A steel pipe piercing apparatus

By designing steel pipe piercing equipment and combining coolant immersion and spraying, the problem of low cooling efficiency of steel pipes was solved, achieving uniform heat dissipation inside and outside the steel pipe, avoiding cracks and improving the quality of the steel pipe.

CN118404386BActive Publication Date: 2026-06-09ZHEJIANG ZHENGLI STAINLESS STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG ZHENGLI STAINLESS STEEL CO LTD
Filing Date
2024-05-31
Publication Date
2026-06-09

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Abstract

The application relates to a steel pipe perforating processing equipment, and relates to the field of steel pipe processing, which comprises a perforating device, a blanking device and a cooling pool, the perforating device is used for processing pipe holes, the blanking device is connected with the perforating device and the cooling pool, and the cooling pool is used for containing cooling liquid, and the cooling liquid in the cooling pool can immerse the steel pipe. The steel pipe is rapidly cooled by the cooling liquid in the cooling pool, and the cooling efficiency of the steel pipe is improved.
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Description

Technical Field

[0001] This application relates to the field of steel pipe processing, and in particular to a steel pipe piercing processing device. Background Technology

[0002] A steel pipe is a type of steel with a hollow cross-section, whose length is much greater than its diameter or circumference. Seamless steel pipe is a type of steel pipe that has holes machined into it using piercing equipment.

[0003] After the steel pipe is processed, the temperature is relatively high. In related technologies, in order to cool the steel pipe evenly and prevent cracks from appearing on the surface of the steel pipe, some steel pipes are cooled naturally. However, the efficiency of natural cooling is low, which affects the subsequent processing of the steel pipe and needs to be improved. Summary of the Invention

[0004] In order to improve the cooling efficiency after steel pipe piercing, this application provides a steel pipe piercing processing equipment.

[0005] A steel pipe piercing processing equipment includes a piercing device, a feeding device, and a cooling tank. The piercing device is used to process pipe holes. The feeding device is connected to the piercing device and the cooling tank. The cooling tank is used to hold coolant, and the coolant in the cooling tank can submerge the steel pipe.

[0006] By adopting the above technical solution, in the actual processing, the steel pipe is pierced by the piercing device. After piercing, the steel pipe moves along the feeding device to the cooling pool and enters the cooling pool. The coolant in the cooling pool submerges the steel pipe and quickly cools it down, which helps to improve the cooling efficiency of the steel pipe.

[0007] Preferably, the unloading device includes an unloading frame, a slide block slidably connected to the unloading frame, and a support frame slidably connected to the slide block. The slide block slides along the unloading frame toward or away from the cooling pool, and the support frame slides into or protrudes from the unloading frame. A driving component is provided on the slide block, which drives the support frame to move. A spraying assembly is provided on the slide block, which is used to spray coolant onto the steel pipe.

[0008] By adopting the above technical solution, after the steel pipe is pierced, it is moved to the support frame to support the steel pipe. The sliding block moves and drives the steel pipe to the cooling pool. During the process of the steel pipe moving from the piercing device to the cooling pool, the spraying component moves with the sliding block, thereby continuously spraying coolant onto the steel pipe. This cools the steel pipe during the unloading process and helps to improve the cooling efficiency of the steel pipe.

[0009] Preferably, the slide is provided with a spraying mechanism for spraying coolant into the pipe hole.

[0010] By adopting the above technical solution, as the steel pipe moves closer to the cooling pool, the spray assembly and spray mechanism simultaneously cool the inside and outside of the steel pipe, making the steel pipe dissipate heat evenly inside and outside, making the steel pipe less prone to breakage, and thus improving the quality of the steel pipe.

[0011] Preferably, the spraying mechanism includes a fan mounted on the slide and a sprayer mounted on the slide, both the fan and the sprayer being located on the extension path of the pipe hole, with the fan supplying air to the sprayer.

[0012] By adopting the above technical solution, during the spraying process, the fan blows the water mist generated by the sprayer into the steel pipe hole, which is conducive to the uniform distribution of water mist at the end and inside of the pipe hole and improves the heat dissipation efficiency of the steel pipe.

[0013] Preferably, the unloading rack is located above the cooling pool, and both the spray assembly and the spray mechanism are provided with connecting pipes. The connecting pipes are connected to the cooling pool, and the connecting pipes are provided with a second driving component, which is used to pump water from the cooling pool into the connecting pipes.

[0014] By adopting the above technical solution, in actual use, the second drive unit draws the cooling water from the cooling pool to the connecting pipe. The cooling water then enters the spraying mechanism and spray assembly along the connecting pipe, and is sprayed out from the spraying mechanism and spray assembly to initially cool the steel pipe. The sprayed cooling water then flows back into the cooling pool. This helps improve the utilization rate of the coolant. The second drive unit drives the cooling water flow, which helps improve the heat dissipation efficiency of the cooling water and the cooling pool.

[0015] Preferably, there are several spraying mechanisms located at opposite ends of the steel pipe.

[0016] By adopting the above technical solution, and by setting several spraying mechanisms at both ends of the steel pipe, the spraying mechanisms can spray evenly from both ends of the pipe hole into the pipe hole, which is conducive to the uniform distribution of water mist in the pipe hole and the uniform heat dissipation of the inner wall of the pipe hole.

[0017] Preferably, the unloading rack is inclined, and the unloading rack is inclined downward along the direction close to the cooling pool. The unloading rack is provided with a pressing block, and the first driving component is provided with a pressing switch. The pressing switch is used to control the operation of the first driving component. When the pressing switch is pressed, the piston rod of the first driving component retracts. When the pressing switch is released, the piston rod of the first driving component extends. The pressing block is located in the moving direction of the pressing switch.

[0018] By adopting the above technical solution, in actual use, the steel pipe moves the slide towards the cooling pool under the action of gravity. The first drive component moves closer to the pressing block as the slide moves. When the slide moves the first drive component to the pressing switch, the pressing block presses the pressing switch, causing the piston rod of the first drive component to retract, thereby driving the support frame to move and extend into the unloading frame, so that the support frame is separated from the steel pipe. This makes it easier for the steel pipe to move away from the support frame and enter the cooling pool for cooling, which is beneficial to improving the automation rate.

[0019] Preferably, a pulley is rotatably connected to the unloading frame, a connecting rope is provided on the slide block, the connecting rope is sleeved on the pulley, a driving block is provided on the connecting rope, the driving block and the slide block are respectively located on both sides of the pulley, the weight of the driving block is greater than the sum of the weights of the slide block, the first driving component and the support frame, and the difference between the weight of the driving block and the weights of the slide block, the first driving component and the support frame is less than the weight of the steel pipe.

[0020] By adopting the above technical solution, in actual use, when the steel pipe is supported on the support frame, the weight on the slide is greater than the weight of the drive block, causing the slide to move along the unloading frame towards the cooling pool. When the steel pipe detaches from the support frame, the weight above the slide decreases, becoming less than the weight of the drive block. The drive block then moves the slide away from the cooling pool to reset. This makes resetting the slide convenient and facilitates unloading the next steel pipe.

[0021] Preferably, a plurality of rolling elements are rotatably connected to the support frame, and the plurality of rolling elements and the unloading frame are used to abut against the steel pipe.

[0022] By adopting the above technical solution, in actual use, the rolling element abuts against the steel pipe, reducing the friction between the steel pipe and the support frame, making it easier for the steel pipe to rotate during movement, and allowing the cooling water sprayed from the sprayer to be evenly sprayed on the surface of the steel pipe, which is conducive to uniform heat dissipation on the surface of the steel pipe and less prone to cracking.

[0023] In summary, this application includes at least one of the following technical effects:

[0024] 1. Immersing the steel pipe in the cooling pool with coolant rapidly cools the steel pipe, which helps to improve the cooling efficiency of the steel pipe.

[0025] 2. The spray assembly and spray mechanism cool the inside and outside of the steel pipe simultaneously, so that the steel pipe dissipates heat evenly inside and outside, making the steel pipe less prone to breakage and improving the quality of the steel pipe.

[0026] 3. By using rolling elements to abut against the steel pipe, the friction between the steel pipe and the support frame is reduced, making it easier for the steel pipe to rotate during movement. This allows the cooling water sprayed from the sprayer to be evenly sprayed onto the surface of the steel pipe, which is beneficial for uniform heat dissipation and reduces the likelihood of cracks. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a partial structural diagram of this embodiment, mainly showing the structure of the feeding device.

[0029] Figure 3 for Figure 2 The enlarged view of section A mainly shows the structure of the support frame.

[0030] Figure 4 This is a partial cross-sectional view of the support base in this embodiment, mainly showing the internal structure of the support frame.

[0031] Figure 5 for Figure 1 The enlarged view of section B mainly shows the spray mechanism.

[0032] Explanation of reference numerals in the attached drawings: 1. Perforation device; 11. Power component one; 12. Power component two; 13. Output shaft; 2. Feeding device; 21. Feeding rack; 211. Frame; 2111. Guide surface; 2112. Pulley; 2113. Pressing block; 22. Slide seat; 221. Drive component one; 2211. Press switch; 222. Connecting rope; 223. Drive block; 2231. Counterweight block; 23. Support frame; 3. Cooling pool; 4. Spray assembly; 41. Spray frame; 42. Spray head; 5. Spraying mechanism; 51. Fan; 52. Sprayer; 53. Connecting pipe; 54. Drive component two; 541. Water pump; 6. Rolling component; 61. Support seat; 62. Roller; 63. Thermal expansion and contraction block; 64. Elastic component. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a steel pipe piercing processing device. (Refer to...) Figure 1 and Figure 2 A steel pipe piercing processing equipment includes a piercing device 1, a feeding device 2, and a cooling pool 3. The piercing device 1 is located on one side of the feeding device 2 distributed in a horizontal direction, and the cooling pool 3 is located below the feeding device 2. Part of the feeding device 2 extends into the cooling pool 3. The piercing device 1 is used to pierce the steel to process it into a steel pipe. The feeding device 2 is used to receive the pierced steel pipe and transport it to the cooling pool 3. The cooling pool 3 contains a coolant, which is used to cool the steel pipe. The coolant in the cooling pool 3 can immerse the steel pipe.

[0035] During the actual installation process, a transport mechanism is installed inside the cooling pool 3. The transport mechanism is used to transport the steel pipes out of the cooling pool 3. The transport devices include belt conveyors, roller conveyors, etc.

[0036] Reference Figure 1 The piercing device 1 includes a power component 11, a power component 2 12, and an output shaft 13. The power components 11 and 2 12 are located on opposite sides of the output shaft 13. Both the power components 11 and 2 12 are equipped with universal connectors and are connected to the output shaft 13 via the universal connectors. Drill bits are mounted on the power components 11 and 2 12. The power components 11 and 2 12 drive the drill bits to extend into the output shaft 13. The output shaft 13 is used to position the steel to be processed. The drill bits move and extend into the output shaft 13 to pierce the steel.

[0037] Reference Figure 1 The feeding device 2 includes a feeding frame 21, a slide 22 and a support frame 23. The feeding frame 21 includes several frames 211. The frames 211 are evenly distributed at equal intervals along the distribution direction parallel to the distribution direction of the first power component 11 and the second power component 12. The projection of the frames 211 in the vertical direction is located in the cooling pool 3. The upper end surface of the frame 211 is machined to form a guide surface 2111. The guide surface 2111 is inclined downward in the direction away from the output shaft 13.

[0038] Reference Figure 1 and Figure 2 The slide block 22 is slidably connected to the unloading rack 21. The slide block 22 is located below the guide surface 2111. The sliding direction of the slide block 22 is consistent with the inclination direction of the guide surface 2111. The length direction of the slide block 22 is parallel to the distribution direction of the frame 211. The slide block 22 is slidably connected to several frames 211. The slide block 22 slides closer to or further away from the cooling pool 3. In actual use, the slide block 22 is always located above the surface of the cooling water.

[0039] Reference Figure 2 and Figure 3There are several support frames 23, and the distribution direction of the several support frames 23 is parallel to the distribution direction of the frame body 211. The support frames 23 are located between adjacent frame bodies 211. The several support frames 23 are slidably connected to the slide seat 22. The sliding direction of the several support frames 23 is perpendicular to the inclination direction of the guide surface 2111 and the distribution direction of the frame body 211. The support frames 23 slide into or out of the adjacent frame body 211. When the support frame 23 slides into the adjacent frame body 211, the support frame 23 is located below the guide surface 2111; when the support frame 23 slides out of the adjacent frame body 211, the support frame 23 is located above the guide surface 2111. Several driving components 221 are fixed on the slide block 22. The position and number of driving components 221 correspond one-to-one with the position and number of support frames 23. The driving components 221 are located below the support frames 23. The piston rod of the driving component 221 is fixedly connected to the support frame 23. When the piston rod of the driving component 221 extends, it causes the support frame 23 to move and extend out of the adjacent frame 211. When the piston rod of the driving component 221 retracts, it causes the support frame 23 to move and extend into the adjacent frame 211. When the support frame 23 extends out of the adjacent frame 211, the angle formed by the splicing of the support frame 23 and the guide surface 2111 is a right angle.

[0040] A number of rolling elements 6 are rotatably connected to the support frame 23. The distribution direction of the rolling elements 6 is parallel to the distribution direction of the frame 211. The rotation axis of the rolling elements 6 is parallel to the distribution direction of the frame 211. The end of the rolling element 6 near the output shaft 13 protrudes from the support frame 23 in the direction close to the output shaft 13. The rolling element 6 is used to support the steel pipe.

[0041] Reference Figure 3 and Figure 4 The rolling element 6 includes a support base 61 and a roller 62. The support base 61 is slidably connected to the support frame 23, and the sliding direction of the support base 61 is parallel to the inclination direction of the guide surface 2111. The roller 62 is rotatably connected to the support base 61 and is rotatably connected to the support frame 23 through the support base 61. The roller 62 is used to support the steel pipe. Several thermal expansion and contraction blocks 63 are fixed on the support frame 23. The position and number of thermal expansion and contraction blocks 63 correspond one-to-one with the position and number of support bases 61. The thermal expansion and contraction blocks 63 are located below the corresponding support bases 61. An elastic element 64 is fixed on the thermal expansion and contraction block 63. The elastic element 64 is located on the side of the thermal expansion and contraction block closer to the support base 61. The elastic element 64 presses against the support base 61, causing the support base 61 to tend to move away from the thermal expansion and contraction block 63. When the steel pipe is on the unloading rack 21, the temperature rise at the support frame 23 causes the thermal expansion and contraction block 63 to expand, which intensifies the deformation of the elastic element 64. This helps to improve the buffering force on the high-temperature steel pipe, reduce the collision force between the steel pipe and the roller 62, and make the steel pipe less prone to deformation.

[0042] Reference Figure 2A pulley 2112 is rotatably connected to the frame 211. The pulley 2112 is located on the side of the slide block 22 near the output shaft 13. The position and number of pulleys 2112 correspond one-to-one with the position and number of the frame 211. The rotation axis of the pulleys 2112 is parallel to the distribution direction of the frame 211. The distribution direction of the pulleys 2112 and the slide block 22 is parallel to the inclination direction of the guide surface 2111. The slide block 22 slides closer to or away from the pulley 2112. Several connecting ropes 222 are fixed on the slide block 22, connecting... The position and number of ropes 222 correspond one-to-one with the position and number of pulleys 2112. A drive block 223 is fixed on the connecting rope 222. The drive block 223 includes several counterweights 2231. The position and number of counterweights 2231 correspond one-to-one with the position and number of connecting ropes 222. The counterweights 2231 are located on the side of the corresponding connecting rope 222 away from the slide block 22. The connecting rope 222 is arranged around the outer periphery of the corresponding pulley 2112. The slide block 22 and the counterweights 2231 are located on both sides of the pulley 2112. The sum of the weights of the counterweights 2231 is greater than the component forces of the slide 22, the driving components 221, and the support frames 23 in the direction parallel to the distribution of the pulleys 2112 and the slide 22. The difference between the weights of the counterweights 2231 and the component forces of the slide 22, the driving components 221, and the support frames 23 in the direction parallel to the distribution of the pulleys 2112 and the slide 22 is less than the component force of the weight of the steel pipe. When the steel pipe is supported on the support frame 23, the slide 22 moves downward along the guide surface 2111.

[0043] Reference Figure 2 and Figure 3 A push switch 2211 is installed on the drive component 221. The push switch 2211 is located on the side of the drive component 221 away from the output shaft 13. The push switch 2211 is used to control the retraction of the piston rod of the drive component 221. When the push switch 2211 is pressed, the push switch 2211 controls the piston rod of the drive component 221 to retract; when the push switch 2211 is released, the push switch 2211 controls the piston rod of the drive component 221 to extend. Several pressing blocks 2113 are fixed on the unloading rack 21. The positions of the pressing blocks 2113 are... The number and position of each pressing block 2113 correspond one-to-one with the position and number of the driving component 221. The pressing block 2113 is located on the side of the corresponding driving component 221 away from the output shaft 13, and is positioned on the movement path of the corresponding driving component 221. The pressing block 2113 is used to press the pressing switch 2211, causing the pressing switch 2211 to control the piston rod of the driving component 221 to retract, driving the support frame 23 to move below the guide surface 2111, allowing the steel pipe to detach from the support frame 23 and enter the cooling pool 3. All pressing blocks 2113 are located above the coolant surface. In this embodiment, the driving component 221 is a hydraulic cylinder; in other embodiments, the driving component 221 can also be a hydraulic cylinder.

[0044] In actual use, the processed steel pipe enters the unloading rack 21 from the output shaft 13. The unloading rack 21 and the rolling element 6 abut against the steel pipe to support it. When the steel pipe abuts against the support frame 23, the support frame 23 moves away from the output shaft 13, thereby driving the steel pipe to move closer to the cooling pool 3. The movement of the support frame 23 drives the slide 22 and the drive element 221 to move closer to the pressing block 2113. When the pressing block 2113 presses the corresponding pressing switch 2211, the steel pipe is separated from the support frame 23, making it easier for the steel pipe to be immersed in the cooling pool 3.

[0045] Reference Figure 2 A spray assembly 4 is fixed on the slide. The spray assembly 4 includes a spray frame 41 and several spray heads 42. The spray frame 41 is fixed on the slide and is located above the slide. The spray frame 41 is vertically arranged. The length of the spray frame 41 in the direction parallel to the distribution of the unloading rack 21 is greater than the length of the steel pipe. The distribution direction of the several spray heads 42 is parallel to the distribution direction of the unloading rack 21. The several spray heads 42 are located above the slide block 22 and are fixedly connected to the spray frame 41. When the steel pipe abuts against the rolling element 6, the spray heads 42 are located above the steel pipe. The spray heads 42 are used to spray coolant to cool the steel pipe.

[0046] Reference Figure 2 and Figure 5 Several spraying mechanisms 5 are fixed on the slide. There are two spraying mechanisms 5, which are located on opposite sides of the frame 211. The vertical projection of several unloading racks 21 is located between the two spraying mechanisms 5. The spraying mechanism 5 includes a fan 51 and a sprayer 52. The fan 51 and the sprayer 52 are located above the slide. The distribution direction of the fan 51 and the sprayer 52 is parallel to the distribution direction of the unloading racks 21. The sprayer 52 is located on the side of the fan 51 that is closer to the unloading rack 21. Both the sprayer 52 and the fan 51 are fixedly connected to the slide. The air outlet of the fan 51 faces the sprayer 52. The fan 51 and the sprayer 52 are located in the extension direction of the pipe hole. The fan 51 introduces air into the sprayer 52, so that the water mist sprayed by the sprayer 52 enters the pipe hole to cool the pipe hole. This facilitates simultaneous cooling of the inside and outside of the steel pipe, making the steel pipe less prone to cracking.

[0047] Reference Figure 1 and Figure 5Both the sprayer 52 and the spray frame 41 are fixedly connected to a connecting pipe 53, which connects the sprayer 52 and the spray frame 41 to the cooling pool 3. A second driving component 54 is fixed to the connection, which is a water pump 541. The water pump 541 is used to pump the coolant in the cooling pool 3 into the sprayer 52 and the spray frame 41, and spray it out from the sprayer 52 and the spray head 42. The sprayed coolant cools the steel pipe and then returns to the cooling pool 3 below, which facilitates the circulation and heat dissipation of the cooling water in the cooling pool 3. This is beneficial to improving the heat dissipation efficiency of the coolant in the cooling pool 3, and thus improving the heat dissipation efficiency of the steel pipe entering the cooling pool 3. When the steel pipe moves, the steel pipe rotates around its own axis, and the slide 22 drives the spray frame 41 to move synchronously with the steel pipe, so that the spray head 42 is always above the steel pipe to cool the steel pipe.

[0048] The implementation principle of the steel pipe piercing processing equipment in this application embodiment is as follows: In actual use, the steel is fixed on the output shaft 13. Power component 11 and power component 2 12 drive the drill bit to process a hole in the steel. After piercing, the steel pipe moves to the unloading rack 21 and abuts against the rolling wheel, driving the slide 22, support frame 23, and drive component 221 towards the cooling pool 3. As the steel pipe rolls closer to the cooling pool 3, the spray head 42 and sprayer 52 cool the inside and outside of the steel pipe respectively. When the pressing block 2113 presses the pressing switch 2211, the steel pipe moves into the cooling pool 3 for rapid cooling, which helps improve the cooling efficiency of the steel pipe. Furthermore, pre-cooling the steel pipe before it falls into the cooling pool 3 helps reduce the possibility of cracks appearing in the steel pipe due to excessively rapid temperature drops.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel pipe piercing processing equipment, characterized in that: The device includes a piercing device (1), a feeding device (2), and a cooling pool (3). The piercing device (1) is used to process pipe holes. The feeding device (2) connects the piercing device (1) and the cooling pool (3). The cooling pool (3) is used to hold coolant, and the coolant in the cooling pool (3) can submerge the steel pipe. The feeding device (2) includes a feeding frame (21), a slide (22) slidably connected to the feeding frame (21), and a slide connected to the slide. The support frame (23) on the slide (22) slides along the unloading frame (21) to approach or move away from the cooling pool (3), the support frame (23) slides into or protrudes from the unloading frame (21), the slide (22) is provided with a driving component (221), the driving component (221) drives the support frame (23) to move, the slide (22) is provided with a spray assembly (4), the spray assembly (4) is used to spray coolant onto the steel pipe.

2. The steel pipe piercing processing equipment according to claim 1, characterized in that: The slide (22) is provided with a spray mechanism (5), which is used to spray coolant into the pipe hole.

3. The steel pipe piercing processing equipment according to claim 2, characterized in that: The spraying mechanism (5) includes a fan (51) mounted on the slide (22) and a sprayer (52) mounted on the slide (22). The fan (51) and the sprayer (52) are both located in the extension direction of the pipe hole, and the fan (51) supplies air to the sprayer (52).

4. The steel pipe piercing processing equipment according to claim 2, characterized in that: The unloading rack (21) is located above the cooling pool (3). Both the spray assembly (4) and the spray mechanism (5) are equipped with connecting pipes (53). The connecting pipes (53) are connected to the cooling pool (3). The connecting pipes (53) are equipped with a second driving component (54). The second driving component (54) is used to pump the water pump (541) in the cooling pool (3) into the connecting pipes (53).

5. The steel pipe piercing processing equipment according to claim 3, characterized in that: There are several spraying mechanisms (5), and the spraying mechanisms (5) are located at opposite ends of the steel pipe.

6. The steel pipe piercing processing equipment according to claim 1, characterized in that: The unloading rack (21) is inclined downward along the direction close to the cooling pool (3). The unloading rack (21) is provided with a pressing block (2113). The drive component (221) is provided with a pressing switch (2211). The pressing switch (2211) is used to control the operation of the drive component (221). When the pressing switch (2211) is pressed, the piston rod of the drive component (221) retracts. When the pressing switch (2211) is released, the piston rod of the drive component (221) extends. The pressing block (2113) is located on the moving path of the pressing switch (2211).

7. The steel pipe piercing processing equipment according to claim 6, characterized in that: The unloading rack (21) is rotatably connected to a pulley (2112). The slide block (22) is provided with a connecting rope. The connecting rope (222) is sleeved on the pulley (2112). The connecting rope (222) is provided with a driving block (223). The driving block (223) and the slide block (22) are located on both sides of the pulley (2112). The weight of the driving block (223) is greater than the sum of the weights of the slide block (22), the first driving component (221), and the support frame (23). The difference between the weight of the driving block (223) and the weights of the slide block (22), the first driving component (221), and the support frame (23) is less than the weight of the steel pipe.

8. The steel pipe piercing processing equipment according to claim 1, characterized in that: The support frame (23) is rotatably connected to a number of rolling elements (6), and the rolling elements (6) and the unloading frame (21) are used to abut against the steel pipe.