CN108296381B

CN108296381B - Pipe winding vehicle

Info

Publication number: CN108296381B
Application number: CN201810314991.9A
Authority: CN
Inventors: 俞晓波; 李凌; 忻红波; 袁黎光; 张永辉
Original assignee: Zhenhai Petrochemical Construction And Installation Engineering Co ltd
Current assignee: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING CO LTD
Priority date: 2018-04-10
Filing date: 2018-04-10
Publication date: 2024-03-22
Anticipated expiration: 2038-04-10
Also published as: CN108296381A

Abstract

The utility model provides a winding pipe car, includes the base member, installs the lift platform on the base member, its characterized in that: the base member is the stand of lower extreme support on electric bicycle, and the cover is equipped with the sleeve pipe that only can follow the stand and reciprocate on this stand, lift platform's one end is fixed in this sheathed tube lower part, including simultaneously: the telescopic boom mechanism comprises a boom and a telescopic boom, one end of the boom is supported at the upper part of the sleeve through a first bearing, the boom can horizontally rotate relative to the upright post through a first driving mechanism, the telescopic boom is in inserted connection with the other end of the boom, the telescopic boom can axially and telescopically move relative to the boom under the driving of a second driving mechanism, a pipe winding disc for winding a heat exchange pipe to be wound is arranged on the boom, and a compressing and positioning device is arranged on the telescopic boom; the device also comprises a third driving mechanism. The pipe winding vehicle has a simple structure, can conveniently adjust the distance between the pipe outlet and the core body, and improves the pipe winding efficiency and quality.

Description

Pipe winding vehicle

Technical Field

The invention belongs to the technical field of heat exchanger winding, and particularly relates to a winding vehicle.

Background

Wound tube heat exchangers generally comprise a housing and a core made by alternately winding heat exchange tubes in a spiral shape around a core barrel. The winding process of the traditional core body is as follows: the winding method is characterized in that the winding method is low in automation degree by manually controlling the screw pitch, the winding angle and the winding speed among the heat exchange tubes, and the quality of the wound core body is mostly dependent on the level of operators, so that the quality of the wound tube is difficult to ensure, and the heat exchange effect of the heat exchanger is further affected; in addition, the method requires a plurality of operators to perform cooperation winding, so that the labor intensity of the operators is high, the efficiency is low, and higher labor cost and time cost are required.

In order to overcome the defects, the invention patent with the publication number of CN104444563B discloses a pipe winding machine, which comprises a pipe unwinding device, a pipe conveying device, a sensor and a control system, wherein the pipe winding machine can track the pipe feeding position in real time, adjust the pipe conveying height, the pipe conveying angle and the pipe conveying speed in real time, ensure the quality of a pipe, reduce the scrapping risk, reduce the labor intensity of workers and save the labor cost. However, with the large-scale development of the coiled tube type heat exchanger equipment, the weight of the inner core body of the equipment is increased, the number of heat exchange tubes needing to be coiled is also increased, and the coiling system can only coil a single heat exchange tube, so that the number of rotation turns and the fatigue strength of the coiled core body are increased; and along with the continuous increase of core coiling diameter, can be more and more near the mouth of pipe that goes out of above-mentioned winding pipe machine, the mouth of pipe that goes out of winding pipe machine and core too short distance can influence the winding pipe quality to a certain extent, and the structure is more complicated, difficult implementation.

Disclosure of Invention

Aiming at the current state of the art, the invention provides the pipe winding vehicle which has simple structure, is easy to implement and can conveniently adjust the distance between the pipe outlet and the core body so as to improve the pipe winding efficiency and quality.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a winding pipe car, including the base member that can follow core axial motion, install the lift platform on the base member, its characterized in that: the base member is the stand of lower extreme support on electric bicycle, and the cover is equipped with the sleeve pipe that only can follow the stand and reciprocate on this stand, lift platform's one end is fixed in this sheathed tube lower part, including simultaneously:

the telescopic boom mechanism comprises a boom and a telescopic boom, one end of the boom is supported at the upper part of the sleeve through a first bearing, the boom can horizontally rotate relative to the upright post through a first driving mechanism, the telescopic boom is in inserted connection with the other end of the boom, the telescopic boom can axially and telescopically move relative to the boom under the driving of a second driving mechanism, a pipe winding disc for winding a heat exchange pipe to be wound is arranged on the boom, and a compression positioning device which enables the heat exchange pipe to be wound to have proper pretightening force is arranged on the telescopic boom;

and the third driving mechanism is arranged on the upright post, connected with the sleeve and used for driving the sleeve, the lifting platform and the telescopic rotating arm mechanism to move up and down.

For convenient walking, as the improvement, still include flexible platform mechanism, this flexible platform mechanism includes little platform and flexible rail, wherein little platform is installed on the lift platform other end and this little platform can transversely slide relative lift platform under the drive of power supply, the top both sides of little platform are located to flexible rail, and the both ends of each flexible rail link to each other with the down pole of dead lever and little platform overhanging end department on the lift platform other end respectively to with synchronous stretching or shortening along with the slip of little platform.

The improved first driving mechanism comprises a first motor and a transmission gear connected with an output shaft of the first motor, and teeth which are circumferentially distributed and meshed with the transmission gear are arranged on an outer sleeve of the first bearing.

In order to improve the use safety of the invention and avoid potential safety hazards caused by the fact that the sleeve is separated from the third driving mechanism, the invention preferably further comprises a falling prevention device arranged beside the upright post, wherein the third driving mechanism is connected with the sleeve through the falling prevention device, the falling prevention device is provided with a clamping hook which can be clamped into clamping grooves distributed on the upright post from top to bottom, and the clamping hook is separated from the clamping groove in the state that the third driving mechanism is connected with the falling prevention device; and in a state that the third driving mechanism is disconnected with the anti-falling device, the clamping hook is clamped into the clamping groove, so that the sleeve, the lifting platform and the telescopic rotating arm mechanism are positioned on the upright post.

Preferably, the anti-falling device comprises a base, a clamping seat and an elastic piece, wherein the upper end of the clamping seat is connected with the third driving mechanism, the lower end of the clamping seat is provided with the clamping hook, the clamping seat is rotatably connected with the upper end of the base through a rotating shaft, and the base is fixed on an upper end cover of the sleeve; the elastic piece is a spring compressed in the spring seat, the spring seat is fixed on the base, the front end of the spring passes through the through hole on the base and then abuts against the clamping seat, so that the clamping hook on the clamping seat has a trend of being always clamped into the clamping groove, the bottom of the spring seat is further connected with an adjusting rod in a threaded manner, and the end part of the adjusting rod extending into the spring seat abuts against the rear end of the spring. So as to facilitate the operator to adjust the restoring force of the spring by rotating the adjusting lever.

It is further preferable that the third driving mechanism comprises a third motor, a sprocket fixed on an output shaft of the third motor, and a chain with an upper end fixed and capable of winding on the sprocket, the third motor is fixed on the top of the upright post, and the lower end of the chain is connected with the clamping seat. When the chain breaks, the longitudinal tension force on the clamping seat disappears instantaneously, and at the moment when the tension force disappears, the clamping seat is clamped into the clamping groove under the action of the spring, so that the sleeve and the lifting platform and the telescopic rotating arm mechanism on the sleeve are positioned on the upright post.

In each of the above schemes, the compressing and positioning device comprises:

the base frame is provided with a top plate and a bottom plate fixed on the telescopic arm, one end of the bottom plate is vertically provided with a supporting seat, and one end of the top plate is hinged to the supporting seat and can be opened and closed relative to the bottom plate so as to be convenient for adjusting pressure and placing the heat exchange tube;

the pinch roller is arranged in the base frame and can rotate around a first rotating shaft in the center of the pinch roller, and the first rotating shaft is supported on the top plate;

the positioning wheel is arranged in the base frame and can rotate around a second rotating shaft in the center of the positioning wheel, the second rotating shaft is supported on the bottom plate, the positioning wheel is positioned below the pressing wheel, a circumferential positioning groove is formed in the positioning wheel, and a space for a heat exchange tube to pass through is formed between the pressing wheel and the positioning groove of the positioning wheel; according to the invention, the positioning grooves on the circumferential surface of the positioning wheel are used for accurately positioning the winding pitch of the heat exchange tube, and meanwhile, the positioning wheel is convenient to be replaced at will according to the pitch requirement of the wound heat exchange tube, so that the winding requirements of various pitches are met, and the synchronous winding of double or multiple heat exchange tubes can be carried out by arranging the plurality of positioning grooves which are axially distributed at intervals, so that the winding efficiency is obviously improved.

And the tension adjusting device is connected between the other ends of the top plate and the bottom plate and is used for adjusting the pressure of the pressing wheel and the positioning wheel on the heat exchange tube, so that the problem of reduction of the pressing force caused by abrasion of the pressing wheel and the positioning wheel is solved.

As an improvement, the tension adjusting device is an adjustable reverse tension spring, the adjustable reverse tension spring comprises a connecting rod fixed at the bottom of the top plate, a reverse tension spring sleeved on the connecting rod, an upper sleeve sleeved outside the reverse tension spring and a lower sleeve, wherein the lower part of the upper sleeve is in threaded connection with the upper part of the lower sleeve, the lower part of the lower sleeve is fixed on the bottom plate, the upper end of the reverse tension spring is propped against a step arranged on the inner wall of the upper sleeve, and the lower end of the reverse tension spring is propped against the lower part of the connecting rod, so that the connecting rod always has a downward movement trend. Therefore, the adjustable counter-pulling spring can tighten the pressing wheel and the positioning wheel, and the proper pulling force is ensured by adjusting the distance between the upper sleeve and the lower sleeve, so as to be used for compressing the heat exchange tube.

In order to improve the compaction and positioning effects on the heat exchange tube, a plurality of pressing wheels and positioning wheels are respectively arranged in parallel at intervals, a plurality of positioning wheels are also arranged in parallel at intervals, and each positioning wheel is arranged below the space between two adjacent pressing wheels; for convenient installation, the first rotating shafts of the pressing wheels are respectively arranged on a first bearing seat in a rotating way through respective bearings, and the first bearing seat is fixed on the bottom surface of the top plate; the second rotating shafts of the positioning wheels are respectively arranged on a second bearing seat in a rotating mode through respective bearings, and the second bearing seat is fixed on the top surface of the bottom plate.

In the use process, the pinch roller and the positioning wheel are slightly worn to cause insufficient pressure on the heat exchange tube, and in order to eliminate the defect, the novel heat exchange tube further comprises two first damping sheets and two second damping sheets which force the pinch roller and the positioning wheel to be relatively close, wherein the two first damping sheets are respectively positioned at two sides of the pinch roller, and a first rotating shaft at the same side of the adjacent pinch roller is respectively propped against the upper surface and the lower surface of the first damping sheet at the side; the two second damping sheets are respectively positioned at two sides of the positioning wheel, and the second rotating shafts at the same side of the adjacent positioning wheels are respectively propped against the upper surface and the lower surface of the second damping sheet at the same side; the two ends of each first damping fin are respectively fixed on the top plate through first damping fin supports, and the two ends of each second damping fin are respectively fixed on the bottom plate through second damping fin supports.

Compared with the prior art, the invention has the advantages that: through arranging the upright post, the sleeve which is sleeved on the upright post and can only move up and down along the upright post, and the telescopic rotating arm mechanism and the lifting platform which are respectively connected to the upper part and the lower part of the sleeve, the telescopic rotating arm mechanism and the lifting platform can synchronously lift along with the sleeve, so that the height adjustment can be carried out according to the diameter of the core body, and the pipe winding quality is improved; the telescopic rotating arm mechanism comprises a rotating arm and a telescopic arm, and the telescopic arm is provided with a compressing and positioning device, so that the compressing and positioning device can rotate according to the spiral angle of the winding pipe, the distance between the outlet of the compressing and positioning device and the core body can be adjusted according to the diameter of the core body, the winding pipe is more accurate, and the operation is convenient; meanwhile, a plurality of tube winding discs (namely, a tube feeding mode is adopted) can be arranged on the rotating arm, and the plurality of heat exchange tubes can be synchronously wound through the compression positioning device, so that the tube winding efficiency is improved; and finally, the pipe winding vehicle is simple in structure and convenient to implement, can track the position of the pipe winding on the core body for multidirectional adjustment, and improves the quality and efficiency of pipe winding.

Drawings

FIG. 1 is a schematic view of a pipe winding vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic view of a tube winding vehicle according to another embodiment of the present invention;

FIG. 3 is a schematic view of a structure of a pipe winding vehicle in an operating state according to an embodiment of the present invention;

FIG. 4 is a schematic view of a partial structure of a pipe winding vehicle according to an embodiment of the present invention;

fig. 5 is an enlarged view of a portion C in fig. 1;

FIG. 6 is an enlarged view of portion B of FIG. 1;

fig. 7 is an enlarged view of the portion D in fig. 4;

FIG. 8 is a schematic view of a structure in which a column is installed in a mobile system according to an embodiment of the present invention;

FIG. 9 is a schematic view of an electric bicycle according to an embodiment of the present invention;

FIG. 10 is a front view of a press positioning device according to an embodiment of the present invention;

FIG. 11 is a left side view of FIG. 9;

FIG. 12 is a partial cross-sectional view of FIG. 10;

FIG. 13 is a cross-sectional view of a first bearing housing and a first damper mount of a compression positioning device in accordance with an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 13, the pipe winding vehicle comprises a stand column 1, an electric crane 2, a lifting output platform mechanism 3, a telescopic platform mechanism 4, a telescopic rotating arm mechanism 5 and a control system 6.

The bottom end of the upright post 1 is supported on the electric crane 2 and can axially move along the core 7, the electric crane 2 comprises a driving servo motor 21, driven chain wheels 22 arranged on two sides of the driving servo motor 21, a transmission chain 23 connected with the driven chain wheels 22 and a driving chain wheel 24 for driving an output shaft of the servo motor 21, and rolling steel wheels 25 coaxially arranged with the driven chain wheels 22, the rolling steel wheels 25 are supported on a lower rail 100 arranged on the ground, correspondingly, the top end of the upright post 1 is fastened on an upper rail 200 through a sliding wheel, and the upper rail 200 is fixed at the upper end of a factory building upright post so as to keep the upright post 1 vertical and stable. When the core 7 is wound, the upright post 1 is driven by the electric crane 2 to walk along the upper rail 200 and the lower rail 100, namely, walk along the core 7 in the axial direction. Please refer to fig. 1, 3, 8, and 9.

In order to simplify the structure and improve the use safety, the lifting output platform mechanism 3 comprises a lifting platform 31, a third driving mechanism 32 for driving the lifting platform 31 to move up and down, and a fall protection device 33, wherein, a sleeve 11 which can only move up and down along the upright post is sleeved on the upright post 1 (in order to enable the sleeve 11 to slide up and down on the upright post 1 smoothly and reduce friction, fixed pulleys 12 which are in rolling contact with the upright post 1 are arranged on the upper end surface and the lower end surface of the sleeve 11 in the embodiment), and one end of the lifting platform 31 is fixed at the lower part of the sleeve 11; as shown in fig. 6, the third driving mechanism 32 comprises a third motor 321, a sprocket 322 fixed on the output shaft of the third motor 321, and a chain 323 with the upper end fixed on the sprocket 322 and capable of winding around the sprocket 322, wherein the third motor 321 is fixed on the top of the upright 1, and the lower end of the chain 323 is connected with the sleeve 11 through a fall preventing device 33; as shown in fig. 3 to 5, the anti-falling device 33 includes a hook Y disposed beside the upright 1 and having a clamping groove X distributed from top to bottom, which can be clamped into the upright 1, and the hook Y is separated from the clamping groove X in a state that the third driving mechanism 32 is connected to the anti-falling device 33; in a state that the third driving mechanism 32 is disconnected from the anti-falling device 33, the clamping hook Y is clamped into the clamping groove X, so that the sleeve 11 and the lifting platform 31 are positioned on the upright 1; in this embodiment, the clamping groove X is a tooth slot of a rack fixed on the side wall of the upright 1, and the anti-falling device 33 has the following specific structure: the device comprises a base 331, a clamping seat 332 and an elastic piece 333, wherein the upper end of the clamping seat 332 is connected with the lower end of a chain 323 in a third driving mechanism, the lower end of the clamping seat 332 is provided with a clamping hook Y, the clamping seat 332 is rotatably connected with the upper end of the base 331 through a rotating shaft, and the base 331 is fixed on an upper end cover 111 of a sleeve 11; the elastic member 333 is a spring compressed in the spring seat 334, the spring seat 334 is fixed on the base 331, the front end of the spring passes through a through hole in the base 331 and then abuts against the clamping seat 332, so that the hook Y on the clamping seat 332 has a trend of always clamping into the clamping groove X, the bottom of the spring seat 334 is further in threaded connection with an adjusting rod 335 for conveniently adjusting the restoring force of the spring, and the end of the adjusting rod 335 extending into the spring seat 334 abuts against the rear end of the spring.

As shown in fig. 1 to 4, in order to facilitate the operator to walk back and forth between the lifting platform 31 and the operation platform 8 located beside the core 7 and ensure safety, the telescopic platform mechanism 4 includes two small platforms 41 and telescopic rails 42, wherein the two small platforms 41 are respectively mounted on two sides of the other end of the lifting platform 31, each small platform 41 can slide transversely relative to the lifting platform 31 under the driving of the power source 43, the two telescopic rails 42 are respectively disposed on two sides above each small platform 41, and two ends of each telescopic rail 42 are respectively connected with a fixing rod 311 on the other end of the lifting platform 31 and an upright rod 411 at the overhanging end of the corresponding small platform 41 so as to synchronously stretch or shorten along with the sliding of the small platform 41. The power source 43 includes a driving motor 431 and a first screw-nut pair 432, the driving motor 431 is fixed on the sleeve 11, an output shaft of the driving motor 431 is connected with a screw 432a in the first screw-nut pair 432, and a nut 432b in the first screw-nut pair 432 is connected with the small platform 41 and can drive the small platform 41 to do linear motion along the screw 432 a. In this embodiment, in order to enable each small platform 41 to slide smoothly on the lifting platform 31, two sliding grooves 312 extending along the sliding direction of the small platform 41 are provided on the lifting platform 31, and each small platform 41 is slidably mounted in each sliding groove 312 through a respective roller 44.

The telescopic boom mechanism 5 comprises a boom 51 and a telescopic boom 52, wherein one end of the boom 51 is supported on the upper part of the sleeve 11 through a first bearing 53, and the boom 51 can horizontally rotate relative to the upright 1 through a first driving mechanism 54, and the rotation angle is positive and negative 30 degrees; the telescopic arm 52 is inserted and matched in another end of the rotating arm 51, and the cross section of the contact surface of the telescopic arm 52 is square structure, the telescopic arm 52 can make axial telescopic movement relative to the rotating arm 51 under the drive of the second driving mechanism 55, in this embodiment, the first driving mechanism 54 includes a first motor 541, a transmission gear 542 connected with output shaft of the first motor 541, the above-mentioned first bearing 53 is equipped with teeth 531 which are meshed with the transmission gear 542 along the circumferential direction on the overcoat; the second driving mechanism 55 comprises a second motor 551 and a second screw-nut pair 552, the second motor 551 is fixed on the rotating arm 51, an output shaft of the second motor 551 is connected with a screw rod 552a in the second screw-nut pair 552, a nut 552b in the second screw-nut pair 552 is connected with the telescopic arm 52 and can drive the telescopic arm 52 to do linear motion along the screw rod 552a, so that the rotation of the rotating arm 51 and the telescopic motion of the telescopic arm 52 are controlled through the first motor 541 and the second motor 551 respectively, and the operation is convenient. See in particular figures 1-4 and 7.

For further convenience, the control system 6 is composed of a walking, lifting, rotating and telescopic structure control part, and the output end of the control system 6 is respectively connected with the driving servo motor 21, the third motor 321, the first motor 541, the second motor 551 and the driving motor 431 to control the driving servo motor 21, the third motor 321, the first motor 541, the second motor 551 and the driving motor 431 to operate.

In this embodiment, to improve the tube winding efficiency and realize simultaneous winding of the two tubes, two tube winding discs 10 (of course, a plurality of tube winding discs may be installed to realize multi-tube winding) for winding the heat exchange tube H are installed on two sides of the rotating arm 51, and a compressing and positioning device 9 for making the heat exchange tube H to be wound have a proper pre-tightening force is disposed on the telescopic arm 52, where the compressing and positioning device 9 includes a base frame 91, a pressing wheel 92, a positioning wheel 93 and a tension adjusting device 94.

The base frame 91 has a bottom plate 911 and a top plate 912 that can be opened and closed relatively, one end of the bottom plate 911 is erected with a supporting seat 913, and one end of the top plate 912 is hinged to the supporting seat 913. The bottom plate 911 is further provided with two telescopic supports 95, the upper ends of which are connected with the top plate 912, and the two telescopic supports 95 are respectively located at two sides of the supporting seat 913, preferably a piston rod of a hydraulic cylinder. When the telescopic supporting member 95 does work, one end of the top plate 912 can rotate relative to the supporting seat 913, so that the pressing wheel 92 connected to the top plate is far away from or near to the positioning wheel 93.

In this embodiment, there are a plurality of press wheels 92 and positioning wheels 93, and each positioning wheel 93 is disposed below between two adjacent press wheels 92. Wherein, the plurality of press wheels 92 are arranged in the base frame 91 at intervals in parallel and can respectively rotate around the first rotating shafts 921 in the centers of the respective press wheels 92, the first rotating shafts 921 of the plurality of press wheels 92 are respectively and rotatably arranged on the first bearing seats 96a through the respective bearings A, and the first bearing seats 96a are fixed on the bottom surface of the top plate 912; the positioning wheels 93 are also disposed in the base frame 91 at parallel intervals and are rotatable about respective second rotation shafts 931 at the centers of the positioning wheels 93, and the second rotation shafts 931 of the positioning wheels 93 are rotatably disposed on respective second bearing seats 96b via respective bearings a, the second bearing seats 96b being fixed to the top surface of the base plate 911. In order to accurately determine the pitch of the heat exchange tube H during winding, a plurality of circumferential positioning grooves 932 are provided on the positioning wheel 93 at equal intervals along the axial direction of the positioning wheel 93, and a space for the heat exchange tube H to pass through is formed between the pressing wheel 92 and the positioning grooves 932 of the positioning wheel 93, as shown in fig. 10 and 11. In order to increase the friction force of the pinch roller 92 and the positioning wheel 93 to the heat exchange tube H, the device further comprises two first damping sheets 97a and two second damping sheets 97b which force the pinch roller 92 and the positioning wheel 93 to be relatively close, wherein the two first damping sheets 97a are respectively positioned at two sides of the pinch roller 92, each first damping sheet 97a is connected to a first damping sheet support 98a after passing through a first rotating shaft 921 of each pinch roller 92 in a wave mode, namely, the first rotating shafts at the same side of the adjacent pinch rollers respectively prop against the upper surface and the lower surface of the first damping sheet at the side; similarly, two second damping fins 97b are respectively located at two sides of the positioning wheel 93, each second damping fin 97b is connected to the second damping fin support 98b after passing around the second rotation shaft 931 of each positioning wheel 93 in a wave manner, that is, the second rotation shafts on the same side of the adjacent positioning wheels respectively abut against the upper surface and the lower surface of the second damping fin on the same side, the first damping fin support 98a is connected to the top plate 912 through the first bearing seat 96a, and the second damping fin support 98b is connected to the bottom plate 911 through the second bearing seat 96b, specifically please refer to fig. 10, 12 and 13. In this embodiment, the pressing wheel 92 and the positioning wheel 93 are made of soft materials (such as nylon materials), so that the heat exchange tube is protected from damage in the whole process, and friction force is increased.

To adjust the pressure of pinch roller 92 and positioning roller 93 against heat exchange tube H, tension adjusting device 94 is coupled between the other ends of top plate 912 and bottom plate 911. The tension adjusting device 94 is an adjustable counter-pulling spring, which comprises a connecting rod 941 fixed at the bottom of the top plate 912, a counter-pulling spring 942 sleeved on the connecting rod 941, an upper sleeve 943 and a lower sleeve 944 sleeved outside the counter-pulling spring 942, wherein the lower part of the upper sleeve 943 is in threaded connection with the upper part of the lower sleeve 944, the lower part of the lower sleeve 944 is fixed on the bottom plate 911, the upper end of the counter-pulling spring 942 is propped against a step 9431 arranged on the inner wall of the upper sleeve 943, and the lower end of the counter-pulling spring 942 is propped against a flange at the lower part of the connecting rod 941, so that the connecting rod 941 always has a downward moving trend. When the pressing force of the pressing wheel 92 on the heat exchange tube H needs to be increased, only the upper sleeve 943 is required to be rotated downwards for a certain distance, and the step 9431 on the inner wall of the upper sleeve 943 also moves downwards, so that the counter-pulling spring 942 which is propped against the step 9431 is further compressed, and the downward force of the connecting rod 941 is further increased, so that the pressure of the pressing wheel 92 on the heat exchange tube H is increased; when the pressing force of the pressing wheel 92 on the heat exchange tube H needs to be reduced, only the upper sleeve 943 needs to be rotated upwards by a certain distance, so that the counter-pulling spring 942 is slightly loosened, the acting force on the connecting rod 941 is reduced, and the pressure of the pressing wheel 92 and the positioning wheel 93 on the heat exchange tube H is further reduced.

When the pipe is wound, as shown in fig. 3, the operation platform 31 and the core 7 to be wound are moved to the side of the pipe winding vehicle, the rotating arm 51 on the pipe winding vehicle is adjusted to the required height and angle, the telescopic arm 52 is adjusted, the distance between the compression positioning device 9 on the telescopic arm 52 and the core 7 meets the pipe winding requirement, and then the heat exchange pipes H on each pipe winding disc 10 pass through the compression positioning device 9, and the specific operation steps are as follows: the tension adjusting device 94 is released, the telescopic supporting piece 95 supports the top plate 912 and the pinch roller 92 connected with the top plate, the heat exchange tube H is placed in the positioning groove 932 of the positioning wheel 93 according to the winding pitch, the telescopic supporting piece 95 is contracted, the pinch roller 92 is placed above the positioning wheel 93 and compresses the heat exchange tube, and the tension adjusting device 94 is adjusted according to the required compressing force, so that the heat exchange tube can be wound.

As the winding of the pipe proceeds, under the control of the control system 6, the electric crane 2 walks along the axial direction of the core 7 on the upper and lower rails 200, 100 according to the speed of the winding of the pipe, and as the diameter of the core 7 becomes larger, the third motor 321 and the second motor 551 are controlled by the control system 6 to operate, so that the height of the pressing and positioning device 9 on the telescopic arm 52 is increased and still keeps a certain winding distance from the core 7, thereby ensuring the pipe winding efficiency and quality. In the pipe winding process, an operator can control the driving motor 431 to operate through the control system 6, and the first screw nut pair 432 connected with the driving motor 431 drives the small platform 41 to shrink backwards, so that the operator can walk between the operating platform 8 and the lifting platform 31 conveniently and the pipe winding process is not influenced.

Claims

1. The utility model provides a winding pipe car, includes the base member that can follow core (7) axial motion, installs lift platform (31) on the base member, its characterized in that: the base member is stand (1) that a lower extreme supported on electric bicycle (2), and cover is equipped with sleeve pipe (11) that only can follow stand reciprocates on this stand (1), the one end of lift platform (31) is fixed in the lower part of this sleeve pipe (11), including simultaneously:

the telescopic rotating arm mechanism (5) comprises a rotating arm (51) and a telescopic arm (52), one end of the rotating arm (51) is supported at the upper part of the sleeve (11) through a first bearing (53), the rotating arm (51) can horizontally rotate relative to the upright post (1) through a first driving mechanism (54), the telescopic arm (52) is in inserted connection with the other end of the rotating arm (51), the telescopic arm (52) can axially and telescopically move relative to the rotating arm (51) under the driving of a second driving mechanism (55), a pipe winding disc (10) for winding a heat exchange pipe (H) to be wound is arranged on the rotating arm (51), and a compaction positioning device (9) for enabling the heat exchange pipe (H) to be wound to have proper pretightening force is arranged on the telescopic arm (52);

and the third driving mechanism (32) is arranged on the upright post (1) and connected with the sleeve (11) and is used for driving the sleeve (11), the lifting platform (31) and the telescopic rotating arm mechanism (5) to move up and down.

2. The tube truck of claim 1, wherein: the telescopic lifting device is characterized by further comprising a telescopic platform mechanism (4), wherein the telescopic platform mechanism (4) comprises a small platform (41) and telescopic fences (42), the small platform (41) is arranged at the other end of the lifting platform (31), the small platform (41) can transversely slide relative to the lifting platform (31) under the driving of a power source (43), the telescopic fences (42) are arranged on two sides above the small platform (41), and two ends of each telescopic fence (42) are respectively connected with a fixed rod (311) at the other end of the lifting platform (31) and an upright rod (411) at the overhanging end of the small platform (41) so as to synchronously stretch or shorten along with the sliding of the small platform (41).

3. The tube truck of claim 1, wherein: the first driving mechanism (54) comprises a first motor (541) and a transmission gear (542) connected with an output shaft of the first motor (541), and teeth (531) which are circumferentially distributed and meshed with the transmission gear (542) are arranged on the outer sleeve of the first bearing (53).

4. The tube truck of claim 1, wherein: the anti-falling device (33) is arranged beside the upright post (1), the third driving mechanism (32) is connected with the sleeve (11) through the anti-falling device (33), the anti-falling device (33) is provided with a clamping hook (Y) which can be clamped into clamping grooves (X) distributed on the upright post (1) from top to bottom, and the clamping hook (Y) is separated from the clamping grooves (X) under the state that the third driving mechanism (32) is connected with the anti-falling device (33); in a state in which the third driving mechanism (32) is disconnected from the fall protection device (33), the hook (Y) is engaged into the engagement groove (X) so that the sleeve (11), the lifting platform (31) and the telescopic boom mechanism (5) are positioned on the upright.

5. The tube truck of claim 4, wherein: the anti-falling device (33) comprises a base (331), a clamping seat (332) and an elastic piece (333), wherein the upper end of the clamping seat (332) is connected with a third driving mechanism (32), the lower end of the clamping seat (332) is provided with a clamping hook (Y), the clamping seat (332) is rotatably connected to the upper end of the base (331) through a rotating shaft, and the base (331) is fixed on an upper end cover (111) of the sleeve (11); the elastic piece (333) is a spring compressed in the spring seat (334), the spring seat (334) is fixed on the base (331), the front end of the spring passes through a through hole in the base (331) and then abuts against the clamping seat (332), so that a clamping hook (Y) on the clamping seat (332) has a trend of always clamping into the clamping groove (X), the bottom of the spring seat (334) is further connected with an adjusting rod (335) in a threaded manner, and the end part of the adjusting rod (335) extending into the spring seat (334) abuts against the rear end of the spring.

6. The tube truck of claim 5, wherein: the third driving mechanism (32) comprises a third motor (321), a chain wheel (322) fixed on an output shaft of the third motor (321) and a chain (323) with the upper end fixed on the chain wheel (322), wherein the third motor (321) is fixed at the top of the upright post (1), and the lower end of the chain (323) is connected with the clamping seat (332).

7. A trolley according to any one of claims 1 to 6, wherein: the compressing and positioning device (9) comprises:

a base frame (91) having a top plate (912) and a bottom plate (911) fixed on the telescopic arm (52), wherein a supporting seat (913) is erected at one end of the bottom plate (911), and one end of the top plate (912) is hinged to the supporting seat (913) so as to be capable of opening and closing relative to the bottom plate (911);

a pressing wheel (92) arranged in the base frame (91) and capable of rotating around a first rotating shaft (921) in the center of the pressing wheel (92), wherein the first rotating shaft (921) is supported on the top plate (912);

the positioning wheel (93) is arranged in the base frame (91) and can rotate around a second rotating shaft (931) in the center of the positioning wheel (93), the second rotating shaft (931) is supported on the bottom plate (911), the positioning wheel (93) is positioned below the pressing wheel (92), a circumferential positioning groove (932) is formed in the positioning wheel (93), and a space for a heat exchange tube (H) to pass through is formed between the pressing wheel (92) and the positioning groove (932) of the positioning wheel (93);

and the tension adjusting device (94) is connected between the other ends of the top plate (912) and the bottom plate (911) and is used for adjusting the pressure of the pinch roller (92) and the positioning wheel (93) on the heat exchange tube (H).

8. The tube truck of claim 7, wherein: the tension adjusting device (94) is an adjustable reverse tension spring, the adjustable reverse tension spring comprises a connecting rod (941) fixed at the bottom of a top plate (912), a reverse tension spring (942) sleeved on the connecting rod (941), an upper sleeve (943) and a lower sleeve (944) sleeved outside the reverse tension spring (942), wherein the lower part of the upper sleeve (943) is in threaded connection with the upper part of the lower sleeve (944), the lower part of the lower sleeve (944) is fixed on the bottom plate (911), the upper end of the reverse tension spring (942) is propped against a step (9431) arranged on the inner wall of the upper sleeve (943), and the lower end of the reverse tension spring (942) is propped against the lower part of the connecting rod (941) to enable the connecting rod (941) to have a downward movement trend all the time.

9. The tube truck of claim 7, wherein: the two pressing wheels (92) and the two positioning wheels (93) are respectively arranged in parallel at intervals, the two pressing wheels (92) are also arranged in parallel at intervals, and each positioning wheel (93) is arranged below the position between two adjacent pressing wheels (92); the first rotating shafts (921) of the pressing wheels (92) are respectively arranged on a first bearing seat (96 a) in a rotating mode through respective bearings (A), and the first bearing seat (96 a) is fixed on the bottom surface of the top plate (912); the second rotating shafts (931) of the positioning wheels (93) are respectively rotatably arranged on second bearing seats (96 b) through respective bearings (A), and the second bearing seats (96 b) are fixed on the top surface of the bottom plate (911).

10. The tube truck of claim 9, wherein: the device also comprises two first damping sheets (97 a) and two second damping sheets (97 b) which force the pressing wheel (92) and the positioning wheel (93) to be relatively close, wherein the two first damping sheets (97 a) are respectively positioned at two sides of the pressing wheel (92), and a first rotating shaft (921) at the same side of the adjacent pressing wheel (92) is respectively propped against the upper surface and the lower surface of the first damping sheet (97 a) at the side; the two second damping sheets (97 b) are respectively positioned at two sides of the positioning wheel (93), and the second rotating shafts (931) at the same side of the adjacent positioning wheel (93) are respectively abutted against the upper surface and the lower surface of the second damping sheet (97 b) at the side; both ends of each first damping fin (97 a) are respectively fixed on the top plate (912) through a first damping fin support (98 a), and both ends of each second damping fin (97 b) are respectively fixed on the bottom plate (911) through a second damping fin support (98 b).