RU2669882C1 - Clamp front-end tool for the pipes capturing and transportation from the field mainline pipelines various kits - Google Patents

Abstract

FIELD: transportation.SUBSTANCE: invention relates to the field of handling equipment. Clamping device for the pipes grasping and transporting comprises bearing beam with the welded in centering device, suspended on the hook and guiding the beam axis to the parallel to the pipe axis position. On the beam each side, using two chain two-branch lines, the two-arm clamps are suspended, consisting of body having a number of paired holes corresponding to the pipes to be transported different diameters, and equipped with the automatic lock in the form of spring-loaded ball to hold the fixed in the body holes hinged gripping arms. In the open state, with the device placing over the pipe, with the clamp lowering onto the pipe body, a spring stop is actuated, with the spring adjustable stiffness, with the help of a nut for the held by the latch in the opened state hinge levers unfastening.EFFECT: enabling the automatic control during the pipes capturing and transportation, as well as expansion of the transported pipes diameters range (102 mm, 152 mm, 219 mm).1 cl, 4 dwg

Description

The invention relates to the field of material handling equipment and can be used to increase the operational efficiency of the various sets of field trunk pipelines used. This tick-borne load gripping device is used for unloading from a car body using a crane of a manipulator and laying out pipes on a pipeline route during deployment, as well as loading it into a car body when dismantling a pipeline.

A semi-automatic device for transporting pipes is known from the prior art, including pincers pivotally mounted on a semicircular body of a two-branch sling, a manual latch, and earrings. To capture pipes of different diameters, replaceable pads are installed on the pincers in the lower part [A.N. Vineson, A.F. Andreev Crane lifting devices. Directory. - M .: Engineering, 1982, 304 s].

The disadvantage of this technical solution is the manual execution by the slinger of the latch for controlling the levers when capturing and opening the pipe cavity, which naturally reduces the level of operational safety of the device. In addition, for gripping and transporting pipes of various diameters, installation of overlays on the lower parts of the levers is required, which does not allow the use of a device with a larger range of pipe diameters.

Known hydraulic rotary grapple [patent for invention US 4426110 (01/17/84)]. The device comprises a base on which the jaws are movably fixed, a rotator with a device for attachment to a lifting machine, two hydraulic cylinders, with one end movably mounted on the base, and the other on the jaws. The advantages of the device are its robust design and the ability to rotate around a vertical axis.

The disadvantage is that the device can only be used as a hydraulic grab and excludes the use of a crane device as well as a change to the beam used for loading pipes.

The purpose of the invention is to equip the device with automatic control when capturing and transporting pipes, as well as expanding the range of diameters (102 mm, 152 mm, 219 mm) of the transported pipes.

This goal is achieved by a tick-borne device for gripping and transporting pipes consisting of: a supporting beam, with a welded centering device, hung on the hook and pointing the yoke axis in a position parallel to the pipe axis, on each side of the beam, using two-chain double-strand slings, two-lever mite hooks are suspended , consisting of a housing having a number of pair of holes corresponding to different diameters of the transported pipes, and equipped with an automatic lock in the form of a spring-loaded arica to keep the articulated grip levers fixed in the holes of the casing in the open state when the device is placed above the pipe, with the possibility of lowering the tongs of grip on the pipe body, a spring stop is activated with adjustable spring stiffness, using a nut, to unlock the articulated levers held by the latch in open state.

These signs are essential for solving the problem of the alleged invention, because:

1. A number of pair of holes are made on the housing of the double-lever tick-borne grip, into which the articulated grip levers are bolted.

When changing the fastening in different pairs of holes, the diameter of the captured pipe changes. This is necessary in order to ensure the operation of the tick-borne gripping device with pipes of various diameters (102 mm, 152 mm, 219 mm) used in field trunk pipelines.

2. To hold in the open state, the articulated levers are fixed to each other by a spring-loaded ball retainer. The stiffness of the spring is regulated by a nut to unlock the levers from the pressure force of the gripping weight.

3. In the middle of the housing of the double-lever tick-borne grip, in its lower part, a spring-loaded stop is mounted, which, with the possibility of lowering the tick-borne gripper on the pipe body, provides the pressure force of the gripping weight necessary to open the articulated levers.

Thus, all the features indicated in the claims are necessary together to solve the problem of the invention.

In FIG. 1 shows a schematic diagram of the proposed tick-borne load gripping device, in FIG. 2 is a diagram of double-lever tick-borne grippers suspended by a double-branch line (side view), in FIG. 3 is a diagram of a spring loaded ball retainer (top view), FIG. 4 is a diagram of a spring-loaded stop.

The tick-borne device for gripping and transporting pipes is: a supporting beam 1 (Fig. 1) (in Fig. 2, Fig. 3, Fig. 4 not shown), with a welded centering device 2 (Fig. 1) (in Fig. 2 , Fig. 3, Fig. 4 (not shown), mounted on a hook (not shown) and pointing the yoke axis to a position parallel to the axis of the pipe 3 (Fig. 1) 6 (in Fig. 2, view A) 15 (Fig. 4) (Fig. 3 not shown), on each side of the beam, using two double-branch chain slings 4 (Fig. 1) 7 (in Fig. 2) (Fig. 3, Fig. 4 not shown), double-lever tongs consisting of case 5 (Fig. 1) 8 (f Ig. 2 view. A) 16 (Fig. 4), having a number of paired holes 6 corresponding to different diameters of the transported pipes, equipped with an automatic lock 12 (Fig. 3, view. B) in the form of a spring-loaded ball for holding the articulated levers 10, 11 (Fig. 2 view. A) 13, 14 (Fig. 3, view. B) 17.18 (Fig. 4, view. C) grippers fixed in the openings of the housing, in the open state when the device is placed above the pipe with the possibility of lowering tick-borne capture on the body of the pipe is activated by a spring stop 19 (Fig. 4, view. C) with adjustable spring stiffness using a nut to unlock the articulated levers held by the latch in the open state.

Tick-borne capture works as follows.

When releasing the grip, the articulated levers 10, 11 (Fig. 2, view. A) are fixed in the open position by means of a latch 12 (Fig. 3, view. B) with pressure control by means of a spring, the rigidity of which is regulated by a bolt. With the possibility of lowering the tick-borne grip on the body of the pipe 3 (Fig. 1) 6 (in Fig. 2, view A) 15 (Fig. 4), the spring stop 19 (Fig. 4, view. B) is activated, installed in the middle part of the housing 5 ( Fig. 1) 8 (Fig. 2 view. A) of the tongs, under the pressure of its own weight on the pipe body, the spring stop presses on the articulated levers, unlocking the action of the latch, the levers are closed relative to each other. Raising the cargo hook upwards provides tension to the slings 4 (Fig. 1) 7 (in Fig. 2), ensuring that the articulated levers close, a vertical component of force arises, which tightly presses the pipe against the gripper body and prevents it from falling out and open to the articulating levers of gripping when lifting and moving. When lowering the hook, the action of the sling weakens and under the influence of its own weight, the hinged grips open, are fixed at a certain angle to each other, releasing the gripper of the pipe.

It should be especially noted that the design of the castor-locking mechanism in the open position improves safety during work with the gripper, and after lowering the unit onto the body, castor-oil pipes are automatically fixed in the open position and cannot injure the worker when they close spontaneously.

This tick-borne device for capturing and transporting pipes allows you to completely exclude the personnel of the pipeline divisions of laborious operations for unloading, laying out the pipes when installing the pipeline and loading the pipes into the car body when dismantling the pipeline.

The tests of the prototype of the tick-borne gripping device during unloading and laying out 48 pipes (according to the standard) of the PMTP-150 set showed an increase in the efficiency of the temporary indicator by 1.54 times, and the loading time was reduced by 1.46 times. The use of this load gripping device will eliminate manual labor for loading and unloading pipes. It should be borne in mind that the weight of the pipe is 80.9 kg, and the average loading height of pipes laid in the back of a car in eight rows is 2.4 meters.

Information sources

1. A.N. Vineson, A.F. Andreev. Crane lifting devices. Handbook - M.: Mechanical Engineering, 1982, - 304 p.

2. Patent for invention of US 4426110 (01/17/84).

Claims (1)

A tick-borne device for gripping and transporting pipes, which is a supporting beam with a welded centering device, hung on the hook and pointing the yoke axis in a position parallel to the pipe axis on each side of the beam, using double-chain double-strand slings, double-lever clamp grippers consisting of a body having a series of paired holes corresponding to different diameters of the transported pipes, equipped with an automatic clamp between the levers in the form of a spring-loaded ball to hold the joint Nirni gripping arms in expanded state when the device institution over the pipe, during lowering of the pipe tong body triggered spring stop with adjustable spring stiffness using nuts rasstoporivaniya articulated arms held by locking in the open state.

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