of the invention is to improve the operational capabilities by fixing an empty grab on the boom of a lifting machine.

The drawing shows a schematic suspension grapple.

The grapple suspension includes jaws 1, a hydraulic cylinder 2 for controlling the jaws, a mechanism 3 for turning the grapple, a suspension platform 4. On the upper plane of the platform 4, an emphasis 5 is made with a radius depending on the grab loading capacity. The platform 4 is guided to the boom 7 by means of four inclined chains 6. In arrow 7, a stop plate 8 is fixed with a socket having a through hole in the center. The nest is made of antifriction material and can be sectionioin. The radius of the socket corresponds to the radius of the stop 5. The dimensions of the contacting spherical surfaces of the stop 5 and the socket are determined from the permissible specific pressure condition and depend on the loading capacity of the mechanism and the pair of friction materials. On

the surfaces of the spheres can be applied, - an emphasis matching with the support plate.

elements that increase the frictional resistance of parts. To the upper part of the stop 5 is attached flexible ha ha 9, for example a chain connected to

placed on the boom, so that, in order to improve the operational capabilities by fixing the empty grab on

boom through threaded-Q boom lifting machine, resistant

10 and springs 11, the compression force of which is regulated by the nut 12. The spring rests on the boom. Initial shrinkage of the spring 11 should provide

the plate is made with a spherical nest, and the stop has the shape of a sphere with a radius corresponding to the radius of the spherical nest, and the device

The closure of the contacting spherical D5 is equipped with a flexible spring-loaded hard surface of the stop 5 and the support plate 8 in the absence of a load in the jaw x of the grapple.

The device works as follows.

Compiled by V. Scherbakov

Tehred M. Khodanych

Editor L.Povkhan

adjustable length, installed at one end on the boom, passed through a hole in the center of the slot and connected to the other end with an emphasis in its upper part.

Proofreader, S. Shekmar

The operator boom 7 and the mechanism of 3 turns makes a tip, grapple on the captured cargo. In this case, the grapple suspension by means of a spring 11, a finger 10 and a flexible rod 9 ensures the frictional closure of the stop 5 with the support plate 8. Such a connection ensures a stable position of the grapple when targeting it to the load and reducing the time required to seize the load. During the seizure of cargo, the boom 7 pressure head is used, which reduces the time and increases the grab fill ratio.

After capturing material provo. The lifting of the grapple with the load and turning to the place of unloading. In this case, the spring 11 of the grapple suspension is compressed by the force of gravity of the lifted load and the grapple, and the contacting spherical surfaces are opened, and the load and grapple are suspended on five chains, thus reducing the dynamic loads on the elevator design when the boom turns and turns grapple with a load.

Claims (1)

Invention Formula The grapple suspension, containing a suspended platform, inclined flexible elements connecting this platform with the boom of a lifting machine, mounted on the platform placed on the boom, so that, in order to improve the operational capabilities by fixing the empty grab on the plate is made with a spherical nest, and the stop has the shape of a sphere with a radius corresponding to the radius of the spherical nest, and the device Equipped with a flexible spring loaded pull adjustable length, installed at one end on the boom, passed through a hole in the center of the slot and connected to the other end with an emphasis in its upper part. Proofreader, S. Shekmar