Wellhead cradle locking device

Abstract

The utility model discloses a wellhead cradle locking device, which belongs to the technical field of wellhead cradles and comprises a mine field, a vertical shaft is arranged on the mine field, a horizontal roadway is arranged in the mine field, and a roadway track is arranged at the bottom of an inner cavity of the horizontal roadway. And the positions, located on the two sides of the vertical shaft, of the bottom of the inner cavity of the horizontal roadway are each provided with a rotating base, a supporting rotating shaft is rotationally connected between the two rotating bases, and the outer sides of the supporting rotating shafts are fixedly sleeved with shaking table plates. According to the utility model, the rotating base, the supporting rotating shaft, the cradle plate, the slide way, the first hydraulic cylinder, the pushing seat and the pushing column are matched for use, the pushing seat and the pushing column are driven by the first hydraulic cylinder to move up and down, and the lifting and falling of the cradle plate are controlled by the sliding of the pushing column in the slide way; and the function of automatically lifting and falling the cradle plate is achieved, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead swing platforms, and specifically, to a locking device for a wellhead swing platform. Background Art

[0002] For shaft hoisting, a winch is required to hoist a cage through a steel wire rope, and mine cars are used to transport ores and materials. An activity platform for connecting the cage and the horizontal lane track needs to be installed at the wellhead, bottom, and middle sections to ensure the entry and exit of mine cars into and out of the cage. The connecting devices mainly include swing platforms, cage supports, and cage seats, among which the swing platform is the most commonly used. The wellhead swing platform is linked with the winch. When personnel get on and off the cage at the wellhead, after the cage reaches the wellhead, the signal worker at the wellhead first needs to lower the swing platform. After the personnel have finished getting on and off the cage, the signal worker at the wellhead then raises the swing platform. When the signal worker lowers the swing platform, the winch operator cannot start the winch, which can completely avoid the cage rising or falling when the personnel have not finished getting on or off the cage due to misoperation, thus causing personal injury accidents.

[0003] After retrieval, the utility model patent with the publication number CN213651570U discloses a control locking device for a new type of mine shaft hoisting swing platform and a winch. A magnetic block bracket is fixedly connected to the end of the swing platform main shaft of the control locking device for the new type of mine shaft hoisting swing platform and a winch. A magnetic block is fixedly connected to the end of the magnetic block bracket. Magnetic switches are fixedly arranged on the side walls of the track corresponding to the swing platform main shaft. When the swing platform is fully raised, the swing platform main shaft drives the magnetic block bracket to rotate, and the position of the magnetic block is opposite to the magnetic switch. The magnetic switch is connected to control the locking of the winch through a wire. The raising and lowering of the swing platform cause the corresponding magnetic switches to close and open, thereby precisely controlling the locking of the winch and improving the safety of the cage operation.

[0004] However, the above patent still has the following deficiencies: manual labor is required to raise and lower the swing platform, and the convenience and practicality are poor. Moreover, when fixing by inserting a fixed key pin into the corresponding pin holes on the swing platform support and the swing platform main shaft, the fixed key pin also needs to bear the weight of the swing platform, which is not convenient for ensuring the load-bearing capacity of the swing platform. For this reason, we propose a locking device for a wellhead swing platform. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a locking device for a wellhead swing platform.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A wellhead swing platform locking device includes a minefield. There is a vertical shaft set on the minefield. Inside the minefield, there is a horizontal roadway. At the bottom of the inner cavity of the horizontal roadway, there is a roadway track. On both sides of the vertical shaft at the bottom of the inner cavity of the horizontal roadway, there is a set of rotating bases respectively. Between the two sets of rotating bases, there is a support rotating shaft rotatably connected respectively. On the outer sides of the support rotating shafts, there are swing platform plates fixedly sleeved respectively. On the top surfaces of the two swing platform plates, there are swing platform tracks respectively. The positions of the swing platform tracks and the roadway tracks are aligned. On the side surface of the swing platform plate, there is a slideway. At the bottom of the inner cavity of the horizontal roadway and on both sides of the swing platform plate, there are first hydraulic cylinders fixedly installed respectively. The top ends of the first hydraulic cylinders are fixedly connected with push seats. Inside the cavity of the slideway, there is a push column sleeved. The end of the push column extends to the side part of the swing platform plate and is fixedly sleeved with the push seat. At the bottom of the inner cavity of the horizontal roadway, there is a reinforcement mechanism.

[0008] As a preferred scheme of the present utility model, the reinforcement mechanism includes a second hydraulic cylinder fixedly installed at the bottom of the inner cavity of the horizontal roadway. The top end of the second hydraulic cylinder is fixedly connected with a U-shaped rotating seat. Inside the U-shaped rotating seat, there is a rotating frame rotatably connected. The top end of the rotating frame is fixedly connected with a push plate. The top surface of the push plate is in contact with the bottom surface of the swing platform plate.

[0009] As a preferred scheme of the present utility model, a contact sensor is arranged on the inner wall of the horizontal roadway. The end of the support rotating shaft extends to the outside of the rotating base and is fixedly connected with a contact plate.

[0010] As a preferred scheme of the present utility model, there is a cage arranged in the inner cavity of the vertical shaft. The top surface of the cage is fixedly connected with a lifting steel wire rope.

[0011] As a preferred scheme of the present utility model, the outer side surface of the push column is in contact with the inner wall of the slideway.

[0012] As a preferred scheme of the present utility model, the bottom end of the swing platform plate is an arc surface. The bottom end of the swing platform plate is in contact with the bottom surface of the inner cavity of the horizontal roadway.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] (1) In the present utility model, through the combined use of the rotating base, the support rotating shaft, the swing platform plate, the slideway, the first hydraulic cylinder, the push seat and the push column, the first hydraulic cylinder is used to drive the push seat and the push column to move up and down. The sliding of the push column in the slideway is used to control the lifting and falling of the swing platform plate, realizing the function of automatically lifting and falling the swing platform plate, and having good practicability.

[0015] (2) In the present utility model, the cooperation of the first hydraulic cylinder, the pushing column and the pushing seat can effectively support the rocking table plate. In addition, the second hydraulic cylinder drives the pushing plate to contact the bottom surface of the rocking table plate, and the second hydraulic cylinder, the U-shaped rotating seat, the rotating frame and the pushing plate support the rocking table plate, ensuring the load-bearing capacity of the rocking table plate and improving the working quality of the wellhead rocking table locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic sectional view of the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of the rocking table plate of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the reinforcement mechanism of the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1, mine site; 2, vertical shaft; 3, horizontal roadway; 4, roadway track; 5, rotating base; 6, supporting rotating shaft; 7, rocking table plate; 8, rocking table track; 9, slideway; 10, first hydraulic cylinder; 11, pushing seat; 12, pushing column; 13, reinforcement mechanism; 14, second hydraulic cylinder; 15, U-shaped rotating seat; 16, rotating frame; 17, pushing plate; 18, cage; 19, lifting wire rope; 20, contact sensor; 21, contact plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment:

[0026] Please refer to Figures 1-4 , a wellhead swing platform locking device, including a mine 1, a vertical shaft 2 is provided on the mine 1, a horizontal roadway 3 is provided inside the mine 1, a roadway track 4 is provided at the bottom of the inner cavity of the horizontal roadway 3, and a set of rotating bases 5 are respectively provided on both sides of the vertical shaft 2 at the bottom of the inner cavity of the horizontal roadway 3. A support rotating shaft 6 is rotatably connected between the two sets of rotating bases 5. Swing platform plates 7 are respectively fixedly sleeved on the outer sides of the support rotating shafts 6. Swing platform tracks 8 are respectively provided on the top surfaces of the two swing platform plates 7. The positions of the swing platform tracks 8 and the roadway track 4 are aligned. A slideway 9 is opened on the side surface of the swing platform plate 7. First hydraulic cylinders 10 are respectively fixedly installed on both sides of the swing platform plate 7 at the bottom of the inner cavity of the horizontal roadway 3. The top ends of the first hydraulic cylinders 10 are fixedly connected with push seats 11. A push column 12 is sleeved in the inner cavity of the slideway 9. The end of the push column 12 extends to the side part of the swing platform plate 7 and is fixedly sleeved with the push seat 11. A reinforcement mechanism 13 is provided at the bottom of the inner cavity of the horizontal roadway 3.

[0027] Specifically, please refer to Figure 2 and Figure 4 , the reinforcement mechanism 13 includes a second hydraulic cylinder 14 fixedly installed at the bottom of the inner cavity of the horizontal roadway 3. The top end of the second hydraulic cylinder 14 is fixedly connected with a U-shaped rotating seat 15. A rotating frame 16 is rotatably connected inside the U-shaped rotating seat 15. The top end of the rotating frame 16 is fixedly connected with a push plate 17. The top surface of the push plate 17 is in contact with the bottom surface of the swing platform plate 7.

[0028] In this embodiment, the rotation between the U-shaped rotating seat 15 and the rotating frame 16 can ensure that the top surface of the push plate 17 can be in contact with the bottom surface of the swing platform plate 7 at different angles. The second hydraulic cylinder 14, the U-shaped rotating seat 15, the rotating frame 16 and the push plate 17 are used to support the bottom of the swing platform plate 7 to ensure the support strength of the swing platform plate 7. Both the second hydraulic cylinder 14 and the first hydraulic cylinder 10 are driven by a hydraulic station, oil pipes, solenoid valves, and motors provided on the mine 1. This is the prior art and is used to inject oil into the upper and lower ends of the second hydraulic cylinder 14 and the first hydraulic cylinder 10 in order to drive the second hydraulic cylinder 14 and the first hydraulic cylinder 10.

[0029] Specifically, please refer to Figure 1 and Figure 2 , a contact sensor 20 is provided on the inner wall of the horizontal roadway 3, and the end of the support rotating shaft 6 extends to the outside of the rotating base 5 and is fixedly connected with a contact plate 21.

[0030] In this embodiment, the side surface of the contact sensor 20 and the end of the contact plate 21 can be in contact. When the rocking table plate 7 is lifted, the support rotating shaft 6 rotates to drive the contact plate 21 to rotate. When the contact plate 21 and the contact sensor 20 are in contact, it indicates that the rocking table plate 7 has been lifted in place. At this time, the winch connected to the top of the lifting wire rope 19 is unlocked by using the external mine control room. When the contact plate 21 and the contact sensor 20 are not in contact, the winch connected to the top of the lifting wire rope 19 is locked by the external control room to ensure the safety of the device.

[0031] Specifically, please refer to Figure 2 , a cage 18 is provided in the inner cavity of the vertical shaft 2, and the top surface of the cage 18 is fixedly connected with a lifting wire rope 19.

[0032] In this embodiment, the top end of the lifting wire rope 19 is connected to the winch provided on the upper part of the mine 1, and the winch is used to wind and release the lifting wire rope 19, so as to drive the cage 18 to move up and down in the vertical shaft 2. In addition, the winches on the mine 1 all have locking and unlocking functions.

[0033] Specifically, please refer to Figure 2 , the outer side surface of the push column 12 fits with the inner wall of the slideway 9.

[0034] In this embodiment, the stability of the push column 12 in the slideway 9 is ensured, and at the same time, the strength of the push column 12 to support the rocking table plate 7 is ensured.

[0035] Specifically, please refer to Figure 1 and Figure 2 , the bottom end of the rocking table plate 7 is an arc surface, and the bottom end of the rocking table plate 7 is in contact with the bottom surface of the inner cavity of the horizontal roadway 3.

[0036] In this embodiment, the bottom surface of the inner cavity of the horizontal roadway 3 is used to support the rocking table plate 7 to ensure the load-bearing capacity of the rocking table plate 7.

[0037] Working principle: When in use, first use the winch to wind and release the hoisting wire rope 19, so as to adjust the height of the cage 18 in the vertical shaft 2. When the cage 18 moves to be flush with the inner cavity of the horizontal roadway 3, start the first hydraulic cylinder 10 to drive the push seat 11 and the push column 12 to move downward. The sliding of the push column 12 in the slideway 9 drives the swing table plate 7 to rotate around the support rotating shaft 6, so that the swing table track 8 on the top surface of the swing table plate 7 is aligned with the top of the cage 18. At this time, the contact sensor 20 and the contact plate 21 are no longer in contact. The external control room controls the winch connected to the top end of the hoisting wire rope 19 to be locked. Then start the second hydraulic cylinder 14 to drive the U-shaped rotating seat 15, the rotating frame 16 and the push plate 17 to move upward, so that the top surface of the push plate 17 is in contact with the bottom surface of the swing table plate 7, and use the second hydraulic cylinder 14, the U-shaped rotating seat 15, the rotating frame 16 and the push plate 17 to support the lower part of the swing table plate 7. Then, convey the materials on the cage 18 to the ground through the rail car from the swing table track 8. At the same time, the rail car on the roadway track 4 in the inner cavity of the horizontal roadway 3 can be moved to the cage 18 through the swing table track 8. Finally, when it is necessary to lift the cage 18 again, use the first hydraulic cylinder 10 to drive the push seat 11 and the push column 12 to move upward, and drive the swing table plate 7 to lift upward again through the sliding of the push column 12 in the slideway 9. When the support rotating shaft 6 drives the contact plate 21 to contact the contact sensor 20, the external control room controls the winch connected to the top end of the hoisting wire rope 19 to be unlocked, and the winch at the top of the mine 1 can drive the cage 18 to move up and down, that's all.

[0038] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitution or change, and should be covered by the protection scope of the present utility model.

Claims

1. A wellhead cradle locking device, comprising a mine (1), characterized in that: A vertical shaft (2) is arranged on the mine (1), a horizontal tunnel (3) is arranged inside the mine (1), a tunnel track (4) is arranged at the bottom of the inner cavity of the horizontal tunnel (3), a group of rotating bases (5) are arranged at the bottom of the inner cavity of the horizontal tunnel (3) and on both sides of the vertical shaft (2), and a supporting shaft (6) is rotatably connected between the two groups of rotating bases (5), and a rocking table plate (7) is fixedly sleeved on the outer side of the supporting shaft (6), and a rocking table track (8) is arranged on the top surface of the two rocking table plates (7), and the rocking table track ( 8) and the position of the laneway track (4), a slideway (9) is provided on the side of the rocking table (7), a first hydraulic cylinder (10) is fixedly installed at the bottom of the inner cavity of the horizontal laneway (3) and on both sides of the rocking table (7), a push seat (11) is fixedly connected to the top of the first hydraulic cylinder (10), a push column (12) is sleeved in the inner cavity of the slideway (9), an end of the push column (12) extends to the side of the rocking table (7) and is fixedly sleeved with the push seat (11), and a reinforcement mechanism (13) is provided at the bottom of the inner cavity of the horizontal laneway (3).

2. A wellhead cradle locking device according to claim 1, characterized in that: The reinforcement mechanism (13) comprises a second hydraulic cylinder (14) fixedly mounted on the bottom of the inner cavity of the horizontal tunnel (3); the top end of the second hydraulic cylinder (14) is fixedly connected to a U-shaped swivel seat (15); the inner side of the U-shaped swivel seat (15) is rotatably connected to a swivel frame (16); the top end of the swivel frame (16) is fixedly connected to a push plate (17); the top surface of the push plate (17) is in contact with the bottom surface of the rocking table plate (7).

3. A wellhead cradle locking device according to claim 1, characterized in that: The inner wall of the horizontal tunnel (3) is provided with a contact sensor (20), and the end of the supporting shaft (6) extends to the outside of the rotating base (5) and is fixedly connected with a contact plate (21).

4. A wellhead cradle locking device according to claim 1, characterized in that: The inner cavity of the vertical shaft (2) is provided with a cage (18), and the top surface of the cage (18) is fixedly connected with a lifting wire rope (19).

5. A wellhead cradle locking device according to claim 1, characterized in that: The outer side surface of the push column (12) is in contact with the inner wall of the slideway (9).

6. A wellhead cradle locking device according to claim 1, characterized in that: The bottom end of the rocking table plate (7) is an arc surface, and the bottom end of the rocking table plate (7) is in contact with the bottom surface of the inner cavity of the horizontal tunnel (3).

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