Special pulley for top drive device

Abstract

A tackle special for a top drive device comprises a vertical rail A and a vertical rail B. The vertical rail A and the vertical rail B are connected with each other, and relates to the field of oil exploration, a sliding device is arranged on the vertical rail A, the vertical rail A and the vertical rail B are in sliding connection, the sliding device and the top drive device are connected, the sliding device and the top drive device are fixedly connected, and the sliding device comprises a vertical frame and a transverse frame. The left end and the right end of the transverse frame are each connected with a set of vertical frames, the vertical frames are perpendicular to the transverse frame, the vertical frames are connected with the vertical rails B in a sliding mode, meanwhile, the vertical frames are further connected with the top drive device in a fixed mode, and the transverse frame is connected with the two sets of vertical frames to form a buckled state. The top drive device can be perfectly buckled to the vertical rail A or the vertical rail B through the locking device, meanwhile, the vertical rail A or the vertical rail B is locked through the guiding device, the vertical guiding function of the top drive device can be achieved, the locking function can be achieved, the top drive device is prevented from falling off, the service life of the top drive device is longer, and meanwhile use is safer.

Description

Technical Field:

[0001] The utility model relates to oil extraction equipment and facilities, and particularly relates to a special pulley for a top drive device. Background Art:

[0002] The top drive device (Top Drive Drilling System, TDS), or simply referred to as the top drive, is one of the core equipment of modern high-efficiency drilling technology. Since the first top drive system was developed by Varco Company in the United States in 1981, the top drive technology has experienced a process of rapid development and wide application. The top drive device can directly rotate the drill pipe at the upper part of the derrick and complete various drilling operations, such as rotary drilling, circulating drilling fluid, connecting stands, making and breaking pipe connections, and backreaming. The introduction of this equipment has greatly improved the efficiency and safety of drilling operations.

[0003] During the up and down movement of the top drive device, it moves up and down through a pulley. Although the existing pulley can drive the top drive device to perform basic up and down movements, the existing pulley has the following disadvantages: 1. Due to the excessive weight of the top drive device, it is very easy for the top drive device to separate from the track during the up and down movement, resulting in damage to the entire device.

[0004] 2. The pulley often has an unsmooth sliding situation during the sliding process, resulting in the top drive device being unable to move up and down smoothly. This not only reduces the work efficiency but also causes wear to the top drive device during long-term use, resulting in unnecessary waste of resources.

[0005] In summary, in order to solve the above technical problems, a new technical solution is specifically proposed. Content of the Utility Model:

[0006] The purpose of the utility model is to overcome the above-mentioned deficiencies existing in the prior art and provide a special pulley for a top drive device.

[0007] The technical solution adopted by the utility model is as follows: A special pulley for a top drive device includes vertical rail A and vertical rail B. Vertical rail A and vertical rail B are connected to each other. A sliding device is provided on vertical rail A and they are slidably connected. The sliding device is fixedly connected to the top drive device. The sliding device includes a vertical frame and a horizontal frame. The left and right ends of the horizontal frame are respectively connected to a group of vertical frames, and the vertical frame and the horizontal frame are perpendicular to each other. The vertical frame is slidably connected to vertical rail B and is also fixedly connected to the top drive device.

[0008] As a preferred technical solution, the vertical frame includes a rolling device, a rail body, a guiding device and a connecting plate. The rolling device and the guiding device are provided on the rail body. The rolling device is connected to the vertical rail B and the connection between them is a sliding connection. The guiding device is connected to the vertical rail B and the connection between them is a sliding connection. The connecting plate is provided on the rail body, and the connecting plate is fixedly connected to the top drive device.

[0009] As a preferred technical solution, the rolling device includes a base, a pedestal, a wedge block, a positioning shaft and a rolling wheel. The base is fixed on the rail body and the two are connected by bolts. A pedestal is fixed on the base. A rolling wheel is provided inside the pedestal and the two are connected by a positioning shaft. The positioning shaft and the rolling wheel are connected by a bearing. The connection mode between the positioning shaft and the pedestal is a fixed connection. A wedge block is provided between the pedestal and the base.

[0010] As a preferred technical solution, the number of the rolling devices is not less than one group, the number of the roller devices is an even number, and every two groups of rolling devices are symmetrically placed.

[0011] As a preferred technical solution, the guiding device includes a bracket, a positioning wheel A, a roller, a positioning wheel B, a positioning wheel C and a positioning wheel D. The bracket is connected to the rail body by a connecting shaft and the connection mode between the connecting shaft and the rail body is a fixed connection. A roller is provided on the connecting shaft and the two are connected by a bearing. The bracket is provided with the positioning wheel A, the positioning wheel B, the positioning wheel C and the positioning wheel D, and each positioning wheel is connected to the bracket by a shaft on the bracket.

[0012] As a preferred technical solution, the guiding device is connected to the vertical rail A or the vertical rail B and the connection between them is a sliding connection. The guiding device is inserted into the vertical rail A or the vertical rail B.

[0013] As a preferred technical solution, the number of the guiding devices is not less than one group, the number of the guiding devices is an even number, and every two groups of guiding devices are symmetrically placed.

[0014] The beneficial effects of the present utility model are as follows: During the use of this device, first connect the sliding device to the top drive device, and then clamp the sliding device on the vertical rail A or the vertical rail B. At this time, the top drive device can move up and down on the vertical rail A and the vertical rail B under the action of the sliding device. This device has the following advantages: 1. Through the connection between the cross frame and the two vertical frames, a buckling state is formed, so that it can be perfectly buckled to the vertical rail A or the vertical rail B. At the same time, the vertical rail A or the vertical rail B is locked by the guiding device, which can not only realize the up and down guiding function of the top drive device, but also realize the locking function, avoid the top drive device from falling, make the service life of the device longer, and make the use safer.

[0015] 2. A rolling device is further provided on the sliding device. The rolling device is slidably connected to the vertical rail A or the vertical rail B. The rollers on the rolling device are in contact with the vertical rail, and they will support each other during the sliding process, play an auxiliary role during the up and down movement of the top drive device, help the up and down movement of the top drive device, and avoid damage to the top drive device caused by hard contact between the top drive device and the vertical rail. Description of the Drawings:

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a front view of the present utility model.

[0018] Figure 3 It is a schematic structural diagram of the rolling device of the present utility model.

[0019] Figure 4 It is a schematic structural diagram of the guiding device of the present utility model.

[0020] Figure 5 It is a schematic installation structure diagram of the top drive device of the present utility model. Detailed Description of the Invention:

[0021] The drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the drawings are omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] Referring to the drawings, a special pulley for a top drive device includes a vertical rail A5 and a vertical rail B7. The vertical rail A5 and the vertical rail B7 are connected to each other. A sliding device 6 is provided on the vertical rail A5 and they are slidably connected. The sliding device 6 is connected to the top drive device 4 and they are fixedly connected. The sliding device 6 includes a vertical frame 1 and a horizontal frame 2. The left and right ends of the horizontal frame 2 are respectively connected to a group of vertical frames 1, and the vertical frame 1 and the horizontal frame 2 are perpendicular to each other. The vertical frame 1 is connected to the vertical rail B7 and they are slidably connected. At the same time, the vertical frame 1 is also connected to the top drive device 4 and they are fixedly connected.

[0023] As a preferred technical solution, the vertical frame 1 includes a rolling device 101, a rail body 102, a guiding device 103 and a connecting plate 104. The rolling device 101 and the guiding device 103 are provided on the rail body 102. The rolling device 101 is connected to the vertical rail B7 and they are slidably connected. The guiding device 103 is connected to the vertical rail B7 and they are slidably connected. The connecting plate 104 is provided on the rail body 102, and the connecting plate 104 is connected to the top drive device 4 and they are fixedly connected.

[0024] As a preferred technical solution, the rolling device 101 includes a base 201, a pedestal 202, a wedge 203, a positioning shaft 204 and a rolling wheel 205. The base 201 is fixed on the rail body 102 and the two are connected by bolts. The pedestal 202 is fixed on the base 201. The rolling wheel 205 is arranged inside the pedestal 202 and the two are connected by the positioning shaft 204. The positioning shaft 204 and the rolling wheel 205 are connected by a bearing. The connection mode of the positioning shaft 204 and the pedestal 202 is a fixed connection. A wedge 203 is arranged between the pedestal 202 and the base 201. The wedge 203 plays a strengthening role between the base 201 and the pedestal 202, can stabilize the pedestal 202, and prevent the rolling wheel 205 from collapsing during the movement with the vertical rail A or the vertical rail B.

[0025] As a preferred technical solution, the number of the rolling devices 101 is not less than one group, the number of the roller devices 101 is an even number, and every two groups of rolling devices 101 are symmetrically arranged.

[0026] As a preferred technical solution, the guiding device 103 includes a bracket 301, a positioning wheel A 302, a roller 303, a positioning wheel B 304, a positioning wheel C 305 and a positioning wheel D 306. The bracket 301 is connected to the rail body 102 by a connecting shaft 307 and the connection mode of the connecting shaft 307 and the rail body 102 is a fixed connection. The roller 303 is arranged on the connecting shaft 307 and the two are connected by a bearing. The positioning wheel A 302, the positioning wheel B 304, the positioning wheel C 305 and the positioning wheel D 306 are arranged on the bracket 301 and each positioning wheel is connected to the bracket 301 by a shaft on the bracket 301.

[0027] As a preferred technical solution, the guiding device 103 is connected to the vertical rail A 5 or the vertical rail B 7 and the connection mode between the two is a sliding connection. The guiding device 103 is inserted into the vertical rail A 5 or the vertical rail B 7.

[0028] As a preferred technical solution, the number of the guiding devices 103 is not less than one group, the number of the guiding devices 103 is an even number, and every two groups of guiding devices 103 are symmetrically arranged.

[0029] The specific working principle of this device is as follows: During the use of this device, first connect the sliding device 6 with the top drive device 4, and then clamp the sliding device 6 on the vertical rail A5 or the vertical rail B7. At this time, the top drive device 4 can move up and down on the vertical rail A6 and the vertical rail B7 under the action of the sliding device 6. Through the connection between the cross frame 2 and the two groups of vertical frames 1, it forms a buckled state, enabling it to perfectly buckle onto the vertical rail A5 or the vertical rail B7. At the same time, lock the vertical rail A5 or the vertical rail B7 through the guiding device 103. This can not only achieve the up and down guiding effect of the top drive device 4, but also achieve the locking effect, avoiding the top drive device 4 from falling, making the service life of the device longer and the use safer. There is also a rolling device 101 on the sliding device 6. The rolling device 101 is slidably connected to the vertical rail A5 or the vertical rail B7. The roller 303 on the rolling device 101 contacts the vertical rail, and they will support each other during the sliding process, playing an auxiliary role during the up and down movement of the top drive device 4, which can help the up and down movement of the top drive device 4 and avoid damage to the top drive device caused by the hard contact between the top drive device 4 and the vertical rail.

[0030] In the figure, the description of the positional relationship is only for illustrative purposes and should not be construed as a limitation of this patent; Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A special pulley for a top drive device, comprising a vertical rail A and a vertical rail B, wherein the vertical rail A and the vertical rail B are connected to each other, and characterized in that: A sliding device is provided on the vertical rail A and the two are slidably connected. The sliding device is connected to the top drive device and the two are fixedly connected. The sliding device includes a vertical frame and a horizontal frame. The left and right ends of the horizontal frame are respectively connected to a group of vertical frames and the vertical frames and the horizontal frames are perpendicular to each other. The vertical frame is connected to the vertical rail B and the two are slidably connected. At the same time, the vertical frame is also connected to the top drive device and the two are fixedly connected.

2. A top drive pulley according to claim 1, characterized in that: The vertical frame includes a rolling device, a rail body, a guiding device and a connecting plate. The rail body is provided with a rolling device and a guiding device. The rolling device is connected to the vertical rail B and the two are slidably connected. The guiding device is connected to the vertical rail B and the two are slidably connected. The rail body is provided with a connecting plate, which is connected to the top drive device and the two are fixedly connected.

3. A special pulley for a top drive device according to claim 2, characterized in that: The rolling device includes a base, a pedestal, a wedge block, a positioning shaft and a rolling wheel. The base is fixed on the rail body and the two are connected by bolts. The base is fixed on the base. A rolling wheel is arranged inside the base and the two are connected by a positioning shaft. The positioning shaft and the rolling wheel are connected by a bearing. The connection mode of the positioning shaft and the base is a fixed connection. A wedge block is arranged between the base and the base.

4. A top drive pulley according to claim 2, characterized in that: The number of the rolling devices is not less than one group, the number of the roller devices is an even number, and every two groups of rolling devices are symmetrically placed.

5. A special pulley for a top drive device according to claim 2, characterized in that: The guide device includes a bracket, a positioning wheel A, a roller, a positioning wheel B, a positioning wheel C and a positioning wheel D. The bracket is connected to the rail body through a connecting shaft, and the connection between the connecting shaft and the rail body is a fixed connection. A roller is provided on the connecting shaft and the two are connected through a bearing. The bracket is provided with a positioning wheel A, a positioning wheel B, a positioning wheel C and a positioning wheel D, and each positioning wheel is connected to the bracket through an axis.

6. A special pulley for a top drive device according to claim 2, characterized in that: The guide device is connected to the vertical rail A or the vertical rail B in a sliding connection, and the guide device is inserted into the vertical rail A or the vertical rail B.

7. A special pulley for a top drive device according to claim 2, characterized in that: The number of the guide devices is not less than one group, the number of the guide devices is an even number, and every two groups of guide devices are symmetrically placed.

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