CN113714781B

CN113714781B - Automatic pipe penetrating machine for heat exchanger pipe bundle

Info

Publication number: CN113714781B
Application number: CN202111039482.8A
Authority: CN
Inventors: 张�林; 于双; 胡庚乐; 孟云龙; 张新宇; 张松; 石岩; 雷健; 韩明顺; 刘光胜; 汪梦; 张亚新; 张艺蔓
Original assignee: Shandong Dongyan Intelligent Technology Co ltd
Current assignee: Shandong Dongyan Intelligent Technology Co ltd
Priority date: 2020-09-07
Filing date: 2021-09-06
Publication date: 2022-06-17
Anticipated expiration: 2041-09-06
Also published as: CN113714781A; CN215697427U

Abstract

The invention relates to an automatic tube penetrating machine for a heat exchanger tube bundle. The method comprises the following steps: a frame having an open accommodating space; the conveying mechanism is used for conveying the heat exchange tubes and is arranged on the rack, and the rack drives the conveying mechanism to move in X, Y, Z three directions; the clamping mechanism is arranged on the conveying mechanism and drives the conveying mechanism to clamp the heat exchange pipe; the driving mechanism is connected with the conveying mechanism, the driving mechanism drives the conveying mechanism to rotate, the conveying mechanism is provided with two annular belts which are arranged up and down, an adjustable space for accommodating the heat exchange tube is formed between the two annular belts, and the annular belts are provided with grooves matched with the heat exchange tube in shape. According to the invention, the PLC is used for controlling the conveying mechanism to move in the three directions of XYZ, so that the automatic and accurate positioning of the heat exchange tube and the hole center of the hole plate is realized, the labor intensity of operators can be reduced, the number of the operators is reduced, and the manufacturing efficiency of the heat exchanger is improved.

Description

Automatic pipe penetrating machine for heat exchanger pipe bundle

Technical Field

The invention belongs to the technical field of heat exchanger processing, and particularly relates to an automatic pipe penetrating machine for a heat exchanger pipe bundle.

Background

A heat exchanger (also called heat exchanger) is a device that transfers part of the heat of a hot fluid to a cold fluid. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied.

The heat exchanger comprises a plurality of categories, wherein common types of tube heat exchangers comprise a fixed tube plate heat exchanger, a floating head heat exchanger and a U-shaped tube heat exchanger, the tube heat exchanger comprises different types of baffle plates such as square or round baffles according to actual requirements, the baffle plates are plates for changing the flow direction of fluid and are commonly used for designing a shell side medium flow passage of the tube heat exchanger, and the number of the baffle plates is determined according to the properties and flow of the medium and the size of the heat exchanger. The baffle is arranged on the shell side, and can improve the heat transfer effect and play a role in supporting the tube bundle. The baffle plate has two types of bow and disc-ring, the bow baffle plate has three types of single bow, double bow and three bow, dozens to ten thousand plate holes are arranged on the baffle plate, a heat exchange tube is arranged in each plate hole, and two ends of the heat exchange tube are fixed on the plate.

According to the regulation of GB/T151-2014, the allowable error range of the outer diameter of the heat exchange tube and the diameter of the tube plate is 0.25-0.65 mm, namely, the aperture error of the heat exchange tube and the tube plate is very small; simultaneously, a plurality of baffling boards and both sides tube sheet hole can have the equipment deviation in the axial, and heat exchange tube self is long and thin simultaneously, the quantity is many and baffling board quantity is many, and this alignment degree of difficulty that has just increaseed the poling action has increased the resistance that the heat exchange tube poling in-process received, and the problem that from this needs to solve includes: the problem of high precision of the conveying direction, the problem of alignment between the heat exchange tube and the tube hole and the problem of stable clamping of the heat exchange tube are solved;

moreover, the gravity of the heat exchange tube can cause large pressure to the components for conveying the heat exchange tube to cause deformation, and meanwhile, the problem that the heat exchange tube at the front end of the tube is low is caused.

Moreover, the heat exchange tube and the tube penetrating machine are abraded and damaged due to relative movement between the heat exchange tube and the tube penetrating machine in the tube penetrating process of the heat exchange tube, and the existing tube penetrating machine cannot continuously penetrate tubes.

In the prior art, the heat exchanger processing field does not have automatic pipe penetrating equipment, most of the heat exchanger processing field can only depend on manpower pipe penetrating, but along with the increase of the social development labor cost, the contradiction between the working requirement and the manpower resource in the heat exchange pipe penetrating field is increasingly shown.

Compared with other pipe fittings, the heat exchanger pipe fitting has the characteristics of long length, large quantity and large weight, and the problems of low head of a heat exchange pipe, high collimation degree of a conveying direction, alignment of the heat exchange pipe and a pipe hole, stable clamping of the heat exchange pipe, synchronous movement of simultaneous penetration of multiple pipes and the like in the pipe penetrating process are solved while automatic pipe penetration is realized.

Chinese patent CN1026016604B discloses a mechanical pipe penetrating machine applied to the field of chemical containers. Its poling machine includes: the rubber-coated transmission wheel group clamps the pipe fitting through the upper and lower matched rubber-coated transmission wheel groups and supports the straight pipe to be inserted through the straight pipe positioning pulley frame. The rubber-coated transmission wheel set is fixedly arranged on the upper cover and the lower cover respectively, and the straight pipe positioning pulley frame only has a supporting function on the straight pipe and does not have an auxiliary clamping function; the pipe threading machine disclosed in this patent has the following disadvantages: firstly, the clamping action end of the straight pipe is only the rubberizing driving wheel part, the action area is small, the stable clamping and conveying effect on the pipe fitting is difficult to guarantee, and the rubberizing driving wheel is not suitable for a heavy heat exchange pipe; for the above reasons, it is not possible to use batch heat exchanger tubes.

Chinese patent CN203714960U discloses a drip tube traction device, the application field of which is drip irrigation tube processing field, and is used for drip irrigation tube rolling operation. The drip irrigation pipe clamping device is characterized in that the upper pressing wheel group and the lower supporting wheel are matched up and down to clamp a drip irrigation pipe, a conveying belt is arranged on the pressing wheel group and the lower supporting wheel, and a V-shaped groove is formed in the conveying belt. The drip irrigation pipe belongs to a soft pipe, and the traction device disclosed in the patent mainly plays a role in conveying the drip irrigation pipe, so that a pipe inserting process does not exist. The technical content disclosed in this patent is not applicable to heat exchange tube insertion tubes because: because what carry is the soft pipe (the pipe itself has the deflection), and need not guarantee direction of delivery's precision, do not need upper and lower clamping structure to have higher tight fit degree of clamp, and also need not carry out special design to the shape of notch on the conveyer belt.

Japanese patent No. CN1178897A discloses a heat exchanger tube assembling apparatus and assembling method, in which a tubular device having a pushing cylinder for pushing an operating rod toward a partition plate side and a pushing member attached to the end of the operating rod by a load cell is provided at the end of a tube insertion machine for inserting a U-shaped tube, and the tube is pushed toward the partition plate to a final position. The air cylinder for pushing disclosed by the patent pushes the tail end of the U-shaped pipe through the thrust piece, but because the diameters of the U-shaped pipes on one baffle plate are different, and the lengths of the U-shaped pipes are different, the U-shaped pipes can only be penetrated one by one, the efficiency is low, and meanwhile, the thrust of the air cylinder is limited and cannot overcome the resistance in the pipe penetrating process of a plurality of heat exchange pipes; for the above reasons, it cannot be used with a heat exchanger tube.

In addition, the heat exchange tube penetrating machine can simultaneously penetrate a plurality of heat exchange tubes, and the clamping and conveying strength of the conveying mechanism is limited, so that the uniform clamping force on each heat exchange tube is hardly ensured. This just leads to the fact easily, and the heat exchange tube that the clamp is measured closely is high, carries stably, and the heat exchange tube that the clamp is measured closely lowly can appear carrying the hysteresis, causes the multitube to carry asynchronous.

When being used for the heat exchange tube poling with conveying mechanism, if the problem of synchronism can not be solved, will cause the heat exchange tube can not penetrate the baffling board in step, the heat exchange tube of lag transport needs manual operation to accomplish to spread into the baffling board, perhaps, the heat exchange tube direction of delivery of lag transport takes place the skew, causes and can not insert baffling board heat transfer hole.

Based on the above, the applicant believes that the pipe conveying structure in the prior art is not suitable for the pipe penetrating operation of the heat exchanger. The field of heat exchange tube threading urgently needs an automatic tube threading machine which can realize clamping alignment of a heat exchange tube in the tube threading process, effectively prevent the heat exchange tube from being worn in the tube threading process and realize continuous tube threading.

Disclosure of Invention

The invention aims to solve one of the technical problems and provides automatic heat exchanger tube penetrating equipment, so that the manual intervention degree is reduced, a plurality of heat exchange tubes can be simultaneously and synchronously inserted, and the production efficiency of the heat exchange tubes is improved.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides an automatic poling machine of heat exchanger tube bundle intelligence automatic heat exchanger tube bundle, includes:

a frame having an open accommodating space;

the conveying mechanism is used for conveying a plurality of heat exchange tubes, is arranged on the rack, and drives the conveying mechanism to move in X, Y, Z directions;

the clamping mechanism is arranged on the conveying mechanism and drives the conveying mechanism to clamp the heat exchange pipe;

the driving mechanism is connected with the conveying mechanism and drives the conveying mechanism to rotate;

the fixture includes:

the first clamping roller is arranged at one end of the conveying mechanism;

the first clamping frame is connected with the first clamping roller;

the second clamping roller is arranged at the other end of the conveying mechanism;

the second clamping frame is connected with the first clamping roller;

the clamping driving piece is connected with the first clamping frame or the second clamping frame and drives the first clamping frame or the second clamping frame to move up and down;

the conveying mechanism is provided with two annular belts which are arranged up and down, an adjustable space for accommodating the heat exchange tube is formed between the two annular belts, and the two annular belts are respectively connected with the first clamping roller and the second clamping roller; and the annular belt is provided with a groove matched with the shape of the heat exchange tube.

Preferably, the guide structure further comprises at least one set of guide structures, and the guide structures comprise:

a guide structure shell: the mounting structure comprises a first side wall and a second side wall which are oppositely arranged at intervals, wherein a first shaft mounting structure and a second shaft mounting structure are arranged on the first side wall at intervals along the height direction of the first side wall, and a third shaft mounting structure and a fourth shaft mounting structure are correspondingly arranged along the height direction of the second side wall;

the first roller assembly: the wheel roller structure comprises a first wheel shaft and a first wheel roller arranged on the wheel shaft, wherein a plurality of wheel grooves are arranged on the first wheel roller at intervals, and two ends of the first wheel shaft are respectively arranged in a first shaft mounting structure on a first side wall and a third shaft mounting structure on a second side wall and can rotate relative to the shaft mounting structures;

the second roller assembly: the wheel assembly comprises a second wheel shaft and a second wheel roller arranged on the wheel shaft, wherein a plurality of wheel grooves are arranged on the second wheel roller at intervals, and two ends of the second wheel shaft are respectively arranged in a second shaft mounting structure on the first side wall and a fourth shaft mounting structure on the second side wall and can rotate relative to the shaft mounting structures;

the first wheel roller groove is matched with the second wheel roller groove to form a roller groove gap which is used as a pipe fitting clamping space; a pipe fitting inlet and a pipe fitting outlet are respectively formed on two opposite sides of the guide structure shell and the pipe fitting clamping space; the wheel well gap is opposite the groove.

Preferably, the device comprises two groups of tube bundle guiding structures and a transition structure;

the transition structure includes:

the base body is arranged at the pipe fitting inlet end of the guide structure shell, and a through hole is formed in the base body along the direction from the first end part to the second end part;

the first tube bundle guiding structure and the second tube bundle guiding structure are connected through the transition structure, and the through holes are aligned with the wheel groove gaps of the first tube bundle guiding structure and the wheel groove gaps of the second tube bundle guiding structure, so that the pipe fittings can pass through the second tube bundle guiding structure, the transition guiding structure and the first tube bundle guiding structure; the wheel-slot gap of the first tube bundle guide structure is aligned with the slot.

Preferably, the clamping mechanism further comprises a clamping and centering rod, the clamping and centering rod is connected with the first clamping frame or the second clamping frame, and the clamping driving member drives the first clamping frame or the second clamping frame to move up and down along the clamping and centering rod.

Preferably, a pushing plate is arranged on a side wall of the guiding structure shell on one side of the guiding structure where the pipe outlet of the guiding structure is located, the pushing plate is in shaft joint with the guiding structure shell on the pipe outlet side, the shaft joint of the pushing plate and the guiding structure shell is located above the pipe outlet, and the pushing plate is configured in size as follows: when the guide structure rotates downwards, the guide structure can cover the outlet of the pipe fitting and is attached to the side wall of the guide structure shell; the tube bundle guiding structure provided with the pushing plate is arranged at the output end of the heat exchange tube of the conveying mechanism, and the wheel groove gap is aligned with the groove.

Preferably, the annular belt is provided with a plurality of grooves arranged in the width direction, each groove is a radian groove with the radian smaller than pi, and a section of straight part is arranged between every two adjacent grooves.

Preferably, the pipe conveying device further comprises an active clamping pipe conveying mechanism, and the active clamping pipe conveying mechanism comprises:

the frame is provided with an accommodating space;

the cross beam is arranged at the top of the frame;

the pipe pressing mechanism is arranged in the accommodating space;

one end of the pipe pressing driving mechanism is connected with the cross beam, the other end of the pipe pressing driving mechanism is fixedly connected with the pipe pressing mechanism, and the pipe pressing driving mechanism drives the pipe pressing mechanism to move along the frame relative to the cross beam;

the auxiliary pipe pressing mechanism is fixedly arranged below the frame relative to the pipe pressing mechanism;

each group of rollers comprises an auxiliary roller arranged on the auxiliary pipe pressing mechanism and a driving roller arranged on the pipe pressing mechanism, and a pipe pressing adjustable space is formed between the auxiliary roller and the driving roller;

the roller driving piece is connected with the driving roller and drives the driving roller to rotate;

and the pipe outlet end of the pipe pressing adjustable space is aligned with the groove.

Preferably, the frame of the active clamping pipe conveying mechanism and the frame of the pipe penetrating machine are arranged on the same multi-degree-of-freedom motion platform, and the frame can be driven to move synchronously.

Preferably, the device further comprises a roller type conveying mechanism, which is arranged at the front end of the active clamping pipe conveying mechanism and comprises:

a base;

the support structure is as follows: is arranged on the base;

a roller carrier: at least two groups of sliding fit structures are arranged between the carrier roller frame and the support structure along the length direction of the carrier roller frame, and the carrier roller frame can generate relative motion with the support structure along the sliding fit structures;

carrying out roller: the number of the supporting roller frames is a plurality of, and the supporting roller frames are arranged in parallel at intervals along the length direction of the supporting roller frames and are arranged on the supporting roller frames;

a motion driving mechanism: and the supporting roller frame is connected with the supporting roller frame so as to drive the supporting roller frame to move along the support structure.

The conveying direction of the roller type conveying mechanism is opposite to the groove.

Preferably, a laser sensing device is installed on a rack of the pipe penetrating machine, and the light emitting direction of the laser sensing device faces to the side end face of one side of the pipe penetrating conveying mechanism facing the base; the laser sensing device can emit laser and receive side end surface refracted light;

a lifting driving mechanism is arranged below the base;

the pipe penetrating machine control system receives the sensing signal of the laser sensing device and controls the lifting driving mechanism to act on the premise that the laser sensing device does not receive the refracted light signal so as to adjust the height of the base.

Preferably, the apparatus further comprises a synchronous conveyance detection control means including:

shaft: the conveying mechanism is arranged on the pipe penetrating machine and is positioned at the output end of the conveying mechanism;

a guide plate: the number of the heat exchange tubes is a plurality of heat exchange tubes, the heat exchange tubes are matched with the number of the heat exchange tubes which can be conveyed by the tube penetrating machine at the same time, and the heat exchange tubes are rotatably connected with the shaft;

a detection wheel: each detection wheel can be contacted with the top of one conveyed heat exchange tube;

the coding sensor comprises: the radial extension end is arranged on each guide plate and positioned on the peripheral surface of each detection wheel, and the rotation data of the peripheral surface of each detection wheel is detected;

and the pipe penetrating machine control system is connected with each coding sensor to acquire rotation data of each detection wheel.

Preferably, the detection wheel comprises:

a first wheel body: is a gear;

a second wheel body: the roller is coaxially connected with the first roller body and is contacted with the top of the conveying heat exchange pipe;

the coding sensor is positioned at the radial extending end of the peripheral surface of the first wheel body.

Preferably, the output end of the conveying mechanism is provided with a tube bundle guide mechanism, the shaft is arranged on a shell of the guide mechanism, and the detection wheel is positioned at the outlet end of the pipe fitting and is in contact with the heat exchange pipe.

Preferably, a transition guide mechanism is arranged at the outlet end of the pipe fitting of the guide mechanism, a hollow part is arranged on the upper end face of the base body of the transition guide mechanism, the hollow part is communicated with the through hole, the size of the hollow part is configured to expose all output heat exchange pipes, and the detection wheel is positioned at the hollow part so as to enable the detection wheel to be in contact with the heat exchange pipes to be conveyed.

Preferably, the drive mechanism includes:

a first belt roller installed at one side of the endless belt,

the second belt roller is arranged on the same side of the other annular belt;

a transmission member disposed between the first belt roller and the second belt roller;

the driving piece is connected with the first belt roller or the second belt roller and drives the first belt roller or the second belt roller to rotate through a transmission piece, so that the two annular belts move reversely and synchronously.

Preferably, the transmission member includes two transmission wheels engaged with each other, and the two transmission wheels are coaxially connected with the first belt roller and the second belt roller, respectively.

Preferably, the rack includes:

the main frame is provided with a main driving piece;

the Y support is provided with a Y driving piece, the Y support is installed on the main frame, and the main driving piece drives the Y support to do linear reciprocating motion along the main frame;

the X bracket is provided with an X driving piece, the X bracket is arranged on the Y bracket, and the Y driving piece drives the X bracket to do linear reciprocating motion along the Y bracket on the horizontal plane;

the pipe penetrating support is arranged on the X support, the conveying mechanism is arranged on the pipe penetrating support, and the X driving piece drives the pipe penetrating support to drive the conveying mechanism to do linear reciprocating motion along the vertical direction of the movement of the X support.

Compared with the prior art, the invention has the advantages and positive effects that:

1. the control system controls the conveying mechanism to move in X, Y, Z three directions, automatic accurate positioning of the hole centers of the heat exchange tube and the hole plate is achieved, mechanical driving is adopted for continuous pipe penetration, and compared with manual pipe penetration, labor intensity of operators can be reduced, the number of the operators is reduced, cost is saved, and the manufacturing speed of the heat exchanger can be increased due to the fact that the mechanical pipe penetration speed is higher than the manual pipe penetration speed, and economic benefits are improved.

2. The conveying mechanism can be arranged in a manner that an annular belt is flexibly clamped, and the heat exchange tube automatically penetrates in the tube inserting process, so that the scratch, deformation and damage of the heat exchange tube are effectively avoided; the upper and lower grooves are both provided with notches of less than 180 degrees, and through clamping fit between the upper second annular belts, interference fit between the clamping grooves can be realized, the clamping degree of the heat exchange tube can be ensured, so that the conveying flatness of the heat exchange tube is ensured, and alignment of the heat exchange tube and a plate hole is facilitated;

3. the conveying mechanism can also be arranged to adopt a crawler belt structure. Compare annular belt's upper and lower centre gripping cooperation mechanism, through the cooperation of the flexible backing plate of rigid grip-pad cooperation, can guarantee better tight cooperation degree of pressing from both sides, can improve single intubate quantity.

4. Through the matching of the conveying mechanism and the front and rear guide mechanisms of the conveying mechanism, the heat exchange tube can be conveyed and guided when entering the pressing conveying unit and being output from the pressing conveying unit, so that the alignment of the heat exchange tube and a plate hole is ensured;

5. through setting up the supplementary guide of direction awl, can guarantee even the head of heat exchange tube deviates from the normal scope and still can guarantee the alignment degree of heat exchange tube and diaphragm orifice to guarantee the continuity of poling. Generally, the normal range refers to deviation of the heat exchange tips less than the management radius.

6. According to the invention, a plurality of heat exchange tubes are simultaneously inserted into the plate holes of the baffle plate of the heat exchanger at one time, the tube inserting speed is high, the manufacturing efficiency of the heat exchanger is improved, the cost is saved, and the economic benefit is improved.

7. Through adjustment fixture, can realize the centre gripping to the heat exchange tube of different specifications, the suitability is strong.

8. After the position of the device is adjusted according to various specification parameters of the baffle plate, one group of heat exchange tubes can be automatically aligned with each hole of the baffle plate and penetrate through the holes, and after one group of tubes penetrate through the holes, the other group of heat exchange tubes are automatically aligned to the position to be penetrated through by program control, so that semi-automatic tube penetration is realized, and the working efficiency is improved.

9. Further, through the matching of the front and rear guide mechanisms, the heat exchange tubes can be conveyed and guided when entering the pressing and conveying unit and being output from the pressing and conveying unit, so that the alignment of the heat exchange tubes and the plate holes is ensured;

10. through the cooperation of the carrier roller type conveying mechanism and the active clamping pipe conveying mechanism, stable front-end conveying of the heat exchange pipe can be realized.

11. The synchronous detection control mechanism is configured, the rotation data of the detection wheels are obtained through the encoder, and whether the heat exchange tubes are synchronously conveyed or not can be judged according to the comparison of the rotation data of the multiple detection wheels, so that the machine is stopped and adjusted under the condition of delayed conveying. The detection wheel adopts a double-wheel structure, has double functions, is partially used for detecting the auxiliary encoder, is partially used for clamping the auxiliary conveying heat exchange tube, and can be driven to rotate by the conveying heat exchange tube while clamping.

12. The synchronous detection control mechanism comprises a tension spring structure, and can position the detection wheel to ensure the contact between the detection wheel and the conveying heat exchange tube and further ensure the accuracy of a detection result.

Drawings

FIG. 1 is a first schematic structural view of an active clamping tube feeding mechanism;

FIG. 2 is a second schematic structural view of the active clamping tube feeding mechanism;

FIG. 3 is a schematic view of a tube bundle guide structure;

FIG. 4 is a first structural schematic diagram of a pipe pressing mechanism;

FIG. 5 is a structural diagram II of the pipe pressing mechanism;

FIG. 6 is a cross-sectional view of the adjustment member;

FIG. 7 is a first schematic structural view of a connecting plate;

FIG. 8 is a second schematic structural view of a connecting plate;

FIG. 9 is an enlarged view of the pin through hole and the stud through hole;

FIG. 10 is a schematic view of the pressing drive mechanism;

FIG. 11 is a schematic view of the installation of a pipe threading line;

fig. 12 is a schematic structural view of the roller conveyor.

FIG. 13 is a partial enlarged view of a structure of the carrier roller frame and the bracket;

FIG. 14 is a schematic view of a roller conveyor with a guard;

FIG. 15 is a first schematic diagram of the overall structure of an automatic tube threading machine for tube bundles of automatic heat exchangers;

FIG. 16 is a schematic diagram of the overall structure of an automatic tube threading machine for tube bundles of automatic heat exchangers;

FIG. 17 is a first partial schematic structural view of an automatic tube threading machine for tube bundles of automatic heat exchangers;

FIG. 18 is a second schematic view of a partial structure of an automatic tube threading machine for tube bundles of automatic heat exchangers;

FIG. 19 is a third schematic view of a portion of an automatic pipe threading machine;

FIG. 20 is a schematic view of the seeker configuration;

FIG. 21 is a schematic view of a guide mechanism configured with a transitional guide mechanism;

FIG. 22 is a first perspective view of the two sets of guiding mechanism engaging structure;

FIG. 23 is a second perspective view of the two sets of guiding mechanism cooperating structures;

FIG. 24 is a schematic view of a first perspective of a guide mechanism with a pusher plate;

FIG. 25 is a schematic view of a second perspective of the guide mechanism with the push plate;

FIG. 26 is a structural diagram of a base with a scissor lift mechanism in a lowered position;

FIG. 27 is a structural view of the base with a scissor lift mechanism in a raised position;

FIG. 28 is a schematic view of the pedestal and the laser sensing device;

FIG. 29 is a schematic view of the pedestal and the laser sensing device;

FIG. 30 is a schematic view of a first perspective structure of the synchronous feeding detection control mechanism;

FIG. 31 is a schematic view of a second perspective structure of the synchronous feeding detection control mechanism;

FIG. 32 is a schematic view of a third perspective structure of the synchronous feeding detection control mechanism;

FIG. 33 is a schematic view of a fourth perspective structure of the synchronous feeding detection control mechanism;

FIG. 34 is a schematic view of a fifth perspective of the synchronous feeding detection control mechanism;

FIG. 35 is a schematic view of the detection wheel mounting structure;

FIG. 36 is a schematic view of the structure of the detection wheel;

FIG. 37 is a schematic view of a synchronous feeding detection control mechanism configured with a push plate;

in the above figures:

1, a base; 2, a roller frame; 3, carrying rollers; 4, a carrier roller support; 5, a motor; 6, a lead screw; 7, a sliding block;

801 a first support; 802 a second support; a first slider 201 and a second slider (not shown),

201 a first slider; 803 a first i-beam; 902 protecting plates;

9011 support leg; 9012 longitudinal beam; 10 a frame; 11 a cross beam; 12 a pipe pressing mechanism;

13 pressing the tube driving mechanism; 14 auxiliary pipe pressing mechanism; 1501 rollers; 1502 a roller driver;

1503 driving gear; 1504 a driven gear;

1601 a shell; 1602 a first sidewall; 1603 second side wall;

1604 a first axle mounting structure; 1605 a second shaft mounting structure; 1606 a third axle mounting structure;

1607 a fourth axis mounting structure; 1608 a first roller assembly; 1609 a second roller assembly;

1610 a fixing member; 1612. an empty part;

1201 connecting the plates; 1202 mounting the plate; 1204 an adjustment member;

12041 columnar structure; 12042 upright post; 12043 a spring; 12044 dowel through holes;

12045 upright post through holes; 12011 a recessed structure; 12012 through holes; 1301 passes through the through hole;

1302 an oil inlet; 1303 oil outlet; a, a roller type conveying mechanism; b, an active clamping pipe conveying mechanism;

c, automatically threading a tube bundle of the heat exchanger;

17. a conveying mechanism; 1701. An upper belt body; 1702. a lower belt body;

1703. a first endless belt; 1704 a second endless belt; 18. a clamping mechanism;

1801. a first clamping roller; 1802. a first holding frame; 1803. a second clamping roller;

1804. a second holder; 1806. Clamping the driving member; 1807. the holding and righting rod is clamped on the upper part of the frame,

1901. a first belt drum; 1902. a second belt roller;

1903. a transmission member; 1904. A drive member; 1905. belt driving wheel

2001. A main frame; 2002. A primary drive member;

2003. a Y bracket; 2005. An X bracket; 2007. A pipe-penetrating bracket;

21. a tensioning mechanism; 2101. A tensioning roller; 2102. A tension chain wheel;

2103. tensioning the screw rod; 22. A heat exchange tube; 23. A heat exchanger orifice plate support;

24. a tube sheet; 25. A baffle plate; 26. A pipe pushing mechanism;

2605. a tube entry; 2606. a tube outlet; 29. a substrate; 2901. a through hole;

30. a first tube bundle guide structure; 31. a second tube bundle guide structure;

32. a first transition structure; 33. a second transition structure; 34. a push plate; 35. a guide cone;

3501. a conical head; 3502. a tapered rod; 3503. a rubber ring; 3504. an aperture;

36. a scissor fork lifting mechanism; 37. a laser sensing device;

38. a shaft; 3801. a shaft mounting block; 3802. a shaft seat; 39. a guide plate; 3901. a guide plate mounting block;

40. a detection wheel 4001, a first wheel body 4002 and a second wheel body; 41. a code sensor;

42. a tension spring; 43. a data line;

Detailed Description

The technical solutions in the embodiments of the present invention will be fully described in detail below with reference to the accompanying drawings. It is obvious that the described embodiments are only some specific embodiments, not all embodiments, of the general technical solution of the present invention. All other embodiments, which can be derived by a person skilled in the art from the general idea of the invention, fall within the scope of protection of the invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

as shown in fig. 15 to 19, the present invention provides an automatic tube threading machine C for a heat exchanger tube bundle, which includes a rack, a conveying mechanism 17, a clamping mechanism 18, a driving mechanism, and a control system, wherein the control system is configured to control the automatic tube threading machine for the heat exchanger tube bundle, and is preferably a PLC controller or an industrial personal computer control system, and the industrial personal computer control system includes, but is not limited to, a single chip microcomputer. The frame is provided with an open accommodating space and comprises a main frame 2001, a Y support 2003, an X support 2005 and a pipe penetrating support 2007, wherein the main frame 2001 is a four-column frame structure formed by a front main body frame, a rear main body frame and two main body side plates, the four-column frame structure is placed on the ground, and the automatic pipe penetrating machine for the automatic heat exchanger pipe bundle can be fixed in the horizontal position by adjusting foundation studs at four corners of the four-column frame structure. Sliding rails are arranged on four columns of the main frame 2001, sliding blocks are arranged on the sliding rails, lifting side plates are further arranged on the sliding blocks, vertically-arranged main driving pieces 2002 are arranged at the centers of the two main body side plates respectively, the main frame 2001 is connected with the Y support 2003 through the lifting side plates on the two sides, and the main driving pieces 2002 drive the Y support 2003 to do linear reciprocating motion along the sliding rails;

the Y support 2003, the X support 2005 and the poling support 2007 are horizontally placed platforms with the sizes sequentially reduced, sliding rails are mounted on the front side and the rear side of the Y support 2003, sliding blocks are mounted on the sliding rails, the X support 2005 is mounted on the sliding blocks, Y driving parts are placed on the left and right of the middle of the Y support 2003, and the Y driving parts drive the X support 2005 to do linear reciprocating motion along the sliding rails;

the left side and the right side of the X support 2005 are provided with slide rails, the slide rails are provided with slide blocks, the slide blocks are provided with tube penetrating supports 2007, an X driving part which is perpendicular to the Y driving part is arranged in the middle of the X support 2005, the tube penetrating supports 2007 are provided with conveying mechanisms 17, and the X driving part drives the tube penetrating supports 2007 to drive the conveying mechanisms 17 to do linear reciprocating motion along the vertical direction of the motion of the X support 2005.

In this embodiment, the driving members are all configured as a motor and a lead screw, and the motor drives each connecting bracket to reciprocate linearly along the lead screw.

The conveying mechanism 17 moves in a three-dimensional space along with the main frame 2001, the Y support 2003, the X support 2005 and the tube penetrating support 2007, and accurate positioning of tube penetrating motion is achieved.

According to the embodiment of the application, X, Y, Z movement in three directions can be realized, compared with Chinese patent CN1026016604B, the movement in the X, Z axis direction is provided, and by increasing the movement in the Y axis direction, the conveying mechanism and the mechanism on the conveying mechanism can act on the Y axis, so that the complete tube penetration of the heat exchange tube can be realized.

The conveying mechanism 17 in this embodiment includes an upper belt body 1701, a lower belt body 1702, and two endless belts, where the two endless belts are respectively a first endless belt 1703 and a second endless belt 1704, and the two endless belts are respectively installed on the upper belt body 1701 and the lower belt body 1702, an adjustable space for accommodating the heat exchange tube 22 is formed between the two endless belts, and the endless belts are provided with a plurality of grooves arranged along the tube penetrating direction of the heat exchange tube, and the grooves are matched with the heat exchange tube 22 in shape and used for placing the heat exchange tube 22, so as to realize flexible conveying of the heat exchange tube 22, and reduce damage to the heat exchange tube 22.

The radian of an arc-shaped groove of the groove on the annular belt is set to be less than or equal to pi, a straight part is arranged between the grooves, the annular belt is made of elastic materials, for example, rubber can be adopted, and the clamping stability is ensured by utilizing the resilience deformation performance of the elastic materials;

the selection can ensure that after the relative position between the first annular belt 1703 and the second annular belt 1704 is adjusted, the straight parts of the two annular belts are attached together in the state of matching of the first annular belt and the second annular belt, so that interference fit is realized, the heat exchange tube 22 is clamped, stable clamping of the heat exchange tube is realized, the heat exchange tube or the annular belts is prevented from being abraded due to relative movement between the heat exchange tube and the annular belts in the tube penetrating process, the tube penetrating machine cannot continuously penetrate tubes or irreversibly damage the heat exchange tube, the heat exchange tube cannot be normally used, and the sustainability of the tube penetrating action of the automatic tube penetrating machine for the tube bundle of the heat exchanger is also ensured to a certain extent; meanwhile, the width of the straight part corresponds to the aperture of the baffle plate, the position of the heat exchange tube in the tube penetrating process is limited, and the alignment of the heat exchange tube is assisted.

Set up the slot of angle less than or equal to 180 degrees on the annular belt, compare in CN203714960U patent action wheel, follow the last complex anti-skidding V type groove of driving wheel and conveyer, set up on the conveyer with pipe fitting direction of motion vertically V type groove, set up the slot the same with pipe fitting direction of motion on the annular belt, can guarantee more tight cooperation degree, press from both sides tight heat exchange tube.

In order to prevent the phenomenon that the belt vibrates and climbs the belt when the pipe penetrating resistance is large and the pipe penetrating speed is high, two groups of limiting parts can be additionally arranged in front of and behind the annular belt, the limiting parts can be set to be limiting wheels, one side of each limiting part is installed on the frame, and the other side of each limiting part is connected with the inner side of the annular belt.

The clamping mechanism 18 is installed on the conveying mechanism 17 and located between the two annular belts, the clamping mechanism 18 drives the annular belts to achieve flexible clamping action on the heat exchange tubes 22, deformation of the annular belts due to the increase of the heat exchange tubes 22 is prevented, and the annular belts can bear larger force to convey more heat exchange tubes 22.

Further, in some embodiments of the present invention, pressure control or pressure sensing elements may optionally be provided on the first endless belt 1703 or the second endless belt 1704 for better control of the relative clamping between the upper and lower endless belts. For example, a pressure sensor may be optionally provided to detect the degree of clamping between the upper and lower endless belts; in some embodiments, the hydraulic control element may be selected to set a hydraulic adjustment value of the hydraulic control unit to adjust the degree of clamping of the upper and lower endless belts, for example, to 0.3 Mpa.

The clamping mechanism 18 specifically comprises a first clamping roller 1801, a first clamping frame 1802, a second clamping roller 1803, a second clamping frame 1804 and a clamping driving member 1806, the first clamping frame 1802 and the second clamping frame 1804 are both arranged in a door-shaped structure, the first clamping frame 1802 and the second clamping frame 1804 are oppositely arranged and respectively connected with the upper belt conveyor body 1701 and the lower belt conveyor body 1702 in a buckling manner, the first clamping roller 1801 is arranged at a connecting space of the first clamping frame 1802 and the upper belt conveyor body 1701, the second clamping roller 1803 is arranged at a connecting space of the second clamping frame 1804 and the lower belt conveyor body 1702, the clamping driving member 1806 is connected with the first clamping frame 1802 or the second clamping frame 1804, and the clamping driving member 1806 drives the first clamping frame 1802 or the second clamping frame 1804 to move up and down. In this embodiment, the clamping driving member 1806 drives the second clamping frame 1804 to move up and down, so that the space formed by the two endless belts for accommodating the heat exchange tube 22 is changed, thereby clamping and releasing the heat exchange tube 22.

The first clamping roller 1801 and the second clamping roller 1803 are both provided as a plurality of rollers. The clamping driving member 1806 includes, but is not limited to, an air cylinder, and the air cylinder drives the first clamping frame 1802 or the second clamping frame 1804 to drive the first clamping roller 1801 or the second clamping roller 1803 to move up and down to clamp the endless belt.

The clamping mechanism further comprises a clamping and righting rod 1807, the clamping and righting rod 1807 is connected with the first clamping frame 1802 or the second clamping frame 1804, and the clamping driving piece 1806 drives the first clamping frame 1802 or the second clamping frame 1804 to move up and down along the clamping and righting rod 1807. In this embodiment, the clamping and centralizing rod 207 is fixed on the lower belt body 1702 and connected with the second clamping frame 1804, so as to ensure that the second clamping frame 1804 does not have deviation in the operation process.

The driving mechanism is installed on the conveying mechanism 17 and used for driving the conveying mechanism 17 to rotate, the driving mechanism comprises a first belt roller 1901, a second belt roller 1902, a transmission piece 1903 and a driving piece 1904, the first belt roller 1901 is installed on one side of a first annular belt 1703, the second belt roller 1902 is installed on the same side of a second annular belt 1704, the transmission piece 1903 is installed between the first belt roller 1901 and the second belt roller 1902, the driving piece 1904 drives the first belt roller 1901 or the second belt roller 1902 to drive the second belt roller 1902 or the first belt roller 1901 to rotate through the transmission piece 1903, and therefore the two annular belts are enabled to achieve reverse synchronous motion. In this embodiment, the first belt roller 1901 is further coaxially provided with a belt driving wheel 1905, the driving member 1904 is connected with the belt driving wheel 1905 through a belt to drive the first belt roller 1901 to rotate, and the driving member 1904 drives the first belt roller 1901 to drive the second belt roller 1902 to rotate through the transmission member 1903, so as to realize the reverse synchronous motion of the two endless belts.

The transmission member 1903 is configured as two transmission wheels engaged with each other, the two transmission wheels are respectively coaxially disposed with the first belt roller 1901 and the second belt roller 1902, and the corresponding transmission wheels rotate synchronously with the belt pulley. In this embodiment, the drive 1904 includes, but is not limited to, an electric motor.

The belt conveyor further comprises two tensioning mechanisms 21, wherein the tensioning mechanisms 21 are respectively positioned at the opposite sides of the two annular belts where the driving mechanisms are installed and used for tensioning the corresponding annular belts.

The tensioning mechanism 21 comprises a tensioning roller 2101, a tensioning sprocket 2102 is coaxially arranged on the tensioning roller 2101, the tensioning sprocket 2102 is connected with a tensioning screw 2103, and the tensioning screw 2103 rotates to tension the endless belt through the tensioning sprocket 2102. The tensioning roller 2101 follows the pulley rotation.

In some embodiments, the rear end of the transport mechanism 17 is mounted with a first bundle guiding structure 30, which includes:

a guide structure shell: may be fixedly mounted to the rear end of the transport mechanism 17; the guide structure housing 1601 comprises a first side wall 1602 and a second side wall 1603 which are arranged oppositely, a first shaft mounting structure 1604 and a second shaft mounting structure 1605 are arranged on the first side wall 1602 at intervals along the height direction of the first side wall 1602 (taking the direction of the tube bundle guide structure after installation as a reference), and a third shaft mounting structure 1606 and a fourth shaft mounting structure 1607 are arranged on the second side wall 1603 at intervals correspondingly; the shaft mounting structure can be a slotted hole or a shaft groove; as shown in fig. 3, in the present embodiment, a shaft groove is adopted, and in order to match with the fixation of the shaft, a fixing member 1610 is arranged at the shaft groove to close the opening of the shaft groove and prevent the shaft from falling off;

the roller mechanism: includes a first roller assembly 1608 and a second roller assembly 1609, which includes an axle and a roller disposed on the axle. Each roller includes a plurality of grooves along the side circumference thereof. The first roller assembly 1608 and the second roller assembly 1609 have the same structure, two ends of the axle of the first roller assembly 1608 are correspondingly mounted between the first axle mounting structure 1604 and the third axle mounting structure 1606, and two ends of the axle of the second roller assembly 1609 are correspondingly mounted between the second axle mounting structure 1605 and the fourth axle mounting structure. The dimensions of the two on-axle wheel rollers, the spacing of the first axle mounting structure 1604 and the second axle mounting structure 1605 are configured to: the positions of the grooves of the rollers of the first roller assembly 1608 and the second roller assembly 1609 are matched to form a groove gap, which serves as a tube holding space, the space has the same tube diameter as the tube bundle or is slightly larger than the tube diameter of the tube bundle, and the tube bundle can be allowed to pass through without excessive position deviation. The roller components can rotate along with the advancing of the heat exchange tube, so that the resistance between the roller components is reduced, and the guide effect on the heat exchange tube is realized.

Two sides of the guide structure case 1601 facing to the tube bundle transferring direction are open structures, that is, two sides of the guide structure case 1601 opposite to the tube clamping space are respectively configured with a tube inlet and a tube outlet, so that the heat exchange tube can be introduced into the gap between the roller assemblies and pass through the gap between the roller assemblies. The tube inlet and tube outlet may be constructed by machining openings in the housing sidewall or by omitting the one side housing sidewall directly.

In some embodiments, further comprising a first transition structure 32 for further assisting in pipe guiding, as shown in fig. 21, the first transition structure 32 comprises:

a base 29 attached to the housing tube inlet 2605, the base 29 having a through hole 2901 formed therein in a direction from the first end toward the second end; when the base 29 and the housing are mounted, the through hole 2901 is positioned to face the position where the wheel groove clearance fits, so that the pipe can pass between the wheel groove clearance and the through hole 2901. The through holes 2901 are sized and spaced such that when installed in cooperation with the first tube bundle guide structure 30 and the second tube bundle guide structure 31, the through holes are spaced to match the grooves in the guide structures to ensure smooth passage of the heat exchange tubes.

In some embodiments, the first transition structure 32 may also be mounted at the end of the tube outlet 2606.

Through set up first tube bank guide structure 30 at conveying mechanism 17's rear end, the heat exchange tube of supplementary poling leads, and supplementary heat exchange tube gets into conveying mechanism 17 to the slot that corresponds in getting into conveying mechanism 17 is convenient for aim at, prevents the condition of heat exchange tube off tracking.

In order to improve the guiding effect, a second tube bundle guiding structure 31 is additionally arranged, the specific structure of the second tube bundle guiding structure 31 is the same as that of the first tube bundle guiding structure 30, and the second tube bundle guiding structure 31 is positioned at the front end of the first tube bundle guiding structure 30 along the transfer direction of the heat exchange tubes. The positions and the gaps of the wheel rollers in the two groups of tube bundle guiding structures are correspondingly matched, and the shells of the two groups of tube bundle guiding structures are interconnected.

In some of these embodiments, as shown in fig. 22 and 23, the first tube bundle guiding structure 30 and the second tube bundle guiding structure 31 may be directly connected via a transition structure. For example, a first tube bundle guiding structure 30 is located near one end of the conveying structure, the tube entrance 2605 of the first tube bundle guiding structure is terminated by a first transition structure 32, the first transition structure 32 is further connected to the shell (tube exit 2606 end) of a second tube bundle guiding structure 31, and a second transition structure 33 can be further disposed at the entrance end of the second tube bundle guiding structure 31.

Furthermore, in order to improve the guiding effect, a second transition structure 33 is further installed at the front end of the second tube bundle guiding structure 31, the second transition structure 33 is fixedly installed at the front end of the shell of the second tube bundle guiding structure 31, and the through hole of the second transition structure is matched with or slightly larger than the wheel-roller gap of the second tube bundle guiding structure 31.

Above structure has increased the stroke of direction, can solve the heat exchange tube and get into the direction problem of transport structure end.

Furthermore, in order to complete the integral pipe penetrating action of the heat exchange pipe, a pipe pushing mechanism is arranged at the discharge end of the conveying structure.

As shown in fig. 24 and 25, the main body implementation structure of the tube pushing mechanism is the same as the tube bundle guiding structure, and comprises:

push away a tub mechanism casing: may be fixedly mounted to the rear end of the transport mechanism 17; the tube pushing mechanism casing 1601 comprises a first side wall 1602 and a second side wall 1603 which are oppositely arranged, a first shaft mounting structure 1604 and a second shaft mounting structure 1605 are arranged on the first side wall 1602 at intervals along the height direction of the first side wall 1602 (taking the direction of the tube bundle guiding structure after installation as a reference), and a third shaft mounting structure 1606 and a fourth shaft mounting structure 1607 are arranged on the second side wall 1603 at intervals correspondingly; the shaft mounting structure can be a slotted hole or a shaft groove; as shown in fig. 24 and 25, in the present embodiment, a shaft groove is adopted, and in order to match with the fixation of the shaft, a fixing member 1610 is arranged at the shaft groove to close the opening of the shaft groove and prevent the shaft from falling off;

the roller mechanism: includes a first roller assembly 1608 and a second roller assembly 1609, which includes an axle and a roller disposed on the axle. Each roller comprises a plurality of wheel grooves arranged along the side circumferential surface of the roller. The first 1608 and second 1609 roller assemblies have the same structure, the two ends of the axle of the first 1608 roller assembly are correspondingly mounted between the first 1604 and third 1606 axle mounting structures, and the two ends of the axle of the second 1609 roller assembly are correspondingly mounted between the second 1605 and fourth axle mounting structures. The dimensions of the two on-axle wheel rollers, the spacing of the first axle mounting structure 1604 and the second axle mounting structure 1605 are configured to: the positions of the grooves of the rollers of the first roller assembly 1608 and the second roller assembly 1609 are matched to form a groove gap, which serves as a tube holding space, the space has the same tube diameter as the tube bundle or is slightly larger than the tube diameter of the tube bundle, and the tube bundle can be allowed to pass through without excessive position deviation.

Two sides of the tube pushing mechanism housing 1601 facing the heat exchange tube transfer direction are open structures, that is, two sides of the tube pushing mechanism housing opposite to the tube clamping space are respectively configured with a tube inlet 2605 and a tube outlet 2606, so that the heat exchange tube can be introduced into the gap between the roller assemblies and pass through the gap between the roller assemblies. The tube inlet 2605 and tube outlet 2606 can be constructed by machining openings in the housing sidewall or by omitting the one side housing sidewall directly.

The difference with the tube bundle guiding structure is that: the pushing plate 34 is arranged in the direction in which the heat exchange tube penetrates out of the tube pushing mechanism, the pushing plate 34 is connected with the tube pushing mechanism shell 1601 in a shaft mode and located above the roller assemblies, and the size and the installation position of the pushing plate are configured to cover the tube outlet 2606 of the roller assemblies after the pushing plate is turned down relative to the shell. When the heat exchange tube penetrates from the feeding end to the discharging end, the plate is turned over and opened along with the advancing of the heat exchange tube and turned over and closed along with the separation of the heat exchange tube from the tube pushing mechanism. The pipe pushing mechanism ensures the alignment effect of the heat exchange pipe and the aperture of the baffle plate and also ensures the integrity of the pipe penetrating action.

In a preferred embodiment, the first tube bundle guiding structure, the second tube bundle guiding structure, the third tube bundle guiding structure and the fourth tube bundle guiding structure and the tube pushing mechanism are all metal rollers, so as to ensure better constraint performance on the heat exchange tube.

In some embodiments of the present invention, in order to solve the problem of misalignment of tube penetration caused by the head lowering of the heat exchange tubes 22 during the tube penetration process, the automatic tube penetrating machine for the heat exchanger tube bundle further comprises a guide cone 35 used in cooperation.

As shown in fig. 20, the guide cone 35 has a structure including: conical head 3501 reaches and bores pole 3502 integrative with the conical head, and the top of conical head 3501 sets up to sharp form, is convenient for insert the diaphragm orifice, and the afterbody of conical rod 3502 sets up to the cylinder, and its size cooperatees with the internal diameter of heat exchange tube 22.

In order to ensure the matching between the guide cone 35 and the heat exchange tube 22, a rubber ring 3503 is sleeved on the outer ring of the tail part of the cone rod 3502, the rubber ring 3503 is in interference fit with the heat exchange tube 22 in the tube penetrating process to ensure the clamping relationship, the heat exchange tube 22 is inserted and fixed in an auxiliary manner, a hole 3504 is formed in the cone structure, and after the tube penetrating action of the heat exchange tube 22 is completed, the guide cone 35 can be drawn out of the heat exchange tube 22 through a hook or a hook piece penetrating into the hole.

The inner diameter of the heat exchange tube 22 is matched, the cylindrical outer ring is sleeved with a rubber ring 3503, and the guide cone 35 is arranged, so that on one hand, the heat exchange tube 22 can conveniently enter the conveying mechanism through a tube bundle guide structure at the rear end of the conveying mechanism; on the other hand, when the heat exchange tube 22 is in the process of sagging due to gravity at the front part of the heat exchange tube 22, the pointed part of the conical structure of the guide cone 35 can still be in the aperture range of the baffle plate, so that the heat exchange tube 22 can continuously and accurately penetrate the baffle plate which is penetrated in the rear part, the continuity and the sustainability of pipe penetration are ensured to a certain extent, the waste of manual adjustment in the process is avoided, the loss of labor cost is reduced to a certain extent, and the economic benefit is improved.

In some embodiments of the invention, in order to better solve the problem of conveying the heat exchange tube, a roller type conveying mechanism and an active clamping tube conveying mechanism are further arranged at the front end of the conveying mechanism. The roller type conveying mechanism serves as the foremost end structure of the whole heat exchange tube heat exchanger tube bundle automatic tube penetrating mechanism and is used for initial conveying of heat exchange tubes, the active clamping tube conveying mechanism is matched with the roller type conveying mechanism and arranged at the front end of the conveying mechanism and used for conveying the heat exchange tubes from a stock to the tube penetrating conveying mechanism. In some embodiments, the active clamping tube can be omitted, and the roller conveyor mechanism can be directly opposite the transport structure.

The specific implementation structure is as follows:

the structure of the roller type conveying mechanism A refers to fig. 12, and the roller type conveying mechanism A comprises a base 1, a support structure, a roller frame 2 and a roller 3.

And the base 1 is used as a supporting base of the whole mechanism.

The support structure is as follows: is arranged on the base 1 and is used as a support of the roller frame 2.

And (3) carrying roller frame 2: at least two groups of sliding fit structures are arranged between the carrier roller frame 2 and the support structure along the length direction of the carrier roller frame 2, and the carrier roller frame 2 can move relative to the support structure along the sliding fit structures; the supporting structure is used as a supporting base of the roller frame 2, a structure capable of moving relatively is arranged between the supporting structure and the roller frame, and further, the two groups of sliding structures can guarantee a more stable movement matching structure between the supporting structure and the roller frame.

Carrying roller 3: the number of the supporting roller frames is a plurality, and the supporting roller frames are arranged on the supporting roller frames 2 at intervals in parallel along the length direction of the supporting roller frames 2; the carrier roller 3 is used as a supporting foundation of the heat exchange tube to be conveyed; specifically, the length direction of the root-free carrier roller 3 is arranged along the width direction of the base 1, and a plurality of carrier rollers 3 are arranged on the base in parallel along the length direction of the base 1, so that the heat exchange tubes to be conveyed can be arranged on the continuously arranged root-free carrier rollers 3. When the idler frame 2 moves along the frame structure, the idler 3 moves therewith. The selection of the number of the carrier rollers 3 refers to the length of the heat exchange tube to be conveyed so as to ensure that the heat exchange tube to be conveyed can be stably supported. The selection of the width of the carrier roller 3 refers to the number of heat exchange tubes conveyed at a time, and as the heat exchange tubes to be conveyed are arranged on the carrier roller 3 side by side, the wider the carrier roller 3 is, the more the number of heat exchange tubes conveyed at a time is.

In order to solve the problem of the installation of the carrier roller 3, a plurality of groups of carrier roller supports 4 are arranged on the carrier roller frame 2 at intervals, and each carrier roller 3 corresponds to one group of carrier roller supports and is rotationally connected with the carrier roller supports 4. Specifically, a set of bearing roller support 4 sets up two sub-supports including the symmetry, and sub-support port is provided with the notch, and the both ends axial region of every bearing roller 3 is located the notch to seal the notch through fixed part, it is fixed. The structure can ensure the rotating performance of each carrier roller 3 and is convenient to maintain.

A motion driving mechanism: is connected with the roller frame 2 and can drive the roller frame 2 to move along the bracket structure as a power mechanism. In this embodiment, the motion driving mechanism includes a motor 5, a lead screw 6 connected to the motor 5, and a slider 7 disposed on the lead screw 6; the slide block 7 is connected with the roller frame 2. Alternatively to this, a cylinder or the like may be selected as the drive mechanism. In order to realize a more stable and symmetrical driving effect and avoid uneven movement of the roller frame 2, the driving mechanism is arranged at the symmetrical center of the roller frame 2 in the length direction.

In some embodiments of the invention, in order to adapt to different conveying height requirements, the bottom of the base 1 can be provided with the scissors lifting mechanism 36, and the scissors lifting mechanism 36 can lift to drive the base 1 to lift integrally, so as to drive the support structure, the roller frame 2 and the carrier roller 3 to lift. Referring to fig. 26 and 27, a base structure diagram of the scissor lift mechanism 36 is shown, in which the structure of the idler 3 and the like mounted on the upper portion of the base 1 is omitted.

The roller type conveying mechanism a can be used in combination with other power type conveying structures, and in some embodiments, one or more rollers can be set as a driving roller, and a driving motor is configured for the driving roller. In this embodiment, the carrier roller 3 at the forefront in the conveying direction is selected to be set as a drive roller, which is driven to: rotating forward relative to the conveying direction. When the conveying work is executed, the heat exchange tubes to be conveyed are arranged on the carrier roller 3 in parallel, and the heat exchange tubes are conveyed forwards by matching of a driving roller or other power type conveying mechanisms.

In some embodiments of the invention, the fit between the bracket structure and the roller housing 2 is solved by the following trial construction. Referring to fig. 13, the idler cradle includes:

first bracket 801: the end part of one side of the roller frame, which faces the roller frame, is provided with a first I-shaped beam 803;

second bracket 802: the first bracket 801 is arranged in parallel at intervals, and the end part of the first bracket facing one side of the roller frame 2 is provided with a second I-shaped beam;

a first sliding block 201 and a second sliding block are arranged at intervals along the bottom of the carrier roller frame, the first sliding block 201 is arranged in a first I-shaped beam groove, and the second sliding block is positioned in a second I-shaped beam groove;

the first slider 201 and the first i-beam 803, and the second slider and the second i-beam are configured to match with each other in the two sets of sliding fit structures described above, and the sliders can move along the i-beam grooves.

In order to achieve a more stable support structure, in some embodiments of the invention, the first bracket 801 and the second bracket 802 are arranged at two ends of the idler 2 which are symmetrical with respect to the centre of axial symmetry of the idler 2 in the length direction.

Furthermore, more sets of brackets can be arranged on the base, each set of bracket has the same structure as the first bracket 801 and the second bracket 802, and correspondingly, more sliding blocks are arranged at the bottom of the roller frame and are matched with the corresponding brackets. This can solve the stability problem with the increase in the length of the carrier roller housing 2.

The support structure, the matching structure of the roller frame 3, is a suspension structure relative to the base 1, and in order to solve the problem of component protection, in some embodiments of the present invention, a guard plate structure is further designed, and with reference to fig. 14, the guard plate structure includes:

a guard plate support: is fixedly arranged on the base 1;

guard plate 902: the number of the support rollers is a plurality of blocks, the support rollers are arranged on the guard plate support and are positioned between any two adjacent support rollers;

the carrier roller 3 is located at a longitudinal height above the end face of the guard plate 902. The dimensions of the bezel 902 are configured to: along base 1 width direction, it can cover base 1 width direction, along base 1 length direction, and every backplate 902 can cover the clearance between two arbitrary bearing rollers 3, can not interfere the motion of bearing roller 3 again.

Base 1, supporting structure, bearing roller frame 2, actuating mechanism all are located under backplate 902, form a relative confined structure, on the one hand, can play the guard action to base 1, supporting structure, bearing roller frame 2, actuating mechanism, and on the other hand can support the heat exchange tube when leading to treating to carry the heat exchange tube to follow bearing roller 3 landing because of abnormal conditions, avoids the heat exchange tube damage.

In some embodiments of the invention, the fender bracket comprises:

support legs 9011: the number of the supporting legs is several, the supporting legs are fixedly arranged on the bottom plate 901 and symmetrically arranged on two sides of the roller frame 3 in the length direction to form a supporting leg array;

longitudinal beam 9012: a support leg 9011 at one side is connected; the guard plate 902 is arranged between the longitudinal beams 9012 on the two sides in an overlapping mode;

the longitudinal height of the longitudinal beam 9012 is located above the carrier roller frame 2 and below the carrier roller support 4. This arrangement ensures protection of the guard plate holder 902 and avoids interference with the movement of the idler 3.

In order to conveniently receive the heat exchange tube or adjust the transferring position of the heat exchange tube, the roller type conveying mechanism A can adjust the position of the roller frame 2 through the driving mechanism.

Furthermore, the automatic tube threading machine C for the heat exchanger tube bundle is provided with a driving mechanism, and the position of the driving mechanism can be adjusted on multiple degrees of freedom to adapt to different rows and columns of heat exchange holes on the baffle plate 25. After the position of the automatic tube penetrating machine C of the heat exchanger tube bundle is adjusted, the position needs to be adjusted in a matching way by the roller type conveying mechanism.

For height position adjustment: the automatic heat exchanger tube bundle threading machine C is provided with a laser sensing device 37, and the light emitting direction of the laser sensing device 37 faces the side end face of the base 1 and faces one side of the automatic heat exchanger tube bundle threading machine C. Referring to fig. 28, when the light emitted from the laser sensor 37 can be irradiated to the side end face, it can detect the return light, indicating that the roller conveyor a and the automatic tube inserting machine C for heat exchanger tube bundle are located in the same conveying height conveying range. Referring to fig. 29, when the emitted light of the laser sensing device 37 cannot irradiate the side end face, which indicates that the roller type conveying mechanism a and the heat exchanger tube bundle automatic tube threading machine C are not at the same conveying height, the height of the base 1 is adjusted by adjusting the position of the scissor lift mechanism 36 until the laser sensing device 37 can detect the folded light.

Further, in some embodiments of the present invention, two laser sensing devices 37 may be provided, and when the roller conveyor a and the heat exchanger tube bundle automatic tube threading machine C are aligned, the emitted light of the two laser sensing devices 37 is respectively located at the upper edge and the lower edge of the side end surface. The emitted light of the two laser sensing devices 37 can be combined to more accurately achieve the height position alignment.

For the horizontal position adjustment: the automatic tube penetrating machine C of the heat exchanger tube bundle and the roller type conveying mechanism A are synchronously driven and adjusted so as to keep the same horizontal position.

The roller type conveying mechanism can be used in cooperation with the active clamping pipe conveying mechanism and is used as a front end mechanism and arranged at the front end of the active clamping pipe conveying mechanism.

Fig. 1 is a schematic structural diagram of an active clamping pipe conveying mechanism, the active clamping pipe conveying mechanism and the conveying mechanism are located on the same moving platform, after the two are located at initial positions, synchronous motion is always kept in the pipe penetrating process, and smooth conveying of a heat exchange pipe between the two is guaranteed.

The structure of the active clamping pipe conveying mechanism is shown in fig. 1, and includes a frame 10, a beam 11, a pipe conveying mechanism 12, a pipe conveying driving mechanism 13, an auxiliary pipe conveying mechanism 1412, at least one set of rollers and a roller driving member 1502, wherein an accommodating space is arranged on the frame 10; the beam 11 is arranged on the top of the frame 10; the pipe pressing mechanism 12 is arranged in the accommodating space; one end of a pressure pipe driving mechanism 13 is connected with the cross beam 11, the other end of the pressure pipe driving mechanism 13 is fixedly connected with the pressure pipe mechanism 12, and the pressure pipe driving mechanism 13 drives the pressure pipe mechanism 12 to move along the frame 10 relative to the cross beam 11; the auxiliary pipe pressing mechanism 1412 is fixedly arranged below the frame 10 relative to the pipe pressing mechanism 12; each group of rollers comprises an auxiliary roller arranged on the auxiliary pressure pipe mechanism 1412 and a driving roller arranged on the pressure pipe mechanism, and a pressure pipe adjustable space is formed between the auxiliary roller and the driving roller; the roller driving member 1502 is connected to the driving roller, and the roller driving member 1502 drives the driving roller to rotate.

In order to better meet the space position and installation requirements of the whole pipe penetrating production line, the frame 10 is provided with a frame base and two door-shaped frames which are arranged on one side of the frame base side by side, and a distance which is not provided with parts is reserved on the frame base and is used for matching with the front and back movement of the pipe penetrating machine at the back end.

For better realization direction effect, still be provided with tube bank guide structure, tube bank guide structure includes third tube bank guide structure, sets up the front end at frame 10 along tube bank direction of delivery, and its structure is the same with first tube bank guide structure's foundation structure, specifically includes:

a guide structure shell: may be fixedly mounted to the front end of the frame 10; the guide structure housing 1601 comprises a first side wall 1602 and a second side wall 1603 which are arranged oppositely, a first shaft mounting structure 1604 and a second shaft mounting structure 1605 are arranged on the first side wall 1602 at intervals along the height direction of the first side wall 1602 (taking the direction of the tube bundle guide structure after installation as a reference), and a third shaft mounting structure 1606 and a fourth shaft mounting structure 1607 are arranged on the second side wall 1603 at intervals correspondingly; the shaft mounting structure can be a slotted hole or a shaft groove; as shown in fig. 3, in the present embodiment, a shaft groove is adopted, and in order to match with the fixation of the shaft, a fixing member 1610 is arranged at the shaft groove to close the opening of the shaft groove and prevent the shaft from falling off;

the roller mechanism: includes a first roller assembly 1608 and a second roller assembly 1609, which includes an axle and a roller disposed on the axle. Each roller includes a plurality of grooves along the side circumference thereof. The first roller assembly 1608 and the second roller assembly 1609 have the same structure, two ends of the axle of the first roller assembly 1608 are correspondingly mounted between the first axle mounting structure 1604 and the third axle mounting structure 1606, and two ends of the axle of the second roller assembly 1609 are correspondingly mounted between the second axle mounting structure 1605 and the fourth axle mounting structure. The dimensions of the two on-axle wheel rollers, the spacing of the first axle mounting structure 1604 and the second axle mounting structure 1605 are configured to: the positions of the grooves of the rollers of the first roller assembly 1608 and the second roller assembly 1609 match to form a groove gap that serves as a tube gripping space that is the same or slightly larger than the tube diameter of the tube bundle and allows the tube bundle to pass through without excessive positional shifting. The roller components can rotate along with the advancing of the heat exchange tube, so that the resistance between the roller components is reduced, and the guide effect on the heat exchange tube is realized.

Two sides of the guide structure housing 1601 facing the tube bundle transfer direction are open structures, that is, two sides of the guide structure housing opposite to the tube clamping space are respectively configured with a tube inlet and a tube outlet, so that the heat exchange tube can be introduced into the gap between the roller assemblies and pass through the gap between the roller assemblies. The tube inlet and tube outlet may be configured by machining openings in the guide structure housing side walls, or by omitting the one-sided guide structure housing side walls directly.

In some embodiments of the present invention, in order to improve the guiding effect, a fourth tube bundle guiding structure may be further provided. The concrete structure of the fourth tube bundle guiding structure is the same as that of the third tube bundle guiding structure, and the fourth tube bundle guiding structure is located at the rear end of the frame 10 along the tube bundle transfer direction.

The first roller assembly 1608 and the second roller assembly 1609 of the tube bundle guiding structure form an inner tube bundle passing space, and for better guiding, the driving roller assembly is arranged above to provide rotating power, the driven auxiliary roller assembly is arranged below to replace the prior art that the driving roller assembly is arranged at the lower part, and the auxiliary roller assembly is aligned with the tube bundle guiding structure, and the lower surfaces of the tube bundle passing spaces at two sides are flush with the upper surfaces of the auxiliary roller assemblies to form a plane, so that the tube bundle is ensured not to have deviation in the moving process.

In some embodiments of the present invention, in order to achieve a higher compression effect, fig. 4 and 5 are a first and a second schematic structural diagrams of the pipe pressing mechanism 12, as shown in fig. 4 to 5, the pipe pressing mechanism 12 is configured to include a connecting plate 1201 fixedly connected to the pipe pressing driving mechanism 13, a mounting plate 1202 for mounting a roller driving member 1502 and a driving roller, an adjusting member 1204 is disposed between the mounting plate 1202 and the connecting plate 1201, and a distance between the connecting plate 1201 and the mounting plate 1202 is changed by the adjusting member 1204.

In some embodiments of the present invention, the adjusting component 1204 is further configured to be provided with a column-shaped structure 12041 and a column 12042 from top to bottom, the upper end of the column-shaped structure 12041 is fixedly connected to the connecting plate 1201, the lower end of the column-shaped structure 12041 is movably inserted into the column 12042, the lower end of the column 12042 is connected to the mounting plate 1202, the column-shaped structure 12041 is sleeved with a spring 12043, one end of the spring 12043 is connected to the connecting plate 1201, the other end of the spring 12043 is connected to the column 12042, the lower end of the column-shaped structure 12041 is further provided with a pin through hole 12044, a column through hole 12045 larger than the pin through hole 12044 is formed at a corresponding position of the column 12042, and a pin penetrates through hole 12045 and the pin through hole 12044.

It should be noted that four adjusting members 1204 are provided and are respectively disposed around the mounting plate 1202 and the connecting plate 1201, and in order to improve the structural stability, two adjusting mechanisms perpendicular to the movement direction of the tube bundle may be connected by the rectangular connecting plate 1201.

In some embodiments of the present invention, to facilitate stable, non-biased movement of platen mechanism 12 along frame 10, concave sliders are mounted on the sidewalls of columns 12042, and a track is provided on the gantry of frame 10, via which adjusting member 1204 moves up and down along the track of frame 10.

It should be noted that fig. 6 is a cross-sectional view of the adjusting component 1204, as shown in fig. 6, the upright 12042 is configured as a hollow column, and the column is provided with two upright through holes 12045, as shown in fig. 9, a pin through hole 12044 is opened at a position corresponding to the upper end of the upright through hole 12045 of the column 12041, during the assembling process, after the spring 12043 is sleeved on the column 12041, the upper end of the column 12041 is connected with the connecting plate 1201 through a bolt, then the lower end of the column 12041 is installed in the hollow structure of the upright 12042, and a pin is inserted into the upright through hole 12045 and the pin through hole 12044, so as to increase the pressing force by the spring 12043, and on the other hand, the pin, the upright through hole 12045 and the pin through hole 12044 are provided to perform the limiting function.

In some embodiments of the present invention, in order to improve the structural stability of the pressing driving mechanism, fig. 7 and 8 are schematic structural diagrams a first and a second of a connecting plate 1201, as shown in fig. 7 and 8, a concave structure 12011 is disposed on the connecting plate 1201, and the concave structure 12011 and the pressure pipe driving mechanism 13 are fixedly mounted.

Four through holes are formed in the concave structure 12011 and are used for being connected with the pressing driving mechanism, so that the pressing pipe mechanism 12 and the driving roller wheel can be driven to move up and down conveniently.

In some embodiments of the present invention, fig. 10 is a schematic structural diagram of the pressing driving mechanism, as shown in fig. 10, the pressing driving mechanism may be an air cylinder or an oil cylinder, taking the oil cylinder as an example, a telescopic end of the oil cylinder is fixedly mounted on the cross beam 11, a fixed end of the oil cylinder is mounted on the recessed structure 12011, the oil cylinder drives the connecting plate 1201 and the connecting mechanism thereof to move up and down along the frame 10, a through hole 1301 is opened at a position of the oil cylinder opposite to a through hole of the recessed structure 12011, and an oil inlet 1302 and an oil outlet 1303 are further disposed on a side wall of the oil cylinder.

The oil inlet 1302 and the oil outlet 1303 are arranged up and down and have a certain distance, and the purpose of the arrangement is to prompt that other parts are not suitable to be arranged between the oil inlet 1302 and the oil outlet 1303, so that the assembly is prevented from being influenced.

In some embodiments of the present invention, at least one mounting structure is correspondingly disposed on the third sidewall and the fourth sidewall of the auxiliary pressure pipe mechanism 1412, and the auxiliary roller is mounted on the mounting structure.

The auxiliary pressure pipe mechanism 1412 is fixedly installed on the door-shaped frame of the frame 10, the auxiliary pressure pipe mechanism 1412 can be integrally set to be a concave structure, two installation structures are arranged on the third side wall and the fourth side wall of the auxiliary pressure pipe mechanism 1412, which are opposite to each other and have the same running direction with the tube bundle, the front and the back of the third side wall and the front and the back of the fourth side wall are provided with the installation structures, the installation structures can be set to be slotted holes or shaft slots, and two ends of the auxiliary roller are installed in the installation structures. The position of the mounting structure corresponds to the position of the driving roller wheel, and the distance between the driving roller wheel and the auxiliary roller wheel is equal to the diameter of the tube bundle or slightly larger than the diameter of the tube bundle, so that the tube bundle is allowed to pass through, and excessive position deviation can not be generated.

In some embodiments of the present invention, two sets of rollers are provided, a driving gear 1503 is connected to the roller driving member 1502, the driving gear 1503 is connected to two driven gears 1504 in a meshing manner, the two driven gears 1504 are respectively connected to the two driving rollers, and the roller driving member 1502 drives the driving rollers to rotate via the driving gear 1503 and the driven gears 1504.

It should be noted that the number of rollers can be adjusted according to actual application scenarios and requirements, and is not limited.

A roller driving piece 1502 is installed on the upper portion of the connecting plate 1201, a mounting seat is installed on the lower portion of the connecting plate 1201, a shaft connecting structure is arranged on the mounting seat, a driving roller is installed on the shaft connecting structure, a driving gear 1503 is connected with the driving end of the roller driving piece 1502, driven gears 1504 are respectively meshed and connected with the two sides of the driving gear 1503, the driven gears 1504 are sleeved on the driving roller, and the roller driving piece 1502 drives the two driving rollers to rotate towards one direction through the driving gear 1503 and the two driven gears 1504.

In the working process of the active clamping pipe conveying mechanism, the driving roller is always in a rotating state, and the pipe pressing mechanism 12 is driven by the pipe pressing driving mechanism 13 to move downwards so as to realize the pressing of the pipe bundle; in this process, when the stroke of the cylinder is greater than the maximum stroke acceptable for the bundle, the cylinder continues to extend, the tube pressing mechanism 12 is forced upward, the post openings 12045 move upward relative to the pin openings 12044, the mounting plate 1202 and the posts 12042 move upward, compressing the springs 12043 on the columns 12041, and the springs 12043 applying a reaction force to the drive roller to achieve better compression of the bundle.

In order to solve the problem that the conveying synchronism of the heat exchange tubes is not easy to control, in some embodiments of the invention, the tube penetrating machine further comprises a synchronous conveying detection control mechanism. Refer to fig. 30 to 37.

Synchronous conveying detection control mechanism sets up at conveying mechanism's exit end, includes:

shaft 38: the heat exchange pipe is arranged on the conveying mechanism, for example, the heat exchange pipe can be selectively arranged on a proper position of the frame, and the heat exchange pipe provided with the guide mechanism can also be selectively arranged on the guide mechanism;

the guide plate 39: the number of the heat exchange pipes is a plurality of heat exchange pipes, the number of the heat exchange pipes is matched with the number of the heat exchange pipes which can be simultaneously conveyed, and the heat exchange pipes are rotationally connected with the shaft 38; taking the example that the conveying mechanism can convey 5 heat exchange tubes 22 at the same time, 5 guide plates 39 need to be configured;

the detection wheel 40: each detection wheel 6 can be contacted with the top of each heat exchange tube of the conveying mechanism; taking the example of simultaneously conveying 5 heat exchange tubes, the device comprises 5 detection wheels 40, each detection wheel is matched with one heat exchange tube 22, and the detection wheels 40 are driven to rotate in the process of conveying the heat exchange tubes 22 forwards;

the encoder sensor 41: a radial extension end mounted on each guide plate 39 and located on the circumferential surface of each detection wheel 40, for detecting the rotation data of the circumferential surface of the detection wheel 40; the encoder sensor 41 is disposed at a position where it can sense the rotation of the detection wheel 40;

the control system is connected to each encoder sensor 41 and acquires rotational data for each detection wheel 40.

If the transmission of each heat exchange tube 22 is synchronous, the rotation of each detection wheel 40 is synchronous, the number of revolutions of each detection wheel 40 detected by the code sensor 41 is the same, in this case, the controller judges that the heat exchange tube 22 is normally conveyed, and normally controls the conveying mechanism to work; when the transmission of the heat exchange tube 22 is asynchronous, the rotation data of the detection wheel 40 corresponding to the heat exchange tube 22 with delayed conveying will lag behind other detection wheels, and at this time, the controller judges that the conveying has a fault and controls the conveying mechanism to stop for adjustment.

In some embodiments of the present invention, the structure of the detection wheel 40 includes:

first wheel 4001: is a gear;

second wheel 4002: the roller is a normal roller with smooth circumferential surface, and is coaxially connected with the first roller body 4001, the first roller body 4001 and the second roller body 4002 rotate synchronously, and the second roller body is contacted with the top of the conveying heat exchange tube of the conveying mechanism; the second wheel body 4002 is a smooth wheel body, so that the conveying heat exchange tube 22 can be driven to rotate more conveniently;

the encoder sensor 41 is located at a radially extending end of the circumferential surface of the first wheel 4001, that is, the encoder sensor 41 detects rotation data of the gear. Since the gear has teeth, the encoder sensor 41 can detect the number of teeth passing therethrough, and can convert it into rotation data of the detection wheel 40.

In some embodiments of the present invention, the first wheel body 4001 is a metal wheel, and the second wheel body 4002 is a rubber wheel. The metal wheel has better stability, and the rubber wheel is more easily driven by the heat exchange tube 22 to rotate, so that the occurrence of drive slip is avoided.

In order to solve the problem of installation of the guide plates 39, in some embodiments of the present invention, a plurality of shaft installation blocks 3801 are spaced apart from each other on the shaft 38, the number of the shaft installation blocks 3801 is the same as that of the guide plates 39, and each guide plate 39 is coupled to one shaft installation block 3801. Compared with the direct installation on the shaft 38, the shaft installation block 3801 is more convenient to maintain, is easy to replace after being damaged, and can also be convenient for adjusting the position of the shaft installation block 3801.

In some embodiments of the present invention, a tension spring 42 is further included, and one end of the tension spring 42 is connected to the shaft mounting block 3801, and the other end is connected to the guide plate 39 correspondingly disposed on the shaft mounting block. The tension spring 42 has a certain tension force, on one hand, the tension spring can generate a certain tension force on the detection wheel 40, and the detection wheel 40 can be ensured to be in contact with the heat exchange tube 22; on the other hand, when the detection wheel 40 abnormally rotates due to abnormal resistance, the tension spring 42 may pull the guide plate 39 inward to restore the position of the detection wheel 40.

In order to solve the problem of mounting the encoder sensor 41, in some embodiments of the present invention, a guide plate mounting block 3901 is provided on the guide plate 39, and the encoder sensor 41 is mounted on the guide plate mounting block 3901. As shown in FIG. 35, guide plate mounting block 3901 has a slot-in configuration in which encoder sensor 41 is inserted with its sensing end facing sensing wheel 40 and is connected to a controller via data line 43.

In some embodiments of the present invention, the conveying mechanism comprises a tube bundle guiding structure, and the synchronous conveying detection control mechanism is mounted on the tube bundle guiding structure, and the tube bundle guiding structure is as described above.

The shaft 38 is mounted on the upper end surface of the guide structure housing via a shaft mount 3802, and the detection wheel 40 is opposed to the exit direction of the wheel groove gap. This may be accomplished by adjusting the position of the shaft mounting block 3801.

In some embodiments of the present invention, the outlet end of the conveying structure is further provided with a transition guiding structure, the transition guiding structure being implemented as described above for the transition structure.

The upper end surface of the base body 29 comprises a section of vacant part 1612, as shown in fig. 30 to 32, the vacant part 1612 is rectangular, the size of the vacant part 1612 ensures that all heat exchange tubes 22 conveyed are exposed outside after the vacant part is arranged, and the detection wheel 40 is positioned in the vacant part 1612, so that the detection wheel 40 can be in contact with the heat exchange tubes 22 to be conveyed.

Referring to fig. 37, in some embodiments of the present invention, the exit end of the substrate through hole 2901 is provided with a push plate 29, the push plate 29 is coupled to the substrate 29, the coupling point is located above the through hole 2901, and the push plate 29 is configured to have the following dimensions: when rotated downward, the through hole 2901 is covered and attached to the sidewall of the substrate. The structure is suitable for the insertion operation of the auxiliary heat exchange tube 24. During the transportation of the heat exchange tube 22, the pushing plate 29 is lifted, and after the heat exchange tube 24 is completely output, the pushing plate 29 automatically falls down, and at this time, the pushing plate 29 can further push the heat exchange tube 24 by controlling the guide mechanism to move towards the insertion tube direction of the heat exchange tube 24, so as to ensure that the heat exchange tube 4 is completely inserted into the ventilation heat baffle plate 25.

Referring to fig. 11, when the carrier roller type conveying mechanism a, the active clamping pipe conveying mechanism B and the automatic pipe penetrating machine for heat exchanger tube bundle C are used in cooperation, the carrier roller type conveying mechanism a is arranged at the front end of the active clamping pipe conveying mechanism B, and the active clamping pipe conveying mechanism B is arranged at the front end of the automatic pipe penetrating machine for heat exchanger tube bundle C. The position of the carrier roller frame 32 is adjusted to align the tube gap formed by the first roller assembly 31608 and the second roller assembly 31609 when the tube is fed forward. The pipe fittings are conveyed to the direction of the heat exchange plate through the three parts in sequence.

The process of the heat exchanger assembly pipe penetrating work by adopting the pipe penetrating machine provided by the invention is as follows.

Early preparation work: two tube plates 24 and a baffle plate 25 of the heat exchanger are arranged and fixed on a heat exchanger pore plate bracket 23 according to the design requirement, the two tube plates 24 are arranged at two ends of the heat exchanger pore plate bracket 23, and the baffle plate 25 is arranged between the two tube plates 24, so that the plate holes of the tube plates 24 and the baffle plate 25 are in the same horizontal direction, and the tube penetrating action is convenient. And an automatic tube penetrating machine for the automatic heat exchanger tube bundle is well arranged outside the tube plate 24 at one side of the heat exchanger. The position of the clamping mechanism 18 is adjusted according to the pipe diameter specification of the heat exchange pipe 22, and the pipe spacing of the pipe bundle guide structures at the front end and the rear end of the automatic pipe penetrating machine of the automatic heat exchanger pipe bundle is adjusted. The tube plate penetrating device can penetrate through the pore plates at two ends of the heat exchanger at one time, the process that the tube plate at one end is firstly placed in the existing tube penetrating operation to penetrate through the tube and then the tube plate at the other end penetrates through the tube is changed, and the efficiency is improved.

S1: adjusting the position of the through pipe

The rack is controlled by a control system to drive the conveying mechanism 17 to move, so that the axial direction of the heat exchange tube 22 conveyed by the conveying mechanism 17 is consistent with the axial direction of a hole to be punched of the baffle plate 25 and is set as a coordinate origin, and meanwhile, various specification parameters of the heat exchanger are set so as to accurately position the tube punching position;

the specification parameters of the heat exchanger comprise the distance between the baffle plates 25 of the heat exchanger, the diameter of the aperture of the baffle plates 25 and the arrangement of plate holes, and the moving step length of the conveying mechanism can be adjusted according to the parameters.

In this embodiment, the control system is preferably a PLC controller or an industrial personal computer control system, and the industrial personal computer control system includes but is not limited to a single chip microcomputer.

S2: feeding into a heat exchange tube bank

The length direction of the heat exchange tube is placed on each carrier roller 3 by constructors, the heat exchange tube is driven by a driving roller to be transferred forwards and enters an active clamping tube conveying mechanism B, a tube pressing mechanism 12 is driven by the rotation of a driving roller and a tube pressing driving mechanism 13 to move up and down to compress and transfer the heat exchange tube forwards and enters a gap between two annular belts of the conveying mechanism; for the automatic tube penetrating machine for the tube bundle of the heat exchanger with the tube bundle guide structure, the heat exchange tube firstly penetrates through the first tube bundle guide structure and the second tube bundle guide structure, then penetrates into the gap between the two annular belts of the conveying mechanism and penetrates out through the tube pushing mechanism; after the heat exchange tube passes through the push tube structure, the push plate 34 is lifted;

specifically, a plurality of heat exchange tubes are arranged in a row according to the distance between the baffle plates, a special seeker is placed at the penetrating front end of each heat exchange tube, the heat exchange tubes are guided into the grooves of the conveying mechanism and the plate holes of the baffle plates by the tube bundle guide structures at the rear ends, the heat exchange tubes are clamped by the clamping mechanism through the conveying mechanism, in the process, the heat exchange tubes are clamped by the clamping mechanism 18, the driving piece 1904 drives the conveying mechanism 17 to rotate, and the heat exchange tubes 22 are driven to penetrate continuously or discontinuously.

S3: pipe threading action

S31: the heat exchange tube rows are continuously or intermittently inserted into the tube plates and the plate holes of the baffle plate by the conveying mechanism, and when the conveying mechanism 17 is conveyed to the tail parts of the heat exchange tube rows, the conveying mechanism 17 stops working;

s32: the clamping degree of the two annular belts is adjusted by loosening the clamping mechanism 18, so that the conveying mechanism 17 moves along the pipe penetrating bracket 2007 in the direction away from the heat exchanger, and the heat exchange pipe row exits from the pipe pushing mechanism; the pushing plate 34 of the tube pushing mechanism falls, the conveying mechanism moves towards the direction close to the heat exchanger along the frame, the pushing plate 34 is contacted with the tail end of the heat exchange tube, and the heat exchange tube is pushed forwards continuously until the heat exchange tube completely enters the baffle plate;

s4: driving the conveying mechanism 17 to move to a certain position according to the interval of the baffle plates 25 of the heat exchanger set in the step S1, and repeating the steps S2-S3 to complete the tube penetrating action of the second row of heat exchange tubes 22;

specifically, the synchronous adjustment of the carrier roller type conveying mechanism A and the automatic tube penetrating machine C of the heat exchanger tube bundle is completed in the following manner.

The automatic tube penetrating machine C for the heat exchanger tube bundle is arranged at the front end of the roller type conveying mechanism A in the conveying direction and used for conveying and inserting the heat exchange tube to the heat exchanger baffle plate 25.

The automatic tube penetrating machine C of the heat exchanger tube bundle is provided with a driving mechanism, and the position of the driving mechanism can be adjusted on multiple degrees of freedom so as to be matched with heat exchange holes in different rows and lines on the baffle plate 25. After the position of the automatic tube penetrating machine C of the heat exchanger tube bundle is adjusted, the position needs to be adjusted in a matching way by the roller type conveying mechanism.

For height position adjustment: the automatic heat exchanger tube bundle threading machine C is provided with a laser sensing device 37, and the light emitting direction of the laser sensing device 37 faces the side end face of the base 1 and faces one side of the automatic heat exchanger tube bundle threading machine C. Referring to fig. 32, when the light emitted from the laser sensor 37 can be irradiated to the side end face, it can detect the return light, indicating that the roller conveyor a and the automatic tube inserting machine C for heat exchanger tube bundle are located in the same conveying height conveying range. Referring to fig. 29, when the emitted light of the laser sensing device 37 cannot irradiate the side end face, which indicates that the roller type conveying mechanism a and the automatic tube threading machine C for heat exchanger tube bundle are not at the same conveying height, the height of the base 1 needs to be adjusted along with the emitted light until the laser sensing device 37 can detect the turn-back light.

And S5, repeating the steps and the like continuously until all the heat exchange tubes 22 are penetrated, and finishing the tube penetrating operation of the whole heat exchanger.

And after all the pipe penetrating work is finished, the automatic pipe penetrating machine of the automatic heat exchanger pipe bundle is moved to a required standby position.

According to the method in the embodiment of the application, the conveying mechanism does not need to be driven to drive the pipe pushing mechanism to move in the vertical direction, the turnover plate can be covered along with the separation of the pipe pushing mechanism of the heat exchange pipe, the conveying mechanism is driven to drive the pipe pushing mechanism to move forwards, and the whole heat exchange pipe is pushed into the baffle plate.

According to the automatic tube penetrating method for the heat exchanger tube bundle, the tube penetrating mode of a single heat exchange tube is changed into the mode that a plurality of heat exchange tubes 22 penetrate simultaneously, automatic accurate hole positioning and mechanical continuous tube penetrating operation are achieved; the pipe penetrating of a longer heat exchange pipe can be met; meanwhile, the pipe penetrating period is shortened, and the labor intensity of workers is reduced.

The method also realizes the simultaneous penetration of the tube plates at two sides of the heat exchanger at one time, changes the working procedures that the tube plate at one end is firstly placed for tube penetration and then the tube plate at the other end is placed for tube penetration in the existing tube penetration operation, and improves the efficiency.

The efficiency and cost ratio of the pipe penetrating machine provided by the invention to the existing manual pipe penetrating work is shown in table 1.

TABLE 1 table for comparing efficiency and cost

The total pipe penetration is 19 meters long and 9 meters long

Number of tubes passing through at a time

Number of workers

Unit price (yuan)

Time consuming

Cost (Yuan)

Prior art technique

2000 root/bark of Chinese angelica

1 root/time

4 persons

400

5 days

8000 yuan

The invention relates to a heat exchange tube

2000 root of Chinese angelica

5 roots/time

2 persons

300

1.5 days

1200 yuan

Example 2:

compared with the embodiment 1, the technical scheme of the embodiment is improved as follows:

the pipe pushing mechanism is not provided with a pushing plate 34, the pipe pushing mechanism is integrated with a pushing plate, and the height of the pushing plate is matched with the height of one hole position of the baffle plate;

and adjusting the tube penetrating method, in step S32, after the heat exchange tube is withdrawn from the conveying mechanism, the tube pushing mechanism 26 moves downward by a hole position, and then the pushing plate of the tube pushing mechanism 26 moves along the tube penetrating bracket 2007 in the direction away from the heat exchanger to push the rear end of the heat exchange tube row, so that the heat exchange tube row continues to penetrate into the baffle plate 25 until the distance between the heat exchange tube row and the baffle plate meets the process design requirement, thereby completing the tube penetrating task of the heat exchange tube row.

Example 3:

the tube pushing mechanism in the automatic tube penetrating machine for the heat exchanger tube bundle provided by the embodiment of the application can be provided with no reversible pushing plate 34 or one pushing plate, and the tube pushing mechanism only plays a guiding role.

The front group of heat exchange tubes and the rear group of heat exchange tubes are input to the conveying mechanism without gaps, the rear group of heat exchange tubes push the front group of heat exchange tubes to the mounting position forwards after the front group of heat exchange tubes are output by the conveying mechanism, and then the position of the conveying mechanism is adjusted to complete the insertion of the next group of heat exchange tubes; the pipe inserting method does not need to use the pushing plate 34, and can also ensure the installation effect and the working efficiency of the heat exchange pipe.

The heat exchange tube bundle that will carry out the poling simultaneously is as same a set of time, at the poling in-process, when the whole root of the heat exchange tube of current a set of time submerged conveying mechanism, conveying mechanism can be sent the heat exchange tube of back a set of time according to the tube bank guide structure that sets up on it to conveying mechanism's rear end to carry to a certain position when conveying mechanism, when conveying mechanism loses the sufficient clamping-force to the heat exchange tube of previous a set of time, can push away the heat exchange tube of previous a set of time to the baffling board completely through the poling of the heat exchange tube of back a set of time, realize the complete process of heat exchange tube poling.

It should be noted that the method in the embodiment of the present application is not limited to the structure in the embodiment of the present application, and the method can be adopted in the automatic tube threading machine structure of the heat exchanger tube bundle in other embodiments.

Example 4:

compared with the above embodiment, the technical solution of this embodiment is improved as follows:

the annular belt is replaced by a plurality of connecting plates and chains, the connecting plates are mounted on the chains and can rotate along with the chains, the connecting plates are made of rigid materials, soft base plates are vulcanized on the connecting plates, and a plurality of grooves matched with the shape of the heat exchange tube 22 are formed in the soft base plates and used for conveying the heat exchange tube 22.

The above description is for the purpose of describing particular embodiments of the present invention, and is not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and all modifications and equivalents may be included in the scope of the present invention. It is noted that in the drawings and in the description, implementations not shown or described are all in a form known to those of ordinary skill in the art and are not described in detail. Furthermore, the above definitions of the various components and processes are not intended to be limited to the specific structures, shapes, or configurations shown in the examples.

Claims

1. An automatic poling machine of heat exchanger tube bank characterized in that includes:

a frame having an open accommodating space;

the fixture includes:

the first clamping roller is arranged at one end of the conveying mechanism;

the first clamping frame is connected with the first clamping roller;

the second clamping frame is connected with the first clamping roller;

the conveying mechanism is provided with two annular belts which are arranged up and down, an adjustable space for accommodating the heat exchange tube is formed between the two annular belts, and the two annular belts are respectively connected with the first clamping roller and the second clamping roller; the annular belt is provided with a groove matched with the shape of the heat exchange tube;

still include active centre gripping pipe feeding mechanism, include:

the frame is provided with an accommodating space;

the cross beam is arranged at the top of the frame;

the pipe pressing mechanism is arranged in the accommodating space;

2. The automatic tube threading machine of a heat exchanger tube bundle according to claim 1, further comprising at least one set of tube bundle guiding structure, wherein the tube bundle guiding structure comprises:

a guide structure shell: the device comprises a first side wall and a second side wall which are oppositely arranged at intervals, wherein a first shaft mounting structure and a second shaft mounting structure are arranged on the first side wall at intervals along the height direction of the first side wall, and a third shaft mounting structure and a fourth shaft mounting structure are correspondingly arranged along the height direction of the second side wall;

3. The automatic tube threading machine of the heat exchanger tube bundle according to claim 2, characterized by comprising two groups of tube bundle guiding structures and a transition structure;

the transition structure includes:

4. The automatic tube inserting machine for the tube bundle of the heat exchanger according to claim 2 or 3, wherein a pushing plate is disposed on the side wall of the guiding structure shell at the side of the tube outlet of the tube bundle guiding structure, the pushing plate is coupled to the guiding structure shell at the tube outlet side, and the coupling position of the pushing plate and the guiding structure shell is located above the tube outlet, and the pushing plate is configured to have a size: when the guide structure rotates downwards, the guide structure can cover the outlet of the pipe fitting and is attached to the side wall of the guide structure shell; the tube bundle guiding structure provided with the pushing plate is arranged at the output end of the heat exchange tube of the conveying mechanism, and the wheel groove gap is aligned with the groove.

5. The automatic tube threading machine of a heat exchanger tube bundle according to claim 1, wherein the annular belt is provided with a plurality of grooves arranged along a width direction thereof, each groove is a groove having an arc smaller than pi, and a flat portion is provided between adjacent grooves.

6. The automatic tube penetrating machine for the tube bundle of the heat exchanger as claimed in claim 1, wherein the frame of the active tube clamping mechanism and the frame of the tube penetrating machine are mounted on the same multi-degree-of-freedom motion platform and can be driven to move synchronously.

7. The automatic tube threading machine of a heat exchanger tube bundle according to claim 1 or 6, further comprising a roller type conveying mechanism, comprising:

a base;

the support structure is as follows: is arranged on the base;

a motion driving mechanism: the supporting roller frame is connected with the supporting roller frame so as to drive the supporting roller frame to move along the support structure;

8. The automatic tube threading machine for the tube bundle of the heat exchanger according to claim 7, wherein a laser sensing device is installed on a rack of the tube threading machine, and the light emitting direction of the laser sensing device faces to a side end face of one side of the base towards the conveying mechanism; the laser sensing device can emit laser and receive side end surface refraction light;

a lifting driving mechanism is arranged below the base;

the poling machine control system receives the sensing signal of the laser sensing device and controls the lifting driving mechanism to act on the premise that the laser sensing device does not receive the refracted light signal so as to adjust the height of the base;

the laser sensing devices are arranged in two, and when the roller type conveying mechanism and the conveying mechanism are aligned, the emitted light of the two laser sensing devices is respectively positioned at the upper edge and the lower edge of the side end face.

9. The automatic tube threading machine of a heat exchanger tube bundle according to claim 2 or 3, further comprising a synchronous conveyance detection control mechanism, wherein the synchronous conveyance detection control mechanism comprises:

the coding sensor comprises: the rotating data of the peripheral surface of each detection wheel is detected at the radial extension end of the peripheral surface of each detection wheel;

10. The automatic tube threading machine for a heat exchanger tube bundle according to claim 9, wherein the detection wheel comprises:

a first wheel body: is a gear;

the code sensor is located at the radial extending end of the circumferential surface of the first wheel body.

11. The automatic tube threading machine of a tube bundle for a heat exchanger according to claim 9, wherein the output end of the conveying mechanism is provided with a tube bundle guiding mechanism, the shaft is arranged on a guiding mechanism shell, and the detection wheel is positioned at the outlet end of the tube fitting and is contacted with the heat exchange tube.

12. The automatic tube threading machine for the tube bundle of the heat exchanger as claimed in claim 11, wherein the tube outlet end of the tube bundle guiding mechanism is provided with a transition guiding structure, the upper end surface of the base body of the transition guiding mechanism is provided with a hollow part, the hollow part is communicated with the through hole and is configured in size to expose all the output heat exchange tubes, and the detection wheel is positioned at the hollow part so as to be contacted with the heat exchange tubes to be conveyed.

13. The automatic tube threading machine for a heat exchanger tube bundle according to claim 1, wherein said driving mechanism comprises:

a first belt roller installed at one side of the endless belt,

the second belt roller is arranged on the same side of the other annular belt;

a driving piece, the driving piece is connected first belt roller or second belt roller, the driving piece drive first belt roller or second belt roller drives via the driving medium second belt roller or first belt roller rotate, thereby realize two reverse synchronous motion of endless belt.

14. The automatic tube threading machine of a heat exchanger tube bundle as claimed in claim 1, wherein the clamping mechanism further comprises a clamping and centering rod, the clamping and centering rod is connected to the first clamping rack or the second clamping rack, and the clamping driving member drives the first clamping rack or the second clamping rack to move up and down along the clamping and centering rod.

15. The automatic tube threading machine for a heat exchanger tube bundle according to claim 1, wherein said frame comprises:

the main frame is provided with a main driving piece;

the Y support is provided with a Y driving piece, the Y support is installed on the main framework, and the main driving piece drives the Y support to do linear reciprocating motion along the main framework;