CN111237284A - A two-way telescopic support mechanism and a large valve disassembly device - Google Patents

Abstract

The invention discloses a bidirectional telescopic support mechanism and a large valve disassembly device, comprising a hoop, a connecting piece, and a bidirectional telescopic support mechanism; the bidirectional telescopic support mechanism comprises a cylinder body, an operating piece, a first telescopic piece, a second telescopic piece and a second telescopic support mechanism. The main piston and the secondary piston in the cylinder, the first telescopic piece and the second telescopic piece are sleeved on both ends of the cylinder, and the operating piece controls the main piston and the secondary piston to push the first telescopic piece and the second telescopic piece respectively. Displacement occurs relative to the cylinder body; two hoops are installed on the dismantled pipeline, and the two hoops are relatively installed on both ends of the two-way telescopic support mechanism through the connecting piece, and the hoops of the two-way telescopic support mechanism move synchronously to realize the valve disassembly. or install. The beneficial effects of the invention are: the synchronous expansion and contraction of the two-way telescopic support mechanism pushes the hoop to move, the dismantled pipeline and the hoop move synchronously, and the valve can be disassembled or installed. The structure is relatively simple, manpower is saved, and the operation process is safe.

Description

A two-way telescopic support mechanism and a large valve disassembly device

technical field

The invention relates to the technical field of pipeline conveying equipment, in particular to a bidirectional telescopic support mechanism and a large valve disassembly device.

Background technique

In the field of pipeline transportation machinery technology, especially in the field of oil and gas transportation equipment, high-pressure water injection and oil and gas transportation in the process of oilfield development have higher requirements on the pressure bearing capacity of valves. The irregular shape makes it difficult to clamp and move when disassembling or installing, especially in the pipeline connection, which is often very tight, and the disassembly aging affects oil and gas production.

In the prior art, after the fastening bolts of the pipeline are removed, a crowbar is inserted into the connection between the valve and the pipeline, the pipeline is pryed up, and then supported by other tools, but this process has a small operating space and is not a horizontal movement. , is also blocked by the sealing steel ring, the disassembly efficiency is low, and the manual disassembly process is very cumbersome.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a bidirectional telescopic support mechanism and a large valve dismantling device to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A bidirectional telescopic support mechanism, comprising a cylinder, an operating member, a first telescopic piece, a second telescopic piece, and a main piston and a secondary piston in the cylinder, the first telescopic piece and the second telescopic piece being sleeved on the cylinder body At both ends, the operating member is installed on the cylinder, and the operating member controls the main piston and the secondary piston to move toward or away from each other, and the primary and secondary pistons push the first telescopic member and the second telescopic member respectively relative to the cylinder displacement occurs.

As a further solution of the present invention: the first telescopic member includes a first sleeve piston and a first piston rod sheathed in the first sleeve piston, and the second telescopic member includes a second sleeve piston and is sheathed in the first sleeve piston. The second piston rod inside the two-sleeve piston.

As a further solution of the present invention: it also includes a fastener, the fastener includes a gasket and a nut, the tops of the first piston rod and the second piston rod are both provided with threads, and the threads are connected to the fastener. For securing external bodies.

As a further solution of the present invention: the connection between the thread and the external mechanism is smooth and has no thread.

As a further solution of the present invention: the cylinder body is provided with an installation port for installing an operating member, the operating member includes a turntable, a rotating shaft, a rack, a gear and a support member, and the rotating shaft is installed on the installation port through the support member , the turntable and the gears are installed on both ends of the rotating shaft, and the gears are synchronously meshed with the racks installed on the main piston and the secondary piston.

As a further solution of the present invention: the operating element is a pneumatic element or a hydraulic element, and the pneumatic element or the hydraulic element pushes the primary piston and the secondary piston to move.

Another object of the present invention is to provide a large valve disassembly device, which includes a hoop and a connecting piece, and also includes any one of the above-mentioned two-way telescopic support mechanisms. The hoop is relatively installed on the two-way telescopic support mechanism through the connecting piece. At both ends, the hoop is pushed to move through the synchronous expansion and contraction of the bidirectional telescopic support mechanism.

As a further solution of the present invention, several support sleeves are welded on the outer circumference of the hoop, and the support sleeves and the bidirectional telescopic support mechanism are fixed by fasteners.

As a further solution of the present invention, the hugging hoop is an open-close ring, and the opening of the open-close ring is provided with a connecting hole for installing the connecting piece.

As a further solution of the present invention: the open-close ring is formed by hinged connection of two semi-rings.

Compared with the prior art, the beneficial effect of the present invention is: through the mutual cooperation between the two-way telescopic mechanism and the hoop, the hoop is installed on the dismantled pipe, and the two-way telescopic support mechanism pushes the hoop to move, and the dismantled pipe moves. It moves synchronously with the hoop to realize the disassembly or installation of the valve, the structure is relatively simple, the manpower is saved, and the operation process is safe.

Description of drawings

Figure 1 is a schematic structural diagram of a large valve disassembly device.

Figure 2 is a schematic structural diagram of a hoop in a large valve dismantling device.

FIG. 3 is a schematic structural diagram of a bidirectional telescopic support mechanism.

4 is a schematic cross-sectional view of a bidirectional telescopic support mechanism.

FIG. 5 is a schematic diagram of the installation structure of a large valve dismantling device.

Figure 6 is a schematic diagram of the disassembly structure of a large valve disassembly device.

In the drawings: 1-Hoop, 101-Support sleeve, 102-Connecting hole, 103-Tightening bolt, 104-Elastic washer, 105-Tightening nut, 2-Two-way telescopic support mechanism, 201-Cylinder block, 202 -Main piston, 203-Secondary piston, 204-Limiting sleeve, 3-First sleeve piston, 4-First piston rod, 5-Second sleeve piston, 6-Second piston rod, 7- Fastener , 8-operating parts, 801-gear, 802-turntable, 803-rotating shaft, 804-rack, A-upper interface pipe, B-valve, C-lower interface pipe.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with the aspects disclosed in the present embodiments, as recited in the appended claims.

Example 1

Referring to FIGS. 3-4 , in an embodiment of the present invention, a bidirectional telescopic support mechanism 2 includes a cylinder 201 , an operating member 8 , a first telescopic member, a second telescopic member, and a primary piston 202 and a secondary piston in the cylinder. 203 , the first telescopic piece and the second telescopic piece are sleeved on both ends of the cylinder 201 , the operating piece 8 controls the main piston 202 and the secondary piston 203 to move toward or away from each other, the main piston 202 and the secondary piston 203 The first telescopic element and the second telescopic element are respectively pushed to displace relative to the cylinder block 201 .

Specifically, the rotation of the operating member 8 is transformed into the primary piston 202 of the piston to push the first telescopic member to move relative to one end of the cylinder 201 , and the secondary piston 203 to push the second telescopic member to move relative to the other end of the cylinder 201 . The telescoping of the first telescopic member and the second telescopic member supports movement of the external mechanism.

Referring to FIG. 3 , in the embodiment of the present invention, the first telescopic member includes a first sleeve piston 3 and a first piston rod 4 sheathed in the first sleeve piston, and the second telescopic member includes a second sleeve The barrel piston 5 and the second piston rod 6 sheathed in the second sleeve piston.

Specifically, the first sleeve piston 3 and the second sleeve piston 5 are respectively sleeved on both ends of the cylinder body 201, and the first sleeve piston 3 and the second sleeve piston 5 are respectively pushed by the main piston 202 and the secondary piston 203 to move. , the first piston rod 4 and the second piston rod 6 are pushed synchronously, so as to complete the support for the external mechanism.

Referring to FIG. 3 , in the embodiment of the present invention, a fastener 7 is further included, and the fastener 7 includes a gasket and a nut, and the tops of the first piston rod 4 and the second piston rod 6 are both provided with threads , the thread and the fastener 7 are used to fix the external mechanism.

Specifically, the positions of the external mechanism on the first piston rod 4 and the second piston rod 6 are limited by several washers and nuts, so that the external mechanism is supported and fastened;

Referring to FIG. 3 , in the embodiment of the present invention, preferably, the joints between the first piston rod 4 and the second piston rod 6 and the external mechanism are smooth and threadless, so as to better contact with the external mechanism.

In another technical method of this embodiment, the fastener 7 may be a snap ring, a gasket and a latch, and the external mechanism is supported and limited by the snap ring, the gasket and the latch.

Referring to FIGS. 3 and 4 , in the embodiment of the present invention, the cylinder body 201 is provided with an installation port for installing an operating member, and the operating member 8 includes a turntable 802 , a rotating shaft 803 , a rack 804 , a gear 801 and a support The rotating shaft 803 is installed on the installation port through the support, the turntable 802 and the gear 801 are installed on both ends of the rotating shaft 803, the gear 801 is synchronously meshed with the rack 804 installed on the main piston 202 and the secondary piston 203, and the rack 804 The displacement is limited by the limiting sleeve 204 .

Specifically, the rotating shaft 803 is installed on the installation port through the bearings, snap rings and other components included in the support, and the turntable 802 is rotated to drive the gear 801 at the other end of the rotating shaft 803 to rotate. The primary piston 202 and the secondary piston 203 meshing with the gear 801 The upper rack 804 moves synchronously, and the movement of the primary piston 202 and the secondary piston 203 indirectly pushes the first piston rod 4 and the second piston rod 6 to move.

Referring to FIG. 3 , in the embodiment of the present invention, the operating member 8 is a pneumatic component or a hydraulic component, and the primary piston 202 and the secondary piston 203 are driven by the pneumatic component or the hydraulic component to move.

Specifically, a pneumatic or hydraulic component is installed at the installation port, and gas or liquid is pressed into the cylinder, so that the primary piston 202 and the secondary piston 203 move, thereby indirectly pushing the first piston rod 4 and the second piston rod 6 to move.

Example 2

Please refer to FIGS. 1 , 5 and 6 . In another embodiment of the present invention, a large valve disassembly device includes a hoop 1 and a connecting piece, and also includes any one of the above-mentioned two-way telescopic support mechanisms 2 . The hoop 1 is installed on the dismantled pipeline, and the two hoop 1 are relatively installed on the two ends of the two-way telescopic support mechanism 2 through the connecting piece. The hoop 1 moves synchronously to realize the disassembly or installation of valve B.

Specifically, a hoop 1 is installed on the upper interface pipe A, and a hoop 1 is installed on the lower interface pipe C, and both are fixed, and the fastening parts of the upper interface pipe A, the lower interface pipe C and the valve B are loosened, Through the synchronous extension of the two-way telescopic support mechanism 2, push the hoop 1 to move to the two ends of the two-way telescopic support mechanism 2 respectively, move to a certain distance, remove the valve B, and then install the new replacement valve to shrink the two-way telescopic support mechanism 2. , to reach the set requirements, tighten the connection between the upper interface pipeline A, the lower interface pipeline C and the valve B to ensure that the entire pipeline sealing, air pressure and hydraulic pressure meet the requirements.

Referring to FIGS. 1-2 , in the embodiment of the present invention, a plurality of support sleeves 101 are welded on the outer circumference of the hoop 1 , and the support sleeves 101 and the bidirectional telescopic support mechanism 2 are fixed by the fasteners 7 .

Preferably, there are three support sleeves 101, which cooperate with the two-way telescopic support mechanism 2 to support the upper interface pipe A and the lower interface pipe C; three support sleeves 101 are used to cooperate with the two-way telescopic support mechanism 2, which can be The removal of the valve leaves a space, which ensures that the bidirectional telescopic support mechanism 2 is evenly stressed during the disassembly process, and does not move sideways, and achieves a balance in the size and quantity of the bidirectional telescopic support mechanism 2 .

Referring to FIGS. 1-2 , in the embodiment of the present invention, the hoop 1 is an opening and closing type ring, and the opening of the opening and closing type ring is provided with a connecting hole 102 for installing a connecting piece.

Preferably, the surface of the connection hole 102 is smooth, which is better in contact with the fastener 7 .

Preferably, the connector includes a fastening bolt 103, an elastic washer 104 and a fastening nut 105, and the elastic washer 104 is added to cooperate with the fastening bolt 103 and the fastening nut 105, so that the hoop 1 is connected to the upper interface pipe A, The contact of the lower interface pipe C is tighter and does not slip.

Referring to Figures 1-2, in the embodiment of the present invention, the open-close ring is formed by hinged connection of two semi-rings.

Specifically, the installation of the two semi-circles is quicker and more convenient. One end is connected by a hinge, and the other end forms an opening of the open-close ring. A connecting hole 102 is provided at the opening, and a fastening bolt 103 and an elastic gasket 104 are used. It is fastened with the fastening nut 105; the inner surface of the semi-circle can also be provided with a friction plate, which is used to increase the friction force between the hoop 1 and the upper interface pipe A and the lower interface pipe C.

The working principle of the invention is as follows: two hoops are installed on the dismantled pipeline and fastened with fasteners, the two hoops are relatively installed on both ends of the two-way telescopic support mechanism through the connecting piece, and the operating member controls the two-way expansion and contraction. When the support mechanism works, the synchronous expansion and contraction of the two-way telescopic support mechanism pushes the two hoops to move relative to the valve, the dismantled pipeline moves synchronously with the hoops, the restriction of the valve is lifted, and the valve is disassembled or installed.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the disclosure at the specification and examples. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A bidirectional telescopic support mechanism, comprising a cylinder body, an operating member, a first telescopic member, a second telescopic member, and a main piston and a secondary piston in the cylinder, characterized in that the first telescopic member and the second telescopic member are It is sleeved on both ends of the cylinder body, the operating member is installed on the cylinder body, and the operating member controls the main piston and the secondary piston to move toward or away from each other, and the primary piston and the secondary piston respectively push the first telescopic piece and the second telescopic The parts are displaced relative to the cylinder. 2 . The bidirectional telescopic support mechanism according to claim 1 , wherein the first telescopic member comprises a first sleeve piston, a first piston rod sheathed in the first sleeve piston, and the first sleeve piston is 2. 3 . The two telescopic parts include a second sleeve piston and a second piston rod sleeved in the second sleeve piston. 3 . The bidirectional telescopic support mechanism according to claim 2 , further comprising a fastener, the fastener comprises a washer and a nut, the first piston rod and the second piston rod The tops are all provided with threads, and the threads and fasteners are used to fix the external mechanism. 4 . The bidirectional telescopic support mechanism according to claim 3 , wherein the connection between the thread and the external mechanism is smooth and has no thread. 5 . 5 . The bidirectional telescopic support mechanism according to claim 1 , wherein the cylinder body is provided with an installation port for installing the operating member. 6 . 6 . The bidirectional telescopic support mechanism according to claim 1 , wherein the operating element is a pneumatic element or a hydraulic element, and the pneumatic element or the hydraulic element pushes the primary piston and the secondary piston to move. 7 . 7. A large valve dismantling device, comprising a hoop and a connector, characterized in that it also includes a bidirectional telescopic support mechanism according to any one of claims 1-6, wherein the hoop is relatively installed on the The two ends of the two-way telescopic support mechanism push the hoop to move through the synchronous expansion and contraction of the two-way telescopic support mechanism. 8 . The large valve dismantling device according to claim 7 , wherein a plurality of support sleeves are welded on the outer circumference of the hoop, and the support sleeves and the bidirectional telescopic support mechanism are fixed by fasteners. 9 . 9 . The large valve dismantling device according to claim 7 , wherein the hoop is an opening and closing type ring, and the opening of the opening and closing type ring is provided with a connecting hole for installing a connecting piece. 10 . 10 . The large valve dismantling device according to claim 9 , wherein the opening and closing ring is formed by hinged connection of two semi-rings. 11 .

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