CN217504750U

CN217504750U - Automatic core adjusting device for core transfer system

Info

Publication number: CN217504750U
Application number: CN202221197480.1U
Authority: CN
Inventors: 裴学良; 陈锐; 王可可; 刘晗; 阎薪如; 任红; 赵宗锋; 陈勇; 张辉; 张锐
Original assignee: Sinopec Oilfield Service Corp; Sinopec Shengli Petroleum Engineering Corp; Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Current assignee: Sinopec Oilfield Service Corp; Sinopec Shengli Petroleum Engineering Corp; Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-27
Anticipated expiration: 2032-05-17

Abstract

The utility model provides an automatic rock core adjusting device, include: a liner tube for carrying a core; the coil units are uniformly arranged along the circumferential direction of the outer side of the liner tube, and each coil unit comprises an excitation coil and an induction coil which are symmetrically arranged; a unit array analog switch array for controlling the coil units to be opened and closed in sequence; and the detection system is electrically connected with the unit array analog switch array, wherein the liner tube can move relative to the coil unit along the central axis of the liner tube, so that the electromagnetic field of the exciting coil is changed, and the change is transmitted to the detection system by the induction coil. The utility model discloses a set up a plurality of coil units, evenly set up along the circumferencial direction of bushing pipe, can carry out the accuracy of rapid survey, reinforcing resistivity to the resistivity of each position of circumferencial direction of rock core under the condition of not destroying bushing pipe and rock core. And the measurement can be carried out while the rock core moves, so that the transfer efficiency is improved, and the continuity of resistivity measurement is enhanced.

Description

Automatic core adjusting device for core transfer system

Technical Field

The utility model belongs to the technical field of the geological survey, specifically, relate to an automatic adjusting device of rock core for rock core transfer system.

Background

The core is a cylindrical rock sample taken out of the hole by using an annular core drill and other coring tools according to the requirements of geological exploration work or engineering.

The existing core movement measuring device comprises components such as a transfer barrel and a measuring barrel, and in the process of core movement and detection, gaps between a liner tube for bearing a core and the barrels are basically reduced as much as possible, and the core can be ensured to be in contact with a measuring element by means of the bending strength of the liner tube for bearing the core, so that the measuring inaccuracy is reduced. The problem that a slender core is attached to the bottom of a transfer barrel or a measuring barrel under the action of gravity is not considered in the existing device, the moving resistance is increased due to the fact that the core is in contact with the inner surface of each barrel in moving, the power required by a moving mechanism in the existing device for moving a liner tube for bearing the core is increased, and the problem that the core measurement is inaccurate due to the fact that the core is not centered can be solved.

SUMMERY OF THE UTILITY MODEL

To the technical problem as above, the utility model aims at providing a rock core automatic adjusting device for rock core transfer system, when it can solve the transfer rock core, long and thin rock core is difficult to the automation and moves the big problem of frictional force between two parties.

According to the utility model discloses, a rock core automatic adjusting device for rock core transfer system is provided, include: the hollow cylindrical sealing joint is used for being connected with a component of the core transfer system; a liner for carrying a core, the liner disposed within the sealed joint and movable within the sealed joint; a distance measuring sensor disposed on an outer surface of the sealing joint for measuring a position of the liner; and an automatic centering mechanism disposed on an outer surface of the sealing joint and diametrically opposite the distance measuring sensor; the automatic centering mechanism comprises an adjusting rod and a motor, the adjusting rod is arranged along the radial sliding type direction of the sealing joint, the motor is used for controlling the adjusting rod to move, and the adjusting rod can penetrate through the wall of the sealing joint and is abutted to the liner tube to be used for adjusting the position of the liner tube.

In one embodiment, the sealing joint comprises a left joint and a right joint, an outer sealing cylinder is arranged between the left joint and the right joint through threads, and the distance measuring sensor and the automatic centering mechanism are arranged on the cylinder wall of the outer sealing cylinder.

In one embodiment, the sealing joint comprises a vertical plane, and the two distance measuring sensors are arranged in a radial direction of the sealing joint and are symmetrical relative to the vertical plane.

In one embodiment, the two automatic centering mechanisms are symmetrical to each other by taking a vertical plane as a symmetrical plane.

In one embodiment, the automatic centering mechanism further includes a guide rod, a guide nut and a lead screw, the guide rod is arranged on the wall of the outer sealing cylinder along the radial direction of the outer sealing cylinder, the guide nut is slidably arranged on the guide rod, one end of the adjusting rod, which is far away from the liner tube, is fixedly connected with the guide nut, the motor is fixedly connected with the outer sealing cylinder, the lead screw is connected with an output shaft of the motor, and the lead screw is connected with the guide nut through threads.

In one embodiment, an inner sealing cylinder sleeved on the liner pipe is further arranged between the left joint and the right joint, a dovetail through hole corresponding to the position of the adjusting rod is formed in the wall of the inner sealing cylinder, a groove is formed in one end, close to the liner pipe, of the adjusting rod, a ball body used for being abutted against the liner pipe is arranged in the groove, and the ball body can move in the dovetail through hole along the axial direction of the inner sealing cylinder.

In one embodiment, a through hole corresponding to the position of the distance measuring sensor is further formed in the wall of the inner sealing cylinder, and the through hole enables the distance measuring sensor to measure the distance from the liner tube to the distance measuring sensor.

In one embodiment, a sealing ring is arranged between the distance measuring sensor and the outer sealing cylinder, and a sealing ring is arranged between the adjusting rod and the outer sealing cylinder.

In one embodiment, the dovetail through-holes have a larger aperture on the side distal to the liner than on the side proximal to the liner.

In one embodiment, the inner sealing barrel is connected with the left joint and the right joint in a plugging mode.

Compared with the prior art, the method and the device have the following advantages.

The utility model discloses set up distance measurement sensor, through measuring the bushing pipe that bears the weight of the rock core to distance measurement sensor's distance, measure the bushing pipe and whether be in sealing joint's central point and put. Then, the motor drives the screw rod to rotate, so that the guide screw drives the position of the adjusting rod, and the position of the liner tube is adjusted to be located at the center of the sealing joint. The utility model discloses when can solving and shifting the rock core, long and thin rock core is difficult to the automation and moves the big problem of frictional force placed in the middle to reduce the required power of equipment removal rock core, improve transfer efficiency, keep rock core measuring accuracy.

Drawings

The present invention will be described with reference to the accompanying drawings.

Fig. 1 shows a schematic diagram of an embodiment of an automatic core adjustment device according to the present invention;

fig. 2 shows a schematic cross-sectional view according to the invention;

fig. 3 shows a schematic cross-sectional view along the direction a-a in fig. 2.

In the figure: 1. sealing the joint; 11. a left joint; 12. a right connector; 13. a vertical plane; 2. a liner tube; 3. a distance measuring sensor; 4. an automatic centering mechanism; 41. adjusting a rod; 411. a groove; 412. a sphere; 42. a guide bar; 43. guiding a screw nut; 44. a screw rod; 45. a motor; 5. an outer sealing cylinder; 6. an inner sealing cylinder; 61. dovetail through holes; 62. a through hole; 71. a first seal ring; 72. a second seal ring; 73. and a third sealing ring.

In the present application, all the figures are schematic and are only intended to illustrate the principles of the present invention and are not drawn to scale.

Detailed Description

In the prior art, a core transfer system includes various components such as a transfer drum, a measurement drum, and the like. Fig. 1 shows a structure of an automatic core adjustment apparatus 100 according to the present invention. As shown in fig. 1 and 3, an automatic core adjustment device 100 includes a seal joint 1 for being disposed between adjacent components of a core transfer system, and a liner 2 for carrying a core is movable within the seal joint 1, i.e., an inner diameter of the seal joint 1 is larger than an outer diameter of the liner 2. A distance measuring sensor 3 and an automatic centering mechanism 4 are respectively arranged at the upper part and the lower part of the sealing joint 1. Through this kind of setting, distance measuring sensor 3 can measure the distance of distance measuring sensor 3 to bushing pipe 2 to judge whether bushing pipe 2 is located the central point of sealing joint 1 and put, then feed back to automatic centering mechanism 4 according to the measuring result, automatic centering mechanism 4 adjusts the position of bushing pipe 2.

It will be readily appreciated that the feedback of the measurement results of the distance measuring sensor 3 to the automatic centering mechanism 4 may be implemented using existing electronic component modules, which are not described in detail herein.

In a particular embodiment, the sealing joint 1 comprises a left joint 11 and a right joint 12. An outer sealing cylinder 5 is arranged between the left joint 11 and the right joint 12 in a threaded connection mode. Further, a third seal ring 73 is provided between the outer seal tube 5 and the left and

right nipples

11 and 12, and is further sealed. The distance measuring sensor 3 is disposed along a radial direction of the outer packing cylinder 5 so as to accurately detect the position of the liner 2. By providing the distance measuring sensor 3 on the outer seal cartridge 5, it is possible to easily replace the distance measuring sensor 3 in the event of damage.

In a particular embodiment, a first sealing ring 71 is arranged between the distance measuring sensor 3 and the outer cylinder 5 in order to maintain the pressure inside the sealing joint 1.

According to the utility model discloses an embodiment, as shown in fig. 2, the quantity of automatic mechanism 4 placed in the middle is two, and two automatic mechanisms 4 placed in the middle use vertical face 13 as the symmetry plane mutual symmetry. In this arrangement, the two automatic centering mechanisms 4 can cooperate to more precisely control the position of the liner 2 so that the liner 2 is centered in the sealing joint 1. Two distance measuring sensors 3 are also provided, and the two distance measuring sensors 3 are also symmetrical to each other with the vertical surface 13 as a symmetry plane. In this arrangement, the two distance measuring sensors 3 can cooperate to more accurately measure the position of the liner 2.

In a specific embodiment, the automatic centering mechanism 4 includes an adjusting rod 41 movably disposed along a radial direction of the outer cylinder 5 and a motor 45 controlling the extension and contraction of the adjusting rod 41. One end of the adjustment rod 41 near the liner tube 2 abuts the liner tube 2. With this arrangement, the motor 45 can control the adjusting rod to extend and contract, so as to adjust the position of the liner tube 2 relative to the sealing joint 1, and the liner tube 2 is located at the center of the sealing joint 1.

In a particular embodiment, the automatic centering mechanism 4 further comprises a guide rod 42, a guide nut 43, and a lead screw 44. The central axis of the guide rod 42 is fixedly arranged on the wall of the outer sealing cylinder 5 along the radial direction of the outer sealing cylinder 5. The guide nut 43 is slidably disposed on the guide rod 42 and fixedly connected to the adjustment rod 41. The motor 45 is fixedly arranged with the outer sealing cylinder 5. The screw 44 is disposed on an output shaft of the motor 45 and is connected to the guide screw 43 by a screw thread. With such an arrangement, the motor 45 rotates to drive the screw rod 44 to rotate, and the screw rod 44 is matched with the guide nut 43 through threads, so that the guide nut 43 moves along the guide rod 42, and the adjusting rod 41 is driven to move. In this way, the adjustment rod 41 enables the position of the liner 2 to be adjusted so that the liner 2 is centred in the sealing joint 1.

In a preferred embodiment, a recess 411 is provided at the end of the adjustment rod 41 near the liner 2, and a ball 412 is provided in the recess 411. An inner sealing cylinder 6 is arranged between the left joint 11 and the right joint 12 in an inserting manner, and a dovetail through hole 61 corresponding to the ball 412 is arranged on the cylinder wall of the inner sealing cylinder 6. Ball 412 can make a point contact with liner 2 through dovetail through-hole 61, in which arrangement the frictional resistance of liner 2 can be reduced.

In a preferred embodiment, groove 411 and dovetail through-hole 61 are arranged to extend in the direction of the central axis of sealing joint 1. That is, the diameter of ball 412 is less than the extended length of slot 411 and dovetail through-hole 61. In this arrangement, the ball 412 is able to move within the recess 411 and dovetail through-hole 61 in the direction of the central axis of the sealing joint 1, increasing the mobility of the ball 412 and further reducing the frictional resistance of the liner 2.

In a preferred embodiment, dovetail holes 61 are larger in diameter on the side distal to liner 2 than on the side proximal to liner 2. Under the action of the dovetail through-hole 61, the ball 412 does not pass through the inner sealing cylinder 6. This arrangement of dovetail through-hole 61 prevents ball 412 from extending into inner seal tube 6 and damaging liner 2 in the event of an accident with motor 45 and adjustment rod 41.

According to the utility model discloses an embodiment still is provided with the direct hole 62 that corresponds with distance measurement sensor 3 on the section of thick bamboo wall of interior sealed tube 6. That is, the distance measuring sensor 3 can measure its distance to the liner 2 through the through hole 62. A third sealing ring 73 is arranged between the sealing joint 1 and the outer sealing cylinder 5, a first sealing ring 71 is arranged between the distance measuring sensor 3 and the outer sealing cylinder 5, and a second sealing ring 72 is arranged between the adjusting rod 41 and the outer sealing cylinder 5. By this arrangement, the pressure inside the sealing joint 1 is ensured.

The automatic core adjustment device 100 may be disposed between any of the components of the core transfer system, such as at both ends of the transfer drum. The utility model discloses set up distance measurement sensor 3, through measuring 2 distance to distance measurement sensor 3's of bushing pipe that bear the weight of the rock core, measure bushing pipe 2 and whether be in sealing joint 1's central point and put. The motor 45 can adjust the moving distance of the adjusting rod 41 according to the feedback of the distance measuring sensor 3, so that the liner tube 2 is always in a horizontal and centered state, and the accuracy of core measurement or other operations on the core is ensured. The utility model discloses when can solving and shifting the rock core, long and thin rock core is difficult to the automation and moves the big problem of frictional force placed in the middle to reduce the required power of equipment removal rock core, improve transfer efficiency, keep rock core measuring accuracy.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the present invention in any way. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic core adjustment device for a core transfer system, comprising:

the hollow cylindrical sealing joint (1) is used for being connected with a component of the core transfer system;

a liner (2) for carrying a core, the liner (2) being arranged within the sealing joint (1) and being movable within the sealing joint (1);

a distance measuring sensor (3) arranged on the outer surface of the sealing joint (1) for measuring the position of the liner (2);

and an automatic centering mechanism (4) arranged on the outer surface of the sealing joint (1) and diametrically opposite to the distance measuring sensor (3);

the automatic centering mechanism (4) comprises an adjusting rod (41) arranged along the radial direction of the sealing joint (1) in a sliding mode and a motor (45) for controlling the adjusting rod (41) to move, and the adjusting rod (41) can penetrate through the cylinder wall of the sealing joint (1) to be abutted against the liner pipe (2) and is used for adjusting the position of the liner pipe (2).

2. The automatic core adjustment device according to claim 1, characterized in that the sealing joint (1) comprises a left joint (11) and a right joint (12), an outer sealing cylinder (5) is arranged between the left joint (11) and the right joint (12) through threads, and the distance measuring sensor (3) and the automatic centering mechanism (4) are both arranged on the wall of the outer sealing cylinder (5).

3. Core automatic adjustment device according to claim 2, characterized in that the sealing joint (1) comprises a vertical surface (13), and that two distance measuring sensors (3) are arranged in the radial direction of the sealing joint (1) and are symmetrical with respect to the vertical surface (13).

4. The automatic core adjustment device as claimed in claim 3, characterized in that the two automatic centering means (4) are symmetrical to each other with respect to a vertical plane (13) as a plane of symmetry.

5. The automatic core adjustment device according to claim 4, wherein the automatic centering mechanism (4) further comprises a guide rod (42), a guide nut (43) and a screw rod (44), the guide rod (42) is arranged on the wall of the outer sealing cylinder (5) along the radial direction of the outer sealing cylinder (5), the guide nut (43) is arranged on the guide rod (42) in a sliding manner, one end, far away from the liner tube (2), of the adjusting rod (41) is fixedly connected with the guide nut (43), the motor (45) is fixedly connected with the outer sealing cylinder (5), the screw rod (44) is connected with an output shaft of the motor (45), and the screw rod (44) is connected with the guide nut (43) through threads.

6. The automatic core adjustment device according to claim 5, wherein an inner sealing cylinder (6) sleeved on the liner tube (2) is further arranged between the left joint (11) and the right joint (12), a dovetail through hole (61) corresponding to the position of the adjusting rod (41) is arranged on the wall of the inner sealing cylinder (6), a groove (411) is arranged at one end of the adjusting rod (41) close to the liner tube (2), a ball (412) used for abutting against the liner tube (2) is arranged in the groove (411), and the ball (412) can move in the dovetail through hole (61) along the axial direction of the inner sealing cylinder (6).

7. Automatic core adjustment device according to claim 6, characterized in that a through hole (62) corresponding to the position of the distance measuring sensor (3) is further arranged on the wall of the inner sealing cylinder (6), and the through hole (62) enables the distance measuring sensor (3) to measure the distance from the liner (2) to the distance measuring sensor (3).

8. Automatic core adjustment device according to claim 7, characterized in that a sealing ring is arranged between the distance measuring sensor (3) and the outer sealing cylinder (5), and a sealing ring is arranged between the adjustment rod (41) and the outer sealing cylinder.

9. The automatic core adjustment device as claimed in claim 8, characterized in that the aperture of the dovetail through hole (61) on the side away from the liner (2) is larger than the aperture on the side close to the liner (2).

10. The automatic core adjustment device as claimed in claim 9, characterized in that the inner sealing cylinder (6) is connected with the left connector (11) and the right connector (12) in a plugging manner.