CN219805660U

CN219805660U - Core claw dismounting device

Info

Publication number: CN219805660U
Application number: CN202320546609.3U
Authority: CN
Inventors: 狄海公; 吕倩菲; 杨少春; 王磊; 王佳浩; 肖俊杰
Original assignee: China Petroleum and Chemical Corp; Sinopec Henan Oilfield Branch Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Henan Oilfield Branch Co
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-10-10
Anticipated expiration: 2033-03-20

Abstract

The utility model provides a core claw dismounting device which comprises a supporting seat and a clamping structure for clamping core claws, wherein a rotation stopping structure is arranged on the clamping structure, a fixing structure for fixing with a supporting foundation is arranged on the supporting seat, a supporting position for supporting and placing the core claws is arranged on the supporting seat, and a stopping structure for being in stopping fit with the rotation stopping structure in the circumferential direction is arranged on the supporting position in the circumferential direction. According to the core claw dismounting device provided by the utility model, the core claw is clamped by the clamping structure, and the rotation stopping structure is matched with the stop structure, so that the core claw and the core barrel are subjected to driving force in opposite directions, the number of required manpower is reduced, meanwhile, the core claw can be stably supported by the support seat, the force can be applied to the core barrel better, and the dismounting efficiency is further improved.

Description

Core claw dismounting device

Technical Field

The utility model relates to a core claw dismounting device, and belongs to the technical field of core claws.

Background

Currently, the core claw comprises a core barrel and a core claw connected below the core barrel, and after drilling coring is finished, the core barrel and the core claw are required to be separated so as to take out a core in the core barrel. When the existing core claw and the core barrel are connected through the pin and the box, one or more people are required to operate the chain tongs or the wrench to clamp the core claw during disassembly, the other one or more people are required to operate the chain tongs or the wrench to clamp the core barrel, one person is required to stabilize the core barrel, and then a rotating moment in the opposite direction is applied to separate the core barrel from the core claw. There are some problems in the operation, in particular: 1. when the core claw is disassembled, at least three persons are needed to cooperate, so that the operation is inconvenient; 2. the rock core claw is suspended in the air by the sling when dismantling, and the rock core barrel easily rocks when exerting force, influences the dismantlement efficiency.

Disclosure of Invention

The utility model aims to provide a core claw dismounting device, which aims to solve the technical problems that in the prior art, the number of people is more when a core claw is dismounted, and the core barrel is easy to shake when being suspended in the air.

The core claw dismounting device adopts the following technical scheme:

the core claw dismounting device comprises a supporting seat and a clamping structure for clamping the core claw, wherein the clamping structure is provided with a rotation stopping structure, a fixing structure for fixing a supporting foundation is arranged on the supporting seat, a supporting position for supporting and placing the core claw is arranged on the supporting seat, and a stop structure for stopping the rotation stopping structure in a circumferential direction in a matched mode is arranged on the circumference of the supporting position.

The beneficial effects are that: the utility model provides a core claw dismounting device, when the core claw is dismounted, a supporting seat is fixed on a supporting base through a fixing structure, then the core claw is clamped through a clamping structure, and the core claw is placed on a supporting position on the supporting seat, so that a rotation stopping structure on the clamping structure and a stopping structure on the circumference of the supporting position form stopping fit in the circumferential direction, then a chain wrench or a spanner is manually used for clamping a core barrel and driving the core barrel to rotate.

Further, the clamping structure is a hoop, and the hoop comprises at least two circular arc-shaped hoop plates and a fastener for connecting the hoop plates together.

The beneficial effects are that: when the core clamping device is used, the core clamping claws are clamped by the hoop plates, and the hoop plates are connected and fixed by the fasteners, so that the core clamping device is very convenient to use.

Further, the fastener is a bolt, and the hoop plate is provided with a through hole for the bolt to pass through.

The beneficial effects are that: when the connection is fixed, the bolts penetrate through the holes on the two hoop plates and are matched with the nuts to finish the connection and the fixation of the two hoop plates, so that the use is very convenient.

Further, the rotation stopping structure is a rotation stopping rod which is arranged on the convex side of the hoop plate and extends along the radial direction of the hoop plate.

The beneficial effects are that: the rotating rod is fixed to the rotating structure, and when the rotating rod is used, the rotating rod is fixed to the rotating structure in a blocking mode.

Further, the stopper structure is a stopper column extending in the up-down direction.

The beneficial effects are that: the stop column has simple structure and low processing cost.

Further, the stopper posts are arranged two by two at intervals in the circumferential direction of the support position.

Further, the supporting seat is of a plate-shaped structure.

The beneficial effects are that: the supporting seat is of a plate-shaped structure, has a good supporting effect, is light in weight and is easy to carry.

Drawings

FIG. 1 is a schematic view of a core holder removing apparatus according to an embodiment 1 of the present utility model;

FIG. 2 is a front view of the hoop plate of FIG. 1;

fig. 3 is a top view of the hoop plate of fig. 1 (the stopper rod on the hoop plate is not shown).

The names of the corresponding components in the figures are:

100. a support base; 101. a hoop plate; 102. a connecting lug; 103. a bolt; 104. a rotation stopping rod; 105. a stop post; 106. and (5) perforating.

Detailed Description

The present utility model is described in further detail below with reference to examples.

Example 1 of core holder removal apparatus in the present utility model:

as shown in fig. 1, the core claw disassembling device provided by the utility model comprises a supporting seat 100 and a clamping structure, wherein the clamping structure is provided with a rotation stopping structure, the supporting seat 100 is provided with a supporting position, and the circumferential direction of the supporting position is provided with a stopping structure. When the core claw is disassembled, the core claw is clamped through the clamping structure, then the core claw is placed on the supporting position, the rotation stopping structure on the clamping structure and the rotation stopping structure on the circumference of the supporting position form stop fit in the circumferential direction, then the core barrel is manually clamped by a chain wrench or a spanner, and the core barrel is driven to rotate to complete the disassembly of the core claw.

In this embodiment, as shown in fig. 1, 2 and 3, the clamping structure is a hoop, the hoop includes two circular arc-shaped hoop plates 101 and a fastener for connecting the two hoop plates 101 together, the fastener is specifically a bolt 103, a connecting ear 102 is disposed at a butt joint position of the hoop plates 101, a through hole 106 for the bolt 103 to pass is disposed on the connecting ear 102, when the core claw is clamped, the core claw is clamped by the two hoop plates 101 in a butt joint manner, and the two hoop plates 101 are connected and fixed by the bolt 103.

In this embodiment, as shown in fig. 1, the rotation stopping structure is a rotation stopping rod 104, the rotation stopping rod 104 is disposed on the convex side of the hoop plate 101 and extends along the radial direction of the hoop plate 101, the rotation stopping structure is a stop column 105 extending along the up-down direction, and two stop columns 105 are circumferentially arranged at intervals to respectively and circumferentially stop and cooperate with the rotation stopping rods 104 on the two hoop plates 101, so as to prevent the hoop from rotating relative to the supporting seat 100. In addition, the support 100 has a plate-like structure.

In this embodiment, be equipped with on the supporting seat 100 and be used for with the fixed knot of supporting foundation construct, fixed knot constructs specifically and is the location arch, and during the use, supporting seat 100 is fixed on supporting foundation through the location arch, ensures that supporting seat 100 can not remove on supporting foundation when dismantling the rock core claw.

When the core claw disassembling device provided by the embodiment is used for disassembling the core claw, the supporting seat is fixed on the supporting base through the positioning bulge, then the core claw is clamped through the anchor ear, the core claw is placed on the supporting position on the supporting seat 100, the stop rod 104 on the anchor ear and the stop column 105 on the circumference of the supporting position form stop fit in the circumferential direction, then the core barrel is manually clamped by the chain pliers or the wrench and driven to rotate, compared with the mode of disassembling the core claw in the prior art, the core claw disassembling device provided by the utility model utilizes the clamping structure to clamp the core claw, and utilizes the stop rod 104 and the stop column 105 to match, so that the core claw and the core barrel are subjected to driving force in the opposite direction, the required manual quantity is reduced, meanwhile, the supporting seat 100 can provide stable support for the core claw, the core barrel can be better forced, and the disassembling efficiency is further improved.

Example 2 of core holder removal apparatus in the present utility model:

the present embodiment is different from embodiment 1 in that in embodiment 1, the support base is a plate-like structure. In this embodiment, the support base has a block structure.

Example 3 of core holder removal apparatus in the present utility model:

the present embodiment is different from embodiment 1 in that in embodiment 1, two stopper posts are arranged at intervals in the circumferential direction. In this embodiment, three stop posts are circumferentially arranged at intervals, and accordingly, the number of the stop posts corresponds to the number of the stop posts one by one.

Example 4 of core holder removal apparatus in the present utility model:

the present embodiment is different from embodiment 1 in that in embodiment 1, the stopper structure is a stopper column extending in the up-down direction. In this embodiment, the support seat is provided with a limit groove, and when the core claw is placed on the support position on the support seat, the rotation stopping structure is located in the limit groove, and the groove wall of the limit groove forms a stop structure.

Example 5 of core holder removal apparatus in the present utility model:

this embodiment differs from embodiment 1 in that in embodiment 1, the rotation stopping structure is a rotation stopping lever. In this embodiment, the rotation stopping structure is a rotation stopping upright, the supporting seat is provided with a limiting hole for the rotation stopping upright to be inserted, and when the core claw is placed on the supporting position on the supporting seat, the rotation stopping upright is inserted into the limiting hole, and the hole wall of the limiting hole forms a stop structure.

Example 6 of core holder removal apparatus in the present utility model:

this embodiment differs from embodiment 1 in that in embodiment 1, the fastener is a bolt. In this embodiment, the fastening member is a fastening pin, and the hoop plate is provided with a through hole for the fastening pin to pass through.

Example 7 of core holder removal apparatus in the present utility model:

the present embodiment is different from embodiment 1 in that in embodiment 1, the clamping structure is a hoop. In the embodiment, the clamping structure comprises a chuck, an avoidance hole for allowing the core claw to pass through is formed in the center of the chuck, the claw for the core claw is arranged on the chuck, and when the clamping structure is used, the core claw passes through the avoidance hole firstly and then is operated to clamp the core claw.

Example 8 of core holder removal apparatus in the present utility model:

this embodiment is different from embodiment 1 in that in embodiment 1, the number of hoop plates is two. In this embodiment, the number of hoop plates is three.

The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a rock core claw dismounting device, its characterized in that, including supporting seat and the clamping structure that is used for pressing from both sides tight rock core claw, be equipped with on the clamping structure and stop the commentaries on classics structure, be equipped with on the supporting seat be used for with support the fixed structure of basis, be equipped with on the supporting seat be used for supporting the support position of placing the rock core claw, be equipped with in the circumference of support position be used for with stop the structure and stop the complex structure that keeps off in circumference.

2. The core holder remover of claim 1, wherein the clamping structure is a hoop comprising at least two circular arc shaped hoop plates and a fastener for connecting the hoop plates together.

3. The core holder remover as set forth in claim 2, wherein the fastener is a bolt and the hoop plate is provided with a through hole for the bolt to pass through.

4. The core holder remover as set forth in claim 2, wherein the rotation stopping structure is a rotation stopping rod disposed on the convex side of the hoop plate and extending in the radial direction of the hoop plate.

5. The core holder remover as set forth in claim 1, wherein the stopper structure is a stopper column extending in the up-down direction.

6. The core holder remover according to claim 5, wherein the stop posts are spaced apart in the circumferential direction of the support.

7. The core holder remover of claim 1, wherein the support base is of plate-like configuration.