A power tong for jointing oil country tubular goods without leaving a mark

Abstract

The utility model discloses a kind of no-pressure mark oil pipe sleeve drill rod power tongs, comprising: base;Vertical arrangement on the support column of the base;Back wrench I-beam fixed seat, the back wrench I-beam fixed seat is set on the base;With the support column and back wrench I-beam fixed seat are connected shroud;With the upper end of the support column is connected head plate frame.The novel no-pressure mark oil pipe sleeve drill rod power tongs is more accurate with the connection of pipe body, and when clamping pipe body, shroud is closely fitted with pipe body under the reaction force of spring, pipe body is protected while being clamped, avoid the situation that mark will be left on pipe body after pipe body is tightened, to avoid the damage to pipe body, guarantee the integrity of pipe body, to reach the extension pipe body service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic tong technical field, especially relate to a power tong of oil pipe sleeve pipe drill rod without pressure mark. BACKGROUND

[0002] In the oil pipe, sleeve pipe, drill pipe thread of oil field well mouth, to make the connection of oil pipe and drill pipe convenient, stability is good, usually want to use a pipe power tong in the screwing and unscrewing.

[0003] The existing power tong can clamp any pipe column, but its structure is relatively complex, and many parts are involved, especially the existence of gear engaging pair, which not only increases the machining precision requirement and manufacturing difficulty, but also easily clamps iron filings or other hard debris in the gear engaging pair, which easily causes the engaging pair to be stuck and easily damages the pipe body. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a power tong of oil pipe sleeve pipe drill rod without pressure mark, which solves one or more of the above technical problems.

[0005] The utility model provides a power tong of oil pipe sleeve pipe drill rod without pressure mark, which comprises:

[0006] A base;

[0007] A support column vertically arranged on the base;

[0008] A back wrench I-shaped steel fixing seat arranged on the base;

[0009] A shield connected with the support column and the back wrench I-shaped steel fixing seat;

[0010] A head plate frame connected with the upper end of the support column.

[0011] In some embodiments, the base comprises:

[0012] A base frame comprising a first base frame and a second base frame, which are arranged in parallel;

[0013] A fixing plate arranged between the first base frame and the second base frame.

[0014] In some embodiments, the support column comprises:

[0015] A support leg fixedly connected with the base frame;

[0016] A spring pin, a first spring and a spring shell are sleeved on the support column, the spring shell is arranged at the upper portion of the first spring, the spring pin is arranged at the lower portion of the first spring, the spring shell is fixedly connected with the shield, and the shield is controlled to ascend or descend by compressing or stretching the first spring.

[0017] In some embodiments, the shield comprises:

[0018] A shield upper cover plate;

[0019] A shield lower cover plate fixedly connected with the shield upper cover plate;

[0020] A shield cover plate connecting strip arranged between the shield upper cover plate and the shield lower cover plate and used for connecting the shield upper cover plate and the shield lower cover plate;

[0021] A shield support plate fixedly connected with the spring shell.

[0022] In some embodiments, a back clamp oil cylinder arranged in the shield is further included.

[0023] In some embodiments, the back clamp H-shaped steel fixing seat comprises:

[0024] A fixed support plate arranged at the bottom of the back clamp H-shaped steel fixing seat and arranged on the fixed plate;

[0025] A back clamp H-shaped steel upper support arranged at the upper portion of the fixed support plate;

[0026] An upper spring support plate, a second spring and a lower spring support plate arranged on the back clamp H-shaped steel upper support, the upper spring support plate and the lower spring support plate being fixedly connected with the shield, and the shield being controlled to ascend or descend by compressing or stretching the second spring;

[0027] A back clamp H-shaped steel connecting plate arranged at the upper portion of the back clamp H-shaped steel upper support and provided with a connecting support block fixedly connected with the brow frame.

[0028] In some embodiments, the brow frame comprises:

[0029] An upper brow frame;

[0030] A lower brow frame corresponding to the upper brow frame;

[0031] An upper face plate, a peripheral plate and a cover plate model arranged between the upper brow frame and the lower brow frame.

[0032] In some embodiments, the upper brow frame comprises an eccentric shaft handle,

[0033] The upper panel is provided with an eccentric shaft corresponding to the eccentric shaft handle;

[0034] The outer peripheral plate is provided with a notched gear in the middle, a brow roller provided in the notched gear, a brow roller pin provided on the brow roller, a door provided on the outer side of the outer peripheral plate, and a door handle provided on the door;

[0035] The cover plate model is provided with a bearing.

[0036] Beneficial effects: the connection between the pressure mark-free oil pipe sleeve pipe drill rod power clamp and the pipe body is more precise, and when clamping the pipe body, the shield closely fits the pipe body under the reaction force of the spring, the pipe body is protected while being clamped, the situation that marks are left on the pipe body after the pipe body is clamped is avoided, damage to the pipe body is avoided, the integrity of the pipe body is ensured, and the service life of the pipe body is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the pressure mark-free oil pipe sleeve pipe drill rod power clamp of the utility model;

[0038] Figure 2 It is an exploded view of the pressure mark-free oil pipe sleeve pipe drill rod power clamp of the utility model;

[0039] Figure 3 It is a structural schematic diagram of the brow frame of the utility model. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0041] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0042] As shown in Figure 1 A pressure mark-free oil pipe sleeve pipe drill rod power clamp, comprising:

[0043] A base 1 is provided.

[0044] A support column 2 is vertically arranged on the base 1.

[0045] A back pincers I-beam fixing seat 3 is arranged on the base 1.

[0046] A shroud 4 is connected with the support column 2 and the back pincers I-beam fixing seat 3.

[0047] A head plate frame 5 is connected with the upper end of the support column 2.

[0048] As shown in Figures 1-2 A power tong for a non-marking oil pipe casing drill rod includes:

[0049] A base 1 is provided.

[0050] A support column 2 is vertically arranged on the base 1.

[0051] A back pincers I-beam fixing seat 3 is arranged on the base 1.

[0052] A shroud 4 is connected with the support column 2 and the back pincers I-beam fixing seat 3.

[0053] A head plate frame 5 is connected with the upper end of the support column 2.

[0054] Specifically,

[0055] The base 1 includes:

[0056] A base frame 11 includes a first base frame 111 and a second base frame 112, and the first base frame 111 and the second base frame 112 are arranged in parallel.

[0057] A fixing plate 12 is arranged between the first base frame 111 and the second base frame 112.

[0058] Further,

[0059] The support column 2 includes:

[0060] A support leg 21 is fixedly connected with the base frame 11.

[0061] A spring pin 22, a first spring 23 and a spring shell 24 are sleeved on the support column 2, the spring shell 24 is arranged at the upper portion of the first spring 23, the spring pin 22 is arranged at the lower portion of the first spring 23, and the spring shell 24 is fixedly connected with the shroud 4, and the shroud 4 is controlled to rise or fall by compressing or stretching the first spring 23.

[0062] Further,

[0063] The back pincers I-beam fixing seat 3 includes:

[0064] A fixed support plate 31 is arranged at the bottom of the back clamp I-beam fixed seat 3, and the fixed support plate 31 is arranged on the fixed plate 12;

[0065] A back clamp I-beam upper support 32 is arranged at the upper portion of the fixed support plate 31; an upper spring support plate 321, a second spring 322 and a lower spring support plate 323 are arranged on the back clamp I-beam upper support 32, the upper spring support plate 321 and the lower spring support plate 323 are fixedly connected with the shroud 4, and the shroud 4 is controlled to rise or fall by compressing or stretching the second spring 322;

[0066] A back clamp I-beam connecting plate 33 is arranged at the upper portion of the back clamp I-beam upper support 32, and a connecting support block 331 is arranged on the back clamp I-beam connecting plate 33, and the connecting support block 331 is fixedly connected with the brow frame 5.

[0067] Further,

[0068] The shroud 4 comprises:

[0069] A shroud upper cover plate 41;

[0070] A shroud lower cover plate 42 fixedly connected with the shroud upper cover plate 41;

[0071] A shroud cover plate connecting strip 43 arranged between the shroud upper cover plate 41 and the shroud lower cover plate 42, used for connecting the shroud upper cover plate 41 and the shroud lower cover plate 42;

[0072] A shroud support plate 44 fixedly connected with the spring shell 24;

[0073] A back clamp oil cylinder 45 in the shroud 4.

[0074] As Figure 3 shown, the brow frame 5 comprises:

[0075] An upper brow frame 51;

[0076] A lower brow frame 52 corresponding to the upper brow frame 51;

[0077] An upper panel 53, a peripheral panel 54 and a cover plate model 55 arranged between the upper brow frame 51 and the lower brow frame 52.

[0078] Further,

[0079] The upper brow frame 51 comprises an eccentric shaft handle 511,

[0080] The upper panel 53 is provided with an eccentric shaft 531 corresponding to the eccentric shaft handle 511;

[0081] A gear gap 541 is arranged in the middle of the peripheral plate 54, a plate roller 5411 is arranged in the gear gap 541, the plate roller 5411 is provided with a plate roller pin 5412, a door 542 is arranged on the outer side of the peripheral plate 54, and a door handle 543 is arranged on the door 542.

[0082] The cover plate model 55 is provided with a bearing 551.

[0083] In conclusion, the utility model discloses a pressure markless oil pipe sleeve pipe drill rod power tong, which is more precise in the connection with the pipe body, and when clamping the pipe body, the shield closely adheres to the pipe body under the reaction force of the spring, protects the pipe body when clamping the pipe body, avoids leaving marks on the pipe body after clamping the pipe body, further avoids damaging the pipe body, guarantees the integrity of the pipe body, thereby prolonging the service life of the pipe body.

[0084] The above description is only the preferred mode of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the creative concept of the utility model, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the utility model.

Claims

1. A power tong for use with a pressureless oil country tubular goods drill pipe, the power tong comprising: It comprises: a base (1); a support column (2) vertically arranged on the base (1); a back clamp I-beam fixing seat (3) arranged on the base (1); a shroud (4) connected with the support column (2) and the back clamp I-beam fixing seat (3); a head plate frame (5) connected with the upper end of the support column (2).

2. A power tong for use with a pressureless oil country tubular goods drill pipe as defined in claim 1, wherein, The base (1) comprises: a chassis (11) comprising a first chassis (111) and a second chassis (112) arranged in parallel; a fixing plate (12) arranged between the first chassis (111) and the second chassis (112).

3. A power tong for use with a pressureless oil country tubular goods drill pipe as defined in claim 1, wherein, The support column (2) comprises: a support leg (21) fixedly connected with the chassis (11); a spring pin (22), a first spring (23) and a spring shell (24) sleeved on the support column (2), the spring shell (24) being arranged at the upper portion of the first spring (23), the spring pin (22) being arranged at the lower portion of the first spring (23), and the spring shell (24) being fixedly connected with the shroud (4), the shroud (4) being controlled to rise or fall by compressing or stretching the first spring (23).

4. A power tong for oil country external casing drill pipe according to claim 3, wherein, The shroud (4) comprises: a shroud upper cover plate (41); a shroud lower cover plate (42) fixedly connected with the shroud upper cover plate (41); a shroud cover plate connecting strip (43) arranged between the shroud upper cover plate (41) and the shroud lower cover plate (42) for connecting the shroud upper cover plate (41) and the shroud lower cover plate (42); a shroud support plate (44) fixedly connected with the spring shell (24).

5. A power tong for use with a pressureless oil tubing drill pipe as defined in claim 3 wherein, A back clamp oil cylinder (45) arranged in the shroud (4) is further included.

6. A power tong for oil country external casing drill pipe as defined in claim 3 wherein, The back clamp I-beam fixing seat (3) comprises: a fixing support plate (31) arranged at the bottom of the back clamp I-beam fixing seat (3) and arranged on the fixing plate (12); a back clamp I-beam upper support (32) arranged at the upper portion of the fixing support plate (31); an upper spring support plate (321), a second spring (322) and a lower spring support plate (323) arranged on the back clamp I-beam upper support (32), the upper spring support plate (321) and the lower spring support plate (323) being fixedly connected with the shroud (4), the shroud (4) being controlled to rise or fall by compressing or stretching the second spring (322); a back clamp I-beam connecting plate (33) arranged at the upper portion of the back clamp I-beam upper support (32), and a connecting block (331) arranged on the back clamp I-beam connecting plate (33), the connecting block (331) being fixedly connected with the head plate frame (5).

7. A power tong for use with a pressureless oil country tubular goods as defined in claim 1, wherein, The head plate frame (5) comprises: an upper head plate frame (51); a lower head plate frame (52) corresponding to the upper head plate frame (51). An upper panel (53), a peripheral plate (54) and a cover plate model (55) are arranged between the upper and lower brow plate frames (51, 52).

8. A power tong for use with a pressureless oil country tubular goods drill pipe as defined in claim 7, wherein, The upper brow plate frame (51) comprises an eccentric shaft handle (511), The upper panel (53) is provided with an eccentric shaft (531) corresponding to the eccentric shaft handle (511); The peripheral plate (54) is provided with a notched gear (541) in the middle, a brow plate roller (5411) arranged in the notched gear (541), a brow plate roller pin (5412) arranged on the brow plate roller (5411), a door (542) arranged on the outer side of the peripheral plate (54), and a door handle (543) arranged on the door (542); The cover plate model (55) is provided with a bearing (551).

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