CN215485922U - Cover plate buffering type hydraulic slip device - Google Patents

Abstract

The utility model relates to a cover plate buffer type hydraulic slip device which comprises a slip body and a slip cover plate, wherein the slip cover plate comprises two half cover plates respectively hinged with the slip body, each half cover plate is provided with a wing plate, a buffer structure is arranged on the slip body corresponding to the lower part of each wing plate, or the bottom of each wing plate is provided with a buffer structure, so that the slip cover plate can perform a buffer action when being covered on the slip body. According to the cover plate buffer type hydraulic slip device, the buffer structure matched with the upper wing plate of the slip cover plate is arranged, so that the slip cover plate is buffered and lowered in a labor-saving and safe manner, the slip body and the slip cover plate are protected, and the service lives of the slip body and the slip cover plate are prolonged; in addition, the buffer structure has a compact structure, the structural space can be utilized to the maximum extent, and the interference with other parts is avoided.

Description

Cover plate buffering type hydraulic slip device

Technical Field

The utility model relates to the technical field of petroleum drilling equipment, in particular to a cover plate buffer type hydraulic slip device.

Background

Before the drilling work of petroleum, natural gas and the like is carried out, a hydraulic slip is required to be installed on a drilling platform surface to realize the automatic clamping of a drill rod, a pipe column and the like. The cover plate is in an open state when the conventional hydraulic slip is not in operation, the cover plate needs to be placed by manpower when the conventional hydraulic slip is in use, and if the cover plate is pushed manually to fall freely and be closed, the slip body is greatly damaged; if slowly transfer through artifical, then harder, and have the tong risk.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art, the utility model provides the cover plate buffer type hydraulic slip device, which realizes buffer lowering of the slip cover plate in a labor-saving and safe manner, further protects the slip body and the slip cover plate and is beneficial to prolonging the service lives of the slip body and the slip cover plate; in addition, the buffer structure has a compact structure, the structural space can be utilized to the maximum extent, and the interference with other parts is avoided.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides an apron buffering type hydraulic pressure slips device, includes slips body and slips apron, slips apron include two respectively with slips body articulated half apron is equipped with the pterygoid lamina on every half apron, be equipped with buffer structure on the slips body that pterygoid lamina below corresponds, or the bottom of pterygoid lamina is equipped with buffer structure to give its cushioning effect when slips apron lid fits slips body in-process.

During the use, pushing and pressing slips apron lid and closing the free transfer in-process on the slips body, the pterygoid lamina that its had can be earlier with the buffer structure contact on the slips body, perhaps the buffer structure of pterygoid lamina bottom earlier with this body contact of slips, and then utilize buffer structure's cushioning effect to make half apron buffering descend, avoid slips apron direct impact slips body to cause great damage. The buffer structure on the slips body can integrate the design and the wing plate cooperation of half apron, realizes that the maximize utilizes structure space on reaching the cushioning effect basis, has avoided the interference with other parts.

Wherein, the buffer structure can be but is not limited to the following form:

firstly, the buffer structure can be a spring and is directly connected to the bottom of the wing plate, the structure is simple, but the problem that the spring is easy to deform exists; secondly, the buffering structure can be a spring and is arranged on the slip body, and particularly, the spring can be arranged on the slip body in a groove, so that the structure is simple, the appearance is not attractive after the slip body is covered, and the deformation condition can be relieved; thirdly, the buffer structure can also be a structure of a spring and an abutting component, and the abutting component refers to a rear abutting component structure.

Fourthly, in order to better present the cushioning effect of the cushioning structure, such as performance of stability in use, low energy consumption, spring life, etc., the cushioning structure may be: including offering the piston chamber on the slips body, the top in piston chamber is equipped with sealed lid, be equipped with piston and the piston rod of being connected with the piston in the piston chamber, the upper end of piston rod is worn out sealed lid and is connected with the butt part, be equipped with reset spring in the piston chamber of piston below, be equipped with check valve and damping hole on the piston, there is hydraulic oil in the piston chamber. During the use, after half apron and butt part contact, under half apron pressure effect, the piston rod promotes the piston and moves down in the piston intracavity, moves down the in-process and compresses reset spring, and simultaneously under the effect of check valve, hydraulic oil can only flow to there being the pole chamber from no pole chamber through the damping hole, forms the damping of buffering, slows down apron falling speed. When the slip cover plate is lifted, the return spring pushes the piston, hydraulic oil flows from the rod cavity to the rodless cavity through the one-way valve, and the piston reaches the initial position.

In one example, on the basis of the buffering structure of the fourth step, a guide column penetrating through the piston is further arranged in the piston cavity, so that the piston moves under the restraint of the guide column to ensure the positive contact of the abutting part and the slip cover plate.

In one example, the abutment member may adopt, but is not limited to, the following structure: specifically, the abutting component comprises a mounting seat connected with the piston rod, a roller is connected onto the mounting seat, and the surface of the roller is used for being in contact with the bottom surface of the half cover plate. Adopt the gyro wheel, transfer the in-process at the slips apron, along with it transfers the gyro wheel rotation, can reduce slips apron and friction between it to reduce the friction damage of slips apron.

In one example, the surface of the roller is provided with an anti-slip layer, so that the abrasion of the piston rod when the cover plate falls can be reduced. Furthermore, the anti-slip layer can be a rubber layer and can also play a certain buffering role.

In one example, two wing plates are arranged on the half cover plate, and the two wing plates are respectively arranged at two sides of the hinge joint of the half cover plate and are close to the hinge joint of the half cover plate.

By adopting the arrangement, the buffer stability is better; the pterygoid lamina is close to articulated department setting, and earlier contact buffer structure when can guaranteeing half apron whereabouts increases buffer distance.

By adopting the technical scheme, the utility model has the advantages that:

1. the slip cover plate is buffered and released in a labor-saving and safe manner by arranging the buffering structure matched with the upper wing plate of the slip cover plate, so that the slip body and the slip cover plate are protected, and the service lives of the slip body and the slip cover plate are prolonged; in addition, the buffer structure has a compact structure, the structural space can be utilized to the maximum extent, and the interference with other parts is avoided.

2. This application buffer structure adopts fluid pressure type buffer structure, and buffering stability is good, the energy consumption is low, long service life.

3. The abutting part of the buffering structure is in contact with the roller, so that contact abrasion of the slip cover plate during falling can be reduced; the anti-skid layer is arranged on the roller, so that the abrasion of the cover plate to the piston rod when falling can be reduced; the antiskid layer adopts a rubber layer and can also play a role in buffering to a certain extent.

4. This application pterygoid lamina sets up near the articulated department of half apron, and earlier contact buffer structure when can making half apron whereabouts increases buffer distance.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is an enlarged view of part A of FIG. 3;

FIG. 5 is a partial schematic view of the buffer structure shown in FIG. 4;

fig. 6 is a schematic sectional view of the check valve of fig. 4.

In the figure, 1, a slip body, 2, a slip cover plate, 3 and a buffer structure; 21. the device comprises a half cover plate 22, a wing plate 31, a piston cavity 32, a sealing cover 33, a piston 34, a piston rod 35, an abutting part 36, a return spring 37 and a guide rod; 331. one-way valve 332, damping hole 351, mounting seat 352 and roller.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-5, in this embodiment, the cover plate buffering type hydraulic slip device includes a slip body 1 and a slip cover plate 2, the slip cover plate 2 includes two half cover plates 21 hinged to the slip body 1, a wing plate 22 is disposed on each half cover plate 21, a buffering structure 3 is disposed on the slip body 1 corresponding to the lower side of the wing plate 22, or a buffering structure is disposed at the bottom of the wing plate 22, so as to provide a buffering effect to the slip body 1 when the slip cover plate 2 is covered on the slip body 1.

During the use, pushing and bulldozing slips apron 2 lid and closing the free transfer in-process on slips body 1, its pterygoid lamina 22 that has can earlier with the 3 contacts of buffer structure on the slips body 1, perhaps the buffer structure of pterygoid lamina bottom earlier with this body contact of slips, and then utilize buffer structure 3's cushioning effect to make half apron 21 buffering descend, avoid slips apron 2 direct impact slips body 1 to cause great damage. The buffer structure on the slips body 1 can integrate the design and the wing plate cooperation of half apron 21, realizes that the maximize utilizes the structure space on reaching the cushioning effect basis, has avoided the interference with other parts.

Wherein, the buffer structure can be but is not limited to the following form: specifically, for better cushioning effect who presents buffer structure, performance such as stability in use, low energy consumption, spring life, buffer structure 3 is including seting up piston chamber 31 on slips body 1, the top in piston chamber 31 is equipped with sealed lid 32, be equipped with piston 33 in the piston chamber 31 and the piston rod 34 of being connected with piston 33, the upper end of piston rod 34 is worn out sealed lid 32 and is connected with butt part 35, be equipped with reset spring 36 in the piston chamber 31 of piston 34 below, be equipped with check valve 331 and damping hole 332 on the piston 33, there is hydraulic oil in the piston chamber 31. When the hydraulic buffer is used, after the half cover plate 21 is contacted with the abutting part 35, the piston rod 34 pushes the piston 33 to move downwards in the piston cavity 31 under the pressure action of the half cover plate 21, the return spring 36 is compressed in the downward moving process, and meanwhile, under the action of the one-way valve 331, hydraulic oil can only flow from the rodless cavity to the rod cavity through the damping hole 332 to form buffer damping and slow down the falling speed of the cover plate. When the slip cover plate 2 is lifted, the return spring 36 pushes the piston, hydraulic oil flows from the rod cavity to the rodless cavity through the one-way valve, and the piston reaches the initial position. The structure of the check valve may be the structure shown in fig. 6, and the structure of the check valve is mature and will not be described in detail herein.

In one embodiment, as shown in figure 5, a guide post 37 is provided in the piston chamber 31 extending through the piston such that the piston is constrained by the guide post 37 to ensure positive contact of the abutment member with the slip cover.

As shown in fig. 5, in one embodiment, the abutment member 35 may adopt, but is not limited to, the following structure: specifically, the abutting member 35 includes a mounting seat 351 connected to the piston rod 34, a roller 352 is connected to the mounting seat 351, and a surface of the roller 352 is configured to contact a bottom surface of the half cover. Adopt the gyro wheel, transfer the in-process at slips apron 2, along with it transfers the gyro wheel rotation, can reduce slips apron 2 and friction between it to reduce the friction damage of slips apron.

Furthermore, the surface of the roller 352 is provided with an anti-slip layer, so that the abrasion of the cover plate to the piston rod during falling can be reduced. Furthermore, the anti-skid layer can be a rubber layer and can also play a certain buffering role.

As shown in fig. 1, in one embodiment, two wing panels 22 are disposed on the half cover plate 21, and the two wing panels 22 are respectively disposed at two sides of the hinge of the half cover plate 21 and close to the hinge of the half cover plate.

By adopting the arrangement, the buffer stability is better; the wing plate 22 is arranged close to the hinged part, so that an early contact buffering structure when the half cover plate falls can be ensured, and the buffering distance is increased.

The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.

Claims (7)

1. The utility model provides an apron buffering type hydraulic pressure slips device, its characterized in that, includes slips body and slips apron, slips apron include two respectively with slips body articulated half apron is equipped with the pterygoid lamina on every half apron, be equipped with buffer structure on the slips body that pterygoid lamina below corresponds, or the bottom of pterygoid lamina is equipped with buffer structure to cover at slips apron and fit its cushioning effect when slips body in-process.

2. The cover plate buffering type hydraulic slip device according to claim 1, wherein the half cover plate is provided with two wing plates, and the two wing plates are respectively arranged at two sides of the hinge joint of the half cover plate and close to the hinge joint of the half cover plate.

3. The cover plate buffering type hydraulic slip device according to claim 1 or 2, wherein the buffering structure comprises a piston cavity arranged on the slip body, a sealing cover is arranged at the top of the piston cavity, a piston and a piston rod connected with the piston are arranged in the piston cavity, the upper end of the piston rod penetrates through the sealing cover and then is connected with a butting component, a return spring is arranged in the piston cavity below the piston, a check valve and a damping hole are arranged on the piston, and hydraulic oil is arranged in the piston cavity.

4. The decking-buffered hydraulic slip apparatus of claim 3, wherein a guide post extends through the piston in the piston chamber.

5. The decking-buffered hydraulic slip apparatus of claim 3, wherein the abutment member includes a mount coupled to the piston rod, the mount having a roller coupled thereto, a surface of the roller being adapted to contact a bottom surface of the half decking.

6. The cover plate buffering hydraulic slip apparatus according to claim 5, wherein the surface of the roller is provided with an anti-slip layer.

7. The decking-buffered hydraulic slip apparatus of claim 6, wherein the skid resistant layer is a rubber layer.

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