CS238996B1 - Hydraulic block control device for hydraulic grabs - Google Patents

Abstract

The control device of the hydraulic block is intended mainly for controlling hydraulic grabs. In the distribution body (1) there is a lower opening pipe (13) with an opening throttle valve (6) and a lower closing pipe (14) with a closing throttle valve (7)* where a valve body (3) is connected after the opening and closing throttle valves (6, 7), while the lock bodies (2) with a hydraulic opening lock (4) and a hydraulic closing lock (5) are connected to the outlet of the lower opening pipe (13) and the lower closing pipe (14) and further in the distribution body (1) there is an upper opening pipe (15), an upper closing pipe (16) with a throttle valve (12). an opening control pipe (17), closing pipe controllers (18) and a waste pipe (19).

Description

The invention solves a hydraulic block control device for hydraulic grabs, wherein the individual hydraulic elements are arranged so that they are accessible for any manipulation with them, further that a minimal built-up space is achieved and at the same time it is possible to connect its hydraulic elements of different parameters relatively wide applicability.

Previously known embodiments of the hydraulic blocks for grabs are designed in such a way that the individual hydraulic elements are interconnected by a pipe connection, which results in a large built-up space and at the same time makes it difficult to handle the individual hydraulic elements. Pipe coupling of hydraulic elements is also an essential source of various failures. Another known design of the hydraulic blocks for grabs is designed as a compact unit, where all the hydraulic elements are made in one basic body, which if necessary results in the dismantling of the entire hydraulic block and at the same time eliminates the possibility of replacing only individual hydraulic elements. At the same time, such a hydraulic block excludes its design for single-purpose use due to the impossibility of replacing individual hydraulic elements.

The above-mentioned drawbacks are overcome by the arrangement according to the invention in that a lower opening pipe with an opening choke is provided in the manifold and a lower closing pipe with a closing choke, wherein a valve body is connected downstream of the opening and closing chokes. and lower closing pipes are connected lock bodies with a hydraulic opening lock and a hydraulic closing lock, and furthermore, an upper opening pipe, an upper closing pipe with a throttle valve, an opening control pipe, a closing control pipe, and a drain pipe are provided in the manifold.

The advantage of such a hydraulic block arrangement for hydraulic grabs is in particular that the individual hydraulic elements used in this system are rigidly connected to each other, and the hydraulic clamp control unit of the hydraulic grab block is always provided with only such hydraulic elements that use.

Such an embodiment simultaneously results in a reduction of the built-up space, as well as the use of hydraulic elements of different parameters, and thus a wide application in the field of hydraulic gripper control devices.

238 996

An exemplary embodiment of the device according to the invention is shown in the accompanying drawing, in which Fig. 1 shows the assembly of the hydraulic control circuit, Fig. 1 shows the spatial arrangement of the hydraulic block assembly <>

The manifold body 1 is connected to the inlet manifold opening A and the inlet manifold opening 4, through which the entire hydraulic circuit is supplied with pressure fluid from a pressure source »In the manifold body there is a lower opening pipe 13 together with an opening throttle valve The closing body 14 together with the closing choke 2 is connected to the valve body 1 by a valve body 6 after the closing choke 2 and the opening choke 6. In the valve body J there is an opening safety valve 8, a closing safety valve 2 »a discharge control valve 10 and a non-return valve 11, the outlet of which is connected to an outlet pipe. this is connected the lock body 2 ⁱⁿ ® which is a hydraulic lock opening £ and hydraulic lock closing £ »Control conduit opening 12 made in the body of the distribution 1 * is connected with the lower duct opening 13 with a hydraulic lock closing £ ₀ control line closure 18 made in the distribution body 1, the lower closing pipe 14 is connected with the hydraulic opening lock 8 »Further, in the distribution body 1 there is a drain line 12 connecting the hydraulic opening lock 8 and the hydraulic closing lock 8 with the drain line 2» The top closing pipe 16 provided in the body 1 of the manifold 1 together with the throttle valve 12 connects the hydraulic closing lock 8 to the outlet outlet closing. D, which is connected to a pressurized fluid consumer, for example a linear hydraulic motor

The invention can be advantageously used in mechanical engineering, in particular in the design of control devices for hydraulic grabs »

Claims (1)

Object of the invention 238 996 Hydraulic block control device for hydraulic grabs, in which the grab grippers are opened and closed by a plurality of linear hydraulic motors, characterized in that a lower opening pipe (13) with an opening choke valve (6) and a lower closing pipe (14) is provided in the distributor (1). ) with a closing choke (7), wherein a valve body (3) is connected downstream of the opening and closing chokes (6,7), and lock bodies (3) are connected to the outlet of the lower opening pipe (13) and the lower closing pipe (14). 2) with the hydraulic opening lock (4) and the hydraulic closing lock (5), and in addition, the upper opening pipe (15), the upper closing pipe (16) with the throttle valve (12), the opening control pipe ( 17), the closing control pipe (18) and the discharge pipe (19) o