CN207648332U - Hydraulic clamping device for blowout prevention pipeline - Google Patents

Abstract

The utility model relates to a prevent spouting pipeline hydraulic pressure chucking device, including cylinder body (1), cylinder cap (2), piston (3), pressure testing blind plate (4) and walking dolly (5), the front end of piston (3) is stretched outside cylinder body (1) and is linked firmly together with pressure testing blind plate (4), the place ahead of cylinder body (1) is provided with "U" shape jack catch (1a), "U" shape jack catch (1a) is crossed pressure testing blind plate (4) and is linked together as a whole with cylinder body (1), the front end of pressure testing blind plate (4) is provided with direction centering awl (4a), "U" shape jack catch (1a) has the arc end, and the arc end and direction centering awl (4a), piston (3) coaxial setting. The functions of the clamping jaws are integrated on the cylinder body, the U-shaped clamping jaw structure is adopted to facilitate quick clamping of the lubricator line flange disc, and the lubricator line end flange sealing groove and the sealing groove of the pressure test blind plate are quickly centered.

Description

Blowout prevention pipeline hydraulic clamping device

technical field

The utility model relates to a hydraulic clamping device for a blowout prevention pipeline sealing test, which belongs to the technical field of mechanical structures.

Background technique

The existing blowout prevention pipeline hydraulic clamping device is composed of a cylinder block, a cylinder head, a piston, a pressure test blind plate, claws and a traveling trolley. The front end of the piston extends out of the cylinder and is fixedly connected with the pressure test blind plate, and the main body of the piston is placed in the sealed cavity formed by the cylinder body and the cylinder head. The pressure test blind plate is fixedly installed on the front end of the piston. There is a pressure hole on the pressure test blind plate. The oil cylinder assembly composed of the cylinder body, the cylinder head and the piston is placed on the walking trolley, and the oil inlet hole is set on the cylinder body. Fill the cylinder with hydraulic oil. Claws are used to fix the flange at the end of the blowout preventer pipeline. The two ends of the blowout prevention pipeline are respectively connected to the pressure test blind plate through the gasket ring, and the sealing test can be carried out.

The main problem of this structure is that it is necessary to set up multi-lobe claws separately, and the claws and the cylinder body are two parts respectively. During use, the clamping operation is cumbersome and the production efficiency is low; the blowout prevention pipeline will inevitably have tiny The bending deformation makes it troublesome to align the sealing groove on the end flange of the blowout prevention pipeline with the sealing groove of the pressure test blind plate.

Utility model content

In view of the above technical problems, the utility model aims to provide a hydraulic clamping device for blowout prevention pipelines with simple and efficient clamping operation, and to realize rapid and automatic alignment between the flange sealing groove at the end of the blowout prevention pipeline and the sealing groove of the pressure test blind plate. middle.

For this reason, the technical solution adopted by the utility model is: a hydraulic clamping device for a blowout prevention pipeline, including a cylinder body, a cylinder head, a piston, a pressure test blind plate and a walking trolley, and the front end of the piston extends outside the cylinder body And it is fixedly connected with the pressure test blind plate. A "U" shaped claw is set in front of the cylinder body. The "U" shaped claw crosses the pressure test blind plate and is connected with the cylinder body as a whole. The test The front end of the blind pressure plate is provided with a guide centering cone, and the "U"-shaped claw has an arc-shaped bottom, and the arc-shaped bottom is coaxially arranged with the guide centering cone and the piston.

As a preference of the above solution, the pressure test blind plate is fixed to the front end of the piston by bolts, and a handrail is provided at the rear of the walking trolley. The pressure test blind plate is installed and fixed by bolts, which is convenient and fast; the handrail is convenient to push the walking trolley.

The beneficial effect of the utility model is: the function of the claw is integrated into the cylinder body, and the "U" shaped claw structure is adopted to facilitate fast clamping of the flange plate of the blowout prevention pipeline, and a simple and efficient working procedure is realized ; Add a guide centering cone to the front end of the pressure test blind plate, so that the end flange of the blowout prevention pipeline can be quickly connected to the pressure test blind plate under the guidance and automatic centering of the guide center cone. The structure is simple, the design is ingenious, and has a certain market prospect.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is a left side view of Fig. 1 .

Fig. 3 is a diagram of the use status of the utility model.

Detailed ways

Below by embodiment and in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1 to 3, a hydraulic clamping device for a blowout prevention pipeline is mainly composed of a cylinder body 1, a cylinder head 2, a piston 3, a pressure test blind plate 4 and a traveling trolley 5.

The main body of the piston 3 is placed in the sealed cavity formed by the cylinder body 1 and the cylinder head 2, and the front end of the piston 3 extends out of the cylinder body 1 and is fixedly connected with the pressure test blind plate 4. The pressure test blind plate 4 is provided with a pressure hole, and the oil cylinder assembly composed of the cylinder body 1, the cylinder head 2 and the piston 3 is placed on the walking trolley 5, and the cylinder body 1 is provided with an oil inlet hole 1b, which is connected to the cylinder body 1 Inject hydraulic oil. The above description is consistent with the existing structure and will not be repeated here.

The difference is: the front of the cylinder 1 is provided with a "U"-shaped claw 1a, the "U"-shaped claw 1a crosses the pressure test blind plate 4 and is connected with the cylinder 1 as a whole, that is, the "U"-shaped claw 1a is located Right in front of the pressure test blind plate 4, the function of the cylinder claw is replaced by a "U" shaped claw 1a and integrated into the cylinder body 1. After the blowout prevention pipeline 6 (that is, the pressure test workpiece) is hoisted into the groove of the "U"-shaped claw 1a, the pressure test blind plate 4 and the flange plate of the blowout prevention pipeline 6 are clamped by the movement of the piston 3, and the seal can be performed test. There are only two hydraulic actions of the whole device, which are tightening and loosening, and the operation is very simple.

The front end of the pressure test blind plate 4 is provided with a guide centering cone 4a, and the "U"-shaped claw 1a has an arc-shaped bottom, and the arc-shaped bottom is coaxially arranged with the guide centering cone 4a and the piston 3 .

Preferably, the pressure test blind plate 4 is fixed to the front end of the piston 3 by bolts, and the rear of the trolley 5 is provided with a handrail 5a.

First, the oil cylinder assembly is fixedly placed on the walking trolley 5, and the walking trolley 5 is manually pushed to walk on the level ground. According to the length of the tested pressure test workpiece, manually push the walking trolley 5 to adjust the distance between the two oil cylinder assemblies; then use the crane to put the flange plate of the pressure test workpiece into the "U" shaped claw 1a of the two oil cylinder assemblies In the "U"-shaped groove, the operator operates the manual reversing valve to eject the pistons 3 of the oil cylinders at both ends respectively, and the guide centering cone 4a on the pressure test blind plate 4 will gradually center automatically during the ejection process of the piston 3 Press the central hole of the pressure test workpiece and press against the gasket ring 6a of the pressure test workpiece.

Claims (2)

1. a kind of blowout prevention pipeline hydraumatic chucking device, including cylinder body (1), cylinder cap (2), piston (3), PRESSURE TESTING BLIND FLANGE (4) and walking The front end of trolley (5), the piston (3) reaches cylinder body (1) outside and is fixed together with PRESSURE TESTING BLIND FLANGE (4), it is characterised in that：Institute State and be provided with " u "-shaped claw (1a) in front of cylinder body (1), " u "-shaped claw (1a) cross PRESSURE TESTING BLIND FLANGE (4) and with cylinder body (1) phase Company is integral, and the front end of the PRESSURE TESTING BLIND FLANGE (4) is provided with guiding centering cone (4a), and the " u "-shaped claw (1a) carries arc Shape bottom, and arcuate bottom is coaxially disposed with guiding centering cone (4a), piston (3).

2. blowout prevention pipeline hydraumatic chucking device according to claim 1, it is characterised in that：The PRESSURE TESTING BLIND FLANGE (4) passes through Bolt is fixed on piston (3) front end, and the rear of the walking dolly (5) is provided with handrail (5a).