Mechanism for controlling stroke in petroleum machining

Abstract

The utility model discloses a mechanism for controlling stroke in petroleum machining, which comprises a mounting seat, two groups of symmetrically distributed mounting rods are fixedly mounted below the mounting seat, first guide rods are slidably mounted in the two groups of mounting rods, second guide rods are slidably mounted in the two groups of first guide rods, and the second guide rods are slidably mounted in the two groups of second guide rods. Limiting seats are fixedly mounted at the ends, away from the mounting rod, of the two sets of second guide rods, adjusting rings are arranged in the limiting seats and sleeved with second gear rings, multiple sets of annularly-distributed adjusting frames are arranged on the limiting seats, and limiting rods are rotationally mounted on the multiple sets of adjusting frames; the limiting seat is matched with the limiting rods annularly distributed on the lower portion to achieve stroke control over a drill rod to be propelled, the drill rod is prevented from being propelled obliquely in the oil exploitation process, and in the stroke control process, the radius of a circle defined by the multiple sets of limiting rods in the limiting seat can be adjusted according to the size of the drill rod which is actually propelled.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum machining technical field, concretely is a kind of mechanism of controlling stroke in petroleum machining. BACKGROUND

[0002] Petroleum exploitation refers to the behavior of mining and extracting oil in the place where oil is stored. In the process of exploiting oil, oil and gas flow from the reservoir to the well bottom, and then rise to the wellhead. In the process of oil exploitation, drilling machinery is needed, and the use of drill pipe requires a stroke control mechanism.

[0003] The mechanism for controlling stroke in petroleum machining in the prior art cannot ensure the vertical advancement of different types of drill pipes when in use, resulting in the inclination of the drill pipe during advancement, which in turn affects the normal working process of oil exploitation. Moreover, the mechanism for controlling stroke used in the prior art is inevitably bonded with oil during advancement, which is inconvenient to clean and seriously affects the service life of the mechanism. Therefore, a mechanism for controlling stroke in petroleum machining is proposed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a mechanism for controlling stroke in petroleum machining to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mechanism for controlling stroke in petroleum machining, comprising a mounting seat, two groups of symmetrically distributed mounting rods are fixedly installed below the mounting seat, a first guide rod is slidingly installed in each of the two groups of mounting rods, a second guide rod is slidingly installed in each of the two groups of first guide rods, a limiting seat is fixedly installed at the end of each of the two groups of second guide rods away from the mounting rod, an adjusting ring is arranged in the limiting seat, the adjusting ring is rotatably connected to the limiting seat through a bearing, a second gear ring is sleeved on the adjusting ring, a plurality of groups of adjusting frames are arranged in a ring shape on the limiting seat, each of the plurality of groups of adjusting frames is rotatably connected to the limiting seat through a mounting shaft, a limiting rod is rotatably installed on each of the plurality of groups of adjusting frames, a clamping seat is fixedly sleeved on the lower end of each of the mounting rod and the first guide rod, an installation ring is arranged in the clamping seat, the installation ring is rotatably connected to the clamping seat through a bearing, and a scraping frame is fixedly installed on the installation ring.

[0006] As a further preferred embodiment of the present technical solution, a gear is sleeved on each of the plurality of groups of mounting shafts, the plurality of groups of gears are arranged in a ring shape on the outer side of the second gear ring, and each of the plurality of groups of gears is meshingly connected to the second gear ring.

[0007] As a further preferred embodiment of the present technical solution, the scraping frame penetrates the clamping seat and is slidingly connected to the clamping seat, and the scraping frame is respectively attached to the outer wall of the corresponding second guide rod or first guide rod.

[0008] As a further preferred of the technical solution, the installation ring is sleeved with a first tooth ring, the clamping seat is provided with a driving wheel, the driving wheel is rotationally connected with the clamping seat through a rotating shaft, the driving wheel is meshingly connected with the first tooth ring, and the clamping seat is fixedly provided with a rubber cover which is fixedly connected with the scraping frame and the clamping seat.

[0009] As a further preferred of the technical solution, the installation rod is provided with a threaded rod, the first guide rod is provided with a threaded pipe, the upper end of the threaded rod penetrates through the installation rod and is rotationally connected with the installation rod through a bearing, the lower end of the threaded rod penetrates through the first guide rod and is threadedly connected with the first guide rod, the upper end of the threaded pipe penetrates through the first guide rod and is rotationally connected with the first guide rod through a bearing, and the lower end of the threaded pipe penetrates through the second guide rod and is threadedly connected with the second guide rod.

[0010] As a further preferred of the technical solution, the threaded rod is provided with two groups of symmetrically distributed limiting grooves, the threaded pipe is provided with two groups of symmetrically distributed limiting blocks, the limiting blocks are correspondingly arranged with the limiting grooves, and the threaded pipe is slidably sleeved with the threaded rod through the limiting blocks.

[0011] The utility model provides a mechanism of control stroke in petroleum machining, has the following beneficial effect:

[0012] The utility model discloses a limiting seat is arranged with the limiting rod of annular distribution below realizes the stroke control of the drill rod of waiting to advance, avoids the drill rod advancing inclination in the process of oil exploitation, leads to the influence oil exploitation's normal work process, and in the stroke control process, the radius surrounded between the plurality of limiting rods in the limiting seat can be adjusted according to the size of actual advancing drill rod, so that the use range of the mechanism of control stroke is more extensive.

[0013] The utility model discloses a clamping seat and scraping frame slidably arranged on the clamping seat realize the cleaning of the surface adhered impurities or oil in the retraction process of the first guide rod and the second guide rod, avoid adhering oil invading the internal structure in the retraction process of the first guide rod and the second guide rod, lead to the service life of the control stroke mechanism is affected. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the utility model;

[0015] Figure 2 It is the sectional view schematic view of the installation rod of the utility model;

[0016] Figure 3 It is the utility model Figure 2 The structure enlarged view of A in the utility model;

[0017] Figure 4It is a sectional view of the limiting seat of the utility model.

[0018] In the figure: 1, mounting seat; 2, mounting rod; 3, first guide rod; 4, second guide rod; 5, limiting seat; 6, threaded rod; 7, threaded tube; 8, limiting groove; 9, limiting block; 10, clamping seat; 11, mounting ring; 12, first tooth ring; 13, driving wheel; 14, scraping frame; 15, rubber cover; 16, adjusting ring; 17, second tooth ring; 18, adjusting frame; 19, mounting shaft; 20, gear; 21, limiting rod. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0020] The utility model provides technical scheme: Figure 1 And Figure 4 As shown in the figure, in the embodiment, a mechanism for controlling stroke in petroleum machining, including mounting seat 1, two groups of symmetrical distribution's mounting rod 2 are fixedly installed below mounting seat 1, first guide rod 3 is slidably installed in two groups of mounting rod 2, second guide rod 4 is slidably installed in two groups of first guide rod 3, limiting seat 5 is fixedly installed at the end away from mounting rod 2 of two groups of second guide rod 4, adjusting ring 16 is equipped in limiting seat 5, adjusting ring 16 is rotatably connected with limiting seat 5 through bearing, second tooth ring 17 is sleeved on adjusting ring 16, a plurality of groups of adjusting frame 18 are arranged in annular distribution on limiting seat 5, a plurality of groups of adjusting frame 18 are rotatably connected with limiting seat 5 through mounting shaft 19, limiting rod 21 is rotatably installed on a plurality of groups of adjusting frame 18, clamping seat 10 is fixedly sleeved on the lower end of mounting rod 2 and first guide rod 3, mounting ring 11 is equipped in clamping seat 10, mounting ring 11 is rotatably connected with clamping seat 10 through bearing, scraping frame 14 is fixedly installed on mounting ring 11, gear 20 is sleeved on a plurality of groups of mounting shaft 19, a plurality of groups of gear 20 are annularly distributed on the outside of second tooth ring 17, a plurality of groups of gear 20 are meshingly connected with second tooth ring 17, according to the model of the drill rod required to be pushed, the rotation of one group of mounting shaft 19 is driven by the motor in limiting seat 5, gear 20 on mounting shaft 19 rotates, a plurality of groups of mounting shaft 19 drive a plurality of groups of adjusting frame 18 to rotate synchronously under the action of second tooth ring 17 and a plurality of groups of gear 20 on adjusting ring 16, and then the adjustment of the circular diameter surrounded by a plurality of groups of limiting rod 21 is realized, so that a plurality of groups of limiting rod 21 fit the drill rod to be pushed, the stroke of the drill rod is limited, and displacement deviation in the process of mechanical pushing of the petroleum drill rod is avoided.

[0021] As Figure 2 And Figure 3As shown, the scraping frame 14 penetrates the card seat 10 and is in sliding connection with the card seat 10, the scraping frame 14 is in close contact with the outer wall of the corresponding second guide rod 4 or first guide rod 3 respectively, the first tooth ring 12 is sleeved on the mounting ring 11, the driving wheel 13 is arranged in the card seat 10, the driving wheel 13 is rotatably connected with the card seat 10 through a rotating shaft, the driving wheel 13 is in meshing connection with the first tooth ring 12, the rubber cover 15 is fixedly installed on the card seat 10, the rubber cover 15 is fixedly connected with the scraping frame 14 and the card seat 10, the threaded rod 6 is arranged in the mounting rod 2, the threaded tube 7 is arranged in the first guide rod 3, the upper end of the threaded rod 6 penetrates the mounting rod 2 and is rotatably connected with the mounting rod 2 through a bearing, the lower end of the threaded rod 6 penetrates the first guide rod 3 and is threadedly connected with the first guide rod 3, the upper end of the threaded tube 7 penetrates the first guide rod 3 and is rotatably connected with the first guide rod 3 through a bearing, the lower end of the threaded tube 7 penetrates the second guide rod 4 and is threadedly connected with the second guide rod 4, two groups of symmetrically distributed limiting grooves 8 are formed in the threaded rod 6, two groups of symmetrically distributed limiting blocks 9 are arranged in the threaded tube 7, the limiting blocks 9 are arranged in correspondence with the limiting grooves 8, the threaded tube 7 is slidably sleeved with the threaded rod 6 through the limiting blocks 9, the limiting seat 5 and the limiting rod 21 advance with the drill rod under the action of the two groups of first guide rods 3 and second guide rods 4, the travel control of the drill rod is realized, the first guide rod 3 and the second guide rod 4 are contaminated with impurities or oil during the advancing process, during the retraction process of the first guide rod 3 and the second guide rod 4, the rotation of the driving wheel 13 driven by the motor in the card seat 10 of the mounting rod 2 and the first guide rod 3 is started, the mounting ring 11 is rotated in the card seat 10 in cooperation with the first tooth ring 12, the scraping frame 14 is synchronously rotated driven by the mounting ring 11, the impurities and oil contaminated on the surface of the retracted first guide rod 3 and second guide rod 4 are cleaned in cooperation with the card seat 10, and the impurities or oil erodes the internal structure of the travel control mechanism.

[0022] The utility model provides a mechanism of controlling stroke in petroleum machining, specific working principle is as follows: in the process of using this mechanism, according to the model of the drill pipe required to advance actually, the rotation of one group of installation shaft 19 in the motor in the limiting seat 5 is driven to start, the rotation of gear 20 on installation shaft 19 follows, the synchronous rotation of multiple sets of installation shaft 19 is driven to start under the action of second tooth ring 17 and multiple sets of gear 20 on adjusting ring 16, and multiple sets of adjusting frame 18, and then the adjustment for the circular diameter of multiple sets of limiting rod 21 is realized, makes multiple sets of limiting rod 21 fit the drill pipe of advancing, and the limiting control of the advancing of drill pipe, avoids the displacement deviation in the mechanical advancing process of petroleum drill pipe, and limiting seat 5 and limiting rod 21 advance together with the drill pipe under the action of two groups of first guide rod 3 and second guide rod 4, realize the stroke control for the drill pipe, and the first guide rod 3 and second guide rod 4 are contaminated with impurities or petroleum in the advancing process, in the process of retracting first guide rod 3 and second guide rod 4, the rotation of driving wheel 13 in the motor in the clamping seat 10 on installation rod 2 and first guide rod 3 is driven to start, and first tooth ring 12 is cooperated to make installation ring 11 rotate in clamping seat 10, and installation ring 11 drives scraper frame 14 to rotate synchronously, and cooperates clamping seat 10 to realize the cleaning of the impurities and petroleum contaminated on the surface of retracting first guide rod 3 and second guide rod 4, avoids that impurities or petroleum erodes the internal structure of stroke control mechanism.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanism for controlling stroke in petroleum machinery processing, characterized in that: The system includes a mounting base (1), under which two sets of symmetrically distributed mounting rods (2) are fixedly mounted. A first guide rod (3) is slidably mounted within each set of mounting rods (2), and a second guide rod (4) is slidably mounted within each set of first guide rods (3). A limiting seat (5) is fixedly mounted at the end of each set of second guide rods (4) away from the mounting rods (2). An adjusting ring (16) is provided within the limiting seat (5), and the adjusting ring (16) is rotatably connected to the limiting seat (5) via a bearing. A second toothed ring is sleeved on the adjusting ring (16). (17) The limiting seat (5) is provided with multiple sets of annularly distributed adjustment frames (18). The multiple sets of adjustment frames (18) are rotatably connected to the limiting seat (5) through the mounting shaft (19). The multiple sets of adjustment frames (18) are rotatably mounted with limiting rods (21). The lower ends of the mounting rod (2) and the first guide rod (3) are fixedly sleeved with a card seat (10). The card seat (10) is provided with an installation ring (11). The installation ring (11) is rotatably connected to the card seat (10) through a bearing. The installation ring (11) is fixedly mounted with a scraper (14).

2. The mechanism for controlling stroke in petroleum machinery processing according to claim 1, characterized in that: Each of the multiple sets of mounting shafts (19) is fitted with a gear (20), and the multiple sets of gears (20) are distributed in a ring on the outside of the second gear ring (17), and the multiple sets of gears (20) are meshed with the second gear ring (17).

3. The mechanism for controlling stroke in petroleum machinery processing according to claim 1, characterized in that: The scraper (14) passes through the card holder (10) and is slidably connected to the card holder (10). The scraper (14) is respectively attached to the outer wall of the corresponding second guide rod (4) or first guide rod (3).

4. The mechanism for controlling stroke in petroleum machinery processing according to claim 1, characterized in that: A first toothed ring (12) is sleeved on the mounting ring (11). A drive wheel (13) is provided inside the card holder (10). The drive wheel (13) is rotatably connected to the card holder (10) through a rotating shaft. The drive wheel (13) is meshed with the first toothed ring (12). A rubber cover (15) is fixedly installed on the card holder (10). The rubber cover (15) is fixedly connected to the scraper (14) and the card holder (10).

5. The mechanism for controlling stroke in petroleum machinery processing according to claim 1, characterized in that: The mounting rod (2) is provided with a threaded rod (6), and the first guide rod (3) is provided with a threaded tube (7). The upper end of the threaded rod (6) passes through the mounting rod (2) and is rotatably connected to the mounting rod (2) through a bearing. The lower end of the threaded rod (6) passes through the first guide rod (3) and is threadedly connected to the first guide rod (3). The upper end of the threaded tube (7) passes through the first guide rod (3) and is rotatably connected to the first guide rod (3) through a bearing. The lower end of the threaded tube (7) passes through the second guide rod (4) and is threadedly connected to the second guide rod (4).

6. The mechanism for controlling stroke in petroleum machinery processing according to claim 5, characterized in that: The threaded rod (6) has two sets of symmetrically distributed limiting grooves (8), and the threaded tube (7) has two sets of symmetrically distributed limiting blocks (9). The limiting blocks (9) are correspondingly arranged with the limiting grooves (8), and the threaded tube (7) is slidably connected to the threaded rod (6) through the limiting blocks (9).

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