Method of operating a push tube device

Abstract

This invention relates to an operating method for a tube-pushing device, wherein the tube-pushing device includes a horizontal linear reciprocating motion component, a vertical linear reciprocating motion component, and an automatic tube-pushing component. The horizontal linear reciprocating motion component includes a base frame and a horizontal linear guide pair. The horizontal linear guide pair is mounted on the upper surface of the base frame. The vertical linear reciprocating motion component is mounted on the upper surface of the horizontal slider of the horizontal linear guide pair. The vertical linear reciprocating motion component includes a gantry frame, a vertical linear guide pair, and a vertical lifting actuator. The vertical linear guide pair is mounted on one side wall of the two vertical pillars of the gantry frame. The automatic tube-pushing component is mounted on the outer surface of the vertical slider of the vertical linear guide pair. The automatic tube-pushing component includes a housing, a tube-pushing mechanism, and a tube-pressing mechanism. The tube-pressing mechanism and the tube-pushing mechanism are respectively installed in the upper and lower parts of the internal cavity of the housing. The vertical lifting actuator is connected to the top of the housing via a connecting plate. This invention enables a mechanized, adaptive, and automatic tube-pushing assembly process.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger tube assembly technology in chemical equipment, and in particular to an operating method for a tube pushing device. Background Technology

[0002] The ultra-large EO (ethylene oxide) reactor is a core piece of equipment in the chemical industry, with a total of more than 10,000 heat exchange tubes inside. Currently, the assembly of heat exchange tubes mainly relies on manual pushing, which has technical drawbacks such as high labor intensity, high labor costs, long time cycle and low tube pushing efficiency. Summary of the Invention

[0003] The technical problem solved by this invention is the technical defects of existing chemical equipment pipe fitting assembly processes, which are characterized by high strength, high cost, long cycle and low efficiency due to manual pushing.

[0004] To solve the above-mentioned technical problems, the present invention provides a tube pushing device, including a horizontal linear reciprocating motion component, a vertical linear reciprocating motion component, and an automatic tube pushing component. The horizontal linear reciprocating motion component includes a base frame and a horizontal linear guide rail pair. The horizontal linear guide rail pair is mounted on the upper surface of the base frame. The vertical linear reciprocating motion component is mounted on the upper surface of the horizontal slider of the horizontal linear guide rail pair. The vertical linear reciprocating motion component includes a gantry frame, a vertical linear guide rail pair, and a vertical lifting actuator. The vertical linear guide rail pair is mounted on one side wall of two vertical pillars along the horizontal linear reciprocating motion direction of the gantry frame. The automatic tube pushing component is mounted on the outer surface of the vertical slider of the vertical linear guide rail pair. The automatic tube pushing component includes a housing, a tube pushing mechanism, and a tube pressing mechanism. The tube pushing mechanism is mounted in the lower part of the internal cavity of the housing, and the tube pressing mechanism is mounted in the upper part. A gap is provided between the tube pushing mechanism and the tube pressing mechanism for placing heat exchange tubes. The push rod head of the vertical lifting actuator is connected to the top of the housing through a connecting plate.

[0005] This invention, by setting up a tube-pushing device including a horizontal linear reciprocating motion component, a vertical linear reciprocating motion component, and an automatic tube-pushing component, realizes a mechanized and adaptive automatic tube-pushing assembly process, thereby replacing the existing manual tube-pushing assembly process within the reactor. This significantly reduces the labor intensity of operators, saves labor costs, and significantly improves tube-pushing efficiency. The technical features of this invention are: firstly, it possesses rapid and efficient tube hole positioning capability. The operator first moves the horizontal linear guide pair of the horizontal linear reciprocating motion component, driving the vertical linear reciprocating motion component and the automatic tube-pushing component to approach any heat exchanger tube mounting hole position on the reactor's heat exchanger tube mounting plate horizontally. Then, the vertical lifting actuator and vertical linear guide pair of the vertical linear reciprocating motion component drive the automatic tube-pushing component to move vertically to the heat exchanger tube mounting hole position within the reactor and align the tube-pushing position; secondly, it possesses adaptive fine-tuning capability for the horizontal suspension position of the heat exchanger tube. For example, when pushing heat exchange tubes that have been partially inserted into the tube sheet, jamming or resistance may occur. In this case, the heat exchange tube will exert a reaction force on the automatic tube pushing assembly. This reaction force will be transmitted and act on the vertical and horizontal linear guide pairs. Subsequently, through the suspension and sliding characteristics of the vertical and horizontal linear guide pairs, the horizontal, height, and angle positions of the heat exchange tubes on the automatic tube pushing assembly are automatically fine-tuned, thereby effectively reducing or eliminating the pushing resistance and ensuring that the heat exchange tubes are automatically pushed and installed into place.

[0006] Furthermore, the vertical lifting actuator is a vertical lifting pneumatic actuator, which includes a lifting cylinder, a lifting manual pneumatic reversing valve, a lifting pneumatic pressure reducing valve, a lifting air compressor station, and a lifting compressed air pipeline. The lifting cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair and on the upper surface of the horizontal slider of the horizontal linear guide pair. The pneumatic push rod head at the top of the lifting cylinder is fixedly connected to the top of the housing through a Z-shaped connecting plate. The lifting manual pneumatic reversing valve and the lifting pneumatic pressure reducing valve are respectively mounted on the other side wall of the two vertical pillars of the gantry frame. The lifting manual pneumatic reversing valve is connected to the two air ports of the lifting cylinder. One end of the lifting pneumatic pressure reducing valve is connected to the lifting manual pneumatic reversing valve, and the other end is connected to the lifting air compressor station through the lifting compressed air pipeline.

[0007] The lifting manual pneumatic reversing valve and the lifting pneumatic pressure reducing valve jointly control the vertical extension stroke and extension height of the pneumatic push rod of the lifting cylinder through the lifting air compressor station and the lifting compressed air pipeline.

[0008] Furthermore, the vertical lifting actuator is a vertical lifting electric actuator, which includes a lifting electric cylinder, a lifting gearbox, and a lifting motor. The lifting electric cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair and on the upper surface of the horizontal slider of the horizontal linear guide pair. The electric push rod head at the top of the lifting electric cylinder is fixedly connected to the top of the housing through a Z-shaped connecting plate. The lifting gearbox and the lifting motor are respectively mounted on the other side wall of the two vertical pillars of the gantry frame. The lifting electric cylinder and the lifting motor are connected through the lifting gearbox.

[0009] The lifting motor drives and controls the extension and retraction stroke and height of the electric push rod of the lifting electric cylinder in the vertical direction through the lifting gearbox.

[0010] Furthermore, the vertical lifting actuator is a vertical lifting hydraulic actuator, which includes a lifting hydraulic cylinder, a lifting manual hydraulic directional valve, a lifting hydraulic pressure reducing valve, a lifting hydraulic station, and lifting hydraulic oil lines. The lifting hydraulic cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair and on the upper surface of the horizontal slider of the horizontal linear guide pair. The hydraulic push rod head at the top of the lifting hydraulic cylinder is fixedly connected to the top of the housing through a Z-shaped connecting plate. The lifting manual hydraulic directional valve and the lifting hydraulic pressure reducing valve are respectively mounted on the other side wall of the two vertical pillars of the gantry frame. The lifting manual hydraulic directional valve is connected to the two liquid ports of the lifting hydraulic cylinder. One end of the lifting hydraulic pressure reducing valve is connected to the lifting manual hydraulic directional valve, and the other end is connected to the lifting hydraulic station through the lifting hydraulic oil lines.

[0011] The lifting manual hydraulic directional valve and the lifting hydraulic pressure reducing valve jointly control the vertical extension and retraction stroke and height of the hydraulic push rod of the lifting hydraulic cylinder through the lifting hydraulic station and the lifting hydraulic oil pipeline.

[0012] Furthermore, the push tube mechanism includes two V-shaped rollers, two roller shafts, four bearing retaining rings, two bearing covers, two bearing through covers, four deep groove ball bearings, and two horizontal push tube actuators. Two bearing covers and two bearing through covers are respectively mounted side-by-side on the lower outer walls of both ends of the housing along the horizontal reciprocating motion direction. The centers of the bearing covers and the bearing through covers are collinear. Bearing mounting stepped holes are formed on both the inner side wall of the housing and the inner side wall of the housing, respectively. Each hole is equipped with a bearing retaining ring and a deep groove ball bearing. A roller shaft is installed between the two deep groove ball bearings. A V-shaped roller is fitted in the middle of the roller shaft located in the cavity inside the housing. A horizontal push tube actuator mounting seat is provided on the outer wall of the housing located at one end of the bearing cover. The horizontal push tube actuator is mounted on the horizontal push tube actuator mounting seat. The roller shaft located at one end of the bearing cover passes through and extends out of the outer side of the bearing cover and is connected to the output end of the horizontal push tube actuator.

[0013] The present invention uses two horizontal push tube actuators arranged in parallel to drive two roller shafts and two V-shaped rollers on them to rotate, thereby pushing the heat exchange tubes placed on the two V-shaped rollers to move horizontally until they are installed in place.

[0014] Furthermore, the roller shaft is connected to the V-shaped roller via a flat key, and the roller shaft is connected to the horizontal push tube actuator via a spline.

[0015] Furthermore, the horizontal push tube actuator is a horizontal push tube hydraulic actuator, which includes a horizontal push tube hydraulic motor, a horizontal push tube hydraulic station, and a horizontal push tube hydraulic oil pipeline. A horizontal push tube hydraulic motor mounting seat is provided on the outer wall of the housing located at one end of the bearing cover. The horizontal push tube hydraulic motor is mounted on the horizontal push tube hydraulic motor mounting seat. The horizontal push tube hydraulic motor is connected to the horizontal push tube hydraulic station through the horizontal push tube hydraulic oil pipeline. A horizontal push tube three-position four-way manual hydraulic directional valve is provided on the horizontal push tube hydraulic oil pipeline. The horizontal push tube three-position four-way manual hydraulic directional valve is used to control the forward rotation, reverse rotation, and stop action of the horizontal push tube hydraulic motor.

[0016] The present invention uses two horizontal push tube hydraulic motors arranged in parallel to drive two roller shafts and two V-shaped rollers on them to rotate, thereby pushing the heat exchange tubes placed on the two V-shaped rollers to move horizontally until they are installed in place.

[0017] Furthermore, the horizontal push tube actuator adopts the horizontal push tube electric motor, and a horizontal push tube electric motor mounting seat is provided on the outer wall of the housing located at one end of the bearing cover, and the horizontal push tube electric motor is mounted on the horizontal push tube electric motor mounting seat.

[0018] The present invention uses two parallel horizontal push tube electric motors to drive two roller shafts and two V-shaped rollers on them to rotate, thereby pushing the heat exchange tubes placed on the two V-shaped rollers to move horizontally until they are installed in place.

[0019] Furthermore, the horizontal push tube actuator is a horizontal push tube pneumatic actuator, which includes a horizontal push tube pneumatic motor, a horizontal push tube air compressor station, and a horizontal push tube compressed air pipeline. A horizontal push tube pneumatic motor mounting seat is provided on the outer wall of the housing located at one end of the bearing cover. The horizontal push tube pneumatic motor is mounted on the horizontal push tube pneumatic motor mounting seat, and the horizontal push tube pneumatic motor is connected to the horizontal push tube air compressor station through the horizontal push tube compressed air pipeline.

[0020] Furthermore, the clamping mechanism includes a clamping frame, a helical spring, a polyurethane-lined roller, a hinge pin, a thin nut, and a clamping bolt. The clamping frame is mounted on the upper part of the housing, and the hinge pin is mounted on the lower part of the clamping frame. The polyurethane-lined roller is fitted onto the hinge pin. One end of the hinge pin has a boss that abuts against the lower side of the clamping frame. The other end of the hinge pin is fixed and locked to the lower part of the clamping frame by the thin nut. A fixing rod is provided at the top of the clamping frame. The fixing rod extends out of the top of the housing and is fixed by fasteners. The helical spring is fitted onto the fixing rod located inside the housing. One end of the helical spring is located at the top of the clamping frame, and the other end is located on the inner wall of the top of the housing. The clamping bolt is mounted on the top of the clamping frame.

[0021] This invention achieves the technical effect of pressing down the heat exchange tube during the pushing process of the tube pusher mechanism, so as to smoothly complete the pushing action until the tube is installed in place.

[0022] Furthermore, the base frame also includes base lugs. The base frame adopts a square tube combined and welded rectangular structure, and the base lugs are installed at the outer corners of the four corners of the square tube combined and welded rectangular structure along the horizontal straight reciprocating motion direction.

[0023] Furthermore, the gantry frame is made by welding a combination of square tubes and steel plates.

[0024] Furthermore, the housing includes protective plates, which are installed on both ends of the housing along the horizontal pushing direction of the pushing tube mechanism, and the protective plates have through holes in the middle.

[0025] Furthermore, the V-shaped roller includes a V-shaped roller steel core and a V-shaped roller covering layer. The V-shaped roller covering layer is provided on the V-shaped surface of the V-shaped roller steel core. The V-shaped roller covering layer is made of rubber, preferably heat-resistant and wear-resistant rubber, to increase the frictional driving force between the V-shaped roller and the heat exchange tube, avoid slippage during the process of pushing the heat exchange tube, and further improve the tube pushing efficiency.

[0026] To solve the above-mentioned technical problems, the present invention also provides an operating method for a tube-pushing device, which, based on any of the preferred tube-pushing devices described above, includes the following steps:

[0027] S1: Place the pusher device on the lifting platform. First, adjust the base frame of the horizontal linear reciprocating motion component to be parallel to the reactor heat exchange tube mounting plate along the horizontal linear reciprocating motion direction. Then, level and straighten the base frame 1.1 in the vertical direction.

[0028] S2: Align the tube pushing mechanism of the automatic tube pushing assembly 3 with any heat exchange tube mounting hole on the reactor heat exchange tube mounting plate, activate the vertical lifting actuator, and send one end of a heat exchange tube into the tube pushing mechanism. The tube pushing mechanism drives two V-shaped rollers 3.3 to rotate synchronously through two horizontal tube pushing actuators and pushes the heat exchange tube into the heat exchange tube mounting hole in the horizontal direction until it is installed in place.

[0029] S3: By adjusting the height of the lifting platform, the horizontal movement of the horizontal linear reciprocating motion component 1 and the lifting movement of the vertical linear reciprocating motion component 2, the pushing mechanism continues to align with any other heat exchange tube mounting hole, and one end of another heat exchange tube is sent into the pushing mechanism. The pushing mechanism continues to automatically push the heat exchange tube into the heat exchange tube mounting hole according to step S2 until it is installed in place.

[0030] S4: Repeat steps S2 and S3 in a loop until all the heat exchange tubes are pushed into the heat exchange tube mounting holes and installed in place. Attached Figure Description

[0031] Figure 1 This is a perspective view of a preferred embodiment of the present invention.

[0032] Figure 2 for Figure 1 The front view of the horizontal linear reciprocating motion component, the vertical linear reciprocating motion component, and the automatic push tube component in the illustrated embodiment.

[0033] Figure 3 for Figure 1The top view of the horizontal linear reciprocating motion component, the vertical linear reciprocating motion component, and the automatic push tube component in the illustrated embodiment.

[0034] Figure 4 for Figure 1 The left view of the horizontal linear reciprocating motion component, the vertical linear reciprocating motion component, and the automatic push tube component in the illustrated embodiment.

[0035] Figure 5 for Figure 1 An exploded perspective view of the automatic push tube assembly in the illustrated embodiment.

[0036] Figure 6 for Figure 1 Left view of the automatic push tube assembly in the illustrated embodiment.

[0037] Figure 7 for Figure 1 Top view of the automatic push tube assembly in the illustrated embodiment.

[0038] Figure 8 for Figure 1 The front view of the automatic push tube assembly in the illustrated embodiment.

[0039] Figure 9 for Figure 1 A main cross-sectional view of the automatic tube pusher assembly in the illustrated embodiment.

[0040] Figure 10 for Figure 5 The main cross-sectional view of the V-shaped roller in the embodiment shown.

[0041] Figure 11 for Figure 5 Left view of the V-shaped roller in the illustrated embodiment.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1-Horizontal linear reciprocating motion assembly; 1.1-Base frame; 1.2-Horizontal linear guide rail pair; 1.3-Base lifting lug; 2-Vertical linear reciprocating motion assembly; 2.1-Gantry frame; 2.2-Vertical linear guide rail pair; 2.3-Lifting cylinder; 2.4-Lifting manual pneumatic reversing valve; 2.5-Lifting pneumatic pressure reducing valve; 3-Automatic push tube assembly; 3.1-Box body; 3.2-Pressure frame; 3.3-V-shaped roller; 3.3.1-V-shaped 3.3.2-V-shaped roller cladding; 3.4-Roller shaft; 3.5-Bearing retaining ring; 3.6-Guard plate; 3.7-Bearing cover; 3.8-Bearing cover; 3.9-Horizontal push tube hydraulic motor; 3.10-Deep groove ball bearing; 3.11-Helical spring; 3.12-Polyurethane lined roller; 3.13-Hinge pin; 3.14-Thin nut; 3.15-Clamping bolt; 3.16-Z-shaped connecting plate; 4-Heat exchange tube. Detailed Implementation

[0044] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] In the description of this invention, it should be noted that the terms used in the various embodiments, such as "upper," "lower," "front," "rear," "left," and "right," which indicate orientation, are only used to simplify the description of the positional relationships based on the accompanying drawings and do not mean that the components and devices referred to must be operated in accordance with the specific orientations and defined operations, methods, and structures in the specification. Such directional terms do not constitute a limitation of this invention.

[0046] An embodiment of the present invention provides a push tube device, such as Figures 1-4 As shown, the assembly includes a horizontal linear reciprocating motion component 1, a vertical linear reciprocating motion component 2, and an automatic pusher component 3. The horizontal linear reciprocating motion component 1 includes a base frame 1.1 and a horizontal linear guide rail pair 1.2. The horizontal linear guide rail pair 1.2 is mounted on the upper surface of the base frame 1.1, and the vertical linear reciprocating motion component 2 is mounted on the upper surface of the horizontal slider of the horizontal linear guide rail pair 1.2. The vertical linear reciprocating motion component 2 includes a gantry frame 2.1, a vertical linear guide rail pair 2.2, and a vertical lifting actuator. The gantry frame 2.1 moves horizontally... The vertical linear guide pair 2.2 is mounted on one side wall of the two vertical pillars in the direction of linear reciprocating motion. The automatic push tube assembly 3 is mounted on the outer surface of the vertical slider of the vertical linear guide pair 2.2. The automatic push tube assembly 3 includes a housing 3.1, a push tube mechanism and a press tube mechanism. The push tube mechanism is mounted in the lower part of the internal cavity of the housing 3.1, and the press tube mechanism is mounted in the upper part. There is a gap between the push tube mechanism and the press tube mechanism for placing the heat exchange tube 4. The push rod head of the vertical lifting actuator is connected to the top of the housing 3.1 through a connecting plate.

[0047] This embodiment achieves a mechanized and adaptive automatic tube pushing assembly process by setting up a tube pushing device including a horizontal linear reciprocating motion component 1, a vertical linear reciprocating motion component 2, and an automatic tube pushing component 3. This replaces the existing manual tube pushing assembly process for the heat exchanger tubes 4 inside the reactor, significantly reducing the labor intensity of operators, saving labor costs, and significantly improving tube pushing efficiency. The technical features of this embodiment are: firstly, it has a fast and efficient tube hole positioning capability. The operator first moves the horizontal linear guide rail pair 1.2 of the horizontal linear reciprocating motion component 1 to drive the vertical linear reciprocating motion component 2 and the automatic tube pushing component 3 to approach any heat exchanger tube mounting hole position on the reactor heat exchanger tube mounting plate in the horizontal direction. Then, the vertical lifting actuator of the vertical linear reciprocating motion component 2 and the vertical linear guide rail pair 2.2 drive the automatic tube pushing component 3 to move vertically to the heat exchanger tube mounting hole position inside the reactor and align the tube pushing position; secondly, it has the capability of adaptively fine-tuning the horizontal position of the suspended heat exchanger tube 4 and high... For example, when pushing a heat exchanger tube 4 that has been partially inserted into the tube sheet, jamming or resistance may occur. In this case, the heat exchanger tube 4 will exert a reaction force on the automatic tube pushing assembly 3. This reaction force will be transmitted and act on the vertical linear guide pair 2.2 and the horizontal linear guide pair 1.2. Subsequently, through the self-floating and sliding characteristics of the vertical linear guide pair 2.2 and the horizontal linear guide pair 1.2, the horizontal position, height position and angle position of the heat exchanger tube 4 on the automatic tube pushing assembly 3 are automatically fine-tuned, thereby effectively reducing or eliminating the pushing resistance, so that the heat exchanger tube 4 can be automatically pushed and installed into place smoothly.

[0048] Optionally, such as Figures 1-4 As shown, the vertical lifting actuator is a vertical lifting pneumatic actuator, which includes a lifting cylinder 2.3, a lifting manual pneumatic reversing valve 2.4, a lifting pneumatic pressure reducing valve 2.5, a lifting air compressor station, and a lifting compressed air pipeline. The lifting cylinder 2.3 is mounted vertically between the two vertical guide rails of the vertical linear guide pair 2.2 and on the upper surface of the horizontal slider of the horizontal linear guide pair 1.2. The pneumatic push rod head at the top of the lifting cylinder 2.3 is fixedly connected to the top of the housing 3.1 by a Z-shaped connecting plate 3.16. The lifting manual pneumatic reversing valve 2.4 and the lifting pneumatic pressure reducing valve 2.5 are respectively mounted on the other side wall of the two vertical pillars of the gantry frame 2.1. The lifting manual pneumatic reversing valve 2.4 is connected to the two air ports of the lifting cylinder 2.3. One end of the lifting pneumatic pressure reducing valve 2.5 is connected to the lifting manual pneumatic reversing valve 2.4, and the other end is connected to the lifting air compressor station through the lifting compressed air pipeline.

[0049] In this embodiment, the lifting manual pneumatic reversing valve 2.4 and the lifting pneumatic pressure reducing valve 2.5 jointly control the vertical extension stroke and extension height of the pneumatic push rod of the lifting cylinder 2.3 through the lifting air compressor station and the lifting compressed air pipeline.

[0050] Optionally, see Figures 1-4 As shown, the vertical lifting actuator is a vertical lifting electric actuator, which includes a lifting electric cylinder, a lifting gearbox, and a lifting motor. The lifting electric cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair 2.2 and on the upper surface of the horizontal slider of the horizontal linear guide pair 1.2. The electric push rod head at the top of the lifting electric cylinder is fixedly connected to the top of the housing 3.1 by a Z-shaped connecting plate 3.16. The lifting gearbox and the lifting motor are respectively mounted on the other side wall of the two vertical pillars of the gantry frame 2.1. The lifting electric cylinder and the lifting motor are connected through the lifting gearbox.

[0051] In this embodiment, the lifting motor drives and controls the electric push rod of the lifting electric cylinder to extend and retract in the vertical direction and the extension and retraction height through the lifting gearbox.

[0052] Optionally, see Figures 1-4 As shown, the vertical lifting actuator is a vertical lifting hydraulic actuator, which includes a lifting hydraulic cylinder, a lifting manual hydraulic directional valve, a lifting hydraulic pressure reducing valve, a lifting hydraulic station, and lifting hydraulic oil lines. The lifting hydraulic cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair 2.2 and on the upper surface of the horizontal slider of the horizontal linear guide pair 1.2. The hydraulic push rod head at the top of the lifting hydraulic cylinder is fixedly connected to the top of the housing 3.1 by a Z-shaped connecting plate 3.16. The lifting manual hydraulic directional valve and the lifting hydraulic pressure reducing valve are respectively mounted on the other side wall of the two vertical pillars of the gantry frame 2.1. The lifting manual hydraulic directional valve is connected to the two liquid ports of the lifting hydraulic cylinder. One end of the lifting hydraulic pressure reducing valve is connected to the lifting manual hydraulic directional valve, and the other end is connected to the lifting hydraulic station through the lifting hydraulic oil lines.

[0053] In this embodiment, the lifting manual hydraulic directional valve and the lifting hydraulic pressure reducing valve jointly control the vertical extension stroke and extension height of the hydraulic push rod of the lifting hydraulic cylinder through the lifting hydraulic station and the lifting hydraulic oil pipeline.

[0054] Optionally, such as Figures 5-9As shown, the push tube mechanism includes two V-shaped rollers 3.3, two roller shafts 3.4, four bearing retaining rings 3.5, two bearing covers 3.7, two bearing through covers 3.8, four deep groove ball bearings 3.10, and two horizontal push tube actuators. Two bearing covers 3.7 and two bearing through covers 3.8 are respectively mounted side-by-side on the lower outer walls of both ends of the housing 3.1 along the horizontal reciprocating motion direction. The centers of the bearing covers 3.7 and the bearing through covers 3.8 are collinear. Bearing mounting stepped holes are provided on the inner side of the housing 3.1 sidewall of the bearing cover 3.7 and the inner side of the bearing through covers 3.8 sidewall of the housing 3.1. Each stepped hole is fitted with a bearing retaining ring 3.5 and a deep groove ball bearing 3.10. A roller shaft 3.4 is installed between the two deep groove ball bearings 3.10. A V-shaped roller 3.3 is fitted in the middle of the roller shaft 3.4 located in the internal cavity of the housing 3.1. A horizontal push tube actuator mounting seat is provided on the outer wall of the housing 3.1 at one end of the bearing cover 3.8. The horizontal push tube actuator is mounted on the horizontal push tube actuator mounting seat. The roller shaft 3.4 at one end of the bearing cover 3.8 passes through and extends out of the outer side of the bearing cover 3.8 and is connected to the output end of the horizontal push tube actuator.

[0055] In this embodiment, two horizontal push tube actuators arranged in parallel drive two roller shafts 3.4 and two V-shaped rollers 3.3 on them to rotate, thereby pushing the heat exchange tube 4 placed on the two V-shaped rollers 3.3 to move horizontally until it is installed in place.

[0056] Optionally, see Figure 9 As shown, the roller shaft 3.4 is connected to the V-shaped roller 3.3 by a flat key, and the roller shaft 3.4 is connected to the horizontal push tube actuator by a spline.

[0057] Optionally, such as Figures 1-9 As shown, the horizontal push tube actuator is a horizontal push tube hydraulic actuator, which includes a horizontal push tube hydraulic motor 3.9, a horizontal push tube hydraulic station, and a horizontal push tube hydraulic oil pipeline. A horizontal push tube hydraulic motor mounting seat is provided on the outer wall of the housing 3.1 located at one end of the bearing cover 3.8. The horizontal push tube hydraulic motor 3.9 is mounted on the horizontal push tube hydraulic motor mounting seat. The horizontal push tube hydraulic motor 3.9 is connected to the horizontal push tube hydraulic station through the horizontal push tube hydraulic oil pipeline. A horizontal push tube three-position four-way manual hydraulic directional valve is provided on the horizontal push tube hydraulic oil pipeline. The horizontal push tube three-position four-way manual hydraulic directional valve is used to control the forward rotation, reverse rotation, and stop action of the horizontal push tube hydraulic motor 3.9.

[0058] In this embodiment, two horizontal pusher hydraulic motors 3.9 arranged in parallel drive two roller shafts 3.4 and two V-shaped rollers 3.3 on them to rotate, thereby pushing the heat exchange tubes 4 placed on the two V-shaped rollers 3.3 to move horizontally until they are installed in place.

[0059] Optionally, see Figures 1-9 As shown, the horizontal push tube actuator adopts the horizontal push tube electric motor. A horizontal push tube electric motor mounting seat is provided on the outer wall of the housing 3.1 located at one end of the bearing cover 3.8, and the horizontal push tube electric motor is mounted on the horizontal push tube electric motor mounting seat.

[0060] In this embodiment, two horizontal push tube electric motors arranged in parallel drive two roller shafts 3.4 and two V-shaped rollers 3.3 to rotate, thereby pushing the heat exchange tubes 4 placed on the two V-shaped rollers 3.3 to move horizontally until they are installed in place.

[0061] Optionally, see Figures 1-9 As shown, the horizontal push tube actuator adopts the horizontal push tube pneumatic actuator, which includes a horizontal push tube pneumatic motor, a horizontal push tube air compressor station, and a horizontal push tube compressed air pipeline. A horizontal push tube pneumatic motor mounting seat is provided on the outer wall of the housing 3.1 located at one end of the bearing cover 3.8. The horizontal push tube pneumatic motor is mounted on the horizontal push tube pneumatic motor mounting seat, and the horizontal push tube pneumatic motor is connected to the horizontal push tube air compressor station through the horizontal push tube compressed air pipeline.

[0062] Optionally, the clamping mechanism includes a clamping frame 3.2, a coil spring 3.11, a polyurethane-lined roller 3.12, a hinge pin 3.13, a thin nut 3.14, and a clamping bolt 3.15. The clamping frame 3.2 is mounted on the upper part of the housing 3.1, and the hinge pin 3.13 is mounted on the lower part of the clamping frame 3.2. The polyurethane-lined roller 3.12 is fitted onto the hinge pin 3.13. One end of the hinge pin 3.13 has a boss, which abuts against one side of the lower part of the clamping frame 3.2. The hinge pin 3.13 is fixedly locked to the lower part of the clamping frame 3.2 by the thin nut 3.14 at the other end. The clamping frame 3.2 is provided with a fixing rod at the top. The fixing rod extends out of the top of the box 3.1 and is fixed by fasteners. The helical spring 3.11 is fitted on the fixing rod inside the box 3.1. One end of the helical spring 3.11 is located at the top of the clamping frame 3.2, and the other end is located on the inner wall of the top of the box 3.1. The clamping bolt 3.15 is installed at the top of the clamping frame 3.2.

[0063] This embodiment achieves the technical effect of pressing the heat exchange tube 4 above it during the pushing process of the pushing mechanism, so as to smoothly complete the pushing action until the tube is installed in place.

[0064] Optionally, such as Figures 1-4 As shown, the base frame 1.1 also includes base lugs 1.3. The base frame 1.1 adopts a rectangular structure made of square tubes and welded together. The base lugs 1.3 are installed at the outer corners of the four corners of the rectangular structure made of square tubes and welded together along the horizontal straight reciprocating motion direction.

[0065] Optionally, such as Figures 1-4 As shown, the gantry frame 2.1 is made of square tubes and steel plates welded together.

[0066] Optionally, such as Figures 5-8 As shown, the housing 3.1 includes a protective plate 3.6. The protective plate 3.6 is installed on both ends of the housing 3.1 along the horizontal pushing direction of the pushing tube mechanism. The protective plate 3.6 has a tube hole in the middle.

[0067] Optionally, such as Figure 5 , Figures 8-11 As shown, the V-shaped roller 3.3 includes a V-shaped roller steel core 3.3.1 and a V-shaped roller covering layer 3.3.2. The V-shaped roller covering layer 3.3.2 is provided on the V-shaped surface of the V-shaped roller steel core 3.3.1. The V-shaped roller covering layer 3.3.2 is made of rubber, preferably heat-resistant and wear-resistant rubber, to increase the frictional driving force between the V-shaped roller 3.3 and the heat exchange tube 4, avoid slippage during the process of pushing the heat exchange tube 4, and further improve the tube pushing efficiency.

[0068] This invention also provides an operating method for a tube-pushing device, based on any of the preferred tube-pushing devices described above, such as... Figures 1-4 As shown, it includes the following steps:

[0069] S1: Place the pusher device on the lifting platform. First, adjust the base frame 1.1 of the horizontal linear reciprocating motion component 1 to be parallel to the reactor heat exchange tube mounting plate along the horizontal linear reciprocating motion direction. Then, level and straighten the base frame 1.1 in the vertical direction.

[0070] S2: Align the tube pushing mechanism of the automatic tube pushing assembly 3 with any heat exchange tube mounting hole on the reactor heat exchange tube mounting plate, activate the vertical lifting actuator, and send one end of a heat exchange tube 4 into the tube pushing mechanism. The tube pushing mechanism drives two V-shaped rollers 3.3 to rotate synchronously through two horizontal tube pushing actuators and pushes the heat exchange tube 4 into the heat exchange tube mounting hole in the horizontal direction until it is installed in place.

[0071] S3: By adjusting the height of the lifting platform, the horizontal movement of the horizontal linear reciprocating motion component 1 and the lifting movement of the vertical linear reciprocating motion component 2, the pushing mechanism is aligned with any other heat exchanger installation hole, and one end of another heat exchanger 4 is sent into the pushing mechanism. The pushing mechanism continues to automatically push the heat exchanger 4 into the heat exchanger installation hole according to step S2 until it is installed in place.

[0072] S4: Repeat steps S2 and S3 in a loop until all the heat exchange tubes 4 are pushed into the heat exchange tube mounting holes until they are installed in place.

[0073] While the present invention discloses the preferred embodiments described above, the present invention is not limited thereto. Those skilled in the art can make various arrangements and combinations of the above preferred embodiments to form complete technical solutions without departing from the spirit and scope of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A method of operating a push tube device, characterized by, The tube-pushing device includes a horizontal linear reciprocating motion assembly (1), a vertical linear reciprocating motion assembly (2), and an automatic tube-pushing assembly (3). The horizontal linear reciprocating motion assembly (1) includes a base frame (1.1) and a horizontal linear guide rail pair (1.2). The horizontal linear guide rail pair (1.2) is mounted on the upper surface of the base frame (1.1). The vertical linear reciprocating motion assembly (2) is mounted on the upper surface of the horizontal slider of the horizontal linear guide rail pair (1.2). The vertical linear reciprocating motion assembly (2) includes a gantry frame (2.1), a vertical linear guide rail pair (2.2), and a vertical lifting actuator. 2.1) The vertical linear guide pair (2.2) is installed on one side wall of the two vertical pillars along the horizontal linear reciprocating motion direction. The automatic push tube assembly (3) is installed on the outer surface of the vertical slider of the vertical linear guide pair (2.2). The automatic push tube assembly (3) includes a housing (3.1), a push tube mechanism and a press tube mechanism. The push tube mechanism is installed in the lower part of the internal cavity of the housing (3.1) and the press tube mechanism is installed in the upper part. There is a gap between the push tube mechanism and the press tube mechanism for placing the heat exchange tube (4). The push rod head of the vertical lifting actuator is connected to the top of the housing (3.1) through a connecting plate. The push tube mechanism includes two V-shaped rollers (3.3), two roller shafts (3.4), four bearing retaining rings (3.5), two bearing covers (3.7), two bearing through covers (3.8), four deep groove ball bearings (3.10), and two horizontal push tube actuators. Two bearing covers (3.7) and two bearing through covers (3.8) are mounted side-by-side on the lower outer walls of both ends of the housing (3.1) along the horizontal reciprocating motion direction. The center of the bearing cover (3.7) is collinear with the center of the bearing through cover (3.8). Bearing mounting stepped holes are provided on the inner side wall of the housing (3.1) of the bearing cover (3.7) and the inner side wall of the housing (3.1) of the bearing through cover (3.8). The bearing retaining ring (3.5) and the deep groove ball bearing (3.10) are respectively installed in the stepped holes of the bearing. The roller shaft (3.4) is installed between the two deep groove ball bearings (3.10). The V-shaped roller (3.3) is fitted in the middle of the roller shaft (3.4) located in the cavity inside the housing (3.1). A horizontal push tube actuator mounting seat is provided on the outer wall of the housing (3.1) located at one end of the bearing cover (3.8). The horizontal push tube actuator is mounted on the horizontal push tube actuator mounting seat. The roller shaft (3.4) located at one end of the bearing cover (3.8) passes through and extends out of the outer side of the bearing cover (3.8) and is connected to the output end of the horizontal push tube actuator. The clamping mechanism includes a clamping frame (3.2), a coil spring (3.11), a polyurethane-lined roller (3.12), a hinge pin (3.13), a thin nut (3.14), and a clamping bolt (3.15). The clamping frame (3.2) is mounted on the upper part of the housing (3.1), and the hinge pin (3.13) is mounted on the lower part of the clamping frame (3.2). The polyurethane-lined roller (3.12) is fitted onto the hinge pin (3.13). One end of the hinge pin (3.13) has a boss, which abuts against the lower side of the clamping frame (3.2). The hinge pin (3.13)... The hinge pin (3.13) is fixed and locked to the lower part of the clamping frame (3.2) by the thin nut (3.14) at the other end. The clamping frame (3.2) is provided with a fixing rod at the top. The fixing rod extends out of the top of the box (3.1) and is fixed by fasteners. The helical spring (3.11) is fitted on the fixing rod inside the box (3.1). One end of the helical spring (3.11) is located at the top of the clamping frame (3.2), and the other end is located on the inner wall of the top of the box (3.1). The clamping bolt (3.15) is installed at the top of the clamping frame (3.2). The operation method includes the following steps: S1: Place the push tube device on the lifting platform. First, adjust the base frame (1.1) of the horizontal linear reciprocating motion component (1) to be parallel to the reactor heat exchange tube mounting plate along the horizontal linear reciprocating motion direction. Then, level and straighten the base frame (1.1) in the vertical direction. S2: Align the tube pushing mechanism of the automatic tube pushing assembly (3) with any heat exchange tube mounting hole on the reactor heat exchange tube mounting plate, start the vertical lifting actuator, and send one end of a heat exchange tube (4) into the tube pushing mechanism. The tube pushing mechanism drives two V-shaped rollers (3.3) to rotate synchronously through two horizontal tube pushing actuators and pushes the heat exchange tube (4) into the heat exchange tube mounting hole in the horizontal direction until it is installed in place. S3: By adjusting the height of the lifting platform, the horizontal movement of the horizontal linear reciprocating motion component (1) and the lifting movement of the vertical linear reciprocating motion component (2), the pushing mechanism continues to align with any other heat exchange tube mounting hole, and one end of another heat exchange tube (4) is sent into the pushing mechanism. The pushing mechanism continues to automatically push the heat exchange tube (4) into the heat exchange tube mounting hole according to step S2 until it is installed in place. S4: Repeat steps S2 and S3 in a loop until all the heat exchange tubes (4) are pushed into the heat exchange tube mounting holes until they are installed in place.

2. The method of operating a push tube device of claim 1, wherein, The vertical lifting actuator is a vertical lifting pneumatic actuator, which includes a lifting cylinder (2.3), a lifting manual pneumatic reversing valve (2.4), a lifting pneumatic pressure reducing valve (2.5), a lifting air compressor station, and a lifting compressed air pipeline. The lifting cylinder (2.3) is mounted vertically between the two vertical guide rails of the vertical linear guide pair (2.2) and on the upper surface of the horizontal slider of the horizontal linear guide pair (1.2). The pneumatic push rod head at the top of the lifting cylinder (2.3) is connected to the housing. (3.1) The tops are fixedly connected by a Z-shaped connecting plate (3.16). The lifting manual pneumatic reversing valve (2.4) and the lifting pneumatic pressure reducing valve (2.5) are respectively installed on the other side wall of the two vertical pillars of the gantry frame (2.1). The lifting manual pneumatic reversing valve (2.4) is connected to the two air ports of the lifting cylinder (2.3). One end of the lifting pneumatic pressure reducing valve (2.5) is connected to the lifting manual pneumatic reversing valve (2.4), and the other end is connected to the lifting air compressor station through the lifting compressed air pipeline.

3. The operating method of the push tube device according to claim 1, characterized in that, The vertical lifting actuator is a vertical lifting electric actuator, which includes a lifting electric cylinder, a lifting gearbox, and a lifting motor. The lifting electric cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair (2.2) and on the upper surface of the horizontal slider of the horizontal linear guide pair (1.2). The electric push rod head at the top of the lifting electric cylinder is fixedly connected to the top of the housing (3.1) through a Z-shaped connecting plate (3.16). The lifting gearbox and the lifting motor are respectively mounted on the other side wall of the two vertical pillars of the gantry frame (2.1). The lifting electric cylinder and the lifting motor are connected through the lifting gearbox.

4. The operating method of the push tube device according to claim 1, characterized in that, The vertical lifting actuator is a vertical lifting hydraulic actuator, which includes a lifting hydraulic cylinder, a lifting manual hydraulic directional valve, a lifting hydraulic pressure reducing valve, a lifting hydraulic station, and a lifting hydraulic oil pipeline. The lifting hydraulic cylinder is mounted vertically between the two vertical guide rails of the vertical linear guide pair (2.2) and on the upper surface of the horizontal slider of the horizontal linear guide pair (1.2). The hydraulic push rod head at the top of the lifting hydraulic cylinder is fixedly connected to the top of the housing (3.1) by a Z-shaped connecting plate (3.16). The lifting manual hydraulic directional valve and the lifting hydraulic pressure reducing valve are respectively mounted on the other side wall of the two vertical pillars of the gantry frame (2.1). The lifting manual hydraulic directional valve is connected to the two liquid ports of the lifting hydraulic cylinder. One end of the lifting hydraulic pressure reducing valve is connected to the lifting manual hydraulic directional valve, and the other end is connected to the lifting hydraulic station through the lifting hydraulic oil pipeline.

5. The operating method of the push tube device according to claim 1, characterized in that, The horizontal push tube actuator is a horizontal push tube hydraulic actuator, which includes a horizontal push tube hydraulic motor (3.9), a horizontal push tube hydraulic station, and a horizontal push tube hydraulic oil pipeline. A horizontal push tube hydraulic motor mounting seat is provided on the outer wall of the housing (3.1) located at one end of the bearing cover (3.8). The horizontal push tube hydraulic motor (3.9) is mounted on the horizontal push tube hydraulic motor mounting seat. The horizontal push tube hydraulic motor (3.9) is connected to the horizontal push tube hydraulic station through the horizontal push tube hydraulic oil pipeline. A horizontal push tube three-position four-way manual hydraulic directional valve is provided on the horizontal push tube hydraulic oil pipeline.

6. The method of operating the push tube device according to claim 1, characterized in that, The horizontal push tube actuator is a horizontal push tube electric motor. A horizontal push tube electric motor mounting seat is provided on the outer wall of the housing (3.1) located at one end of the bearing cover (3.8), and the horizontal push tube electric motor is mounted on the horizontal push tube electric motor mounting seat.

7. The method of operating the push tube device according to claim 1, characterized in that, The horizontal push tube actuator is a horizontal push tube pneumatic actuator, which includes a horizontal push tube pneumatic motor, a horizontal push tube air compressor station, and a horizontal push tube compressed air pipeline. A horizontal push tube pneumatic motor mounting seat is provided on the outer wall of the housing (3.1) located at one end of the bearing cover (3.8). The horizontal push tube pneumatic motor is mounted on the horizontal push tube pneumatic motor mounting seat. The horizontal push tube pneumatic motor is connected to the horizontal push tube air compressor station through the horizontal push tube compressed air pipeline.

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