阅读说明：本技术 一种辅助吊卡 (Auxiliary elevator ) 是由 肖春霞 陈世龙 张建 于 2019-11-06 设计创作，主要内容包括：一种辅助吊卡,包括主体左页、主体右页、驱动机构、联结机构、传动机构、锁闩和锁紧活块,主体左页和主体右页的一端可转动连接,主体左页不与主体右页连接的一端设置有凹槽,于主体左页上沿着主体左页的延伸方向依次可转动的设置驱动机构、联结机构和锁闩,且驱动机构的驱动端和联结结构的一端可转动连接,联结机构的另一端通过传动机构和锁闩进行传动连接,主体右页不与主体左页连接的一端对应设置有与锁闩相适配的锁闩槽,并于主体右页上设置可上下移动的锁紧活块,锁紧活块和主体左页对接的一端对应设置有与凹槽相适配的凸台。该辅助吊卡可自动实现机械双重保险,操作简单,安全可靠,既大大减轻工人劳动强度,又能提高钻修井效率。(An auxiliary elevator comprises a main body left page, a main body right page, a driving mechanism, a connecting mechanism, a transmission mechanism, a lock latch and a locking loose piece, wherein one end of the main body left page and one end of the main body right page are rotatably connected, one end of the main body left page, which is not connected with the main body right page, is provided with a groove, the driving mechanism, the connecting mechanism and the lock latch are sequentially and rotatably arranged on the main body left page along the extending direction of the main body left page, the driving end of the driving mechanism and one end of the connecting structure are rotatably connected, the other end of the connecting mechanism is in transmission connection with the lock latch through the transmission mechanism, one end of the main body right page, which is not connected with the main body left page, is correspondingly provided with the lock latch groove matched with the lock latch, the locking loose piece capable of moving up and down is arranged on the main body right page, and one. The auxiliary elevator can automatically realize mechanical double insurance, is simple to operate, safe and reliable, greatly reduces the labor intensity of workers, and can improve the well drilling and repairing efficiency.)

1. The utility model provides an auxiliary elevator, includes main part left side page or leaf, main part right side page or leaf, actuating mechanism, coupling mechanism, drive mechanism, hasp and locking loose piece, its characterized in that: the lock comprises a main body left page and a main body right page, wherein one end of the main body left page is rotatably connected with one end of the main body right page, one end of the main body left page, which is not connected with the main body right page, is provided with a groove, a driving mechanism, a connecting mechanism and a lock latch are sequentially and rotatably arranged on the main body left page along the extending direction of the main body left page, the driving end of the driving mechanism is rotatably connected with one end of the connecting structure, the other end of the connecting mechanism is in transmission connection with the lock latch through the transmission mechanism, one end of the main body right page, which is not connected with the main body left page, is correspondingly provided with a lock latch groove matched with the lock latch, a locking loose piece capable of moving up and down is arranged on the main body right page, and one end, which is butted with the main body left.

2. An auxiliary elevator as defined in claim 1, wherein: and a guide block is arranged on the left page or/and the right page of the main body, and the guide block is positioned at the rotary connection part of the left page and the right page of the main body.

3. An auxiliary elevator as defined in claim 2, wherein: the guide edge of the guide block is arc-shaped, the arc edge of the guide block is in the horizontal direction, and a distance exists between the arc edge of the guide block and the inner side edge of the left hinge of the main body and the inner side edge of the right hinge of the main body after being annularly closed, and the distance is larger than the protruding width of the shaft shoulder of the tubular column.

4. An auxiliary elevator as defined in claim 1, wherein: the driving mechanism comprises a hydraulic cylinder, and the transmission mechanism comprises a connecting rod.

5. An auxiliary elevator as defined in claim 1, wherein: the connecting mechanism is provided with three connecting ends which are respectively connected with the left page of the main body, the driving mechanism and the transmission mechanism in a rotating way through shaft pins.

6. An auxiliary elevator as defined in claim 1, wherein: the lock latch is respectively connected with the left page of the main body and the transmission mechanism in a rotating way through a shaft pin.

7. An auxiliary elevator as defined in claim 1, wherein: the tail end of the lock latch is provided with a clamping hook, and a clamping block is correspondingly arranged in the lock latch groove.

8. An auxiliary elevator as defined in claim 1, wherein: be provided with a plurality of through-hole on the main part right page or leaf, the through-hole includes the first through-hole and the second through-hole of coaxial intercommunication, first through-hole is less than the second through-hole, on the locking loose piece with the through-hole correspondence is provided with a plurality of screw hole, sets up the direction double-screw bolt in a plurality of through-hole respectively, the upper segment of direction double-screw bolt with the screw hole carries out screw thread fastening connection, the bottom and the fastening nut of direction double-screw bolt carry out screw thread fastening connection, just the bottom of direction double-screw bolt and fastening nut's total footpath length are greater than the internal diameter length of first through-hole just is less than the internal diameter length of second.

9. An auxiliary elevator as defined in claim 1 or 8, wherein: the right page of the main body is provided with a plurality of accommodating cavities, and the accommodating cavities are internally provided with compression springs respectively.

10. An auxiliary elevator as defined in claim 1, wherein: the auxiliary elevator also comprises an elevator lining, and the elevator lining is detachably arranged on the left page of the main body and the inner side of the locking loose piece.

Technical Field

The invention relates to the field of petroleum and natural gas drilling and workover operations, in particular to an auxiliary elevator with automatic locking double insurance.

Background

The auxiliary lifting block is indispensable in the petroleum and natural gas drilling and workover operation, the traditional auxiliary lifting block is mainly opened and closed by means of manual operation, although the operation is simple, the labor intensity of workers is improved to a certain extent, and the operation efficiency is reduced to a great extent. In addition, with the continuous development of the well drilling and repairing automation operation technology, a single elevator matched with the well drilling and repairing automation operation technology is required to be used, the automatic opening and closing of the elevator are realized, and the safety and the reliability of an operation site are required to be increased while the automation operation is provided.

Disclosure of Invention

The invention aims to provide an auxiliary elevator which can automatically realize mechanical double insurance, is simple to operate, safe and reliable, greatly reduces the labor intensity of workers and improves the well drilling and repairing efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

an auxiliary elevator comprises a main body left page, a main body right page, a driving mechanism, a connecting mechanism, a transmission mechanism, a latch and a locking loose piece, one end of the main body left page and one end of the main body right page are rotatably connected, one end of the main body left page, which is not connected with the main body right page, is provided with a groove, and a driving mechanism, a coupling mechanism and a lock latch are sequentially and rotatably arranged on the main body left page along the extending direction of the main body left page, the driving end of the driving mechanism is rotatably connected with one end of the coupling structure, the other end of the coupling structure is in transmission connection with the lock latch through the transmission mechanism, a lock latch groove matched with the lock latch is correspondingly arranged at one end of the right page of the main body, which is not connected with the left page of the main body, a locking loose piece capable of moving up and down is arranged on the right page of the main body, and a boss matched with the groove is correspondingly arranged at one end, butted with the left page of the main body, of the locking loose piece; after the left page and the right page of the main body are closed, the driving mechanism sequentially passes through the connecting mechanism and the transmission mechanism to realize the driving control of the latch, so that the latch is buckled into the latch groove to realize the locking of the left page and the right page of the main body;

correspondingly, the guide block is arranged on the left body page or/and the right body page, the guide block is positioned at the rotating connection position of the left body page and the right body page, after the left body page and the right body page are rotated away, a rotating space exists at the rotating connection position of the main body page and the right body page, and the pipe column is easily clamped into the space to cause the main body page and the right body page to be difficult to be annularly closed, so that the pipe column can be prevented from being clamped into the space through the guide block, and the situation that the pipe column is difficult to be annularly closed is avoided;

correspondingly, the guide edge of the guide block is arc-shaped, the arc edge of the guide block is in the horizontal direction, and a distance exists between the arc edge of the guide block and the inner side edge of the main body after the left leaf and the right leaf are annularly closed, and the distance is greater than the protruding width of the shaft shoulder of the tubular column, so that the guide block is prevented from obstructing the putting-in of the tubular column;

correspondingly, the driving mechanism comprises a hydraulic cylinder, and the transmission mechanism comprises a connecting rod;

correspondingly, the connecting mechanism is provided with three connecting ends which are respectively in rotary connection with the left page of the main body, the driving mechanism and the transmission mechanism through shaft pins;

correspondingly, the lock latch is respectively and rotationally connected with the left page of the main body and the transmission mechanism through a shaft pin;

correspondingly, the tail end of the latch is provided with a clamping hook, a clamping block is correspondingly arranged in the latch groove, and the clamping hook is used for hooking the clamping block;

correspondingly, a plurality of through holes are formed in the right page of the main body, the through holes comprise a first through hole and a second through hole which are coaxially communicated, the first through hole is smaller than the second through hole, a plurality of threaded holes are formed in the locking loose piece corresponding to the through holes, guide studs are respectively arranged in the through holes, the upper sections of the guide studs are in threaded fastening connection with the threaded holes, the bottom ends of the guide studs are in threaded fastening connection with fastening nuts, the total diameter length of the bottom ends of the guide studs and the fastening nuts is larger than the inner diameter length of the first through hole and smaller than the inner diameter length of the second through hole, the guide studs and the locking loose piece move in the guide direction of the guide studs, and the upward moving distance of the guide studs and the locking loose piece is controlled through the matching of the fastening nuts and the first through holes;

correspondingly, a plurality of containing cavities are formed in the right page of the main body, compression springs are respectively arranged in the containing cavities, under the condition of no external force and under the pushing action of the compression springs, the locking movable block slides upwards to the limit position, the upward sliding of the locking movable block can drive a boss on the locking movable block to be separated from the groove, and the automatic unlocking of the left page and the right page of the main body is realized;

correspondingly, the auxiliary elevator further comprises an elevator lining, wherein the elevator lining is detachably arranged on the left page of the main body and the inner side of the locking loose piece, and different pipe columns are buckled by replacing the elevator linings with different specifications.

The invention has the beneficial effects that:

1) after the left page and the right page of the main body are closed, the driving mechanism sequentially passes through the connecting mechanism and the transmission mechanism to realize the driving control of the latch, so that the latch is buckled into the latch groove, and the locking of the left page and the right page of the main body is realized, which is a first heavy automatic locking safety;

2) the locking loose piece moves downwards under the action of external force, and the boss on the locking loose piece is clamped in the groove of the left page of the main body, so that the locking states of the left page and the right page of the main body are further improved, and the locking state is a second automatic locking safety;

3) under the action of a compression spring, the locking loose piece slides upwards until reaching a limit position, the upward movement of the locking loose piece drives the lug boss on the locking loose piece to be separated from the groove, the automatic unlocking and automatic setting of the left page and the right page of the main body are realized, and the working efficiency is greatly facilitated;

4) through setting up the guide block, can prevent that the tubular column card from going into in the rotation space of main part homepage and main part right page to avoid taking place the condition that main part homepage and main part right page are difficult to the ring and close.

Drawings

FIG. 1 is a schematic structural view of an auxiliary elevator according to an embodiment of the present invention, wherein guide studs and compression springs are shown in perspective view;

fig. 2 is a schematic structural view of an auxiliary elevator according to an embodiment of the present invention in an engaged state;

fig. 3 is a schematic structural view of an auxiliary elevator according to an embodiment of the present invention in an opened state;

FIG. 4 is a schematic diagram of an auxiliary elevator gripping a tubular string according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of the locking loose piece and the left page of the main body in a locking state;

FIG. 6 is a schematic structural view of the locking loose piece and the left page of the main body in an unlocked state;

in the figure:

1. a main body left page; 11. a groove; 12. a guide block;

2. a main body right page; 21. a clamping block;

3. a hydraulic cylinder;

4. a coupling mechanism;

5. a connecting rod;

6. a latch; 61. a hook;

7. locking the loose piece; 71. a boss;

8. a guide stud; 81. fastening a nut;

9. a compression spring;

10. an elevator liner.

Detailed Description

As shown in fig. 1 to 3, in one embodiment of the present invention, the auxiliary elevator includes a main body left leaf 1, a main body right leaf 2, a driving mechanism, a coupling mechanism 4, a transmission mechanism, a latch 6 and a locking loose piece 7, and in this embodiment, for the sake of simplicity of explanation, the driving mechanism is provided as a hydraulic cylinder 3 and the transmission mechanism is provided as a link 5;

in the embodiment, in order to simplify the description, the guide block 12 is arranged on the left body page 1, the guide block 12 is arranged at the rotating connection position of the left body page 1 and the right body page 2, the guide block 12 is positioned at the rotating connection position of the left body page 1 and the right body page 2, the tubular column is prevented from being clamped into the space through the guide block 12, the guide edge of the guide block 12 is in a circular arc shape, the circular arc edge of the guide block 12 is in the horizontal direction, and a distance exists between the circular arc edge and the inner side edge of the left body page 1 and the right body page 2 after the circular combination, and the distance is greater than the projecting width of the tubular column shaft shoulder (as shown in fig. 4, the tubular column is a casing, the tubular column shaft shoulder is a casing collar, the diameter of the casing collar is greater than that of the casing, so the casing collar projects out of the casing on the circumference), and the guide block 12 is prevented from obstructing the putting in of the tubular column;

the right body 2 is provided with a locking loose piece 7 which can move up and down, more specifically, the right body 2 is provided with a plurality of through holes, the through holes comprise a first through hole and a second through hole which are coaxially communicated, the first through hole is smaller than the second through hole, the locking loose piece 7 is provided with a plurality of threaded holes corresponding to the through holes, a plurality of through holes are respectively provided with a guide stud 8, the upper section of the guide stud 8 is in threaded fastening connection with the threaded hole, the bottom end of the guide stud 8 is in threaded fastening connection with a fastening nut 81, the total diameter length of the bottom end of the guide stud 8 and the fastening nut 81 is larger than the inner diameter length of the first through hole and smaller than the inner diameter length of the second through hole, the right body 2 is also provided with a plurality of accommodating cavities, a compression spring 9 is respectively arranged in the plurality of accommodating cavities, as shown in figure 5, under the action of external force (for example, under the action of gravity, and the gravity is larger than the elastic force of the spring), the locking loose piece and the guide stud 8 move downwards together until the locking loose piece 7 is abutted against the right page 2 of the main body, as shown in fig. 6, after the external force is removed, the locking loose piece 7 and the guide stud 8 move upwards together under the pushing action of the compression spring 9 until the fastening nut 81 is clamped at the bottom of the first through hole, the continuous moving upwards is stopped, and the unlocking state between the locking loose piece 7 and the left page 1 of the main body is kept by the compression spring 9;

the end, which is not connected with the right body leaf 2, of the left body leaf 1 is provided with a groove 11, the end, which is butted with the left body leaf 1, of the locking loose piece 7 is correspondingly provided with a boss 71 matched with the groove 11, the locking loose piece 7 moves downwards when the left body leaf 1 and the right body leaf 2 are in a ring-closing state, the boss 71 is clamped in the groove 11, locking between the left body leaf 1 and the right body leaf 2 is realized, the locking loose piece 7 moves upwards, the boss 71 is separated from the groove 11, and the locking state between the left body leaf 1 and the right body leaf 2 is unlocked;

the left body leaf 1 is provided with a hydraulic cylinder 3, a connecting mechanism 4 and a latch 6 which are sequentially and rotatably arranged along the extending direction of the left body leaf 1, more specifically, the hydraulic cylinder 3, the connecting mechanism 4 and the latch 6 are rotatably arranged on the left body leaf 1 through a shaft pin, in addition, the driving end of the hydraulic cylinder 3 is rotatably connected with one end of the connecting structure 4 through the shaft pin, the other end of the connecting mechanism 4 is rotatably connected with one end of a connecting rod 5 through the shaft pin, the other end of the connecting rod 5 is rotatably connected with the latch 6 through the shaft pin, one end of the right body leaf 2 which is not connected with the left body leaf 1 is correspondingly provided with a latch groove which is matched with the latch 6, more specifically, the tail end of the latch 6 is provided with a clamping hook 61, a clamping block 21 is correspondingly arranged in the latch groove, after the left body leaf 1 and the right body leaf 2 are circularly combined, the hydraulic cylinder, the latch 6 is buckled into the latch groove, and more specifically, the clamping block 21 is hooked by the clamping hook 61, so that the left page 1 and the right page 2 of the main body are locked;

in addition, as shown in fig. 4, the auxiliary elevator further includes an elevator lining 10, and more specifically, the elevator lining 10 is the same as the arc-shaped arrangement of the left body leaf 1 and the locking loose piece 7, the elevator lining 10 is detachably installed on the inner sides of the left body leaf 1 and the locking loose piece 7, and different pipe columns are fastened by replacing the elevator lining 10 with different specifications.

According to the auxiliary elevator described in this embodiment, the following embodiments can be obtained:

taking a hoisting pipe column as an example, replacing an elevator lining 10 with a corresponding specification according to the specification of the pipe column, hoisting the auxiliary elevator and moving the auxiliary elevator to the side of the pipe column, opening a left body leaf 1 and a right body leaf 2, placing the pipe column into the center of the auxiliary elevator, encircling the left body leaf 1 and the right body leaf 2, starting a hydraulic cylinder 3 to work, driving a coupling mechanism 4 to rotate by the hydraulic cylinder 3, and pushing a latch 6 to rotate by virtue of the transmission action of a connecting rod 5 until a clamping hook 61 on the latch 6 hooks a clamping block 21 on the right body leaf 2, so as to realize first heavy locking safety;

the auxiliary elevator is lifted, the shoulder of the pipe column is clamped on the upper plane of the locking loose piece 7, the locking loose piece 7 moves downwards by means of the acting force (such as the dead weight of the pipe column) of the pipe column on the locking loose piece 7, the boss 71 on the locking loose piece 7 is clamped in the groove 11 of the left page 1 of the main body, the left page 1 and the right page 2 of the main body are further locked, and the second self-locking safety is realized;

after the pipe column is disassembled, the locking loose piece 7 automatically moves upwards under the elastic pushing action of the compression spring 9 to remove the second self-locking safety, when the elevator lining 10 needs to be disassembled, the hydraulic cylinder 3 reversely works to enable the latch 6 to reversely rotate, then the clamping hook 61 is driven to be separated from the clamping block 21, and the first locking safety is removed.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.