Cylinder dismounting device for spigot steel pipe poles

Abstract

The present application relates to the technical fields of disassembling and assembling of inserted steel pipe poles, in particular to a hydraulic cylinder disassembling and assembling device for inserted steel pipe poles, which comprises a separating mechanism, the separating mechanism comprises two ring female sockets, first hydraulic rods, an I-shaped block and a circular cylinder, and the inside of the left ring female socket is filled with hydraulic oil. The present application can detect the pushing resistance on both sides of the second inserted pole and the first inserted pole. When the pushing force on one side of the separation between the first inserted pole and the second inserted pole is too large and the pushing force on the other side is too small, the pressure of the two first hydraulic rods acting on the two pressure sensors will be inconsistent, so that the pushing force in the two first hydraulic rods can be adjusted in time, so that the first hydraulic rod can balance the pushing force between the two sides of the second inserted pole and the first inserted pole during work, so that the second inserted pole is evenly stressed on both sides and will not be stuck, and the second inserted pole and the first inserted pole inserted together can be quickly separated, improving the disassembling and assembling efficiency.

Description

Technical Field

[0001] This invention relates to the field of disassembly and assembly technology of insertable steel pipe poles, specifically to a hydraulic cylinder disassembly and assembly device for insertable steel pipe poles. Background Technology

[0002] Power transmission line plug-in steel pipe poles are a type of equipment support widely used in urban and rural power grid transmission lines. Compared with similar products (cement poles, angle steel towers, etc.), they are widely used because of their beautiful appearance, light weight, small footprint, ability to meet the load requirements of multi-circuit large-section conductors and the strength requirements of corner poles without guy wires. Power plug-in steel pipe poles are generally more than ten meters high, and some can reach tens of meters. Therefore, for the sake of transportation and connection stability, plug-in steel pipe poles are generally made of multiple sections.

[0003] When power transmission line plug-in poles are no longer needed and need to be disassembled and recycled, the two plug-in poles should be laid horizontally. A detachable connector and a detachable base should be installed on the top of the plug-in poles, and bolts of corresponding diameter should be used to install them onto the upper and lower connecting pole sections respectively. A hydraulic cylinder is installed between the two detachable connectors. (Refer to the attached document.) Figure 11 The hydraulic cylinder is activated to separate the two plug-in rods that are inserted together.

[0004] When a single-sided hydraulic cylinder separates two interlocking rods, excessive force on one side can easily cause them to jam. Even with cylinders on both sides, the difference in thrust between the two sides of the interlocking rods during hydraulic separation cannot be detected. If one side's thrust is too high and the other too low, the thrust cannot be adjusted, resulting in an imbalance of thrust on both sides and continued jamming. This hinders the rapid separation of the two interlocking rods, reducing assembly and disassembly efficiency. Therefore, we propose a hydraulic cylinder assembly and disassembly device for interlocking steel pipe rods to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a hydraulic cylinder assembly and disassembly device for inserting steel pipe rods, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic cylinder disassembly and assembly device for inserting steel pipe rods. The disassembly and assembly device includes a separation mechanism, which includes two annular female seats, a first hydraulic rod, an I-shaped block, and a cylindrical cylinder. The left annular female seat is filled with hydraulic oil. The two annular female seats can be respectively fitted onto the outside of the two first and second insert rods that need to be separated. The right side of the left annular female seat is rotatably connected to two first hydraulic rods, and the left side of the right annular female seat is rotatably connected to two cylindrical cylinders. The output end of the first hydraulic rod is rotatably connected to the left side of the I-shaped block via a hinge. The right inner wall of the I-shaped block is rotatably connected to a cylinder via a hinge. A threaded tube is threaded on the outer side of the cylinder. A connecting rod is threaded on the inner side of the cylindrical cylinder. The threaded tube is threaded on the outer side of the connecting rod to achieve distance compensation during installation. The separation of the first and second insert rods is achieved by pushing the first hydraulic rod.

[0007] In use, the two annular female seats are passed through the right end of the second connector rod and respectively fitted onto the outside of the first and second connector rods. When it is necessary to increase the distance between the two annular female seats to match the first and second connector rods of different lengths, the threaded tube is rotated in the opposite direction. The threaded tube rotates on the outside of the corresponding cylinder and separates from the corresponding connecting rod. When it is necessary to remove the connecting rod and replace it with a connecting rod of other length specifications, the connecting rod is rotated in the opposite direction to separate from the cylinder. Then, the connecting rod of other length specifications is rotated in the forward direction and threaded into the cylinder. The threaded tube is rotated in the forward direction and threaded onto the outside of the connecting rod of other length specifications, thereby increasing the distance between the two annular female seats to match the first and second connector rods of different lengths.

[0008] The two circular female seats are fixed to the first and second plug rods by a fixing mechanism;

[0009] The line connecting the rotation point of the first hydraulic rod on the left annular base and the rotation point of the cylindrical tube on the right annular base is L. The two hinge rotation points on the I-shaped block are not on the line L, and the two hinge rotation points of the I-shaped block are in the direction of the line L closer to the first insertion rod.

[0010] The present invention can achieve uniform pushing when the second plug rod is pushed to separate from the first plug rod, prevent jamming caused by uneven force when the second plug rod and the first plug rod are separated, and increase the efficiency of the second plug rod and the first plug rod.

[0011] In this invention, the line connecting the rotation point of the first hydraulic rod on the left annular base and the rotation point of the cylindrical tube on the right annular base is L. The two hinge rotation points on the I-shaped block are not on the line L, but are located on the line L in the direction close to the first connecting rod. Under this configuration, when the thrust of the first hydraulic rod acts on the second connecting rod, the two thrust points on the second connecting rod have a force that moves outwards. This can reduce the contact area between the second connecting rod and the first connecting rod to a certain extent, thereby reducing the friction surface and facilitating quick separation.

[0012] Simultaneously, during the process of the first hydraulic rod starting and using hydraulic thrust to separate the second connector rod from the first connector rod, the aforementioned setting of offsetting the I-shaped block towards the connector rod direction allows a portion of the thrust of the first hydraulic rod to be applied to the pressure sensor through the first screw and round rod. This enables the detection of the thrust on both sides of the second connector rod and the first connector rod. When the thrust on one side at the separation point of the first and second connector rods is too large and the thrust on the other side is too small, the pressure exerted by the two first hydraulic rods on the two pressure sensors will be inconsistent. This allows for timely adjustment of the thrust within the two first hydraulic rods, ensuring that the first hydraulic rod can balance the thrust on both sides of the second connector rod during operation. This results in uniform force on both sides of the second connector rod, synchronous pushing, and no jamming. Consequently, the two connector rods that are connected together can be quickly separated from the first connector rod, improving the efficiency of disassembly and assembly.

[0013] More preferably, an annular block is slidably sleeved on the outer side of the cylinder, and an L-shaped seat is fixedly connected to the bottom end of the annular block. The L-shaped seat is rotatably connected to the left annular female seat through a hinge. A first screw is fixedly connected to the side of the annular block near the first plug rod. A round rod is threaded on the outer side of the first screw. A pressure sensor is fixedly connected to the end of the round rod near the first plug rod. The pressure sensor can fit against the surface of the first plug rod.

[0014] The pressure sensor is installed as follows: the round rod is then rotated, and the round rod rotates on the outside of the corresponding first screw and moves toward the first plug rod. The round rod drives the corresponding pressure sensor to move, and the outside of the pressure sensor contacts the outside of the first plug rod.

[0015] More preferably, circular holes are provided on the front and rear inner walls of the left-side annular female seat. The oil inlet end of the first hydraulic rod is connected to the circular hole on the annular female seat through a U-shaped hose. After the hydraulic oil pressure in the annular female seat increases, the hydraulic oil in the annular female seat can enter the first hydraulic rod through the circular hole and the U-shaped hose. The movable end of the first hydraulic rod can move to the right, so that the two first plug rods and the second plug rod have a force of opposite movement.

[0016] The first hydraulic rod operates as follows: when the second connector needs to be removed from the outside of the first connector, the second hydraulic rod is activated. The output end of the second hydraulic rod drives the piston to slide inside the circular tube, causing the hydraulic oil in the left annular seat to flow through the circular and triangular holes into the corresponding U-shaped hose. The U-shaped hose then flows the oil into the corresponding first hydraulic rod. As the amount of oil in the first hydraulic rod increases, the output end of the first hydraulic rod drives the I-shaped block to move to the right. The I-shaped block drives the cylinder to move to the right, and the cylinder slides inside the corresponding annular block. The cylinder drives the connecting rod to move to the right through the threaded tube, and the connecting rod moves to the right through the circular cylinder. The circular cylinder then drives the second connector to move to the right.

[0017] In a further preferred embodiment, the disassembly and assembly device also includes a round tube, the right end of which is connected to the bottom of the annular female seat and fixed with the same L-shaped hose. The left side of the round tube is fixedly connected to a second hydraulic rod via a U-shaped seat. The movable end of the second hydraulic rod is fixedly connected to a piston, which is slidably connected to the inside of the round tube. By extending the movable end of the second hydraulic rod, the hydraulic oil in the round tube is filled into the annular female seat through the L-shaped hose, thereby increasing the hydraulic oil pressure in the annular female seat.

[0018] More preferably, a gear ring is rotatably fitted on the inner side of the left-side annular female seat. Triangular holes are opened on both sides of the inner wall of the gear ring, and the two triangular holes are symmetrically arranged. A gear meshes on the inner side of the gear ring, and the gear is driven to rotate by a motor. The oil in the annular female seat can pass through the triangular holes and the circular holes to enter the corresponding U-shaped hose. As the gear ring rotates, it drives the two triangular holes to rotate, and the overlap area between the two triangular holes and the corresponding circular holes changes. When the overlap area between one triangular hole and the corresponding circular hole increases, the overlap area between the other triangular hole and the corresponding circular hole decreases, thereby changing the oil inlet area of ​​the two first hydraulic rod input ends.

[0019] When the motor is started, it drives the gear to rotate, which in turn drives the gear ring to rotate. As the gear ring rotates, it causes the two triangular holes to rotate. The overlapping areas of the two triangular holes and the two circular holes are different, resulting in different amounts of oil from the annular socket passing through the triangular holes into the two circular holes. This causes different amounts of oil to enter the two first hydraulic rods through the two U-shaped hoses, thereby adjusting the thrust within the two first hydraulic rods. This balances the thrust between the second connector rod and the two sides of the first connector rod, ensuring that the force on both sides of the second connector rod is uniform, allowing the second connector rod to be quickly removed from the first connector rod.

[0020] More preferably, the fixing mechanism includes a support block and an L-shaped block. The support block is fixedly installed on the outside of the corresponding annular female seat. The two corresponding support blocks are rotatably connected to a second screw on the side that is close to each other. The L-shaped block is threaded onto the outside of the corresponding second screw.

[0021] More preferably, each of the two corresponding support blocks has two positioning rods fixedly connected to one side of each other, and the L-shaped block is slidably sleeved on the outside of the two corresponding positioning rods.

[0022] In a further preferred embodiment, threaded holes are provided on the sides of the two corresponding L-shaped blocks that are close to each other, and a knob is fixedly connected to the end of the second screw.

[0023] The present invention fixes the annular female seat to the first and second plug rods by drilling holes on the outside of the first and second plug rods using an external tool, aligning the drilled holes with the corresponding threaded holes. Rotating a knob causes the corresponding second screw to rotate, which in turn moves the corresponding L-shaped block. The L-shaped block slides on the outside of the two corresponding positioning rods, and the two L-shaped blocks respectively fit against the outside of the first and second plug rods. External bolts are then used to fix the L-shaped blocks through the corresponding threaded holes and drilled holes, thereby fixing the two annular female seats to the outside of the first and second plug rods respectively.

[0024] More preferably, the motor is fixed on the top of one of the support blocks, and the end of the motor's output shaft extends into a circular female seat on the left and is fixed to the left side of the gear. The circular female seat on the left is rotatably sleeved on the outside of the motor's output shaft through a sealed bearing.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention enables uniform pushing when separating the second connector rod from the first connector rod. When the thrust of the first hydraulic rod acts on the second connector rod, the two thrust points on the second connector rod exert a force that moves outwards. This reduces the contact area between the second connector rod and the first connector rod to a certain extent, thereby reducing the friction surface and facilitating rapid separation. The pressure exerted by the two first hydraulic rods on the two pressure sensors will be inconsistent, allowing for timely adjustment of the thrust within the two first hydraulic rods. This ensures that the first hydraulic rods can balance the thrust between the two sides of the second connector rod and the first connector rod during operation, resulting in uniform force on both sides of the second connector rod and preventing jamming. This allows for rapid separation of the two connected second connector rods from the first connector rod, improving assembly and disassembly efficiency.

[0027] 2. In this invention, the reverse-rotating threaded tube rotates on the outside of the cylinder, separating the threaded tube from the corresponding connecting rod. When it is necessary to remove the connecting rod and replace it with a connecting rod of other length specifications, the reverse-rotating connecting rod separates from the cylinder. Then, the connecting rod of other length specifications is rotated forward and threadedly connected to the cylinder. The threaded tube rotates forward, and the threaded tube is threaded onto the outside of the connecting rod of other length specifications, thereby increasing the distance between the two annular female seats to match the first and second plug-in rods of different lengths.

[0028] 3. In this invention, rotating the knob drives the second screw to rotate, and the rotation of the second screw drives the L-shaped block to move. The L-shaped block slides on the outside of the two positioning rods. The two L-shaped blocks are respectively attached to the outside of the first and second plug rods. The L-shaped blocks are fixed by external bolts passing through threaded holes and drilled holes. The two circular female seats are respectively fixed on the outside of the first and second plug rods. Rotating the circular rod moves it closer to the first plug rod, and the circular rod drives the pressure sensor to move. The outside of the pressure sensor contacts the outside of the first plug rod.

[0029] 4. Activating the second hydraulic rod drives the piston to slide inside the circular tube, causing hydraulic oil in the left annular seat to flow through the circular and triangular holes into the U-shaped hose. The U-shaped hose then flows the oil into the first hydraulic rod. The first hydraulic rod, via the I-shaped block, moves the cylinder to the right. The cylinder, via the threaded tube, moves the connecting rod to the right. The connecting rod, via the circular cylinder, moves the second insertion rod to the right. The motor, via gears, drives the gear ring to rotate. The gear ring causes the overlapping areas of the two triangular holes and the two circular holes to differ, resulting in different amounts of oil entering the two first hydraulic rods through the two U-shaped hoses. This adjusts the thrust within the two first hydraulic rods, balancing the thrust between the second insertion rod and the first insertion rod, ensuring even force distribution on both sides of the second insertion rod. This allows the second insertion rod to be quickly removed from the first insertion rod. Attached Figure Description

[0030] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the left-side stereoscopic structure of the present invention;

[0032] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention;

[0033] Figure 4 This is a top view of the present invention;

[0034] Figure 5 for Figure 2 Enlarged 3D structural diagram of area A in the middle;

[0035] Figure 6 for Figure 2Enlarged 3D structural diagram of area B;

[0036] Figure 7 for Figure 3 Enlarged 3D structural diagram of area C;

[0037] Figure 8 for Figure 4 Enlarged 3D structural diagram of area D;

[0038] Figure 9 This is a schematic diagram of the internal cross-sectional structure of the circular female base on the left.

[0039] Figure 10 This is a perspective view of the gear ring in this invention;

[0040] Figure 11 This is a schematic diagram of the insertion structure of the first and second insertion rods in this invention.

[0041] In the picture:

[0042] 1. First connector rod; 2. Second connector rod;

[0043] 3. Circular female seat; 31. First hydraulic rod; 32. I-shaped block; 33. Cylinder; 34. Circular ring block; 35. Threaded pipe; 36. Connecting rod; 37. Circular cylinder; 38. First screw; 39. Round rod; 310. Pressure sensor; 311. Gear ring; 312. Triangular hole; 313. Gear; 314. U-shaped hose; 315. Motor; 316. Circular hole; 317. L-shaped seat.

[0044] 4. Support block; 41. Second screw; 42. L-shaped block; 43. Positioning rod; 44. Threaded hole; 45. Knob; 5. Round tube; 6. L-shaped hose; 7. Piston; 8. Second hydraulic rod; 9. U-shaped seat. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] For examples, please refer to Figure 1-11This invention provides a technical solution: a hydraulic cylinder disassembly and assembly device for inserting steel pipe rods. The disassembly and assembly device includes a separation mechanism, which includes two annular female seats 3, a first hydraulic rod 31, an I-shaped block 32, and a cylindrical cylinder 37. The left annular female seat 3 is filled with hydraulic oil. The two annular female seats 3 can be respectively fitted onto the outside of the two first insertion rods 1 and the second insertion rod 2 that need to be separated. The right side of the left annular female seat 3 is rotatably connected to two first hydraulic rods 31, and the left side of the right annular female seat 3 is rotatably connected to two cylindrical cylinders 37. The output end of the first hydraulic rod 31 is rotatably connected to the left side of the I-shaped block 32 through a hinge. The right inner wall of the I-shaped block 32 is rotatably connected to a cylinder 33 through a hinge. The outer side of the cylinder 33 is threaded with a threaded tube 35. The inner side of the cylindrical cylinder 37 is threaded with a connecting rod 36. The threaded tube 35 is threaded onto the outer side of the connecting rod 36 to achieve distance compensation during installation. The separation of the first insertion rod 1 and the second insertion rod 2 is achieved by pushing the first hydraulic rod 31.

[0047] In use, the two annular female seats 3 are passed through the right end of the second plug rod 2 and respectively fitted onto the outside of the first plug rod 1 and the second plug rod 2. When it is necessary to increase the distance between the two annular female seats 3 to match the first plug rod 1 and the second plug rod 2 of different lengths, the threaded tube 35 is rotated in the reverse direction. The threaded tube 35 rotates on the outside of the corresponding cylinder 33 and separates from the corresponding connecting rod 36. When it is necessary to remove the connecting rod 36 and replace it with a connecting rod 36 of other length specifications, the connecting rod 36 is rotated in the reverse direction to separate from the cylindrical cylinder 37. Then, the connecting rod 36 of other length specifications is rotated in the forward direction and threadedly connected to the cylindrical cylinder 37. The threaded tube 35 is rotated in the forward direction and threadedly fitted onto the outside of the connecting rod 36 of other length specifications, thereby increasing the distance between the two annular female seats 3 to match the first plug rod 1 and the second plug rod 2 of different lengths.

[0048] The two circular female seats 3 are fixed to the first plug-in rod 1 and the second plug-in rod 2 by a fixing mechanism;

[0049] The line connecting the rotation point of the first hydraulic rod 31 on the left annular seat 3 and the rotation point of the cylindrical cylinder 37 on the right annular seat 3 is L. The two hinge rotation points on the I-shaped block 32 are not on the line L, and the two hinge rotation points of the I-shaped block 32 are in the direction of the line L closer to the first insertion rod 1.

[0050] The present invention can achieve uniform pushing when the second plug rod 2 is pushed to separate from the first plug rod 1, prevent jamming caused by uneven force when the second plug rod 2 and the first plug rod 1 are separated, and increase the efficiency of the second plug rod 2 and the first plug rod 1.

[0051] In this invention, the line connecting the rotation point of the first hydraulic rod 31 on the left annular base 3 and the rotation point of the cylindrical cylinder 37 on the right annular base 3 is L. The two hinge rotation points on the I-shaped block 32 are not on the line L, but are located in the direction of the line L closer to the first plug rod 1. Under this configuration, when the thrust of the first hydraulic rod 31 acts on the second plug rod 2, the two thrust points on the second plug rod 2 have a force that moves outward from the second plug rod 2. This can reduce the contact area between the second plug rod 2 and the first plug rod 1 to a certain extent, thereby reducing the friction surface and facilitating quick separation.

[0052] Simultaneously, during the process of the first hydraulic rod 31 starting and driving the second connector 2 to separate from the first connector 1 through hydraulic thrust, the aforementioned setting of offsetting the I-shaped block 32 towards the connector direction allows a portion of the thrust of the first hydraulic rod 31 to be applied to the pressure sensor 310 through the first screw 38 and the round rod 39. This enables the detection of the thrust on both sides of the second connector 2 and the first connector 1. When the thrust on one side at the separation point of the first connector 1 and the second connector 2 is too large and the thrust on the other side is too small, the pressure applied by the two first hydraulic rods 31 to the two pressure sensors 310 will be inconsistent. This allows for timely adjustment of the thrust within the two first hydraulic rods 31, ensuring that the first hydraulic rod 31 can balance the thrust on both sides of the second connector 2 and the first connector 1 during operation. This ensures that the second connector 2 is subjected to uniform force on both sides and is pushed synchronously without jamming. It also allows for rapid separation of the two connectors 2 and the first connector 1 that are connected together, improving the efficiency of disassembly and assembly.

[0053] In this embodiment, specifically: a circular block 34 is slidably sleeved on the outer side of the cylinder 33, and an L-shaped seat 317 is fixedly connected to the bottom end of the circular block 34. The L-shaped seat 317 is rotatably connected to the circular ring female seat 3 on the left side by a hinge. A first screw 38 is fixedly connected to the side of the circular block 34 near the first plug rod 1. A round rod 39 is threaded on the outer side of the first screw 38. A pressure sensor 310 is fixedly connected to the end of the round rod 39 near the first plug rod 1. The pressure sensor 310 can fit against the surface of the first plug rod 1.

[0054] The pressure sensor 310 is installed as follows: Then rotate the round rod 39. The round rod 39 rotates on the outside of the corresponding first screw 38 and moves towards the first plug rod 1. The round rod 39 drives the corresponding pressure sensor 310 to move, and the outside of the pressure sensor 310 contacts the outside of the first plug rod 1.

[0055] In this embodiment, specifically: circular holes 316 are provided on the front inner wall and the rear inner wall of the left annular female seat 3. The oil inlet end of the first hydraulic rod 31 is connected to the circular hole 316 on the annular female seat 3 through a U-shaped hose 314. After the hydraulic oil pressure in the annular female seat 3 increases, the hydraulic oil in the annular female seat 3 can enter the first hydraulic rod 31 through the circular hole 316 and the U-shaped hose 314. The movable end of the first hydraulic rod 31 can move to the right, so that the two first plug rods 1 and the second plug rod 2 have a force of opposite movement.

[0056] The first hydraulic rod 31 operates as follows: when the second connector 2 needs to be removed from the outside of the first connector 1, the second hydraulic rod 8 is activated. The output end of the second hydraulic rod 8 drives the piston 7 to slide inside the circular tube 5 and drives the hydraulic oil in the left annular seat 3 to be discharged into the corresponding U-shaped hose 314 through the circular hole 316 and the triangular hole 312. The U-shaped hose 314 discharges the oil into the corresponding first hydraulic rod 31. As the oil in the first hydraulic rod 31 increases, the output end of the first hydraulic rod 31 drives the I-shaped block 32 to move to the right. The I-shaped block 32 drives the cylinder 33 to move to the right. The cylinder 33 slides inside the corresponding annular block 34. The cylinder 33 drives the connecting rod 36 to move to the right through the threaded tube 35. The connecting rod 36 moves to the right through the circular cylinder 37. The circular cylinder 37 drives the second connector 2 to move to the right.

[0057] In this embodiment, specifically: the disassembly and assembly device also includes a round tube 5, the right end of the round tube 5 is connected to the bottom of the annular female seat 3 and the same L-shaped hose 6 is fixed thereon, the left side of the round tube 5 is fixedly connected to a second hydraulic rod 8 through a U-shaped seat 9, the movable end of the second hydraulic rod 8 is fixedly connected to a piston 7, the piston 7 is slidably connected to the inside of the round tube 5, and the hydraulic oil in the round tube 5 is filled into the annular female seat 3 through the L-shaped hose 6 by the extension of the movable end of the second hydraulic rod 8, so as to increase the hydraulic oil pressure in the annular female seat 3;

[0058] In this embodiment, specifically: a gear ring 311 is rotatably fitted on the inner side of the left annular female seat 3. Triangular holes 312 are provided on both inner walls of the gear ring 311. The two triangular holes 312 are symmetrically arranged. A gear 313 meshes with the inner side of the gear ring 311. The gear 313 is driven to rotate by a motor 315. The oil in the annular female seat 3 can pass through the triangular holes 312 and the circular holes 316 to enter the corresponding U-shaped hose 314. As the gear ring 311 rotates, it drives the two triangular holes 312 to rotate. The overlapping area of ​​the two triangular holes 312 and the corresponding circular holes 316 changes. When the overlapping area of ​​one triangular hole 312 and the corresponding circular hole 316 increases, the overlapping area of ​​the other triangular hole 312 and the corresponding circular hole 316 decreases, thereby changing the oil inlet area of ​​the input ends of the two first hydraulic rods 31.

[0059] When the motor 315 is started, it drives the gear 313 to rotate, which in turn drives the gear ring 311 to rotate. As the gear ring 311 rotates, it drives the two triangular holes 312 to rotate. The overlapping areas of the two triangular holes 312 and the two circular holes 316 caused by the gear ring 311 are different, resulting in different amounts of oil in the annular female seat 3 passing through the triangular holes 312 into the two circular holes 316. This causes different amounts of oil to enter the two first hydraulic rods 31 through the two U-shaped hoses 314, thereby adjusting the thrust in the two first hydraulic rods 31. This balances the thrust between the second plug rod 2 and the first plug rod 1, making the force on both sides of the second plug rod 2 uniform, thus allowing the second plug rod 2 to be quickly removed from the first plug rod 1.

[0060] In this embodiment, specifically: the fixing mechanism includes a support block 4 and an L-shaped block 42. The support block 4 is fixedly installed on the outside of the corresponding annular female seat 3. The two corresponding support blocks 4 are rotatably connected to the side of each other, and the L-shaped block 42 is threaded on the outside of the corresponding second screw 41.

[0061] In this embodiment, specifically: two positioning rods 43 are fixedly connected to the side of the two corresponding support blocks 4 that are close to each other, and the L-shaped block 42 is slidably sleeved on the outside of the two corresponding positioning rods 43.

[0062] In this embodiment, specifically: threaded holes 44 are provided on the side of the two corresponding L-shaped blocks 42 that are close to each other, and a knob 45 is fixedly connected to the end of the second screw 41;

[0063] The present invention fixes the annular female seat 3 to the first plug rod 1 and the second plug rod 2 by drilling holes on the outside of the first plug rod 1 and the second plug rod 2 with an external tool, so that the position of the drilled hole is aligned with the corresponding threaded hole 44. Rotating the knob 45 causes the corresponding second screw 41 to rotate, and the rotation of the second screw 41 causes the corresponding L-shaped block 42 to move. The L-shaped block 42 slides on the outside of the corresponding two positioning rods 43. The two L-shaped blocks 42 are respectively attached to the outside of the first plug rod 1 and the second plug rod 2. The L-shaped blocks 42 are fixed by external bolts passing through the corresponding threaded hole 44 and the drilled hole, so that the two annular female seats 3 are respectively fixed on the outside of the first plug rod 1 and the second plug rod 2.

[0064] In this embodiment, specifically: the motor 315 is fixed on the top of one of the support blocks 4, the output shaft end of the motor 315 extends into a circular female seat 3 on the left and is fixed to the left side of the gear 313, and the circular female seat 3 on the left is rotatably sleeved on the outside of the output shaft of the motor 315 through a sealed bearing.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder assembly / disassembly device for inserting and connecting steel pipe rods, characterized in that: The disassembly and assembly device includes a separation mechanism, which includes two annular female seats (3), a first hydraulic rod (31), an I-shaped block (32), and a cylindrical cylinder (37). The left annular female seat (3) is filled with hydraulic oil. The two annular female seats (3) can be respectively fitted onto the outside of the two first plug-in rods (1) and the second plug-in rods (2) that need to be separated. The right side of the left annular female seat (3) is rotatably connected to two first hydraulic rods (31), and the left side of the right annular female seat (3) is rotatably connected to two cylindrical cylinders (37). The output end of the rod (31) is rotatably connected to the left side of the I-shaped block (32) via a hinge. The inner wall of the right side of the I-shaped block (32) is rotatably connected to a cylinder (33) via a hinge. The outer side of the cylinder (33) is threaded with a threaded tube (35). The inner side of the cylindrical tube (37) is threaded with a connecting rod (36). The threaded tube (35) is threaded on the outer side of the connecting rod (36) to achieve distance compensation during installation. The first plug rod (1) and the second plug rod (2) are separated by pushing the first hydraulic rod (31). Two circular female seats (3) are fixed to the first plug rod (1) and the second plug rod (2) by a fixing mechanism; The line connecting the rotation point of the first hydraulic rod (31) on the left annular seat (3) and the rotation point of the cylindrical tube (37) on the right annular seat (3) is L. The two hinge rotation points on the I-shaped block (32) are not on the line L. The two hinge rotation points of the I-shaped block (32) are in the direction of the line L close to the first plug rod (1).

2. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 1, characterized in that: A circular block (34) is slidably sleeved on the outer side of the cylinder (33). An L-shaped seat (317) is fixedly connected to the bottom end of the circular block (34). The L-shaped seat (317) is rotatably connected to the circular ring female seat (3) on the left side by a hinge. A first screw (38) is fixedly connected to the side of the circular block (34) near the first plug rod (1). A round rod (39) is threaded on the outer side of the first screw (38). A pressure sensor (310) is fixedly connected to the end of the round rod (39) near the first plug rod (1). The pressure sensor (310) can fit against the surface of the first plug rod (1).

3. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 2, characterized in that: Circular holes (316) are opened on the front inner wall and the rear inner wall of the circular female seat (3) on the left side. The oil inlet end of the first hydraulic rod (31) is connected to the circular hole (316) on the circular female seat (3) through the U-shaped hose (314). After the hydraulic oil pressure in the circular female seat (3) increases, the hydraulic oil in the circular female seat (3) can enter the first hydraulic rod (31) through the circular hole (316) and the U-shaped hose (314). The movable end of the first hydraulic rod (31) can move to the right, so that the two first plug rods (1) and the second plug rod (2) have a force of opposite movement.

4. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 3, characterized in that: The disassembly and assembly device also includes a round tube (5), the right end of which is connected to the bottom of the annular female seat (3) and is fixed with the same L-shaped hose (6). The left side of the round tube (5) is fixedly connected to a second hydraulic rod (8) through a U-shaped seat (9). The movable end of the second hydraulic rod (8) is fixedly connected to a piston (7). The piston (7) is slidably connected to the inside of the round tube (5). The hydraulic oil in the round tube (5) is filled into the annular female seat (3) through the L-shaped hose (6) by the extension of the movable end of the second hydraulic rod (8), thereby increasing the hydraulic oil pressure in the annular female seat (3).

5. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 4, characterized in that: A gear ring (311) is rotatably fitted on the inner side of the circular female seat (3) on the left. Triangular holes (312) are opened on both sides of the inner wall of the gear ring (311). The two triangular holes (312) are symmetrically arranged. A gear (313) meshes on the inner side of the gear ring (311). The gear (313) is driven to rotate by a motor (315). The oil in the circular female seat (3) can pass through the triangular holes (312) and the circular holes (316) and enter the corresponding U-shaped hose (314). As the gear ring (311) rotates, it drives the two triangular holes (312) to rotate. The overlapping area of ​​the two triangular holes (312) and the corresponding circular holes (316) changes. When the overlapping area of ​​one triangular hole (312) and the corresponding circular hole (316) increases, the overlapping area of ​​the other triangular hole (312) and the corresponding circular hole (316) decreases, thereby changing the oil inlet area of ​​the input end of the two first hydraulic rods (31).

6. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 5, characterized in that: The fixing mechanism includes a support block (4) and an L-shaped block (42). The support block (4) is fixedly installed on the outside of the corresponding annular female seat (3). The two corresponding support blocks (4) are rotatably connected to a second screw (41) on the side that is close to each other. The L-shaped block (42) is threaded on the outside of the corresponding second screw (41).

7. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 6, characterized in that: Two positioning rods (43) are fixedly connected to the side of the two corresponding support blocks (4) that are close to each other, and the L-shaped block (42) is slidably sleeved on the outside of the two corresponding positioning rods (43).

8. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 7, characterized in that: The two L-shaped blocks (42) are respectively provided with threaded holes (44) on the side that are close to each other, and the end of the second screw (41) is fixedly connected with a knob (45).

9. The hydraulic cylinder assembly / disassembly device for inserting steel pipe rods according to claim 8, characterized in that: The motor (315) is fixed on the top of one of the support blocks (4), and the output shaft end of the motor (315) extends into a ring seat (3) on the left and is fixed to the left side of the gear (313). The ring seat (3) on the left is rotatably sleeved on the outside of the output shaft of the motor (315) by a sealed bearing.

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