A top drive telescopic catwalk

Abstract

The utility model relates to petroleum exploitation equipment technical field, concretely relates to a top drive telescopic tackle, including guide rail and sliding mechanism, and sliding mechanism includes mounting bracket, sliding assembly, support plate, mounting plate, connecting rod, two scrape off frame, mounting rod, two wiping ring and lubricating component, when using, install top drive device on support plate, drive support plate along the guide rail length direction movement through sliding assembly, and then drive top drive device vertical direction movement, in the sliding process, scrape off frame and guide rail mutual contact, carry out scraping to the impurity that adheres on the guide rail, simultaneously, wiping ring moves along with scrape off frame, carry out the brush washing cleaning to the impurity that scraped down, avoid secondary adhesion, further, lubricate guide rail through lubricating component, solved the guide rail in the long -term use process, because environment and so on factor, the guide rail body is easy to adhere to the impurity, leads to the increase of friction, and then causes the problem of sliding jam.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, and in particular to a top-drive telescopic trolley. Background Technology

[0002] The top drive unit (hereinafter referred to as the top drive) is one of the important components of oil drilling rigs and has been widely used in both offshore and onshore drilling rigs. The top drive can directly rotate the drill pipe in the upper space of the derrick to complete various drilling operations such as drill pipe rotation drilling, drilling fluid circulation, connecting the stand, attaching and unattaching, and reaming. During operation, the top drive moves up and down along the guide rails mounted on the derrick via a pulley. The pulley restricts the movement of the top drive unit along the guide rails. Currently, the structure of the guide pulleys varies, but they all have problems such as easy interference between the top drive and the rod feeder, difficulty in adjusting the position between the guide pulley and the guide rail, and the large overall weight of the top drive, which places high demands on the strength, rigidity, and stability of the support.

[0003] The prior art CN207268157U discloses a guide trolley device for a drilling rig top drive system, including a guide rail and guide wheels. The guide wheels are mounted on the guide rail, and a transverse support perpendicular to the guide rail is installed between the guide wheels on the guide rail. The support is connected to one end of a swing arm, and the other end of the swing arm is connected to a housing. A middle connecting rod is provided in the middle of the support, and the other end of the middle connecting rod is connected to the housing. The bases of two hydraulic cylinders are respectively installed on both sides of the support, and the piston rods of the hydraulic cylinders are connected to the middle of the swing arm. Driven by hydraulics, the device extends in the working state and retracts in the non-working state to avoid interference with the rod feeder. The gap between the guide pulleys arranged on the three surfaces and the guide rail can be adjusted to prevent jamming and slippage, achieving the optimal position for fixing the trolley. A shorter swing arm is used to reduce the torque and the effect on the support, thereby reducing the requirements for the strength, rigidity, and stability of the support.

[0004] However, in the above structure, during long-term use, due to environmental factors, impurities are easily attached to the guide rail body, which leads to increased friction and causes sliding jamming. Utility Model Content

[0005] The purpose of this utility model is to provide a top-drive telescopic trolley that solves the problem that, during long-term use, impurities easily adhere to the guide rail body due to environmental factors, leading to increased friction and subsequent sliding jamming.

[0006] To achieve the above objectives, this utility model provides a top-drive telescopic trolley, including a guide rail and a sliding mechanism. The sliding mechanism includes a mounting frame, a sliding assembly, a support plate, a mounting plate, a connecting rod, two scraping frames, a mounting rod, two wiping rings, and a lubrication assembly. The mounting frame is disposed on one side of the guide rail. The support plate is fixedly connected to the mounting frame and located on the outer wall of the mounting frame. The sliding assembly is disposed between the support plate and the guide rail. The mounting plate is fixedly connected to the support plate and located on the outer wall of the support plate. The connecting rod is detachably connected to the mounting plate and located on the outer wall of the mounting plate. The two scraping frames are respectively sleeved on the outer wall of the guide rail, and the two scraping frames are respectively fixedly connected to both ends of the connecting rod. The mounting rod is fixedly connected to the mounting plate and located on the outer wall of the mounting plate. The two wiping rings are respectively installed on both ends of the mounting rod, and the wiping rings are in contact with the guide rail. The lubrication assembly is disposed on the outer wall of the mounting plate.

[0007] The sliding assembly includes a pulley and a side wheel. The pulley is fixedly connected to the mounting bracket and located on the outer side wall of the mounting bracket, and the pulley is in contact with the guide rail. The side wheel is fixedly connected to the support plate and located on the outer side wall of the support plate, and the side wheel is in contact with the guide rail.

[0008] The lubrication assembly includes an oil box, two wiping cotton pads, and an oil guide tube. The oil box is fixedly connected to the mounting plate and is located on the outer side wall of the mounting plate. The two wiping cotton pads are respectively sleeved on the outer side walls of the two guide rails. The oil guide tube is fixedly connected between the oil box and the two wiping cotton pads, and a control valve is provided on the oil guide tube.

[0009] The top-drive telescopic trolley also includes two limiting mechanisms, which are respectively disposed on the outer side wall of the support plate.

[0010] The limiting mechanism includes a mounting block and a limiting sleeve. The mounting block is fixedly connected to the support plate and is located on the outer side wall of the support plate. The limiting sleeve is fixedly connected to the mounting block and is located at the end of the mounting block away from the support plate. The limiting sleeve is sleeved on the outer side wall of the guide rail.

[0011] This utility model discloses a top-drive telescopic trolley. In use, the top drive device is mounted on the support plate, allowing the sliding assembly to contact the guide rail. The sliding assembly drives the support plate to move along the length of the guide rail, thereby driving the top drive device to move vertically. During sliding, the scraping frame contacts the guide rail, scraping away impurities adhering to it. Simultaneously, the wiping ring moves with the scraping frame, brushing and cleaning the scraped impurities to prevent secondary adhesion. Furthermore, the lubrication assembly lubricates the guide rail, further reducing friction between the sliding assembly and the guide rail, ensuring smooth sliding. This solves the problem that during long-term use, impurities easily adhere to the guide rail body due to environmental factors, leading to increased friction and subsequent sliding jamming. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the guide rail and pulley structure of the first embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0016] 101-Guide rail, 102-Mounting bracket, 103-Support plate, 104-Mounting plate, 105-Connecting rod, 106-Scraping frame, 107-Mounting rod, 108-Wiping ring, 109-Pulley, 110-Side wheel, 111-Oil box, 112-Wiping cotton, 113-Oil guide pipe, 114-Control valve, 201-Mounting block, 202-Limit sleeve. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] First Embodiment

[0019] Please see Figures 1-2 , Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model. Figure 2 This is a schematic diagram of the guide rail and pulley structure of the first embodiment of this utility model.

[0020] This utility model provides a top-drive telescopic trolley, including a guide rail 101 and a sliding mechanism. The sliding mechanism includes a mounting frame 102, a sliding component, a support plate 103, a mounting plate 104, a connecting rod 105, two scraping frames 106, a mounting rod 107, two wiping rings 108, and a lubrication component. The sliding component includes a pulley 109 and a side wheel 110. The lubrication component includes an oil box 111, two wiping cottons 112, and an oil guide pipe 113. The above structure solves the problem that during long-term use, impurities easily adhere to the guide rail 101 body due to environmental factors, leading to increased friction and subsequent sliding jamming.

[0021] In a specific implementation, the guide rail 101 is used for guidance during the sliding process.

[0022] The mounting bracket 102 is disposed on one side of the guide rail 101. The support plate 103 is fixedly connected to the mounting bracket 102 and located on the outer side wall of the mounting bracket 102. The sliding assembly is disposed between the support plate 103 and the guide rail 101. The mounting plate 104 is fixedly connected to the support plate and located on the outer side wall of the support plate 103. The connecting rod 105 is detachably connected to the mounting plate 104 and located on the outer side wall of the mounting plate 104. Two scraping frames 106 are respectively sleeved on the outer side wall of the guide rail 101, and the two scraping frames 106 are respectively fixedly connected to both ends of the connecting rod 105. The mounting rod 107 is fixedly connected to the mounting plate 104 and located on the outer side wall of the mounting plate 104. Two wiping rings 108 are respectively installed on both ends of the mounting rod 107, and the wiping rings 108 are in contact with the guide rail 101. The lubrication assembly is disposed on... During use, the top drive device is mounted on the support plate 103 on the outer wall of the mounting plate 104, so that the sliding component and the guide rail 101 are in contact. The sliding component drives the support plate 103 to move along the length of the guide rail 101, thereby driving the top drive device to move vertically. During the sliding process, the scraping frame 106 contacts the guide rail 101 to scrape off the impurities attached to the guide rail 101. At the same time, the wiping ring 108 moves with the scraping frame 106 to brush and clean the scraped impurities to prevent secondary adhesion. Furthermore, the lubrication component lubricates the guide rail 101 to further reduce the friction between the sliding component and the guide rail 101, ensuring smooth sliding. This solves the problem that during long-term use, impurities easily adhere to the guide rail 101 body due to environmental factors, leading to increased friction and subsequent sliding jamming.

[0023] The pulley 109 is fixedly connected to the mounting bracket 102 and located on the outer side wall of the mounting bracket 102, and the pulley 109 is in contact with the guide rail 101. The side wheel 110 is fixedly connected to the support plate 103 and located on the outer side wall of the support plate 103, and the side wheel 110 is in contact with the guide rail 101. The pulley 109 and the side wheel 110 are used for sliding.

[0024] The oil box 111 is fixedly connected to the mounting plate 104 and located on the outer wall of the mounting plate 104. The two wiping cottons 112 are respectively sleeved on the outer walls of the two guide rails 101. The oil guide pipe 113 is fixedly connected between the oil box 111 and the two wiping cottons 112, and a control valve 114 is provided on the oil guide pipe 113. In use, the control valve 114 can be controlled by the controller to open and close. When the control valve 114 is open, the lubricating oil in the oil box 111 is delivered to the two wiping cottons 112 through the oil guide pipe 113. During the sliding process of the pulley 109 and the side wheel 110, the wiping cottons 112 wipe and lubricate the guide rail 101, thereby reducing the occurrence of sliding jamming problems.

[0025] Second Embodiment

[0026] Please see Figure 3 , Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0027] Based on the first embodiment, the top-drive telescopic trolley of this utility model also includes two limiting mechanisms, the limiting mechanisms including mounting block 201 and limiting sleeve 202.

[0028] In a specific implementation, the two limiting mechanisms are respectively disposed on the outer side wall of the support plate 103. The limiting mechanisms are used to limit the movement and prevent the sliding process from deviating from the track and causing safety hazards.

[0029] The mounting block 201 is fixedly connected to the support plate 103 and is located on the outer side wall of the support plate 103. The limiting sleeve 202 is fixedly connected to the mounting block 201 and is located at the end of the mounting block 201 away from the support plate. The limiting sleeve 202 is sleeved on the outer side wall of the guide rail 101. The mounting block 201 is used to connect the limiting sleeve 202 and the support plate 103. When sliding, the support plate 103 can move along the length direction of the guide rail 101 through the pulley 109 and the side wheel 110, thereby driving the top drive device to move. At the same time, the limiting sleeve 202 moves along the guide rail 101, and the limiting sleeve 202 restricts the displacement direction of the trolley to prevent derailment during sliding and avoid safety hazards.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A top-drive telescopic trolley, comprising a guide rail, characterized in that, It also includes a sliding mechanism, which comprises a mounting frame, a sliding assembly, a support plate, a mounting plate, a connecting rod, two scraping frames, a mounting rod, two wiping rings, and a lubrication assembly. The mounting frame is disposed on one side of the guide rail. The support plate is fixedly connected to the mounting frame and located on the outer wall of the mounting frame. The sliding assembly is disposed between the support plate and the guide rail. The mounting plate is fixedly connected to the support plate and located on the outer wall of the support plate. The connecting rod is detachably connected to the mounting plate and located on the outer wall of the mounting plate. The two scraping frames are respectively sleeved on the outer wall of the guide rail, and the two scraping frames are respectively fixedly connected to both ends of the connecting rod. The mounting rod is fixedly connected to the mounting plate and located on the outer wall of the mounting plate. The two wiping rings are respectively installed on both ends of the mounting rod, and the wiping rings are in contact with the guide rail. The lubrication assembly is disposed on the outer wall of the mounting plate.

2. The top-drive telescopic trolley as described in claim 1, characterized in that, The sliding assembly includes a pulley and a side wheel. The pulley is fixedly connected to the mounting bracket and located on the outer side wall of the mounting bracket, and the pulley is in contact with the guide rail. The side wheel is fixedly connected to the support plate and located on the outer side wall of the support plate, and the side wheel is in contact with the guide rail.

3. The top-drive telescopic trolley as described in claim 1, characterized in that, The lubrication assembly includes an oil box, two wiping cotton pads, and an oil guide tube. The oil box is fixedly connected to the mounting plate and is located on the outer side wall of the mounting plate. The two wiping cotton pads are respectively sleeved on the outer side walls of the two guide rails. The oil guide tube is fixedly connected between the oil box and the two wiping cotton pads, and a control valve is provided on the oil guide tube.

4. The top-drive telescopic trolley as described in claim 1, characterized in that, The top-drive telescopic trolley also includes two limiting mechanisms, which are respectively disposed on the outer side wall of the support plate.

5. A top-drive telescopic trolley as described in claim 4, characterized in that, The limiting mechanism includes a mounting block and a limiting sleeve. The mounting block is fixedly connected to the support plate and is located on the outer side wall of the support plate. The limiting sleeve is fixedly connected to the mounting block and is located at the end of the mounting block away from the support plate. The limiting sleeve is fitted onto the outer side wall of the guide rail.

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