Turntable slip structure

Abstract

The utility model discloses a rotary table slip structure, which relates to the technical field of petroleum drilling and workover operation equipment and comprises a driving cylinder, a rotary table, a slip seat, a balance beam, a slip body, a Y-like driving rod and a base horizontally connected below the balance beam, and the rotary table, the slip seat, the balance beam and the slip body are sequentially arranged from outside to inside. The base is in a wheel body shape with an outer wheel groove, the driving cylinder is vertically arranged, a cylinder body can be arranged outside the side wall of the rotating disc in a sliding and separating mode, the open end of the driving rod is arranged on the base in a half-surrounding mode, the end portion of the driving rod is inserted into the outer wheel groove, and a piston rod of the driving cylinder is hinged to the other end of the driving rod. According to the utility model, the problems of explosion-proof hidden dangers and inconvenience in maintenance are solved, the driving parts such as the driving cylinder and the driving rod can be quickly and conveniently disassembled, assembled and moved, and finally, the safety and the operation flexibility are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well drilling and repairing equipment, in particular to a rotary table slip structure. Background Art

[0002] During oil well drilling and repair operations, the turntable is generally installed at the wellhead, and then the slips are installed inside the turntable through the slip seat. Traditionally, slips are often controlled and driven by pneumatic or hydraulic means, that is, the slip body is connected to the balance beam, and the balance beam is driven up and down by pneumatic or hydraulic means, which drives the slip body to open and close. However, such pneumatic or hydraulically driven slips often have many external pipelines on site. When the wellhead is located in an area with a high explosion-proof level, there are great explosion-proof risks and poor safety.

[0003] The related research on the cava that can be installed in the turntable in the prior art, such as the electric cava in patent application CN215718544U, can solve the problem of numerous pipelines on site by using electric cylinders as driving components, reduce explosion-proof risks to a certain extent, and improve safety. However, the driving components in the prior art are often located inside the cava seat or even the turntable, which not only causes a power source to exist at the wellhead, resulting in explosion-proof risks, limited improvement in safety, and no space for maintenance and is relatively troublesome. At the same time, most of the driving components in the prior art cannot be quickly and conveniently disassembled and moved relative to the other components of the cava, resulting in general operational flexibility and further affecting safety.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a turntable cava structure to solve the technical problems proposed in the above background technology that the driving components in the prior art are often located inside the cava seat, which not only makes the explosion-proof hidden danger still exist, the improvement of safety is still limited, but also makes maintenance inconvenient, and most of the driving components in the prior art cannot be disassembled and moved quickly and conveniently, resulting in general operational flexibility and further affecting safety.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A turntable cava structure comprises a turntable, a cava seat, a cava body, a balance beam, a drive cylinder, a drive rod, and a base horizontally connected to the bottom of the balance beam. The turntable, cava seat, balance beam and cava body are arranged in sequence from the outside to the inside. The balance beam is provided with a cava body connecting rod and a cava body connecting pin that cooperate with it. The balance beam is connected to the cava body through the cava body connecting rod and the cava body connecting pin. A plurality of guide rods are vertically fixed to the bottom of the balance beam. The guide rods are connected to the top of the base after extending out of the cava seat. The base is in the shape of a wheel body with an outer wheel groove. The drive cylinder is vertically arranged and the cylinder body is slidably and separately arranged outside the side wall of the turntable. One end of the opening of the drive rod is half-surrounded by the base and the end is inserted into the outer wheel groove. The piston rod of the drive cylinder is hinged to the other end of the drive rod.

[0008] Furthermore, the driving rod is Y-shaped and includes a driving part in a semicircular ring shape, and a connecting rod part fixed to the middle position of the outer peripheral wall of the driving part. Two connecting rod parts are arranged parallel to each other on the left and right. The outer side wall of each connecting rod part close to the driving part is vertically fixed with a supporting side plate between the outer peripheral wall of the driving part. A connecting pin II matching with it is passed through the piston rod of the driving cylinder and is hinged between the inner walls of the two connecting rod parts away from the driving part through the connecting pin II. A J-shaped pulley seat is vertically provided on the outer wall side of each connecting rod part. The two pulley seats are arranged parallel to each other on the left and right. The pulley seats include a rectangular plate and an arc plate integrally connected to the bottom of the rectangular plate. A connecting pin III is passed through the lower end of each arc plate and is hinged to the middle position of the connecting rod part on the same side through the connecting pin III. The cylinder body of the driving cylinder is clamped between the two rectangular plates. Two mounting plates are vertically fixed to the top of the cylinder body of the driving cylinder, and the two mounting plates are arranged parallel to and opposite to each other on the left and right sides, and each mounting plate is penetrated by a connecting pin IV and is positioned and connected to the top inner wall of the rectangular plate on the same side through the connecting pin IV. The driving cylinder is also provided with a guide rail seat matching therewith, and the guide rail seat comprises a vertically arranged connecting plate, and a plurality of bolts are vertically penetrated on the connecting plate and are positioned and connected to the outer wall of the turntable through bolts. Two guide rail plates are horizontally fixed on the side wall of the connecting plate away from the turntable, and the two guide rail plates are arranged parallel to and opposite to each other on the left and right sides and are respectively arranged on the outer wall sides of the two rectangular plates. The outer wall of each rectangular plate is provided with pulleys above and below the guide rail plate on the same side, and the pulleys are slidably matched with the guide rail plate on the same side. Two vertically arranged rollers are respectively installed at both ends of the inner circumferential wall of the driving part, and the rollers are both clamped in the outer wheel groove.

[0009] Furthermore, a plurality of sockets are vertically fixed on the top of the base, the sockets are all cylindrical and evenly distributed along the circumference of the base, the lower ends of the guide rods are inserted into the interior of the sockets one by one and connecting pins I are provided between the corresponding sockets.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is provided with a turntable, and a slip seat, a balance beam and a slip body connected to the balance beam are sequentially arranged inside the turntable from the outside to the inside. By arranging a driving cylinder outside the side wall of the turntable, and making the driving cylinder, the driving rod, the base and the balance beam work in sequence, an external driving structure coordinated with the slip body is formed, which greatly reduces the explosion-proof hidden dangers and greatly improves the safety. That is, when the piston rod of the driving cylinder is extended and retracted, and the driving rod is driven to swing up and down, the base is horizontally connected to the bottom of the balance beam and is in the shape of a wheel with an outer wheel groove, and the opening end of the driving rod is semi-enclosed by the base and the end is inserted in the outer wheel groove, which jointly pushes the balance beam to move up and down, and realizes The opening and closing of the slip body can be realized, and the external drive setting not only facilitates the maintenance of the driving cylinder, but also reduces the occupation of the internal space of the slip seat, and facilitates the maintenance of the slip body and other components inside the slip seat; and on this basis, the cylinder body of the driving cylinder can be slidably separated from the side wall of the turntable, and the open end of the driving rod is inserted into the outer wheel groove. The matching setting realizes the fast and convenient disassembly and assembly of the driving cylinder and the driving rod. That is, when not working, there is no need to perform any bolt disassembly operation, and the driving cylinder and the driving rod can be quickly moved out of the base as a whole, away from the turntable, to ensure that there is no power source at the wellhead, which effectively improves the operation flexibility while further improving the safety.

[0012] 2. The driving rod in the utility model includes a driving part in a semicircular shape, and two connecting rod parts fixed at the middle position of the outer peripheral wall of the driving part. In the utility model, two rollers are respectively installed at both ends of the inner peripheral wall of the driving part, and the rollers are both clamped in the outer wheel groove. While ensuring that the driving rod can be quickly moved out of the base, that is, the driving rod can be moved out of the base by moving the rollers out, the linkage and coordination effect of the driving rod and the base is fully guaranteed, and finally the safety is further improved.

[0013] 3. The two pulley seats in the utility model both include a rectangular plate and an arc plate. The guide rail seat in the utility model includes a connecting plate and two guide rail plates. In the utility model, the lower end of the arc plate is hinged on the outer wall of the connecting rod part of the driving rod on the same side. The cylinder body of the driving cylinder is clamped and connected between the two rectangular plates. The two guide rail plates are respectively arranged on the outer wall sides of the two rectangular plates. The outer wall of each rectangular plate is equipped with a pulley that is slidably matched with the guide rail plate above and below the guide plate on the same side, so that the two pulley seats can move synchronously back and forth along the guide rail seat through the pulleys, thereby further ensuring that the pulley seat, the driving cylinder and the driving rod as a whole can be quickly moved out of the base and away from the turntable, and finally further ensuring safety and operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A schematic diagram of the structure of the slip body provided in the embodiment of the utility model in a closed state;

[0015] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0016] Figure 3 A schematic diagram of the structure of the slip body provided in the embodiment of the utility model in an open state;

[0017] Figure 4 A schematic diagram of a driving rod provided in an embodiment of the utility model being moved out of a base;

[0018] In the figure: 1, turntable, 2, cava seat, 3, balance beam, 4, driving cylinder, 5, cava body, 6, driving rod, 61, driving part, 62, connecting rod part, 63, roller, 64, supporting side plate, 7, base, 71, outer wheel groove, 8, guide rod, 9, socket seat, 10, connecting pin I, 11, connecting pin II, 12, pulley seat, 121, rectangular plate, 122, arc plate, 13, connecting pin III, 14, mounting plate, 15, connecting pin IV, 16, guide rail seat, 161, connecting plate, 162, guide rail plate, 17, bolt, 18, pulley, 19, cava body connecting rod, 20, cava body connecting pin. DETAILED DESCRIPTION

[0019] The following examples are used to further illustrate the content of the utility model, but do not limit the application of the utility model.

[0020] See also Figure 1 to Figure 4, which shows a turntable cava structure, including a driving cylinder 4, a base 7, a pulley seat 12, a guide rail seat 16, a turntable 1 (the functions and structures of conventional components such as the turntable are well known in the art, and the connection settings are also common knowledge, so no further explanation is given here), a cava seat 2 arranged inside the turntable 1, and a balance beam 3 and a cava body 5 arranged inside the cava seat 2 (the basic structures such as the cava seat, balance beam, cava body, and control mechanism of the existing cava are not specifically described here, but their functions should not be limited thereto), the balance beam 3 is provided with a cava body connecting rod 19 and a cava body connecting pin 20 matched therewith, and is connected to the cava body 5 through the cava body connecting rod 19 and the cava body connecting pin 20, (the existing balance beam is connected to the cava body through a connecting rod and a connection method and a connection method The structure is well known in the art, so no further explanation is given here). The base 7 is horizontally arranged and is in the shape of a wheel with an outer wheel groove 71. A cylindrical socket 9 is also vertically fixed to the top of the base 7 (conventional fixing methods such as welding are well known in the art, so no further explanation is given here). Four sockets 9 are provided and are evenly distributed at the four corners of the base 7. Four guide rods 8 are vertically fixed to the bottom of the balance beam 3. After the four guide rods 8 extend out of the cava seat 2 at the same time, they are inserted into the socket 9 one by one. The lower ends of the guide rods 8 are also radially penetrated by connecting pins Ⅰ10, and the guide rods 8 are connected to the corresponding sockets 9 through the connecting pins Ⅰ10 (locking components such as the cotter pin equipped with the normal connecting pin are not specifically described here, but their function realization should not be limited thereby).

[0021] Furthermore, the pulley seat 12 is vertically arranged and two are arranged parallel to each other on the left and right sides. Each pulley seat 12 has a J-shaped structure and is formed by a rectangular plate 121 and an arc plate 122 connected from top to bottom in an integral manner. The drive cylinder 4 is vertically arranged and the cylinder body is located between the two rectangular plates 121. Two mounting plates 14 are fixed to the top of the cylinder body of the drive cylinder 4 in parallel and relatively on the left and right sides. The two mounting plates 14 are respectively vertically arranged on the top of the inner wall side of the two rectangular plates 121. A connecting pin IV 15 is commonly penetrated between each mounting plate 14 and the rectangular plate 121 on the same side. The drive cylinder 4 is positioned and connected to the rectangular plate 121 through the connecting pin IV 15. The guide rail seat 16 includes a connecting plate 161 and a guide rail plate 162. The connecting plate 161 has a rectangular structure. The connecting plate 161 is vertically provided with bolts 17 at the four corners thereof and is positioned and connected to the outer wall of the turntable 1 by means of the bolts 17. Two guide plates 162 are provided and are arranged parallel to each other on the left and right sides. The two guide plates 162 are horizontally fixed to the side of the connecting plate 161 facing the cylinder body of the driving cylinder 4. The two guide plates 162 are also respectively arranged on the outer wall sides of the two rectangular plates 121. The outer wall of each rectangular plate 121 is provided with pulleys 18 above and below the guide plates 162 on the same side (in the present embodiment, the upper and lower pulleys 18 are two pulleys 18 arranged side by side at intervals). The pulleys 18 move back and forth along the guide plates 162 on the same side.

[0022] Furthermore, the driving rod 6 includes a semicircular driving portion 61, and two vertically arranged rollers 63 are respectively installed at both ends of the inner peripheral wall of the driving portion 61. After the driving portion 61 is semi-enclosed by the base 7, the two rollers 63 are clamped in the outer wheel groove 71. A connecting rod portion 62 is also fixed in the middle position of the outer peripheral wall of the driving portion 61. Two connecting rod portions 62 are arranged parallel to each other on the left and right. The two connecting rod portions 62 and the driving portion 61 are arranged in a Y-shaped manner. A connecting pin II1 is pierced on the piston rod of the driving cylinder 4. 1 and is hinged between the inner walls of the two connecting rods 62 at one end away from the driving part 61 through the connecting pin II 11. The lower ends of the arc plates 122 are arranged one by one at the middle position of the outer wall side of the connecting rods 62. The connecting rods 62 are all provided with connecting pins III 13 between the arc plates on the outer wall side thereof and are all hinged to the arc plates 122 through the connecting pin III 13. The outer side wall of the end of each connecting rod 62 close to the driving part 61 is vertically fixed with a supporting side plate 64 to the outer peripheral wall of the driving part 61.

[0023] The working principle and workflow of the utility model are as follows:

[0024] The piston rod of the driving cylinder 4 is extended and retracted, driving the driving rod 6 to swing, thereby pushing the guide rod 8 and the balance beam 3 to move up and down. The up and down movement of the balance beam 3 drives the slip body 2 to open and close;

[0025] When driving is not needed, the pulley 18 on the pulley seat 12 can slide on the guide plate 162 of the guide seat 16, driving the pulley seat 12 away from the turntable 1, and driving the drive cylinder 4 away from the turntable 1 (in this process, the roller 63 of the drive rod 6 is also moved out of the outer wheel groove 71 of the base 7), ultimately ensuring that the drive cylinder 4, together with the drive rod 6 and the pulley seat 12, moves out of the base 7 as a whole, away from the turntable 1, and there is no power source at the wellhead.

[0026] In addition, the slip seat 2, the slip body 5, the balance beam 3, the guide rod 8, the base 7 and other components can be hoisted out of the turntable 1 as a whole.

Claims

1. A turntable slip structure, comprising a driving cylinder, a turntable, a slip seat, a balance beam and a slip body connected to the balance beam, which are arranged in sequence from the outside to the inside. It is characterized in that It also includes a Y-shaped driving rod and a base horizontally connected to the bottom of the balance beam. The base is in the shape of a wheel with an outer wheel groove. The driving cylinder is vertically arranged and the cylinder body is slidably and separately arranged outside the side wall of the turntable. The open end of the driving rod is half-surrounded by the base and the end is inserted into the outer wheel groove. The piston rod of the driving cylinder is hinged to the other end of the driving rod.

2. A turntable slip structure according to claim 1, It is characterized in that A plurality of guide rods are vertically fixed to the bottom of the balance beam, and the guide rods are connected to the top of the base after extending out of the slip seat.

3. A turntable slip structure according to claim 2, It is characterized in that A plurality of cylindrical sockets are vertically fixed on the top of the base, and the sockets are evenly distributed along the circumference of the base. The lower ends of the guide rods are inserted into the interior of the sockets one by one and are each provided with a connecting pin I between the corresponding sockets.

4. A turntable slip structure according to claim 1, It is characterized in that The driving rod includes a semicircular driving part and a connecting rod part fixed at the middle position of the outer peripheral wall of the driving part. Two vertically arranged rollers are respectively installed at both ends of the inner peripheral wall of the driving part. The rollers are both clamped in the outer wheel grooves. Two connecting rod parts are arranged parallel to each other on the left and right.

5. A turntable slip structure according to claim 4, It is characterized in that A connecting pin II matching with the driving cylinder is passed through the piston rod of the driving cylinder and is hinged between the inner walls of one end of the two connecting rod parts away from the driving part through the connecting pin II.

6. A turntable slip structure according to claim 5, It is characterized in that A pulley seat is vertically provided on the outer wall side of each connecting rod part, and the two pulley seats are arranged parallel to each other on the left and right. The pulley seats are arranged in a J shape and include a rectangular plate and an arc plate integrally connected to the bottom of the rectangular plate. A connecting pin III is passed through the lower end of each arc plate and is hinged to the middle position of the connecting rod part on the same side through the connecting pin III.

7. A turntable slip structure according to claim 6, It is characterized in that The cylinder body of the driving cylinder is clamped between two rectangular plates, and two mounting plates are vertically fixed on the top of the cylinder body of the driving cylinder. The two mounting plates are arranged parallel to each other on the left and right. A connecting pin IV is passed through each mounting plate and is positioned and connected to the top inner wall of the rectangular plate on the same side through the connecting pin IV.

8. A turntable slip structure according to claim 7, It is characterized in that The driving cylinder is also provided with a guide rail seat cooperating therewith, and the guide rail seat includes a vertically arranged connecting plate, a plurality of bolts are vertically penetrated on the connecting plate and are positioned and connected to the outer wall of the turntable by bolts, and two guide rail plates are horizontally fixed on the side wall of the connecting plate away from the turntable, and the two guide rail plates are arranged parallel to each other on the left and right and are respectively arranged on the outer wall sides of the two rectangular plates, and the outer wall of each rectangular plate is installed with pulleys that slide and cooperate with the guide rail plate above and below the guide rail plate on the same side.

9. A turntable slip structure according to claim 4, It is characterized in that A supporting side plate is vertically fixed between the outer side wall of one end of each connecting rod portion close to the driving portion and the outer peripheral wall of the driving portion.

10. The turntable slip structure according to claim 1, It is characterized in that The balance beam is provided with a slip body connecting rod and a slip body connecting pin matched therewith, and the balance beam is connected with the slip body through the slip body connecting rod and the slip body connecting pin.

Images