Derrick for hydraulic workover rig

Abstract

The utility model discloses a derrick for a hydraulic workover rig, and belongs to the technical field of derricks, the derrick for the hydraulic workover rig comprises a well rig platform, the well rig platform comprises a table top, a balance seat is arranged at the bottom of the table top, the balance seat comprises a hydraulic cylinder, a limiting ball head and a plurality of mounting racks, and the mounting racks are mounted at the bottom of the table top at equal intervals. The limiting ball heads are rotationally mounted on the mounting frame in a limiting manner, and the hydraulic cylinders are connected with the limiting ball heads in a limiting manner; the frame body comprises a first lifting frame and a second lifting frame, the first lifting frame is in transmission connection with the balance seat, the other side of the first lifting frame is in limiting sliding connection with the second lifting frame, and the first lifting frame and the second lifting frame are parallel and stacked, so that the initial height of the table top is reduced, the table top is more stable, and the low position of the table top is lifted; and meanwhile, the three limiting ball heads are matched with one another to enable the table top to be horizontal, adjustment can be conveniently conducted when the table top is not horizontal, and the table top is kept in a horizontal state.

Description

Technical Field

[0001] The utility model relates to the field of derricks, and in particular to a derrick for a hydraulic workover machine. Background Art

[0002] A workover rig or well dredging rig is the most basic and main power source for well repair and underground operations. A derrick is needed to support the workover rig, and the derrick is used to install and support the workover rig.

[0003] In the prior art, there is a fully hydraulic derrick for well repairing rigs with application number CN202321090750.3. In the above scheme, the double-group hydraulic support is supported by an adjustable base placed on the ground, but in reality, the position of the wellhead will be uneven. Because the height of the adjustable base is low, it is easy to place it flat. However, after the double-group hydraulic support is installed on the adjustable base, the height of the double-group hydraulic support is high, which will cause the rig platform to tilt. The tilt of the rig platform is not convenient for construction, and it is not convenient to reduce the inclination of the rig platform and keep the double-group hydraulic support as stable as possible. How to invent a derrick for a hydraulic well repairing rig to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a derrick for a hydraulic well repairing rig, aiming to improve the problem that the position of the wellhead is uneven and the bracket will tilt, and the bracket is easily unstable and the rig platform is tilted.

[0005] The utility model is implemented as follows: a derrick for a hydraulic workover rig, comprising

[0006] A well machine platform, the well machine platform comprises a table top, a balancing seat is arranged at the bottom of the table top, the balancing seat comprises a hydraulic cylinder, a limiting ball head and a mounting frame, a plurality of the mounting frames are installed at equal intervals at the bottom of the table top, the limiting ball heads are respectively limitedly rotatably mounted on the mounting frames, and the hydraulic cylinders are respectively connected to the limiting ball heads in a limiting manner;

[0007] The frame body includes a first lifting frame and a second lifting frame, the first lifting frame is transmission-connected to the balance seat, and the other side of the first lifting frame is limitedly and slidably connected to the second lifting frame.

[0008] In a preferred technical solution of the utility model, the balancing seat includes a support plate, a transverse slide rail and a longitudinal slide rail, three hydraulic cylinders are equally installed on the support plate, the output end of the hydraulic cylinder is fixedly connected with a lower limit block, and limit extension plates are arranged below the four sides of the mounting frame, the transverse slide rail is rotationally connected with the two transverse limit extension plates of the mounting frame, the longitudinal slide rail is rotationally connected with the two longitudinal limit extension plates of the mounting frame, the top of the limit ball head is slidingly connected with an upper limit block, the upper limit block is fixedly installed in the middle of the mounting frame, and the lower limit block passes through the transverse slide rail and the longitudinal slide rail and is located at the bottom of the limit ball head.

[0009] In a preferred technical solution of the present invention, the transverse slide rail and the longitudinal slide rail are both arc-shaped, and the longitudinal slide rail is located inside the transverse slide rail. The middle of the transverse slide rail and the longitudinal slide rail is provided with a strip-shaped limiting through hole corresponding to the lower limit block.

[0010] In a preferred technical solution of the utility model, the limiting ball head is provided with horizontal and vertically staggered limiting sliding grooves.

[0011] In a preferred technical solution of the present utility model, the upper limit block is arranged corresponding to the transverse slide groove at the top of the limit ball head, and the lower limit block is arranged corresponding to the longitudinal slide groove at the bottom of the limit ball head.

[0012] In a preferred technical solution of the utility model, the upper limit block and the lower limit block have a surface in contact with the limit ball head that is arc-shaped.

[0013] In a preferred technical solution of the present utility model, the first lifting frame includes a Z-shaped plate and a connecting plate, a group of connecting rods are fixedly connected to the end of the connecting plate, a group of connecting rods are fixedly connected to the support plate, a group of first hydraulic push rods are fixedly connected to the middle of the connecting plate, and the other end of the group of first hydraulic push rods is fixedly connected to one side of the bottom of the Z-shaped plate.

[0014] In a preferred technical solution of the present invention, the outer circle of the support plate is equally divided into three extension plates, a group of connecting rods are respectively fixedly connected to the three extension plates of the support plate, each group of connecting rods is provided with two, and each group of the first hydraulic push rods is two, and the two first hydraulic push rods cooperate with the connecting plate and the Z-shaped plate to be correspondingly connected to the three groups of connecting rods.

[0015] In a preferred technical solution of the present invention, the second lifting frame is correspondingly connected to the first lifting frame, and the second lifting frame includes an L-shaped support plate and a second hydraulic push rod, the second hydraulic push rod is fixedly installed on the outer bottom of the L-shaped support plate, the top of the second hydraulic push rod is fixedly connected to the outer side of the top of the Z-shaped plate, and the back of the Z-shaped plate is limitedly slidably connected to the L-shaped support plate.

[0016] In a preferred technical solution of the present invention, both sides of the L-shaped support plate close to the Z-shaped plate are fixedly connected to limit slide bars, and both sides of the Z-shaped plate close to the L-shaped support plate are provided with limit slide rails that cooperate with the limit slide bars.

[0017] The beneficial effect of the utility model is that the utility model can obtain a hydraulic well repair machine derrick through the above design. When in use, the first lifting frame and the second lifting frame are folded and arranged in parallel under the condition of ensuring the normal use height of the table top, so as to reduce the initial height of the table top as much as possible, making the table top more stable. When it is necessary to adjust the height, the three groups of first hydraulic push rods are adjusted first, so that the first hydraulic push rods push up the connecting plate, so that the connecting plate drives the supporting plate to adjust the height of the table top through the connecting rod. When the height of the first hydraulic push rod is not enough, the second hydraulic push rod is adjusted again, so that the second hydraulic push rod pushes the top of the Z-shaped plate to drive the Z-shaped plate to rise. At the same time, the Z-shaped plate will be connected with the L-shaped supporting plate to rise linearly. When the table top is not level, the three first hydraulic push rods are raised as needed by adjusting the three hydraulic cylinders, and the hydraulic cylinders push the lower limit block at the lower position to rise, so as to raise the lower part of the table top. At the same time, the three limit ball heads cooperate with each other to make the table top level, which is convenient for adjustment when the table top is not level, so that the table top can be kept in a level state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the well machine platform and frame structure provided by the embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the well machine platform structure provided by the embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the exploded structure of a portion of the balancing seat provided in an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the frame provided in an embodiment of the utility model.

[0023] In the figure: 100-well machine platform; 110-table; 120-balance seat; 121-support plate; 122-hydraulic cylinder; 123-mounting frame; 124-transverse slide rail; 125-longitudinal slide rail; 126-limit ball head; 127-upper limit block; 128-lower limit block; 200-frame; 210-first lifting frame; 211-Z-shaped plate; 212-first hydraulic push rod; 213-connecting plate; 214-connecting rod; 215-limit slide rail; 220-second lifting frame; 221-L-shaped support plate; 222-second hydraulic push rod; 223-limit slide bar. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 and Figure 2 The utility model provides a technical solution: a derrick for a hydraulic workover rig, comprising

[0026] The well machine platform 100 includes a table top 110, a balancing seat 120 is arranged at the bottom of the table top 110, the balancing seat 120 includes a hydraulic cylinder 122, a limiting ball head 126 and a mounting frame 123, a plurality of mounting frames 123 are installed at equal intervals at the bottom 120 of the table top 110, the limiting ball heads 126 are respectively limitedly rotated and installed on the mounting frames 123, and the hydraulic cylinders 122 are respectively limitedly connected with the limiting ball heads 126; the frame body 200, the frame body 200 includes a first lifting frame 210 and a second lifting frame 220, the first lifting frame 210 is transmission-connected with the balancing seat 120, and the other side of the first lifting frame 210 is limitedly slidably connected with the second lifting frame 220, the first lifting frame 210 and the second lifting frame 220 are parallel and stacked, which reduces the initial height of the table top 110 and makes the table top 110 more stable.

[0027] See also Figure 2 and Figure 3The balancing seat 120 includes a support plate 121, a transverse slide rail 124 and a longitudinal slide rail 125. Three hydraulic cylinders 122 are equally mounted on the support plate 121. The output end of the hydraulic cylinder 122 is fixedly connected with a lower limit block 128. Limit extension pieces are arranged below the four sides of the mounting frame 123. The transverse slide rail 124 is rotationally limitedly connected with the two transverse limit extension pieces of the mounting frame 123. The longitudinal slide rail 125 is rotationally limitedly connected with the two longitudinal limit extension pieces of the mounting frame 123. The top of the limit ball head 126 is slidingly limitedly connected with an upper limit block 127. The upper limit block 127 is fixedly mounted on the middle part of the mounting frame 123. The lower limit block 128 passes through the transverse slide rail 124 and the longitudinal slide rail 125 and is located at the bottom of the limit ball head 126.

[0028] The transverse rail 124 and the longitudinal rail 125 are both arc-shaped, and the longitudinal rail 125 is located inside the transverse rail 124. The middle of the transverse rail 124 and the longitudinal rail 125 is provided with a strip-shaped limiting through hole corresponding to the lower limiting block 128. The limiting ball head 126 is provided with horizontal and vertically staggered limiting grooves. The upper limiting block 127 is provided corresponding to the horizontal groove at the top of the limiting ball head 126, and the lower limiting block 128 is provided corresponding to the longitudinal groove at the bottom of the limiting ball head 126. The upper limit block 127 and the lower limit block 128 are both arc-shaped in contact with the limiting ball head 126. The lower limit block 128 can rotate forward, backward, left and right with the cooperation of the transverse slide rail 124, the longitudinal slide rail 125, the limiting ball head 126 and the upper limit block 127, so as to facilitate lifting the table top 110. At the same time, the bottom of the three hydraulic cylinders 122 can also be provided with a transverse slide rail 124, a longitudinal slide rail 125, a limiting ball head 126, an upper limit block 127 and a lower limit block 128 to increase the adjustment of the table top 110.

[0029] See also Figure 2 and Figure 4 The first lifting frame 210 includes a Z-shaped plate 211 and a connecting plate 213, a group of connecting rods 214 are fixedly connected to the end of the connecting plate 213, a group of connecting rods 214 are fixedly connected to the support plate 121, a group of first hydraulic push rods 212 are fixedly connected to the middle of the connecting plate 213, and the other end of the group of first hydraulic push rods 212 is fixedly connected to one side of the bottom of the Z-shaped plate 211. The outer circle of the support plate 121 is equally divided into three extension plates, and a group of connecting rods 214 are respectively fixedly connected to the three extension plates of the support plate 121, and each group of connecting rods 214 is provided with two. At the same time, each group of first hydraulic push rods 212 is two, and the two first hydraulic push rods 212 cooperate with the connecting plate 213 and the Z-shaped plate 211 to be correspondingly connected with the three groups of connecting rods 214. The first lifting frame 210 is arranged on the three extension plates of the support plate 121. The three groups of first lifting frames 210 are arranged to improve stability. At the same time, the first hydraulic push rods 212 squeeze the connecting plate 213 to lift the support plate 121, and the support plate 121 will drive the table 110 to rise.

[0030] The second lifting frame 220 is connected to the first lifting frame 210, and includes an L-shaped support plate 221 and a second hydraulic push rod 222. The second hydraulic push rod 222 is fixedly installed at the outer bottom of the L-shaped support plate 221. The top of the second hydraulic push rod 222 is fixedly connected to the outer side of the top of the Z-shaped plate 211, and the back of the Z-shaped plate 211 is connected to the L-shaped support plate 221 in a limited sliding manner. The L-shaped support plate 221 is fixedly connected to the limited sliding strip 223 on both sides of the side close to the Z-shaped plate 211. The Z-shaped plate 211 is provided with a limited sliding rail 215 that matches the limited sliding strip 223 on both sides of the side close to the L-shaped support plate 221. The second hydraulic push rod 222 is also provided with two per group. The bottom of the L-shaped support plate 221 is fixedly installed on the adjustment base. The second hydraulic push rod 222 pushes the Z-shaped plate 211 to slide upward in a limited manner.

[0031] Working principle: Place the frame 200 on the adjustment base, fold the first lifting frame 210 and the second lifting frame 220 in parallel while ensuring the normal height of the table 110. When the height needs to be adjusted, first adjust the three sets of first hydraulic push rods 212 so that the first hydraulic push rods 212 push up the connecting plate 213, so that the connecting plate 213 drives the support plate 121 to adjust the height of the table 110 through the connecting rod 214. When the height of the first hydraulic push rod 212 is not enough, adjust the second hydraulic push rod 214. The hydraulic push rod 222 makes the second hydraulic push rod 222 push the top of the Z-shaped plate 211 to drive the Z-shaped plate 211 to rise. At the same time, the Z-shaped plate 211 will be connected with the L-shaped support plate 221 to rise linearly. When the table top 110 is not level, the three first hydraulic push rods 212 can be raised as needed by adjusting the three hydraulic cylinders 122. The hydraulic cylinder 122 pushes the lower limit block 128 at the lower position to rise, thereby raising the lower position. At the same time, the three limit ball heads 126 cooperate with each other to level the table top 110.

[0032] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A derrick for a hydraulic workover rig, characterized in that: include A well machine platform, the well machine platform comprises a table top, a balancing seat is arranged at the bottom of the table top, the balancing seat comprises a hydraulic cylinder, a limiting ball head and a mounting frame, a plurality of the mounting frames are installed at equal intervals at the bottom of the table top, the limiting ball heads are respectively limitedly rotatably mounted on the mounting frames, and the hydraulic cylinders are respectively connected to the limiting ball heads in a limiting manner; The frame body includes a first lifting frame and a second lifting frame, the first lifting frame is transmission-connected to the balance seat, and the other side of the first lifting frame is limitedly and slidably connected to the second lifting frame.

2. A derrick for a hydraulic workover rig according to claim 1, characterized in that: The balancing seat includes a support plate, a transverse slide rail and a longitudinal slide rail, three hydraulic cylinders are equally mounted on the support plate, the output end of the hydraulic cylinder is fixedly connected with a lower limit block, and limit extension plates are arranged below the four sides of the mounting frame, the transverse slide rail is rotationally limitedly connected to the two transverse limit extension plates of the mounting frame, the longitudinal slide rail is rotationally limitedly connected to the two longitudinal limit extension plates of the mounting frame, the top of the limit ball head is slidingly limitedly connected to an upper limit block, the upper limit block is fixedly mounted on the middle part of the mounting frame, and the lower limit block passes through the transverse slide rail and the longitudinal slide rail and is located at the bottom of the limit ball head.

3. A derrick for a hydraulic workover rig according to claim 2, characterized in that: The transverse slide rail and the longitudinal slide rail are both arc-shaped, and the longitudinal slide rail is located inside the transverse slide rail. The middle parts of the transverse slide rail and the longitudinal slide rail are provided with strip-shaped limiting through holes corresponding to the lower limiting block.

4. A derrick for a hydraulic workover rig according to claim 2, characterized in that: The limiting ball head is provided with horizontal and vertically staggered limiting sliding grooves.

5. A derrick for a hydraulic workover rig according to claim 4, characterized in that: The upper limit block is arranged correspondingly to the transverse slide groove at the top of the limiting ball head, and the lower limit block is arranged correspondingly to the longitudinal slide groove at the bottom of the limiting ball head.

6. A derrick for a hydraulic workover rig according to claim 5, characterized in that: The upper limit block and the lower limit block have arc-shaped surfaces in contact with the limit ball head.

7. A derrick for a hydraulic workover rig according to claim 2, characterized in that: The first lifting frame includes a Z-shaped plate and a connecting plate, a group of connecting rods are fixedly connected to the end of the connecting plate, a group of connecting rods are fixedly connected to the support plate, a group of first hydraulic push rods are fixedly connected to the middle of the connecting plate, and the other end of the group of first hydraulic push rods is fixedly connected to one side of the bottom of the Z-shaped plate.

8. A derrick for a hydraulic workover rig according to claim 7, characterized in that: The outer circle of the support plate is equally divided into three extension plates, a group of connecting rods are respectively fixedly connected to the three extension plates of the support plate, each group of connecting rods is provided with two, and each group of the first hydraulic push rods is two, and the two first hydraulic push rods cooperate with the connecting plate and the Z-shaped plate to be correspondingly connected to the three groups of connecting rods.

9. A derrick for a hydraulic workover rig according to claim 8, characterized in that: The second lifting frame is connected correspondingly to the first lifting frame, and the second lifting frame includes an L-shaped support plate and a second hydraulic push rod, the second hydraulic push rod is fixedly installed on the outer bottom of the L-shaped support plate, the top of the second hydraulic push rod is fixedly connected to the outer side of the top of the Z-shaped plate, and the back of the Z-shaped plate is limitedly slidably connected to the L-shaped support plate.

10. A derrick for a hydraulic workover rig according to claim 9, characterized in that: Both sides of the L-shaped support plate close to the Z-shaped plate are fixedly connected to limit slide bars, and both sides of the Z-shaped plate close to the L-shaped support plate are provided with limit slide rails matched with the limit slide bars.

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