DD222063A1 - COMBINATION GRABGEFAESS WITH ROUNDING TOOTH - Google Patents

Abstract

The invention is used for hydraulically operated grave works of general purpose excavators and is particularly suitable for use in hard and frozen soils. The combination works without a locking device. The change of tearing and picking up the grave goods can be done in a very short time. At the back wall shields of the grave jar the Aufreisszahn is articulated. One or more spring cylinders, which are attached on the one hand to the Rueckwandschilden and on the other hand on Aufreisszahn move the Aufreisszahn in working position or in investment position. In the two positions of the ripping tooth is held by the spring or the cylinder. The spring cylinder consists of Zylindergehaeuse, plate spring, cylinder rod with swivel head and from clamping and lock nut.

Description

Title of the invention

Combination grave vessel with ripping tooth

Field of application of the invention

The invention is used for hydraulically operated grave equipment of general purpose excavators. It is particularly suitable for the use of universal dredgers in hard and frozen soil.

Characteristic of the known technical solutions

It is a combination tomb vessel with ripper tooth known in which the ripper is articulated on the same axis as the grave vessel on the dipper. The movement of the combination takes place via hydraulic cylinder, rocker arm and coupling »The ripper tooth can be connected to the grave vessel by means of hydraulic locking cylinders. Then the grave vessel is in working position and the Fang makes all working movements of the grave vessel with.

If the Fang should be brought into working position, then the lock between the grave vessel and Aufzißzahn is released and locks the grave vessel on a bearing block, which is attached to the dipper stick. The Fang is moved via hydraulic cylinder, rocker and coupling. The grave vessel is at rest. The solution has the disadvantage that an additional hydraulic locking device with control device must be present.

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These devices are very expensive and because they are in the grave area, also prone to failure.

The holes in the dipper stick, in the grave vessel and in the ripper tooth must be precisely fixed. "This is manufacturing-related, especially by rarely the Stahlbaua associated with a-high Pertigungsaufwand. _;

It is also known to hide the ripper manually © 4er exchange the grave vessel for a ripper tooth "These solutions require a lot of effort during conversion and Urarüstsborgang or change from tearing to recording

of the burial material or vice versa takes a certain time in arrival. spell, which means a reduction in performance of the device.

Object of the invention

The aim of the invention is to bring without hydraulic or mechanical locking device trouble-free and quickly applied to the grave vessel Aufreißsahn in working position or vice versa

The elimination of the hydraulic locking device, the manufacturing cost of the combination can be reduced · The change between tearing and picking up the grave goods can be done in no time, which means an increase in performance of the device.

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The invention has for its object to provide a combination grave vessel with Aufreiözahn, in which a grave vessel; articulated Aufreißzahn without additional manual or hydraulic actuation with the aid of the kinematic conditions of the hydraulic equipment in working position or worked on the grave vessel and can be kept in these end positions ¹ .

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At the back wall shields of the grave vessel the Aufreißzahn is hinged. One or more spring cylinders are fastened on the one hand to the back wall shields and on the other hand to the tear-open tooth.

In the working position of the grave vessel, the rip-off tooth is supported on the grave vessel rear wall. If it is to be brought into working position, then the grave vessel is tilted by pressing the working cylinder against the grave vessel handle and by operating the remaining cylinder, the foot part is driven against the ground or an abutment, wherein the fang is pivoted about its pivot point from the grave vessel. The spring cylinder is biased until it reaches the dead center and when it exceeds the same Aufreißzahn is folded into the working position and held there. The procedure is similar when folding back the Aufzißzahnes to the grave vessel.

In the working position, the fangs are supported by abutments on the rear wall shields located on them. The Peder cylinder consists of cylinder housing, disc spring, cylinder rod with swivel head and from clamping and locknuts. The cylinder rod is guided on the one hand in the clamping plate and on the other hand in the plate spring and is arranged to be pulled out.

embodiment

The invention will be explained in more detail using an exemplary embodiment. In the accompanying drawing show: Pig. 1: Combination grave vessel with ripping tooth, grave vessel in working position,

Pig. 2t the fang in working position, Pig. 3: the peder cylinder.

The grave vessel 1 is pivotally connected with its Rückwanäsch 2 over the pivot point 3 with the grave vessel stem 4, it is connected by the hydraulic cylinder 5 via the rocker 6 and the coupling 7 which is pivotally connected to the Rückwandschilden 2 in the articulation point. The Aufzißzahn 9 is pivotally mounted at the pivot point 10 in the back wall shields 2 of the grave vessel 1, and it is held by the one or more prestressed spring cylinder 11 in the investment position shown in Pig «1.

The Federzylinäer can be designed as a mechanical spring, hydraulic spring or pneumatic spring and it is mounted in ι pivot point 12 on the back wall shields 2 and is connected via the bearing 13 with the Aufreißzahn 9. In plant position - the grave vessel is in working position, the tearing tooth 9 is supported on the rear wall of the grave vessel ¹ ·

If the ripper tooth 9 folded down, brought into working position, then the grave vessel 1 is tilted by pressing the hydraulic cylinder 5 against the grave vessel stem 4 and brought by operation of the other not shown working cylinder of the grave equipment in a position in which the on the contours of Eückwandschilde 2 protruding foot portion 15 of the Aufreißzahnes 9 is pressed against the ground or an abutment j wherein the Fang 9 is pivoted away about the pivot point 10 from the grave vessel 1 »Until reaching the dead center of the prestressed spring cylinder 11 is further biased. If the dead center is exceeded, then the tear-open tooth 9 folds into the position shown in FIG. 2, which represents the working position. In this working position, the tearing tooth 9 is supported by the abutment 14 located at the foot part 15 on the rear wall shields 2 of the grave vessel 1,

In order to fold the tear-open tooth 9 back against the rear wall of the grave vessel 1, it is pressed against the ground using the kinematic conditions of the grave armor and moved in the direction of the grave vessel 1. The prestressed Peder cylinder 11 is biased until reaching the dead center \ eiter, this is exceeded, then the Aufreißzahn 9 works under the action of the prestressed spring cylinder 11 against the grave vessel 1 ♦

The preferably mechanical LösWg of the spring cylinder 11 consists of the cylinder housing 19 with arranged therein cylinder rod 20 with swivel head 21 and arranged therein plate spring 25 and clamping plate 24. With the Anlenkbohrung 17 of the spring cylinder 11 is attached to the pivot point 12 and with the bearing bore 18 at the bearing point 13. About the clamping nut 22, the required bias of the plate spring 25 is generated, the clamping nut 22 is secured by a lock nut 23. The clamping plate 24 is held against falling out of the cylinder housing 19 by a securing element 16.

The cylinder rod 20 is guided in the front area in the clamping plate and in the rear area in the plate spring 25. dO The spring cylinder 11 can be completely relaxed in the end positions and is thus easy to assemble and disassemble.

Claims (2)

invention claim 1. Combination grave vessel with ripper tooth for a hydraulically operated grave equipment of a universal excavator, wherein the ripper tooth is arranged in the rear region of the grave vessel, characterized in that the Aufzißzann (9) in the articulation point (10) arranged in rear wall shields (2) is, is pivotally mounted, one or more prestressed spring cylinders (11) on the one hand attached to Riickwandschilden (2) pivot point (12) and on the other hand. About a bearing point (13) with the Aufzißzann (9) is connected and for support the Aufzißzahnes (9) in working position, on the foot part (15) an abutment (14) is arranged. 2. Combination according to item 1, characterized in that the spring cylinder (11) of a cylinder housing (19) ι from plate spring (25), cylinder rod (20) with swivel head (21), from clamping nut (22) and from lock nut (23) sees and the cylinder rod (20) in the region of the clamping nut (22) in the clamping plate (24) and on the other hand in the plate spring (25) guided and arranged to be pulled out. Soap s