Hair braid lifting and replacing equipment suitable for oil pumping unit

Abstract

The invention provides hair braid lifting and replacing equipment suitable for an oil pumping unit, and relates to the technical field of oil pumping unit equipment, the hair braid lifting and replacing equipment comprises an electric flat car, a lifting frame and a supporting platform, an extension platform is arranged on one side of the top end of the supporting platform, and two supporting frames are fixedly installed at the top end of the extension platform; a lifting mechanism used for lifting the hair braid is arranged below the supporting frame and comprises a connecting plate located below the supporting frame, the two sides of the bottom end of the connecting plate are fixedly connected with two bent hooks used for hanging the hair braid, the bent hooks are provided with fixing assemblies used for fixing the hair braid, and each fixing assembly comprises a top plate arranged on the surface of the corresponding bent hook in a sleeving mode. A clamping block is fixedly connected to the middle of the bottom end of the top plate, a reinforcing plate is fixedly connected to one end of the top plate, the top end and the two sides of the hair braid are fixed through the top block and the reinforcing plate, the stability of the hair braid in the lifting process is ensured, and meanwhile the situation that the hair braid slides off due to the weight influence in the installation process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pumping unit equipment, and in particular to a hair braid lifting and replacement device suitable for a pumping unit. Background Art

[0002] The hair braid is an important component in a pumping unit. It is composed of multiple strands of wire ropes and is connected to the donkey head and polished rod of the pumping unit through a suspension hanger and a square clamp at both ends, forming a flexible transmission system to drive the downhole oil pump to work, realize the extraction of oil fluid, and can withstand various tensile and gravity loads generated during the oil pumping process to ensure the stable operation of the oil pumping system. It can also play a certain buffering and shock absorption role during the oil pumping process to reduce the impact and damage to other components of the pumping unit. When there are broken wires or loose strands, it must be replaced in time. Otherwise, accidents such as the suspension hanger falling and hitting the wellhead will occur when the hair braid breaks, affecting the normal use of the pumping unit.

[0003] Deficiencies in the prior art: Since the hair braid is relatively heavy, when the traction force is insufficient during the up and down movement, the hair braid may fall off during the rising process, and repeated operations are required, which is very time-consuming and laborious. The old hair braid needs to be manually removed from the donkey head and directly thrown to the ground, which poses a safety hazard. At the same time, after the new hair braid is lifted to the height of the donkey head, there is no structure to fix or support it. During the installation process, affected by the weight of the hair braid itself, the hair braid may fall off from the suspension hanger when it is not fixed. Summary of the Invention

[0004] The problem to be solved by the present invention is that when the traction force is insufficient during the up and down movement, the hair braid may fall off during the rising process, and during the installation process, affected by the weight of the hair braid itself, the hair braid may fall off from the suspension hanger when it is not fixed.

[0005] To solve the above technical problems, the present invention provides a hair braid lifting and replacement device suitable for a pumping unit, including an electric flatbed truck and a lifting frame fixedly installed on its top. The top of the lifting frame is fixedly connected with a support platform. One side of the top of the support platform is provided with an extension platform. Two support frames are fixedly installed on the top of the extension platform. A lifting mechanism for lifting the hair braid is arranged below the support frames; The lifting mechanism includes a connecting plate located below the support frames. Two hooks for hanging the hair braid are fixedly connected to both sides of the bottom end of the connecting plate. A fixing component for fixing the hair braid is arranged on the hooks. A guide rod is fixedly connected to the top end of the hooks. The fixed component includes a top plate sleeved on the surface of the hook. A clamping block is fixedly connected to the middle of the bottom end of the top plate. A reinforcing plate is arranged at one end of the top plate, and a collar is arranged at the other end of the top plate. The position of the collar corresponds to the position of the guide rod and is sleeved on the outer surface of the guide rod.

[0006] Preferably, a first motor is fixedly installed at the top end of the connecting plate. The output end of the first motor is fixedly connected to a turntable, and two winding rods are fixedly connected to the turntable.

[0007] Preferably, two hanging rings are fixedly connected to the top end of the connecting plate. Two hydraulic jacks are fixedly installed on the other two sides of the bottom end of the connecting plate. A braid body is sleeved on the two hooks together.

[0008] Preferably, the extending end of the hydraulic jack is fixedly connected to the top end of the top plate. The clamping block is located at the top end of the braid body, and the two reinforcing plates are respectively located on both sides of the outer surface of the braid body.

[0009] Preferably, a connecting groove is formed at one end of the top plate close to the reinforcing plate. A connecting block is fixedly connected to the top end of the reinforcing plate. The connecting block is movably connected to the inner cavity of the connecting groove. Installation holes are formed in the middle of the connecting groove and the connecting block. A fastening bolt for fixing the reinforcing plate is screwed through the inner cavities of the two installation holes together.

[0010] Preferably, grooves are formed at the bottom end of the clamping block and at one end of the reinforcing plate close to the clamping block. The reinforcing plate is movably connected to the outer surface of the clamping block, and the inner cavities of the two grooves are connected and communicated.

[0011] Preferably, a wire reel is rotatably connected to one side of the inner wall of each of the two support frames. The two wire reels are fixedly connected to each other. A connecting rod is fixedly connected to the other side of the inner wall of each of the two support frames. A lifting rope is wound around the surface of the wire reel. A pulley is rotatably connected to the surface of the connecting rod. The end of the lifting rope away from the wire reel is wound around the outer surface of the pulley.

[0012] Preferably, a motor is installed at one end of one of the support frames. The output end of the motor penetrates through the support frame and is fixedly connected to the wire reel. The end of the lifting rope away from the pulley is fixedly connected to the hanging ring.

[0013] Preferably, a linear guide rail for extending the movement of the platform is arranged in the middle of the top end of the support platform. A driving device for driving the linear guide rail to move linearly is arranged on the support platform. The extending platform is arranged at the top end of the linear guide rail.

[0014] The technical effects and advantages of the present invention: In the present invention, a lifting mechanism is provided to move the pony tail up and down. When replacing the pony tail, a new pony tail is hung on the surfaces of two hooks, and then the pony tail is fixed on the hook surfaces through a fixing component. The motor is started, and the output end of the motor drives the winding shaft to rotate. By the rotation of the winding shaft, the winding and unwinding operations of the lifting rope are controlled. When the lifting rope is wound, the connecting plate is driven to move upward, so that the pony tail fixed on the hook is driven to move upward, enabling it to be easily lifted to the height of the donkey head, effectively improving the working efficiency of replacing the pony tail, avoiding the situation that the pony tail falls during the rising process, resulting in a safety accident. At the same time, the old pony tail is wound by two winding rods, so that the old pony tail can be easily removed.

[0015] In the present invention, a fixing component is provided to clamp and fix the pony tail on the hook. When the pony tail is hung on the hook surface, the extending end of the driving hydraulic ejector rod is extended, the top plate is controlled to move downward, and the clamping block is driven to squeeze downward, so as to fix the pony tail at the top of the hook. Then, the fastening bolt in the inner cavity of the mounting hole is rotated, so that the reinforcing plate continuously moves towards the clamping block, squeezing and fixing both sides of the pony tail, increasing the fixing of the side of the pony tail body, avoiding the lengths of the two sides of the pony tail body being inconsistent and generating inclination under the influence of weight, resulting in its slipping off from one side, ensuring the stability and firmness of the pony tail on the hook, and avoiding the pony tail falling off the hook during the lifting process.

[0016] In the present invention, a fixing component is provided to fix the pony tail lifted to the height of the donkey head. Since the pony tail is fixed by two hooks and a fixing component, the part of the pony tail to be installed in the donkey head suspension device is fixed. After being lifted to the specified height, the driving device is started to control the linear guide rail to perform a linear motion, so as to drive the extension platform at the top to move outward, extend above the suspension device, and finally adjust according to the specific installation position, install the fixed part of the pony tail into the suspension device, and then disassemble the fixing component after the installation is completed, ensuring the stability of the pony tail during the installation process and avoiding the situation of falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the lifting mechanism of the present invention Figure 1 。

[0019] Figure 3 It is a schematic diagram of the structure of the lifting mechanism of the present invention Figure 2 。

[0020] Figure 4 It is for the present invention Figure 3 The enlarged schematic diagram of the structure at A in.

[0021] Figure 5 Schematic diagram of the cross-sectional structure of the lifting mechanism of the present invention Figure 1 .

[0022] Figure 6 Schematic diagram of the cross-sectional structure of the lifting mechanism of the present invention Figure 2 .

[0023] Figure 7 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0024] The accompanying drawings are marked as follows: 1. Electric flatbed truck; 2. Lifting frame; 3. Support platform; 4. Extension platform; 5. Support frame; 6. Lifting mechanism; 61. Connecting plate; 62. Hook; 63. Fixing assembly; 631. Top plate; 632. Block; 633. Reinforcement plate; 634. Ring; 635. Connecting groove; 636. Connecting block; 637. Mounting hole; 64. Guide rod; 65. Lifting ring; 66. Hydraulic push rod; 67. Braid body; 68. First motor; 69. Turntable; 610. Winding rod; 7. Reel; 8. Connecting rod; 9. Lifting rope; 10. Pulley; 11. Second motor; 12. Linear guide rail. DETAILED DESCRIPTION

[0025] The present invention provides a braid lifting and replacing device suitable for an oil pumping unit, such as Figure 1 - Figure 7 As shown, it includes an electric flatbed truck 1 and a lifting frame 2 fixedly installed on the top thereof, the top of the lifting frame 2 is fixedly connected to a supporting platform 3, an extension platform 4 is provided on one side of the top of the supporting platform 3, two supporting frames 5 are fixedly installed on the top of the extension platform 4, and a lifting mechanism 6 for lifting the braids is provided below the support frame 5. The movement of the electric flatbed truck 1 drives the entire equipment to move, wherein the electric flatbed truck 1 is a prior art and will not be described in detail here.

[0026] Further, such as Figure 1 and Figure 2 As shown, the lifting mechanism 6 includes a connecting plate 61 located below the support frame 5, and two hooks 62 for hanging hair braids are fixedly connected on both sides of the bottom end of the connecting plate 61. A fixing component 63 for fixing the hair braid is provided on the hook 62, and a guide rod 64 is fixedly connected to the top of the hook 62.

[0027] Further, such as Figure 2 、 Figure 3 and Figure 4As shown, the fixing assembly 63 includes a top plate 631 that is sleeved on the surface of the hook 62, and a block 632 is fixedly connected to the middle part of the bottom end of the top plate 631. A reinforcing plate 633 is provided at one end of the top plate 631, and a ring 634 is fixedly connected to the other end of the top plate 631. The position of the ring 634 corresponds to the position of the guide rod 64 and is sleeved on the outer surface of the guide rod 64. When the top plate 631 moves downward, the ring 634 also gradually moves downward and is sleeved on the outer surface of the guide rod 64, ensuring the accuracy of the moving direction of the block 632, while increasing the accuracy and stability of the position of the top plate 631.

[0028] Further, such as Figure 2 As shown, a first motor 68 is fixedly installed on the top of the connecting plate 61, and a turntable 69 is fixedly connected to the output end of the first motor 68. Two winding rods 610 are fixedly connected to the turntable 69. Before replacing a new braid, the lifting mechanism 6 is first driven to rise above the donkey's head, and then the extension platform 4 is driven to extend, so that the old braid is clamped between the two winding rods 610, and the first motor 68 is started. The old braid is continuously wound around the surface of the winding rod 610 through the rotation of the output end of the first motor 68, so that the old braid is removed.

[0029] Further, such as Figure 3 As shown, two hanging rings 65 are fixedly connected to the top of the connecting plate 61, two hydraulic push rods 66 are fixedly installed on the other two sides of the bottom end of the connecting plate 61, and a braid body 67 is commonly sleeved on the two hooks 62.

[0030] Further, such as Figure 3 、 Figure 4 and Figure 5 As shown, the protruding end of the hydraulic push rod 66 is fixedly connected to the top of the top plate 631, the block 632 is located at the top of the braid body 67, and the reinforcement plate 633 is located on both sides of the outer surface of the braid body 67. When replacing the braid, the part of the braid body 67 that needs to be installed in the rope hanger is hung on the surface of the two hooks 62, and then the protruding end of the hydraulic push rod 66 is driven to extend, pushing the top plate 631 to move downward, so that the block 632 gradually moves downward to squeeze the braid body 67, so that the braid body 67 is fixed on the hook 62.

[0031] Further, such as Figure 5 and Figure 6As shown, a connection groove 635 is provided at one end of the top plate 631 close to the reinforcement plate 633. A connection block 636 is fixedly connected to the top end of the reinforcement plate 633. The connection block 636 is movably connected to the inner cavity of the connection groove 635. Mounting holes 637 are provided in the middle of both the connection groove 635 and the connection block 636. A fastening bolt for fixing the reinforcement plate 633 is threaded through the inner cavities of the two mounting holes 637. After the clamping block 632 is fixed to the top end of the pigtail body 67, the fastening bolt in the inner cavity of the mounting hole 637 is rotated to push the reinforcement plate 633 towards the clamping block 632, continuously squeezing the side of the pigtail body 67, increasing the fixation of the side of the pigtail body 67, avoiding the inconsistent lengths of the two sides of the pigtail body 67, tilting due to the influence of weight, and causing it to slip off from one side, effectively increasing the firmness and stability of the pigtail body 67 on the hook 62.

[0032] Further, as Figure 5 and Figure 6 shown, grooves are provided at the bottom end of the clamping block 632 and at one end of the reinforcement plate 633 close to the clamping block 632. The reinforcement plate 633 is movably connected to the outer surface of the clamping block 632. The inner cavities of the two grooves are connected and communicate with each other. By providing the grooves, the inner walls of the clamping block 632 and the reinforcement plate 633 can better fit the surface of the pigtail body 67, ensuring that the pigtail body 67 will not fall off the hook 62 during the lifting process.

[0033] Further, as Figure 1 shown, a winding shaft 7 is rotatably connected to one side of the inner walls of the two support frames 5. The two winding shafts 7 are fixedly connected to each other. A connecting rod 8 is fixedly connected to the other side of the inner walls of the two support frames 5. A lifting rope 9 is wound around the surface of the winding shaft 7. A pulley 10 is rotatably connected to the surface of the connecting rod 8. One end of the lifting rope 9 away from the winding shaft 7 is wound around the outer surface of the pulley 10.

[0034] Further, as Figure 1 shown, a second motor 11 is installed at one end of one of the support frames 5. The output end of the second motor 11 penetrates the support frame 5 and is fixedly connected to the winding shaft 7. One end of the lifting rope 9 away from the pulley 10 is fixedly connected to the hanging ring 65. By controlling the rotation of the winding shaft 7 through the output end of the second motor 11, when the winding shaft 7 rotates clockwise, the lifting rope 9 is controlled to pay out, causing the lifting mechanism 6 to move downward. When the winding shaft 7 rotates counterclockwise, the lifting rope 9 is controlled to take up the slack, causing the lifting mechanism 6 to move upward, realizing the lifting movement of the pigtail body 67. The lifting rope 9 is connected to the hanging ring 65 through the pulley 10, and the pulley 10 guides the direction of the lifting rope 9 during the process of taking up and paying out the lifting rope 9.

[0035] Further, as Figure 1 and Figure 7As shown in the figure, a linear guide rail 12 for the movement of the extension platform 4 is provided in the middle of the top of the support platform 3. A driving device for driving the linear movement of the linear guide rail 12 is provided on the support platform 3. The driving device includes a servo motor, a lead screw, etc. The existing technology of the driving device is relatively mature and will not be elaborated here. The extension platform 4 is arranged at the top of the linear guide rail 12. After the new hair braid is lifted to the specified height by the lifting rope 9, the driving device is started to control the linear guide rail 12 to achieve linear movement, so as to drive the extension platform 4 at the top to move outward and extend above the suspension device. According to the specific position of the suspension device, the position of the hair braid body 67 is adjusted, and the hair braid body 67 between the two hooks 62 is installed into the suspension device. After the installation is completed, the fixing component 63 is disassembled to ensure the stability of the hair braid during the installation process and avoid falling off.

[0036] Working principle of the present invention: First, remove the old hair braid in the donkey head suspension rope device. Move the device to the designated position by the electric flatbed truck 1. Before replacing the new hair braid, first drive the lifting mechanism 6 to rise above the donkey head. Then, drive the extension platform 4 to extend through the linear guide rail 12, and clamp the old hair braid between the two winding rods 610. Start the first motor 68. Through the rotation of the output end of the first motor 68, the old hair braid continuously winds around the surface of the winding rod 610, so that the old hair braid is removed. After removal, lower the old hair braid to the ground through the lifting mechanism 6. When replacing the new hair braid, release the lifting rope 9 to the longest length, so that the worker places the new hair braid body 67 on the two hooks 62, and at the same time moves the part to be installed in the suspension rope device to the middle of the two hooks 62. Then start the hydraulic ejector rod 66, drive the extending end of the hydraulic ejector rod 66 to extend, and push the top plate 631 to move downward, so that the clamping block 632 gradually moves downward to squeeze the hair braid body 67, so that the hair braid body 67 is fixed on the hook 62. When the top plate 631 moves downward, the collar 634 also gradually moves downward and sleeves on the outer surface of the guide rod 64 to ensure the accuracy of the moving direction of the clamping block 632, and at the same time increase the accuracy and stability of the position of the top plate 631. After the clamping block 632 is fixed at the top of the hair braid body 67, rotate the fastening bolt in the inner cavity of the mounting hole 637. As the fastening bolt rotates, drive the connecting block 636 to move in the inner cavity of the connecting groove 635, so that it pushes the reinforcing plate 633 to move towards the clamping block 632, continuously squeezing the side of the hair braid body 67 to increase the fixation of the side of the hair braid body 67, and avoid the lengths of the two sides of the hair braid body 67 being inconsistent and tilting due to the influence of weight, resulting in it slipping from one side. After the fixation is completed, start the second motor 11. When controlling the winding shaft 7 to rotate counterclockwise through the output end of the second motor 11, control the lifting rope 9 to take up the line, so that the lifting mechanism 6 moves upward to realize the lifting movement of the hair braid body 67. The lifting rope 9 passes through the pulley 10 and is connected to the hanging ring 65 to guide the direction of the lifting rope 9 during the process of taking up and releasing the line by the pulley 10. After the hair braid body 67 is lifted to the designated height through the lifting rope 9, start the driving device to control the linear guide rail 12 to realize linear motion, so as to drive the top extension platform 4 to move outward and extend above the suspension rope device, and adjust the up, down, left and right positions of the hair braid body 67 according to the specific position of the suspension rope device, and install the hair braid body 67 between the two hooks 62 into the suspension rope device. After the installation is completed, start the hydraulic ejector rod 66 again, control the extending end of the hydraulic ejector rod 66 to contract, drive the connecting plate 61 to move upward, so that the fixing component 63 is separated from the hair braid body 67, and complete the replacement work of the hair braid.

[0037] It will be understood that the present invention is described by way of some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A hair braid lifting and replacement device applicable to a pumping unit, comprising an electric flatbed truck (1) and a lifting frame (2) fixedly installed at the top thereof, wherein a support platform (3) is fixedly connected to the top of the lifting frame (2), and the characteristics are as follows: One side of the top end of the support platform (3) is provided with an extended platform (4). Two support frames (5) are fixedly installed at the top end of the extended platform (4). A lifting mechanism (6) for lifting the sucker rod is arranged below the support frames (5). The lifting mechanism (6) includes a connecting plate (61) located below the support frames (5). Two hooks (62) for hanging the sucker rod are fixedly connected to both sides of the bottom end of the connecting plate (61). A fixing component (63) for fixing the sucker rod is arranged on the hooks (62). A guide rod (64) is fixedly connected to the top end of the hooks (62). The fixing component (63) includes a top plate (631) sleeved on the surface of the hook (62). A clamping block (632) is fixedly connected to the middle of the bottom end of the top plate (631). A reinforcing plate (633) is arranged at one end of the top plate (631). A collar (634) is arranged at the other end of the top plate (631). The position of the collar (634) corresponds to the position of the guide rod (64) and is sleeved on the outer surface of the guide rod (64).

2. The hair braid lifting and replacement device for pumping units according to claim 1, characterized in that: Two hanging rings (65) are fixedly connected to the top end of the connecting plate (61). Two hydraulic jacks (66) are fixedly installed on the other two sides of the bottom end of the connecting plate (61). A sucker rod body (67) is sleeved on the two hooks (62) together.

3. The hair braid lifting and replacement device for pumping units according to claim 1, characterized in that: A first motor (68) is fixedly installed at the top end of the connecting plate (61). A turntable (69) is fixedly connected to the output end of the first motor (68). Two winding rods (610) are fixedly connected to the turntable (69).

4. A hair braid lifting and replacement device applicable to a pumping unit according to claim 2, characterized in that: The extending end of the hydraulic jack (66) is fixedly connected to the top end of the top plate (631). The clamping block (632) is located at the top end of the sucker rod body (67). The two reinforcing plates (633) are respectively located on both sides of the outer surface of the sucker rod body (67).

5. The hair braid lifting and replacement equipment for pumping units according to claim 1, characterized in that: A connecting groove (635) is formed at one end of the top plate (631) close to the reinforcing plate (633). A connecting block (636) is fixedly connected to the top end of the reinforcing plate (633). The connecting block (636) is movably connected to the inner cavity of the connecting groove (635). Mounting holes (637) are formed in the middle of the connecting groove (635) and the connecting block (636). A fastening bolt for fixing the reinforcing plate (633) is screwed through the inner cavities of the two mounting holes (637) together.

6. The hair braid lifting and replacement device for pumping units according to claim 1, characterized in that: Grooves are formed at the bottom end of the clamping block (632) and at one end of the reinforcing plate (633) close to the clamping block (632). The reinforcing plate (633) is movably connected to the outer surface of the clamping block (632). The inner cavities of the two grooves are connected and communicated with each other.

7. The hair braid lifting and replacement device for pumping units according to claim 2, characterized in that: One side of the inner wall of each of the two support frames (5) is rotatably connected with a winding shaft (7). The two winding shafts (7) are fixedly connected to each other. The other side of the inner wall of each of the two support frames (5) is fixedly connected with a connecting rod (8). A lifting rope (9) is wound around the surface of the winding shaft (7). A pulley (10) is rotatably connected to the surface of the connecting rod (8). One end of the lifting rope (9) away from the winding shaft (7) is wound around the outer surface of the pulley (10).

8. The hair braid lifting and replacement device for a pumping unit according to claim 7, characterized in that: One end of one of the support frames (5) is provided with a second motor (11), the output end of the second motor (11) penetrates through the support frame (5) and is fixedly connected to a wire winding shaft (7), and one end of the lifting rope (9) far away from the pulley (10) is fixedly connected to a hanging ring (65).

9. The hair braid lifting and replacement device for pumping units according to claim 1, characterized in that: In the middle of the top end of the support platform (3), a linear guide rail (12) for the movement of the extension platform (4) is provided. A driving device for driving the linear guide rail (12) to move linearly is arranged on the support platform (3), and the extension platform (4) is arranged at the top end of the linear guide rail (12).

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