Tube bundle pumping machine with power mechanism

Abstract

The invention discloses a tube bundle pumping machine with a power mechanism, which relates to the technical field of tube bundle pumping machines and comprises a tube bundle pumping machine frame, a main travelling crane, a small travelling crane, a speed reducer, a hydraulic driving system and the power mechanism. The diesel engine is adopted as the power mechanism, and compared with the limitation that a motor is used as the power mechanism and a cable is adopted for power supply in the prior art, the diesel engine is adopted as the power mechanism, limitation of a power source and the cable does not need to be considered, and therefore the diesel engine power mechanism can be suitable for various overhaul sites and is wider in application range; stronger power can be selected, and the tube bundle drawing and loading operation can be efficiently completed, so that the working efficiency of equipment is greatly improved; the pumping machine power adopting the diesel engine power is the diesel engine, the control voltage is direct current 24V, the electric pumping machine power is alternating current 380V voltage, and the diesel power pumping machine is safer and more reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of tube bundle extraction and installation machines, and specifically to a tube bundle extraction and installation machine with its own power mechanism. Background Art

[0002] The tube bundle extraction and installation machine is an indispensable mechanical equipment for the extraction and installation operations of the tube bundles of shell-and-tube heat exchangers. The existing rack part of the tube bundle extraction and installation machine adopts an assembled structure of an attached bottom frame and a rigid vertical frame. Devices such as a balance oil cylinder, a power mechanism, a main traveling crane, a small traveling crane, and a driving chain are assembled on the rack; among them, the power mechanism mainly relies on an electric motor to provide power. However, using an electric motor to provide power requires connecting an external cable during operation. For some sites without power supply, a longer power supply cable is needed for power supply, which is rather troublesome. Moreover, when power is supplied through the cable, it is necessary to ensure that both the cable and the power source support sufficient power, and it is necessary to pay attention that the cable cannot be damaged during operation, which greatly restricts the tube bundle extraction and installation machine, thus restricting the use range of the tube bundle extraction and installation machine and affecting the working efficiency of the tube bundle extraction and installation machine. Summary of the Invention

[0003] The purpose of the present invention is to provide a tube bundle extraction and installation machine with its own power mechanism, so as to solve the problem that the existing tube bundle extraction and installation machine using an electric motor as the power greatly restricts the tube bundle extraction and installation machine, thus restricting the use range of the tube bundle extraction and installation machine and affecting the working efficiency of the tube bundle extraction and installation machine as mentioned in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: It includes a horizontally arranged tube bundle extraction and installation machine rack. Two rack guide rails are arranged on the rack. A speed reducer is installed at the rightmost end of the rack guide rails. A hydraulic motor is installed on the speed reducer. The hydraulic motor is driven by a hydraulic pump driven by a power mechanism and drives the speed reducer. A pair of driving sprockets are installed on the output shaft of the speed reducer. The driving sprockets are connected to the main traveling crane through a chain, driving the main traveling crane to move in the axial direction.

[0005] Preferably, the tube bundle extraction and installation machine rack includes two horizontally and parallelly arranged rack side beams. A plurality of rack bottom cross beams that connect them into one body are parallelly arranged on the bottom surfaces of the two rack side beams. Two rack guide rails parallel to the rack side beams are arranged between the two rack side beams on the top surfaces of the plurality of rack bottom cross beams. A main traveling crane on the right side and a small traveling crane on the left side that can move axially along them are jointly arranged on the two rack guide rails; Two groups of rack columns are symmetrically arranged front and back on the outer sides of the two rack side beams. A base plate is arranged on the bottom surfaces of the two groups of rack columns and is in the same plane. The two rack columns that are symmetrically arranged front and back are connected into one body through a connecting plate below the rack bottom cross beam.

[0006] Preferably, a machine lifting ear is arranged at the top end of each rack lifting ear.

[0007] Preferably, the main traveling crane includes a traveling crane bottom plate disposed on the guide rails of the two racks and capable of moving axially along them. At the center of the top surface of the traveling crane bottom plate, a push rod is hinged. On the front and rear sides of the push rod, hydraulic reversing motors are disposed on the top surface of the traveling crane bottom plate. On both the front and rear sides of the main traveling crane, traveling crane zipper bolt assemblies extending outward are provided and connected with chains. Below the main traveling crane, a control hydraulic system disposed on the bottom surface of the bottom cross beam of the rack is connected.

[0008] Preferably, the small traveling crane includes a trolley chassis disposed on the guide rails of the two racks and capable of axial movement. On the top surface of the trolley chassis, an arc plate with a concave middle is provided.

[0009] Preferably, the speed reducer is disposed at the right end of the rack guide rail; on both the front and rear sides of the speed reducer, a speed reducer sprocket is provided, and a chain is commonly provided between the speed reducer sprocket and the corresponding traveling crane zipper bolt assembly.

[0010] Preferably, the speed reducer can be a gear speed reducer or a worm and gear speed reducer; the worm and gear speed reducer has self-locking; the self-locking of the gear speed reducer is completed by the hydraulic system.

[0011] Preferably, the hydraulic pump is a double pump, its front pump is a large flow pump and is connected to the hydraulic motor, and its rear pump is a small flow pump and is connected to the control hydraulic system; at the bottom of the two hydraulic oil tanks, a cross beam is used as a connecting pipe to connect them into one body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The present invention uses a diesel engine as the power mechanism. Compared with the traditional use of an electric motor as the power mechanism and the limitation of using cable power supply, using a diesel engine as the power mechanism does not need to consider the limitations of the power supply and cables. Therefore, it can be applied to various maintenance sites, and the applicable range is wider. In addition, using a diesel engine as the power mechanism can select a stronger power and can complete the extraction and installation operation of the tube bundle with high efficiency, thus greatly improving the working efficiency of the equipment; the power of the extraction machine with diesel power is a diesel engine, and the control voltage is 24V DC, while the power of the electric extraction machine is 380V AC voltage. The diesel-powered extraction machine is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an axonometric view;

[0015] Figure 2 is a front view;

[0016] Figure 3 is a top view;

[0017] Figure 4 is a right view;

[0018] In the figure: Tube bundle extraction machine frame - 1, frame side beam - 11, frame bottom cross beam - 12, frame guide rail - 13, frame column - 14, frame lifting lug - 15, main traveling crane - 2, traveling crane bottom plate - 21, top push rod - 22, hydraulic reversing motor - 23, traveling crane zipper bolt assembly - 24, control hydraulic system - 25, small traveling crane - 3, small crane chassis - 31, arc plate - 32, speed reducer - 4, speed reducer sprocket - 41, hydraulic drive system - 5, hydraulic oil tank - 51, hydraulic motor - 52, power mechanism - 6, power mechanism installation frame - 61, diesel engine - 62. Specific embodiments

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0020] Please refer to Figures 1-4 , Figure 1 as the axonometric view; Figure 2 as the front view; Figure 3 as the top view; Figure 4 as the right view.

[0021] The present invention provides a tube bundle extraction machine with its own power mechanism, which is used to provide power for the extraction and installation of the tube bundle by its own power mechanism during the process of tube bundle extraction and installation, and can complete the tube bundle extraction and installation operation without an external power mechanism, with a wider range of applications; it includes a horizontally arranged tube bundle extraction machine frame 1, on the top surface of the tube bundle extraction machine frame 1, along the axis of its transverse center, there are a main traveling crane 2 on the right side and a small traveling crane 3 on the left side that can move along its axial direction, at the right end of the tube bundle extraction machine frame 1, there is a speed reducer 4, the speed reducer 4 is connected to a hydraulic drive system 5 arranged below the tube bundle extraction machine frame 1, and on the top surface of the tube bundle extraction machine frame 1, near the right end, there is a power mechanism 6.

[0022] The tube bundle extraction machine frame 1 includes two horizontally and parallelly arranged frame side beams 11. On the bottom surfaces of the two frame side beams 11, a plurality of frame bottom cross beams 12 are parallelly arranged to connect them into one body. Between the two frame side beams 11 on the top surfaces of the plurality of frame bottom cross beams 12, two frame guide rails 13 parallel to the frame side beams 11 are arranged. A main traveling crane 2 on the right side and a small traveling crane 3 on the left side that can move along their axial directions are jointly arranged on the two frame guide rails 13. In addition, two groups of frame columns 14 are symmetrically arranged front and back on the outer sides of the two frame side beams 11. Base plates are arranged on the bottom surfaces of the two groups of frame columns 14 and are in the same plane. The two front and back symmetric frame columns 14 are connected into one body through a connecting plate below the frame bottom cross beam 12 to strengthen the overall structural strength of the tube bundle extraction machine frame 1. A frame lifting lug 15 is arranged at the top end of each frame column 14. Through the four frame lifting lugs 15, the tube bundle extraction machine frame 1 and the equipment installed thereon can be hoisted, so that it can be used for tube bundle extraction operations at various heights.

[0023] The main traveling crane 2 includes a traveling crane bottom plate 21 arranged on the two frame guide rails 13 and can move along their axial directions. At the center of the top surface of the traveling crane bottom plate 21, a top push rod 22 is hinged. On the front and back sides of the top push rod 22, a hydraulic reversing motor 23 is arranged on the top surface of the traveling crane bottom plate 21, so as to drive the top push rod 22 to perform reversing operations in the left and right directions. On the front and back sides of the main traveling crane 2, traveling crane zipper bolt assemblies 24 extending outward are arranged and connected with chains. The main traveling crane 2 can be driven to move axially through the chains. In addition, a control hydraulic system 25 arranged on the bottom surface of the frame bottom cross beam 12 is connected below the main traveling crane 2, which is used to control the attitude of the extraction machine and the hydraulic reversing motor 23 to drive the top push rod 22 to perform reversing operations.

[0024] The small traveling crane 3 includes a trolley bottom frame 31 arranged on the two frame guide rails 13 and can move axially. An arc-shaped plate 32 with a concave middle is arranged on the top surface of the trolley bottom frame 31, which is used for auxiliary support of the extracted tube bundle.

[0025] The speed reducer 4 is arranged at the right end of the frame guide rail 13. A speed reducer sprocket 41 is arranged on each of the front and back sides of the speed reducer 4. A chain is jointly arranged between the speed reducer sprocket 41 and the corresponding traveling crane zipper bolt assembly 24, so that the main traveling crane 2 can be driven to move axially through the chain.

[0026] The speed reducer 4 can be a gear speed reducer or a worm and gear speed reducer; the worm and gear speed reducer has self-locking; the self-locking of the gear speed reducer is completed by the hydraulic system.

[0027] The hydraulic drive system 5 includes hydraulic oil tanks 51 respectively arranged on the top surfaces of the two frame side beams 11 near the right end, and a power mechanism 6 is commonly arranged on the upper end surfaces of the two hydraulic oil tanks 51. The power mechanism 6 includes a power mechanism mounting frame 61 commonly arranged on the top surfaces of the two hydraulic oil tanks 51, and a diesel engine 62 is arranged on the inner side of the power mechanism mounting frame 61. The diesel engine 62 is connected to a hydraulic pump and a hydraulic motor 52 through a coupling. The hydraulic pump is a double hydraulic pump, and the front pump is connected to the hydraulic motor 52 and the reducer 4 through a high-pressure hose. The hydraulic motor drives the main crane 2 axially through the reducer sprocket 41 and the transmission chain brought by the reducer 4; the rear pump is connected to the hydraulic control system 25 through a hydraulic steel pipe to control the fixation and position adjustment of the pumping machine; the hydraulic pump and hydraulic motor 52 are arranged below the bottom cross beam 12 of the frame at the right end through a bracket.

[0028] The diesel engine 62 is connected to the hydraulic pump and the hydraulic motor 52 via a coupling, so that the power generated by the diesel engine 62 is transmitted to the reducer 4 via the hydraulic pump and the hydraulic motor 52, and then the axial movement of the main crane 2 is driven by the reducer 4.

[0029] The left one of the two hydraulic oil tanks 51 is an oil suction tank, and the right one is an oil return tank. The two hydraulic oil tanks 51 are connected into one by using the rightmost frame beam 12 as an oil pipe. The frame beam 12 is both a connecting pipe and a heat dissipation pipe. When the heat dissipation conditions are poor, heat dissipation fins can be added to the connecting pipe to increase the heat dissipation area.

[0030] The hydraulic pump driven by the diesel engine 62 distributes the hydraulic oil into two paths through the hydraulic distributor on the return tank of the hydraulic oil tank. One path drives the hydraulic motor 52 and the reducer 4 through the hydraulic hose. The other path is delivered to the hydraulic control system 25 through the hydraulic pipe to control the posture of the pumping machine.

[0031] The present invention adopts a diesel engine as a power mechanism. Compared with the traditional method of using an electric motor as a power mechanism and the limitation of using a cable for power supply, the diesel engine is used as a power mechanism without considering the limitation of power supply and cable, so it can be applied to various maintenance sites and has a wider range of applications. In addition, the diesel engine is used as a power mechanism, and a stronger power can be selected, and the pipe bundle extraction and installation operation can be completed efficiently, thereby greatly improving the working efficiency of the equipment; the diesel engine-powered extraction and installation machine is powered by a diesel engine, and the control voltage is DC 24V, while the electric extraction and installation machine is powered by an AC 380V voltage. The diesel-powered extraction and installation machine is safer and more reliable.

[0032] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, those of ordinary skill in the art can understand that, without departing from the principles and spirit of the present invention and without creative efforts, all other embodiments obtained by making various changes, modifications, substitutions, and variations to these embodiments fall within the scope of protection of the present invention.

Claims

1. A tube bundle extraction and installation machine with its own power mechanism, characterized in that: It includes a horizontally arranged tube bundle extraction machine frame (1), on which two frame guide rails (13) are provided. A speed reducer (4) is installed at the rightmost end of the frame guide rails. A hydraulic motor (52) is installed on the speed reducer (4). The hydraulic motor (52) is driven by a hydraulic pump driven by a power mechanism (6) and drives the speed reducer (4). A pair of driving sprockets (41) are installed on the output shaft of the speed reducer (4). The driving sprockets (41) are connected to the main traveling crane (2) through a chain, driving the main traveling crane (2) to move in the axial direction.

2. The tube bundle extraction and installation machine with its own power mechanism according to claim 1, characterized in that: The tube bundle extraction machine frame (1) includes two horizontally and parallelly arranged frame side beams (11). On the bottom surfaces of the two frame side beams (11), a plurality of frame bottom cross beams (12) are arranged in parallel to connect them into one body. Between the two frame side beams (11) on the top surfaces of the plurality of frame bottom cross beams (12), two frame guide rails (13) parallel to the frame side beams (11) are provided. A main traveling crane (2) on the right side and a small traveling crane (3) on the left side that can move axially along them are commonly arranged on the two frame guide rails (13). On the outer sides of the two frame side beams (11), two groups of frame columns (14) are symmetrically arranged front and back. On the bottom surfaces of the two groups of frame columns (14), a base plate is provided and is in the same plane. Between the two symmetrically arranged frame columns (14) front and back, they are connected into one body through a connecting plate below the frame bottom cross beam (12).

3. The tube bundle extraction and installation machine with its own power mechanism according to claim 2, characterized in that: A machine lifting ear (15) is provided at the top of each frame lifting ear (14).

4. The tube bundle extraction and installation machine with its own power mechanism according to claim 3, characterized in that: The main traveling crane (2) includes a traveling crane bottom plate (21) arranged on the two frame guide rails (13) and can move axially along them. A top push rod (22) is hinged at the center of the top surface of the traveling crane bottom plate (21). Hydraulic reversing motors (23) are arranged on the top surface of the traveling crane bottom plate (21) on the front and back sides of the top push rod (22). On the front and back sides of the main traveling crane (2), traveling crane zipper bolt assemblies (24) extending outward are provided and connected with a chain. Below the main traveling crane (2), a control hydraulic system (25) arranged on the bottom surface of the frame bottom cross beam (12) is connected.

5. The tube bundle extraction and installation machine with its own power mechanism according to claim 4, characterized in that: The small traveling crane (3) includes a small crane chassis (31) arranged on the two frame guide rails (13) and can move axially. An arc-shaped plate (32) with a concave middle is arranged on the top surface of the small crane chassis (31).

6. The tube bundle extraction and installation machine with its own power mechanism according to claim 5, characterized in that: The speed reducer (4) is arranged at the right end of the frame guide rail (13). A speed reducer sprocket (41) is provided on each of the front and back sides of the speed reducer (4). A chain is commonly arranged between the speed reducer sprocket (41) and the corresponding traveling crane zipper bolt assembly (24).

7. The tube bundle extraction and installation machine with its own power mechanism according to claim 6, characterized in that: The speed reducer (4) can be a gear speed reducer or a worm gear speed reducer. The worm gear speed reducer has self-locking by itself. The self-locking of the gear speed reducer is completed by a hydraulic system.

8. The tube bundle extraction and installation machine with its own power mechanism according to claim 7, characterized in that: The hydraulic pump is a double-pump. Its front pump is a large-flow pump and is connected to the hydraulic motor. Its rear pump is a small-flow pump and is connected to the control hydraulic system (25). At the bottom of the two hydraulic oil tanks (51), a cross beam is used as a connecting pipe to connect them into one body.

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