Wear-resistant guide rail for top drive

Abstract

The utility model relates to the technical field of top drive guide rails, and discloses a wear-resistant guide rail for a top drive, which comprises a first rail frame and a second rail frame, the side walls of the first rail frame and the second rail frame are respectively and fixedly connected with a first guide rail and a second guide rail, and the first guide rail and the second guide rail have the same structure. A movable block is slidably installed on the first guide rail, a guide rail trolley is fixedly installed on the side wall of the movable block, the ends, close to each other, of the first rail frame and the second rail frame are rotationally connected through a rotating mechanism, and locking mechanisms are further arranged at the ends, close to each other, of the first rail frame and the second rail frame. According to the folding guide rail, two adjacent guide rails can be mutually folded through the connecting side plates, the connecting blocks and the rotating shafts, the straightened guide rails can be automatically fixed through the locking mechanisms, and therefore the folding guide rail is more convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to top drive guide rail technical field, concretely is a kind of wear-resistant guide rail for top drive. BACKGROUND

[0002] With the development of oil and gas drilling technology, the demand for traditional drilling rig equipped with top drive is more and more urgent. As an indispensable part of top drive equipment, guide rail not only enables top drive to slide up and down along the guide rail, but also can withstand and transmit the counter torque of top drive driving drill pipe during rotary drilling, make-up and breakout.

[0003] According to the Chinese patent document with the announcement number CN214659974U, a kind of top drive guide rail folding mechanism is disclosed, it is related to petroleum machinery field. Specifically including upper guide rail, lower guide rail and connecting guide rail;Upper guide rail, connecting guide rail and the two sides of lower guide rail are equipped with guide rail. Upper guide rail, connecting guide rail and lower guide rail are all hinged by the pin shaft on connecting piece;Upper guide rail, connecting guide rail and lower guide rail are equipped with pull rope;The one end of pull rope is fixed on upper guide rail by fixed ring, and the other end of pull rope is equipped with pull ring;Connecting piece is equipped with slot;Pull rope is threaded in the slot on connecting piece. Compared with prior art, the beneficial effects of the utility model are: time-saving and labor-saving, high efficiency, low cost, while avoiding high-altitude operation and the risk brought by high-altitude operation.

[0004] The above device can ensure the normal use of the guide rail by pulling the pull rope to straighten the unfolded multiple guide rails, but relying only on the pull rope cannot guarantee the stability between the multiple guide rails after straightening, for example, when the pull rope is plastically deformed, a slight gap will appear between the adjacent two guide rails. Therefore, a kind of wear-resistant guide rail for top drive is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of wear-resistant guide rail for top drive to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of wear-resistant guide rail for top drive, including No. 1 rail frame and No. 2 rail frame, the side wall of No. 1 rail frame and No. 2 rail frame is respectively fixedly connected with No. 1 guide rail and No. 2 guide rail, No. 1 guide rail and No. 2 guide rail are the same structure, slidingly installed with movable block on No. 1 guide rail, guide rail car is fixedly installed on the side wall of movable block, the end of No. 1 rail frame and No. 2 rail frame mutually close is rotationally connected by rotating mechanism, the end of No. 1 rail frame and No. 2 rail frame mutually close is also provided with locking mechanism.

[0007] As a further preferred technical solution, the rotating mechanism is composed of a connecting block, connecting side plates and a rotating shaft, the bottom of the first rail frame is fixedly connected with the connecting side plates on both sides, the connecting side plates extend to one side of the first rail frame, the upper middle part of the second rail frame is fixedly connected with the connecting block, the connecting block extends to one side of the second rail frame, the connecting block and the connecting side plates are symmetrically distributed on both sides of the connecting block, the connecting block and the connecting side plates are provided with connecting holes at the extending ends, and the rotating shaft is rotatably installed in the connecting holes.

[0008] As a further preferred technical solution, the three connecting holes are aligned with each other.

[0009] As a further preferred technical solution, the rotating shaft is fixedly connected with the limiting baffle at both ends.

[0010] As a further preferred technical solution, the locking mechanism is composed of a limiting block, a sliding block and a spring, the upper end of the connecting block is provided with a sliding groove, the sliding block is slidably installed in the sliding groove, the spring is fixedly connected between the bottom of the sliding block and the inner cavity bottom of the sliding groove, the upper end of the sliding block is fixedly connected with the limiting block, and the bottom of the first rail frame is provided with the clamping grooves matched with the limiting blocks.

[0011] As a further preferred technical solution, the side of the limiting block close to the extending end of the connecting block is provided with an arc surface structure.

[0012] As a further preferred technical solution, the inner wall of the clamping groove is provided with the dismounting holes extending to the outer wall of the first rail frame.

[0013] The utility model provides a kind of wear-resistant guide rail for top drive, with the following beneficial effects:

[0014] The utility model discloses connecting side plate, connecting block and rotating shaft are set, two adjacent guide rails can be folded mutually, locking mechanism is set, and the guide rail after being straightened can be fixed automatically, so that the installation of the folding guide rail is more convenient, and more firm. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is the schematic diagram of part structure of the utility model;

[0017] Figure 3 It is the split schematic diagram of the utility model in Figure 2 ;

[0018] Figure 4 It is the split schematic diagram of the utility model in Figure 3Schematic view from another perspective

[0019] Figure 5 For the utility model Figure 4 The exploded schematic view is shown in the figure.

[0020] In the figure: 1, a rail frame; 2, a second rail frame; 3, a first guide rail; 4, a second guide rail; 5, a guide rail car; 6, a movable block; 7, a connecting block; 8, a connecting side plate; 9, a rotating shaft; 10, a limiting block; 11, a clamping groove; 12, a dismounting hole; 13, a sliding block; 14, a sliding groove; 15, a spring; 16, a connecting hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0022] The utility model provides technical scheme: as Figures 1 to 5 shown, in the embodiment, a kind of top drive is used wear-resistant guide rail, including one rail frame 1 and second rail frame 2, the side wall of one rail frame 1 and second rail frame 2 is respectively fixedly connected with first guide rail 3 and second guide rail 4, first guide rail 3 and second guide rail 4 are same structure, slidingly installed with movable block 6 on first guide rail 3, guide rail car 5 is fixedly installed on the side wall of movable block 6, one rail frame 1 and second rail frame 2 are rotationally connected by rotating mechanism in one end of mutual approach, one rail frame 1 and second rail frame 2 are also provided with locking mechanism in one end of mutual approach.

[0023] Wherein, rotating mechanism is composed of connecting block 7, connecting side plate 8 and rotating shaft 9, the bottom of one rail frame 1 two sides is respectively fixedly connected with connecting side plate 8, the end of two connecting side plates 8 is extended to the side of one rail frame 1, the upper end of second rail frame 2 middle is fixedly connected with connecting block 7, the end of connecting block 7 is extended to the side of second rail frame 2, two connecting side plates 8 are symmetrically distributed with the two sides of connecting block 7, the extension end of connecting block 7 and two connecting side plates 8 is all provided with connecting hole 16, three connecting holes 16 are mutually aligned, rotating shaft 9 is rotationally installed in connecting hole 16, the two ends of rotating shaft 9 are respectively fixedly connected with limiting baffle.

[0024] Wherein, locking mechanism is composed of limiting block 10, sliding block 13 and spring 15, the upper end of connecting block 7 is provided with sliding groove 14, sliding block 13 is slidably installed in sliding groove 14, spring 15 is fixedly connected between the bottom of sliding block 13 and the inner cavity bottom of sliding groove 14, the upper end of sliding block 13 is fixedly connected with limiting block 10, the bottom of one rail frame 1 is provided with the clamping groove 11 of mutual adaptation of limiting block 10.

[0025] Wherein, the side of limiting block 10 close to the extension end of connecting block 7 is set as arc surface structure.

[0026] Thus, when the first rail frame 1 and the second rail frame 2 are straightened, the arc surface of the limiting block 10 is compressed into the sliding groove 14 and the spring 15 is compressed when the arc surface of the limiting block 10 contacts the first rail frame 1, and the limiting block 10 is inserted into the clamping groove 11 under the extrusion of the spring 15 when the first rail frame 1 and the second rail frame 2 are completely straightened, so that the first rail frame 1 and the second rail frame 2 are fixed in the straightened state.

[0027] The inner wall of the clamping groove 11 is provided with a dismounting hole 12 extending to the outer wall of the first rail frame 1.

[0028] When the locking mechanism is dismounted, the limiting block 10 can be extruded by hand or a tool inserted into the dismounting hole 12 to push the limiting block 10 out of the clamping groove 11, so that the dismounting of the locking mechanism is completed.

[0029] The first rail frame 1 and the second rail frame 2 are made of quenched steel, and the quenched steel has good wear resistance.

[0030] The utility model provides a kind of wear-resistant guide rail for top drive, and specific working principle is as follows:

[0031] The connecting side plate 8, the connecting block 7 and the shaft 9 are arranged, so that the first rail frame 1 and the second rail frame 2 can be folded, the arc surface of the limiting block 10 is compressed into the sliding groove 14 and the spring 15 is compressed when the arc surface of the limiting block 10 contacts the first rail frame 1 after the first rail frame 1 and the second rail frame 2 are straightened, the limiting block 10 is inserted into the clamping groove 11 under the extrusion of the spring 15 when the first rail frame 1 and the second rail frame 2 are completely straightened, so that the first rail frame 1 and the second rail frame 2 are fixed in the straightened state, and when the locking mechanism is dismounted, the limiting block 10 can be extruded by hand or a tool inserted into the dismounting hole 12 to push the limiting block 10 out of the clamping groove 11, so that the dismounting of the locking mechanism is completed.

[0032] It should be noted that only two sections of the guide rail are described above, and the connection mode of other sections of the guide rail is the same as above, and meanwhile, each connection point of the guide rail is staggered and distributed on both sides of the guide rail.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant guide rail for top drive, comprising a first rail frame (1) and a second rail frame (2), characterized in that: A first guide rail (3) and a second guide rail (4) are fixedly connected to the side walls of the first rail frame (1) and the second rail frame (2), respectively. The first guide rail (3) and the second guide rail (4) have the same structure. A movable block (6) is slidably installed on the first guide rail (3). A guide rail carriage (5) is fixedly installed on the side wall of the movable block (6). The ends of the first rail frame (1) and the second rail frame (2) that are close to each other are rotatably connected by a rotating mechanism. A locking mechanism is also provided at the ends of the first rail frame (1) and the second rail frame (2) that are close to each other.

2. The wear-resistant guide rail for top drive according to claim 1, characterized in that: The rotating mechanism consists of a connecting block (7), connecting side plates (8), and a rotating shaft (9). The bottom sides of the first rail frame (1) are fixedly connected to the connecting side plates (8), and one end of each of the two connecting side plates (8) extends to one side of the first rail frame (1). The upper middle part of the second rail frame (2) is fixedly connected to the connecting block (7), and one end of the connecting block (7) extends to one side of the second rail frame (2). The two connecting side plates (8) are symmetrically distributed on both sides of the connecting block (7). The extended ends of the connecting block (7) and the two connecting side plates (8) are provided with connecting holes (16), and the rotating shaft (9) is rotatably installed in the connecting holes (16).

3. The wear-resistant guide rail for top drive according to claim 2, characterized in that: The three connecting holes (16) are aligned with each other.

4. A wear-resistant guide rail for a top drive according to claim 2, characterized in that: Limiting baffles are fixedly connected to both ends of the rotating shaft (9).

5. A wear-resistant guide rail for a top drive according to claim 2, characterized in that: The locking mechanism consists of a limiting block (10), a slider (13), and a spring (15). The upper end of the connecting block (7) is provided with a sliding groove (14). The slider (13) is slidably installed in the sliding groove (14). The bottom of the slider (13) and the bottom of the inner cavity of the sliding groove (14) are fixedly connected with a spring (15). The upper end of the slider (13) is fixedly connected with the limiting block (10). The bottom of the first rail frame (1) is provided with a slot (11) that is compatible with the limiting block (10).

6. A wear-resistant guide rail for a top drive according to claim 5, characterized in that: The side of the limiting block (10) near the extension end of the connecting block (7) is configured with an arc surface structure.

7. A wear-resistant guide rail for a top drive according to claim 5, characterized in that: The inner wall of the slot (11) is provided with a disassembly hole (12) extending to the outer wall of the first rail frame (1).

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