Universal pipe expanding tool for heat exchanger

Abstract

The utility model relates to the field of heat exchanger manufacturing, in particular to a universal pipe expanding tool for a heat exchanger, which is characterized by comprising a base, a support rod, a pipe expanding motor, a universal joint I, a connecting rod, a universal joint II, a pipe expanding head and a fastener. Under the adjustment of the first universal joint, the connecting rod and the second universal joint, the tube expanding head can conduct tube expanding work on a plurality of heat exchange tubes under a fixed station, and the working position does not need to be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger manufacturing field, concretely is a kind of heat exchanger universal tube expanding tool. BACKGROUND

[0002] Heat exchanger is important equipment for waste heat recovery and heat exchange in industrial production process, in manufacturing process, gap exists between the heat exchange tube and tube sheet of heat exchanger, needs to carry out tube expanding operation, reduces or eliminates gap, reduces the risk of leakage in running process.But in production process, since traditional tube expanding tool is rigid connection, when one heat exchange tube expands, it needs to move tube expanding tool to the axis direction of next heat exchange tube, there are hundreds of heat exchange tubes in heat exchanger, the workload of moving tool is huge.

[0003] Traditional tube expanding tool is lifting tube expanding motor and tube expanding head under travelling crane, and the torsion generated by the rotation of tube expanding motor needs to be counteracted by the operator, so the labor intensity is large during operation, and there are safety hazards, and the travelling crane is occupied for a long time, which affects other work. SUMMARY

[0004] To solve the above technical problems, the utility model provides a kind of heat exchanger universal tube expanding tool, tube expanding motor is installed on base and support rod, motor torque counterforce is applied to base and support rod, no need to hold by hand;And install two universal joints and telescopic connecting rod between tube expanding motor and tube expanding head, without moving base, it can realize the tube expanding work of multiple heat exchange tubes, reduce labor intensity, improve safety, and improve work efficiency.

[0005] The technical scheme adopted by the utility model is described as follows.

[0006] A kind of universal tube expanding tool for heat exchanger production includes base, support rod, tube expanding motor, motor mounting seat, universal joint one, telescopic connecting rod, universal joint two, tube expanding head, fastener;The base is fixedly connected with the support rod, the tube expanding motor is fixed on the motor mounting seat by bolt, the motor mounting seat is sleeved on the support rod, the height of the motor mounting seat can be adjusted by loosening the top screw on the motor mounting seat, the motor mounting seat, the tube expanding motor, the universal joint one, the telescopic connecting rod, the universal joint two and the tube expanding head can move up and down on the support rod.The tube expanding motor is connected with the universal joint one, the universal joint one is connected with the telescopic connecting rod, the telescopic connecting rod is connected with the universal joint two, and the universal joint two is connected with the tube expanding head.When the tube expanding head needs to change working position in a certain area, the base and the support rod do not need to be moved, and the working position of the tube expanding head can be adjusted under the adjustment of the universal joint one and the universal joint two.

[0007] Further, the support rod is welded and fixed with the base.

[0008] Further, the motor mounting seat is provided with threaded holes, and the expansion tube motor is fixed by using studs and nuts; and the side is provided with a top screw threaded hole, facilitating the installation of the top screw.

[0009] Further, the universal joint one right end is provided with a top screw threaded hole and a key groove, the expansion tube motor is provided with a key groove, facilitating the transmission and fastening of the universal joint one and the expansion tube motor; and the universal joint one left end is provided with a flange, facilitating the connection with the telescopic connecting rod.

[0010] Further, the universal joint two left end is provided with a top screw threaded hole and a key groove, the expansion tube head is provided with a key groove, facilitating the transmission and fastening of the universal joint two and the expansion tube head; and the universal joint two right end is provided with a flange, facilitating the connection with the telescopic connecting rod.

[0011] The utility model realizes beneficial effect:

[0012] The expansion tube motor is installed on the base and the support rod, the motor torque reaction force is applied on the base and the support rod, without manpower holding, reducing the labor intensity, improving the safety, liberating the crane; and two universal joints and telescopic connecting rods are installed between the expansion tube motor and the expansion tube head, without moving the base, the multiple expansion tube work of heat exchange pipes can be realized, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is universal expansion tube tool schematic view of an embodiment of the utility model;

[0014] Figure 2 It is motor mounting seat structure schematic view of an embodiment of the utility model;

[0015] Figure 3 It is telescopic connecting rod schematic view of an embodiment of the utility model;

[0016] In the drawing: 100 is base;200 is support rod;300 is expansion tube motor;400 is motor mounting seat;401 is top screw mounting hole one;402 is full thread stud;500 is universal joint one;600 is telescopic connecting rod;601 is square tube one;602 is square tube two;603 is positioning round steel;604 is connecting flange;700 is universal joint two;800 is expansion tube head;901 is top screw one;902 is top screw two;903 is hexagonal nut. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0018] See Figures 1-3 The utility model provides a universal pipe expanding tool structure.

[0019] As Figure 1 shown, a universal pipe expanding tool structure includes base 100, support rod 200, pipe expanding motor 300, motor mounting seat 400, universal joint one 500, telescopic connecting rod 600, universal joint two 700, pipe expanding head 800, jackscrew one 901, jackscrew two 902 and hexagonal nut 903, the base 100 is connected with the support rod 200, the pipe expanding motor 300 is fixed on the motor mounting seat 400 through bolt, the motor mounting seat 400 is sleeved on the support rod 200, the height of the motor mounting seat 400 can be adjusted by loosening the jackscrew on the motor mounting seat 400, the motor mounting seat 400, the pipe expanding motor 300, the universal joint one 500, the telescopic connecting rod 600, the universal joint two 700 and the pipe expanding head 800 can move up and down on the support rod 200. The pipe expanding motor 300 is connected with the universal joint one 500, the universal joint one 500 is connected with the telescopic connecting rod 600, the telescopic connecting rod 600 is connected with the universal joint two 700, and the universal joint two 700 is connected with the pipe expanding head 800. When the pipe expanding head 800 needs to change the working position, the base 100 and the support rod 200 do not need to be moved, and the working position of the pipe expanding head 800 can be adjusted under the adjustment of the universal joint one 500 and the universal joint two 700.

[0020] Further, as Figure 2 shown, the motor mounting seat 400 side has jackscrew mounting hole one 401 for installing jackscrew two 902, limiting the movement of motor mounting seat 400 on support rod 200, and the front face is welded with all-thread stud 402 for installing pipe expanding motor 300.

[0021] Further, the right end of the universal joint one 500 is provided with keyway and jackscrew mounting hole two for connecting with the pipe expanding motor 300 and transmitting torque, and the left end of the universal joint one 500 is provided with flange for connecting with the telescopic connecting rod 600 and transmitting torque.

[0022] Further, as Figure 3As shown, the telescopic connecting rod 600 comprises a first square tube 601, a second square tube 602, a positioning round steel 603, and a connecting flange 604. The first square tube 601 is inserted into the second square tube 602. The right end of the first square tube 601 has the positioning round steel 603, which slides within the sliding groove of the second square tube 602 during telescopic movement to prevent derailment. The connecting flange 604 is used to connect with the first universal joint 500 and the second universal joint 700 and to transmit torque.

[0023] Furthermore, a flat key is installed on the expansion head 800 for connecting with the universal joint 700 to transmit torque.

[0024] Furthermore, the tube expansion motor 300 is equipped with a flat key for connecting with the universal joint 500 to transmit torque.

[0025] Furthermore, the left end of the universal joint 700 has a keyway and a set screw mounting hole 3 for connecting with the expansion head 800 and transmitting torque, and the right end of the universal joint 700 has a flange for connecting with the telescopic connecting rod 600 and transmitting torque.

[0026] During assembly, such as Figure 1 As shown, the support rod 200 is welded and fixed to the base 100. The motor mounting base 400 is sleeved on the support rod 200 and positioned on the support rod 200 by the tightening of the second set screw 902. The expansion tube motor 300 is mounted on the motor mounting base 400 by the hexagonal nut 903. The right end of the universal joint 500 is mounted on the expansion tube motor 300 by a flat key and the second set screw 902. The right end of the telescopic connecting rod 600 is mounted on the left end of the universal joint 500 by a flange. The right end of the second universal joint 700 is mounted on the left end of the telescopic connecting rod 600 by a flange. The right end of the expansion tube head 800 is mounted on the left end of the universal joint 700 by a flat key and the second set screw 902.

Claims

1. A heat exchanger universal tube expander tool, characterized in that, Including base (100), support rod (200), expansion tube motor (300), motor mounting seat (400), universal joint one (500), telescopic connecting rod (600), universal joint two (700), expansion tube head (800), jackscrew one (901), jackscrew two (902), hexagonal nut (903); The base (100) and the support rod (200) are connected, the expansion tube motor (300) is fixed on the motor mounting seat (400) by bolt, the motor mounting seat (400) is sleeved on the support rod (200), the height of the motor mounting seat (400) can be adjusted by loosening the jackscrew on the motor mounting seat (400), the motor mounting seat (400), the expansion tube motor (300), the universal joint one (500), the telescopic connecting rod (600), the universal joint two (700), the expansion tube head (800) can move up and down on the support rod (200); The expansion tube motor (300) is connected with the universal joint one (500), the universal joint one (500) is connected with the telescopic connecting rod (600), the telescopic connecting rod (600) is connected with the universal joint two (700), and the universal joint two (700) is connected with the expansion tube head (800); When the expansion tube head (800) needs to change the working position, the base (100) and the support rod (200) do not need to be moved, and the working position of the expansion tube head (800) can be adjusted under the adjustment of the universal joint one (500) and the universal joint two (700).

2. The heat exchanger tube expanding tooling of claim 1, wherein, The motor mounting seat (400) side has jackscrew mounting hole one (401) for installing jackscrew, limiting the movement of motor mounting seat (400) on support rod (200); Its front face is welded with full thread stud (402) for installing expansion tube motor (300).

3. The heat exchanger tube expanding tool according to claim 1, wherein The universal joint one (500) has keyway at both ends for connecting with the expansion tube motor (300) and the telescopic connecting rod (600), and transmitting torque; And both ends have jackscrew mounting hole two for limiting the relative position of the universal joint one (500) and the expansion tube motor (300) and the telescopic connecting rod (600).

4. The heat exchanger tube expanding tool of claim 1, wherein, The telescopic connecting rod (600) is provided with a flat key for connecting with the universal joint one (500), the universal joint two (700), transmitting torque.

5. The heat exchanger tube expanding tool of claim 1, wherein, The universal joint two (700) has keyway at both ends for connecting with the telescopic connecting rod (600) and the expansion tube head (800), and transmitting torque; And both ends have jackscrew mounting hole three for limiting the relative position of the universal joint two (700) and the telescopic connecting rod (600) and the expansion tube head (800).

6. The heat exchanger tube expanding tool of claim 1, wherein, The expansion tube head (800) is provided with a flat key for connecting with the universal joint two (700), transmitting torque.

7. The heat exchanger tube expanding tool of claim 1, wherein, The support rod (200) is welded with the base (100), the motor mounting seat (400) is sleeved outside the support rod (200), and the positioning on the support rod (200) is completed by the tightening of the top screw two (902); the expansion tube motor (300) is installed on the motor mounting seat (400) through the hexagon nut (903); the right end of the universal joint one (500) is installed on the expansion tube motor (300) through the flat key and the top screw two (902); the right end of the telescopic connecting rod (600) is installed on the left end of the universal joint one (500) through the flat key and the top screw two (902); the right end of the universal joint two (700) is installed on the left end of the telescopic connecting rod (600) through the flat key and the top screw two (902); and the right end of the expansion tube head (800) is installed on the left end of the universal joint two (700) through the flat key and the top screw two (902).

Images