High-altitude positioning machine for heat exchanger

Abstract

The present invention relates to a high-altitude positioning machine for a heat exchanger. The end face of the tail end of the inlaid beam completely coincides with the end face of the front end of the main beam to ensure that the two can be butt-jointed. The main beam serves as the load-bearing body of the positioning machine, and the inlaid beam serves as an extended part of the main beam to ensure that the equipment has sufficient length to be successfully lapped on the base of the heat exchanger platform. Two sets of follower trolleys are equipped on the main beam and the inlaid beam as load carriers, and a main traveling crane is equipped as a towing vehicle. The follower trolleys and the main traveling crane move and lock on the equipment in a way of being separated and combined at will, providing control balance for the entire equipment, ensuring that the lifting center coincides with the center of gravity of the equipment, and solving the biggest difficulty in the high-altitude positioning of the equipment. The present invention can accurately master its own balance state and the balance state when loading the heat exchanger, and use the follower trolleys and the main traveling crane to move the heat exchanger out and in, completing the disassembly and assembly work of the heat exchanger, greatly reducing the lifting difficulty, reducing the labor force, and improving the work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchanger disassembly and assembly equipment, and particularly relates to an aerial positioning machine for heat exchangers. Background Art

[0002] Heat exchangers are important equipment widely used in the petrochemical field. Since heat exchangers are large in length and weight and require aerial operations during construction, and the position of the heat exchanger installation platform is limited, the disassembly and assembly operations of heat exchangers are cumbersome and difficult. Currently, the disassembly and assembly of heat exchangers are carried out by winding a chain hoist around the outer shell of the heat exchanger and using a hoisting method to tentatively translate the heat exchanger to install or separate it from the fixed base of the heat exchanger installation platform. This method is extremely difficult to balance, resulting in inability to position, extremely low disassembly and assembly efficiency, very long time consumption, and extremely high danger. Moreover, due to the limitation of the working space, the crane cannot directly participate in the hoisting work area for hoisting. Only when the heat exchanger is translated to a certain range by the chain hoist can the crane participate in the hoisting work, which greatly increases the hoisting difficulty. Therefore, there is currently no equipment that can conveniently and accurately carry out the disassembly and assembly work of heat exchangers. Summary of the Invention

[0003] In view of the above problems, the present invention provides an aerial positioning machine for heat exchangers, which can accurately control its own balance state and the balance state when loading the heat exchanger, and use the traction and bearing devices on the equipment to move the heat exchanger out and in to complete the disassembly and assembly work of the heat exchanger.

[0004] To achieve the above objectives, the following technical solutions are adopted: The aerial positioning machine for heat exchangers includes a main beam, an inlaid beam, a main traveling crane, two sets of follower trolleys, a transmission mechanism, and a power mechanism. The main beam includes a base, a main traveling crane beam, and side beams. The transmission mechanism is horizontally arranged on the main beam and is driven by the power mechanism, and the power mechanism is arranged at the tail end of the main beam;

[0005] The inlaid beam includes an inlaid traveling crane beam and a connecting cross beam. The end face of the tail end of the inlaid traveling crane beam completely coincides with the end face of the front end of the main traveling crane beam to ensure that the two can be butt-jointed. The inlaid traveling crane beam of the inlaid beam is installed on the main traveling crane beam of the main beam, and the front end of the inlaid traveling crane beam is fixed to the front end of the main traveling crane beam;

[0006] The main traveling crane is installed on the main traveling crane beam and is connected to the transmission mechanism. The maximum stroke of the main traveling crane is the front end position of the main traveling crane beam. The main traveling crane further includes at least a locking device for the follower trolley and a steel cable loop;

[0007] The described follower trolley includes at least one set of locking devices, which are used for locking between the follower trolleys or locking with the front end of the inlaid traveling beam. Two sets of follower trolleys are installed at the front end of the inlaid traveling beam, locked between the two sets of follower trolleys, and one of the sets of follower trolleys is locked with the front end of the inlaid traveling beam;

[0008] Two sets of lifting lugs are also provided on the described base, and the positions of the two sets of lifting lugs ensure that the center of gravity of the equipment coincides with the position of the lifting center.

[0009] Further, a front main beam connecting plate and a rear main beam connecting plate are respectively provided on the front end face and the rear end face of the inlaid traveling beam. A docking and mating structure for docking with the front main beam connecting plate and the rear main beam connecting plate is provided on the front end face of the main traveling beam. Fitting fixing holes are provided on the front main beam connecting plate and the rear main beam connecting plate. A hanging plate is provided at the fitting position between the front main beam connecting plate and the follower trolley, and a locking hole is provided on the hanging plate.

[0010] Further, the main traveling vehicle includes a main traveling vehicle plate, a main traveling wheel protection groove, a main traveling wheel set and a guide wheel set. The main traveling wheel protection groove is located at the bottom surface of the main traveling vehicle plate. The main traveling wheel sets are respectively installed in the main traveling wheel protection groove. The guide wheel sets are respectively installed at the bottom of the main traveling vehicle plate through cushion blocks. The main traveling wheel sets are placed on the surface of the main traveling beam, and the guide wheel sets are embedded in the upper edge of the main traveling beam; The steel cable pull rings are installed on both sides of the main traveling vehicle plate, and the locking device is installed at the front end of the main traveling vehicle plate.

[0011] Further, the transmission mechanism adopts a chain transmission. The transmission chain is arranged along the length direction on the side of the main traveling beam. The active transmission end of the transmission chain is installed on the power mechanism, and the driven transmission end is installed on the side of the front end of the main traveling beam. The main traveling vehicle is installed on the transmission chain.

[0012] Further, the main traveling vehicle also includes a telescopic ejector rod and a zipper bolt. The telescopic ejector rod is installed on the main traveling vehicle plate, and the extending direction of the ejector rod of the telescopic ejector rod corresponds to the follower trolley. The zipper bolts are installed on both sides of the main traveling vehicle plate, and the main traveling vehicle is installed on the transmission chain through the zipper bolts.

[0013] Further, the follower trolley includes a follower traveling vehicle plate, a receiving seat, a main traveling wheel protection groove, a main traveling wheel set and a guide wheel set. A locking ring is provided at the tail end of the follower traveling vehicle plate. A fixing groove is provided on the receiving seat. The main traveling wheel protection groove is located at the bottom surface of the follower traveling vehicle plate. The main traveling wheel sets are respectively installed in the main traveling wheel protection groove. The guide wheel sets are respectively installed at the bottom of the follower traveling vehicle plate through fixing plates. The main traveling wheel sets are placed on the surface of the inlaid traveling beam, and the guide wheel sets are embedded in the upper edge of the inlaid traveling beam; The locking device is installed at the front end of the follower traveling vehicle plate.

[0014] Further, the main beam further includes a docking support plate, which is located at the lower part of the front end of the main traveling beam, and the docking support plate is welded to the main traveling beam and the base, and a lapping groove is formed between the docking support plate and the front end of the main traveling beam.

[0015] Further, a fixing structure for inlaying the traveling beam is provided on the docking support plate.

[0016] Further, the positioning machine further includes an electric control system, and the control circuit of the electric control system includes an emergency stop circuit, a main traveling beam forward circuit, a main traveling beam backward circuit, a power-on indicator light and a phase loss indicator light. Among them, an emergency stop circuit, a main traveling beam forward circuit, a main traveling beam backward circuit and a power-on indicator light are connected in parallel with a phase loss protector between the transformer, and the phase loss indicator light is separately connected in series with a phase loss protector; a remote control circuit and a limit switch contact are also arranged in the main traveling beam forward circuit and the main traveling beam backward circuit.

[0017] Advantages of the present invention:

[0018] 1. The device adopts the combination of the main beam and the inlaid beam to ensure that the device has sufficient length to be successfully lapped on the base of the heat exchanger platform, and is equipped with a carrying trolley and a tractor to provide a moving carrier for the heat exchanger, greatly reducing the hoisting difficulty, reducing the labor force and improving the work efficiency.

[0019] 2. By designing the follow-up trolley and the main traveling beam to move and lock in a separated and combined manner on the device, the control balance of the whole device is provided, ensuring that the lifting center coincides with the center of gravity of the device and solving the biggest difficulty in the high-altitude positioning of the device.

[0020] 3. Due to the flexible movement of the follow-up trolley, the installation base of the heat exchanger installation platform can be quickly and accurately found, realizing the quick and accurate positioning of the heat exchanger installation work.

[0021] 4. A steel cable pull ring is designed on the main traveling beam, which can realize the flexible connection with the follow-up trolley. Through the cooperation of the telescopic ejector rod, the stroke blank left by the transmission action at the docking part of the inlaid beam and the main beam is solved, and the telescopic ejector rod smoothly pushes the follow-up trolley into the stroke part of the inlaid beam.

[0022] 5. The control circuit of the electric control system is provided with an access point for the remote control circuit, realizing the dual control guarantee of wire control and remote control, and improving the convenience and safety of operation at the same time. Brief description of the drawings

[0023] Figure 1 is a structural schematic diagram of the present invention;

[0024] Figure 2 is a side view of the present invention;

[0025] Figure 3 is a top view of the present invention;

[0026] Figure 4 is the front view of the present invention;

[0027] Figure 5 is the schematic diagram of the using state of the present invention;

[0028] Figure 6 is the side view of the using state of the present invention;

[0029] Figure 7 is the top view of the using state of the present invention;

[0030] Figure 8 is the schematic diagram of the structure of the inlaid beam;

[0031] Figure 9 is the schematic diagram of the structure from the upward view of the main traveling crane;

[0032] Figure 10 is the front view of the main traveling crane;

[0033] Figure 11 is the top view of the main traveling crane;

[0034] Figure 12 is the schematic diagram of the structure of the follow-up trolley;

[0035] Figure 13 is the schematic diagram of the structure from the upward view of the follow-up trolley;

[0036] Figure 14 is the circuit diagram of the electric control system of the present invention;

[0037] Figure 15 is the wiring diagram of the wire control system of the present invention;

[0038] Figure 16 is the wiring diagram of the remote control system of the present invention;

[0039] Figure 17 is the layout diagram of the components inside the electric control box;

[0040] Figure 18 is the schematic diagram of the wire control panel inside the electric control box;

[0041] Figure 19 is the layout schematic diagram of the remote control panel.

[0042] As shown in the figure: 1. Main beam; 2. Inserted beam; 3. Main traveling crane; 4. Transmission mechanism; 5. Power mechanism; 6. First follow-up trolley; 7. Second follow-up trolley; 8. Docking support plate; 9. Lifting lug; 10. Electric control box; 31. Main traveling crane plate; 32. Main traveling wheel guard groove a; 33. Main traveling wheel set a; 34. Guide wheel set a; 35. Zip bolt; 36. Cable pull ring; 37. Locking device a; 38. Telescopic ejector rod; 41. Transmission chain; 51. Reducer; 52. Driving motor; 101. Base; 102. Main traveling crane beam; 103. Side beam; 201. Inserted traveling crane beam; 202. Connecting cross beam; 211. Front main beam connecting plate; 212. Rear main beam connecting plate; 213. Hanging plate; 901. Follow-up traveling crane plate; 902. Bearing seat; 903. Main traveling wheel guard groove b; 904. Main traveling wheel set b; 905. Guide wheel set b; 906. Locking device b; 907. Fixed groove. Detailed implementation method

[0043] Embodiment

[0044] The following is further described in conjunction with the attached drawings. Figure 1-13 This is a schematic diagram of this example. The high-altitude positioning machine for heat exchangers shown in the figure includes a main beam 1, an inserted beam 2, a main traveling crane 3, two sets of follow-up trolleys, a transmission mechanism 4 and a power mechanism 5. Among them, the main beam 1 serves as the load-bearing body of the positioning machine, and the inserted beam 2 serves as an extended part of the main beam 1 to ensure that the equipment has sufficient length to be successfully lapped on the base of the heat exchanger platform. To solve the balance problem of the entire positioning machine during hoisting and considering issues such as cost and maintenance, the inserted beam 2 and the main beam 1 adopt a stacked structure.

[0045] Design of the main beam 1: It includes a base 101, a main traveling crane beam 102 and a side beam 103. The main traveling crane beam 102 is made of I-beam, and the front end face of the main traveling crane beam 102 is provided with a docking and mating structure with the front and rear end faces of the inserted beam 2.

[0046] Design and assembly of the inlaid beam 2: It includes the inlaid traveling beam 201 and the connecting cross beam 202. The inlaid traveling beam 201 uses an I-beam of the same model as the main traveling beam 102. The end face of the tail end of the inlaid traveling beam 201 completely coincides with the end face of the front end of the main traveling beam 102, and the two can be butted. The front end face and the tail end face of the inlaid traveling beam 201 are respectively provided with a front main beam connecting plate 211 and a rear main beam connecting plate 212. The front main beam connecting plate 211 and the rear main beam connecting plate 212 are provided with mating fixing holes for butt-joint and fixing with the butt-joint structure of the front end face of the main traveling beam 102. A hanging plate 213 is provided at the mating position of the front main beam connecting plate 211 and the follow-up trolley. The hanging plate 213 is equipped with a locking hole for locking the follow-up trolley. The inlaid traveling beam 201 of the inlaid beam 2 is stacked on the main traveling beam 102 of the main beam 1, and the front end of the inlaid traveling beam 201 is fixed to the butt-joint structure of the front end face of the main traveling beam 102 through the mating fixing holes on the front main beam connecting plate 211 by fixing bolts.

[0047] Design and assembly of the power mechanism 5 and the transmission mechanism 4: The power mechanism 5 includes a reducer 51 and a driving motor 52. The driving motor 52 and the reducer 51 are installed at the tail end of the main beam 1. The reducer 51 is connected to the driving motor 52. The power supply wiring of the driving motor 52 and the reducer 51 is connected into the power connection box, and the power connection box is arranged at the tail end of the main beam 1. During operation, the external power supply line is connected to the wiring terminal in the power box. The transmission mechanism 4 adopts a chain drive. The transmission chain 41 is arranged along the length direction on the side of the main traveling beam 102. The driving transmission end of the transmission chain 41 is installed on the main shaft of the reducer 51, and the driven transmission end is installed on the side of the front end of the main traveling beam 102 through a rotating shaft.

[0048] Design and assembly of the main traveling crane 3: The main traveling crane 3 includes a main traveling crane plate 31, a main traveling wheel guard groove a32, a main traveling wheel set a33 and a guide wheel set a34. The main traveling wheel guard groove a32 is located at the bottom surface of the main traveling crane plate 31. The main traveling wheel sets a33 are respectively installed in the main traveling wheel guard groove a32. The guide wheel sets a34 are respectively installed at the bottom of the main traveling crane plate 31 through pads. The main traveling wheel sets a33 are placed on the surface of the main traveling beam 102, and the guide wheel sets a33 are embedded in the upper edge of the main traveling beam 102. Zip bolts 35 are installed on both sides of the main traveling crane plate 31, and the main traveling crane plate 31 is connected to the transmission chain 41 through the zip bolts 35;

[0049] In order to achieve the soft connection and hard connection between the main traveling crane 4 and the follow-up trolley, a steel cable pull ring 36 and a locking device a37 are also provided on the main traveling crane plate 31. The steel cable pull ring 36 is installed on both sides of the main traveling crane plate 31, and the locking device a37 is installed at the front end of the main traveling crane plate 31;

[0050] To solve the problem of the travel blank left by the transmission action of the transmission mechanism 4 at the docking position between the inlaid beam 2 and the main beam 102, a telescopic ejector rod 38 is installed on the main board 31 of the main crane 3, and the ejector rod extending direction of the telescopic ejector rod 38 corresponds to the follow-up trolley, ensuring that the extended state of the telescopic ejector rod 38 can reach the follow-up trolley.

[0051] Design and assembly of the follow-up trolley: The follow-up trolley includes a follow-up traveling board 901, a receiving seat 902, a main traveling wheel guard groove b903, a main traveling wheel group b904 and a guide wheel group b905. A locking ring is provided at the tail end of the follow-up traveling board 901 for locking between the follow-up trolleys and locking with the main crane 3. A locking device b906 is provided at the front end of the follow-up traveling board 901 for locking between the follow-up trolleys and locking with the inlaid beam 2; a fixing groove 907 is provided on the receiving seat 902, the main traveling wheel guard groove b903 is located at the bottom surface of the follow-up traveling board 901, the main traveling wheel groups b905 are respectively installed in the main traveling wheel guard groove b903, the guide wheel groups b905 are respectively installed at the bottom of the follow-up traveling board 901 through fixing plates, the main traveling wheel group b904 is placed on the surface of the inlaid traveling beam 201, and the guide wheel groups b905 are embedded in the upper edge of the inlaid traveling beam 201. Among them, the locking device b906 of the first follow-up trolley 6 is locked in matching with the lock hole of the hanging plate 213 on the inlaid beam 2, and the locking device b906 of the second follow-up trolley 7 is locked in matching with the locking ring at the tail end of the first follow-up trolley 6.

[0052] For the docking strength and quick positioning between the inlaid beam 2 and the main beam 1, the positioning machine is also designed with a docking support plate 8. The docking support plate 8 is located at the lower part of the front end of the main crane beam 102, and the docking support plate 8 is welded to the main crane beam 102 and the base 101. The docking support plate 8 and the front end of the main crane 6 form a lapping groove, and a fixing structure for the inlaid traveling beam 101 is provided on the docking support plate 8 to increase the docking strength of the inlaid beam 2.

[0053] Assembly of the lifting lugs 9: Two groups of lifting lugs 9 are installed on the base 101, and the positions of the two groups of lifting lugs 9 ensure that when the inlaid beam 2 and the main beam are stacked, the center of gravity of the entire positioning machine coincides with the position of the lifting center.

[0054] Design of the electric control system: The electric control system of this positioning machine includes a wire control part and a remote control part. The electric control box 10 is arranged on the side beam 103 at the front end of the main beam 1. The remote control includes a receiver and a transmitter, and the receiver is integrated in the electric control box 10. As Figure 14-16 shown, the control circuit of the electric control system includes an emergency stop circuit, a main crane forward circuit, a main crane backward circuit, a power-on indicator light and a phase loss indicator light. Among them, an emergency stop circuit, a main crane forward circuit, a main crane backward circuit and a power-on indicator light are connected in parallel with a phase loss protector between the transformer, and the phase loss indicator light is separately connected in series with a phase loss protector. A remote control circuit and a limit switch contact are provided in the main crane forward circuit and the main crane backward circuit.

[0055] For the convenience of understanding the working principle of the high-altitude positioning machine for heat exchangers during the removal and installation of heat exchangers, the following further explains the working process;

[0056] Process of removing the heat exchanger:

[0057] 1. Use the hoisting equipment to lift the high-altitude positioning machine for heat exchangers through the lifting lug 9. During hoisting, the positioning machine is in a stacked state of the inlaid beam 2 and the main beam 1. The first follow-up trolley 6 is in a locked state with the front end of the inlaid beam 2, and the first follow-up trolley 6 and the second follow-up trolley 7 are in a locked state, so it is in a balanced state. Lift the high-altitude positioning machine to near the heat exchanger to be removed and place the positioning machine on the ground or the working platform.

[0058] 2. Remove the fixing bolts that fix the docking and mating structure between the mating fixing holes on the front main beam connecting plate 211 of the inlaid traveling beam 201 and the front end face of the main traveling beam 102. Find the center balance point of the inlaid beam 2 and dock the inlaid beam 2 with the main beam 1.

[0059] 3. After the inlaid beam 2 is docked with the main beam 1, fix it with fixing bolts. The fixing bolts are fixed through the mating fixing holes on the rear main beam connecting plate 212 and the docking and mating structure of the front end face of the main traveling beam 102.

[0060] 4. Only release the locking of the locking device b906 of the first follow-up trolley 6 and the locking hole of the hanging plate 213 on the inlaid beam 2. Manually pull the first follow-up trolley 6 and the second follow-up trolley 7 together onto the main traveling beam 102 of the main beam 1. Lock the main traveling crane 3 and the second follow-up trolley 7 through the cooperation of the locking device a37 on the main traveling crane 3 and the locking ring of the second follow-up trolley 7. At this time, the first follow-up trolley 6, the second follow-up trolley 7 and the main traveling crane 3 are locked together.

[0061] 5. Use the main traveling crane 3 to tow the first follow-up trolley 6 and the second follow-up trolley 7 to the tail end of the main traveling beam 102 of the main beam 1.

[0062] 6. Use the hoisting equipment to lift the high-altitude positioning machine for heat exchangers in the state of step 5 through the lifting lug 9, and adjust the balance of the positioning machine by driving the movement position of the main traveling crane 3 on the main traveling beam 102 of the main beam 1.

[0063] 7. Lift the high-altitude positioning machine for heat exchangers to near the installation base of the heat exchanger to be removed. Use the chain block to lift the heat exchanger off the installation base of the heat exchanger, and then place the front end of the inlaid beam 2 on the installation base of the heat exchanger. The lower end of the front main beam connecting plate 211 of the inlaid traveling beam 201 hooks the frontmost fixing platform of the installation base of the heat exchanger. (Note: There are usually two fixing platforms on the installation base of the heat exchanger)

[0064] 8. Use the hoisting equipment to adjust so that the inlaid beam 2 of the high-altitude positioning machine for heat exchangers and the two fixing platform surfaces of the base of the heat exchanger are in smooth contact.

[0065] 9. Drive the main traveling crane 3 forward to the front end of the main traveling crane beam 102 of the main beam 1, release the connection lock between the main traveling crane 3 and the second follow-up trolley 7, and then release the lock between the first follow-up trolley 6 and the second follow-up trolley 7.

[0066] 10. Manually move the two follow-up trolleys to above the two fixed platforms respectively, and lower the heat exchanger lifted in step 7 so that the bolt holes on its fixed supports are aligned with the fixed slots 907 on the receiving seats 902 of the respective follow-up trolleys, and the center line of the heat exchanger coincides with the center line of the inlaid beam 2.

[0067] 11. Lower the heat exchanger so that the two fixed supports on the heat exchanger fall onto the fixed slots 907 on the two follow-up trolleys, and use M20 bolts to firmly fix the heat exchanger to the first follow-up trolley 6 and the second follow-up trolley 7 together.

[0068] 12. At this time, the main traveling crane 3 cannot be directly locked with the second follow-up trolley 7 again using the locking device a37 because of the travel blank left by the transmission chain 41 at the butt joint of the inlaid beam 2 and the main beam 1. The transmission chain 41 can only drive the main traveling crane 3 on the main beam 1 and cannot directly drive the main traveling crane 3 onto the inlaid beam 2. Therefore, a steel cable is needed here to make a flexible connection between the main traveling crane 3 and the second follow-up trolley 7.

[0069] 13. Drive the main traveling crane 3 backward about 1.5 meters. Due to inertia, the second follow-up trolley 7 will approach the main traveling crane 3. At this time, use the locking device a37 on the main traveling crane 3 to firmly lock the main traveling crane and the second follow-up trolley 7.

[0070] 14. Continue to drive the main traveling crane 3 backward to tow the first follow-up trolley 6 and the second follow-up trolley 7 to drag the heat exchanger, and observe whether the fixed platforms of the inlaid beam 2 and the installation base of the heat exchanger start to separate. Once separation starts, slowly lift the heat exchanger to the high-altitude positioning machine (at this time, the positioning machine should be in a balanced state). If it is not balanced, the balance can be adjusted by moving the main traveling crane 3 back and forth.

[0071] 15. After adjusting the balance, lift away the high-altitude positioning machine of the heat exchanger, and the heat exchanger is removed to end. Installation process of the heat exchanger:

[0072] The first 3 steps are the same as the heat exchanger removal process.

[0073] 4. Release the locking of the locking device b906 of the first follower trolley 6 with the lock hole of the hanging plate 213 on the inlaid beam 2. At the same time, release the locking between the first follower trolley 6 and the second follower trolley 7. Manually pull the first follower trolley 6 and the second follower trolley 7 together onto the main trolley beam 102 of the main beam 1. Lock the main trolley 3 and the second follower trolley 7 together through the cooperation of the locking device a37 on the main trolley 3 and the lock ring of the second follower trolley 7. At this time, the second follower trolley 7 and the main trolley 3 are locked together.

[0074] 5. Use the main trolley 3 to tow the second follower trolley 7 to the end of the main trolley beam 102 of the main beam 1.

[0075] 6. Use the hoisting equipment to lift the heat exchanger above the main beam 1. Manually adjust the position of the first follower trolley 6 on the main trolley beam 102 so that the bolt holes on the fixed supports of the lifted heat exchanger are aligned with the fixing grooves 907 on the receiving seats 902 of the respective follower trolleys and fall into the fixing grooves 907. Use M20 bolts to firmly fix the heat exchanger to the first follower trolley 6 and the second follower trolley 7.

[0076] 7. Use the hoisting equipment to slowly lift the heat exchanger aerial positioning machine and adjust the balance of the positioning machine by moving the main trolley.

[0077] 8. Lift the balanced heat exchanger aerial positioning machine to the installation base where the heat exchanger needs to be installed and slowly lower the positioning machine. The lower end of the front main beam connecting plate 211 of the inlaid trolley beam 201 hooks the fixed platform at the forefront of the installation base of the heat exchanger, and the inlaid beam 2 is in stable contact with the two fixed platform surfaces of the base of the heat exchanger.

[0078] 9. Drive the main trolley 3 forward to push the heat exchanger towards the installation base of the heat exchanger. When the main trolley 3 runs to the forefront of the main trolley beam 102, due to the travel blank left by the drive chain 41 at the docking of the inlaid beam 2 and the main beam 1, the main trolley 3 cannot directly tow the first follower trolley 6 and the second follower trolley 7 above the two fixed platforms of the heat exchanger installation base. At this time, the two follower trolleys are still nearly one meter away from their respective corresponding fixed platforms and have not reached the position. At this time, unlock the second follower trolley 7 and the main trolley 3 and drive the main trolley 3 backward about 1.5 meters.

[0079] 10. Manually push out and fix the telescopic ejector rod 38 installed on the main trolley plate 31 of the main trolley 3.

[0080] 11. Continue to drive the main trolley 3 forward. Under the push of the telescopic ejector rod 38, the first follower trolley 6 and the first follower trolley 6 continue to move forward. When they move above the two fixed platforms of the heat exchanger installation base, the heat exchanger is pushed into place.

[0081] 12. Remove the M20 bolts between the heat exchanger and the first follower trolley 6 and the second follower trolley 7, use a chain block to lift the heat exchanger, and the height at which the heat exchanger is lifted shall be based on the height that facilitates the hoisting of the equipment to be hoisted by this positioning machine, and retract the telescopic push rod 38.

[0082] 13. Adjust the positions of the first follower trolley 6 and the second follower trolley 7. After locking the first follower trolley 6 and the second follower trolley 7, then lock the second follower trolley 7 with the main traveling crane 3.

[0083] 14. Drive the main traveling crane 3 backward. When the main traveling crane 3 moves to the maximum stroke at the end of the main traveling crane beam 102, pay attention to the fixed platform of the installation base of the inlay beam 2 and the heat exchanger. When the inlay beam 2 separates from the fixed platform, at this time, this positioning machine should be in a balanced state.

[0084] 15. Use the hoisting equipment to lift the heat exchanger high-altitude positioning machine. If there is an imbalance, the balance can be adjusted by moving the main traveling crane 3 back and forth.

[0085] 16. Use the hoisting equipment to lift away the heat exchanger high-altitude positioning machine, lower the heat exchanger, and the installation of the heat exchanger is completed. Restore this positioning machine to its initial state.

[0086] The present invention is not limited to this embodiment. Any equivalent concept or change within the technical scope disclosed in the present invention shall be included in the protection scope of the present invention.

Claims

1. High-altitude positioning machine for heat exchanger, characterized in that, It includes a main beam, an inlaid beam, a main traveling crane, two sets of follower trolleys, a transmission mechanism and a power mechanism. The main beam includes a base, a main traveling crane beam and side beams. The transmission mechanism is transversely arranged on the main beam and is driven by the power mechanism, and the power mechanism is arranged at the tail end of the main beam; The inlaid beam includes an inlaid traveling crane beam and a connecting cross beam. The end face of the tail end of the inlaid traveling crane beam completely coincides with the end face of the front end of the main traveling crane beam to ensure that the two can be butt-jointed. The inlaid traveling crane beam of the inlaid beam is installed on the main traveling crane beam of the main beam, and the front end of the inlaid traveling crane beam is fixed to the front end of the main traveling crane beam; The main traveling crane is installed on the main traveling crane beam and is connected to the transmission mechanism. The maximum travel of the main traveling crane is the front end position of the main traveling crane beam. The main traveling crane also at least includes a locking device for the follower trolley and a steel cable pull ring; Each of the follower trolleys at least includes a locking device for locking between the follower trolleys or locking with the front end of the inlaid traveling crane beam. Two sets of follower trolleys are installed at the front end of the inlaid traveling crane beam, and are locked between the two sets of follower trolleys, and one of the sets of follower trolleys is locked with the front end of the inlaid traveling crane beam; Two groups of lifting lugs are also provided on the base, and the positions of the two groups of lifting lugs ensure that the center of gravity of the equipment coincides with the position of the lifting center; The front end face and the tail end face of the inlaid traveling crane beam are respectively provided with a front main beam connecting plate and a rear main beam connecting plate. The front end face of the main traveling crane beam is provided with a docking and mating structure for docking with the front main beam connecting plate and the rear main beam connecting plate. The front main beam connecting plate and the rear main beam connecting plate are provided with mating fixing holes. A hanging plate is provided at the mating position of the front main beam connecting plate and the follower trolley, and a locking hole is provided on the hanging plate; The main traveling crane includes a main traveling crane plate, a main traveling wheel protection groove, a main traveling wheel set and a guide wheel set. The main traveling wheel protection groove is located at the bottom surface of the main traveling crane plate. The main traveling wheel sets are respectively installed in the main traveling wheel protection groove. The guide wheel sets are respectively installed at the bottom of the main traveling crane plate through cushion blocks. The main traveling wheel sets are placed on the surface of the main traveling crane beam, and the guide wheel sets are embedded in the upper edge of the main traveling crane beam; The steel cable pull ring is installed on both sides of the main traveling crane plate, and the locking device is installed at the front end of the main traveling crane plate.

2. The high-altitude positioning machine for heat exchangers according to claim 1, characterized in that The transmission mechanism adopts chain transmission. The transmission chain is arranged along the length direction on the side of the main traveling crane beam. The active transmission end of the transmission chain is installed on the power mechanism, and the driven transmission end is installed on the side of the front end of the main traveling crane beam. The main traveling crane is installed on the transmission chain.

3. The heat exchanger high-altitude positioning machine according to claim 2, wherein The main traveling crane also includes a telescopic ejector rod and a zipper bolt. The telescopic ejector rod is installed on the main traveling crane plate, and the ejector rod of the telescopic ejector rod extends in the direction corresponding to the follower trolley. The zipper bolts are installed on both sides of the main traveling crane plate, and the main traveling crane is installed on the transmission chain through the zipper bolts.

4. The high-altitude positioning machine for heat exchangers according to claim 3, wherein The follower trolley includes a follower traveling crane plate, a receiving seat, a main traveling wheel protection groove, a main traveling wheel set and a guide wheel set. A locking ring is provided at the tail end of the follower traveling crane plate. A fixing groove is provided on the receiving seat. The main traveling wheel protection groove is located at the bottom surface of the follower traveling crane plate. The main traveling wheel sets are respectively installed in the main traveling wheel protection groove. The guide wheel sets are respectively installed at the bottom of the follower traveling crane plate through fixing plates. The main traveling wheel sets are placed on the surface of the inlaid traveling crane beam, and the guide wheel sets are embedded in the upper edge of the inlaid traveling crane beam; The locking device is installed at the front end of the follower traveling crane plate.

5. The high-altitude positioning machine for heat exchangers according to claim 4, characterized in that The main beam further includes a docking support plate, which is located at the lower part of the front end of the main traveling beam, and the docking support plate is welded to the main traveling beam and the base, and a lapping groove is formed between the docking support plate and the front end of the main traveling beam.

6. The high-altitude positioning machine for heat exchangers according to claim 5, characterized in that, The docking support plate is provided with a fixing structure for inlaying the traveling beam.

7. The high-altitude positioning machine for heat exchangers according to any one of claims 1-6, characterized in that, It further includes an electric control system. The control circuit of the electric control system includes an emergency stop circuit, a main traveling beam forward circuit, a main traveling beam backward circuit, a power-on indicator light and a phase-loss indicator light. Among them, a phase-loss protector is connected in parallel between the emergency stop circuit, the main traveling beam forward circuit, the main traveling beam backward circuit and the power-on indicator light and the transformer, and the phase-loss indicator light is separately connected in series with a phase-loss protector; a remote control circuit and a limit switch contact are also arranged in the main traveling beam forward circuit and the main traveling beam backward circuit.

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