RU147604U1 - PUMP AND COMPRESSOR PIPE CLIP DEVICE FOR COUPLING MACHINES - Google Patents

Abstract

1. A clamping device for tubing for clutch hoist machines, comprising a jaw-shaped clamping mechanism mounted on rotary elements of the clutch hoist machine, in the case of which through dovetail grooves are made, interchangeable dies are fixed in the grooves, characterized in that the interchangeable dies are made self-aligning in diameter of the clamped pipe and equipped with teeth, while the tooth profile and the radius of the outer surface of the die ensure uniform girth of the pipe. 2. The device according to claim 1, characterized in that the interchangeable dies are fixed in the grooves by means of cotter pins.

Description

The utility model relates to the oil industry and can be used when setting up and operating technological equipment for repair of tubing.

A pipe clamp of a coupling machine is known, comprising a housing with bearings, in the bearings of which a hollow spindle with brackets is mounted, on which a power cylinder with two shoulders is mounted, a hollow spindle is mounted for rotation around an axis, and prisms for clamping the pipe are mounted on the ends of the two shoulders. (RF patent No. 2282526, BI No. 16, 08/27/2006)

The disadvantage of this device is the loss of torque in the bearing assemblies and the unreliability of the cartridge-coupling system, since the coupling is pre-screwed onto the pipe and clamped in the machine cartridge.

A device for clamping tube elements comprising a rotary gear with a profiled surface, a removable cassette with upper and lower disks, between which there are clamping devices made in the form of a housing associated with a roller support and a jaw with a die, which has its own size for pipes of different diameters. (Patent No. 2268984, BI No. 2, 01/27/2006)

This clamp design does not allow you to adjust the amount of torque required to wind the coupling without damaging the tubing.

The technical task of the utility model is to create a clamp design for tubing for a coupling machine, which provides a safe technology for screwing the coupling by adjusting the torque.

This problem is solved in that in the proposed device containing mounted on the rotary elements of the coupling machine jaw-shaped clamping mechanism, in the body of which are made through grooves of the "dovetail" type. Replaceable dies are fixed in the grooves, which are made self-aligning along the diameter of the clamped pipe and equipped with teeth. The profile of the teeth and the radius of the outer surface of the die ensure uniform coverage of the pipe.

Figure 1 shows a clamping device for tubing for coupling machine tools, a longitudinal section.

The clamping device is installed in the holes of the clamping levers of the coupling machine (not shown in the drawing) and secured with screws.

The clamping device comprises a housing 1 in which through dovetail grooves are made 2. Replaceable dies 3 with teeth 4 are installed in the grooves 2 by means of cotter pins 5. The tooth profile 4 of the dies 3 and the radius of the outer surface of the dies 3, which are structurally embedded, ensure uniform girth of the pipe body 6, which prevents the rotation of the body of the pipe 6 when making up the couplings without damaging it.

The dies 3 are made self-aligning in diameter of the clamped pipe 6, which ensures uniformity of the clamp and eliminates the deformation of the pipe 6.

The device operates as follows: when extending the rods of the clamping hydraulic cylinder of the coupling machine (not shown in the drawing), the housing 1 acts a force directed to the axis of the pipe 6, under the action of which the dies 3 begin to clamp the pipe 6. When the required force is reached, the pipe 6 is fixed. Changing the machine to another pipe size is carried out by replacing the clamping device with the required one, according to the marking. To replace worn dies 3, it is necessary to remove the cotter pins 5 from the holes, remove the dies 3 from the dovetail groove 2, then install the necessary dies 3, according to the marking on them, into the grooves 2 and fix with cotter pins 5.

This device simplifies the kinematics of the power mechanism of clamping pipes, allows you to unify the installation dimensions of clamping mechanisms with the pipe sizes. Using the device eliminates the possibility of damage to the pipe and coupling and provides cost savings in the repair of tubing.

Claims (2)

1. A clamping device for tubing for clutch-turning machines, comprising a jaw-shaped clamping mechanism mounted on rotary elements of the clutch-cutting machine, in the case of which through dovetail grooves are made, interchangeable dies are fixed in the grooves, characterized in that the interchangeable dies are made self-aligning in diameter of the clamped pipe and equipped with teeth, while the tooth profile and the radius of the outer surface of the die ensure uniform girth of the pipe. 2. The device according to claim 1, characterized in that the interchangeable dies are fixed in the grooves by means of cotter pins.

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