阅读说明：本技术 一种保温管钢管穿管装置 (Steel pipe penetrating device for heat preservation pipe ) 是由 周曰从 刘福聪 王鹏 蔡玉俊 张仕海 田继红 李志� 李宪实 张媛媛 魏松 于 2021-02-26 设计创作，主要内容包括：本发明提供一种保温管钢管穿管装置,包括钢管架,所述钢管架一端安装有推进机构；所述推进机构包括推进小车,所述钢管架上安装有推进链条带,所述推进小车与所述推进链条带连接设置,所述推进链条带传动连接有推进电机；所述推进电机连接减速器,所述减速器通过联轴器与传动轴连接,所述传动轴通过轴承安装于钢管架上,所述传动轴上固定安装有链轮,所述推进链条带置于链轮上；所述推进电机带动推进链条带在钢管架上动作,所述推进链条带带动所述推进小车在所述钢管架上移动。本发明能够将钢管架上的钢管自动推入到外套管内,同时在钢管安装放置的过程中,尽量降低对的钢管损坏。(The invention provides a steel pipe penetrating device for a heat preservation pipe, which comprises a steel pipe frame, wherein a propelling mechanism is arranged at one end of the steel pipe frame; the pushing mechanism comprises a pushing trolley, a pushing chain belt is mounted on the steel pipe frame, the pushing trolley is connected with the pushing chain belt, and the pushing chain belt is in transmission connection with a pushing motor; the propelling motor is connected with a speed reducer, the speed reducer is connected with a transmission shaft through a coupler, the transmission shaft is arranged on the steel pipe frame through a bearing, a chain wheel is fixedly arranged on the transmission shaft, and the propelling chain belt is arranged on the chain wheel; the pushing motor drives the pushing chain belt to move on the steel pipe frame, and the pushing chain belt drives the pushing trolley to move on the steel pipe frame. The steel pipe pushing device can automatically push the steel pipe on the steel pipe frame into the outer sleeve, and simultaneously reduces the damage to the steel pipe as much as possible in the process of installing and placing the steel pipe.)

1. The heat-preservation pipe steel pipe penetrating device is characterized by comprising a steel pipe frame (2), wherein one end of the steel pipe frame (2) is provided with a propelling mechanism (4);

the pushing mechanism (4) comprises a pushing trolley (401), a pushing chain belt (403) is mounted on the steel pipe frame (2), the pushing trolley (401) is connected with the pushing chain belt (403), and the pushing chain belt (403) is in transmission connection with a pushing motor (404);

the propelling motor (404) is connected with a speed reducer (406), the speed reducer (406) is connected with a transmission shaft (408) through a motor coupler, the transmission shaft (408) is mounted on the steel pipe frame (2) through a bearing, a chain wheel (407) is fixedly mounted on the transmission shaft (408), and the propelling chain belt (403) is arranged on the chain wheel (407);

the pushing motor (404) drives the pushing chain belt (403) to move on the steel pipe frame (2), and the pushing chain belt (403) drives the pushing trolley (401) to move on the steel pipe frame (2).

2. The device for penetrating the steel pipe of the heat preservation pipe according to claim 1, characterized in that: the steel pipe frame is characterized in that rollers (405) are mounted on the propelling trolley (401), roller grooves are formed in the steel pipe frame (2), and the rollers (405) are arranged in the roller grooves.

3. The device for penetrating the steel pipe of the heat preservation pipe according to claim 1, characterized in that: the tail end of the propelling trolley (401) is provided with a balancing weight, and the front end of the propelling trolley (401) is provided with a push plate.

4. The device for penetrating the steel pipe of the heat preservation pipe according to claim 1, characterized in that: a jacking mechanism (3) is arranged below the steel pipe frame (2);

climbing mechanism (3) include climbing motor (301) and transfer bar (303), install commutator (302) on climbing motor (301), install in commutator (302) transfer bar (303) one end, elevating system (305) are installed to the transfer bar (303) other end.

5. The device for penetrating the steel pipe of the heat preservation pipe according to claim 4, wherein: elevating system (305) include bottom plate (3057) and jacking worm (3056), install worm riser (304) on bottom plate (3057), install in worm riser (304) jacking worm (3056) one end, backup pad (3055) are installed to the jacking worm (3056) other end.

6. The device for penetrating the steel pipe of the heat preservation pipe according to claim 5, wherein: install guide cylinder (3051) on bottom plate (3057), install uide bushing (3052) in guide cylinder (3051), movable mounting has guide bar (3053) one end in uide bushing (3052), install guide bar (3053) the other end backup pad (3055).

7. The device for penetrating the steel pipe of the heat preservation pipe according to claim 6, wherein: install direction pole (3054) on backup pad (3055), direction pole (3054) are the thick middle thin structure in both ends, direction pole (3054) pass through bearing movable mounting in backup pad (3055) top surface.

8. The device for penetrating the steel pipe of the heat preservation pipe according to claim 1, characterized in that: a buffer mechanism (5) is arranged below the steel pipe frame (2);

the buffer mechanism (5) comprises a buffer base (502) and a buffer cylinder (504), one end of the buffer cylinder (504) is installed on the buffer base (502), and a buffer rod (501) is installed at the other end of the buffer cylinder (504);

the buffer rod (501) is movably connected with the buffer base (502) and used for limiting the position of the connection position of the buffer rod (501) and the buffer base (502).

9. The device for penetrating the steel pipe of the heat preservation pipe according to claim 8, wherein: the buffer rod (501) is of an L-shaped structure, a base support (503) is arranged on the buffer base (502), and the suspended end of the base support (503) is movably connected with the buffer rod (501);

buffer beam (501) one end with buffer cylinder (504) are connected, buffer beam (501) other end unsettled setting, just damper (5011) are installed to buffer beam (501) suspension end.

10. The device for penetrating the steel pipe of the heat preservation pipe according to claim 1, characterized in that: a stop block (6) is installed on the side face of the steel pipe frame (2), and the top end of the stop block (6) is higher than the steel pipe frame (2).

Technical Field

The invention relates to the technical field of pipe penetrating of a heat preservation pipe, in particular to a pipe penetrating device for a steel pipe of the heat preservation pipe.

Background

Insulating tube: the heat-insulating pipe is used for conveying liquid, gas and other media, and the indoor heat-insulating pipe is mainly used in heat-insulating engineering of pipelines for central heating, central air-conditioning, municipal administration and the like. The heat preservation pipe comprises an outer sleeve and a steel pipe, wherein the steel pipe is required to be sleeved into the outer sleeve in the production of the heat preservation pipe, the steel pipe is placed on a specified steel pipe frame before the sleeve, the axis of the steel pipe is aligned with the axis of the outer sleeve, and then the heat preservation pipe is pushed into the outer sleeve which is placed in advance. Therefore, there is a need for a device that can automatically push steel pipes on a steel pipe frame into an outer jacket pipe, and simultaneously minimize damage to the steel pipes during installation and placement of the steel pipes.

Disclosure of Invention

In view of the above, the present invention provides a steel pipe threading device for a thermal insulation pipe, which can automatically push a steel pipe on a steel pipe frame into an outer sleeve.

In order to solve the technical problems, the invention adopts the technical scheme that:

a heat preservation pipe steel pipe penetrating device comprises a steel pipe frame, wherein a propelling mechanism is installed at one end of the steel pipe frame;

the pushing mechanism comprises a pushing trolley, a pushing chain belt is mounted on the steel pipe frame, the pushing trolley is connected with the pushing chain belt, and the pushing chain belt is in transmission connection with a pushing motor;

the propelling motor is connected with a speed reducer, the speed reducer is connected with a transmission shaft through a motor coupler, the transmission shaft is arranged on the steel pipe frame through a bearing, a chain wheel is fixedly arranged on the transmission shaft, and the propelling chain belt is arranged on the chain wheel;

the pushing motor drives the pushing chain belt to move on the steel pipe frame, and the pushing trolley is driven to move on the steel pipe frame.

Further, the propelling trolley is provided with a roller, the steel pipe frame is provided with a roller groove, and the roller is arranged in the roller groove.

Furthermore, the tail end of the propelling trolley is provided with a balancing weight, and the front end of the propelling trolley is provided with a push plate.

Furthermore, a jacking mechanism is arranged below the steel pipe frame;

the jacking mechanism comprises a jacking motor and a transmission rod, a commutator is arranged on the jacking motor, one end of the transmission rod is arranged in the commutator, and a lifting mechanism is arranged at the other end of the transmission rod.

Furthermore, elevating system includes bottom plate and jacking worm, installs the worm riser on the bottom plate, installs jacking worm one end in the worm riser, and the backup pad is installed to the jacking worm other end.

Furthermore, a guide cylinder is installed on the bottom plate, a guide sleeve is installed in the guide cylinder, one end of a guide rod is movably installed in the guide sleeve, and a supporting plate is installed at the other end of the guide rod.

Further, install the direction pole in the backup pad, the direction pole is thin structure in the middle of the thick both ends, and the direction pole passes through bearing movable mounting at the backup pad top surface.

Further, a buffer mechanism is arranged below the steel pipe frame;

the buffer mechanism comprises a buffer base and a buffer cylinder, one end of the buffer cylinder is arranged on the buffer base, and a buffer rod is arranged at the other end of the buffer cylinder;

the buffer rod is movably connected with the buffer base and used for limiting the position of the joint of the buffer rod and the buffer base.

Furthermore, the buffer rod is of an L-shaped structure, a base support is arranged on the buffer base, and the suspension end of the base support is connected with the buffer rod;

buffer beam one end is connected with buffer cylinder, and the unsettled setting of buffer beam other end, and buffer beam other end tip installs the shock attenuation piece.

Furthermore, a stop block is installed on the side face of the steel pipe frame, and the top end of the stop block is higher than the steel pipe frame.

The invention has the advantages and positive effects that:

the steel pipe placed on the steel pipe frame is buffered through the buffer device, the steel pipe is prevented from being damaged in the process of placing the steel pipe, after the sense organ is placed, the jacking device is opened, the jacking device slowly pushes up the steel pipe, after the axis of the steel pipe is aligned with the axis of the outer sleeve placed in the same period, the jacking device is closed, the steel pipe is kept in the aligned position, the propulsion device is opened, a push plate at the front end of the propulsion trolley pushes the steel pipe into the outer sleeve, and the installation of the steel pipe is completed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall structure view of a steel pipe penetrating device for an insulating pipe according to the present invention;

FIG. 2 is a front view of a steel pipe penetrating device of the heat preservation pipe of the invention;

FIG. 3 is a three-dimensional view of a jacking mechanism of the device for penetrating the steel pipe into the heat preservation pipe;

FIG. 4 is a left side view of a jacking mechanism of the device for penetrating the steel pipe into the heat preservation pipe;

FIG. 5 is an enlarged view at A in FIG. 1;

FIG. 6 is a left side view of a buffering mechanism of the steel pipe penetrating device for the heat preservation pipe of the invention;

in the figure: 1. a pipe penetrating steel pipe; 2. a steel pipe frame; 3. a jacking mechanism; 301. a jacking motor; 302. a commutator; 303. a transfer lever; 304. a worm lifter; 305. a lifting mechanism; 3051. a guide cylinder; 3052. a guide sleeve; 3053. a guide bar; 3054. a steering column; 3055. a support plate; 3056. a jacking worm; 3057. a base plate; 4. a propulsion mechanism; 401. propelling the trolley; 402. a connecting frame 403, a pushing chain belt; 404. a propulsion motor; 405. a roller; 406. a speed reducer; 407. a sprocket; 408. a drive shaft; 5. a buffer mechanism; 501. a buffer rod; 5011. a shock absorbing member; 502. a base; 503. a base support; 504. a buffer cylinder; 6. and a stop block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, the invention provides a heat preservation pipe steel pipe penetrating device, which comprises a steel pipe frame 2, wherein a penetrating steel pipe 1 is placed above the steel pipe frame 2, a stop block 6 is installed on the side surface of the steel pipe frame 2, the top end of the stop block 6 is arranged higher than the steel pipe frame 2, when the penetrating steel pipe 1 is placed on the steel pipe frame 2, the steel pipe frame 2 is still unstable and can roll on the steel pipe frame 2 due to inertia, the stop block 6 can stop the rolling path of the penetrating steel pipe 1, and the penetrating steel pipe 1 is effectively prevented from rolling off the steel pipe frame 2.

In the practicality, if dog 6 all installs in steel-pipe frame both sides, produce violent collision with steel-pipe frame 2 easily when placing poling steel pipe 1, and then damage the steel pipe, consequently, select one side installation dog 6 at steel-pipe frame 2, and dog 6 slope sets up, after putting poling steel pipe 1 on steel-pipe frame 2, poling steel pipe 1 is because inertia, can roll forward, poling steel pipe 1 touches dog 6, can roll one section distance along the inclined plane of dog 6 upwards, offset inertia on the steel pipe, the steel pipe is got back to on steel-pipe frame 2 under, the condition of the collision of poling steel pipe 1 and steel-pipe frame 2 can be reduced to this process, can also prevent that the steel pipe from rolling off from steel-pipe frame 2.

The propulsion mechanism 4 is installed to 2 one ends of steel-pipe frame, through propulsion mechanism 4, will put the steel pipe on steel-pipe frame 2 and promote along 2 length direction on the steel-pipe frame, will wear the pipe steel pipe 1 steady push outer sleeve intraductal, accomplish the installation of wearing pipe steel pipe 1.

The propulsion mechanism 4 comprises a propulsion trolley 401, the propulsion trolley 401 moves on the steel pipe frame 2, a propulsion chain belt 403 is mounted on the steel pipe frame 2, the mounting mode of the propulsion chain belt 403 is the same as that of a conveyor belt, the propulsion trolley 401 and the propulsion chain belt 403 are connected, and when the propulsion chain belt 403 moves in the length direction of the steel pipe frame 2, the propulsion trolley 401 is driven to move upwards in the length direction of the steel pipe frame 2 together, so that the propulsion trolley 401 pushes the steel pipe penetrating pipe 1 to move.

The movable propulsion chain belt 403 is provided with a propulsion motor 404 in a transmission manner, the propulsion motor 404 is connected with a speed reducer 406, the speed reducer 406 is connected with a transmission shaft 408 through a motor coupler, the structure transmits the rotation condition of the propulsion motor 404 to the transmission shaft 408, the transmission shaft 408 is arranged on the steel pipe frame 2 through a bearing, a chain wheel 407 is fixedly arranged on the transmission shaft 408, and the propulsion chain belt 403 is arranged on the chain wheel 407; the chain wheel 407 is driven to rotate by the propelling motor 404, and the propelling motor 404 provides power for the propelling chain belt 403, so that the propelling chain 403 moves in the length direction of the steel pipe frame 2 as the same as the conveying belt, and further drives the propelling trolley 401 to move on the steel pipe frame 2.

The trolley 401 is provided with rollers 405, roller grooves are formed in the corresponding positions of the steel pipe frame 2, the rollers 405 are arranged in the roller grooves, friction between the trolley 401 and the steel pipe frame 2 is rolling friction, and meanwhile the rollers 405 are arranged on the side of the trolley 401, so that a plurality of stress points are formed between the trolley 401 and the steel pipe frame 2, and the stability of the trolley 401 is improved. When the propulsion chain 403 provides power for the propulsion trolley 401, the rollers 405 roll in the roller grooves on the steel pipe frame 2, so that the moving straightness of the trolley is ensured, and the working efficiency of the propulsion mechanism 4 is improved.

The tail end of the propelling trolley 401 is provided with a balancing weight, the front end of the propelling trolley 401 is provided with a push plate, and the length of the push plate is larger than the diameter of all the steel tubes 1 on the market, so that the propelling trolley 401 is suitable for installation of all the steel tubes 1. The balancing weight is mainly used for balancing the propelling trolley 401, the stability of the propelling trolley 401 is improved, and the propelling trolley 401 is guaranteed to be in the process of pushing the pipe penetrating steel pipe 1, so that the front end of the propelling trolley 401 cannot be tilted due to the fact that the pipe penetrating steel pipe 1 is too heavy.

In practical use, the pushing chain belt 403 and the pushing motor 404 can be installed on the steel pipe frame 2, so that the steel pipe frame 2 can support the pushing chain belt 403 conveniently, and a pushing chain belt 403 support does not need to be installed unnecessarily. A chain groove is additionally arranged on the steel pipe frame 2, the propulsion chain belt 403 is arranged in the chain groove, and under the condition that the work of the propulsion chain belt 403 is not influenced, sundries falling into the propulsion chain 403 can be effectively prevented, so that the service life of the chain is influenced. The push chain 403 is arranged on the side of the steel pipe frame 2, the rollers 405 are arranged on two sides of the push trolley 401, enough space is reserved under the steel pipe frame 2 and in the inner cavity, and the jacking mechanism 3 and the buffer mechanism 5 are conveniently arranged under the steel pipe frame 2.

The jacking mechanism 3 is used for lifting the steel pipe placed on the steel pipe frame 2 to a certain height, and the height of the axis of the pipe penetrating steel pipe 1 is the same as that of the axis of the outer sleeve, so that subsequent pipe penetrating installation is facilitated.

The jacking mechanism 3 comprises a jacking motor 301 and a transmission rod 303, wherein the jacking motor 301 is used for providing power, and the transmission rod 303 is used for transmitting the power provided by the jacking motor 301 to the lifting mechanism 305.

The jacking motor 301 is connected with the commutator 302, the commutator 302 can convert the power generated by the jacking motor 301 to a plurality of transmission rods 303, the power generated by the jacking motor 301 is reasonably and effectively utilized, and meanwhile, the power transmitted by each transmission rod 303 of the commutator 302 can be controlled.

The commutator 302 is connected with one end of the transmission rod 303, the other end of the transmission rod 303 is connected with the lifting mechanism 305, the transmission rod 303 transmits the torque generated by the jacking motor 301 to the lifting mechanism 305 to provide power for the lifting mechanism 305, so that the lifting mechanism 305 drives the steel pipe to move up and down, and the steel pipe is conveniently aligned with the axis of the outer sleeve.

The whole jacking device is arranged by a plurality of lifting mechanisms 305 and is formed, each lifting mechanism 305 is connected through a transmission rod 303, the transmission rods 303 uniformly provide the same torsional force for the plurality of lifting mechanisms 305, a jacking motor 301 is installed at the middle position where the lifting mechanisms 305 are arranged and is connected with the transmission rods 303, the jacking motor 301 is arranged between the two lifting mechanisms 305, the torque generated by the jacking motor 301 can be reasonably distributed, the damage caused by the overlarge torque of the transmission rods 303 directly connected with the jacking motor 301 when the lifting mechanisms 305 are arranged too much is avoided, meanwhile, the plurality of lifting mechanisms 305 are powered by one jacking motor 301, and the moving heights of the plurality of lifting mechanisms 305 can be ensured to be completely the same.

Elevating system 305 includes bottom plate 3057 and jacking worm 3056, installs worm riser 304 on the bottom plate 3057, installs jacking worm 3056 one end in the worm riser 304, and the jacking worm 3056 other end is connected with backup pad 3055, and transmission pole 303 provides power for worm riser 304, and worm riser 304 can drive jacking worm 3056 round trip movement, further drives backup pad 3055 and can reciprocate.

The transmission lever 303 is connected to the worm lifter 304 by a coupling, and the stability of connection between the transmission lever 303 and the worm lifter 304 can be improved.

Install guide cylinder 3051 on elevating system 305's the bottom plate 3057, install uide bushing 3052 in the uide bushing 3051, install guide bar 3053 one end in the uide bushing 3052, the guide bar 3053 other end is connected with backup pad 3055, cooperation through uide bushing 3051 and uide bushing 3052, the direction that guide bar 3053 removed can be injectd to the hole of uide bushing 3052, make guide bar 3053 can only move around along a direction, in order to reduce the frictional force of guide bar 3053, a uide bushing 3051 has been cup jointed outside the uide bushing 3052, the internal diameter of uide bushing 3051 is greater than the internal diameter of guide bar 3053, make a part of guide bar 3 contact with uide bushing 3052, another part is located the uide bushing 3051, reduce the area of contact of guide bar 3053, the frictional resistance that effectual reduction guide bar 3053 received.

Install cylindrical direction pole 3054 on the backup pad 3055, direction pole 3054 is direct and the steel pipe contact, reduces the area of contact of steel pipe and backup pad 3055, and direction pole 3054 passes through bearing movable mounting on backup pad 3055, makes direction pole 3054 and backup pad 3055 swing joint, and at the in-process that promotes the steel pipe, direction pole 3054 atress rolls, makes things convenient for the steel pipe to remove on backup pad 3055 more. At the in-process that promotes the steel pipe, the frictional force that can effectual reduction steel pipe sets the direction pole 3054 to the thick middle thin structure in both ends, can block the steel pipe in the recess of direction pole 3054, plays spacing effect to the steel pipe of putting in the direction pole 3054 top, can have the steel pipe of preventing of certain limit and roll down.

The buffer mechanism 5 is used for buffering the steel pipe penetrating 1 which is just placed on the steel pipe frame 2, and can prevent the steel pipe penetrating 1 from directly contacting the steel pipe frame 2 to generate large collision and damage the steel pipe penetrating 1.

The buffer mechanism 5 includes a buffer base 502 and a buffer cylinder 504, the buffer cylinder 504 is an element having a main buffer function, and the buffer action of the buffer mechanism 5 is completed according to the performance of the buffer cylinder 504 itself, one end of the buffer cylinder 504 is installed on the buffer base 502, the buffer rod 501 is installed at the other end of the buffer cylinder 504, the suspended end of the buffer rod 501 is moved by the collision, the other end of the buffer rod 501 compresses the buffer cylinder 504, and the buffer cylinder 504 slowly reduces the collision force.

Preferably, the buffer rod 501 is arranged in an L-shaped structure, a base bracket 503 is arranged on the buffer base 502, and the free end of the base bracket 503 is movably connected with the buffer rod 501; preferably, the bending position of the buffering rod 501 can be movably connected with the base support 503, one end of the buffering rod 501 is connected with the buffering cylinder 504, the other end of the buffering cylinder 504 is connected with the buffering base 502, and the buffering rod 501 and the buffering cylinder 504 form a Z-shaped structure integrally. When buffer beam 501 is not stressed, the free end of buffer beam 501 and the horizontal plane form a forward included angle, the end of the free end of buffer beam 501 is higher than the base 502 support, when buffer beam 501 free end falls from the top as poling steel pipe 1, buffer beam 501 free end moves to the position parallel to steel pipe frame 2 gradually because of the stress, and poling steel pipe 1 can also roll along the inclination angle of buffer beam 501 free end on steel pipe frame 2 simultaneously. Can install a bumper shock absorber 5011 at buffer beam 501 free end, bumper shock absorber 5011 can be other materials that have shock-absorbing function for the rubber material, and poling steel pipe 1 directly contacts with buffer beam 501 free end tip, avoids damaging poling steel pipe 1.

In use, because the stop block 6 is arranged on one side of the steel pipe frame 2, the buffer mechanism 5 can be arranged on the other side of the steel pipe frame 2, the hanging end of the buffer rod 501 is higher than the steel pipe frame 2, and because the hanging end of the buffer rod 501 is of a structure with a certain inclination angle with the horizontal plane, a V-shaped structure can be formed by the buffer rod 501 and the stop block 6, and the effect of defining the placing position of the steel pipe penetrating pipe is achieved.

The working principle and the working process of the invention are as follows:

the pipe penetrating steel pipe 1 to be installed is moved to the upper side of the side, without the stop block 6, of the steel pipe frame 2, when the pipe penetrating steel pipe 1 is just above the suspended end of the buffer rod 501, the pipe penetrating steel pipe 1 is placed down, the pipe penetrating falls on the inclined plane of the suspended end of the buffer rod 501 of the buffer mechanism 5, the buffer cylinder 504 is compressed by the other end of the buffer rod 501, the inclination angle of the suspended end of the buffer rod 501 is gradually reduced, the pipe penetrating steel pipe is enabled to be slowly close to the steel pipe frame 2, and meanwhile, the pipe penetrating steel pipe 1 can also roll on the steel pipe frame 2 along the inclined plane of the suspended end of the buffer rod 501. The whole process is that the pipe penetrating steel pipe 1 has no over-strong collision.

Because of the inertia of the steel pipe 1, the steel pipe 1 will continue to roll after rolling down to the steel pipe frame 2 and roll to the inclined plane of the stop block 6 at the other side of the steel pipe frame 2, and because of the energy conservation principle, the steel pipe 1 will return to the steel pipe frame 2 without rolling to the highest position of the stop block 6; the steel pipe 1 is again rolled on the inclined rod at the free end of the buffer rod 501, and the steel pipe is then rolled several times in this manner, and then is stationary on the steel pipe frame 2.

And after the pipe penetrating steel pipe 1 is completely static, jacking the pipe penetrating steel pipe 1 to align the axis of the pipe penetrating steel pipe 1 with the axis of the outer sleeve which is placed at the same time.

The jacking motor 301 is started, the torsion force generated by the jacking motor 301 is transmitted to the transmission rods 303 at two sides through the commutator 302, the transmission rods 303 transmit the torsion force to the worm lifter 304, the worm lifter 304 converts the horizontal torsion force of the transmission rods 303 through the worm and gear, so that the jacking worm 3056 in the worm lifter 304 can stably move up and down, and the supporting plate 3055 is driven to move up and down.

Jacking motor 301 forward rotation, backup pad 3055 rises, and jacking motor 301 reverse rotation, backup pad 3055 descend, through jacking motor 301 height of adjusting backup pad 3055, make the steel pipe align with the outer tube, make things convenient for the poling work of follow-up steel pipe.

Finally, the pipe-penetrating steel pipe 1 is pushed, the pushing motor 404 is started, the pushing motor 404 drives the pushing chain belt 403 to move on the steel pipe frame 2, the moving mode of the pushing chain belt 403 is the same as that of a transmission belt, the pushing chain belt 403 pushes the pushing trolley 401 to move in the length direction of the steel pipe frame 2, the rollers 405 of the pushing trolley 401 drive the pushing trolley 401 to move stably on the steel pipe frame 2, the pushing plate at the front end of the pushing trolley 401 pushes the pipe-penetrating steel pipe 1 on the steel pipe frame 2 to move forwards to penetrate into the outer sleeve, and the penetrating process of the pipe-penetrating steel pipe 1 is completed.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.