CN213898899U

CN213898899U - Oil pipe clamp assembly

Info

Publication number: CN213898899U
Application number: CN202023120951.2U
Authority: CN
Inventors: 柴文龙; 赵胜博; 刘孝飞; 贾永刚
Original assignee: Henan Aokeda Petrochemical Equipment Manufacturing Co ltd
Current assignee: Henan Aokeda Petrochemical Equipment Manufacturing Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-06
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an oil pipe embraces pincers subassembly belongs to oil field oil well drilling and production technical field. The clamp comprises a clamp I and a clamp II which are oppositely arranged, the middle parts of the clamp I and the clamp II are hinged to a mounting frame through a same pin shaft, the bottom of the clamp I is hinged to one end of a hinge rod I through a pin shaft, and the other end of the hinge rod I is hinged to one side of a support through a pin shaft; the bottom of the holding clamp II is hinged with one end of a hinge rod II through a pin shaft, and the other end of the hinge rod II is hinged to the other side of the support through a pin shaft; the mounting bracket is installed on the upper plane of platform, installs the cylinder on the lower plane of platform, and the cylinder piston passes the platform and is connected with the support. The utility model discloses a relative armful pincers I that sets up with embrace pincers II, its synchronous motion that realizes embracing pincers I and embracing pincers II under the drive of lower cylinder piston is favorable to laying with oil pipe centering and with the cooperation of follow-up pressure testing device etc. simple structure, compactness, safe and reliable.

Description

Oil pipe clamp assembly

Technical Field

The utility model relates to an oil field oil well bores and adopts technical field, concretely relates to oil pipe embraces pincers subassembly.

Background

At present, two sides of an existing oil pipe holding clamp assembly are respectively provided with a holding clamp, one side of the holding clamp is fixed, the other side of the holding clamp is connected with a cylinder, opening and closing of the holding clamp are achieved under driving of the cylinder, namely opening and closing of the holding clamp are achieved only through movement of the holding clamp on one side, and in order to adapt to oil pipes with different outer diameters, the holding clamp on two sides and a contact side of the oil pipe are both provided with a half-moon-shaped jaw dental plate.

The existing oil pipe clamp assembly has the following problems: 1. only one side of the holding clamp can move, which is not beneficial to the placement of the oil pipe; 2. the asymmetry of the movement of the holding clamps at the two sides is not beneficial to the centering of the oil pipe, and the matching of the oil pipe and a subsequent pressure test device and the like can be influenced; 3. the equipment is poor in stress condition, obvious in vibration and easy to damage; 4. the contact surface of the holding clamp and the oil pipe is limited within the range of two tooth plates, the clamping force is concentrated, the local stress is large, the stress of the oil pipe is uneven, and the holding effect is poor.

Disclosure of Invention

The utility model aims at overcoming prior art's shortcoming, provide an oil pipe embraces pincers subassembly, its armful pincers I and armful pincers II through relative setting, its synchronous motion that realizes armful pincers I and armful pincers II under the drive of lower cylinder piston is favorable to laying with oil pipe's centering and with the cooperation of follow-up pressure testing device etc. simple structure, compactness, safe and reliable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the oil pipe holding clamp assembly comprises a holding clamp I and a holding clamp II which are oppositely arranged, the middle parts of the holding clamp I and the holding clamp II are hinged to a mounting frame through a same pin shaft, the bottom of the holding clamp I is hinged to one end of a hinge rod I through a pin shaft, and the other end of the hinge rod I is hinged to one side of a support through a pin shaft; the bottom of the holding clamp II is hinged with one end of a hinge rod II through a pin shaft, and the other end of the hinge rod II is hinged to the other side of the support through a pin shaft;

the mounting bracket is installed on the upper plane of platform, installs the cylinder on the lower plane of platform, and the cylinder piston passes the platform and is connected with the support.

As an improvement of the utility model, the inner sides of the holding clamp I and the holding clamp II are provided with two dovetail grooves which are vertically opposite and used for installing the jaw tooth plates.

As an improvement of the utility model, the mounting bracket is H type frame construction, including erecting roof beam I, erecting roof beam II and being used for connecting the crossbeam of erecting roof beam I and erecting roof beam II.

As an improvement of the utility model, the central point of the support is provided with an internal thread hole, and the outer surface of the cylinder piston is provided with an external thread section matched with the internal thread hole.

As an improvement of the utility model, embrace pincers I and embrace pincers II and hinge bar I and hinge bar II for the vertical central plane symmetric distribution of cylinder piston.

The utility model has the advantages that: the utility model discloses an oil pipe embraces pincers subassembly, it is through embracing pincers I and embracing pincers II of relative setting, it realizes embracing pincers I and embracing the synchronous motion of pincers II under the drive of lower cylinder piston, be favorable to laying of oil pipe and centering of oil pipe and with the cooperation of follow-up pressure testing device etc. the mounting bracket is installed on the last plane of platform, install the cylinder on the lower plane of platform, cylinder piston passes the platform and is connected with the support, simple structure, compactness, safety and reliability.

The inner sides of the holding clamp I and the holding clamp II are respectively provided with two dovetail grooves which are vertically symmetrical and used for mounting jaw tooth plates. By arranging the four dovetail grooves, the coaxiality of circular holes formed by the oil pipe and the holding clamp during holding is improved, and the centering of the oil pipe is facilitated; the holding force is applied to the oil pipe through four jaw tooth plates arranged in the dovetail groove, the stress of the oil pipe is uniform and symmetrical, the local stress is small, and the centering and holding of the oil pipe are facilitated. Through adjusting the thickness of dental lamina, this subassembly can adapt to the oil pipe of holding different diameters tightly, and the internal 2 cun of using commonly used at present, 2.5 cun, 3 cun pipe all can use it to hold tightly, and has greatly promoted atress homogeneity and centering accuracy.

The center of the support is provided with an internal thread hole, and the outer surface of the cylinder piston is provided with an external thread section matched with the internal thread hole. The support and the cylinder piston are in threaded connection, the structure is simple, and the assembly and disassembly are convenient.

Embrace pincers I and embrace pincers II and hinge bar I and hinge bar II and for the vertical central plane symmetric distribution of cylinder piston. Embrace pincers I and articulated arm I and embrace pincers II and articulated arm II and form crank link mechanism bilateral symmetry and distribute, increased the symmetry, the equilibrium of the total inertial force and moment of inertia that the subassembly receives, the atress situation of subassembly is ideal, and vibrations weaken, have prolonged its life.

Drawings

Fig. 1 is a schematic structural view of an oil pipe clamping assembly of the present invention;

in the figure, 1, a support; 2. a vertical beam I; 3. a holding clamp I; 4. an oil pipe; 5. a holding clamp II; 6. a cross beam; 7. a vertical beam II; 8. a hinge rod II; 9. a cylinder piston; 10. mounting a platform; 11. a cylinder; 12. articulated pole I.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

It should be noted that the terms of orientation such as left, right, up, down, inside and outside in the embodiments of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting.

As shown in fig. 1, the oil pipe holding clamp assembly comprises a holding clamp I3 and a holding clamp II 5 which are oppositely arranged, the middle parts of the holding clamp I3 and the holding clamp II 5 are hinged to an installation frame through a same pin shaft, the bottom of the holding clamp I3 is hinged to one end of a hinge rod I12 through a pin shaft, and the other end of the hinge rod I12 is hinged to one side of a support 1 through a pin shaft; the bottom of the holding clamp II 5 is hinged to one end of a hinge rod II 8 through a hinge pin, and the other end of the hinge rod II 8 is hinged to the other side of the support 1 through a hinge pin.

The mounting frame is installed on the upper plane of the platform 10, for example, a welded connection or the like can be adopted, and the cylinder 11 is installed on the lower plane of the platform 10. The utility model discloses do not do the restriction to the concrete connection mode of cylinder 11, the through-hole has been seted up at the central point of platform 10, and cylinder piston 9 passes the central through-hole of platform 10 and is connected with support 1.

Preferably, the inner sides of the holding clamp I3 and the holding clamp II 5 are respectively provided with two dovetail grooves which are symmetrical up and down and used for installing jaw tooth plates, the jaw tooth plates are connected in the dovetail grooves through bolts, the device can adapt to tightly hold oil pipes 4 with different diameters by adjusting the thickness of the jaw tooth plates, the existing domestic commonly used pipes of 2 inches, 2.5 inches and 3 inches can be used for tightly holding the oil pipes, and the stress uniformity and the centering accuracy are improved; other detachable modes can be adopted for connection, and the utility model discloses do not do the restriction to its specific connected mode. Wherein, one side of the holding oil pipe 4 is the inner side. The included angle between two dovetail grooves which are distributed up and down symmetrically is preferably 45-75 degrees, and the best included angle is 60 degrees.

Preferably, the mounting bracket is H-shaped frame structure, including vertical beam I2, vertical beam II 7 and be used for connecting vertical beam I2 and vertical beam II 7's crossbeam 6. Wherein, vertical beam I2, vertical beam II 7 and crossbeam 6 are preferably current section bar. The holding clamp I3 and the holding clamp II 5 are hinged to the center of the cross beam 6 through a pin shaft.

Preferably, the center of the support 1 is provided with an internal threaded hole, and the outer surface of the cylinder piston 9 is provided with an external threaded section matched with the internal threaded hole. Through carrying out threaded connection with support 1 and cylinder piston 9, simple structure, easy dismounting.

Preferably, embrace pincers I3 and embrace pincers II 5 and articulated arm I12 and articulated arm II 8 and for the vertical central plane symmetric distribution of cylinder piston 9, realize holding tightly of oil pipe 4 promptly through the crank link mechanism of bilateral symmetry arrangement, oil pipe 4 atress is even, symmetrical, local stress is little, holds tightly effectually.

The utility model discloses an operating principle does, when dashing into gas pressure increase in the cylinder 11, and cylinder piston 9 drives support 1 and moves upwards, embraces pincers I3 and embraces the angle between pincers II 5 and reduce, holds oil pipe 4 tightly. Otherwise, when the outward exhaust pressure of the cylinder 11 is reduced, the cylinder piston 9 moves downwards, the angle between the holding clamp I3 and the holding clamp II 5 is increased, and the oil pipe 4 is loosened. It should be noted that, the utility model discloses an embrace I3 of pincers and embrace articulated structure between pincers II 5 and also can adopt the scissors structure of X type, cylinder piston 9 drives support 1 upward movement promptly, embraces I3 of pincers and embraces the angle increase between pincers II 5, loosens oil pipe 4, and cylinder piston 9 drives support 1 downward movement, embraces I3 of pincers and embraces the angle reduction between pincers II 5, embraces oil pipe 4 tightly. The utility model provides a embrace pincers and hinge bar that correspond and set up constitute crank link mechanism, realize holding tightly and loosening of oil pipe 4 through the crank link mechanism that bilateral symmetry set up promptly, simple structure, compactness, stable in structure, the dependable performance has prolonged its life.

The above is a detailed introduction of the oil pipe clamp assembly provided by the present invention, and a specific example is applied herein to explain the structural principle and the implementation of the present invention, and the above example is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. Oil pipe embraces pincers subassembly, embraces pincers I and embrace pincers II including the armful pincers that set up relatively, its characterized in that: the middle parts of the holding clamp I and the holding clamp II are hinged to the mounting frame through the same pin shaft, the bottom of the holding clamp I is hinged to one end of the hinge rod I through the pin shaft, and the other end of the hinge rod I is hinged to one side of the support through the pin shaft; the bottom of the holding clamp II is hinged with one end of a hinge rod II through a pin shaft, and the other end of the hinge rod II is hinged to the other side of the support through a pin shaft;

2. The oil pipe clamp assembly of claim 1, wherein: the inner sides of the holding clamp I and the holding clamp II are respectively provided with two dovetail grooves which are vertically symmetrical and used for mounting the jaw tooth plates.

3. The oil pipe clamp assembly of claim 1, wherein: the mounting bracket is of an H-shaped frame structure and comprises a vertical beam I, a vertical beam II and a cross beam used for connecting the vertical beam I and the vertical beam II.

4. The oil pipe clamp assembly of claim 1, wherein: an internal thread hole is formed in the center of the support, and an external thread section matched with the internal thread hole is arranged on the outer surface of the cylinder piston.

5. The oil pipe clamp assembly according to any one of claims 1 to 4, wherein: embrace pincers I and embrace pincers II and hinge bar I and hinge bar II for the vertical central plane symmetric distribution of cylinder piston.