Inner supporting device for machining oil pumping pipe

Abstract

The utility model relates to an inner support device for processing an oil pumping pipe, which comprises an annular baffle plate, a through hole is arranged in the center of the annular baffle plate, a telescopic driving mechanism is arranged on one side of the annular baffle plate, a driving rod is arranged at the output end of the telescopic driving mechanism, and the driving rod penetrates through the through hole and extends out towards the other side of the annular baffle plate. At least three sets of wedge-shaped sliding blocks are evenly distributed on the outer wall of the driving rod along the circumference, each set of wedge-shaped sliding blocks are arranged at intervals in the axial direction, the other side of the annular baffle is provided with a sliding way corresponding to each set of wedge-shaped sliding blocks, the sliding ways are arranged in the radial direction of the annular baffle, and each sliding way is provided with an arc-shaped supporting plate. The bottoms of the arc-shaped supporting plates are in sliding connection with the sliding ways, the inner wall of each arc-shaped supporting plate is provided with a wedge-shaped fixing block corresponding to each wedge-shaped sliding block, sliding grooves are formed in the sides, facing the wedge-shaped sliding blocks, of the wedge-shaped fixing blocks, and the wedge-shaped sliding blocks are in sliding connection with the corresponding sliding grooves; the device is faster, simpler and more convenient to operate, time-saving and labor-saving, and the processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil well pipe production technical field, specifically is used for processing the inside support device of oil well pipe. BACKGROUND

[0002] Oil well pipe is needed in oil field operation, and most of the oil well pipe is connected by multiple sections, and each section of the oil well pipe needs to be finished, and an inside support clamp needs to be used when the outer surface is processed, the existing inside support clamp mostly adopts a screw rod form, and the screw rod needs to be screwed for many turns when being opened or contracted, which is time-consuming and laborious, and is not conducive to improving the processing efficiency. SUMMARY

[0003] The utility model discloses a technical problem in the background art is solved, and provide the inside support device for processing oil well pipe.

[0004] The utility model provides the following technical scheme: the inside support device for processing oil well pipe, including a ring baffle, the center of ring baffle is equipped with through -hole, and one side of ring baffle is equipped with telescopic drive mechanism, and the output of telescopic drive mechanism is equipped with a drive rod, and the drive rod passes through the through -hole and extends to the other side of ring baffle, and the outer wall of drive rod is evenly distributed with at least three groups of wedge -shaped sliding blocks along the circumference, and each group of wedge -shaped sliding blocks is spaced apart and is equipped with a plurality of along the axial direction, and the other side of ring baffle is equipped with a slide corresponding to each group of wedge -shaped sliding blocks, and the slide is arranged along the radial direction of ring baffle, and each slide is equipped with an arc support plate, and the arc support plate bottom is slidably connected with the slide, and the inner wall of each arc support plate is equipped with a wedge -shaped fixed block corresponding to each wedge -shaped sliding block, and the side of wedge -shaped fixed block towards wedge -shaped sliding block is equipped with a sliding groove, and the wedge -shaped sliding block is slidably connected with the corresponding sliding groove.

[0005] Preferably, the telescopic drive mechanism adopts a pneumatic cylinder or an electric cylinder.

[0006] Preferably, the inclined surface of the wedge-shaped fixed block is provided with an L-shaped baffle on both sides, the sliding groove is formed between the two L-shaped baffles, the inclined surface of the wedge-shaped sliding block is provided with a T-shaped sliding part, and the T-shaped sliding part is matched with the sliding groove.

[0007] Preferably, the arc of the arc-shaped support plate is 60°-120°.

[0008] Compared with the prior art, the utility model has the beneficial effects that: the tightening or loosening is realized through the telescopic form, the operation is faster and more convenient, time and labor are saved, and the processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0010] Figure 2The front view of the utility model;

[0011] Figure 3 For Figure 2 The A-A view of the utility model;

[0012] Figure 4 For Figure 3 The B-B view of the utility model;

[0013] Figure 5 The plan view of the utility model;

[0014] In the figure: 1, annular baffle; 2, slide; 3, sliding part; 4, arc-shaped support plate; 5, drive rod; 6, telescopic drive mechanism; 7, wedge-shaped fixed block; 8, wedge-shaped sliding block. DETAILED DESCRIPTION

[0015] Please refer to Figures 1-5 , the embodiment is used for processing the inner support device of pumping pipe, including a annular baffle 1, the center of annular baffle 1 is equipped with through-hole, one side of annular baffle 1 is equipped with telescopic drive mechanism 6, the output end of telescopic drive mechanism 6 is equipped with a drive rod 5, drive rod 5 passes through the through-hole and extends to the other side of annular baffle 1, the outer wall of drive rod 5 is evenly distributed with at least three groups of wedge-shaped sliding block 8 along circumference, each group of wedge-shaped sliding block 8 is spaced apart along the axial direction and is equipped with multiple, the other side of annular baffle 1 is equipped with a slide 2 corresponding to each group of wedge-shaped sliding block 8, slide 2 is arranged along the radial direction of annular baffle 1, each slide 2 is equipped with an arc-shaped support plate 4, the bottom of arc-shaped support plate 4 is slidably connected with slide 2, the inner wall of each arc-shaped support plate 4 is equipped with a wedge-shaped fixed block 7 corresponding to each wedge-shaped sliding block 8, the side of wedge-shaped fixed block 7 towards wedge-shaped sliding block 8 is equipped with a sliding groove, wedge-shaped sliding block 8 is slidably connected with the corresponding sliding groove.

[0016] Preferably, the telescopic drive mechanism 6 adopts a pneumatic cylinder or an electric cylinder.

[0017] Preferably, the wedge-shaped fixed block 7 is equipped with L-shaped baffle on both sides of the inclined surface, the sliding groove is formed between the two L-shaped baffles, the T-shaped sliding part 3 is arranged on the inclined surface of the wedge-shaped sliding block 8, and the T-shaped sliding part 3 is matched with the sliding groove.

[0018] Preferably, the arc of the arc-shaped support plate 4 is 60°-120°.

[0019] The working principle of the utility model is as follows: when using, one end of the arc-shaped supporting plate 4 is inserted into the pipe orifice of the oil pumping pipe to be processed, the annular baffle 1 is close to the edge of the pipe orifice, then the telescopic drive mechanism 6 is controlled to act, the driving rod 5 is inwards retracted, under the force transmission of each wedge-shaped sliding block 8, each arc-shaped supporting plate 4 is driven to spread outwards along the radial direction, so that the inner wall of the oil pumping pipe is supported tightly, when it is needed to loosen, the telescopic drive mechanism 6 is reversely actuated, the driving rod 5 is extended outwards, each arc-shaped supporting plate 4 can be driven to shrink towards the center synchronously, during the shrinking process, the pulling force is transmitted through the sliding groove formed by the two L-shaped baffles and the T-shaped sliding part 3.

[0020] The utility model can be suitable for oil pumping pipes with different diameters, the inner diameter of the oil pumping pipe can be supported by the device within the stroke range of the arc-shaped supporting plate 4; the operation is very fast and convenient when supporting or loosening, time and labor are saved, and the processing efficiency is improved.

Claims

1. An internal mandrel apparatus for machining oil extraction tubing, characterized by: The device comprises a ring-shaped baffle, a through hole is arranged in the center of the ring-shaped baffle, an extension drive mechanism is arranged on one side of the ring-shaped baffle, an output end of the extension drive mechanism is provided with a driving rod, the driving rod extends to the other side of the ring-shaped baffle through the through hole, the outer wall of the driving rod is provided with at least three groups of wedge-shaped sliding blocks which are arranged along the circumference, each group of wedge-shaped sliding blocks is provided with a plurality of wedge-shaped sliding blocks which are arranged along the axial direction, the other side of the ring-shaped baffle is provided with a slide corresponding to each group of wedge-shaped sliding blocks, the slide is arranged along the radial direction of the ring-shaped baffle, each slide is provided with an arc-shaped support plate, the bottom of the arc-shaped support plate is in sliding connection with the slide, the inner wall of each arc-shaped support plate is provided with a wedge-shaped fixed block corresponding to each wedge-shaped sliding block, the side of the wedge-shaped fixed block which faces the wedge-shaped sliding block is provided with a sliding groove, and the wedge-shaped sliding block is in sliding connection with the corresponding sliding groove.

2. An internal mandrel apparatus for machining oil well tubing as defined in claim 1, wherein: The extension drive mechanism is a pneumatic cylinder or an electric cylinder.

3. The internal mandrel device for machining oil well tubing of claim 1 wherein: The slope of the wedge-shaped fixed block is provided with an L-shaped baffle on both sides, the sliding groove is formed between the two L-shaped baffles, the slope of the wedge-shaped sliding block is provided with a T-shaped sliding part, and the T-shaped sliding part is matched with the sliding groove.

4. The internal mandrel device for machining oil well tubing of claim 1 wherein: The arc of the arc-shaped support plate is 60-120 degrees.

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