A bearing steel pipe conveying device

Abstract

The present invention discloses a bearing steel pipe conveying device, which belongs to the field of steel pipe conveying, and includes a steel pipe conveying platform, a perforated conveying unit is arranged on the top of the steel pipe conveying platform, which is used to carry out transverse conveying of the perforated bearing steel pipe and to clean the waste on the surface of the perforated bearing steel pipe, and an interval conveying unit is arranged on the top of the steel pipe conveying platform, which is used to protect and collect the bearing steel pipes during the cooling process and to push the bearing steel pipes at intervals after cooling. When the bearing steel pipe moves to the outside of the perforated cleaning rod, the present invention cleans the waste on the inner wall of the rotating steel pipe by a cleaning brush, and cleans the waste attached to the outer surface of the bearing steel pipe by a conveying motor and a conveying roller shaft and a driven roller shaft driven by the cleaning motor. When the bearing steel pipe rolls down along the steel pipe conveying platform, the bearing steel pipe is blocked by a more stable interval protection strip on the front side, and an interval protection mechanism is arranged for the bearing steel pipe to avoid the steel pipe deformation caused by direct collision before the temperature is completely reduced.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe transportation, and in particular to a bearing steel pipe transportation device. Background Art

[0002] Bearing steel pipe refers to hot-rolled or cold-rolled seamless steel pipe. Since the bearing needs to withstand greater pressure and friction when working, the bearing steel pipe is required to have higher hardness, wear resistance and elastic limit.

[0003] During the process of perforating the bearing steel to make the bearing steel tube, the bearing steel tube needs to be heated and shaped. When it is transported after heating and shaping, due to the lack of an isolation device, it is easy for the steel tube that has not been completely dissipated to collide and deform. In addition, during the heating and shaping process, there are waste chips on the inner and outer surfaces of the steel tube. The waste chips adhering to the surface need to be processed to avoid the waste chips from hot melting and bonding to the surface of the steel tube during the subsequent heat treatment of the bearing steel tube, thereby reducing the processing qualification rate of the bearing steel tube.

[0004] Therefore, a bearing steel pipe conveying device is now proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art of the existence of waste chips in the perforation and shaping process of bearing steel tubes, which easily affect the subsequent processing process and the deformation of the steel tubes due to direct collision before the heat is completely dissipated, and to propose a bearing steel tube conveying device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A bearing steel pipe conveying device, comprising a steel pipe conveying platform for perforating the bearing steel pipe, a perforation conveying unit is arranged on the top of the steel pipe conveying platform, the perforation conveying unit is composed of a cooling conveying mechanism and a perforation cleaning mechanism, the cooling conveying mechanism is used to carry out transverse conveying of the perforated bearing steel pipe, and the perforation cleaning mechanism is used to clean the waste chips on the surface of the perforated bearing steel pipe;

[0008] An interval conveying unit is arranged on the top of the steel pipe conveying platform, and the interval conveying unit is composed of an interval protection mechanism and an interval pushing mechanism. The interval protection mechanism is used to protect and collect the bearing steel pipes during the cooling process, and the interval pushing mechanism is used to push the bearing steel pipes at intervals after cooling.

[0009] Preferably, the cooling conveying mechanism includes a conveying servo motor group arranged on the top of the steel pipe conveying platform, and the conveying servo motor group is composed of a conveying motor and a cleaning motor with opposite rotation directions, and the output shafts of the conveying motor and the cleaning motor are both fixed with conveying rollers.

[0010] Preferably, the outer surface of the conveying roller is in contact with a driven roller, and the outer surfaces of the conveying roller and the driven roller are both provided with obliquely arranged conveying strip grooves.

[0011] Preferably, the perforation cleaning mechanism comprises a perforation cleaning rod sliding on the top of the steel pipe conveying platform, a sealing buffer sleeve is sleeved on the right side of the perforation cleaning rod, and a buffer assembly for limiting the sliding of the perforation cleaning rod is arranged in the sealing buffer sleeve.

[0012] Preferably, a cleaning brush is provided on the outer surface of the perforated cleaning rod, and the perforated cleaning rod is slidably connected to the sealing buffer sleeve via an angle limiting strip.

[0013] Preferably, the spacing protection mechanism includes a spacing protection bracket arranged on the top of the steel pipe conveying platform, the inner wall of the spacing protection bracket is rotatably connected with a spacing protection strip of decreasing length, the bottom of the spacing protection strip is provided with an arc-shaped buffer cylinder fixed to the inner wall of the steel pipe conveying platform, the inner wall of the arc-shaped buffer cylinder is sealingly and slidably connected with a lifting buffer support rod movably connected to the spacing protection strip.

[0014] Preferably, an arc-shaped protective groove is provided on the side wall of the lifting buffer support rod, and a protective blocking area is provided in the angle area between the lifting buffer support rod and the spacing protective strip.

[0015] Preferably, the interval pushing mechanism includes a lifting cylinder arranged on the top of the steel pipe conveying platform, the lifting cylinder is slidably connected to the bottom of the interval protection bracket through a hydraulic connecting rod, and the lifting cylinder is communicated with the arc buffer cylinder.

[0016] Preferably, the bottom of the interval protection bracket is provided with an interval tilting pushing seat fixed to the top of the steel pipe conveying platform, the top of the interval tilting pushing seat is provided with an interval control touch block, the bottom of the interval protection bracket is provided with an interval control solenoid valve touch switch electrically connected to the arc-shaped buffer cylinder, and the interval control solenoid valve touch switch is touch-connected with the interval control touch block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In view of the problem mentioned above that the waste chips on the inner and outer surfaces of the existing bearing steel tube during the perforation and shaping process are likely to hinder the subsequent processing process, a cleaning motor, a perforation cleaning rod, a sealing buffer sleeve and other devices are provided to cooperate with each other. After the perforation and shaping, the bearing steel tube moves to the outer surface of the perforation cleaning rod, and the waste chips attached to the inner wall of the rotating steel tube are cleaned by a cleaning brush, and the waste chips attached to the outer surface of the bearing steel tube are cleaned by a conveying motor and a conveying roller and a driven roller driven by the cleaning motor.

[0019] 2. In view of the problem mentioned above that during the existing perforation and shaping process of bearing steel pipes, the steel pipes may be deformed due to direct collision without complete heat dissipation, by providing devices such as interval protection brackets, interval protection strips and arc-shaped buffer cylinders to cooperate with each other, when the bearing steel pipe breaks away from the perforation cleaning rod and rolls along the steel pipe conveyor platform, the top of the interval protection strip is squeezed and when it passes over its edge, the bearing steel pipe is blocked by the more stable interval protection strip on the front side, thereby providing a protection mechanism for the bearing steel pipes collected at the intervals to avoid the problem of steel pipe deformation caused by direct collision without complete cooling.

[0020] 3. By setting up the spacing protection strips, arc-shaped buffer cylinders and lifting buffer support rods and other devices to cooperate with each other, when the bearing steel pipe passes over the edge of the spacing protection strip, the gas inside the arc-shaped buffer cylinder drives the spacing protection strip upward, and the bearing steel pipe provides support for the bottom of the spacing protection strip close to it, thereby increasing the rolling resistance to the subsequent bearing steel pipe, so that it cannot pass through when it moves to this place and stays here, thereby achieving the effect of spacing collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a bearing steel pipe conveying device proposed by the present invention;

[0022] Figure 2 This is a structural exploded view of a perforation cleaning mechanism in a bearing steel pipe conveying device proposed by the present invention;

[0023] Figure 3 This is a schematic structural diagram of an interval protection mechanism and an interval pushing mechanism of a bearing steel pipe conveying device proposed by the present invention;

[0024] Figure 4 For the present invention Figure 3 A magnified view of the structure at center A;

[0025] Figure 5 A schematic diagram of the internal structure of the arc-shaped buffer cylinder cross section of a bearing steel pipe conveying device proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of an interval-tilted pushing seat of a bearing steel pipe conveying device proposed by the present invention.

[0027] In the figure: 1. Steel pipe conveying platform; 2. Conveying servo motor group; 21. Conveying motor; 22. Cleaning motor; 23. Conveying roller; 24. Driven roller; 3. Perforated cleaning rod; 31. Sealing buffer sleeve; 32. Cleaning brush; 33. Angle limit strip; 4. Interval protection bracket; 41. Interval protection strip; 42. Arc buffer cylinder; 421. Interval control solenoid valve touch switch; 43. Lifting buffer support rod; 431. Arc protection groove; 432. Protection blocking area; 5. Lifting cylinder; 51. Hydraulic connecting rod; 6. Interval tilt push seat; 61. Interval control touch block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Reference Figures 1 to 6 A bearing steel pipe conveying device comprises a steel pipe conveying platform 1 for perforating bearing steel pipes, a perforation conveying unit is arranged on the top of the steel pipe conveying platform 1, and the perforation conveying unit consists of a cooling conveying mechanism and a perforation cleaning mechanism. The cooling conveying mechanism is used for transversely conveying the perforated bearing steel pipe, and the perforation cleaning mechanism is used for cleaning the waste on the surface of the perforated bearing steel pipe. An interval conveying unit is arranged on the top of the steel pipe conveying platform 1, and the interval conveying unit consists of an interval protection mechanism and an interval pushing mechanism. The interval protection mechanism is used for protecting and collecting the bearing steel pipes during the cooling process, and the interval pushing mechanism is used for interval pushing the bearing steel pipes after cooling.

[0030] like Figure 2 As shown, the cooling conveying mechanism includes a conveying servo motor group 2 arranged on the top of the steel pipe conveying platform 1. The conveying servo motor group 2 is composed of a conveying motor 21 and a cleaning motor 22 with opposite rotation directions. The output shafts of the conveying motor 21 and the cleaning motor 22 are both fixed with a conveying roller shaft 23.

[0031] Through the above technical solution, the outer surface of the conveying roller 23 is attached to the driven roller 24, and the outer surfaces of the conveying roller 23 and the driven roller 24 are both provided with inclined conveying strip grooves. During the rotation of the conveying roller 23, the driven roller 24 tangent to the bearing steel tube is driven to rotate synchronously, and the waste chips on the outer surface of the bearing steel tube are cleaned.

[0032] like Figure 2As shown, the perforation cleaning mechanism includes a perforation cleaning rod 3 sliding on the top of the steel pipe conveying platform 1, and a sealing buffer sleeve 31 is sleeved on the right side of the perforation cleaning rod 3, and a buffer component for limiting the sliding of the perforation cleaning rod 3 is arranged in the sealing buffer sleeve 31.

[0033] Through the above technical solution, a cleaning brush 32 is provided on the outer surface of the perforated cleaning rod 3 , and the perforated cleaning rod 3 is slidably connected to the sealing buffer sleeve 31 through an angle limiting strip 33 .

[0034] Based on the above, the perforated plastic bearing steel pipe rotates synchronously with the rotation of the conveying roller 23 and the driven roller 24, so that after the bearing steel pipe moves to the outer surface of the perforated cleaning rod 3, the inner surface of the pipe is cleaned by the cleaning brush 32, and after the cleaning is completed, the conveying motor 21 and the cleaning motor 22 are started to rotate in the opposite direction to the rotation direction during the cooling and conveying process, driving the bearing steel pipe to move to the interval conveying position, and when the bearing steel pipe is out of the clamping state of the conveying roller 23 and the driven roller 24, it falls to the top of the interval protection bracket 4, completing the perforation cleaning operation of the inner surface of the bearing steel pipe during the cooling and conveying process;

[0035] Based on the above, when the bearing steel pipe is cooled and transported, the conveying roller 23 and the driven roller 24 are driven to rotate by the cleaning motor 22 in the opposite direction of rotation to the conveying motor 21, and its rotation direction is opposite to the rotation direction of the conveying roller 23 and the driven roller 24 driven by the output shaft of the conveying motor 21, thereby increasing the contact time between the conveying roller 23 driven by the output shaft of the cleaning motor 22 and the bearing steel pipe during transportation, and further cleaning the waste on the outer surface of the bearing steel pipe. Similarly, when the bearing steel pipe is perforated and cleaned, the waste on the outer surface of the bearing steel pipe is further cleaned by the conveying roller 23 and the driven roller 24 in the opposite direction of rotation to the conveying motor 21, thereby completing the deep cleaning operation of the waste on the outer surface of the bearing steel pipe.

[0036] like Figures 3 to 5 As shown, the spacing protection mechanism includes a spacing protection bracket 4 arranged on the top of the steel pipe conveying platform 1, the inner wall of the spacing protection bracket 4 is rotatably connected with a spacing protection bar 41 with decreasing lengths, the bottom of the spacing protection bar 41 is provided with an arc-shaped buffer cylinder 42 fixed to the inner wall of the steel pipe conveying platform 1, and the inner wall of the arc-shaped buffer cylinder 42 is sealingly and slidably connected with a lifting buffer support rod 43 movably connected to the spacing protection bar 41.

[0037] Through the above technical solution, an arc-shaped protection groove 431 is opened on the side wall of the lifting buffer support rod 43, and a protection blocking area 432 is set in the angle area between the lifting buffer support rod 43 and the spacing protection strip 41.

[0038] Based on the above, when the bearing steel pipe falls along the steel pipe conveying platform 1 to the top of the spacing protection bracket 4 inclined upward on the front side, the spacing protection strip 41 is squeezed by the weight of the bearing steel pipe itself, so that the bearing steel pipe passes over the spacing protection strip 41 and enters the next layer of protection blocking area 432, and when the bearing steel pipe loses its kinetic energy, it fits with the arc-shaped protection groove 431 on the side wall of the pop-up lifting buffer support rod 43, and supports the spacing protection strip 41 on its top, increasing the resistance to the subsequent rolling bearing steel pipe to this point, so that it falls between the spacing protection strip 41 close to the previous bearing steel pipe stop support and the subsequent pop-up spacing protection strip 41, so that the bearing steel pipes are collected at intervals on the top of the spacing protection bracket 4, completing the spacing protection operation of the bearing steel pipe during the cooling and conveying process.

[0039] like Figure 3 As shown, the interval pushing mechanism includes a lifting cylinder 5 arranged on the top of the steel pipe conveying platform 1, the lifting cylinder 5 is slidably connected to the bottom of the interval protection bracket 4 through a hydraulic connecting rod 51, and the lifting cylinder 5 is connected to the arc buffer cylinder 42.

[0040] Through the above technical solution, such as Figure 6 As shown, the bottom of the interval protection bracket 4 is provided with an interval tilting pushing seat 6 fixed to the top of the steel pipe conveying platform 1, and the top of the interval tilting pushing seat 6 is provided with an interval control touch block 61. The bottom of the interval protection bracket 4 is provided with an interval control solenoid valve touch switch 421 electrically connected to the arc buffer cylinder 42, and the interval control solenoid valve touch switch 421 is touch-connected with the interval control touch block 61. The interval control solenoid valve touch switch 421 is arranged in a manner of decreasing length from front to back. When the interval protection bracket 4 rotates upward, the frontmost interval control solenoid valve touch switch 421 is finally separated from the contact and extrusion state with the interval control touch block 61, and is thereby arranged in the arc buffer cylinder 42 in a manner of decreasing air pressure from front to back.

[0041] Based on the above, when the surface temperature of the bearing steel tube drops to a temperature where the hardness is stable, the air pressure in the lifting cylinder 5 is reduced to drive the interval protection bracket 4 to fit the interval tilting push seat 6, so that the interval protection bracket 4 rotates from a higher state at the front to a higher state at the rear, and the interval control solenoid valve touch switch 421 touches the interval control touch block 61, turning on the arc buffer cylinder 42 at the front side, reducing the air pressure therein, so that the bearing steel tube can roll forward from the interval protection bracket 4, and the restriction on the next bearing steel tube is released, so that the bearing steel tube can roll forward at intervals, completing the interval pushing operation of the bearing steel tube;

[0042] Based on the above, when the interval protection bracket 4 rises to a higher state on the front side, the interval control solenoid valve touch switch 421 is separated from the touch state with the interval control touch block 61, so that the cavity of the arc-shaped buffer cylinder 42 here is in a closed state, and is not directly connected to the lifting cylinder 5 as the subsequent interval protection bracket 4 descends, so that the bearing steel pipe can be lowered to the pushing height and then pushed at intervals, thereby avoiding the frontmost interval protection strip 41 from falling prematurely during the bearing steel pipe transportation process, causing it to fall and collide with the top of the steel pipe conveying platform 1 due to shaking, thereby reducing the quality of the bearing steel pipe.

[0043] When the present invention performs plastic perforation on the bearing steel pipe, at the exit of the existing perforation equipment, the conveying roller 23 connected to the conveying shaft of the conveying motor 21 cooperates with the driven roller 24 to clamp the high-temperature bearing steel pipe, and then the conveying motor 21 rotates to drive the conveying roller 23 and the driven roller 24 to rotate synchronously, generating a rightward thrust on the bearing steel pipe, so that the bearing steel pipe is sleeved on the outer surface of the perforation cleaning rod 3, and the bearing steel pipe after perforation plasticity is cooled and transported to the perforation cleaning mechanism. This is the cooling and transporting process of the bearing steel pipe after perforation plasticity.

[0044] The perforated plastic bearing steel pipe rotates synchronously with the rotation of the conveying roller 23 and the driven roller 24, so that after the bearing steel pipe moves to the outer surface of the perforated cleaning rod 3, the inner surface of the pipe is cleaned by the cleaning brush 32, and after the cleaning is completed, the conveying motor 21 and the cleaning motor 22 are started to rotate in the opposite direction to the rotation direction during the cooling and conveying process, driving the bearing steel pipe to move to the interval conveying position, and when the bearing steel pipe is separated from the clamping state of the conveying roller 23 and the driven roller 24, it falls to the top of the interval protection bracket 4, which is the perforation cleaning process of the inner surface of the bearing steel pipe during the cooling and conveying process;

[0045] When the bearing steel pipe falls along the steel pipe conveying platform 1 to the top of the spacing protection bracket 4 inclined upward on the front side, the spacing protection strip 41 is squeezed by the bearing steel pipe's own weight, so that the bearing steel pipe passes over the spacing protection strip 41 and enters the next protection blocking area 432, and when the bearing steel pipe loses its kinetic energy, it fits with the arc-shaped protection groove 431 on the side wall of the pop-up lifting buffer support rod 43, supports the spacing protection strip 41 on its top, increases the resistance to the subsequent rolling bearing steel pipe to this point, makes it fall between the spacing protection strip 41 close to the previous bearing steel pipe stop support and the subsequent pop-up spacing protection strip 41, so that the bearing steel pipes are collected at intervals on the top of the spacing protection bracket 4, which is the spacing protection process during the cooling and conveying process of the bearing steel pipe;

[0046] When the surface temperature of the bearing steel tube drops to a temperature at which the hardness is stable, the air pressure in the lifting cylinder 5 is reduced to drive the interval protection bracket 4 to fit into the interval tilting push seat 6, so that the interval protection bracket 4 rotates from a higher state at the front to a higher state at the rear, and the interval control solenoid valve touch switch 421 touches the interval control touch block 61, turning on the arc-shaped buffer cylinder 42 at the front side, reducing the air pressure therein, so that the bearing steel tube can roll forward from the interval protection bracket 4, and the restriction on the next bearing steel tube is released, so that the bearing steel tube can roll forward at intervals. This is the interval pushing process of the bearing steel tube.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bearing steel pipe conveying device, comprising a steel pipe conveying platform (1) for perforating a bearing steel pipe, It is characterized in that A perforation conveying unit is arranged on the top of the steel pipe conveying platform (1), and the perforation conveying unit is composed of a cooling conveying mechanism and a perforation cleaning mechanism. The cooling conveying mechanism is used to carry out transverse conveying of the perforated bearing steel pipe, and the perforation cleaning mechanism is used to clean the waste on the surface of the perforated bearing steel pipe; The cooling conveying mechanism comprises a conveying servo motor group (2) arranged on the top of the steel pipe conveying platform (1), the conveying servo motor group (2) comprising a conveying motor (21) and a cleaning motor (22) rotating in opposite directions, the output shafts of the conveying motor (21) and the cleaning motor (22) are both fixed with a conveying roller (23), the outer surface of the conveying roller (23) is attached with a driven roller (24), and the outer surfaces of the conveying roller (23) and the driven roller (24) are both provided with obliquely arranged conveying strip grooves; When the bearing steel pipe is conveyed under cooling, the conveying roller (23) and the driven roller (24) are driven to rotate by the cleaning motor (22) which rotates in the opposite direction to the conveying motor (21), and the cleaning motor (22) rotates in the opposite direction to the conveying roller (23) and the driven roller (24) driven by the output shaft of the conveying motor (21), thereby increasing the contact time between the conveying roller (23) driven by the output shaft of the cleaning motor (22) and the bearing steel pipe during the conveying process, and further cleaning the waste on the outer surface of the bearing steel pipe. Similarly, when the bearing steel pipe is perforated and cleaned, the waste on the outer surface of the bearing steel pipe is further cleaned by the conveying roller (23) and the driven roller (24) which rotate in the opposite direction to the conveying motor (21), thereby completing the deep cleaning operation of the waste on the outer surface of the bearing steel pipe. The top of the steel pipe conveying platform (1) is provided with an interval conveying unit, the interval conveying unit is composed of an interval protection mechanism and an interval pushing mechanism, the interval protection mechanism is used to protect and collect the bearing steel pipes during the cooling process, and the interval pushing mechanism is used to push the bearing steel pipes at intervals after cooling; The spacing protection mechanism comprises a spacing protection bracket (4) arranged on the top of the steel pipe conveying platform (1); the inner wall of the spacing protection bracket (4) is rotatably connected to a spacing protection strip (41) of decreasing length; the bottom of the spacing protection strip (41) is provided with an arc-shaped buffer cylinder (42) fixed to the inner wall of the steel pipe conveying platform (1); the inner wall of the arc-shaped buffer cylinder (42) is sealingly and slidably connected to a lifting buffer support rod (43) movably connected to the spacing protection strip (41); the side wall of the lifting buffer support rod (43) is provided with an arc-shaped protection groove (431); and a protection blocking area (432) is provided in the angle area between the lifting buffer support rod (43) and the spacing protection strip (41); The interval pushing mechanism comprises a lifting cylinder (5) arranged on the top of the steel pipe conveying platform (1); the lifting cylinder (5) is slidably connected to the bottom of the interval protection bracket (4) through a hydraulic connecting rod (51); the lifting cylinder (5) is connected to the arc-shaped buffer cylinder (42); the bottom of the interval protection bracket (4) is provided with an interval tilting pushing seat (6) fixed to the top of the steel pipe conveying platform (1); the top of the interval tilting pushing seat (6) is provided with an interval control touch block (61); the bottom of the interval protection bracket (4) is provided with an interval control solenoid valve touch switch (421) electrically connected to the arc-shaped buffer cylinder (42); and the interval control solenoid valve touch switch (421) is touch-connected to the interval control touch block (61); When the surface temperature of the bearing steel tube drops to a temperature at which the hardness is stable, the air pressure in the lifting cylinder (5) is reduced to drive the interval protection bracket (4) to fit the interval tilting push seat (6), so that the interval protection bracket (4) rotates from a higher state at the front to a higher state at the rear, and the interval control solenoid valve touch switch (421) touches the interval control touch block (61), turning on the arc-shaped buffer cylinder (42) at the front, reducing the air pressure therein, so that the bearing steel tube can roll forward from the interval protection bracket (4), and the restriction on the next bearing steel tube is released, so that the bearing steel tube can roll forward at intervals, completing the interval pushing operation of the bearing steel tube; When the spacing protection bracket (4) rises to a higher state at the front side, the spacing control solenoid valve touch switch (421) is separated from the contact state with the spacing control touch block (61), so that the cavity of the arc-shaped buffer cylinder (42) is in a closed state and is not directly connected to the lifting cylinder (5) as the subsequent spacing protection bracket (4) descends. As a result, the bearing steel pipe can be pushed after it descends to the pushing height, thereby preventing the spacing protection strip (41) on the front side from falling prematurely during the conveying process of the bearing steel pipe, causing it to fall and collide with the top of the steel pipe conveying platform (1) due to shaking, thereby reducing the quality of the bearing steel pipe.

2. A bearing steel pipe conveying device according to claim 1, It is characterized in that The perforation cleaning mechanism comprises a perforation cleaning rod (3) which slides on the top of the steel pipe conveying platform (1), a sealing buffer sleeve (31) being sleeved on the right side of the perforation cleaning rod (3), and a buffer component which limits the sliding of the perforation cleaning rod (3) being arranged inside the sealing buffer sleeve (31).

3. A bearing steel pipe conveying device according to claim 2, It is characterized in that A cleaning brush (32) is provided on the outer surface of the perforated cleaning rod (3), and the perforated cleaning rod (3) is slidably connected to the sealing buffer sleeve (31) via an angle limiting strip (33).

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